Improve process API

Prefix symbols and constants names and improve documentation.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,29 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+ - [ ] I have read the [FAQ](https://github.com/Genymobile/scrcpy/blob/master/FAQ.md).
+ - [ ] I have searched in existing [issues](https://github.com/Genymobile/scrcpy/issues).
+
+**Environment**
+ - OS: [e.g. Debian, Windows, macOS...]
+ - scrcpy version: [e.g. 1.12.1]
+ - installation method: [e.g. manual build, apt, snap, brew, Windows release...]
+ - device model:
+ - Android version: [e.g. 10]
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+On errors, please provide the output of the console (and `adb logcat` if relevant).
+
+```
+Please paste terminal output in a code block.
+```
+
+Please do not post screenshots of your terminal, just post the content as text instead.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,22 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+ - [ ] I have checked that a similar [feature request](https://github.com/Genymobile/scrcpy/issues?q=is%3Aopen+is%3Aissue+label%3A%22feature+request%22) does not already exist.
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.gitignore

@@ -1,4 +1,9 @@
 build/
 /dist/
+/build-*/
+/build_*/
+/release-*/
 .idea/
 .gradle/
+/x/
+local.properties

BUILD.md

@@ -2,11 +2,60 @@
 
 Here are the instructions to build _scrcpy_ (client and server).
 
-You may want to build only the client: the server binary, which will be pushed
-to the Android device, does not depend on your system and architecture. In that
-case, use the [prebuilt server] (so you will not need Java or the Android SDK).
 
-[prebuilt server]: #prebuilt-server
+## Simple
+
+If you just want to install the latest release from `master`, follow this
+simplified process.
+
+First, you need to install the required packages:
+
+```bash
+# for Debian/Ubuntu
+sudo apt install ffmpeg libsdl2-2.0-0 adb wget \
+                 gcc git pkg-config meson ninja-build libsdl2-dev \
+                 libavcodec-dev libavdevice-dev libavformat-dev libavutil-dev \
+                 libusb-1.0-0 libusb-dev
+```
+
+Then clone the repo and execute the installation script
+([source](install_release.sh)):
+
+```bash
+git clone https://github.com/Genymobile/scrcpy
+cd scrcpy
+./install_release.sh
+```
+
+When a new release is out, update the repo and reinstall:
+
+```bash
+git pull
+./install_release.sh
+```
+
+To uninstall:
+
+```bash
+sudo ninja -Cbuild-auto uninstall
+```
+
+
+## Branches
+
+### `master`
+
+The `master` branch concerns the latest release, and is the home page of the
+project on Github.
+
+
+### `dev`
+
+`dev` is the current development branch. Every commit present in `dev` will be
+in the next release.
+
+If you want to contribute code, please base your commits on the latest `dev`
+branch.
 
 
 ## Requirements
@@ -40,15 +89,15 @@ Install the required packages from your package manager.
 
 ```bash
 # runtime dependencies
-sudo apt install ffmpeg libsdl2-2.0-0
+sudo apt install ffmpeg libsdl2-2.0-0 adb libusb-1.0-0
 
 # client build dependencies
-sudo apt install make gcc git pkg-config meson ninja-build \
+sudo apt install gcc git pkg-config meson ninja-build libsdl2-dev \
-                 libavcodec-dev libavformat-dev libavutil-dev \
+                 libavcodec-dev libavdevice-dev libavformat-dev libavutil-dev \
-                 libsdl2-dev
+                 libusb-dev
 
 # server build dependencies
-sudo apt install openjdk-8-jdk
+sudo apt install openjdk-11-jdk
 ```
 
 On old versions (like Ubuntu 16.04), `meson` is too old. In that case, install
@@ -67,7 +116,7 @@ pip3 install meson
 sudo dnf install https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm
 
 # client build dependencies
-sudo dnf install SDL2-devel ffms2-devel meson gcc make
+sudo dnf install SDL2-devel ffms2-devel libusb-devel meson gcc make
 
 # server build dependencies
 sudo dnf install java-devel
@@ -90,13 +139,13 @@ sudo apt install mingw-w64 mingw-w64-tools
 You also need the JDK to build the server:
 
 ```bash
-sudo apt install openjdk-8-jdk
+sudo apt install openjdk-11-jdk
 ```
 
 Then generate the releases:
 
 ```bash
-make -f Makefile.CrossWindows
+./release.sh
 ```
 
 It will generate win32 and win64 releases into `dist/`.
@@ -157,12 +206,12 @@ brew install pkg-config meson
 ```
 
 Additionally, if you want to build the server, install Java 8 from Caskroom, and
-make it avaliable from the `PATH`:
+make it available from the `PATH`:
 
 ```bash
-brew tap caskroom/versions
+brew tap homebrew/cask-versions
-brew cask install java8
+brew install adoptopenjdk/openjdk/adoptopenjdk11
-export JAVA_HOME="$(/usr/libexec/java_home --version 1.8)"
+export JAVA_HOME="$(/usr/libexec/java_home --version 1.11)"
 export PATH="$JAVA_HOME/bin:$PATH"
 ```
 
@@ -173,30 +222,44 @@ See [pierlon/scrcpy-docker](https://github.com/pierlon/scrcpy-docker).
 
 ## Common steps
 
-If you want to build the server, install the [Android SDK] (_Android Studio_),
+**As a non-root user**, clone the project:
-and set `ANDROID_HOME` to its directory. For example:
-
-[Android SDK]: https://developer.android.com/studio/index.html
-
-```bash
-export ANDROID_HOME=~/android/sdk
-```
-
-If you don't want to build the server, use the [prebuilt server].
-
-Clone the project:
 
 ```bash
 git clone https://github.com/Genymobile/scrcpy
 cd scrcpy
 ```
 
+
+### Build
+
+You may want to build only the client: the server binary, which will be pushed
+to the Android device, does not depend on your system and architecture. In that
+case, use the [prebuilt server] (so you will not need Java or the Android SDK).
+
+[prebuilt server]: #option-2-use-prebuilt-server
+
+
+#### Option 1: Build everything from sources
+
+Install the [Android SDK] (_Android Studio_), and set `ANDROID_SDK_ROOT` to its
+directory. For example:
+
+[Android SDK]: https://developer.android.com/studio/index.html
+
+```bash
+# Linux
+export ANDROID_SDK_ROOT=~/Android/Sdk
+# Mac
+export ANDROID_SDK_ROOT=~/Library/Android/sdk
+# Windows
+set ANDROID_SDK_ROOT=%LOCALAPPDATA%\Android\sdk
+```
+
 Then, build:
 
 ```bash
 meson x --buildtype release --strip -Db_lto=true
-cd x
+ninja -Cx  # DO NOT RUN AS ROOT
-ninja
 ```
 
 _Note: `ninja` [must][ninja-user] be run as a non-root user (only `ninja
@@ -205,9 +268,27 @@ install` must be run as root)._
 [ninja-user]: https://github.com/Genymobile/scrcpy/commit/4c49b27e9f6be02b8e63b508b60535426bd0291a
 
 
-### Run
+#### Option 2: Use prebuilt server
 
-To run without installing:
+ - [`scrcpy-server-v1.19`][direct-scrcpy-server]  
+   _(SHA-256: 876f9322182e6aac6a58db1334f4225855ef3a17eaebc80aab6601d9d1ecb867)_
+
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.19/scrcpy-server-v1.19
+
+Download the prebuilt server somewhere, and specify its path during the Meson
+configuration:
+
+```bash
+meson x --buildtype release --strip -Db_lto=true \
+    -Dprebuilt_server=/path/to/scrcpy-server
+ninja -Cx  # DO NOT RUN AS ROOT
+```
+
+The server only works with a matching client version (this server works with the
+`master` branch).
+
+
+### Run without installing:
 
 ```bash
 ./run x [options]
@@ -219,33 +300,19 @@ To run without installing:
 After a successful build, you can install _scrcpy_ on the system:
 
 ```bash
-sudo ninja install    # without sudo on Windows
+sudo ninja -Cx install    # without sudo on Windows
 ```
 
-This installs two files:
+This installs three files:
 
  - `/usr/local/bin/scrcpy`
- - `/usr/local/share/scrcpy/scrcpy-server.jar`
+ - `/usr/local/share/scrcpy/scrcpy-server`
-
+ - `/usr/local/share/man/man1/scrcpy.1`
-Just remove them to "uninstall" the application.
 
 You can then [run](README.md#run) _scrcpy_.
 
-
+### Uninstall
-## Prebuilt server
-
- - [`scrcpy-server-v1.9.jar`][direct-scrcpy-server]  
-   _(SHA-256: ad7e539f100e48259b646f26982bc63e0a60a81ac87ae135e242855bef69bd1a)_
-
-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.9/scrcpy-server-v1.9.jar
-
-Download the prebuilt server somewhere, and specify its path during the Meson
-configuration:
 
 ```bash
-meson x --buildtype release --strip -Db_lto=true \
+sudo ninja -Cx uninstall  # without sudo on Windows
-    -Dprebuilt_server=/path/to/scrcpy-server.jar
-cd x
-ninja
-sudo ninja install
 ```

DEVELOP.md

@@ -3,7 +3,7 @@
 ## Overview
 
 This application is composed of two parts:
- - the server (`scrcpy-server.jar`), to be executed on the device,
+ - the server (`scrcpy-server`), to be executed on the device,
  - the client (the `scrcpy` binary), executed on the host computer.
 
 The client is responsible to push the server to the device and start its
@@ -49,7 +49,7 @@ application may not replace the server just before the client executes it._
 Instead of a raw _dex_ file, `app_process` accepts a _jar_ containing
 `classes.dex` (e.g. an [APK]). For simplicity, and to benefit from the gradle
 build system, the server is built to an (unsigned) APK (renamed to
-`scrcpy-server.jar`).
+`scrcpy-server`).
 
 [dex]: https://en.wikipedia.org/wiki/Dalvik_(software)
 [apk]: https://en.wikipedia.org/wiki/Android_application_package
@@ -76,7 +76,7 @@ The server uses 3 threads:
  - the **main** thread, encoding and streaming the video to the client;
  - the **controller** thread, listening for _control messages_ (typically,
    keyboard and mouse events) from the client;
- - the **receiver** thread (managed by the controller), sending _device messges_
+ - the **receiver** thread (managed by the controller), sending _device messages_
    to the clients (currently, it is only used to send the device clipboard
    content).
 
@@ -189,7 +189,7 @@ The client uses 4 threads:
    recording,
  - the **controller** thread, sending _control messages_ to the server,
  - the **receiver** thread (managed by the controller), receiving _device
-   messages_ from the client.
+   messages_ from the server.
 
 In addition, another thread can be started if necessary to handle APK
 installation or file push requests (via drag&drop on the main window) or to
@@ -211,10 +211,10 @@ There are two [frames][video_buffer] simultaneously in memory:
  - the **rendering** frame, rendered in a texture from the main thread.
 
 When a new decoded frame is available, the decoder _swaps_ the decoding and
-rendering frame (with proper synchronization). Thus, it immediatly starts
+rendering frame (with proper synchronization). Thus, it immediately starts
 to decode a new frame while the main thread renders the last one.
 
-If a [recorder] is present (i.e. `--record` is enabled), then its muxes the raw
+If a [recorder] is present (i.e. `--record` is enabled), then it muxes the raw
 H.264 packet to the output video file.
 
 [stream]: https://github.com/Genymobile/scrcpy/blob/ffe0417228fb78ab45b7ee4e202fc06fc8875bf3/app/src/stream.h
@@ -268,3 +268,42 @@ For more details, go read the code!
 
 If you find a bug, or have an awesome idea to implement, please discuss and
 contribute ;-)
+
+
+### Debug the server
+
+The server is pushed to the device by the client on startup.
+
+To debug it, enable the server debugger during configuration:
+
+```bash
+meson x -Dserver_debugger=true
+# or, if x is already configured
+meson configure x -Dserver_debugger=true
+```
+
+If your device runs Android 8 or below, set the `server_debugger_method` to
+`old` in addition:
+
+```bash
+meson x -Dserver_debugger=true -Dserver_debugger_method=old
+# or, if x is already configured
+meson configure x -Dserver_debugger=true -Dserver_debugger_method=old
+```
+
+Then recompile.
+
+When you start scrcpy, it will start a debugger on port 5005 on the device.
+Redirect that port to the computer:
+
+```bash
+adb forward tcp:5005 tcp:5005
+```
+
+In Android Studio, _Run_ > _Debug_ > _Edit configurations..._ On the left, click on
+`+`, _Remote_, and fill the form:
+
+ - Host: `localhost`
+ - Port: `5005`
+
+Then click on _Debug_.

FAQ.it.md

@@ -0,0 +1,217 @@
+_Apri le [FAQ](FAQ.md) originali e sempre aggiornate._
+
+# Domande Frequenti (FAQ)
+
+Questi sono i problemi più comuni riportati e i loro stati.
+
+
+## Problemi di `adb`
+
+`scrcpy` esegue comandi `adb` per inizializzare la connessione con il dispositivo. Se `adb` fallisce, scrcpy non funzionerà.
+
+In questo caso sarà stampato questo errore:
+
+>     ERROR: "adb push" returned with value 1
+
+Questo solitamente non è un bug di _scrcpy_, ma un problema del tuo ambiente.
+
+Per trovare la causa, esegui:
+
+```bash
+adb devices
+```
+
+### `adb` not found (`adb` non trovato)
+
+È necessario che `adb` sia accessibile dal tuo `PATH`.
+
+In Windows, la cartella corrente è nel tuo `PATH` e `adb.exe` è incluso nella release, perciò dovrebbe già essere pronto all'uso.
+
+
+### Device unauthorized (Dispositivo non autorizzato)
+
+Controlla [stackoverflow][device-unauthorized] (in inglese).
+
+[device-unauthorized]: https://stackoverflow.com/questions/23081263/adb-android-device-unauthorized
+
+
+### Device not detected (Dispositivo non rilevato)
+
+>     adb: error: failed to get feature set: no devices/emulators found
+
+Controlla di aver abilitato correttamente il [debug con adb][enable-adb] (link in inglese).
+
+Se il tuo dispositivo non è rilevato, potresti avere bisogno dei [driver][drivers] (link in inglese) (in Windows).
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+[drivers]: https://developer.android.com/studio/run/oem-usb.html
+
+
+### Più dispositivi connessi
+
+Se più dispositivi sono connessi, riscontrerai questo errore:
+
+>     adb: error: failed to get feature set: more than one device/emulator
+
+l'identificatore del tuo dispositivo deve essere fornito:
+
+```bash
+scrcpy -s 01234567890abcdef
+```
+
+Notare che se il tuo dispositivo è connesso mediante TCP/IP, riscontrerai questo messaggio:
+
+>     adb: error: more than one device/emulator
+>     ERROR: "adb reverse" returned with value 1
+>     WARN: 'adb reverse' failed, fallback to 'adb forward'
+
+Questo è un problema atteso (a causa di un bug di una vecchia versione di Android, vedi [#5] (link in inglese)), ma in quel caso scrcpy ripiega su un metodo differente, il quale dovrebbe funzionare.
+
+[#5]: https://github.com/Genymobile/scrcpy/issues/5
+
+
+### Conflitti tra versioni di adb
+
+>     adb server version (41) doesn't match this client (39); killing...
+
+L'errore compare quando usi più versioni di `adb` simultaneamente. Devi trovare il programma che sta utilizzando una versione differente di `adb` e utilizzare la stessa versione dappertutto.
+
+Puoi sovrascrivere i binari di `adb` nell'altro programma, oppure chiedere a _scrcpy_ di usare un binario specifico di `adb`, impostando la variabile d'ambiente `ADB`:
+
+```bash
+set ADB=/path/to/your/adb
+scrcpy
+```
+
+
+### Device disconnected (Dispositivo disconnesso)
+
+Se _scrcpy_ si interrompe con l'avviso "Device disconnected", allora la connessione `adb` è stata chiusa.
+
+Prova con un altro cavo USB o inseriscilo in un'altra porta USB. Vedi [#281] (in inglese) e [#283] (in inglese).
+
+[#281]: https://github.com/Genymobile/scrcpy/issues/281
+[#283]: https://github.com/Genymobile/scrcpy/issues/283
+
+
+
+## Problemi di controllo
+
+### Mouse e tastiera non funzionano
+
+Su alcuni dispositivi potresti dover abilitare un opzione che permette l'[input simulato][simulating input] (link in inglese). Nelle opzioni sviluppatore, abilita:
+
+> **Debug USB (Impostazioni di sicurezza)**
+> _Permetti la concessione dei permessi e la simulazione degli input mediante il debug USB_
+<!--- Ho tradotto personalmente il testo sopra, non conosco esattamente il testo reale --->
+
+[simulating input]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+### I caratteri speciali non funzionano
+
+Iniettare del testo in input è [limitato ai caratteri ASCII][text-input] (link in inglese). Un trucco permette di iniettare dei [caratteri accentati][accented-characters] (link in inglese), ma questo è tutto. Vedi [#37] (link in inglese).
+
+[text-input]: https://github.com/Genymobile/scrcpy/issues?q=is%3Aopen+is%3Aissue+label%3Aunicode
+[accented-characters]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-accented-characters
+[#37]: https://github.com/Genymobile/scrcpy/issues/37
+
+
+## Problemi del client
+
+### La qualità è bassa
+
+Se la definizione della finestra del tuo client è minore di quella del tuo dispositivo, allora potresti avere una bassa qualità di visualizzazione, specialmente individuabile nei testi (vedi [#40] (link in inglese)).
+
+[#40]: https://github.com/Genymobile/scrcpy/issues/40
+
+Per migliorare la qualità di ridimensionamento (downscaling), il filtro trilineare è applicato automaticamente se il renderizzatore è OpenGL e se supporta la creazione di mipmap.
+
+In Windows, potresti voler forzare OpenGL:
+
+```
+scrcpy --render-driver=opengl
+```
+
+Potresti anche dover configurare il [comportamento di ridimensionamento][scaling behavior] (link in inglese):
+
+> `scrcpy.exe` > Propietà > Compatibilità > Modifica impostazioni DPI elevati > Esegui l'override del comportamento di ridimensionamento DPI elevati >  Ridimensionamento eseguito per:  _Applicazione_.
+
+[scaling behavior]: https://github.com/Genymobile/scrcpy/issues/40#issuecomment-424466723
+
+
+
+### Crash del compositore KWin
+
+In Plasma Desktop, il compositore è disabilitato mentre _scrcpy_ è in esecuzione.
+
+Come soluzione alternativa, [disattiva la "composizione dei blocchi"][kwin] (link in inglese).
+<!--- Non sono sicuro di aver tradotto correttamente la stringa di testo del pulsante --->
+
+[kwin]: https://github.com/Genymobile/scrcpy/issues/114#issuecomment-378778613
+
+
+## Crash
+
+### Eccezione
+
+Ci potrebbero essere molte ragioni. Una causa comune è che il codificatore hardware del tuo dispositivo non riesce a codificare alla definizione selezionata:
+
+> ```
+> ERROR: Exception on thread Thread[main,5,main]
+> android.media.MediaCodec$CodecException: Error 0xfffffc0e
+> ...
+> Exit due to uncaughtException in main thread:
+> ERROR: Could not open video stream
+> INFO: Initial texture: 1080x2336
+> ```
+
+o
+
+> ```
+> ERROR: Exception on thread Thread[main,5,main]
+> java.lang.IllegalStateException
+>         at android.media.MediaCodec.native_dequeueOutputBuffer(Native Method)
+> ```
+
+Prova con una definizione inferiore:
+
+```
+scrcpy -m 1920
+scrcpy -m 1024
+scrcpy -m 800
+```
+
+Potresti anche provare un altro [codificatore](README.it.md#codificatore).
+
+
+## Linea di comando in Windows
+
+Alcuni utenti Windows non sono familiari con la riga di comando. Qui è descritto come aprire un terminale ed eseguire `scrcpy` con gli argomenti:
+
+ 1. Premi <kbd>Windows</kbd>+<kbd>r</kbd>, questo apre una finestra di dialogo.
+ 2. Scrivi `cmd` e premi <kbd>Enter</kbd>, questo apre un terminale.
+ 3. Vai nella tua cartella di _scrcpy_ scrivendo (adatta il percorso):
+
+    ```bat
+    cd C:\Users\user\Downloads\scrcpy-win64-xxx
+    ```
+
+    e premi <kbd>Enter</kbd>
+ 4. Scrivi il tuo comando. Per esempio:
+
+    ```bat
+    scrcpy --record file.mkv
+    ```
+
+Se pianifichi di utilizzare sempre gli stessi argomenti, crea un file `myscrcpy.bat` (abilita mostra [estensioni nomi file][show file extensions] per evitare di far confusione) contenente il tuo comando nella cartella di `scrcpy`. Per esempio:
+
+```bat
+scrcpy --prefer-text --turn-screen-off --stay-awake
+```
+
+Poi fai doppio click su quel file.
+
+Potresti anche modificare (una copia di) `scrcpy-console.bat` o `scrcpy-noconsole.vbs` per aggiungere alcuni argomenti.
+
+[show file extensions]: https://www.techpedia.it/14-windows/windows-10/171-visualizzare-le-estensioni-nomi-file-con-windows-10

FAQ.ko.md

@@ -0,0 +1,84 @@
+# 자주하는 질문 (FAQ)
+
+다음은 자주 제보되는 문제들과 그들의 현황입니다.
+
+
+### Windows 운영체제에서, 디바이스가 발견되지 않습니다.
+
+가장 흔한 제보는 `adb`에 발견되지 않는 디바이스 혹은 권한 관련 문제입니다.
+다음 명령어를 호출하여 모든 것들에 이상이 없는지 확인하세요:
+
+    adb devices
+
+Windows는 당신의 디바이스를 감지하기 위해 [드라이버]가 필요할 수도 있습니다.
+
+[드라이버]: https://developer.android.com/studio/run/oem-usb.html
+
+
+### 내 디바이스의 미러링만 가능하고, 디바이스와 상호작용을 할 수 없습니다.
+
+일부 디바이스에서는, [simulating input]을 허용하기 위해서 한가지 옵션을 활성화해야 할 수도 있습니다.
+개발자 옵션에서 (developer options) 다음을 활성화 하세요:
+
+> **USB debugging (Security settings)**
+> _권한 부여와 USB 디버깅을 통한 simulating input을 허용한다_
+
+[simulating input]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+### 마우스 클릭이 다른 곳에 적용됩니다.
+
+Mac 운영체제에서, HiDPI support 와 여러 스크린 창이 있는 경우, 입력 위치가 잘못 파악될 수 있습니다.
+[issue 15]를 참고하세요.
+
+[issue 15]: https://github.com/Genymobile/scrcpy/issues/15
+
+차선책은 HiDPI support을 비활성화 하고 build하는 방법입니다:
+
+```bash
+meson x --buildtype release -Dhidpi_support=false
+```
+
+하지만, 동영상은 낮은 해상도로 재생될 것 입니다.
+
+
+### HiDPI display의 화질이 낮습니다.
+
+Windows에서는, [scaling behavior] 환경을 설정해야 할 수도 있습니다.
+
+> `scrcpy.exe` > Properties > Compatibility > Change high DPI settings >
+> Override high DPI scaling behavior > Scaling performed by: _Application_.
+
+[scaling behavior]: https://github.com/Genymobile/scrcpy/issues/40#issuecomment-424466723
+
+
+### KWin compositor가 실행되지 않습니다
+
+Plasma Desktop에서는,_scrcpy_ 가 실행중에는 compositor가 비활성화 됩니다.
+
+차석책으로는, ["Block compositing"를 비활성화하세요][kwin].
+
+[kwin]: https://github.com/Genymobile/scrcpy/issues/114#issuecomment-378778613
+
+
+###비디오 스트림을 열 수 없는 에러가 발생합니다.(Could not open video stream).
+
+여러가지 원인이 있을 수 있습니다. 가장 흔한 원인은 디바이스의 하드웨어 인코더(hardware encoder)가
+주어진 해상도를 인코딩할 수 없는 경우입니다.
+
+```
+ERROR: Exception on thread Thread[main,5,main]
+android.media.MediaCodec$CodecException: Error 0xfffffc0e
+...
+Exit due to uncaughtException in main thread:
+ERROR: Could not open video stream
+INFO: Initial texture: 1080x2336
+```
+
+더 낮은 해상도로 시도 해보세요:
+
+```
+scrcpy -m 1920
+scrcpy -m 1024
+scrcpy -m 800
+```

FAQ.md

@@ -1,46 +1,181 @@
 # Frequently Asked Questions
 
-## Common issues
+[Read in another language](#translations)
-
-The application is very young, it is not unlikely that you encounter problems
-with it.
 
 Here are the common reported problems and their status.
 
 
-### On Windows, my device is not detected
+## `adb` issues
 
-The most common is your device not being detected by `adb`, or is unauthorized.
+`scrcpy` execute `adb` commands to initialize the connection with the device. If
-Check everything is ok by calling:
+`adb` fails, then scrcpy will not work.
 
-    adb devices
+In that case, it will print this error:
 
-Windows may need some [drivers] to detect your device.
+>     ERROR: "adb push" returned with value 1
 
+This is typically not a bug in _scrcpy_, but a problem in your environment.
+
+To find out the cause, execute:
+
+```bash
+adb devices
+```
+
+### `adb` not found
+
+You need `adb` accessible from your `PATH`.
+
+On Windows, the current directory is in your `PATH`, and `adb.exe` is included
+in the release, so it should work out-of-the-box.
+
+
+### Device unauthorized
+
+Check [stackoverflow][device-unauthorized].
+
+[device-unauthorized]: https://stackoverflow.com/questions/23081263/adb-android-device-unauthorized
+
+
+### Device not detected
+
+>     adb: error: failed to get feature set: no devices/emulators found
+
+Check that you correctly enabled [adb debugging][enable-adb].
+
+If your device is not detected, you may need some [drivers] (on Windows).
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
 [drivers]: https://developer.android.com/studio/run/oem-usb.html
 
 
-### Mouse clicks do not work
+### Several devices connected
+
+If several devices are connected, you will encounter this error:
+
+>     adb: error: failed to get feature set: more than one device/emulator
+
+the identifier of the device you want to mirror must be provided:
+
+```bash
+scrcpy -s 01234567890abcdef
+```
+
+Note that if your device is connected over TCP/IP, you'll get this message:
+
+>     adb: error: more than one device/emulator
+>     ERROR: "adb reverse" returned with value 1
+>     WARN: 'adb reverse' failed, fallback to 'adb forward'
+
+This is expected (due to a bug on old Android versions, see [#5]), but in that
+case, scrcpy fallbacks to a different method, which should work.
+
+[#5]: https://github.com/Genymobile/scrcpy/issues/5
+
+
+### Conflicts between adb versions
+
+>     adb server version (41) doesn't match this client (39); killing...
+
+This error occurs when you use several `adb` versions simultaneously. You must
+find the program using a different `adb` version, and use the same `adb` version
+everywhere.
+
+You could overwrite the `adb` binary in the other program, or ask _scrcpy_ to
+use a specific `adb` binary, by setting the `ADB` environment variable:
+
+```bash
+set ADB=/path/to/your/adb
+scrcpy
+```
+
+
+### Device disconnected
+
+If _scrcpy_ stops itself with the warning "Device disconnected", then the
+`adb` connection has been closed.
+
+Try with another USB cable or plug it into another USB port. See [#281] and
+[#283].
+
+[#281]: https://github.com/Genymobile/scrcpy/issues/281
+[#283]: https://github.com/Genymobile/scrcpy/issues/283
+
+
+
+## Control issues
+
+### Mouse and keyboard do not work
 
 On some devices, you may need to enable an option to allow [simulating input].
+In developer options, enable:
+
+> **USB debugging (Security settings)**  
+> _Allow granting permissions and simulating input via USB debugging_
 
 [simulating input]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
 
 
-### Mouse clicks at wrong location
+### Special characters do not work
 
-On MacOS, with HiDPI support and multiple screens, input location are wrongly
+The default text injection method is [limited to ASCII characters][text-input].
-scaled. See [issue 15].
+A trick allows to also inject some [accented characters][accented-characters],
+but that's all. See [#37].
 
-[issue 15]: https://github.com/Genymobile/scrcpy/issues/15
+Since scrcpy v1.20 on Linux, it is possible to simulate a [physical
+keyboard][hid] (HID).
 
-A workaround is to build with HiDPI support disabled:
+[text-input]: https://github.com/Genymobile/scrcpy/issues?q=is%3Aopen+is%3Aissue+label%3Aunicode
+[accented-characters]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-accented-characters
+[#37]: https://github.com/Genymobile/scrcpy/issues/37
+[hid]: README.md#physical-keyboard-simulation-hid
 
-```bash
+
-meson x --buildtype release -Dhidpi_support=false
+## Client issues
+
+### The quality is low
+
+If the definition of your client window is smaller than that of your device
+screen, then you might get poor quality, especially visible on text (see [#40]).
+
+[#40]: https://github.com/Genymobile/scrcpy/issues/40
+
+To improve downscaling quality, trilinear filtering is enabled automatically
+if the renderer is OpenGL and if it supports mipmapping.
+
+On Windows, you might want to force OpenGL:
+
+```
+scrcpy --render-driver=opengl
 ```
 
-However, the video will be displayed at lower resolution.
+You may also need to configure the [scaling behavior]:
+
+> `scrcpy.exe` > Properties > Compatibility > Change high DPI settings >
+> Override high DPI scaling behavior > Scaling performed by: _Application_.
+
+[scaling behavior]: https://github.com/Genymobile/scrcpy/issues/40#issuecomment-424466723
+
+
+### Issue with Wayland
+
+By default, SDL uses x11 on Linux. The [video driver] can be changed via the
+`SDL_VIDEODRIVER` environment variable:
+
+[video driver]: https://wiki.libsdl.org/FAQUsingSDL#how_do_i_choose_a_specific_video_driver
+
+```bash
+export SDL_VIDEODRIVER=wayland
+scrcpy
+```
+
+On some distributions (at least Fedora), the package `libdecor` must be
+installed manually.
+
+See issues [#2554] and [#2559].
+
+[#2554]: https://github.com/Genymobile/scrcpy/issues/2554
+[#2559]: https://github.com/Genymobile/scrcpy/issues/2559
 
 
 ### KWin compositor crashes
@@ -50,3 +185,83 @@ On Plasma Desktop, compositor is disabled while _scrcpy_ is running.
 As a workaround, [disable "Block compositing"][kwin].
 
 [kwin]: https://github.com/Genymobile/scrcpy/issues/114#issuecomment-378778613
+
+
+## Crashes
+
+### Exception
+
+There may be many reasons. One common cause is that the hardware encoder of your
+device is not able to encode at the given definition:
+
+> ```
+> ERROR: Exception on thread Thread[main,5,main]
+> android.media.MediaCodec$CodecException: Error 0xfffffc0e
+> ...
+> Exit due to uncaughtException in main thread:
+> ERROR: Could not open video stream
+> INFO: Initial texture: 1080x2336
+> ```
+
+or
+
+> ```
+> ERROR: Exception on thread Thread[main,5,main]
+> java.lang.IllegalStateException
+>         at android.media.MediaCodec.native_dequeueOutputBuffer(Native Method)
+> ```
+
+Just try with a lower definition:
+
+```
+scrcpy -m 1920
+scrcpy -m 1024
+scrcpy -m 800
+```
+
+You could also try another [encoder](README.md#encoder).
+
+
+## Command line on Windows
+
+Some Windows users are not familiar with the command line. Here is how to open a
+terminal and run `scrcpy` with arguments:
+
+ 1. Press <kbd>Windows</kbd>+<kbd>r</kbd>, this opens a dialog box.
+ 2. Type `cmd` and press <kbd>Enter</kbd>, this opens a terminal.
+ 3. Go to your _scrcpy_ directory, by typing (adapt the path):
+
+    ```bat
+    cd C:\Users\user\Downloads\scrcpy-win64-xxx
+    ```
+
+    and press <kbd>Enter</kbd>
+ 4. Type your command. For example:
+
+    ```bat
+    scrcpy --record file.mkv
+    ```
+
+If you plan to always use the same arguments, create a file `myscrcpy.bat`
+(enable [show file extensions] to avoid confusion) in the `scrcpy` directory,
+containing your command. For example:
+
+```bat
+scrcpy --prefer-text --turn-screen-off --stay-awake
+```
+
+Then just double-click on that file.
+
+You could also edit (a copy of) `scrcpy-console.bat` or `scrcpy-noconsole.vbs`
+to add some arguments.
+
+[show file extensions]: https://www.howtogeek.com/205086/beginner-how-to-make-windows-show-file-extensions/
+
+
+## Translations
+
+This FAQ is available in other languages:
+
+ - [Italiano (Italiano, `it`) - v1.17](FAQ.it.md)
+ - [한국어 (Korean, `ko`) - v1.11](FAQ.ko.md)
+ - [简体中文 (Simplified Chinese, `zh-Hans`) - v1.18](FAQ.zh-Hans.md)

FAQ.zh-Hans.md

@@ -0,0 +1,240 @@
+只有原版的[FAQ](FAQ.md)会保持更新。
+本文根据[d6aaa5]翻译。
+
+[d6aaa5]:https://github.com/Genymobile/scrcpy/blob/d6aaa5bf9aa3710660c683b6e3e0ed971ee44af5/FAQ.md
+
+# 常见问题
+
+这里是一些常见的问题以及他们的状态。
+
+## `adb` 相关问题
+
+`scrcpy` 执行 `adb` 命令来初始化和设备之间的连接。如果`adb` 执行失败了， scrcpy 就无法工作。
+
+在这种情况中，将会输出这个错误:
+
+>     ERROR: "adb push" returned with value 1
+
+这通常不是 _scrcpy_ 的bug，而是你的环境的问题。
+
+要找出原因，请执行以下操作：
+
+```bash
+adb devices
+```
+
+### 找不到`adb`
+
+
+你的`PATH`中需要能访问到`adb`。
+
+在Windows上，当前目录会包含在`PATH`中，并且`adb.exe`也包含在发行版中，因此它应该是开箱即用（直接解压就可以）的。
+
+
+### 设备未授权
+
+参见这里 [stackoverflow][device-unauthorized].
+
+[device-unauthorized]: https://stackoverflow.com/questions/23081263/adb-android-device-unauthorized
+
+
+### 未检测到设备
+
+>     adb: error: failed to get feature set: no devices/emulators found
+
+确认已经正确启用 [adb debugging][enable-adb].
+
+如果你的设备没有被检测到，你可能需要一些[驱动][drivers] (在 Windows上).
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+[drivers]: https://developer.android.com/studio/run/oem-usb.html
+
+
+### 已连接多个设备
+
+如果连接了多个设备，您将遇到以下错误：
+
+>     adb: error: failed to get feature set: more than one device/emulator
+
+必须提供要镜像的设备的标识符：
+
+```bash
+scrcpy -s 01234567890abcdef
+```
+
+注意，如果你的设备是通过 TCP/IP 连接的， 你将会收到以下消息：
+
+>     adb: error: more than one device/emulator
+>     ERROR: "adb reverse" returned with value 1
+>     WARN: 'adb reverse' failed, fallback to 'adb forward'
+
+这是意料之中的 (由于旧版安卓的一个bug, 请参见 [#5])，但是在这种情况下，scrcpy会退回到另一种方法，这种方法应该可以起作用。
+
+[#5]: https://github.com/Genymobile/scrcpy/issues/5
+
+
+### adb版本之间冲突
+
+>     adb server version (41) doesn't match this client (39); killing...
+
+同时使用多个版本的`adb`时会发生此错误。你必须查找使用不同`adb`版本的程序，并在所有地方使用相同版本的`adb`。
+
+你可以覆盖另一个程序中的`adb`二进制文件，或者通过设置`ADB`环境变量来让 _scrcpy_ 使用特定的`adb`二进制文件。
+
+```bash
+set ADB=/path/to/your/adb
+scrcpy
+```
+
+
+### 设备断开连接
+
+如果 _scrcpy_ 在警告“设备连接断开”的情况下自动中止，那就意味着`adb`连接已经断开了。
+请尝试使用另一条USB线或者电脑上的另一个USB接口。
+请参看 [#281] 和 [#283]。
+
+[#281]: https://github.com/Genymobile/scrcpy/issues/281
+[#283]: https://github.com/Genymobile/scrcpy/issues/283
+
+## 控制相关问题
+
+### 鼠标和键盘不起作用
+
+
+在某些设备上，您可能需要启用一个选项以允许 [模拟输入][simulating input]。
+
+在开发者选项中，打开：
+
+> **USB调试 (安全设置)**  
+> _允许通过USB调试修改权限或模拟点击_
+
+[simulating input]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+### 特殊字符不起作用
+
+可输入的文本[被限制为ASCII字符][text-input]。也可以用一些小技巧输入一些[带重音符号的字符][accented-characters]，但是仅此而已。参见[#37]。
+
+
+[text-input]: https://github.com/Genymobile/scrcpy/issues?q=is%3Aopen+is%3Aissue+label%3Aunicode
+[accented-characters]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-accented-characters
+[#37]: https://github.com/Genymobile/scrcpy/issues/37
+
+
+## 客户端相关问题
+
+### 效果很差
+
+如果你的客户端窗口分辨率比你的设备屏幕小，则可能出现效果差的问题，尤其是在文本上（参见 [#40]）。
+
+[#40]: https://github.com/Genymobile/scrcpy/issues/40
+
+
+为了提升降尺度的质量，如果渲染器是OpenGL并且支持mip映射，就会自动开启三线性过滤。
+
+在Windows上，你可能希望强制使用OpenGL：
+
+```
+scrcpy --render-driver=opengl
+```
+
+你可能还需要配置[缩放行为][scaling behavior]：
+
+> `scrcpy.exe` > Properties > Compatibility > Change high DPI settings >
+> Override high DPI scaling behavior > Scaling performed by: _Application_.
+
+[scaling behavior]: https://github.com/Genymobile/scrcpy/issues/40#issuecomment-424466723
+
+
+### Wayland相关的问题
+
+在Linux上，SDL默认使用x11。可以通过`SDL_VIDEODRIVER`环境变量来更改[视频驱动][video driver]：
+
+[video driver]: https://wiki.libsdl.org/FAQUsingSDL#how_do_i_choose_a_specific_video_driver
+
+```bash
+export SDL_VIDEODRIVER=wayland
+scrcpy
+```
+
+在一些发行版上 (至少包括 Fedora)， `libdecor` 包必须手动安装。
+
+参见 [#2554] 和 [#2559]。
+
+[#2554]: https://github.com/Genymobile/scrcpy/issues/2554
+[#2559]: https://github.com/Genymobile/scrcpy/issues/2559
+
+
+### KWin compositor 崩溃
+
+在Plasma桌面中，当 _scrcpy_ 运行时，会禁用compositor。
+
+一种解决方法是， [禁用 "Block compositing"][kwin].
+
+[kwin]: https://github.com/Genymobile/scrcpy/issues/114#issuecomment-378778613
+
+
+## 崩溃
+
+### 异常
+可能有很多原因。一个常见的原因是您的设备无法按给定清晰度进行编码：
+
+> ```
+> ERROR: Exception on thread Thread[main,5,main]
+> android.media.MediaCodec$CodecException: Error 0xfffffc0e
+> ...
+> Exit due to uncaughtException in main thread:
+> ERROR: Could not open video stream
+> INFO: Initial texture: 1080x2336
+> ```
+
+或者
+
+> ```
+> ERROR: Exception on thread Thread[main,5,main]
+> java.lang.IllegalStateException
+>         at android.media.MediaCodec.native_dequeueOutputBuffer(Native Method)
+> ```
+
+请尝试使用更低的清晰度：
+
+```
+scrcpy -m 1920
+scrcpy -m 1024
+scrcpy -m 800
+```
+
+你也可以尝试另一种 [编码器](README.md#encoder)。
+
+
+## Windows命令行
+
+一些Windows用户不熟悉命令行。以下是如何打开终端并带参数执行`scrcpy`：
+
+ 1. 按下 <kbd>Windows</kbd>+<kbd>r</kbd>，打开一个对话框。
+ 2. 输入 `cmd` 并按 <kbd>Enter</kbd>，这样就打开了一个终端。
+ 3. 通过输入以下命令，切换到你的 _scrcpy_ 所在的目录 （根据你的实际位置修改路径）:
+
+    ```bat
+    cd C:\Users\user\Downloads\scrcpy-win64-xxx
+    ```
+
+    然后按 <kbd>Enter</kbd>
+ 4. 输入你的命令。比如:
+
+    ```bat
+    scrcpy --record file.mkv
+    ```
+
+如果你打算总是使用相同的参数，在`scrcpy`目录创建一个文件 `myscrcpy.bat`
+（启用 [显示文件拓展名][show file extensions] 避免混淆），文件中包含你的命令。例如：
+
+```bat
+scrcpy --prefer-text --turn-screen-off --stay-awake
+```
+
+然后双击刚刚创建的文件。
+
+你也可以编辑 `scrcpy-console.bat` 或者 `scrcpy-noconsole.vbs`（的副本）来添加参数。
+
+[show file extensions]: https://www.howtogeek.com/205086/beginner-how-to-make-windows-show-file-extensions/

LICENSE

@@ -188,7 +188,7 @@
       identification within third-party archives.
 
    Copyright (C) 2018 Genymobile
-   Copyright (C) 2018-2019 Romain Vimont
+   Copyright (C) 2018-2021 Romain Vimont
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

Makefile.CrossWindows

@@ -1,137 +0,0 @@
-# This makefile provides recipes to build a "portable" version of scrcpy for
-# Windows.
-#
-# Here, "portable" means that the client and server binaries are expected to be
-# anywhere, but in the same directory, instead of well-defined separate
-# locations (e.g. /usr/bin/scrcpy and /usr/share/scrcpy/scrcpy-server.jar).
-#
-# In particular, this implies to change the location from where the client push
-# the server to the device.
-
-.PHONY: default clean \
-	build-server \
-	prepare-deps-win32 prepare-deps-win64 \
-	build-win32 build-win32-noconsole \
-	build-win64 build-win64-noconsole \
-	dist-win32 dist-win64 \
-	zip-win32 zip-win64 \
-	sums release
-
-GRADLE ?= ./gradlew
-
-SERVER_BUILD_DIR := build-server
-WIN32_BUILD_DIR := build-win32
-WIN32_NOCONSOLE_BUILD_DIR := build-win32-noconsole
-WIN64_BUILD_DIR := build-win64
-WIN64_NOCONSOLE_BUILD_DIR := build-win64-noconsole
-
-DIST := dist
-WIN32_TARGET_DIR := scrcpy-win32
-WIN64_TARGET_DIR := scrcpy-win64
-
-VERSION := $(shell git describe --tags --always)
-WIN32_TARGET := $(WIN32_TARGET_DIR)-$(VERSION).zip
-WIN64_TARGET := $(WIN64_TARGET_DIR)-$(VERSION).zip
-
-release: clean zip-win32 zip-win64 sums
-	@echo "Windows archives generated in $(DIST)/"
-
-clean:
-	$(GRADLE) clean
-	rm -rf "$(SERVER_BUILD_DIR)" "$(WIN32_BUILD_DIR)" "$(WIN64_BUILD_DIR)" \
-		   "$(WIN32_NOCONSOLE_BUILD_DIR)" "$(WIN64_NOCONSOLE_BUILD_DIR)" "$(DIST)"
-
-build-server:
-	[ -d "$(SERVER_BUILD_DIR)" ] || ( mkdir "$(SERVER_BUILD_DIR)" && \
-		meson "$(SERVER_BUILD_DIR)" \
-			--buildtype release -Dcompile_app=false )
-		ninja -C "$(SERVER_BUILD_DIR)"
-
-prepare-deps-win32:
-	-$(MAKE) -C prebuilt-deps prepare-win32
-
-build-win32: prepare-deps-win32
-	[ -d "$(WIN32_BUILD_DIR)" ] || ( mkdir "$(WIN32_BUILD_DIR)" && \
-		meson "$(WIN32_BUILD_DIR)" \
-			--cross-file cross_win32.txt \
-			--buildtype release --strip -Db_lto=true \
-			-Dcrossbuild_windows=true \
-			-Dcompile_server=false \
-			-Dportable=true )
-	ninja -C "$(WIN32_BUILD_DIR)"
-
-build-win32-noconsole: prepare-deps-win32
-	[ -d "$(WIN32_NOCONSOLE_BUILD_DIR)" ] || ( mkdir "$(WIN32_NOCONSOLE_BUILD_DIR)" && \
-		meson "$(WIN32_NOCONSOLE_BUILD_DIR)" \
-			--cross-file cross_win32.txt \
-			--buildtype release --strip -Db_lto=true \
-			-Dcrossbuild_windows=true \
-			-Dcompile_server=false \
-			-Dwindows_noconsole=true \
-			-Dportable=true )
-	ninja -C "$(WIN32_NOCONSOLE_BUILD_DIR)"
-
-prepare-deps-win64:
-	-$(MAKE) -C prebuilt-deps prepare-win64
-
-build-win64: prepare-deps-win64
-	[ -d "$(WIN64_BUILD_DIR)" ] || ( mkdir "$(WIN64_BUILD_DIR)" && \
-		meson "$(WIN64_BUILD_DIR)" \
-			--cross-file cross_win64.txt \
-			--buildtype release --strip -Db_lto=true \
-			-Dcrossbuild_windows=true \
-			-Dcompile_server=false \
-			-Dportable=true )
-	ninja -C "$(WIN64_BUILD_DIR)"
-
-build-win64-noconsole: prepare-deps-win64
-	[ -d "$(WIN64_NOCONSOLE_BUILD_DIR)" ] || ( mkdir "$(WIN64_NOCONSOLE_BUILD_DIR)" && \
-		meson "$(WIN64_NOCONSOLE_BUILD_DIR)" \
-			--cross-file cross_win64.txt \
-			--buildtype release --strip -Db_lto=true \
-			-Dcrossbuild_windows=true \
-			-Dcompile_server=false \
-			-Dwindows_noconsole=true \
-			-Dportable=true )
-	ninja -C "$(WIN64_NOCONSOLE_BUILD_DIR)"
-
-dist-win32: build-server build-win32 build-win32-noconsole
-	mkdir -p "$(DIST)/$(WIN32_TARGET_DIR)"
-	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server.jar "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp "$(WIN32_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp "$(WIN32_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/scrcpy-noconsole.exe"
-	cp prebuilt-deps/ffmpeg-4.1.3-win32-shared/bin/avutil-56.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.3-win32-shared/bin/avcodec-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.3-win32-shared/bin/avformat-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.3-win32-shared/bin/swresample-3.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.8/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-
-dist-win64: build-server build-win64 build-win64-noconsole
-	mkdir -p "$(DIST)/$(WIN64_TARGET_DIR)"
-	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server.jar "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp "$(WIN64_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp "$(WIN64_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/scrcpy-noconsole.exe"
-	cp prebuilt-deps/ffmpeg-4.1.3-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.3-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.3-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.3-win64-shared/bin/swresample-3.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.3-win64-shared/bin/swscale-5.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.8/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-
-zip-win32: dist-win32
-	cd "$(DIST)"; \
-		zip -r "$(WIN32_TARGET)" "$(WIN32_TARGET_DIR)"
-
-zip-win64: dist-win64
-	cd "$(DIST)"; \
-		zip -r "$(WIN64_TARGET)" "$(WIN64_TARGET_DIR)"
-
-sums:
-	cd "$(DIST)"; \
-		sha256sum *.zip > SHA256SUMS.txt

README.id.md

@@ -0,0 +1,696 @@
+_Only the original [README](README.md) is guaranteed to be up-to-date._
+
+# scrcpy (v1.16)
+
+Aplikasi ini menyediakan tampilan dan kontrol perangkat Android yang terhubung pada USB (atau [melalui TCP/IP][article-tcpip]). Ini tidak membutuhkan akses _root_ apa pun. Ini bekerja pada _GNU/Linux_, _Windows_ and _macOS_.
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+Ini berfokus pada:
+
+  - **keringanan** (asli, hanya menampilkan layar perangkat)
+  - **kinerja** (30~60fps)
+  - **kualitas** (1920×1080 atau lebih)
+  - **latensi** rendah ([35~70ms][lowlatency])
+  - **waktu startup rendah** (~1 detik untuk menampilkan gambar pertama)
+  - **tidak mengganggu** (tidak ada yang terpasang di perangkat)
+
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## Persyaratan
+Perangkat Android membutuhkan setidaknya API 21 (Android 5.0).
+
+Pastikan Anda [mengaktifkan debugging adb][enable-adb] pada perangkat Anda.
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+Di beberapa perangkat, Anda juga perlu mengaktifkan [opsi tambahan][control] untuk mengontrolnya menggunakan keyboard dan mouse.
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## Dapatkan aplikasinya
+
+### Linux
+
+Di Debian (_testing_ dan _sid_ untuk saat ini) dan Ubuntu (20.04):
+
+```
+apt install scrcpy
+```
+
+Paket [Snap] tersedia: [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+Untuk Fedora, paket [COPR] tersedia: [`scrcpy`][copr-link].
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+Untuk Arch Linux, paket [AUR] tersedia: [`scrcpy`][aur-link].
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+Untuk Gentoo, tersedia [Ebuild]: [`scrcpy/`][ebuild-link].
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+Anda juga bisa [membangun aplikasi secara manual][BUILD] (jangan khawatir, tidak terlalu sulit).
+
+
+### Windows
+
+Untuk Windows, untuk kesederhanaan, arsip prebuilt dengan semua dependensi (termasuk `adb`) tersedia :
+
+ - [README](README.md#windows)
+
+Ini juga tersedia di [Chocolatey]:
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # jika Anda belum memilikinya
+```
+
+Dan di [Scoop]:
+
+```bash
+scoop install scrcpy
+scoop install adb    # jika Anda belum memilikinya
+```
+
+[Scoop]: https://scoop.sh
+
+Anda juga dapat [membangun aplikasi secara manual][BUILD].
+
+
+### macOS
+
+Aplikasi ini tersedia di [Homebrew]. Instal saja:
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+Anda membutuhkan `adb`, dapat diakses dari `PATH` Anda. Jika Anda belum memilikinya:
+
+```bash
+brew cask install android-platform-tools
+```
+
+Anda juga dapat [membangun aplikasi secara manual][BUILD].
+
+
+## Menjalankan
+
+Pasang perangkat Android, dan jalankan:
+
+```bash
+scrcpy
+```
+
+Ini menerima argumen baris perintah, didaftarkan oleh:
+
+```bash
+scrcpy --help
+```
+
+## Fitur
+
+### Menangkap konfigurasi
+
+#### Mengurangi ukuran
+
+Kadang-kadang, berguna untuk mencerminkan perangkat Android dengan definisi yang lebih rendah untuk meningkatkan kinerja.
+
+Untuk membatasi lebar dan tinggi ke beberapa nilai (mis. 1024):
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # versi pendek
+```
+
+Dimensi lain dihitung agar rasio aspek perangkat dipertahankan.
+Dengan begitu, perangkat 1920×1080 akan dicerminkan pada 1024×576.
+
+#### Ubah kecepatan bit
+
+Kecepatan bit default adalah 8 Mbps. Untuk mengubah bitrate video (mis. Menjadi 2 Mbps):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # versi pendek
+```
+
+#### Batasi frekuensi gambar
+
+Kecepatan bingkai pengambilan dapat dibatasi:
+
+```bash
+scrcpy --max-fps 15
+```
+
+Ini secara resmi didukung sejak Android 10, tetapi dapat berfungsi pada versi sebelumnya.
+
+#### Memotong
+
+Layar perangkat dapat dipotong untuk mencerminkan hanya sebagian dari layar.
+
+Ini berguna misalnya untuk mencerminkan hanya satu mata dari Oculus Go:
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 1224x1440 Mengimbangi (0,0)
+```
+
+Jika `--max-size` juga ditentukan, pengubahan ukuran diterapkan setelah pemotongan.
+
+
+#### Kunci orientasi video
+
+Untuk mengunci orientasi pencerminan:
+
+```bash
+scrcpy --lock-video-orientation 0   # orientasi alami
+scrcpy --lock-video-orientation 1   # 90° berlawanan arah jarum jam
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 90° searah jarum jam
+```
+
+Ini mempengaruhi orientasi perekaman.
+
+
+### Rekaman
+
+Anda dapat merekam layar saat melakukan mirroring:
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+Untuk menonaktifkan pencerminan saat merekam:
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# berhenti merekam dengan Ctrl+C
+```
+
+"Skipped frames" are recorded, even if they are not displayed in real time (for
+performance reasons). Frames are _timestamped_ on the device, so [packet delay
+variation] does not impact the recorded file.
+
+"Frame yang dilewati" direkam, meskipun tidak ditampilkan secara real time (untuk alasan performa). Bingkai *diberi stempel waktu* pada perangkat, jadi [variasi penundaan paket] tidak memengaruhi file yang direkam.
+
+[variasi penundaan paket]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+### Koneksi
+
+#### Wireless
+
+_Scrcpy_ menggunakan `adb` untuk berkomunikasi dengan perangkat, dan` adb` dapat [terhubung] ke perangkat melalui TCP / IP:
+
+1. Hubungkan perangkat ke Wi-Fi yang sama dengan komputer Anda.
+2. Dapatkan alamat IP perangkat Anda (dalam Pengaturan → Tentang ponsel → Status).
+3. Aktifkan adb melalui TCP / IP pada perangkat Anda: `adb tcpip 5555`.
+4. Cabut perangkat Anda.
+5. Hubungkan ke perangkat Anda: `adb connect DEVICE_IP: 5555` (*ganti* *`DEVICE_IP`*).
+6. Jalankan `scrcpy` seperti biasa.
+
+Mungkin berguna untuk menurunkan kecepatan bit dan definisi:
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # versi pendek
+```
+
+[terhubung]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+#### Multi-perangkat
+
+Jika beberapa perangkat dicantumkan di `adb devices`, Anda harus menentukan _serial_:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # versi pendek
+```
+
+If the device is connected over TCP/IP:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # versi pendek
+```
+
+Anda dapat memulai beberapa contoh _scrcpy_ untuk beberapa perangkat.
+
+#### Mulai otomatis pada koneksi perangkat
+
+Anda bisa menggunakan [AutoAdb]:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### Koneksi via SSH tunnel
+
+Untuk menyambung ke perangkat jarak jauh, dimungkinkan untuk menghubungkan klien `adb` lokal ke server `adb` jarak jauh (asalkan mereka menggunakan versi yang sama dari _adb_ protocol):
+
+```bash
+adb kill-server    # matikan server adb lokal di 5037
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 komputer_jarak_jauh_anda
+# jaga agar tetap terbuka
+```
+
+Dari terminal lain:
+
+```bash
+scrcpy
+```
+
+Untuk menghindari mengaktifkan penerusan port jarak jauh, Anda dapat memaksa sambungan maju sebagai gantinya (perhatikan `-L`, bukan` -R`):
+
+```bash
+adb kill-server    # matikan server adb lokal di 5037
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 komputer_jarak_jauh_anda
+# jaga agar tetap terbuka
+```
+
+Dari terminal lain:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+Seperti koneksi nirkabel, mungkin berguna untuk mengurangi kualitas:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### Konfigurasi Jendela
+
+#### Judul
+
+Secara default, judul jendela adalah model perangkat. Itu bisa diubah:
+
+```bash
+scrcpy --window-title 'Perangkat Saya'
+```
+
+#### Posisi dan ukuran
+
+Posisi dan ukuran jendela awal dapat ditentukan:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### Jendela tanpa batas
+
+Untuk menonaktifkan dekorasi jendela:
+
+```bash
+scrcpy --window-borderless
+```
+
+#### Selalu di atas
+
+Untuk menjaga jendela scrcpy selalu di atas:
+
+```bash
+scrcpy --always-on-top
+```
+
+#### Layar penuh
+
+Aplikasi dapat dimulai langsung dalam layar penuh::
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # versi pendek
+```
+
+Layar penuh kemudian dapat diubah secara dinamis dengan <kbd>MOD</kbd>+<kbd>f</kbd>.
+
+#### Rotasi
+
+Jendela mungkin diputar:
+
+```bash
+scrcpy --rotation 1
+```
+
+Nilai yang mungkin adalah:
+ - `0`: tidak ada rotasi
+ - `1`: 90 derajat berlawanan arah jarum jam
+ - `2`: 180 derajat
+ - `3`: 90 derajat searah jarum jam
+
+Rotasi juga dapat diubah secara dinamis dengan <kbd>MOD</kbd>+<kbd>←</kbd>
+_(kiri)_ and <kbd>MOD</kbd>+<kbd>→</kbd> _(kanan)_.
+
+Perhatikan bahwa _scrcpy_ mengelola 3 rotasi berbeda::
+ - <kbd>MOD</kbd>+<kbd>r</kbd> meminta perangkat untuk beralih antara potret dan lanskap (aplikasi yang berjalan saat ini mungkin menolak, jika mendukung orientasi yang diminta).
+ - `--lock-video-orientation` mengubah orientasi pencerminan (orientasi video yang dikirim dari perangkat ke komputer). Ini mempengaruhi rekaman.
+ - `--rotation` (atau <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>)
+   memutar hanya konten jendela. Ini hanya mempengaruhi tampilan, bukan rekaman.
+
+
+### Opsi pencerminan lainnya
+
+#### Hanya-baca
+
+Untuk menonaktifkan kontrol (semua yang dapat berinteraksi dengan perangkat: tombol input, peristiwa mouse, seret & lepas file):
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+#### Layar
+
+Jika beberapa tampilan tersedia, Anda dapat memilih tampilan untuk cermin:
+
+```bash
+scrcpy --display 1
+```
+
+Daftar id tampilan dapat diambil dengan::
+
+```
+adb shell dumpsys display   # cari "mDisplayId=" di keluaran
+```
+
+Tampilan sekunder hanya dapat dikontrol jika perangkat menjalankan setidaknya Android 10 (jika tidak maka akan dicerminkan dalam hanya-baca).
+
+
+#### Tetap terjaga
+
+Untuk mencegah perangkat tidur setelah beberapa penundaan saat perangkat dicolokkan:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+Keadaan awal dipulihkan ketika scrcpy ditutup.
+
+
+#### Matikan layar
+
+Dimungkinkan untuk mematikan layar perangkat saat pencerminan mulai dengan opsi baris perintah:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+Atau dengan menekan <kbd>MOD</kbd>+<kbd>o</kbd> kapan saja.
+
+Untuk menyalakannya kembali, tekan <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
+
+Di Android, tombol `POWER` selalu menyalakan layar. Untuk kenyamanan, jika `POWER` dikirim melalui scrcpy (melalui klik kanan atau<kbd>MOD</kbd>+<kbd>p</kbd>), itu akan memaksa untuk mematikan layar setelah penundaan kecil (atas dasar upaya terbaik).
+Tombol fisik `POWER` masih akan menyebabkan layar dihidupkan.
+
+Ini juga berguna untuk mencegah perangkat tidur:
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+#### Render frame kedaluwarsa
+
+Secara default, untuk meminimalkan latensi, _scrcpy_ selalu menampilkan frame yang terakhir didekodekan tersedia, dan menghapus frame sebelumnya.
+
+Untuk memaksa rendering semua frame (dengan kemungkinan peningkatan latensi), gunakan:
+
+```bash
+scrcpy --render-expired-frames
+```
+
+#### Tunjukkan sentuhan
+
+Untuk presentasi, mungkin berguna untuk menunjukkan sentuhan fisik (pada perangkat fisik).
+
+Android menyediakan fitur ini di _Opsi Pengembang_.
+
+_Scrcpy_ menyediakan opsi untuk mengaktifkan fitur ini saat mulai dan mengembalikan nilai awal saat keluar:
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+Perhatikan bahwa ini hanya menunjukkan sentuhan _fisik_ (dengan jari di perangkat).
+
+
+#### Nonaktifkan screensaver
+
+Secara default, scrcpy tidak mencegah screensaver berjalan di komputer.
+
+Untuk menonaktifkannya:
+
+```bash
+scrcpy --disable-screensaver
+```
+
+
+### Kontrol masukan
+
+#### Putar layar perangkat
+
+Tekan <kbd>MOD</kbd>+<kbd>r</kbd> untuk beralih antara mode potret dan lanskap.
+
+Perhatikan bahwa itu berputar hanya jika aplikasi di latar depan mendukung orientasi yang diminta.
+
+#### Salin-tempel
+
+Setiap kali papan klip Android berubah, secara otomatis disinkronkan ke papan klip komputer.
+
+Apa saja <kbd>Ctrl</kbd> pintasan diteruskan ke perangkat. Khususnya:
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> biasanya salinan
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> biasanya memotong
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> biasanya menempel (setelah sinkronisasi papan klip komputer-ke-perangkat)
+
+Ini biasanya berfungsi seperti yang Anda harapkan.
+
+Perilaku sebenarnya tergantung pada aplikasi yang aktif. Sebagai contoh,
+_Termux_ mengirim SIGINT ke <kbd>Ctrl</kbd>+<kbd>c</kbd> sebagai gantinya, dan _K-9 Mail_ membuat pesan baru.
+
+Untuk menyalin, memotong dan menempel dalam kasus seperti itu (tetapi hanya didukung di Android> = 7):
+ - <kbd>MOD</kbd>+<kbd>c</kbd> injeksi `COPY` _(salin)_
+ - <kbd>MOD</kbd>+<kbd>x</kbd> injeksi `CUT` _(potong)_
+ - <kbd>MOD</kbd>+<kbd>v</kbd> injeksi `PASTE` (setelah sinkronisasi papan klip komputer-ke-perangkat)
+
+Tambahan, <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> memungkinkan untuk memasukkan teks papan klip komputer sebagai urutan peristiwa penting. Ini berguna ketika komponen tidak menerima penempelan teks (misalnya di _Termux_), tetapi dapat merusak konten non-ASCII.
+
+**PERINGATAN:** Menempelkan papan klip komputer ke perangkat (baik melalui
+<kbd>Ctrl</kbd>+<kbd>v</kbd> or <kbd>MOD</kbd>+<kbd>v</kbd>) menyalin konten ke clipboard perangkat. Akibatnya, aplikasi Android apa pun dapat membaca kontennya. Anda harus menghindari menempelkan konten sensitif (seperti kata sandi) seperti itu.
+
+
+#### Cubit untuk memperbesar/memperkecil
+
+Untuk mensimulasikan "cubit-untuk-memperbesar/memperkecil": <kbd>Ctrl</kbd>+_klik-dan-pindah_.
+
+Lebih tepatnya, tahan <kbd>Ctrl</kbd> sambil menekan tombol klik kiri. Hingga tombol klik kiri dilepaskan, semua gerakan mouse berskala dan memutar konten (jika didukung oleh aplikasi) relatif ke tengah layar.
+
+Secara konkret, scrcpy menghasilkan kejadian sentuh tambahan dari "jari virtual" di lokasi yang dibalik melalui bagian tengah layar.
+
+
+#### Preferensi injeksi teks
+
+Ada dua jenis [peristiwa][textevents] dihasilkan saat mengetik teks:
+- _peristiwa penting_, menandakan bahwa tombol ditekan atau dilepaskan;
+- _peristiwa teks_, menandakan bahwa teks telah dimasukkan.
+
+Secara default, huruf dimasukkan menggunakan peristiwa kunci, sehingga keyboard berperilaku seperti yang diharapkan dalam game (biasanya untuk tombol WASD).
+
+Tapi ini mungkin [menyebabkan masalah][prefertext]. Jika Anda mengalami masalah seperti itu, Anda dapat menghindarinya dengan:
+
+```bash
+scrcpy --prefer-text
+```
+
+(tapi ini akan merusak perilaku keyboard dalam game)
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### Ulangi kunci
+
+Secara default, menahan tombol akan menghasilkan peristiwa kunci yang berulang. Ini dapat menyebabkan masalah kinerja di beberapa game, di mana acara ini tidak berguna.
+
+Untuk menghindari penerusan peristiwa penting yang berulang:
+
+```bash
+scrcpy --no-key-repeat
+```
+
+
+### Seret/jatuhkan file
+
+#### Pasang APK
+
+Untuk menginstal APK, seret & lepas file APK (diakhiri dengan `.apk`) ke jendela _scrcpy_.
+
+Tidak ada umpan balik visual, log dicetak ke konsol.
+
+
+#### Dorong file ke perangkat
+
+Untuk mendorong file ke `/sdcard/` di perangkat, seret & jatuhkan file (non-APK) ke jendela _scrcpy_.
+
+Tidak ada umpan balik visual, log dicetak ke konsol.
+
+Direktori target dapat diubah saat mulai:
+
+```bash
+scrcpy --push-target /sdcard/foo/bar/
+```
+
+
+### Penerusan audio
+
+Audio tidak diteruskan oleh _scrcpy_. Gunakan [sndcpy].
+
+Lihat juga [Masalah #14].
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[Masalah #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+
+## Pintasan
+
+Dalam daftar berikut, <kbd>MOD</kbd> adalah pengubah pintasan. Secara default, ini (kiri) <kbd>Alt</kbd> atau (kiri) <kbd>Super</kbd>.
+
+Ini dapat diubah menggunakan `--shortcut-mod`. Kunci yang memungkinkan adalah `lctrl`,`rctrl`, `lalt`,` ralt`, `lsuper` dan` rsuper`. Sebagai contoh:
+
+```bash
+# gunakan RCtrl untuk jalan pintas
+scrcpy --shortcut-mod=rctrl
+
+# gunakan baik LCtrl+LAlt atau LSuper untuk jalan pintas
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_<kbd>[Super]</kbd> biasanya adalah <kbd>Windows</kbd> atau <kbd>Cmd</kbd> key._
+
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
+ | Aksi                                                  |   Pintasan
+ | ------------------------------------------------------|:-----------------------------
+ | Alihkan mode layar penuh                              | <kbd>MOD</kbd>+<kbd>f</kbd>
+ | Putar layar kiri                                      | <kbd>MOD</kbd>+<kbd>←</kbd> _(kiri)_
+ | Putar layar kanan                                     | <kbd>MOD</kbd>+<kbd>→</kbd> _(kanan)_
+ | Ubah ukuran jendela menjadi 1:1 (piksel-sempurna)     | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | Ubah ukuran jendela menjadi hapus batas hitam         | <kbd>MOD</kbd>+<kbd>w</kbd> \| _klik-dua-kali¹_
+ | Klik `HOME`                                           | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Klik-tengah_
+ | Klik `BACK`                                           | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Klik-kanan²_
+ | Klik `APP_SWITCH`                                     | <kbd>MOD</kbd>+<kbd>s</kbd>
+ | Klik `MENU` (buka kunci layar)                        | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | Klik `VOLUME_UP`                                      | <kbd>MOD</kbd>+<kbd>↑</kbd> _(naik)_
+ | Klik `VOLUME_DOWN`                                    | <kbd>MOD</kbd>+<kbd>↓</kbd> _(turun)_
+ | Klik `POWER`                                          | <kbd>MOD</kbd>+<kbd>p</kbd>
+ | Menyalakan                                            | _Klik-kanan²_
+ | Matikan layar perangkat (tetap mirroring)             | <kbd>MOD</kbd>+<kbd>o</kbd>
+ | Hidupkan layar perangkat                              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
+ | Putar layar perangkat                                 | <kbd>MOD</kbd>+<kbd>r</kbd>
+ | Luaskan panel notifikasi                              | <kbd>MOD</kbd>+<kbd>n</kbd>
+ | Ciutkan panel notifikasi                              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | Menyalin ke papan klip³                               | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | Potong ke papan klip³                                 | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | Sinkronkan papan klip dan tempel³                     | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | Masukkan teks papan klip komputer                     | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
+ | Mengaktifkan/menonaktifkan penghitung FPS (di stdout) | <kbd>MOD</kbd>+<kbd>i</kbd>
+ | Cubit-untuk-memperbesar/memperkecil                   | <kbd>Ctrl</kbd>+_klik-dan-pindah_
+
+_¹Klik-dua-kali pada batas hitam untuk menghapusnya._  
+_²Klik-kanan akan menghidupkan layar jika mati, tekan BACK jika tidak._  
+_³Hanya di Android >= 7._
+
+Semua <kbd>Ctrl</kbd>+_key_ pintasan diteruskan ke perangkat, demikian adanya
+ditangani oleh aplikasi aktif.
+
+
+## Jalur kustom
+
+Untuk menggunakan biner _adb_ tertentu, konfigurasikan jalurnya di variabel lingkungan `ADB`:
+
+    ADB=/path/to/adb scrcpy
+
+Untuk mengganti jalur file `scrcpy-server`, konfigurasikan jalurnya di
+`SCRCPY_SERVER_PATH`.
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+
+## Mengapa _scrcpy_?
+
+Seorang kolega menantang saya untuk menemukan nama yang tidak dapat diucapkan seperti [gnirehtet].
+
+[`strcpy`] menyalin sebuah **str**ing; `scrcpy` menyalin sebuah **scr**een.
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+## Bagaimana Cara membangun?
+
+Lihat [BUILD].
+
+[BUILD]: BUILD.md
+
+
+## Masalah umum
+
+Lihat [FAQ](FAQ.md).
+
+
+## Pengembang
+
+Baca [halaman pengembang].
+
+[halaman pengembang]: DEVELOP.md
+
+
+## Lisensi
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## Artikel
+
+- [Introducing scrcpy][article-intro]
+- [Scrcpy now works wirelessly][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/
+

README.it.md

@@ -0,0 +1,742 @@
+_Apri il [README](README.md) originale e sempre aggiornato._
+
+# scrcpy (v1.17)
+
+Questa applicazione fornisce la visualizzazione e il controllo dei dispositivi Android collegati via USB (o [via TCP/IP][article-tcpip]). Non richiede alcun accesso _root_.
+Funziona su _GNU/Linux_, _Windows_ e _macOS_.
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+Si concentra su:
+
+ - **leggerezza** (nativo, mostra solo lo schermo del dispositivo)
+ - **prestazioni** (30~60fps)
+ - **qualità** (1920×1080 o superiore)
+ - **bassa latenza** ([35~70ms][lowlatency])
+ - **tempo di avvio basso** (~ 1secondo per visualizzare la prima immagine)
+ - **non invadenza** (nulla viene lasciato installato sul dispositivo)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## Requisiti
+
+Il dispositivo Android richiede almeno le API 21 (Android 5.0).
+
+Assiucurati di aver [attivato il debug usb][enable-adb] sul(/i) tuo(i) dispositivo(/i).
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+In alcuni dispositivi, devi anche abilitare [un'opzione aggiuntiva][control] per controllarli con tastiera e mouse.
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+## Ottieni l'app
+
+<a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
+
+### Sommario
+
+ - Linux: `apt install scrcpy`
+ - Windows: [download](README.md#windows)
+ - macOS: `brew install scrcpy`
+
+Compila dai sorgenti: [BUILD] (in inglese) ([procedimento semplificato][BUILD_simple] (in inglese))
+
+[BUILD]: BUILD.md
+[BUILD_simple]: BUILD.md#simple
+
+
+### Linux
+
+Su Debian (_testing_ e _sid_ per ora) e Ubuntu (20.04):
+
+```
+apt install scrcpy
+```
+
+È disponibile anche un pacchetto [Snap]: [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://it.wikipedia.org/wiki/Snappy_(gestore_pacchetti)
+
+Per Fedora, è disponibile un pacchetto [COPR]: [`scrcpy`][copr-link].
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+Per Arch Linux, è disponibile un pacchetto [AUR]: [`scrcpy`][aur-link].
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+Per Gentoo, è disponibile una [Ebuild]: [`scrcpy/`][ebuild-link].
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+Puoi anche [compilare l'app manualmente][BUILD] (in inglese) ([procedimento semplificato][BUILD_simple] (in inglese)).
+
+
+### Windows
+
+Per Windows, per semplicità è disponibile un archivio precompilato con tutte le dipendenze (incluso `adb`):
+
+ - [README](README.md#windows) (Link al README originale per l'ultima versione)
+
+È anche disponibile in [Chocolatey]:
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # se non lo hai già
+```
+
+E in [Scoop]:
+
+```bash
+scoop install scrcpy
+scoop install adb    # se non lo hai già
+```
+
+[Scoop]: https://scoop.sh
+
+Puoi anche [compilare l'app manualmente][BUILD] (in inglese).
+
+
+### macOS
+
+L'applicazione è disponibile in [Homebrew]. Basta installarlo:
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+Serve che `adb` sia accessibile dal tuo `PATH`. Se non lo hai già:
+
+```bash
+brew install android-platform-tools
+```
+
+È anche disponibile in [MacPorts], che imposta adb per te:
+
+```bash
+sudo port install scrcpy
+```
+
+[MacPorts]: https://www.macports.org/
+
+
+Puoi anche [compilare l'app manualmente][BUILD] (in inglese).
+
+
+## Esecuzione
+
+Collega un dispositivo Android ed esegui:
+
+```bash
+scrcpy
+```
+
+Scrcpy accetta argomenti da riga di comando, essi sono listati con:
+
+```bash
+scrcpy --help
+```
+
+## Funzionalità
+
+### Configurazione di acquisizione
+
+#### Riduci dimensione
+
+Qualche volta è utile trasmettere un dispositvo Android ad una definizione inferiore per aumentare le prestazioni.
+
+Per limitare sia larghezza che altezza ad un certo valore (ad es. 1024):
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # versione breve
+```
+
+L'altra dimensione è calcolata in modo tale che il rapporto di forma del dispositivo sia preservato.
+In questo esempio un dispositivo in 1920x1080 viene trasmesso a 1024x576.
+
+
+#### Cambia bit-rate (velocità di trasmissione)
+
+Il bit-rate predefinito è 8 Mbps. Per cambiare il bitrate video (ad es. a 2 Mbps):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # versione breve
+```
+
+#### Limitare il frame rate (frequenza di fotogrammi)
+
+Il frame rate di acquisizione può essere limitato:
+
+```bash
+scrcpy --max-fps 15
+```
+
+Questo è supportato ufficialmente a partire da Android 10, ma potrebbe funzionare in versioni precedenti.
+
+#### Ritaglio
+
+Lo schermo del dispositivo può essere ritagliato per visualizzare solo parte di esso.
+
+Questo può essere utile, per esempio, per trasmettere solo un occhio dell'Oculus Go:
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 1224x1440 at offset (0,0)
+```
+
+Se anche `--max-size` è specificata, il ridimensionamento è applicato dopo il ritaglio.
+
+
+#### Blocca orientamento del video
+
+
+Per bloccare l'orientamento della trasmissione:
+
+```bash
+scrcpy --lock-video-orientation 0   # orientamento naturale
+scrcpy --lock-video-orientation 1   # 90° antiorario
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 90° orario
+```
+
+Questo influisce sull'orientamento della registrazione.
+
+
+La [finestra può anche essere ruotata](#rotazione) indipendentemente.
+
+
+#### Codificatore
+
+Alcuni dispositivi hanno più di un codificatore e alcuni di questi possono provocare problemi o crash. È possibile selezionare un encoder diverso:
+
+```bash
+scrcpy --encoder OMX.qcom.video.encoder.avc
+```
+
+Per elencare i codificatori disponibili puoi immettere un nome di codificatore non valido e l'errore mostrerà i codificatori disponibili:
+
+```bash
+scrcpy --encoder _
+```
+
+### Registrazione
+
+È possibile registrare lo schermo durante la trasmissione:
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+Per disabilitare la trasmissione durante la registrazione:
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# interrompere la registrazione con Ctrl+C
+```
+
+I "fotogrammi saltati" sono registrati nonostante non siano mostrati in tempo reale (per motivi di prestazioni). I fotogrammi sono _datati_ sul dispositivo, così una [variazione di latenza dei pacchetti][packet delay variation] non impatta il file registrato.
+
+[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+### Connessione
+
+#### Wireless
+
+
+_Scrcpy_ usa `adb` per comunicare col dispositivo e `adb` può [connettersi][connect] al dispositivo mediante TCP/IP:
+
+1. Connetti il dispositivo alla stessa rete Wi-Fi del tuo computer.
+2. Trova l'indirizzo IP del tuo dispositivo in Impostazioni → Informazioni sul telefono → Stato, oppure   eseguendo questo comando:
+
+    ```bash
+    adb shell ip route | awk '{print $9}'
+    ```
+
+3. Abilita adb via TCP/IP sul tuo dispositivo: `adb tcpip 5555`.
+4. Scollega il tuo dispositivo.
+5. Connetti il tuo dispositivo: `adb connect IP_DISPOSITVO:5555` _(rimpiazza `IP_DISPOSITIVO`)_.
+6. Esegui `scrcpy` come al solito.
+
+Potrebbe essere utile diminuire il bit-rate e la definizione
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # versione breve
+```
+
+[connect]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+#### Multi dispositivo
+
+Se in `adb devices` sono listati più dispositivi, è necessario specificare il _seriale_:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # versione breve
+```
+
+Se il dispositivo è collegato mediante TCP/IP:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # versione breve
+```
+
+Puoi avviare più istanze di _scrcpy_ per diversi dispositivi.
+
+
+#### Avvio automativo alla connessione del dispositivo
+
+Potresti usare [AutoAdb]:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### Tunnel SSH
+
+Per connettersi a un dispositivo remoto è possibile collegare un client `adb` locale ad un server `adb` remoto (assunto che entrambi stiano usando la stessa versione del protocollo _adb_):
+
+```bash
+adb kill-server    # termina il server adb locale su 5037
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# tieni questo aperto
+```
+
+Da un altro terminale:
+
+```bash
+scrcpy
+```
+
+Per evitare l'abilitazione dell'apertura porte remota potresti invece forzare una "forward connection" (notare il `-L` invece di `-R`)
+
+```bash
+adb kill-server    # termina il server adb locale su 5037
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
+# tieni questo aperto
+```
+
+Da un altro terminale:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+
+Come per le connessioni wireless potrebbe essere utile ridurre la qualità:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### Configurazione della finestra
+
+#### Titolo
+
+Il titolo della finestra è il modello del dispositivo per impostazione predefinita. Esso può essere cambiato:
+
+```bash
+scrcpy --window-title 'My device'
+```
+
+#### Posizione e dimensione
+
+La posizione e la dimensione iniziale della finestra può essere specificata:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### Senza bordi
+
+Per disabilitare le decorazioni della finestra:
+
+```bash
+scrcpy --window-borderless
+```
+
+#### Sempre in primo piano
+
+Per tenere scrcpy sempre in primo piano:
+
+```bash
+scrcpy --always-on-top
+```
+
+#### Schermo intero
+
+L'app può essere avviata direttamente a schermo intero:
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # versione breve
+```
+
+Lo schermo intero può anche essere attivato/disattivato con <kbd>MOD</kbd>+<kbd>f</kbd>.
+
+#### Rotazione
+
+La finestra può essere ruotata:
+
+```bash
+scrcpy --rotation 1
+```
+
+I valori possibili sono:
+ - `0`: nessuna rotazione
+ - `1`: 90 gradi antiorari
+ - `2`: 180 gradi
+ - `3`: 90 gradi orari
+
+La rotazione può anche essere cambiata dinamicamente con <kbd>MOD</kbd>+<kbd>←</kbd>
+_(sinistra)_ e <kbd>MOD</kbd>+<kbd>→</kbd> _(destra)_.
+
+Notare che _scrcpy_ gestisce 3 diversi tipi di rotazione:
+ - <kbd>MOD</kbd>+<kbd>r</kbd> richiede al dispositvo di cambiare tra orientamento verticale (portrait) e orizzontale (landscape) (l'app in uso potrebbe rifiutarsi se non supporta l'orientamento richiesto).
+ - [`--lock-video-orientation`](#blocca-orientamento-del-video) cambia l'orientamento della trasmissione (l'orientamento del video inviato dal dispositivo al computer). Questo influenza la registrazione.
+ - `--rotation` (o <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>) ruota solo il contenuto della finestra. Questo influenza solo la visualizzazione, non la registrazione.
+
+
+### Altre opzioni di trasmissione
+
+#### "Sola lettura"
+
+Per disabilitare i controlli (tutto ciò che può interagire col dispositivo: tasti di input, eventi del mouse, trascina e rilascia (drag&drop) file):
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+#### Schermo
+
+Se sono disponibili più schermi, è possibile selezionare lo schermo da trasmettere:
+
+```bash
+scrcpy --display 1
+```
+
+La lista degli id schermo può essere ricavata da:
+
+```bash
+adb shell dumpsys display   # cerca "mDisplayId=" nell'output
+```
+
+Lo schermo secondario potrebbe essere possibile controllarlo solo se il dispositivo esegue almeno Android 10 (in caso contrario è trasmesso in modalità sola lettura).
+
+
+#### Mantenere sbloccato
+
+Per evitare che il dispositivo si blocchi dopo un po' che il dispositivo è collegato:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+Lo stato iniziale è ripristinato quando scrcpy viene chiuso.
+
+
+#### Spegnere lo schermo
+
+È possibile spegnere lo schermo del dispositivo durante la trasmissione con un'opzione da riga di comando:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+Oppure premendo <kbd>MOD</kbd>+<kbd>o</kbd> in qualsiasi momento.
+
+Per riaccenderlo premere <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
+
+In Android il pulsante `POWER` (tasto di accensione) accende sempre lo schermo. Per comodità, se `POWER` è inviato via scrcpy (con click destro o con <kbd>MOD</kbd>+<kbd>p</kbd>), si forza il dispositivo a spegnere lo schermo dopo un piccolo ritardo (appena possibile).
+Il pulsante fisico `POWER` continuerà ad accendere lo schermo normalmente.
+
+Può anche essere utile evitare il blocco del dispositivo:
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+#### Renderizzare i fotogrammi scaduti
+
+Per minimizzare la latenza _scrcpy_ renderizza sempre l'ultimo fotogramma decodificato disponibile in maniera predefinita e tralascia quelli precedenti.
+
+Per forzare la renderizzazione di tutti i fotogrammi (a costo di una possibile latenza superiore), utilizzare:
+
+```bash
+scrcpy --render-expired-frames
+```
+
+#### Mostrare i tocchi
+
+Per le presentazioni può essere utile mostrare i tocchi fisici (sul dispositivo fisico).
+
+Android fornisce questa funzionalità nelle _Opzioni sviluppatore_.
+
+_Scrcpy_ fornisce un'opzione per abilitare questa funzionalità all'avvio e ripristinare il valore iniziale alla chiusura:
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+Notare che mostra solo i tocchi _fisici_ (con le dita sul dispositivo).
+
+
+#### Disabilitare il salvaschermo
+
+In maniera predefinita scrcpy non previene l'attivazione del salvaschermo del computer.
+
+Per disabilitarlo:
+
+```bash
+scrcpy --disable-screensaver
+```
+
+
+### Input di controlli
+
+#### Rotazione dello schermo del dispostivo
+
+Premere <kbd>MOD</kbd>+<kbd>r</kbd> per cambiare tra le modalità verticale (portrait) e orizzontale (landscape).
+
+Notare che la rotazione avviene solo se l'applicazione in primo piano supporta l'orientamento richiesto.
+
+#### Copia-incolla
+
+Quando gli appunti di Android cambiano, essi vengono automaticamente sincronizzati con gli appunti del computer.
+
+Qualsiasi scorciatoia <kbd>Ctrl</kbd> viene inoltrata al dispositivo. In particolare:
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> copia
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> taglia
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> incolla (dopo la sincronizzazione degli appunti da computer a dispositivo)
+
+Questo solitamente funziona nella maniera più comune.
+
+Il comportamento reale, però, dipende dall'applicazione attiva. Per esempio _Termux_ invia SIGINT con <kbd>Ctrl</kbd>+<kbd>c</kbd>, e _K-9 Mail_ compone un nuovo messaggio.
+
+Per copiare, tagliare e incollare in questi casi (ma è solo supportato in Android >= 7):
+ - <kbd>MOD</kbd>+<kbd>c</kbd> inietta `COPY`
+ - <kbd>MOD</kbd>+<kbd>x</kbd> inietta `CUT`
+ - <kbd>MOD</kbd>+<kbd>v</kbd> inietta `PASTE` (dopo la sincronizzazione degli appunti da computer a dispositivo)
+
+In aggiunta, <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> permette l'iniezione del testo degli appunti del computer come una sequenza di eventi pressione dei tasti. Questo è utile quando il componente non accetta l'incollaggio di testo (per esempio in _Termux_), ma questo può rompere il contenuto non ASCII.
+
+**AVVISO:** Incollare gli appunti del computer nel dispositivo (sia con <kbd>Ctrl</kbd>+<kbd>v</kbd> che con <kbd>MOD</kbd>+<kbd>v</kbd>) copia il contenuto negli appunti del dispositivo. Come conseguenza, qualsiasi applicazione Android potrebbe leggere il suo contenuto. Dovresti evitare di incollare contenuti sensibili (come password) in questa maniera.
+
+Alcuni dispositivi non si comportano come aspettato quando si modificano gli appunti del dispositivo a livello di codice. L'opzione `--legacy-paste` è fornita per cambiare il comportamento di <kbd>Ctrl</kbd>+<kbd>v</kbd> and <kbd>MOD</kbd>+<kbd>v</kbd> in modo tale che anch'essi iniettino il testo gli appunti del computer come una sequenza di eventi pressione dei tasti (nella stessa maniera di <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>).
+
+#### Pizzica per zoomare (pinch-to-zoom)
+
+Per simulare il "pizzica per zoomare": <kbd>Ctrl</kbd>+_click e trascina_.
+
+Più precisamente, tieni premuto <kbd>Ctrl</kbd> mentre premi il pulsante sinistro. Finchè il pulsante non sarà rilasciato, tutti i movimenti del mouse ridimensioneranno e ruoteranno il contenuto (se supportato dall'applicazione) relativamente al centro dello schermo.
+
+Concretamente scrcpy genera degli eventi di tocco addizionali di un "dito virtuale" nella posizione simmetricamente opposta rispetto al centro dello schermo.
+
+
+#### Preferenze di iniezione del testo
+
+Ci sono due tipi di [eventi][textevents] generati quando si scrive testo:
+ - _eventi di pressione_, segnalano che tasto è stato premuto o rilasciato;
+ - _eventi di testo_, segnalano che del testo è stato inserito.
+
+In maniera predefinita le lettere sono "iniettate" usando gli eventi di pressione, in maniera tale che la tastiera si comporti come aspettato nei giochi (come accade solitamente per i tasti WASD).
+
+Questo, però, può [causare problemi][prefertext]. Se incontri un problema del genere, puoi evitarlo con:
+
+```bash
+scrcpy --prefer-text
+```
+
+(ma questo romperà il normale funzionamento della tastiera nei giochi)
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### Ripetizione di tasti
+
+In maniera predefinita tenere premuto un tasto genera una ripetizione degli eventi di pressione di tale tasto. Questo può creare problemi di performance in alcuni giochi, dove questi eventi sono inutilizzati.
+
+Per prevenire l'inoltro ripetuto degli eventi di pressione:
+
+```bash
+scrcpy --no-key-repeat
+```
+
+#### Click destro e click centrale
+
+In maniera predefinita, click destro aziona BACK (indietro) e il click centrale aziona HOME. Per disabilitare queste scorciatoie e, invece, inviare i click al dispositivo:
+
+```bash
+scrcpy --forward-all-clicks
+```
+
+
+### Rilascio di file
+
+#### Installare APK
+
+Per installare un APK, trascina e rilascia un file APK (finisce con `.apk`) nella finestra di _scrcpy_.
+
+Non c'è alcuna risposta visiva, un log è stampato nella console.
+
+
+#### Trasferimento di file verso il dispositivo
+
+Per trasferire un file in `/sdcard/` del dispositivo trascina e rilascia un file (non APK) nella finestra di _scrcpy_.
+
+Non c'è alcuna risposta visiva, un log è stampato nella console.
+
+La cartella di destinazione può essere cambiata all'avvio:
+
+```bash
+scrcpy --push-target=/sdcard/Download/
+```
+
+
+### Inoltro dell'audio
+
+L'audio non è inoltrato da _scrcpy_. Usa [sndcpy].
+
+Vedi anche la [issue #14].
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+
+## Scociatoie
+
+Nella lista seguente, <kbd>MOD</kbd> è il modificatore delle scorciatoie. In maniera predefinita è <kbd>Alt</kbd> (sinistro) o <kbd>Super</kbd> (sinistro).
+
+Può essere cambiato usando `--shortcut-mod`. I tasti possibili sono `lctrl`, `rctrl`, `lalt`, `ralt`, `lsuper` and `rsuper` (`l` significa sinistro e `r` significa destro). Per esempio:
+
+```bash
+# usa ctrl destro per le scorciatoie
+scrcpy --shortcut-mod=rctrl
+
+# use sia "ctrl sinistro"+"alt sinistro" che "super sinistro" per le scorciatoie
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_<kbd>[Super]</kbd> è il pulsante <kbd>Windows</kbd> o <kbd>Cmd</kbd>._
+
+[Super]: https://it.wikipedia.org/wiki/Tasto_Windows
+<!-- https://en.wikipedia.org/wiki/Super_key_(keyboard_button) è la pagina originale di Wikipedia inglese, l'ho sostituita con una simile in quello italiano -->
+
+ | Azione                                      |   Scorciatoia
+ | ------------------------------------------- |:-----------------------------
+ | Schermo intero                      | <kbd>MOD</kbd>+<kbd>f</kbd>
+ | Rotazione schermo a sinistra                         | <kbd>MOD</kbd>+<kbd>←</kbd> _(sinistra)_
+ | Rotazione schermo a destra                        | <kbd>MOD</kbd>+<kbd>→</kbd> _(destra)_
+ | Ridimensiona finestra a 1:1 (pixel-perfect)        | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | Ridimensiona la finestra per rimuovere i bordi neri       | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Doppio click¹_
+ | Premi il tasto `HOME`                             | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Click centrale_
+ | Premi il tasto `BACK`                             | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Click destro²_
+ | Premi il tasto `APP_SWITCH`                       | <kbd>MOD</kbd>+<kbd>s</kbd>
+ | Premi il tasto `MENU` (sblocca lo schermo)             | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | Premi il tasto `VOLUME_UP`                        | <kbd>MOD</kbd>+<kbd>↑</kbd> _(su)_
+ | Premi il tasto `VOLUME_DOWN`                      | <kbd>MOD</kbd>+<kbd>↓</kbd> _(giù)_
+ | Premi il tasto `POWER`                            | <kbd>MOD</kbd>+<kbd>p</kbd>
+ | Accendi                                    | _Click destro²_
+ | Spegni lo schermo del dispositivo (continua a trasmettere)     | <kbd>MOD</kbd>+<kbd>o</kbd>
+ | Accendi lo schermo del dispositivo                       | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
+ | Ruota lo schermo del dispositivo                        | <kbd>MOD</kbd>+<kbd>r</kbd>
+ | Espandi il pannello delle notifiche                   | <kbd>MOD</kbd>+<kbd>n</kbd>
+ | Chiudi il pannello delle notifiche                 | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | Copia negli appunti³                          | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | Taglia negli appunti³                           | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | Sincronizza gli appunti e incolla³           | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | Inietta il testo degli appunti del computer              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
+ | Abilita/Disabilita il contatore FPS (su stdout)      | <kbd>MOD</kbd>+<kbd>i</kbd>
+ | Pizzica per zoomare                               | <kbd>Ctrl</kbd>+_click e trascina_
+
+_¹Doppio click sui bordi neri per rimuoverli._  
+_²Il tasto destro accende lo schermo se era spento, preme BACK in caso contrario._  
+_³Solo in Android >= 7._
+
+Tutte le scorciatoie <kbd>Ctrl</kbd>+_tasto_ sono inoltrate al dispositivo, così sono gestite dall'applicazione attiva.
+
+## Path personalizzati
+
+Per utilizzare dei binari _adb_ specifici, configura il suo path nella variabile d'ambente `ADB`:
+
+```bash
+ADB=/percorso/per/adb scrcpy
+```
+
+Per sovrascrivere il percorso del file `scrcpy-server`, configura il percorso in `SCRCPY_SERVER_PATH`.
+
+## Perchè _scrcpy_?
+
+Un collega mi ha sfidato a trovare un nome tanto impronunciabile quanto [gnirehtet].
+
+[`strcpy`] copia una **str**ing (stringa); `scrcpy` copia uno **scr**een (schermo).
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+## Come compilare?
+
+Vedi [BUILD] (in inglese).
+
+
+## Problemi comuni
+
+Vedi le [FAQ](FAQ.it.md).
+
+
+## Sviluppatori
+
+Leggi la [pagina per sviluppatori].
+
+[pagina per sviluppatori]: DEVELOP.md
+
+
+## Licenza (in inglese)
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## Articoli (in inglese)
+
+- [Introducendo scrcpy][article-intro]
+- [Scrcpy ora funziona wireless][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/

README.jp.md

@@ -0,0 +1,725 @@
+_Only the original [README](README.md) is guaranteed to be up-to-date._
+
+# scrcpy (v1.17)
+
+このアプリケーションはUSB(もしくは[TCP/IP経由][article-tcpip])で接続されたAndroidデバイスの表示と制御を提供します。このアプリケーションは _root_ でのアクセスを必要としません。このアプリケーションは _GNU/Linux_ 、 _Windows_ そして _macOS_ 上で動作します。
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+以下に焦点を当てています:
+
+ - **軽量** (ネイティブ、デバイス画面表示のみ)
+ - **パフォーマンス**　(30~60fps)
+ - **クオリティ**　(1920x1080以上)
+ - **低遅延**　([35~70ms][lowlatency])
+ - **短い起動時間**　(初回画像を1秒以内に表示)
+ - **非侵入型**　(デバイスに何もインストールされていない状態になる)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## 必要要件
+
+AndroidデバイスはAPI21(Android 5.0)以上。
+
+Androidデバイスで[adbデバッグが有効][enable-adb]であること。
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+一部のAndroidデバイスでは、キーボードとマウスを使用して制御する[追加オプション][control]を有効にする必要がある。
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## アプリの取得
+
+<a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
+
+### Linux
+
+Debian (_testing_ と _sid_) とUbuntu(20.04):
+
+```
+apt install scrcpy
+```
+
+[Snap]パッケージが利用可能: [`scrcpy`][snap-link]
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+Fedora用[COPR]パッケージが利用可能: [`scrcpy`][copr-link]
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+Arch Linux用[AUR]パッケージが利用可能: [`scrcpy`][aur-link]
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+Gentoo用[Ebuild]が利用可能: [`scrcpy`][ebuild-link]
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+[自分でビルド][BUILD]も可能（心配しないでください、それほど難しくはありません。）
+
+
+### Windows
+
+Windowsでは簡単に、（`adb`を含む）すべての依存関係を構築済みのアーカイブを利用可能です。
+
+ - [README](README.md#windows)
+
+[Chocolatey]でも利用可能です:
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # まだ入手していない場合
+```
+
+[Scoop]でも利用可能です:
+
+```bash
+scoop install scrcpy
+scoop install adb    # まだ入手していない場合
+```
+
+[Scoop]: https://scoop.sh
+
+また、[アプリケーションをビルド][BUILD]することも可能です。
+
+### macOS
+
+アプリケーションは[Homebrew]で利用可能です。ただインストールするだけです。
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+`PATH`から`adb`へのアクセスが必要です。もしまだ持っていない場合:
+
+```bash
+# Homebrew >= 2.6.0
+brew install --cask android-platform-tools
+
+# Homebrew < 2.6.0
+brew cask install android-platform-tools
+```
+
+また、[アプリケーションをビルド][BUILD]することも可能です。
+
+
+## 実行
+
+Androidデバイスを接続し、実行:
+
+```bash
+scrcpy
+```
+
+次のコマンドでリストされるコマンドライン引数も受け付けます:
+
+```bash
+scrcpy --help
+```
+
+## 機能
+
+### キャプチャ構成
+
+#### サイズ削減
+
+Androidデバイスを低解像度でミラーリングする場合、パフォーマンス向上に便利な場合があります。
+
+幅と高さをある値(例：1024)に制限するには:
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # 短縮版
+```
+
+一方のサイズはデバイスのアスペクト比が維持されるように計算されます。この方法では、1920x1080のデバイスでは1024x576にミラーリングされます。
+
+
+#### ビットレート変更
+
+ビットレートの初期値は8Mbpsです。ビットレートを変更するには(例:2Mbpsに変更):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # 短縮版
+```
+
+#### フレームレート制限
+
+キャプチャするフレームレートを制限できます:
+
+```bash
+scrcpy --max-fps 15
+```
+
+この機能はAndroid 10からオフィシャルサポートとなっていますが、以前のバージョンでも動作する可能性があります。
+
+#### トリミング
+
+デバイスの画面は、画面の一部のみをミラーリングするようにトリミングできます。
+
+これは、例えばOculus Goの片方の目をミラーリングする場合に便利です。:
+
+```bash
+scrcpy --crop 1224:1440:0:0   # オフセット位置(0,0)で1224x1440
+```
+
+もし`--max-size`も指定されている場合、トリミング後にサイズ変更が適用されます。
+
+#### ビデオの向きをロックする
+
+ミラーリングの向きをロックするには:
+
+```bash
+scrcpy --lock-video-orientation 0   # 自然な向き
+scrcpy --lock-video-orientation 1   # 90°反時計回り
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 90°時計回り
+```
+
+この設定は録画の向きに影響します。
+
+[ウィンドウは独立して回転することもできます](#回転)。
+
+
+#### エンコーダ
+
+いくつかのデバイスでは一つ以上のエンコーダを持ちます。それらのいくつかは、問題やクラッシュを引き起こします。別のエンコーダを選択することが可能です:
+
+
+```bash
+scrcpy --encoder OMX.qcom.video.encoder.avc
+```
+
+利用可能なエンコーダをリストするために、無効なエンコーダ名を渡すことができます。エラー表示で利用可能なエンコーダを提供します。
+
+```bash
+scrcpy --encoder _
+```
+
+### 録画
+
+ミラーリング中に画面の録画をすることが可能です:
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+録画中にミラーリングを無効にするには:
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# Ctrl+Cで録画を中断する
+```
+
+"スキップされたフレーム"は(パフォーマンス上の理由で)リアルタイムで表示されなくても録画されます。
+
+フレームはデバイス上で _タイムスタンプされる_ ため [パケット遅延のバリエーション] は録画されたファイルに影響を与えません。
+
+[パケット遅延のバリエーション]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+### 接続
+
+#### ワイヤレス
+
+_Scrcpy_ はデバイスとの通信に`adb`を使用します。そして`adb`はTCP/IPを介しデバイスに[接続]することができます:
+
+1. あなたのコンピュータと同じWi-Fiに接続します。
+2. あなたのIPアドレスを取得します。設定 → 端末情報 → ステータス情報、もしくは、このコマンドを実行します:
+
+    ```bash
+    adb shell ip route | awk '{print $9}'
+    ```
+
+3. あなたのデバイスでTCP/IPを介したadbを有効にします: `adb tcpip 5555`
+4. あなたのデバイスの接続を外します。
+5. あなたのデバイスに接続します:
+ `adb connect DEVICE_IP:5555` _(`DEVICE_IP`は置き換える)_
+6. 通常通り`scrcpy`を実行します。
+
+この方法はビットレートと解像度を減らすのにおそらく有用です:
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # 短縮版
+```
+
+[接続]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+#### マルチデバイス
+
+もし`adb devices`でいくつかのデバイスがリストされる場合、 _シリアルナンバー_ を指定する必要があります:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # 短縮版
+```
+
+デバイスがTCP/IPを介して接続されている場合:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # 短縮版
+```
+
+複数のデバイスに対して、複数の _scrcpy_ インスタンスを開始することができます。
+
+#### デバイス接続での自動起動
+
+[AutoAdb]を使用可能です:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### SSHトンネル
+
+リモートデバイスに接続するため、ローカル`adb`クライアントからリモート`adb`サーバーへ接続することが可能です(同じバージョンの _adb_ プロトコルを使用している場合):
+
+```bash
+adb kill-server    # 5037ポートのローカルadbサーバーを終了する
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# オープンしたままにする
+```
+
+他の端末から:
+
+```bash
+scrcpy
+```
+
+リモートポート転送の有効化を回避するためには、代わりに転送接続を強制することができます(`-R`の代わりに`-L`を使用することに注意):
+
+```bash
+adb kill-server    # 5037ポートのローカルadbサーバーを終了する
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
+# オープンしたままにする
+```
+
+他の端末から:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+
+ワイヤレス接続と同様に、クオリティを下げると便利な場合があります:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### ウィンドウ構成
+
+#### タイトル
+
+ウィンドウのタイトルはデバイスモデルが初期値です。これは変更できます:
+
+```bash
+scrcpy --window-title 'My device'
+```
+
+#### 位置とサイズ
+
+ウィンドウの位置とサイズの初期値を指定できます:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### ボーダーレス
+
+ウィンドウの装飾を無効化するには:
+
+```bash
+scrcpy --window-borderless
+```
+
+#### 常に画面のトップ
+
+scrcpyの画面を常にトップにするには:
+
+```bash
+scrcpy --always-on-top
+```
+
+#### フルスクリーン
+
+アプリケーションを直接フルスクリーンで開始できます:
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # 短縮版
+```
+
+フルスクリーンは、次のコマンドで動的に切り替えることができます <kbd>MOD</kbd>+<kbd>f</kbd>
+
+
+#### 回転
+
+ウィンドウは回転することができます:
+
+```bash
+scrcpy --rotation 1
+```
+
+設定可能な値:
+ - `0`: 回転なし
+ - `1`: 90° 反時計回り
+ - `2`: 180°
+ - `3`: 90° 時計回り
+
+回転は次のコマンドで動的に変更することができます。 <kbd>MOD</kbd>+<kbd>←</kbd>_(左)_ 、 <kbd>MOD</kbd>+<kbd>→</kbd>_(右)_
+
+_scrcpy_ は3つの回転を管理することに注意:
+ - <kbd>MOD</kbd>+<kbd>r</kbd>はデバイスに縦向きと横向きの切り替えを要求する(現在実行中のアプリで要求している向きをサポートしていない場合、拒否することがある)
+ - [`--lock-video-orientation`](#ビデオの向きをロックする)は、ミラーリングする向きを変更する(デバイスからPCへ送信される向き)。録画に影響します。
+ - `--rotation` (もしくは<kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>)は、ウィンドウのコンテンツのみを回転します。これは表示にのみに影響し、録画には影響しません。
+
+### 他のミラーリングオプション
+
+#### Read-only　リードオンリー
+
+制御を無効にするには(デバイスと対話する全てのもの:入力キー、マウスイベント、ファイルのドラッグ&ドロップ):
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+#### ディスプレイ
+
+いくつか利用可能なディスプレイがある場合、ミラーリングするディスプレイを選択できます:
+
+```bash
+scrcpy --display 1
+```
+
+ディスプレイIDのリストは次の方法で取得できます:
+
+```
+adb shell dumpsys display   # search "mDisplayId=" in the output
+```
+
+セカンダリディスプレイは、デバイスが少なくともAndroid 10の場合にコントロール可能です。(それ以外ではリードオンリーでミラーリングされます)
+
+
+#### 起動状態にする
+
+デバイス接続時、少し遅れてからデバイスのスリープを防ぐには:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+scrcpyが閉じられた時、初期状態に復元されます。
+
+#### 画面OFF
+
+コマンドラインオプションを使用することで、ミラーリングの開始時にデバイスの画面をOFFにすることができます:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+もしくは、<kbd>MOD</kbd>+<kbd>o</kbd>を押すことでいつでもできます。
+
+元に戻すには、<kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>を押します。
+
+Androidでは、`POWER`ボタンはいつでも画面を表示します。便宜上、`POWER`がscrcpyを介して(右クリックもしくは<kbd>MOD</kbd>+<kbd>p</kbd>を介して)送信される場合、(ベストエフォートベースで)少し遅れて、強制的に画面を非表示にします。ただし、物理的な`POWER`ボタンを押した場合は、画面は表示されます。
+
+このオプションはデバイスがスリープしないようにすることにも役立ちます:
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+
+#### 期限切れフレームをレンダリングする
+
+初期状態では、待ち時間を最小限にするために、_scrcpy_ は最後にデコードされたフレームをレンダリングし、前のフレームを削除します。
+
+全フレームのレンダリングを強制するには(待ち時間が長くなる可能性があります):
+
+```bash
+scrcpy --render-expired-frames
+```
+
+#### タッチを表示
+
+プレゼンテーションの場合(物理デバイス上で)物理的なタッチを表示すると便利な場合があります。
+
+Androidはこの機能を _開発者オプション_ で提供します。
+
+_Scrcpy_　は開始時にこの機能を有効にし、終了時に初期値を復元するオプションを提供します:
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+(デバイス上で指を使った) _物理的な_ タッチのみ表示されることに注意してください。
+
+
+#### スクリーンセーバー無効
+
+初期状態では、scrcpyはコンピュータ上でスクリーンセーバーが実行される事を妨げません。
+
+これを無効にするには:
+
+```bash
+scrcpy --disable-screensaver
+```
+
+
+### 入力制御
+
+#### デバイス画面の回転
+
+<kbd>MOD</kbd>+<kbd>r</kbd>を押すことで、縦向きと横向きを切り替えます。
+
+フォアグラウンドのアプリケーションが要求された向きをサポートしている場合のみ回転することに注意してください。
+
+#### コピー-ペースト
+
+Androidのクリップボードが変更される度に、コンピュータのクリップボードに自動的に同期されます。
+
+<kbd>Ctrl</kbd>のショートカットは全てデバイスに転送されます。特に:
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> 通常はコピーします
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> 通常はカットします
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> 通常はペーストします(コンピュータとデバイスのクリップボードが同期された後)
+
+通常は期待通りに動作します。
+
+しかしながら、実際の動作はアクティブなアプリケーションに依存します。例えば、_Termux_ は代わりに<kbd>Ctrl</kbd>+<kbd>c</kbd>でSIGINTを送信します、そして、_K-9 Mail_ は新しいメッセージを作成します。
+
+このようなケースでコピー、カットそしてペーストをするには(Android 7以上でのサポートのみですが):
+ - <kbd>MOD</kbd>+<kbd>c</kbd> `COPY`を挿入
+ - <kbd>MOD</kbd>+<kbd>x</kbd> `CUT`を挿入
+ - <kbd>MOD</kbd>+<kbd>v</kbd> `PASTE`を挿入(コンピュータとデバイスのクリップボードが同期された後)
+
+加えて、<kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>はコンピュータのクリップボードテキストにキーイベントのシーケンスとして挿入することを許可します。これはコンポーネントがテキストのペーストを許可しない場合(例えば _Termux_)に有用ですが、非ASCIIコンテンツを壊す可能性があります。
+
+**警告:** デバイスにコンピュータのクリップボードを(<kbd>Ctrl</kbd>+<kbd>v</kbd>または<kbd>MOD</kbd>+<kbd>v</kbd>を介して)ペーストすることは、デバイスのクリップボードにコンテンツをコピーします。結果としてどのAndoridアプリケーションもそのコンテンツを読み取ることができます。機密性の高いコンテンツ(例えばパスワードなど)をこの方法でペーストすることは避けてください。
+
+プログラムでデバイスのクリップボードを設定した場合、一部のデバイスは期待どおりに動作しません。`--legacy-paste`オプションは、コンピュータのクリップボードテキストをキーイベントのシーケンスとして挿入するため(<kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>と同じ方法)、<kbd>Ctrl</kbd>+<kbd>v</kbd>と<kbd>MOD</kbd>+<kbd>v</kbd>の動作の変更を提供します。
+
+#### ピンチしてズームする
+
+"ピンチしてズームする"をシミュレートするには: <kbd>Ctrl</kbd>+_クリック&移動_
+
+より正確にするには、左クリックボタンを押している間、<kbd>Ctrl</kbd>を押したままにします。左クリックボタンを離すまで、全てのマウスの動きは、(アプリでサポートされている場合)画面の中心を基準として、コンテンツを拡大縮小および回転します。
+
+具体的には、scrcpyは画面の中央を反転した位置にある"バーチャルフィンガー"から追加のタッチイベントを生成します。
+
+
+#### テキストインジェクション環境設定
+
+テキストをタイプした時に生成される2種類の[イベント][textevents]があります:
+ - _key events_　はキーを押したときと離したことを通知します。
+ - _text events_　はテキストが入力されたことを通知します。
+
+初期状態で、文字はキーイベントで挿入されるため、キーボードはゲームで期待通りに動作します(通常はWASDキー)。
+
+しかし、これは[問題を引き起こす][prefertext]かもしれません。もしこのような問題が発生した場合は、この方法で回避できます:
+
+```bash
+scrcpy --prefer-text
+```
+
+(しかしこの方法はゲームのキーボードの動作を壊します)
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### キーの繰り返し
+
+初期状態では、キーの押しっぱなしは繰り返しのキーイベントを生成します。これらのイベントが使われない場合でも、この方法は一部のゲームでパフォーマンスの問題を引き起す可能性があります。
+
+繰り返しのキーイベントの転送を回避するためには:
+
+```bash
+scrcpy --no-key-repeat
+```
+
+
+#### 右クリックと真ん中クリック
+
+初期状態では、右クリックはバックの動作(もしくはパワーオン)を起こし、真ん中クリックではホーム画面へ戻ります。このショートカットを無効にし、代わりにデバイスへクリックを転送するには:
+
+```bash
+scrcpy --forward-all-clicks
+```
+
+
+### ファイルのドロップ
+
+#### APKのインストール
+
+APKをインストールするには、(`.apk`で終わる)APKファイルを _scrcpy_ の画面にドラッグ&ドロップします。
+
+見た目のフィードバックはありません。コンソールにログが出力されます。
+
+
+#### デバイスにファイルを送る
+
+デバイスの`/sdcard/`ディレクトリにファイルを送るには、(APKではない)ファイルを _scrcpy_ の画面にドラッグ&ドロップします。
+
+見た目のフィードバックはありません。コンソールにログが出力されます。
+
+転送先ディレクトリを起動時に変更することができます:
+
+```bash
+scrcpy --push-target /sdcard/foo/bar/
+```
+
+
+### 音声転送
+
+音声は _scrcpy_ では転送されません。[sndcpy]を使用します。
+
+[issue #14]も参照ください。
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+
+## ショートカット
+
+次のリストでは、<kbd>MOD</kbd>でショートカット変更します。初期状態では、(left)<kbd>Alt</kbd>または(left)<kbd>Super</kbd>です。
+
+これは`--shortcut-mod`で変更することができます。可能なキーは`lctrl`、`rctrl`、`lalt`、 `ralt`、 `lsuper`そして`rsuper`です。例えば:
+
+```bash
+# RCtrlをショートカットとして使用します
+scrcpy --shortcut-mod=rctrl
+
+# ショートカットにLCtrl+LAltまたはLSuperのいずれかを使用します
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_<kbd>[Super]</kbd>は通常<kbd>Windows</kbd>もしくは<kbd>Cmd</kbd>キーです。_
+
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
+ | アクション                                   |   ショートカット
+ | ------------------------------------------- |:-----------------------------
+ | フルスクリーンモードへの切り替え               | <kbd>MOD</kbd>+<kbd>f</kbd>
+ | ディスプレイを左に回転                        | <kbd>MOD</kbd>+<kbd>←</kbd> _(左)_
+ | ディスプレイを右に回転                        | <kbd>MOD</kbd>+<kbd>→</kbd> _(右)_
+ | ウィンドウサイズを変更して1:1に変更(ピクセルパーフェクト)  | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | ウィンドウサイズを変更して黒い境界線を削除      | <kbd>MOD</kbd>+<kbd>w</kbd> \| _ダブルクリック¹_
+ | `HOME`をクリック                             | <kbd>MOD</kbd>+<kbd>h</kbd> \| _真ん中クリック_
+ | `BACK`をクリック                             | <kbd>MOD</kbd>+<kbd>b</kbd> \| _右クリック²_
+ | `APP_SWITCH`をクリック                       | <kbd>MOD</kbd>+<kbd>s</kbd>
+ | `MENU` (画面のアンロック)をクリック            | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | `VOLUME_UP`をクリック                        | <kbd>MOD</kbd>+<kbd>↑</kbd> _(上)_
+ | `VOLUME_DOWN`をクリック                      | <kbd>MOD</kbd>+<kbd>↓</kbd> _(下)_
+ | `POWER`をクリック                            | <kbd>MOD</kbd>+<kbd>p</kbd>
+ | 電源オン                                     | _右クリック²_
+ | デバイス画面をオフにする(ミラーリングしたまま)  | <kbd>MOD</kbd>+<kbd>o</kbd>
+ | デバイス画面をオンにする                      | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
+ | デバイス画面を回転する                        | <kbd>MOD</kbd>+<kbd>r</kbd>
+ | 通知パネルを展開する                          | <kbd>MOD</kbd>+<kbd>n</kbd>
+ | 通知パネルを折りたたむ                        | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | クリップボードへのコピー³                     | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | クリップボードへのカット³                     | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | クリップボードの同期とペースト³                | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | コンピュータのクリップボードテキストの挿入      | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
+ | FPSカウンタ有効/無効(標準入出力上)             | <kbd>MOD</kbd>+<kbd>i</kbd>
+ | ピンチしてズームする                          | <kbd>Ctrl</kbd>+_クリック&移動_
+
+_¹黒い境界線を削除するため、境界線上でダブルクリック_  
+_²もしスクリーンがオフの場合、右クリックでスクリーンをオンする。それ以外の場合はBackを押します._  
+_³Android 7以上のみ._
+
+全ての<kbd>Ctrl</kbd>+_キー_ ショートカットはデバイスに転送されます、そのためアクティブなアプリケーションによって処理されます。
+
+
+## カスタムパス
+
+特定の _adb_ バイナリを使用する場合、そのパスを環境変数`ADB`で構成します:
+
+    ADB=/path/to/adb scrcpy
+
+`scrcpy-server`ファイルのパスを上書きするには、`SCRCPY_SERVER_PATH`でそのパスを構成します。
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+
+## なぜ _scrcpy_?
+
+同僚が私に、[gnirehtet]のように発音できない名前を見つけるように要求しました。
+
+[`strcpy`]は**str**ingをコピーします。`scrcpy`は**scr**eenをコピーします。
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+## ビルド方法は?
+
+[BUILD]を参照してください。
+
+[BUILD]: BUILD.md
+
+
+## よくある質問
+
+[FAQ](FAQ.md)を参照してください。
+
+
+## 開発者
+
+[開発者のページ]を読んでください。
+
+[開発者のページ]: DEVELOP.md
+
+
+## ライセンス
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## 記事
+
+- [Introducing scrcpy][article-intro]
+- [Scrcpy now works wirelessly][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/

README.ko.md

@@ -0,0 +1,498 @@
+_Only the original [README](README.md) is guaranteed to be up-to-date._
+
+# scrcpy (v1.11)
+
+This document will be updated frequently along with the original Readme file
+이 문서는 원어 리드미 파일의 업데이트에 따라 종종 업데이트 될 것입니다
+
+ 이 어플리케이션은 UBS ( 혹은 [TCP/IP][article-tcpip] ) 로 연결된 Android 디바이스를 화면에 보여주고 관리하는 것을 제공합니다.
+ _GNU/Linux_, _Windows_ 와 _macOS_ 상에서 작동합니다.
+ (아래 설명에서 디바이스는 안드로이드 핸드폰을 의미합니다.)
+
+[article-tcpip]:https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/
+
+![screenshot](https://github.com/Genymobile/scrcpy/blob/master/assets/screenshot-debian-600.jpg?raw=true)
+
+주요 기능은 다음과 같습니다.
+
+ - **가벼움** (기본적이며 디바이스의 화면만을 보여줌)
+ - **뛰어난 성능** (30~60fps)
+ - **높은 품질** (1920×1080 이상의 해상도)
+ - **빠른 반응 속도** ([35~70ms][lowlatency])
+ - **짧은 부팅 시간** (첫 사진을 보여주는데 최대 1초 소요됨)
+ - **장치 설치와는 무관함** (디바이스에 설치하지 않아도 됨)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## 요구사항
+
+안드로이드 장치는 최소 API 21 (Android 5.0) 을 필요로 합니다.
+
+디바이스에 [adb debugging][enable-adb]이 가능한지 확인하십시오.
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+어떤 디바이스에서는, 키보드와 마우스를 사용하기 위해서 [추가 옵션][control] 이 필요하기도 합니다.
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## 앱 설치하기
+
+
+### Linux (리눅스)
+
+리눅스 상에서는 보통 [어플을 직접 설치][BUILD] 해야합니다. 어렵지 않으므로 걱정하지 않아도 됩니다.
+
+[BUILD]:https://github.com/Genymobile/scrcpy/blob/master/BUILD.md
+
+[Snap] 패키지가 가능합니다 : [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+Arch Linux에서, [AUR] 패키지가 가능합니다 : [`scrcpy`][aur-link].
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+Gentoo에서 ,[Ebuild] 가 가능합니다 : [`scrcpy/`][ebuild-link].
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+
+### Windows (윈도우)
+
+윈도우 상에서, 간단하게 설치하기 위해 종속성이 있는 사전 구축된 아카이브가 제공됩니다 (`adb` 포함) :
+해당 파일은 Readme원본 링크를 통해서 다운로드가 가능합니다.
+ - [README](README.md#windows)
+
+
+[어플을 직접 설치][BUILD] 할 수도 있습니다.
+
+
+### macOS (맥 OS)
+
+이 어플리케이션은 아래 사항을 따라 설치한다면 [Homebrew] 에서도 사용 가능합니다 :
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+`PATH` 로부터 접근 가능한 `adb` 가 필요합니다. 아직 설치하지 않았다면 다음을 따라 설치해야 합니다 :
+
+```bash
+brew cask install android-platform-tools
+```
+
+[어플을 직접 설치][BUILD] 할 수도 있습니다.
+
+
+## 실행
+
+안드로이드 디바이스를 연결하고 실행하십시오:
+
+```bash
+scrcpy
+```
+
+다음과 같이 명령창 옵션 기능도 제공합니다.
+
+```bash
+scrcpy --help
+```
+
+## 기능
+
+### 캡쳐 환경 설정
+
+
+### 사이즈 재정의
+
+가끔씩 성능을 향상시키기위해 안드로이드 디바이스를 낮은 해상도에서 미러링하는 것이 유용할 때도 있습니다.
+
+너비와 높이를 제한하기 위해 특정 값으로 지정할 수 있습니다 (e.g. 1024) :
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # 축약 버전
+```
+
+이 외의 크기도 디바이스의 가로 세로 비율이 유지된 상태에서 계산됩니다.
+이러한 방식으로 디바이스 상에서 1920×1080 는 모니터 상에서1024×576로 미러링될 것 입니다.
+
+
+### bit-rate 변경
+
+기본 bit-rate 는 8 Mbps입니다. 비디오 bit-rate 를 변경하기 위해선 다음과 같이 입력하십시오 (e.g. 2 Mbps로 변경):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # 축약 버전
+```
+
+### 프레임 비율 제한
+
+안드로이드 버전 10이상의 디바이스에서는, 다음의 명령어로 캡쳐 화면의 프레임 비율을 제한할 수 있습니다:
+
+```bash
+scrcpy --max-fps 15
+```
+
+
+### Crop (잘라내기)
+
+디바이스 화면은 화면의 일부만 미러링하기 위해 잘라질 것입니다.
+
+예를 들어, *Oculus Go* 의 한 쪽 눈만 미러링할 때 유용합니다 :
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 1224x1440 at offset (0,0)
+scrcpy -c 1224:1440:0:0       # 축약 버전
+```
+
+만약 `--max-size` 도 지정하는 경우, 잘라낸 다음에 재정의된 크기가 적용될 것입니다.
+
+
+### 화면 녹화
+
+미러링하는 동안 화면 녹화를 할 수 있습니다 :
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+녹화하는 동안 미러링을 멈출 수 있습니다 :
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# Ctrl+C 로 녹화를 중단할 수 있습니다.
+# 윈도우 상에서 Ctrl+C 는 정상정으로 종료되지 않을 수 있으므로, 디바이스 연결을 해제하십시오.
+```
+
+"skipped frames" 은 모니터 화면에 보여지지 않았지만 녹화되었습니다 ( 성능 문제로 인해 ). 프레임은 디바이스 상에서 _타임 스탬프 ( 어느 시점에 데이터가 존재했다는 사실을 증명하기 위해 특정 위치에 시각을 표시 )_ 되었으므로, [packet delay
+variation] 은 녹화된 파일에 영향을 끼치지 않습니다.
+
+[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+## 연결
+
+### 무선연결
+
+_Scrcpy_ 장치와 정보를 주고받기 위해 `adb` 를 사용합니다.  `adb` 는 TCIP/IP 를 통해 디바이스와 [연결][connect] 할 수 있습니다 :
+
+1. 컴퓨터와 디바이스를 동일한 Wi-Fi 에 연결합니다.
+2. 디바이스의 IP address 를 확인합니다 (설정 → 내 기기 → 상태 / 혹은 인터넷에 '내 IP'검색 시 확인 가능합니다. ).
+3. TCP/IP 를 통해 디바이스에서 adb 를 사용할 수 있게 합니다: `adb tcpip 5555`.
+4. 디바이스 연결을 해제합니다.
+5. adb 를 통해 디바이스에 연결을 합니다\: `adb connect DEVICE_IP:5555` _(`DEVICE_IP` 대신)_.
+6. `scrcpy` 실행합니다.
+
+다음은 bit-rate 와 해상도를 줄이는데 유용합니다 :
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # 축약 버전
+```
+
+[connect]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+
+### 여러 디바이스 사용 가능
+
+만약에 여러 디바이스들이 `adb devices` 목록에 표시되었다면, _serial_ 을 명시해야합니다:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # 축약 버전
+```
+
+_scrcpy_ 로 여러 디바이스를 연결해 사용할 수 있습니다.
+
+
+#### SSH tunnel
+
+떨어져 있는 디바이스와 연결하기 위해서는, 로컬 `adb` client와 떨어져 있는 `adb` 서버를 연결해야 합니다.  (디바이스와 클라이언트가 동일한 버전의 _adb_ protocol을 사용할 경우에 제공됩니다.):
+
+```bash
+adb kill-server    # 5037의 로컬 local adb server를 중단
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# 실행 유지
+```
+
+다른 터미널에서는 :
+
+```bash
+scrcpy
+```
+
+무선 연결과 동일하게, 화질을 줄이는 것이 나을 수 있습니다:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+## Window에서의 배치
+
+### 맞춤형 window 제목
+
+기본적으로, window의 이름은 디바이스의 모델명 입니다.
+다음의 명령어를 통해 변경하세요.
+
+```bash
+scrcpy --window-title 'My device'
+```
+
+
+### 배치와 크기
+
+초기 window창의 배치와 크기는 다음과 같이 설정할 수 있습니다:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+
+### 경계 없애기
+
+윈도우 장식(경계선 등)을 다음과 같이 제거할 수 있습니다:
+
+```bash
+scrcpy --window-borderless
+```
+
+### 항상 모든 윈도우 위에 실행창 고정
+
+이 어플리케이션의 윈도우 창은 다음의 명령어로 다른 window 위에 디스플레이 할 수 있습니다:
+
+```bash
+scrcpy --always-on-top
+scrcpy -T  # 축약 버전
+```
+
+### 전체 화면
+
+이 어플리케이션은 전체화면으로 바로 시작할 수 있습니다.
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # short version
+```
+
+전체 화면은  `Ctrl`+`f`키로 끄거나 켤 수 있습니다.
+
+
+## 다른 미러링 옵션
+
+### 읽기 전용(Read-only)
+
+권한을 제한하기 위해서는 (디바이스와 관련된 모든 것: 입력 키, 마우스 이벤트 , 파일의 드래그 앤 드랍(drag&drop)):
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+### 화면 끄기
+
+미러링을 실행하는 와중에 디바이스의 화면을 끌 수 있게 하기 위해서는
+다음의 커맨드 라인 옵션을(command line option) 입력하세요:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+혹은 `Ctrl`+`o`을 눌러 언제든지 디바이스의 화면을 끌 수 있습니다.
+
+다시 화면을 켜기 위해서는`POWER` (혹은 `Ctrl`+`p`)를 누르세요.
+
+
+### 유효기간이 지난 프레임 제공 (Render expired frames)
+
+디폴트로, 대기시간을 최소화하기 위해 _scrcpy_ 는 항상 마지막으로 디코딩된 프레임을 제공합니다
+과거의 프레임은 하나씩 삭제합니다.
+
+모든 프레임을 강제로 렌더링하기 위해서는 (대기 시간이 증가될 수 있습니다)
+다음의 명령어를 사용하세요:
+
+```bash
+scrcpy --render-expired-frames
+```
+
+
+### 화면에 터치 나타내기
+
+발표를 할 때, 물리적인 기기에 한 물리적 터치를 나타내는 것이 유용할 수 있습니다.
+
+안드로이드 운영체제는 이런 기능을 _Developers options_에서 제공합니다.
+
+_Scrcpy_ 는 이런 기능을 시작할 때와 종료할 때 옵션으로 제공합니다.
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+화면에 _물리적인 터치만_ 나타나는 것에 유의하세요 (손가락을 디바이스에 대는 행위).
+
+
+### 입력 제어
+
+#### 복사-붙여넣기
+
+컴퓨터와 디바이스 양방향으로 클립보드를 복사하는 것이 가능합니다:
+
+ - `Ctrl`+`c` 디바이스의 클립보드를 컴퓨터로 복사합니다;
+ - `Ctrl`+`Shift`+`v` 컴퓨터의 클립보드를 디바이스로 복사합니다;
+ - `Ctrl`+`v` 컴퓨터의 클립보드를 text event 로써 _붙여넣습니다_  ( 그러나, ASCII 코드가 아닌 경우 실행되지 않습니다 )
+
+#### 텍스트 삽입 우선 순위
+
+텍스트를 입력할 때 생성되는 두 가지의 [events][textevents] 가 있습니다:
+ - _key events_, 키가 눌려있는 지에 대한 신호;
+ - _text events_, 텍스트가 입력되었는지에 대한 신호.
+
+기본적으로, 글자들은 key event 를 이용해 입력되기 때문에, 키보드는 게임에서처럼 처리합니다 ( 보통 WASD 키에 대해서 ).
+
+그러나 이는 [issues 를 발생][prefertext]시킵니다. 이와 관련된 문제를 접할 경우, 아래와 같이 피할 수 있습니다:
+
+```bash
+scrcpy --prefer-text
+```
+
+( 그러나 이는 게임에서의 처리를 중단할 수 있습니다 )
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+### 파일 드랍
+
+### APK 실행하기
+
+APK를 실행하기 위해서는, APK file(파일명이`.apk`로 끝나는 파일)을  드래그하고 _scrcpy_ window에 드랍하세요 (drag and drop)
+
+시각적인 피드백은 없고,log 하나가 콘솔에 출력될 것입니다.
+
+### 디바이스에 파일 push하기
+
+디바이스의`/sdcard/`에 파일을 push하기 위해서는,
+APK파일이 아닌 파일을_scrcpy_ window에 드래그하고 드랍하세요.(drag and drop).
+
+시각적인 피드백은 없고,log 하나가 콘솔에 출력될 것입니다.
+
+해당 디렉토리는 시작할 때 변경이 가능합니다:
+
+```bash
+scrcpy --push-target /sdcard/foo/bar/
+```
+
+### 오디오의 전달
+
+_scrcpy_는 오디오를 직접 전달해주지 않습니다. [USBaudio] (Linux-only)를 사용하세요.
+
+추가적으로 [issue #14]를 참고하세요.
+
+[USBaudio]: https://github.com/rom1v/usbaudio
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+## 단축키
+
+ | 실행내용                                |   단축키                       |   단축키 (macOS)
+ | -------------------------------------- |:----------------------------- |:-----------------------------
+ | 전체화면 모드로 전환                      | `Ctrl`+`f`                    | `Cmd`+`f`
+ | window를 1:1비율로 전환하기(픽셀 맞춤)   | `Ctrl`+`g`                    | `Cmd`+`g`
+ | 검은 공백 제거 위한 window 크기 조정  | `Ctrl`+`x` \| _Double-click¹_ | `Cmd`+`x`  \| _Double-click¹_
+ |`HOME` 클릭                        | `Ctrl`+`h` \| _Middle-click_  | `Ctrl`+`h` \| _Middle-click_
+ | `BACK` 클릭                      | `Ctrl`+`b` \| _Right-click²_  | `Cmd`+`b`  \| _Right-click²_
+ | `APP_SWITCH` 클릭                 | `Ctrl`+`s`                    | `Cmd`+`s`
+ | `MENU` 클릭                       | `Ctrl`+`m`                    | `Ctrl`+`m`
+ | `VOLUME_UP` 클릭                   | `Ctrl`+`↑` _(up)_             | `Cmd`+`↑` _(up)_
+ | `VOLUME_DOWN` 클릭                | `Ctrl`+`↓` _(down)_           | `Cmd`+`↓` _(down)_
+ | `POWER` 클릭                      | `Ctrl`+`p`                    | `Cmd`+`p`
+ | 전원 켜기                               | _Right-click²_                | _Right-click²_
+ | 미러링 중 디바이스 화면 끄기    | `Ctrl`+`o`                    | `Cmd`+`o`
+ | 알림 패널 늘리기               | `Ctrl`+`n`                    | `Cmd`+`n`
+ | 알림 패널 닫기            | `Ctrl`+`Shift`+`n`            | `Cmd`+`Shift`+`n`
+ | 디바이스의 clipboard 컴퓨터로 복사하기      | `Ctrl`+`c`                    | `Cmd`+`c`
+ | 컴퓨터의 clipboard 디바이스에 붙여넣기     | `Ctrl`+`v`                    | `Cmd`+`v`
+ | Copy computer clipboard to device      | `Ctrl`+`Shift`+`v`            | `Cmd`+`Shift`+`v`
+ | Enable/disable FPS counter (on stdout) | `Ctrl`+`i`                    | `Cmd`+`i`
+
+_¹검은 공백을 제거하기 위해서는 그 부분을 더블 클릭하세요_
+_²화면이 꺼진 상태에서 우클릭 시 다시 켜지며, 그 외의 상태에서는 뒤로 돌아갑니다.
+
+## 맞춤 경로 (custom path)
+
+특정한 _adb_ binary를 사용하기 위해서는, 그것의 경로를 환경변수로 설정하세요.
+`ADB`:
+
+    ADB=/path/to/adb scrcpy
+
+`scrcpy-server.jar`파일의 경로에 오버라이드 하기 위해서는, 그것의 경로를 `SCRCPY_SERVER_PATH`에 저장하세요.
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+
+## _scrcpy_ 인 이유?
+
+한 동료가 [gnirehtet]와 같이 발음하기 어려운 이름을 찾을 수 있는지 도발했습니다.
+
+[`strcpy`] 는 **str**ing을 copy하고; `scrcpy`는 **scr**een을 copy합니다.
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+
+## 빌드하는 방법?
+
+[BUILD]을 참고하세요.
+
+[BUILD]: BUILD.md
+
+## 흔한 issue
+
+[FAQ](FAQ.md)을 참고하세요.
+
+
+## 개발자들
+
+[developers page]를 참고하세요.
+
+[developers page]: DEVELOP.md
+
+
+## 라이선스
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## 관련 글 (articles)
+
+- [scrcpy 소개][article-intro]
+- [무선으로 연결하는 Scrcpy][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/

README.md

@@ -1,4 +1,8 @@
-# scrcpy (v1.9)
+# scrcpy (v1.19)
+
+![icon](data/icon.png)
+
+[Read in another language](#translations)
 
 This application provides display and control of Android devices connected on
 USB (or [over TCP/IP][article-tcpip]). It does not require any _root_ access.
@@ -6,6 +10,17 @@ It works on _GNU/Linux_, _Windows_ and _macOS_.
 
 ![screenshot](assets/screenshot-debian-600.jpg)
 
+It focuses on:
+
+ - **lightness** (native, displays only the device screen)
+ - **performance** (30~60fps)
+ - **quality** (1920×1080 or above)
+ - **low latency** ([35~70ms][lowlatency])
+ - **low startup time** (~1 second to display the first image)
+ - **non-intrusiveness** (nothing is left installed on the device)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
 
 ## Requirements
 
@@ -23,11 +38,27 @@ control it using keyboard and mouse.
 
 ## Get the app
 
+<a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
+
+### Summary
+
+ - Linux: `apt install scrcpy`
+ - Windows: [download][direct-win64]
+ - macOS: `brew install scrcpy`
+
+Build from sources: [BUILD] ([simplified process][BUILD_simple])
+
+[BUILD]: BUILD.md
+[BUILD_simple]: BUILD.md#simple
+
 
 ### Linux
 
-On Linux, you typically need to [build the app manually][BUILD]. Don't worry,
+On Debian (_testing_ and _sid_ for now) and Ubuntu (20.04):
-it's not that hard.
+
+```
+apt install scrcpy
+```
 
 A [Snap] package is available: [`scrcpy`][snap-link].
 
@@ -35,6 +66,11 @@ A [Snap] package is available: [`scrcpy`][snap-link].
 
 [snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
 
+For Fedora, a [COPR] package is available: [`scrcpy`][copr-link].
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
 For Arch Linux, an [AUR] package is available: [`scrcpy`][aur-link].
 
 [AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
@@ -45,19 +81,37 @@ For Gentoo, an [Ebuild] is available: [`scrcpy/`][ebuild-link].
 [Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
 [ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
 
+You could also [build the app manually][BUILD] ([simplified
+process][BUILD_simple]).
+
 
 ### Windows
 
-For Windows, for simplicity, prebuilt archives with all the dependencies
+For Windows, for simplicity, a prebuilt archive with all the dependencies
-(including `adb`) are available:
+(including `adb`) is available:
 
- - [`scrcpy-win32-v1.9.zip`][direct-win32]  
+ - [`scrcpy-win64-v1.19.zip`][direct-win64]  
-   _(SHA-256: 3234f7fbcc26b9e399f50b5ca9ed085708954c87fda1b0dd32719d6e7dd861ef)_
+   _(SHA-256: 383d6483f25ac0092d4bb9fef6c967351ecd50fc248e0c82932db97d6d32f11b)_
- - [`scrcpy-win64-v1.9.zip`][direct-win64]  
-   _(SHA-256: 0088eca1811ea7c7ac350d636c8465b266e6c830bb268770ff88fddbb493077e)_
 
-[direct-win32]: https://github.com/Genymobile/scrcpy/releases/download/v1.9/scrcpy-win32-v1.9.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.19/scrcpy-win64-v1.19.zip
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.9/scrcpy-win64-v1.9.zip
+
+It is also available in [Chocolatey]:
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # if you don't have it yet
+```
+
+And in [Scoop]:
+
+```bash
+scoop install scrcpy
+scoop install adb    # if you don't have it yet
+```
+
+[Scoop]: https://scoop.sh
 
 You can also [build the app manually][BUILD].
 
@@ -75,9 +129,18 @@ brew install scrcpy
 You need `adb`, accessible from your `PATH`. If you don't have it yet:
 
 ```bash
-brew cask install android-platform-tools
+brew install android-platform-tools
 ```
 
+It's also available in [MacPorts], which sets up adb for you:
+
+```bash
+sudo port install scrcpy
+```
+
+[MacPorts]: https://www.macports.org/
+
+
 You can also [build the app manually][BUILD].
 
 
@@ -97,8 +160,9 @@ scrcpy --help
 
 ## Features
 
+### Capture configuration
 
-### Reduce size
+#### Reduce size
 
 Sometimes, it is useful to mirror an Android device at a lower definition to
 increase performance.
@@ -114,7 +178,7 @@ The other dimension is computed to that the device aspect ratio is preserved.
 That way, a device in 1920×1080 will be mirrored at 1024×576.
 
 
-### Change bit-rate
+#### Change bit-rate
 
 The default bit-rate is 8 Mbps. To change the video bitrate (e.g. to 2 Mbps):
 
@@ -123,8 +187,17 @@ scrcpy --bit-rate 2M
 scrcpy -b 2M  # short version
 ```
 
+#### Limit frame rate
 
-### Crop
+The capture frame rate can be limited:
+
+```bash
+scrcpy --max-fps 15
+```
+
+This is officially supported since Android 10, but may work on earlier versions.
+
+#### Crop
 
 The device screen may be cropped to mirror only part of the screen.
 
@@ -132,19 +205,157 @@ This is useful for example to mirror only one eye of the Oculus Go:
 
 ```bash
 scrcpy --crop 1224:1440:0:0   # 1224x1440 at offset (0,0)
-scrcpy -c 1224:1440:0:0       # short version
 ```
 
 If `--max-size` is also specified, resizing is applied after cropping.
 
 
-### Wireless
+#### Lock video orientation
+
+
+To lock the orientation of the mirroring:
+
+```bash
+scrcpy --lock-video-orientation     # initial (current) orientation
+scrcpy --lock-video-orientation=0   # natural orientation
+scrcpy --lock-video-orientation=1   # 90° counterclockwise
+scrcpy --lock-video-orientation=2   # 180°
+scrcpy --lock-video-orientation=3   # 90° clockwise
+```
+
+This affects recording orientation.
+
+The [window may also be rotated](#rotation) independently.
+
+
+#### Encoder
+
+Some devices have more than one encoder, and some of them may cause issues or
+crash. It is possible to select a different encoder:
+
+```bash
+scrcpy --encoder OMX.qcom.video.encoder.avc
+```
+
+To list the available encoders, you could pass an invalid encoder name, the
+error will give the available encoders:
+
+```bash
+scrcpy --encoder _
+```
+
+### Capture
+
+#### Recording
+
+It is possible to record the screen while mirroring:
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+To disable mirroring while recording:
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# interrupt recording with Ctrl+C
+```
+
+"Skipped frames" are recorded, even if they are not displayed in real time (for
+performance reasons). Frames are _timestamped_ on the device, so [packet delay
+variation] does not impact the recorded file.
+
+[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+#### v4l2loopback
+
+On Linux, it is possible to send the video stream to a v4l2 loopback device, so
+that the Android device can be opened like a webcam by any v4l2-capable tool.
+
+The module `v4l2loopback` must be installed:
+
+```bash
+sudo apt install v4l2loopback-dkms
+```
+
+To create a v4l2 device:
+
+```bash
+sudo modprobe v4l2loopback
+```
+
+This will create a new video device in `/dev/videoN`, where `N` is an integer
+(more [options](https://github.com/umlaeute/v4l2loopback#options) are available
+to create several devices or devices with specific IDs).
+
+To list the enabled devices:
+
+```bash
+# requires v4l-utils package
+v4l2-ctl --list-devices
+
+# simple but might be sufficient
+ls /dev/video*
+```
+
+To start scrcpy using a v4l2 sink:
+
+```bash
+scrcpy --v4l2-sink=/dev/videoN
+scrcpy --v4l2-sink=/dev/videoN --no-display  # disable mirroring window
+scrcpy --v4l2-sink=/dev/videoN -N            # short version
+```
+
+(replace `N` by the device ID, check with `ls /dev/video*`)
+
+Once enabled, you can open your video stream with a v4l2-capable tool:
+
+```bash
+ffplay -i /dev/videoN
+vlc v4l2:///dev/videoN   # VLC might add some buffering delay
+```
+
+For example, you could capture the video within [OBS].
+
+[OBS]: https://obsproject.com/
+
+
+#### Buffering
+
+It is possible to add buffering. This increases latency but reduces jitter (see
+#2464).
+
+The option is available for display buffering:
+
+```bash
+scrcpy --display-buffer=50  # add 50 ms buffering for display
+```
+
+and V4L2 sink:
+
+```bash
+scrcpy --v4l2-buffer=500    # add 500 ms buffering for v4l2 sink
+```
+
+
+### Connection
+
+#### Wireless
 
 _Scrcpy_ uses `adb` to communicate with the device, and `adb` can [connect] to a
 device over TCP/IP:
 
 1. Connect the device to the same Wi-Fi as your computer.
-2. Get your device IP address (in Settings → About phone → Status).
+2. Get your device IP address, in Settings → About phone → Status, or by
+   executing this command:
+
+    ```bash
+    adb shell ip route | awk '{print $9}'
+    ```
+
 3. Enable adb over TCP/IP on your device: `adb tcpip 5555`.
 4. Unplug your device.
 5. Connect to your device: `adb connect DEVICE_IP:5555` _(replace `DEVICE_IP`)_.
@@ -160,32 +371,7 @@ scrcpy -b2M -m800  # short version
 [connect]: https://developer.android.com/studio/command-line/adb.html#wireless
 
 
-### Record screen
+#### Multi-devices
-
-It is possible to record the screen while mirroring:
-
-```bash
-scrcpy --record file.mp4
-scrcpy -r file.mkv
-```
-
-To disable mirroring while recording:
-
-```bash
-scrcpy --no-display --record file.mp4
-scrcpy -Nr file.mkv
-# interrupt recording with Ctrl+C
-# Ctrl+C does not terminate properly on Windows, so disconnect the device
-```
-
-"Skipped frames" are recorded, even if they are not displayed in real time (for
-performance reasons). Frames are _timestamped_ on the device, so [packet delay
-variation] does not impact the recorded file.
-
-[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
-
-
-### Multi-devices
 
 If several devices are listed in `adb devices`, you must specify the _serial_:
 
@@ -194,10 +380,100 @@ scrcpy --serial 0123456789abcdef
 scrcpy -s 0123456789abcdef  # short version
 ```
 
+If the device is connected over TCP/IP:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # short version
+```
+
 You can start several instances of _scrcpy_ for several devices.
 
+#### Autostart on device connection
 
-### Fullscreen
+You could use [AutoAdb]:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### SSH tunnel
+
+To connect to a remote device, it is possible to connect a local `adb` client to
+a remote `adb` server (provided they use the same version of the _adb_
+protocol):
+
+```bash
+adb kill-server    # kill the local adb server on 5037
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# keep this open
+```
+
+From another terminal:
+
+```bash
+scrcpy
+```
+
+To avoid enabling remote port forwarding, you could force a forward connection
+instead (notice the `-L` instead of `-R`):
+
+```bash
+adb kill-server    # kill the local adb server on 5037
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
+# keep this open
+```
+
+From another terminal:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+
+Like for wireless connections, it may be useful to reduce quality:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### Window configuration
+
+#### Title
+
+By default, the window title is the device model. It can be changed:
+
+```bash
+scrcpy --window-title 'My device'
+```
+
+#### Position and size
+
+The initial window position and size may be specified:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### Borderless
+
+To disable window decorations:
+
+```bash
+scrcpy --window-borderless
+```
+
+#### Always on top
+
+To keep the scrcpy window always on top:
+
+```bash
+scrcpy --always-on-top
+```
+
+#### Fullscreen
 
 The app may be started directly in fullscreen:
 
@@ -206,58 +482,40 @@ scrcpy --fullscreen
 scrcpy -f  # short version
 ```
 
-Fullscreen can then be toggled dynamically with `Ctrl`+`f`.
+Fullscreen can then be toggled dynamically with <kbd>MOD</kbd>+<kbd>f</kbd>.
 
+#### Rotation
 
-### Always on top
+The window may be rotated:
-
-The window of app can always be above others by:
 
 ```bash
-scrcpy --always-on-top
+scrcpy --rotation 1
-scrcpy -T  # short version
 ```
 
+Possibles values are:
+ - `0`: no rotation
+ - `1`: 90 degrees counterclockwise
+ - `2`: 180 degrees
+ - `3`: 90 degrees clockwise
 
-### Show touches
+The rotation can also be changed dynamically with <kbd>MOD</kbd>+<kbd>←</kbd>
+_(left)_ and <kbd>MOD</kbd>+<kbd>→</kbd> _(right)_.
 
-For presentations, it may be useful to show physical touches (on the physical
+Note that _scrcpy_ manages 3 different rotations:
-device).
+ - <kbd>MOD</kbd>+<kbd>r</kbd> requests the device to switch between portrait
-
+   and landscape (the current running app may refuse, if it does not support the
-Android provides this feature in _Developers options_.
+   requested orientation).
-
+ - [`--lock-video-orientation`](#lock-video-orientation) changes the mirroring
-_Scrcpy_ provides an option to enable this feature on start and disable on exit:
+   orientation (the orientation of the video sent from the device to the
-
+   computer). This affects the recording.
-```bash
+ - `--rotation` (or <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>)
-scrcpy --show-touches
+   rotates only the window content. This affects only the display, not the
-scrcpy -t
+   recording.
-```
-
-Note that it only shows _physical_ touches (with the finger on the device).
 
 
-### Install APK
+### Other mirroring options
 
-To install an APK, drag & drop an APK file (ending with `.apk`) to the _scrcpy_
+#### Read-only
-window.
-
-There is no visual feedback, a log is printed to the console.
-
-
-### Push file to device
-
-To push a file to `/sdcard/` on the device, drag & drop a (non-APK) file to the
-_scrcpy_ window.
-
-There is no visual feedback, a log is printed to the console.
-
-The target directory can be changed on start:
-
-```bash
-scrcpy --push-target /sdcard/foo/bar/
-```
-
-### Read-only
 
 To disable controls (everything which can interact with the device: input keys,
 mouse events, drag&drop files):
@@ -267,7 +525,38 @@ scrcpy --no-control
 scrcpy -n
 ```
 
-### Turn screen off
+#### Display
+
+If several displays are available, it is possible to select the display to
+mirror:
+
+```bash
+scrcpy --display 1
+```
+
+The list of display ids can be retrieved by:
+
+```bash
+adb shell dumpsys display   # search "mDisplayId=" in the output
+```
+
+The secondary display may only be controlled if the device runs at least Android
+10 (otherwise it is mirrored in read-only).
+
+
+#### Stay awake
+
+To prevent the device to sleep after some delay when the device is plugged in:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+The initial state is restored when scrcpy is closed.
+
+
+#### Turn screen off
 
 It is possible to turn the device screen off while mirroring on start with a
 command-line option:
@@ -277,67 +566,303 @@ scrcpy --turn-screen-off
 scrcpy -S
 ```
 
-Or by pressing `Ctrl`+`o` at any time.
+Or by pressing <kbd>MOD</kbd>+<kbd>o</kbd> at any time.
 
-To turn it back on, press `POWER` (or `Ctrl`+`p`).
+To turn it back on, press <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
 
+On Android, the `POWER` button always turns the screen on. For convenience, if
+`POWER` is sent via scrcpy (via right-click or <kbd>MOD</kbd>+<kbd>p</kbd>), it
+will force to turn the screen off after a small delay (on a best effort basis).
+The physical `POWER` button will still cause the screen to be turned on.
 
-### Render expired frames
+It can also be useful to prevent the device from sleeping:
-
-By default, to minimize latency, _scrcpy_ always renders the last decoded frame
-available, and drops any previous one.
-
-To force the rendering of all frames (at a cost of a possible increased
-latency), use:
 
 ```bash
-scrcpy --render-expired-frames
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
 ```
 
-### Custom window title
+#### Power off on close
 
-By default, the window title is the device model. It can be changed:
+To turn the device screen off when closing scrcpy:
 
 ```bash
-scrcpy --window-title 'My device'
+scrcpy --power-off-on-close
 ```
 
 
-### Forward audio
+#### Show touches
 
-Audio is not forwarded by _scrcpy_. Use [USBaudio] (Linux-only).
+For presentations, it may be useful to show physical touches (on the physical
+device).
+
+Android provides this feature in _Developers options_.
+
+_Scrcpy_ provides an option to enable this feature on start and restore the
+initial value on exit:
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+Note that it only shows _physical_ touches (with the finger on the device).
+
+
+#### Disable screensaver
+
+By default, scrcpy does not prevent the screensaver to run on the computer.
+
+To disable it:
+
+```bash
+scrcpy --disable-screensaver
+```
+
+
+### Input control
+
+#### Rotate device screen
+
+Press <kbd>MOD</kbd>+<kbd>r</kbd> to switch between portrait and landscape
+modes.
+
+Note that it rotates only if the application in foreground supports the
+requested orientation.
+
+#### Copy-paste
+
+Any time the Android clipboard changes, it is automatically synchronized to the
+computer clipboard.
+
+Any <kbd>Ctrl</kbd> shortcut is forwarded to the device. In particular:
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> typically copies
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> typically cuts
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> typically pastes (after computer-to-device
+   clipboard synchronization)
+
+This typically works as you expect.
+
+The actual behavior depends on the active application though. For example,
+_Termux_ sends SIGINT on <kbd>Ctrl</kbd>+<kbd>c</kbd> instead, and _K-9 Mail_
+composes a new message.
+
+To copy, cut and paste in such cases (but only supported on Android >= 7):
+ - <kbd>MOD</kbd>+<kbd>c</kbd> injects `COPY`
+ - <kbd>MOD</kbd>+<kbd>x</kbd> injects `CUT`
+ - <kbd>MOD</kbd>+<kbd>v</kbd> injects `PASTE` (after computer-to-device
+   clipboard synchronization)
+
+In addition, <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> allows to inject the
+computer clipboard text as a sequence of key events. This is useful when the
+component does not accept text pasting (for example in _Termux_), but it can
+break non-ASCII content.
+
+**WARNING:** Pasting the computer clipboard to the device (either via
+<kbd>Ctrl</kbd>+<kbd>v</kbd> or <kbd>MOD</kbd>+<kbd>v</kbd>) copies the content
+into the device clipboard. As a consequence, any Android application could read
+its content. You should avoid to paste sensitive content (like passwords) that
+way.
+
+Some devices do not behave as expected when setting the device clipboard
+programmatically. An option `--legacy-paste` is provided to change the behavior
+of <kbd>Ctrl</kbd>+<kbd>v</kbd> and <kbd>MOD</kbd>+<kbd>v</kbd> so that they
+also inject the computer clipboard text as a sequence of key events (the same
+way as <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>).
+
+#### Pinch-to-zoom
+
+To simulate "pinch-to-zoom": <kbd>Ctrl</kbd>+_click-and-move_.
+
+More precisely, hold <kbd>Ctrl</kbd> while pressing the left-click button. Until
+the left-click button is released, all mouse movements scale and rotate the
+content (if supported by the app) relative to the center of the screen.
+
+Concretely, scrcpy generates additional touch events from a "virtual finger" at
+a location inverted through the center of the screen.
+
+#### Physical keyboard simulation (HID)
+
+By default, scrcpy uses Android key or text injection: it works everywhere, but
+is limited to ASCII.
+
+On Linux, scrcpy can simulate a USB physical keyboard on Android to provide a
+better input experience (using [USB HID over AOAv2][hid-aoav2]): the virtual
+keyboard is disabled and it works for all characters and IME.
+
+[hid-aoav2]: https://source.android.com/devices/accessories/aoa2#hid-support
+
+However, it only works if the device is connected by USB, and is currently only
+supported on Linux.
+
+To enable this mode:
+
+```bash
+scrcpy --hid-keyboard
+scrcpy -K  # short version
+```
+
+If it fails for some reason (for example because the device is not connected via
+USB), it automatically fallbacks to the default mode (with a log in the
+console). This allows to use the same command line options when connected over
+USB and TCP/IP.
+
+In this mode, raw key events (scancodes) are sent to the device, independently
+of the host key mapping. Therefore, if your keyboard layout does not match, it
+must be configured on the Android device, in Settings → System → Languages and
+input → [Physical keyboard].
+
+[Physical keyboard]: https://github.com/Genymobile/scrcpy/pull/2632#issuecomment-923756915
+
+
+#### Text injection preference
+
+There are two kinds of [events][textevents] generated when typing text:
+ - _key events_, signaling that a key is pressed or released;
+ - _text events_, signaling that a text has been entered.
+
+By default, letters are injected using key events, so that the keyboard behaves
+as expected in games (typically for WASD keys).
+
+But this may [cause issues][prefertext]. If you encounter such a problem, you
+can avoid it by:
+
+```bash
+scrcpy --prefer-text
+```
+
+(but this will break keyboard behavior in games)
+
+This option has no effect on HID keyboard (all key events are sent as
+scancodes in this mode).
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### Key repeat
+
+By default, holding a key down generates repeated key events. This can cause
+performance problems in some games, where these events are useless anyway.
+
+To avoid forwarding repeated key events:
+
+```bash
+scrcpy --no-key-repeat
+```
+
+This option has no effect on HID keyboard (key repeat is handled by Android
+directly in this mode).
+
+
+#### Right-click and middle-click
+
+By default, right-click triggers BACK (or POWER on) and middle-click triggers
+HOME. To disable these shortcuts and forward the clicks to the device instead:
+
+```bash
+scrcpy --forward-all-clicks
+```
+
+
+### File drop
+
+#### Install APK
+
+To install an APK, drag & drop an APK file (ending with `.apk`) to the _scrcpy_
+window.
+
+There is no visual feedback, a log is printed to the console.
+
+
+#### Push file to device
+
+To push a file to `/sdcard/Download/` on the device, drag & drop a (non-APK)
+file to the _scrcpy_ window.
+
+There is no visual feedback, a log is printed to the console.
+
+The target directory can be changed on start:
+
+```bash
+scrcpy --push-target=/sdcard/Movies/
+```
+
+
+### Audio forwarding
+
+Audio is not forwarded by _scrcpy_. Use [sndcpy].
 
 Also see [issue #14].
 
-[USBaudio]: https://github.com/rom1v/usbaudio
+[sndcpy]: https://github.com/rom1v/sndcpy
 [issue #14]: https://github.com/Genymobile/scrcpy/issues/14
 
 
 ## Shortcuts
 
- | Action                                 |   Shortcut                    |   Shortcut (macOS)
+In the following list, <kbd>MOD</kbd> is the shortcut modifier. By default, it's
- | -------------------------------------- |:----------------------------- |:-----------------------------
+(left) <kbd>Alt</kbd> or (left) <kbd>Super</kbd>.
- | Switch fullscreen mode                 | `Ctrl`+`f`                    | `Cmd`+`f`
+
- | Resize window to 1:1 (pixel-perfect)   | `Ctrl`+`g`                    | `Cmd`+`g`
+It can be changed using `--shortcut-mod`. Possible keys are `lctrl`, `rctrl`,
- | Resize window to remove black borders  | `Ctrl`+`x` \| _Double-click¹_ | `Cmd`+`x`  \| _Double-click¹_
+`lalt`, `ralt`, `lsuper` and `rsuper`. For example:
- | Click on `HOME`                        | `Ctrl`+`h` \| _Middle-click_  | `Ctrl`+`h` \| _Middle-click_
+
- | Click on `BACK`                        | `Ctrl`+`b` \| _Right-click²_  | `Cmd`+`b`  \| _Right-click²_
+```bash
- | Click on `APP_SWITCH`                  | `Ctrl`+`s`                    | `Cmd`+`s`
+# use RCtrl for shortcuts
- | Click on `MENU`                        | `Ctrl`+`m`                    | `Ctrl`+`m`
+scrcpy --shortcut-mod=rctrl
- | Click on `VOLUME_UP`                   | `Ctrl`+`↑` _(up)_             | `Cmd`+`↑` _(up)_
+
- | Click on `VOLUME_DOWN`                 | `Ctrl`+`↓` _(down)_           | `Cmd`+`↓` _(down)_
+# use either LCtrl+LAlt or LSuper for shortcuts
- | Click on `POWER`                       | `Ctrl`+`p`                    | `Cmd`+`p`
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
- | Power on                               | _Right-click²_                | _Right-click²_
+```
- | Turn device screen off (keep mirroring)| `Ctrl`+`o`                    | `Cmd`+`o`
+
- | Expand notification panel              | `Ctrl`+`n`                    | `Cmd`+`n`
+_<kbd>[Super]</kbd> is typically the <kbd>Windows</kbd> or <kbd>Cmd</kbd> key._
- | Collapse notification panel            | `Ctrl`+`Shift`+`n`            | `Cmd`+`Shift`+`n`
+
- | Copy device clipboard to computer      | `Ctrl`+`c`                    | `Cmd`+`c`
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
- | Paste computer clipboard to device     | `Ctrl`+`v`                    | `Cmd`+`v`
+
- | Copy computer clipboard to device      | `Ctrl`+`Shift`+`v`            | `Cmd`+`Shift`+`v`
+ | Action                                      |   Shortcut
- | Enable/disable FPS counter (on stdout) | `Ctrl`+`i`                    | `Cmd`+`i`
+ | ------------------------------------------- |:-----------------------------
+ | Switch fullscreen mode                      | <kbd>MOD</kbd>+<kbd>f</kbd>
+ | Rotate display left                         | <kbd>MOD</kbd>+<kbd>←</kbd> _(left)_
+ | Rotate display right                        | <kbd>MOD</kbd>+<kbd>→</kbd> _(right)_
+ | Resize window to 1:1 (pixel-perfect)        | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | Resize window to remove black borders       | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Double-left-click¹_
+ | Click on `HOME`                             | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Middle-click_
+ | Click on `BACK`                             | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Right-click²_
+ | Click on `APP_SWITCH`                       | <kbd>MOD</kbd>+<kbd>s</kbd> \| _4th-click³_
+ | Click on `MENU` (unlock screen)             | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | Click on `VOLUME_UP`                        | <kbd>MOD</kbd>+<kbd>↑</kbd> _(up)_
+ | Click on `VOLUME_DOWN`                      | <kbd>MOD</kbd>+<kbd>↓</kbd> _(down)_
+ | Click on `POWER`                            | <kbd>MOD</kbd>+<kbd>p</kbd>
+ | Power on                                    | _Right-click²_
+ | Turn device screen off (keep mirroring)     | <kbd>MOD</kbd>+<kbd>o</kbd>
+ | Turn device screen on                       | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
+ | Rotate device screen                        | <kbd>MOD</kbd>+<kbd>r</kbd>
+ | Expand notification panel                   | <kbd>MOD</kbd>+<kbd>n</kbd> \| _5th-click³_
+ | Expand settings panel                       | <kbd>MOD</kbd>+<kbd>n</kbd>+<kbd>n</kbd> \| _Double-5th-click³_
+ | Collapse panels                             | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | Copy to clipboard⁴                          | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | Cut to clipboard⁴                           | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | Synchronize clipboards and paste⁴           | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | Inject computer clipboard text              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
+ | Enable/disable FPS counter (on stdout)      | <kbd>MOD</kbd>+<kbd>i</kbd>
+ | Pinch-to-zoom                               | <kbd>Ctrl</kbd>+_click-and-move_
+ | Drag & drop APK file                        | Install APK from computer
+ | Drag & drop non-APK file                    | [Push file to device](#push-file-to-device)
 
 _¹Double-click on black borders to remove them._  
-_²Right-click turns the screen on if it was off, presses BACK otherwise._
+_²Right-click turns the screen on if it was off, presses BACK otherwise._  
+_³4th and 5th mouse buttons, if your mouse has them._  
+_⁴Only on Android >= 7._
+
+Shortcuts with repeated keys are executted by releasing and pressing the key a
+second time. For example, to execute "Expand settings panel":
+
+ 1. Press and keep pressing <kbd>MOD</kbd>.
+ 2. Then double-press <kbd>n</kbd>.
+ 3. Finally, release <kbd>MOD</kbd>.
+
+All <kbd>Ctrl</kbd>+_key_ shortcuts are forwarded to the device, so they are
+handled by the active application.
 
 
 ## Custom paths
@@ -345,12 +870,14 @@ _²Right-click turns the screen on if it was off, presses BACK otherwise._
 To use a specific _adb_ binary, configure its path in the environment variable
 `ADB`:
 
-    ADB=/path/to/adb scrcpy
+```bash
+ADB=/path/to/adb scrcpy
+```
 
-To override the path of the `scrcpy-server.jar` file, configure its path in
+To override the path of the `scrcpy-server` file, configure its path in
 `SCRCPY_SERVER_PATH`.
 
-[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+To override the icon, configure its path in `SCRCPY_ICON_PATH`.
 
 
 ## Why _scrcpy_?
@@ -367,8 +894,6 @@ A colleague challenged me to find a name as unpronounceable as [gnirehtet].
 
 See [BUILD].
 
-[BUILD]: BUILD.md
-
 
 ## Common issues
 
@@ -385,7 +910,7 @@ Read the [developers page].
 ## Licence
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2019 Romain Vimont
+    Copyright (C) 2018-2021 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
@@ -406,3 +931,19 @@ Read the [developers page].
 
 [article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
 [article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/
+
+## Translations
+
+This README is available in other languages:
+
+- [Indonesian (Indonesia, `id`) - v1.16](README.id.md)
+- [Italiano (Italiano, `it`) - v1.17](README.it.md)
+- [日本語 (Japanese, `jp`) - v1.17](README.jp.md)
+- [한국어 (Korean, `ko`) - v1.11](README.ko.md)
+- [português brasileiro (Brazilian Portuguese, `pt-BR`) - v1.17](README.pt-br.md)
+- [Español (Spanish, `sp`) - v1.17](README.sp.md)
+- [简体中文 (Simplified Chinese, `zh-Hans`) - v1.17](README.zh-Hans.md)
+- [繁體中文 (Traditional Chinese, `zh-Hant`) - v1.15](README.zh-Hant.md)
+- [Turkish (Turkish, `tr`) - v1.18](README.tr.md)
+
+Only this README file is guaranteed to be up-to-date.

README.pt-br.md

@@ -0,0 +1,792 @@
+_Apenas o [README](README.md) original é garantido estar atualizado._
+
+# scrcpy (v1.17)
+
+Esta aplicação fornece exibição e controle de dispositivos Android conectados via
+USB (ou [via TCP/IP][article-tcpip]). Não requer nenhum acesso _root_.
+Funciona em _GNU/Linux_, _Windows_ e _macOS_.
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+Foco em:
+
+ - **leveza** (nativo, mostra apenas a tela do dispositivo)
+ - **performance** (30~60fps)
+ - **qualidade** (1920×1080 ou acima)
+ - **baixa latência** ([35~70ms][lowlatency])
+ - **baixo tempo de inicialização** (~1 segundo para mostrar a primeira imagem)
+ - **não intrusivo** (nada é deixado instalado no dispositivo)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## Requisitos
+
+O dispositivo Android requer pelo menos a API 21 (Android 5.0).
+
+Tenha certeza de ter [ativado a depuração adb][enable-adb] no(s) seu(s) dispositivo(s).
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+Em alguns dispositivos, você também precisa ativar [uma opção adicional][control] para
+controlá-lo usando teclado e mouse.
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## Obter o app
+
+<a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
+
+### Linux
+
+No Debian (_testing_ e _sid_ por enquanto) e Ubuntu (20.04):
+
+```
+apt install scrcpy
+```
+
+Um pacote [Snap] está disponível: [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+Para Fedora, um pacote [COPR] está disponível: [`scrcpy`][copr-link].
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+Para Arch Linux, um pacote [AUR] está disponível: [`scrcpy`][aur-link].
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+Para Gentoo, uma [Ebuild] está disponível: [`scrcpy/`][ebuild-link].
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+Você também pode [compilar o app manualmente][BUILD] (não se preocupe, não é tão
+difícil).
+
+
+
+### Windows
+
+Para Windows, por simplicidade, um arquivo pré-compilado com todas as dependências
+(incluindo `adb`) está disponível:
+
+ - [README](README.md#windows)
+
+Também está disponível em [Chocolatey]:
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # se você ainda não o tem
+```
+
+E no [Scoop]:
+
+```bash
+scoop install scrcpy
+scoop install adb    # se você ainda não o tem
+```
+
+[Scoop]: https://scoop.sh
+
+Você também pode [compilar o app manualmente][BUILD].
+
+
+### macOS
+
+A aplicação está disponível em [Homebrew]. Apenas instale-a:
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+Você precisa do `adb`, acessível pelo seu `PATH`. Se você ainda não o tem:
+
+```bash
+# Homebrew >= 2.6.0
+brew install --cask android-platform-tools
+
+# Homebrew < 2.6.0
+brew cask install android-platform-tools
+```
+
+Você também pode [compilar o app manualmente][BUILD].
+
+
+## Executar
+
+Conecte um dispositivo Android e execute:
+
+```bash
+scrcpy
+```
+
+Também aceita argumentos de linha de comando, listados por:
+
+```bash
+scrcpy --help
+```
+
+## Funcionalidades
+
+### Configuração de captura
+
+#### Reduzir tamanho
+
+Algumas vezes, é útil espelhar um dispositivo Android em uma resolução menor para
+aumentar a performance.
+
+Para limitar ambos (largura e altura) para algum valor (ex: 1024):
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # versão curta
+```
+
+A outra dimensão é calculada para que a proporção do dispositivo seja preservada.
+Dessa forma, um dispositivo de 1920x1080 será espelhado em 1024x576.
+
+
+#### Mudar bit-rate
+
+O bit-rate padrão é 8 Mbps. Para mudar o bit-rate do vídeo (ex: para 2 Mbps):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # versão curta
+```
+
+#### Limitar frame rate
+
+O frame rate de captura pode ser limitado:
+
+```bash
+scrcpy --max-fps 15
+```
+
+Isso é oficialmente suportado desde o Android 10, mas pode funcionar em versões anteriores.
+
+#### Cortar
+
+A tela do dispositivo pode ser cortada para espelhar apenas uma parte da tela.
+
+Isso é útil por exemplo, para espelhar apenas um olho do Oculus Go:
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 1224x1440 no deslocamento (0,0)
+```
+
+Se `--max-size` também for especificado, o redimensionamento é aplicado após o corte.
+
+
+#### Travar orientação do vídeo
+
+
+Para travar a orientação do espelhamento:
+
+```bash
+scrcpy --lock-video-orientation 0   # orientação natural
+scrcpy --lock-video-orientation 1   # 90° sentido anti-horário
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 90° sentido horário
+```
+
+Isso afeta a orientação de gravação.
+
+A [janela também pode ser rotacionada](#rotação) independentemente.
+
+
+#### Encoder
+
+Alguns dispositivos têm mais de um encoder, e alguns deles podem causar problemas ou
+travar. É possível selecionar um encoder diferente:
+
+```bash
+scrcpy --encoder OMX.qcom.video.encoder.avc
+```
+
+Para listar os encoders disponíveis, você pode passar um nome de encoder inválido, o
+erro dará os encoders disponíveis:
+
+```bash
+scrcpy --encoder _
+```
+
+### Gravando
+
+É possível gravar a tela enquanto ocorre o espelhamento:
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+Para desativar o espelhamento durante a gravação:
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# interrompa a gravação com Ctrl+C
+```
+
+"Frames pulados" são gravados, mesmo que não sejam exibidos em tempo real (por
+motivos de performance). Frames têm seu _horário carimbado_ no dispositivo, então [variação de atraso nos
+pacotes][packet delay variation] não impacta o arquivo gravado.
+
+[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+### Conexão
+
+#### Sem fio
+
+_Scrcpy_ usa `adb` para se comunicar com o dispositivo, e `adb` pode [conectar-se][connect] a um
+dispositivo via TCP/IP:
+
+1. Conecte o dispositivo no mesmo Wi-Fi do seu computador.
+2. Pegue o endereço IP do seu dispositivo, em Configurações → Sobre o telefone → Status, ou
+   executando este comando:
+
+    ```bash
+    adb shell ip route | awk '{print $9}'
+    ```
+
+3. Ative o adb via TCP/IP no seu dispositivo: `adb tcpip 5555`.
+4. Desconecte seu dispositivo.
+5. Conecte-se ao seu dispositivo: `adb connect DEVICE_IP:5555` _(substitua `DEVICE_IP`)_.
+6. Execute `scrcpy` como de costume.
+
+Pode ser útil diminuir o bit-rate e a resolução:
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # versão curta
+```
+
+[connect]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+#### Múltiplos dispositivos
+
+Se vários dispositivos são listados em `adb devices`, você deve especificar o _serial_:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # versão curta
+```
+
+Se o dispositivo está conectado via TCP/IP:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # versão curta
+```
+
+Você pode iniciar várias instâncias do _scrcpy_ para vários dispositivos.
+
+#### Iniciar automaticamente quando dispositivo é conectado
+
+Você pode usar [AutoAdb]:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### Túnel SSH
+
+Para conectar-se a um dispositivo remoto, é possível conectar um cliente `adb` local a
+um servidor `adb` remoto (contanto que eles usem a mesma versão do protocolo
+_adb_):
+
+```bash
+adb kill-server    # encerra o servidor adb local em 5037
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# mantenha isso aberto
+```
+
+De outro terminal:
+
+```bash
+scrcpy
+```
+
+Para evitar ativar o encaminhamento de porta remota, você pode forçar uma conexão
+de encaminhamento (note o `-L` em vez de `-R`):
+
+```bash
+adb kill-server    # encerra o servidor adb local em 5037
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
+# mantenha isso aberto
+```
+
+De outro terminal:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+
+Igual a conexões sem fio, pode ser útil reduzir a qualidade:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### Configuração de janela
+
+#### Título
+
+Por padrão, o título da janela é o modelo do dispositivo. Isso pode ser mudado:
+
+```bash
+scrcpy --window-title 'Meu dispositivo'
+```
+
+#### Posição e tamanho
+
+A posição e tamanho iniciais da janela podem ser especificados:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### Sem bordas
+
+Para desativar decorações de janela:
+
+```bash
+scrcpy --window-borderless
+```
+
+#### Sempre no topo
+
+Para manter a janela do scrcpy sempre no topo:
+
+```bash
+scrcpy --always-on-top
+```
+
+#### Tela cheia
+
+A aplicação pode ser iniciada diretamente em tela cheia:
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # versão curta
+```
+
+Tela cheia pode ser alternada dinamicamente com <kbd>MOD</kbd>+<kbd>f</kbd>.
+
+#### Rotação
+
+A janela pode ser rotacionada:
+
+```bash
+scrcpy --rotation 1
+```
+
+Valores possíveis são:
+ - `0`: sem rotação
+ - `1`: 90 graus sentido anti-horário
+ - `2`: 180 graus
+ - `3`: 90 graus sentido horário
+
+A rotação também pode ser mudada dinamicamente com <kbd>MOD</kbd>+<kbd>←</kbd>
+_(esquerda)_ e <kbd>MOD</kbd>+<kbd>→</kbd> _(direita)_.
+
+Note que _scrcpy_ controla 3 rotações diferentes:
+ - <kbd>MOD</kbd>+<kbd>r</kbd> requisita ao dispositivo para mudar entre retrato
+   e paisagem (a aplicação em execução pode se recusar, se ela não suporta a
+   orientação requisitada).
+ - [`--lock-video-orientation`](#travar-orientação-do-vídeo) muda a orientação de
+   espelhamento (a orientação do vídeo enviado pelo dispositivo para o
+   computador). Isso afeta a gravação.
+ - `--rotation` (ou <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>)
+   rotaciona apenas o conteúdo da janela. Isso afeta apenas a exibição, não a
+   gravação.
+
+
+### Outras opções de espelhamento
+
+#### Apenas leitura
+
+Para desativar controles (tudo que possa interagir com o dispositivo: teclas de entrada,
+eventos de mouse, arrastar e soltar arquivos):
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+#### Display
+
+Se vários displays estão disponíveis, é possível selecionar o display para
+espelhar:
+
+```bash
+scrcpy --display 1
+```
+
+A lista de IDs dos displays pode ser obtida por:
+
+```
+adb shell dumpsys display   # busca "mDisplayId=" na saída
+```
+
+O display secundário pode apenas ser controlado se o dispositivo roda pelo menos Android
+10 (caso contrário é espelhado como apenas leitura).
+
+
+#### Permanecer ativo
+
+Para evitar que o dispositivo seja suspenso após um delay quando o dispositivo é conectado:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+O estado inicial é restaurado quando o scrcpy é fechado.
+
+
+#### Desligar tela
+
+É possível desligar a tela do dispositivo durante o início do espelhamento com uma
+opção de linha de comando:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+Ou apertando <kbd>MOD</kbd>+<kbd>o</kbd> a qualquer momento.
+
+Para ligar novamente, pressione <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
+
+No Android, o botão de `POWER` sempre liga a tela. Por conveniência, se
+`POWER` é enviado via scrcpy (via clique-direito ou <kbd>MOD</kbd>+<kbd>p</kbd>), ele
+forçará a desligar a tela após um delay pequeno (numa base de melhor esforço).
+O botão `POWER` físico ainda causará a tela ser ligada.
+
+Também pode ser útil evitar que o dispositivo seja suspenso:
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+
+#### Renderizar frames expirados
+
+Por padrão, para minimizar a latência, _scrcpy_ sempre renderiza o último frame decodificado
+disponível, e descarta o anterior.
+
+Para forçar a renderização de todos os frames (com o custo de um possível aumento de
+latência), use:
+
+```bash
+scrcpy --render-expired-frames
+```
+
+#### Mostrar toques
+
+Para apresentações, pode ser útil mostrar toques físicos (no dispositivo
+físico).
+
+Android fornece esta funcionalidade nas _Opções do desenvolvedor_.
+
+_Scrcpy_ fornece esta opção de ativar esta funcionalidade no início e restaurar o
+valor inicial no encerramento:
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+Note que isto mostra apenas toques _físicos_ (com o dedo no dispositivo).
+
+
+#### Desativar descanso de tela
+
+Por padrão, scrcpy não evita que o descanso de tela rode no computador.
+
+Para desativá-lo:
+
+```bash
+scrcpy --disable-screensaver
+```
+
+
+### Controle de entrada
+
+#### Rotacionar a tela do dispositivo
+
+Pressione <kbd>MOD</kbd>+<kbd>r</kbd> para mudar entre os modos retrato e
+paisagem.
+
+Note que só será rotacionado se a aplicação em primeiro plano suportar a
+orientação requisitada.
+
+#### Copiar-colar
+
+Sempre que a área de transferência do Android muda, é automaticamente sincronizada com a
+área de transferência do computador.
+
+Qualquer atalho com <kbd>Ctrl</kbd> é encaminhado para o dispositivo. Em particular:
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> tipicamente copia
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> tipicamente recorta
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> tipicamente cola (após a sincronização de área de transferência
+   computador-para-dispositivo)
+
+Isso tipicamente funciona como esperado.
+
+O comportamento de fato depende da aplicação ativa, no entanto. Por exemplo,
+_Termux_ envia SIGINT com <kbd>Ctrl</kbd>+<kbd>c</kbd>, e _K-9 Mail_
+compõe uma nova mensagem.
+
+Para copiar, recortar e colar em tais casos (mas apenas suportado no Android >= 7):
+ - <kbd>MOD</kbd>+<kbd>c</kbd> injeta `COPY`
+ - <kbd>MOD</kbd>+<kbd>x</kbd> injeta `CUT`
+ - <kbd>MOD</kbd>+<kbd>v</kbd> injeta `PASTE` (após a sincronização de área de transferência
+   computador-para-dispositivo)
+
+Em adição, <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> permite injetar o
+texto da área de transferência do computador como uma sequência de eventos de tecla. Isso é útil quando o
+componente não aceita colar texto (por exemplo no _Termux_), mas pode
+quebrar conteúdo não-ASCII.
+
+**ADVERTÊNCIA:** Colar a área de transferência do computador para o dispositivo (tanto via
+<kbd>Ctrl</kbd>+<kbd>v</kbd> quanto <kbd>MOD</kbd>+<kbd>v</kbd>) copia o conteúdo
+para a área de transferência do dispositivo. Como consequência, qualquer aplicação Android pode ler
+o seu conteúdo. Você deve evitar colar conteúdo sensível (como senhas) dessa
+forma.
+
+Alguns dispositivos não se comportam como esperado quando a área de transferência é definida
+programaticamente. Uma opção `--legacy-paste` é fornecida para mudar o comportamento
+de <kbd>Ctrl</kbd>+<kbd>v</kbd> e <kbd>MOD</kbd>+<kbd>v</kbd> para que eles
+também injetem o texto da área de transferência do computador como uma sequência de eventos de tecla (da mesma
+forma que <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>).
+
+#### Pinçar para dar zoom
+
+Para simular "pinçar para dar zoom": <kbd>Ctrl</kbd>+_clicar-e-mover_.
+
+Mais precisamente, segure <kbd>Ctrl</kbd> enquanto pressiona o botão de clique-esquerdo. Até que
+o botão de clique-esquerdo seja liberado, todos os movimentos do mouse ampliar e rotacionam o
+conteúdo (se suportado pelo app) relativo ao centro da tela.
+
+Concretamente, scrcpy gera eventos adicionais de toque de um "dedo virtual" em
+uma posição invertida em relação ao centro da tela.
+
+
+#### Preferência de injeção de texto
+
+Existem dois tipos de [eventos][textevents] gerados ao digitar um texto:
+ - _eventos de tecla_, sinalizando que a tecla foi pressionada ou solta;
+ - _eventos de texto_, sinalizando que o texto foi inserido.
+
+Por padrão, letras são injetadas usando eventos de tecla, assim o teclado comporta-se
+como esperado em jogos (normalmente para teclas WASD).
+
+Mas isso pode [causar problemas][prefertext]. Se você encontrar tal problema, você
+pode evitá-lo com:
+
+```bash
+scrcpy --prefer-text
+```
+
+(mas isso vai quebrar o comportamento do teclado em jogos)
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### Repetir tecla
+
+Por padrão, segurar uma tecla gera eventos de tecla repetidos. Isso pode causar
+problemas de performance em alguns jogos, onde esses eventos são inúteis de qualquer forma.
+
+Para evitar o encaminhamento eventos de tecla repetidos:
+
+```bash
+scrcpy --no-key-repeat
+```
+
+
+#### Clique-direito e clique-do-meio
+
+Por padrão, clique-direito dispara BACK (ou POWER) e clique-do-meio dispara
+HOME. Para desabilitar esses atalhos e encaminhar os cliques para o dispositivo:
+
+```bash
+scrcpy --forward-all-clicks
+```
+
+
+### Soltar arquivo
+
+#### Instalar APK
+
+Para instalar um APK, arraste e solte o arquivo APK (com extensão `.apk`) na janela
+_scrcpy_.
+
+Não existe feedback visual, um log é imprimido no console.
+
+
+#### Enviar arquivo para dispositivo
+
+Para enviar um arquivo para `/sdcard/` no dispositivo, arraste e solte um arquivo (não-APK) para a
+janela do _scrcpy_.
+
+Não existe feedback visual, um log é imprimido no console.
+
+O diretório alvo pode ser mudado ao iniciar:
+
+```bash
+scrcpy --push-target /sdcard/foo/bar/
+```
+
+
+### Encaminhamento de áudio
+
+Áudio não é encaminhado pelo _scrcpy_. Use [sndcpy].
+
+Também veja [issue #14].
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+
+## Atalhos
+
+Na lista a seguir, <kbd>MOD</kbd> é o modificador de atalho. Por padrão, é
+<kbd>Alt</kbd> (esquerdo) ou <kbd>Super</kbd> (esquerdo).
+
+Ele pode ser mudado usando `--shortcut-mod`. Possíveis teclas são `lctrl`, `rctrl`,
+`lalt`, `ralt`, `lsuper` e `rsuper`. Por exemplo:
+
+```bash
+# usar RCtrl para atalhos
+scrcpy --shortcut-mod=rctrl
+
+# usar tanto LCtrl+LAlt quanto LSuper para atalhos
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_<kbd>[Super]</kbd> é tipicamente a tecla <kbd>Windows</kbd> ou <kbd>Cmd</kbd>._
+
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
+ | Ação                                        |   Atalho
+ | ------------------------------------------- |:-----------------------------
+ | Mudar modo de tela cheia                    | <kbd>MOD</kbd>+<kbd>f</kbd>
+ | Rotacionar display para esquerda            | <kbd>MOD</kbd>+<kbd>←</kbd> _(esquerda)_
+ | Rotacionar display para direita             | <kbd>MOD</kbd>+<kbd>→</kbd> _(direita)_
+ | Redimensionar janela para 1:1 (pixel-perfect) | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | Redimensionar janela para remover bordas pretas | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Clique-duplo¹_
+ | Clicar em `HOME`                            | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Clique-do-meio_
+ | Clicar em `BACK`                            | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Clique-direito²_
+ | Clicar em `APP_SWITCH`                      | <kbd>MOD</kbd>+<kbd>s</kbd>
+ | Clicar em `MENU` (desbloquear tela          | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | Clicar em `VOLUME_UP`                       | <kbd>MOD</kbd>+<kbd>↑</kbd> _(cima)_
+ | Clicar em `VOLUME_DOWN`                     | <kbd>MOD</kbd>+<kbd>↓</kbd> _(baixo)_
+ | Clicar em `POWER`                           | <kbd>MOD</kbd>+<kbd>p</kbd>
+ | Ligar                                       | _Clique-direito²_
+ | Desligar tela do dispositivo (continuar espelhando) | <kbd>MOD</kbd>+<kbd>o</kbd>
+ | Ligar tela do dispositivo                   | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
+ | Rotacionar tela do dispositivo              | <kbd>MOD</kbd>+<kbd>r</kbd>
+ | Expandir painel de notificação              | <kbd>MOD</kbd>+<kbd>n</kbd>
+ | Colapsar painel de notificação              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | Copiar para área de transferência³          | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | Recortar para área de transferência³        | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | Sincronizar áreas de transferência e colar³ | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | Injetar texto da área de transferência do computador | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
+ | Ativar/desativar contador de FPS (em stdout) | <kbd>MOD</kbd>+<kbd>i</kbd>
+ | Pinçar para dar zoom                        | <kbd>Ctrl</kbd>+_clicar-e-mover_
+
+_¹Clique-duplo em bordas pretas para removê-las._  
+_²Clique-direito liga a tela se ela estiver desligada, pressiona BACK caso contrário._
+_³Apenas em Android >= 7._
+
+Todos os atalhos <kbd>Ctrl</kbd>+_tecla_ são encaminhados para o dispositivo, para que eles sejam
+tratados pela aplicação ativa.
+
+
+## Caminhos personalizados
+
+Para usar um binário _adb_ específico, configure seu caminho na variável de ambiente
+`ADB`:
+
+    ADB=/caminho/para/adb scrcpy
+
+Para sobrepor o caminho do arquivo `scrcpy-server`, configure seu caminho em
+`SCRCPY_SERVER_PATH`.
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+
+## Por quê _scrcpy_?
+
+Um colega me desafiou a encontrar um nome tão impronunciável quanto [gnirehtet].
+
+[`strcpy`] copia uma **str**ing; `scrcpy` copia uma **scr**een.
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+## Como compilar?
+
+Veja [BUILD].
+
+[BUILD]: BUILD.md
+
+
+## Problemas comuns
+
+Veja o [FAQ](FAQ.md).
+
+
+## Desenvolvedores
+
+Leia a [página dos desenvolvedores][developers page].
+
+[developers page]: DEVELOP.md
+
+
+## Licença
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## Artigos
+
+- [Introducing scrcpy][article-intro]
+- [Scrcpy now works wirelessly][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/

README.sp.md

@@ -0,0 +1,743 @@
+Solo se garantiza que el archivo [README](README.md) original esté actualizado.
+
+# scrcpy (v1.17)
+
+Esta aplicación proporciona imagen y control de un dispositivo Android conectado
+por USB (o [por TCP/IP][article-tcpip]). No requiere acceso _root_.
+Compatible con _GNU/Linux_, _Windows_ y _macOS_.
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+Sus características principales son:
+
+ - **ligero** (nativo, solo muestra la imagen del dispositivo)
+ - **desempeño** (30~60fps)
+ - **calidad** (1920×1080 o superior)
+ - **baja latencia** ([35~70ms][lowlatency])
+ - **corto tiempo de inicio** (~1 segundo para mostrar la primera imagen)
+ - **no intrusivo** (no se deja nada instalado en el dispositivo)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## Requisitos
+
+El dispositivo Android requiere como mínimo API 21 (Android 5.0).
+
+Asegurate de [habilitar el adb debugging][enable-adb] en tu(s) dispositivo(s).
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+En algunos dispositivos, también necesitas habilitar [una opción adicional][control] para controlarlo con el teclado y ratón.
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## Consigue la app
+
+<a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
+
+### Resumen
+
+ - Linux: `apt install scrcpy`
+ - Windows: [download](README.md#windows)
+ - macOS: `brew install scrcpy`
+
+Construir desde la fuente: [BUILD] ([proceso simplificado][BUILD_simple])
+
+[BUILD]: BUILD.md
+[BUILD_simple]: BUILD.md#simple
+
+
+### Linux
+
+En Debian (_test_ y _sid_ por ahora) y Ubuntu (20.04):
+
+```
+apt install scrcpy
+```
+
+Hay un paquete [Snap]: [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+Para Fedora, hay un paquete [COPR]: [`scrcpy`][copr-link].
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+Para Arch Linux, hay un paquete [AUR]: [`scrcpy`][aur-link].
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+Para Gentoo, hay un paquete [Ebuild]: [`scrcpy/`][ebuild-link].
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+También puedes [construir la aplicación manualmente][BUILD] ([proceso simplificado][BUILD_simple]).
+
+
+### Windows
+
+Para Windows, por simplicidad, hay un pre-compilado con todas las dependencias
+(incluyendo `adb`):
+
+ - [README](README.md#windows)
+
+También está disponible en [Chocolatey]:
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # si aún no está instalado
+```
+
+Y en [Scoop]:
+
+```bash
+scoop install scrcpy
+scoop install adb    # si aún no está instalado
+```
+
+[Scoop]: https://scoop.sh
+
+También puedes [construir la aplicación manualmente][BUILD].
+
+
+### macOS
+
+La aplicación está disponible en [Homebrew]. Solo instalala:
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+Necesitarás `adb`, accesible desde `PATH`. Si aún no lo tienes:
+
+```bash
+brew install android-platform-tools
+```
+
+También está disponible en [MacPorts], que configurará el adb automáticamente:
+
+```bash
+sudo port install scrcpy
+```
+
+[MacPorts]: https://www.macports.org/
+
+
+También puedes [construir la aplicación manualmente][BUILD].
+
+
+## Ejecutar
+
+Enchufa el dispositivo Android, y ejecuta:
+
+```bash
+scrcpy
+```
+
+Acepta argumentos desde la línea de comandos, listados en:
+
+```bash
+scrcpy --help
+```
+
+## Características
+
+### Capturar configuración
+
+#### Reducir la definición
+
+A veces es útil reducir la definición de la imagen del dispositivo Android para aumentar el desempeño.
+
+Para limitar el ancho y la altura a un valor específico (ej. 1024):
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # versión breve
+```
+
+La otra dimensión es calculada para conservar el aspect ratio del dispositivo.
+De esta forma, un dispositivo en 1920×1080 será transmitido a 1024×576.
+
+
+#### Cambiar el bit-rate
+
+El bit-rate por defecto es 8 Mbps. Para cambiar el bit-rate del video (ej. a 2 Mbps):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # versión breve
+```
+
+#### Limitar los fps
+
+El fps puede ser limitado:
+
+```bash
+scrcpy --max-fps 15
+```
+
+Es oficialmente soportado desde Android 10, pero puede funcionar en versiones anteriores.
+
+#### Recortar
+
+La imagen del dispositivo puede ser recortada para transmitir solo una parte de la pantalla.
+
+Por ejemplo, puede ser útil para transmitir la imagen de un solo ojo del Oculus Go:
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 1224x1440 con coordenadas de origen en (0,0)
+```
+
+Si `--max-size` también está especificado, el cambio de tamaño es aplicado después de cortar.
+
+
+#### Fijar la rotación del video
+
+
+Para fijar la rotación de la transmisión:
+
+```bash
+scrcpy --lock-video-orientation 0   # orientación normal
+scrcpy --lock-video-orientation 1   # 90° contrarreloj
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 90° sentido de las agujas del reloj
+```
+
+Esto afecta la rotación de la grabación.
+
+La [ventana también puede ser rotada](#rotación) independientemente.
+
+
+#### Codificador
+
+Algunos dispositivos pueden tener más de una rotación, y algunos pueden causar problemas o errores. Es posible seleccionar un codificador diferente:
+
+```bash
+scrcpy --encoder OMX.qcom.video.encoder.avc
+```
+
+Para listar los codificadores disponibles, puedes pasar un nombre de codificador inválido, el error te dará los codificadores disponibles:
+
+```bash
+scrcpy --encoder _
+```
+
+### Grabación
+
+Es posible grabar la pantalla mientras se transmite:
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+Para grabar sin transmitir la pantalla:
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# interrumpe la grabación con Ctrl+C
+```
+
+"Skipped frames" son grabados, incluso si no son mostrados en tiempo real (por razones de desempeño). Los frames tienen _marcas de tiempo_ en el dispositivo, por lo que el "[packet delay
+variation]" no impacta el archivo grabado.
+
+[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+### Conexión
+
+#### Inalámbrica
+
+_Scrcpy_ usa `adb` para comunicarse con el dispositivo, y `adb` puede [conectarse] vía TCP/IP:
+
+1. Conecta el dispositivo al mismo Wi-Fi que tu computadora.
+2. Obtén la dirección IP del dispositivo, en Ajustes → Acerca del dispositivo → Estado, o ejecutando este comando:
+
+    ```bash
+    adb shell ip route | awk '{print $9}'
+    ```
+
+3. Habilita adb vía TCP/IP en el dispositivo: `adb tcpip 5555`.
+4. Desenchufa el dispositivo.
+5. Conéctate a tu dispositivo: `adb connect IP_DEL_DISPOSITIVO:5555` _(reemplaza `IP_DEL_DISPOSITIVO`)_.
+6. Ejecuta `scrcpy` con normalidad.
+
+Podría resultar útil reducir el bit-rate y la definición:
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # versión breve
+```
+
+[conectarse]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+#### Múltiples dispositivos
+
+Si hay muchos dispositivos listados en `adb devices`, será necesario especificar el _número de serie_:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # versión breve
+```
+
+Si el dispositivo está conectado por TCP/IP:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # versión breve
+```
+
+Puedes iniciar múltiples instancias de _scrcpy_ para múltiples dispositivos.
+
+#### Autoiniciar al detectar dispositivo
+
+Puedes utilizar [AutoAdb]:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### Túnel SSH
+
+Para conectarse a un dispositivo remoto, es posible conectar un cliente local de `adb` a un servidor remoto `adb` (siempre y cuando utilicen la misma versión de protocolos _adb_):
+
+```bash
+adb kill-server    # cierra el servidor local adb en 5037
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# conserva este servidor abierto
+```
+
+Desde otra terminal:
+
+```bash
+scrcpy
+```
+
+Para evitar habilitar "remote port forwarding", puedes forzar una "forward connection" (nótese el argumento `-L` en vez de `-R`):
+
+```bash
+adb kill-server    # cierra el servidor local adb en 5037
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
+# conserva este servidor abierto
+```
+
+Desde otra terminal:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+
+Al igual que las conexiones inalámbricas, puede resultar útil reducir la calidad:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### Configuración de la ventana
+
+#### Título
+
+Por defecto, el título de la ventana es el modelo del dispositivo. Puede ser modificado:
+
+```bash
+scrcpy --window-title 'My device'
+```
+
+#### Posición y tamaño
+
+La posición y tamaño inicial de la ventana puede ser especificado:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### Sin bordes
+
+Para deshabilitar el diseño de la ventana:
+
+```bash
+scrcpy --window-borderless
+```
+
+#### Siempre adelante
+
+Para mantener la ventana de scrcpy siempre adelante:
+
+```bash
+scrcpy --always-on-top
+```
+
+#### Pantalla completa
+
+La aplicación puede ser iniciada en pantalla completa:
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # versión breve
+```
+
+Puede entrar y salir de la pantalla completa con la combinación <kbd>MOD</kbd>+<kbd>f</kbd>.
+
+#### Rotación
+
+Se puede rotar la ventana:
+
+```bash
+scrcpy --rotation 1
+```
+
+Los valores posibles son:
+ - `0`: sin rotación
+ - `1`: 90 grados contrarreloj
+ - `2`: 180 grados
+ - `3`: 90 grados en sentido de las agujas del reloj
+
+La rotación también puede ser modificada con la combinación de teclas <kbd>MOD</kbd>+<kbd>←</kbd> _(izquierda)_ y <kbd>MOD</kbd>+<kbd>→</kbd> _(derecha)_.
+
+Nótese que _scrcpy_ maneja 3 diferentes rotaciones:
+ - <kbd>MOD</kbd>+<kbd>r</kbd> solicita al dispositivo cambiar entre vertical y horizontal (la aplicación en uso puede rechazarlo si no soporta la orientación solicitada).
+ - [`--lock-video-orientation`](#fijar-la-rotación-del-video) cambia la rotación de la transmisión (la orientación del video enviado a la PC). Esto afecta a la grabación.
+ - `--rotation` (o <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>) rota solo el contenido de la imagen. Esto solo afecta a la imagen mostrada, no a la grabación.
+
+
+### Otras opciones menores
+
+#### Solo lectura ("Read-only")
+
+Para deshabilitar los controles (todo lo que interactúe con el dispositivo: eventos del teclado, eventos del mouse, arrastrar y soltar archivos):
+
+```bash
+scrcpy --no-control
+scrcpy -n  # versión breve
+```
+
+#### Pantalla
+
+Si múltiples pantallas están disponibles, es posible elegir cual transmitir:
+
+```bash
+scrcpy --display 1
+```
+
+Los ids de las pantallas se pueden obtener con el siguiente comando:
+
+```bash
+adb shell dumpsys display   # busque "mDisplayId=" en la respuesta
+```
+
+La segunda pantalla solo puede ser manejada si el dispositivo cuenta con Android 10 (en caso contrario será transmitida en el modo solo lectura).
+
+
+#### Permanecer activo
+
+Para evitar que el dispositivo descanse después de un tiempo mientras está conectado:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w  # versión breve
+```
+
+La configuración original se restaura al cerrar scrcpy.
+
+
+#### Apagar la pantalla
+
+Es posible apagar la pantalla mientras se transmite al iniciar con el siguiente comando:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S  # versión breve
+```
+
+O presionando <kbd>MOD</kbd>+<kbd>o</kbd> en cualquier momento.
+
+Para volver a prenderla, presione <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
+
+En Android, el botón de `POWER` siempre prende la pantalla. Por conveniencia, si `POWER` es enviado vía scrcpy (con click-derecho o <kbd>MOD</kbd>+<kbd>p</kbd>), esto forzará a apagar la pantalla con un poco de atraso (en la mejor de las situaciones). El botón físico `POWER` seguirá prendiendo la pantalla.
+
+También puede resultar útil para evitar que el dispositivo entre en inactividad:
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw  # versión breve
+```
+
+
+#### Renderizar frames vencidos
+
+Por defecto, para minimizar la latencia, _scrcpy_ siempre renderiza el último frame disponible decodificado, e ignora cualquier frame anterior.
+
+Para forzar el renderizado de todos los frames (a costo de posible aumento de latencia), use:
+
+```bash
+scrcpy --render-expired-frames
+```
+
+#### Mostrar clicks
+
+Para presentaciones, puede resultar útil mostrar los clicks físicos (en el dispositivo físicamente).
+
+Android provee esta opción en _Opciones para desarrolladores_.
+
+_Scrcpy_ provee una opción para habilitar esta función al iniciar la aplicación y restaurar el valor original al salir:
+
+```bash
+scrcpy --show-touches
+scrcpy -t  # versión breve
+```
+
+Nótese que solo muestra los clicks _físicos_ (con el dedo en el dispositivo).
+
+
+#### Desactivar protector de pantalla
+
+Por defecto, scrcpy no evita que el protector de pantalla se active en la computadora.
+
+Para deshabilitarlo:
+
+```bash
+scrcpy --disable-screensaver
+```
+
+
+### Control
+
+#### Rotar pantalla del dispositivo
+
+Presione <kbd>MOD</kbd>+<kbd>r</kbd> para cambiar entre posición vertical y horizontal.
+
+Nótese que solo rotará si la aplicación activa soporta la orientación solicitada.
+
+#### Copiar y pegar
+
+Cuando que el portapapeles de Android cambia, automáticamente se sincroniza al portapapeles de la computadora.
+
+Cualquier shortcut con <kbd>Ctrl</kbd> es enviado al dispositivo. En particular:
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> normalmente copia
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> normalmente corta
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> normalmente pega (después de la sincronización de portapapeles entre la computadora y el dispositivo)
+
+Esto normalmente funciona como es esperado.
+
+Sin embargo, este comportamiento depende de la aplicación en uso. Por ejemplo, _Termux_ envía SIGINT con <kbd>Ctrl</kbd>+<kbd>c</kbd>, y _K-9 Mail_ crea un nuevo mensaje.
+
+Para copiar, cortar y pegar, en tales casos (solo soportado en Android >= 7):
+ - <kbd>MOD</kbd>+<kbd>c</kbd> inyecta `COPY`
+ - <kbd>MOD</kbd>+<kbd>x</kbd> inyecta `CUT`
+ - <kbd>MOD</kbd>+<kbd>v</kbd> inyecta `PASTE` (después de la sincronización de portapapeles entre la computadora y el dispositivo)
+
+Además, <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> permite inyectar el texto en el portapapeles de la computadora como una secuencia de teclas. Esto es útil cuando el componente no acepta pegado de texto (por ejemplo en _Termux_), pero puede romper caracteres no pertenecientes a ASCII.
+
+**AVISO:** Pegar de la computadora al dispositivo (tanto con <kbd>Ctrl</kbd>+<kbd>v</kbd> o <kbd>MOD</kbd>+<kbd>v</kbd>) copia el contenido al portapapeles del dispositivo. Como consecuencia, cualquier aplicación de Android puede leer su contenido. Debería evitar pegar contenido sensible (como contraseñas) de esta forma.
+
+Algunos dispositivos no se comportan como es esperado al establecer el portapapeles programáticamente. La opción `--legacy-paste` está disponible para cambiar el comportamiento de <kbd>Ctrl</kbd>+<kbd>v</kbd> y <kbd>MOD</kbd>+<kbd>v</kbd> para que también inyecten el texto del portapapeles de la computadora como una secuencia de teclas (de la misma forma que <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>).
+
+#### Pellizcar para zoom
+
+Para simular "pinch-to-zoom": <kbd>Ctrl</kbd>+_click-y-mover_.
+
+Más precisamente, mantén <kbd>Ctrl</kbd> mientras presionas botón izquierdo. Hasta que no se suelte el botón, todos los movimientos del mouse cambiarán el tamaño y rotación del contenido (si es soportado por la app en uso) respecto al centro de la pantalla.
+
+Concretamente, scrcpy genera clicks adicionales con un "dedo virtual" en la posición invertida respecto al centro de la pantalla.
+
+
+#### Preferencias de inyección de texto
+
+Existen dos tipos de [eventos][textevents] generados al escribir texto:
+ - _key events_, marcando si la tecla es presionada o soltada;
+ - _text events_, marcando si un texto fue introducido.
+
+Por defecto, las letras son inyectadas usando _key events_, para que el teclado funcione como es esperado en juegos (típicamente las teclas WASD).
+
+Pero esto puede [causar problemas][prefertext]. Si encuentras tales problemas, los puedes evitar con:
+
+```bash
+scrcpy --prefer-text
+```
+
+(Pero esto romperá el comportamiento del teclado en los juegos)
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### Repetir tecla
+
+Por defecto, mantener una tecla presionada genera múltiples _key events_. Esto puede causar problemas de desempeño en algunos juegos, donde estos eventos no tienen sentido de todos modos.
+
+Para evitar enviar _key events_ repetidos:
+
+```bash
+scrcpy --no-key-repeat
+```
+
+
+#### Botón derecho y botón del medio
+
+Por defecto, botón derecho ejecuta RETROCEDER (o ENCENDIDO) y botón del medio INICIO. Para inhabilitar estos atajos y enviar los clicks al dispositivo:
+
+```bash
+scrcpy --forward-all-clicks
+```
+
+
+### Arrastrar y soltar archivos
+
+#### Instalar APKs
+
+Para instalar un APK, arrastre y suelte el archivo APK (terminado en `.apk`) a la ventana de _scrcpy_.
+
+No hay respuesta visual, un mensaje se escribirá en la consola.
+
+
+#### Enviar archivos al dispositivo
+
+Para enviar un archivo a `/sdcard/` en el dispositivo, arrastre y suelte un archivo (no APK) a la ventana de _scrcpy_.
+
+No hay respuesta visual, un mensaje se escribirá en la consola.
+
+El directorio de destino puede ser modificado al iniciar:
+
+```bash
+scrcpy --push-target=/sdcard/Download/
+```
+
+
+### Envío de Audio
+
+_Scrcpy_ no envía el audio. Use [sndcpy].
+
+También lea [issue #14].
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+
+## Atajos
+
+En la siguiente lista, <kbd>MOD</kbd> es el atajo modificador. Por defecto es <kbd>Alt</kbd> (izquierdo) o <kbd>Super</kbd> (izquierdo).
+
+Se puede modificar usando `--shortcut-mod`. Las posibles teclas son `lctrl` (izquierdo), `rctrl` (derecho), `lalt` (izquierdo), `ralt` (derecho), `lsuper` (izquierdo) y `rsuper` (derecho). Por ejemplo:
+
+```bash
+# use RCtrl para los atajos
+scrcpy --shortcut-mod=rctrl
+
+# use tanto LCtrl+LAlt o LSuper para los atajos
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_<kbd>[Super]</kbd> es generalmente la tecla <kbd>Windows</kbd> o <kbd>Cmd</kbd>._
+
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
+ | Acción                                      |   Atajo
+ | ------------------------------------------- |:-----------------------------
+ | Alterne entre pantalla compelta             | <kbd>MOD</kbd>+<kbd>f</kbd>
+ | Rotar pantalla hacia la izquierda           | <kbd>MOD</kbd>+<kbd>←</kbd> _(izquierda)_
+ | Rotar pantalla hacia la derecha             | <kbd>MOD</kbd>+<kbd>→</kbd> _(derecha)_
+ | Ajustar ventana a 1:1 ("pixel-perfect")     | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | Ajustar ventana para quitar los bordes negros| <kbd>MOD</kbd>+<kbd>w</kbd> \| _Doble click¹_
+ | Click en `INICIO`                           | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Botón del medio_
+ | Click en `RETROCEDER`                       | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Botón derecho²_
+ | Click en `CAMBIAR APLICACIÓN`               | <kbd>MOD</kbd>+<kbd>s</kbd>
+ | Click en `MENÚ` (desbloquear pantalla)      | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | Click en `SUBIR VOLUMEN`                    | <kbd>MOD</kbd>+<kbd>↑</kbd> _(arriba)_
+ | Click en `BAJAR VOLUME`                     | <kbd>MOD</kbd>+<kbd>↓</kbd> _(abajo)_
+ | Click en `ENCENDIDO`                        | <kbd>MOD</kbd>+<kbd>p</kbd>
+ | Encendido                                   | _Botón derecho²_
+ | Apagar pantalla (manteniendo la transmisión)| <kbd>MOD</kbd>+<kbd>o</kbd>
+ | Encender pantalla                           | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
+ | Rotar pantalla del dispositivo              | <kbd>MOD</kbd>+<kbd>r</kbd>
+ | Abrir panel de notificaciones               | <kbd>MOD</kbd>+<kbd>n</kbd>
+ | Cerrar panel de notificaciones              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | Copiar al portapapeles³                     | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | Cortar al portapapeles³                     | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | Synchronizar portapapeles y pegar³          | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | inyectar texto del portapapeles de la PC    | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
+ | Habilitar/Deshabilitar contador de FPS (en stdout)      | <kbd>MOD</kbd>+<kbd>i</kbd>
+ | Pellizcar para zoom                         | <kbd>Ctrl</kbd>+_click-y-mover_
+
+_¹Doble click en los bordes negros para eliminarlos._  
+_²Botón derecho enciende la pantalla si estaba apagada, sino ejecuta RETROCEDER._  
+_³Solo en Android >= 7._
+
+Todos los atajos <kbd>Ctrl</kbd>+_tecla_ son enviados al dispositivo para que sean manejados por la aplicación activa.
+
+
+## Path personalizado
+
+Para usar un binario de _adb_ en particular, configure el path `ADB` en las variables de entorno:
+
+```bash
+ADB=/path/to/adb scrcpy
+```
+
+Para sobreescribir el path del archivo `scrcpy-server`, configure el path en `SCRCPY_SERVER_PATH`.
+
+
+## ¿Por qué _scrcpy_?
+
+Un colega me retó a encontrar un nombre tan impronunciable como [gnirehtet].
+
+[`strcpy`] copia un **str**ing; `scrcpy` copia un **scr**een.
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+## ¿Cómo construir (BUILD)?
+
+Véase [BUILD] (en inglés).
+
+
+## Problemas generales
+
+Vea las [preguntas frecuentes (en inglés)](FAQ.md).
+
+
+## Desarrolladores
+
+Lea la [hoja de desarrolladores (en inglés)](DEVELOP.md).
+
+
+## Licencia
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## Artículos
+
+- [Introducing scrcpy][article-intro] (en inglés)
+- [Scrcpy now works wirelessly][article-tcpip] (en inglés)
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/

README.tr.md

@@ -0,0 +1,824 @@
+# scrcpy (v1.18)
+
+Bu uygulama Android cihazların USB (ya da [TCP/IP][article-tcpip]) üzerinden
+görüntülenmesini ve kontrol edilmesini sağlar. _root_ erişimine ihtiyaç duymaz.
+_GNU/Linux_, _Windows_ ve _macOS_ sistemlerinde çalışabilir.
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+Öne çıkan özellikler:
+
+- **hafiflik** (doğal, sadece cihazın ekranını gösterir)
+- **performans** (30~60fps)
+- **kalite** (1920×1080 ya da üzeri)
+- **düşük gecikme süresi** ([35~70ms][lowlatency])
+- **düşük başlangıç süresi** (~1 saniye ilk kareyi gösterme süresi)
+- **müdaheleci olmama** (cihazda kurulu yazılım kalmaz)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+## Gereksinimler
+
+Android cihaz en düşük API 21 (Android 5.0) olmalıdır.
+
+[Adb hata ayıklamasının][enable-adb] cihazınızda aktif olduğundan emin olun.
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+Bazı cihazlarda klavye ve fare ile kontrol için [ilave bir seçenek][control] daha
+etkinleştirmeniz gerekebilir.
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+## Uygulamayı indirin
+
+<a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
+
+### Özet
+
+- Linux: `apt install scrcpy`
+- Windows: [indir][direct-win64]
+- macOS: `brew install scrcpy`
+
+Kaynak kodu derle: [BUILD] ([basitleştirilmiş süreç][build_simple])
+
+[build]: BUILD.md
+[build_simple]: BUILD.md#simple
+
+### Linux
+
+Debian (şimdilik _testing_ ve _sid_) ve Ubuntu (20.04) için:
+
+```
+apt install scrcpy
+```
+
+[Snap] paketi: [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+Fedora için, [COPR] paketi: [`scrcpy`][copr-link].
+
+[copr]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+Arch Linux için, [AUR] paketi: [`scrcpy`][aur-link].
+
+[aur]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+Gentoo için, [Ebuild] mevcut: [`scrcpy/`][ebuild-link].
+
+[ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+Ayrıca [uygulamayı el ile de derleyebilirsiniz][build] ([basitleştirilmiş süreç][build_simple]).
+
+### Windows
+
+Windows için (`adb` dahil) tüm gereksinimleri ile derlenmiş bir arşiv mevcut:
+
+ - [README](README.md#windows)
+
+[Chocolatey] ile kurulum:
+
+[chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # if you don't have it yet
+```
+
+[Scoop] ile kurulum:
+
+```bash
+scoop install scrcpy
+scoop install adb    # if you don't have it yet
+```
+
+[scoop]: https://scoop.sh
+
+Ayrıca [uygulamayı el ile de derleyebilirsiniz][build].
+
+### macOS
+
+Uygulama [Homebrew] içerisinde mevcut. Sadece kurun:
+
+[homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+`adb`, `PATH` içerisinden erişilebilir olmalıdır. Eğer değilse:
+
+```bash
+brew install android-platform-tools
+```
+
+[MacPorts] kullanılarak adb ve uygulamanın birlikte kurulumu yapılabilir:
+
+```bash
+sudo port install scrcpy
+```
+
+[macports]: https://www.macports.org/
+
+Ayrıca [uygulamayı el ile de derleyebilirsiniz][build].
+
+## Çalıştırma
+
+Android cihazınızı bağlayın ve aşağıdaki komutu çalıştırın:
+
+```bash
+scrcpy
+```
+
+Komut satırı argümanları aşağıdaki komut ile listelenebilir:
+
+```bash
+scrcpy --help
+```
+
+## Özellikler
+
+### Ekran yakalama ayarları
+
+#### Boyut azaltma
+
+Bazen, Android cihaz ekranını daha düşük seviyede göstermek performansı artırabilir.
+
+Hem genişliği hem de yüksekliği bir değere sabitlemek için (ör. 1024):
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # kısa versiyon
+```
+
+Diğer boyut en-boy oranı korunacak şekilde hesaplanır.
+Bu şekilde ekran boyutu 1920x1080 olan bir cihaz 1024x576 olarak görünür.
+
+#### Bit-oranı değiştirme
+
+Varsayılan bit-oranı 8 Mbps'dir. Değiştirmek için (ör. 2 Mbps):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # kısa versiyon
+```
+
+#### Çerçeve oranı sınırlama
+
+Ekran yakalama için maksimum çerçeve oranı için sınır koyulabilir:
+
+```bash
+scrcpy --max-fps 15
+```
+
+Bu özellik Android 10 ve sonrası sürümlerde resmi olarak desteklenmektedir,
+ancak daha önceki sürümlerde çalışmayabilir.
+
+#### Kesme
+
+Cihaz ekranının sadece bir kısmı görünecek şekilde kesilebilir.
+
+Bu özellik Oculus Go'nun bir gözünü yakalamak gibi durumlarda kullanışlı olur:
+
+```bash
+scrcpy --crop 1224:1440:0:0   # (0,0) noktasından 1224x1440
+```
+
+Eğer `--max-size` belirtilmişse yeniden boyutlandırma kesme işleminden sonra yapılır.
+
+#### Video yönünü kilitleme
+
+Videonun yönünü kilitlemek için:
+
+```bash
+scrcpy --lock-video-orientation     # başlangıç yönü
+scrcpy --lock-video-orientation=0   # doğal yön
+scrcpy --lock-video-orientation=1   # 90° saatin tersi yönü
+scrcpy --lock-video-orientation=2   # 180°
+scrcpy --lock-video-orientation=3   # 90° saat yönü
+```
+
+Bu özellik kaydetme yönünü de etkiler.
+
+[Pencere ayrı olarak döndürülmüş](#rotation) olabilir.
+
+#### Kodlayıcı
+
+Bazı cihazlar birden fazla kodlayıcıya sahiptir, ve bunların bazıları programın
+kapanmasına sebep olabilir. Bu durumda farklı bir kodlayıcı seçilebilir:
+
+```bash
+scrcpy --encoder OMX.qcom.video.encoder.avc
+```
+
+Mevcut kodlayıcıları listelemek için geçerli olmayan bir kodlayıcı ismi girebilirsiniz,
+hata mesajı mevcut kodlayıcıları listeleyecektir:
+
+```bash
+scrcpy --encoder _
+```
+
+### Yakalama
+
+#### Kaydetme
+
+Ekran yakalama sırasında kaydedilebilir:
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+Yakalama olmadan kayıt için:
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# Ctrl+C ile kayıt kesilebilir
+```
+
+"Atlanan kareler" gerçek zamanlı olarak gösterilmese (performans sebeplerinden ötürü) dahi kaydedilir.
+Kareler cihazda _zamandamgası_ ile saklanır, bu sayede [paket gecikme varyasyonu]
+kayıt edilen dosyayı etkilemez.
+
+[paket gecikme varyasyonu]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+#### v4l2loopback
+
+Linux'ta video akışı bir v4l2 loopback cihazına gönderilebilir. Bu sayede Android
+cihaz bir web kamerası gibi davranabilir.
+
+Bu işlem için `v4l2loopback` modülü kurulu olmalıdır:
+
+```bash
+sudo apt install v4l2loopback-dkms
+```
+
+v4l2 cihazı oluşturmak için:
+
+```bash
+sudo modprobe v4l2loopback
+```
+
+Bu komut `/dev/videoN` adresinde `N` yerine bir tamsayı koyarak yeni bir video
+cihazı oluşturacaktır.
+(birden fazla cihaz oluşturmak veya spesifik ID'ye sahip cihazlar için
+diğer [seçenekleri](https://github.com/umlaeute/v4l2loopback#options) inceleyebilirsiniz.)
+
+Aktif cihazları listelemek için:
+
+```bash
+# v4l-utils paketi ile
+v4l2-ctl --list-devices
+
+# daha basit ama yeterli olabilecek şekilde
+ls /dev/video*
+```
+
+v4l2 kullanarak scrpy kullanmaya başlamak için:
+
+```bash
+scrcpy --v4l2-sink=/dev/videoN
+scrcpy --v4l2-sink=/dev/videoN --no-display  # ayna penceresini kapatarak
+scrcpy --v4l2-sink=/dev/videoN -N            # kısa versiyon
+```
+
+(`N` harfini oluşturulan cihaz ID numarası ile değiştirin. `ls /dev/video*` cihaz ID'lerini görebilirsiniz.)
+
+Aktifleştirildikten sonra video akışını herhangi bir v4l2 özellikli araçla açabilirsiniz:
+
+```bash
+ffplay -i /dev/videoN
+vlc v4l2:///dev/videoN   # VLC kullanırken yükleme gecikmesi olabilir
+```
+
+Örneğin, [OBS] ile video akışını kullanabilirsiniz.
+
+[obs]: https://obsproject.com/
+
+### Bağlantı
+
+#### Kablosuz
+
+_Scrcpy_ cihazla iletişim kurmak için `adb`'yi kullanır, Ve `adb`
+bir cihaza TCP/IP kullanarak [bağlanabilir].
+
+1. Cihazınızı bilgisayarınızla aynı Wi-Fi ağına bağlayın.
+2. Cihazınızın IP adresini bulun. Ayarlar → Telefon Hakkında → Durum sekmesinden veya
+   aşağıdaki komutu çalıştırarak öğrenebilirsiniz:
+
+   ```bash
+   adb shell ip route | awk '{print $9}'
+   ```
+
+3. Cihazınızda TCP/IP üzerinden adb kullanımını etkinleştirin: `adb tcpip 5555`.
+4. Cihazınızı bilgisayarınızdan sökün.
+5. Cihazınıza bağlanın: `adb connect DEVICE_IP:5555` _(`DEVICE_IP` değerini değiştirin)_.
+6. `scrcpy` komutunu normal olarak çalıştırın.
+
+Bit-oranını ve büyüklüğü azaltmak yararlı olabilir:
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # kısa version
+```
+
+[bağlanabilir]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+#### Birden fazla cihaz
+
+Eğer `adb devices` komutu birden fazla cihaz listeliyorsa _serial_ değerini belirtmeniz gerekir:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # kısa versiyon
+```
+
+Eğer cihaz TCP/IP üzerinden bağlanmışsa:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # kısa version
+```
+
+Birden fazla cihaz için birden fazla _scrcpy_ uygulaması çalıştırabilirsiniz.
+
+#### Cihaz bağlantısı ile otomatik başlatma
+
+[AutoAdb] ile yapılabilir:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[autoadb]: https://github.com/rom1v/autoadb
+
+#### SSH Tünel
+
+Uzaktaki bir cihaza erişmek için lokal `adb` istemcisi, uzaktaki bir `adb` sunucusuna
+(aynı _adb_ sürümünü kullanmak şartı ile) bağlanabilir :
+
+```bash
+adb kill-server    # 5037 portunda çalışan lokal adb sunucusunu kapat
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# bunu açık tutun
+```
+
+Başka bir terminalde:
+
+```bash
+scrcpy
+```
+
+Uzaktan port yönlendirme ileri yönlü bağlantı kullanabilirsiniz
+(`-R` yerine `-L` olduğuna dikkat edin):
+
+```bash
+adb kill-server    # 5037 portunda çalışan lokal adb sunucusunu kapat
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
+# bunu açık tutun
+```
+
+Başka bir terminalde:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+Kablosuz bağlantı gibi burada da kalite düşürmek faydalı olabilir:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### Pencere ayarları
+
+#### İsim
+
+Cihaz modeli varsayılan pencere ismidir. Değiştirmek için:
+
+```bash
+scrcpy --window-title 'Benim cihazım'
+```
+
+#### Konum ve
+
+Pencerenin başlangıç konumu ve boyutu belirtilebilir:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### Kenarlıklar
+
+Pencere dekorasyonunu kapatmak için:
+
+```bash
+scrcpy --window-borderless
+```
+
+#### Her zaman üstte
+
+Scrcpy penceresini her zaman üstte tutmak için:
+
+```bash
+scrcpy --always-on-top
+```
+
+#### Tam ekran
+
+Uygulamayı tam ekran başlatmak için:
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # kısa versiyon
+```
+
+Tam ekran <kbd>MOD</kbd>+<kbd>f</kbd> ile dinamik olarak değiştirilebilir.
+
+#### Döndürme
+
+Pencere döndürülebilir:
+
+```bash
+scrcpy --rotation 1
+```
+
+Seçilebilecek değerler:
+
+- `0`: döndürme yok
+- `1`: 90 derece saat yönünün tersi
+- `2`: 180 derece
+- `3`: 90 derece saat yönü
+
+Döndürme <kbd>MOD</kbd>+<kbd>←</kbd>_(sol)_ ve
+<kbd>MOD</kbd>+<kbd>→</kbd> _(sağ)_ ile dinamik olarak değiştirilebilir.
+
+_scrcpy_'de 3 farklı döndürme olduğuna dikkat edin:
+
+- <kbd>MOD</kbd>+<kbd>r</kbd> cihazın yatay veya dikey modda çalışmasını sağlar.
+  (çalışan uygulama istenilen oryantasyonda çalışmayı desteklemiyorsa döndürme
+  işlemini reddedebilir.)
+- [`--lock-video-orientation`](#lock-video-orientation) görüntü yakalama oryantasyonunu
+  (cihazdan bilgisayara gelen video akışının oryantasyonu) değiştirir. Bu kayıt işlemini
+  etkiler.
+- `--rotation` (or <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>)
+  pencere içeriğini dönderir. Bu sadece canlı görüntüyü etkiler, kayıt işlemini etkilemez.
+
+### Diğer ekran yakalama seçenekleri
+
+#### Yazma korumalı
+
+Kontrolleri devre dışı bırakmak için (cihazla etkileşime geçebilecek her şey: klavye ve
+fare girdileri, dosya sürükleyip bırakma):
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+#### Ekran
+
+Eğer cihazın birden fazla ekranı varsa hangi ekranın kullanılacağını seçebilirsiniz:
+
+```bash
+scrcpy --display 1
+```
+
+Kullanılabilecek ekranları listelemek için:
+
+```bash
+adb shell dumpsys display   # çıktı içerisinde "mDisplayId=" terimini arayın
+```
+
+İkinci ekran ancak cihaz Android sürümü 10 veya üzeri olmalıdır (değilse yazma korumalı
+olarak görüntülenir).
+
+#### Uyanık kalma
+
+Cihazın uyku moduna girmesini engellemek için:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+scrcpy kapandığında cihaz başlangıç durumuna geri döner.
+
+#### Ekranı kapatma
+
+Ekran yakalama sırasında cihazın ekranı kapatılabilir:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+Ya da <kbd>MOD</kbd>+<kbd>o</kbd> kısayolunu kullanabilirsiniz.
+
+Tekrar açmak için ise <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd> tuşlarına basın.
+
+Android'de, `GÜÇ` tuşu her zaman ekranı açar. Eğer `GÜÇ` sinyali scrcpy ile
+gönderilsiyse (sağ tık veya <kbd>MOD</kbd>+<kbd>p</kbd>), ekran kısa bir gecikme
+ile kapanacaktır. Fiziksel `GÜÇ` tuşuna basmak hala ekranın açılmasına sebep olacaktır.
+
+Bu cihazın uykuya geçmesini engellemek için kullanılabilir:
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+#### Dokunuşları gösterme
+
+Sunumlar sırasında fiziksel dokunuşları (fiziksel cihazdaki) göstermek
+faydalı olabilir.
+
+Android'de bu özellik _Geliştici seçenekleri_ içerisinde bulunur.
+
+_Scrcpy_ bu özelliği çalışırken etkinleştirebilir ve kapanırken eski
+haline geri getirebilir:
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+Bu opsiyon sadece _fiziksel_ dokunuşları (cihaz ekranındaki) gösterir.
+
+#### Ekran koruyucuyu devre dışı bırakma
+
+Scrcpy varsayılan ayarlarında ekran koruyucuyu devre dışı bırakmaz.
+
+Bırakmak için:
+
+```bash
+scrcpy --disable-screensaver
+```
+
+### Girdi kontrolü
+
+#### Cihaz ekranını dönderme
+
+<kbd>MOD</kbd>+<kbd>r</kbd> tuşları ile yatay ve dikey modlar arasında
+geçiş yapabilirsiniz.
+
+Bu kısayol ancak çalışan uygulama desteklediği takdirde ekranı döndürecektir.
+
+#### Kopyala yapıştır
+
+Ne zaman Android cihazdaki pano değişse bilgisayardaki pano otomatik olarak
+senkronize edilir.
+
+Tüm <kbd>Ctrl</kbd> kısayolları cihaza iletilir:
+
+- <kbd>Ctrl</kbd>+<kbd>c</kbd> genelde kopyalar
+- <kbd>Ctrl</kbd>+<kbd>x</kbd> genelde keser
+- <kbd>Ctrl</kbd>+<kbd>v</kbd> genelde yapıştırır (bilgisayar ve cihaz arasındaki
+  pano senkronizasyonundan sonra)
+
+Bu kısayollar genelde beklediğiniz gibi çalışır.
+
+Ancak kısayolun gerçekten yaptığı eylemi açık olan uygulama belirler.
+Örneğin, _Termux_ <kbd>Ctrl</kbd>+<kbd>c</kbd> ile kopyalama yerine
+SIGINT sinyali gönderir, _K-9 Mail_ ise yeni mesaj oluşturur.
+
+Bu tip durumlarda kopyalama, kesme ve yapıştırma için (Android versiyon 7 ve
+üstü):
+
+- <kbd>MOD</kbd>+<kbd>c</kbd> `KOPYALA`
+- <kbd>MOD</kbd>+<kbd>x</kbd> `KES`
+- <kbd>MOD</kbd>+<kbd>v</kbd> `YAPIŞTIR` (bilgisayar ve cihaz arasındaki
+  pano senkronizasyonundan sonra)
+
+Bunlara ek olarak, <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> tuşları
+bilgisayar pano içeriğini tuş basma eylemleri şeklinde gönderir. Bu metin
+yapıştırmayı desteklemeyen (_Termux_ gibi) uygulamar için kullanışlıdır,
+ancak ASCII olmayan içerikleri bozabilir.
+
+**UYARI:** Bilgisayar pano içeriğini cihaza yapıştırmak
+(<kbd>Ctrl</kbd>+<kbd>v</kbd> ya da <kbd>MOD</kbd>+<kbd>v</kbd> tuşları ile)
+içeriği cihaz panosuna kopyalar. Sonuç olarak, herhangi bir Android uygulaması
+içeriğe erişebilir. Hassas içerikler (parolalar gibi) için bu özelliği kullanmaktan
+kaçının.
+
+Bazı cihazlar pano değişikleri konusunda beklenilen şekilde çalışmayabilir.
+Bu durumlarda `--legacy-paste` argümanı kullanılabilir. Bu sayede
+<kbd>Ctrl</kbd>+<kbd>v</kbd> ve <kbd>MOD</kbd>+<kbd>v</kbd> tuşları da
+pano içeriğini tuş basma eylemleri şeklinde gönderir
+(<kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> ile aynı şekilde).
+
+#### İki parmak ile yakınlaştırma
+
+"İki parmak ile yakınlaştırma" için: <kbd>Ctrl</kbd>+_tıkla-ve-sürükle_.
+
+Daha açıklayıcı şekilde, <kbd>Ctrl</kbd> tuşuna sol-tık ile birlikte basılı
+tutun. Sol-tık serbest bırakılıncaya kadar yapılan tüm fare hareketleri
+ekran içeriğini ekranın merkezini baz alarak dönderir, büyütür veya küçültür
+(eğer uygulama destekliyorsa).
+
+Scrcpy ekranın merkezinde bir "sanal parmak" varmış gibi davranır.
+
+#### Metin gönderme tercihi
+
+Metin girilirken ili çeşit [eylem][textevents] gerçekleştirilir:
+
+- _tuş eylemleri_, bir tuşa basıldığı sinyalini verir;
+- _metin eylemleri_, bir metin girildiği sinyalini verir.
+
+Varsayılan olarak, harfler tuş eylemleri kullanılarak gönderilir. Bu sayede
+klavye oyunlarda beklenilene uygun olarak çalışır (Genelde WASD tuşları).
+
+Ancak bu [bazı problemlere][prefertext] yol açabilir. Eğer bu problemler ile
+karşılaşırsanız metin eylemlerini tercih edebilirsiniz:
+
+```bash
+scrcpy --prefer-text
+```
+
+(Ama bu oyunlardaki klavye davranışlarını bozacaktır)
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+#### Tuş tekrarı
+
+Varsayılan olarak, bir tuşa basılı tutmak tuş eylemini tekrarlar. Bu durum
+bazı oyunlarda problemlere yol açabilir.
+
+Tuş eylemlerinin tekrarını kapatmak için:
+
+```bash
+scrcpy --no-key-repeat
+```
+
+#### Sağ-tık ve Orta-tık
+
+Varsayılan olarak, sağ-tık GERİ (ya da GÜÇ açma) eylemlerini, orta-tık ise
+ANA EKRAN eylemini tetikler. Bu kısayolları devre dışı bırakmak için:
+
+```bash
+scrcpy --forward-all-clicks
+```
+
+### Dosya bırakma
+
+#### APK kurulumu
+
+APK kurmak için, bilgisayarınızdaki APK dosyasını (`.apk` ile biten) _scrcpy_
+penceresine sürükleyip bırakın.
+
+Bu eylem görsel bir geri dönüt oluşturmaz, konsola log yazılır.
+
+#### Dosyayı cihaza gönderme
+
+Bir dosyayı cihazdaki `/sdcard/Download/` dizinine atmak için, (APK olmayan)
+bir dosyayı _scrcpy_ penceresine sürükleyip bırakın.
+
+Bu eylem görsel bir geri dönüt oluşturmaz, konsola log yazılır.
+
+Hedef dizin uygulama başlatılırken değiştirilebilir:
+
+```bash
+scrcpy --push-target=/sdcard/Movies/
+```
+
+### Ses iletimi
+
+_Scrcpy_ ses iletimi yapmaz. Yerine [sndcpy] kullanabilirsiniz.
+
+Ayrıca bakınız [issue #14].
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+## Kısayollar
+
+Aşağıdaki listede, <kbd>MOD</kbd> kısayol tamamlayıcısıdır. Varsayılan olarak
+(sol) <kbd>Alt</kbd> veya (sol) <kbd>Super</kbd> tuşudur.
+
+Bu tuş `--shortcut-mod` argümanı kullanılarak `lctrl`, `rctrl`,
+`lalt`, `ralt`, `lsuper` ve `rsuper` tuşlarından biri ile değiştirilebilir.
+Örneğin:
+
+```bash
+# Sağ Ctrl kullanmak için
+scrcpy --shortcut-mod=rctrl
+
+# Sol Ctrl, Sol Alt veya Sol Super tuşlarından birini kullanmak için
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_<kbd>[Super]</kbd> tuşu genelde <kbd>Windows</kbd> veya <kbd>Cmd</kbd> tuşudur._
+
+[super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
+| Action                                           | Shortcut                                                  |
+| ------------------------------------------------ | :-------------------------------------------------------- |
+| Tam ekran modunu değiştirme                      | <kbd>MOD</kbd>+<kbd>f</kbd>                               |
+| Ekranı sola çevirme                              | <kbd>MOD</kbd>+<kbd>←</kbd> _(sol)_                       |
+| Ekranı sağa çevirme                              | <kbd>MOD</kbd>+<kbd>→</kbd> _(sağ)_                       |
+| Pencereyi 1:1 oranına çevirme (pixel-perfect)    | <kbd>MOD</kbd>+<kbd>g</kbd>                               |
+| Penceredeki siyah kenarlıkları kaldırma          | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Çift-sol-tık¹_            |
+| `ANA EKRAN` tuşu                                 | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Orta-tık_                 |
+| `GERİ` tuşu                                      | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Sağ-tık²_                 |
+| `UYGULAMA_DEĞİŞTİR` tuşu                         | <kbd>MOD</kbd>+<kbd>s</kbd> \| _4.tık³_                   |
+| `MENÜ` tuşu (ekran kilidini açma)                | <kbd>MOD</kbd>+<kbd>m</kbd>                               |
+| `SES_AÇ` tuşu                                    | <kbd>MOD</kbd>+<kbd>↑</kbd> _(yukarı)_                    |
+| `SES_KIS` tuşu                                   | <kbd>MOD</kbd>+<kbd>↓</kbd> _(aşağı)_                     |
+| `GÜÇ` tuşu                                       | <kbd>MOD</kbd>+<kbd>p</kbd>                               |
+| Gücü açma                                        | _Sağ-tık²_                                                |
+| Cihaz ekranını kapatma (ekran yakalama durmadan) | <kbd>MOD</kbd>+<kbd>o</kbd>                               |
+| Cihaz ekranını açma                              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>              |
+| Cihaz ekranını dönderme                          | <kbd>MOD</kbd>+<kbd>r</kbd>                               |
+| Bildirim panelini genişletme                     | <kbd>MOD</kbd>+<kbd>n</kbd> \| _5.tık³_                   |
+| Ayarlar panelini genişletme                      | <kbd>MOD</kbd>+<kbd>n</kbd>+<kbd>n</kbd> \| _Çift-5.tık³_ |
+| Panelleri kapatma                                | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>              |
+| Panoya kopyalama⁴                                | <kbd>MOD</kbd>+<kbd>c</kbd>                               |
+| Panoya kesme⁴                                    | <kbd>MOD</kbd>+<kbd>x</kbd>                               |
+| Panoları senkronize ederek yapıştırma⁴           | <kbd>MOD</kbd>+<kbd>v</kbd>                               |
+| Bilgisayar panosundaki metini girme              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>              |
+| FPS sayacını açma/kapatma (terminalde)           | <kbd>MOD</kbd>+<kbd>i</kbd>                               |
+| İki parmakla yakınlaştırma                       | <kbd>Ctrl</kbd>+_tıkla-ve-sürükle_                        |
+
+_¹Siyah kenarlıkları silmek için üzerine çift tıklayın._  
+_²Sağ-tık ekran kapalıysa açar, değilse GERİ sinyali gönderir._  
+_³4. ve 5. fare tuşları (eğer varsa)._  
+_⁴Sadece Android 7 ve üzeri versiyonlarda._
+
+Tekrarlı tuşu olan kısayollar tuş bırakılıp tekrar basılarak tekrar çalıştırılır.
+Örneğin, "Ayarlar panelini genişletmek" için:
+
+1.  <kbd>MOD</kbd> tuşuna basın ve basılı tutun.
+2.  <kbd>n</kbd> tuşuna iki defa basın.
+3.  <kbd>MOD</kbd> tuşuna basmayı bırakın.
+
+Tüm <kbd>Ctrl</kbd>+_tuş_ kısayolları cihaza gönderilir. Bu sayede istenilen komut
+uygulama tarafından çalıştırılır.
+
+## Özel dizinler
+
+Varsayılandan farklı bir _adb_ programı çalıştırmak için `ADB` ortam değişkenini
+ayarlayın:
+
+```bash
+ADB=/path/to/adb scrcpy
+```
+
+`scrcpy-server` programının dizinini değiştirmek için `SCRCPY_SERVER_PATH`
+değişkenini ayarlayın.
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+## Neden _scrcpy_?
+
+Bir meslektaşım [gnirehtet] gibi söylenmesi zor bir isim bulmam için bana meydan okudu.
+
+[`strcpy`] **str**ing kopyalıyor; `scrcpy` **scr**een kopyalıyor.
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+## Nasıl derlenir?
+
+Bakınız [BUILD].
+
+## Yaygın problemler
+
+Bakınız [FAQ](FAQ.md).
+
+## Geliştiriciler
+
+[Geliştiriciler sayfası]nı okuyun.
+
+[geliştiriciler sayfası]: DEVELOP.md
+
+## Lisans
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## Makaleler
+
+- [Introducing scrcpy][article-intro]
+- [Scrcpy now works wirelessly][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/

README.zh-Hans.md

@@ -0,0 +1,732 @@
+_Only the original [README](README.md) is guaranteed to be up-to-date._
+
+只有原版的[README](README.md)会保持最新。
+
+本文根据[ed130e05]进行翻译。
+
+[ed130e05]: https://github.com/Genymobile/scrcpy/blob/ed130e05d55615d6014d93f15cfcb92ad62b01d8/README.md
+
+# scrcpy (v1.17)
+
+本应用程序可以显示并控制通过 USB (或 [TCP/IP][article-tcpip]) 连接的安卓设备，且不需要任何 _root_ 权限。本程序支持 _GNU/Linux_, _Windows_ 和 _macOS_。
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+它专注于：
+
+ - **轻量** (原生，仅显示设备屏幕)
+ - **性能** (30~60fps)
+ - **质量** (分辨率可达 1920×1080 或更高)
+ - **低延迟** ([35~70ms][lowlatency])
+ - **快速启动** (最快 1 秒内即可显示第一帧)
+ - **无侵入性** (不会在设备上遗留任何程序)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## 系统要求
+
+安卓设备最低需要支持 API 21 (Android 5.0)。
+
+确保设备已[开启 adb 调试][enable-adb]。
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+在某些设备上，还需要开启[额外的选项][control]以使用鼠标和键盘进行控制。
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## 获取本程序
+
+<a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
+
+### Linux
+
+在 Debian (目前仅支持 _testing_ 和 _sid_ 分支) 和Ubuntu (20.04) 上：
+
+```
+apt install scrcpy
+```
+
+我们也提供 [Snap] 包： [`scrcpy`][snap-link]。
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+对 Fedora 我们提供 [COPR] 包： [`scrcpy`][copr-link]。
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+对 Arch Linux 我们提供 [AUR] 包： [`scrcpy`][aur-link]。
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+对 Gentoo 我们提供 [Ebuild] 包：[`scrcpy/`][ebuild-link]。
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+您也可以[自行构建][BUILD] (不必担心，这并不困难)。
+
+
+
+### Windows
+
+在 Windows 上，简便起见，我们提供包含了所有依赖 (包括 `adb`) 的预编译包。
+
+ - [README](README.md#windows)
+
+也可以使用 [Chocolatey]：
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # 如果还没有 adb
+```
+
+或者 [Scoop]:
+
+```bash
+scoop install scrcpy
+scoop install adb    # 如果还没有 adb
+```
+
+[Scoop]: https://scoop.sh
+
+您也可以[自行构建][BUILD]。
+
+
+### macOS
+
+本程序已发布到 [Homebrew]。直接安装即可：
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+你还需要在 `PATH` 内有 `adb`。如果还没有：
+
+```bash
+# Homebrew >= 2.6.0
+brew install --cask android-platform-tools
+
+# Homebrew < 2.6.0
+brew cask install android-platform-tools
+```
+
+您也可以[自行构建][BUILD]。
+
+
+## 运行
+
+连接安卓设备，然后执行：
+
+```bash
+scrcpy
+```
+
+本程序支持命令行参数，查看参数列表：
+
+```bash
+scrcpy --help
+```
+
+## 功能介绍
+
+### 捕获设置
+
+#### 降低分辨率
+
+有时候，可以通过降低镜像的分辨率来提高性能。
+
+要同时限制宽度和高度到某个值 (例如 1024)：
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # 简写
+```
+
+另一边会被按比例缩小以保持设备的显示比例。这样，1920×1080 分辨率的设备会以 1024×576 的分辨率进行镜像。
+
+
+#### 修改码率
+
+默认码率是 8Mbps。要改变视频的码率 (例如改为 2Mbps)：
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # 简写
+```
+
+#### 限制帧率
+
+要限制捕获的帧率：
+
+```bash
+scrcpy --max-fps 15
+```
+
+本功能从 Android 10 开始才被官方支持，但在一些旧版本中也能生效。
+
+#### 画面裁剪
+
+可以对设备屏幕进行裁剪，只镜像屏幕的一部分。
+
+例如可以只镜像 Oculus Go 的一只眼睛。
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 以 (0,0) 为原点的 1224x1440 像素
+```
+
+如果同时指定了 `--max-size`，会先进行裁剪，再进行缩放。
+
+
+#### 锁定屏幕方向
+
+
+要锁定镜像画面的方向：
+
+```bash
+scrcpy --lock-video-orientation 0   # 自然方向
+scrcpy --lock-video-orientation 1   # 逆时针旋转 90°
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 顺时针旋转 90°
+```
+
+只影响录制的方向。
+
+[窗口可以独立旋转](#旋转)。
+
+
+#### 编码器
+
+一些设备内置了多种编码器，但是有的编码器会导致问题或崩溃。可以手动选择其它编码器：
+
+```bash
+scrcpy --encoder OMX.qcom.video.encoder.avc
+```
+
+要列出可用的编码器，可以指定一个不存在的编码器名称，错误信息中会包含所有的编码器：
+
+```bash
+scrcpy --encoder _
+```
+
+### 屏幕录制
+
+可以在镜像的同时录制视频：
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+仅录制，不显示镜像：
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# 按 Ctrl+C 停止录制
+```
+
+录制时会包含“被跳过的帧”，即使它们由于性能原因没有实时显示。设备会为每一帧打上 _时间戳_ ，所以 [包时延抖动][packet delay variation] 不会影响录制的文件。
+
+[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+### 连接
+
+#### 无线
+
+_Scrcpy_ 使用 `adb` 与设备通信，并且 `adb` 支持通过 TCP/IP [连接]到设备:
+
+1. 将设备和电脑连接至同一 Wi-Fi。
+2. 打开 设置 → 关于手机 → 状态信息，获取设备的 IP 地址，也可以执行以下的命令：
+    ```bash
+    adb shell ip route | awk '{print $9}'
+    ```
+
+3. 启用设备的网络 adb 功能 `adb tcpip 5555`。
+4. 断开设备的 USB 连接。
+5. 连接到您的设备：`adb connect DEVICE_IP:5555` _(将 `DEVICE_IP` 替换为设备 IP)_.
+6. 正常运行 `scrcpy`。
+
+可能需要降低码率和分辨率：
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # 简写
+```
+
+[连接]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+#### 多设备
+
+如果 `adb devices` 列出了多个设备，您必须指定设备的 _序列号_ ：
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # 简写
+```
+
+如果设备通过 TCP/IP 连接：
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # 简写
+```
+
+您可以同时启动多个 _scrcpy_ 实例以同时显示多个设备的画面。
+
+#### 在设备连接时自动启动
+
+您可以使用 [AutoAdb]:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### SSH 隧道
+
+要远程连接到设备，可以将本地的 adb 客户端连接到远程的 adb 服务端 (需要两端的 _adb_ 协议版本相同)：
+
+```bash
+adb kill-server    # 关闭本地 5037 端口上的 adb 服务端
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# 保持该窗口开启
+```
+
+在另一个终端：
+
+```bash
+scrcpy
+```
+
+若要不使用远程端口转发，可以强制使用正向连接 (注意 `-L` 和 `-R` 的区别)：
+
+```bash
+adb kill-server    # 关闭本地 5037 端口上的 adb 服务端
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
+# 保持该窗口开启
+```
+
+在另一个终端:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+
+类似无线网络连接，可能需要降低画面质量：
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### 窗口设置
+
+#### 标题
+
+窗口的标题默认为设备型号。可以通过如下命令修改：
+
+```bash
+scrcpy --window-title 'My device'
+```
+
+#### 位置和大小
+
+您可以指定初始的窗口位置和大小：
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### 无边框
+
+关闭边框：
+
+```bash
+scrcpy --window-borderless
+```
+
+#### 保持窗口在最前
+
+您可以通过如下命令保持窗口在最前面：
+
+```bash
+scrcpy --always-on-top
+```
+
+#### 全屏
+
+您可以通过如下命令直接全屏启动scrcpy：
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # 简写
+```
+
+全屏状态可以通过 <kbd>MOD</kbd>+<kbd>f</kbd> 随时切换。
+
+#### 旋转
+
+可以通过以下命令旋转窗口：
+
+```bash
+scrcpy --rotation 1
+```
+
+可选的值有：
+ - `0`: 无旋转
+ - `1`: 逆时针旋转 90°
+ - `2`: 旋转 180°
+ - `3`: 顺时针旋转 90°
+
+也可以使用 <kbd>MOD</kbd>+<kbd>←</kbd> _(左箭头)_ 和 <kbd>MOD</kbd>+<kbd>→</kbd> _(右箭头)_ 随时更改。
+
+需要注意的是， _scrcpy_ 有三个不同的方向：
+ - <kbd>MOD</kbd>+<kbd>r</kbd> 请求设备在竖屏和横屏之间切换 (如果前台应用程序不支持请求的朝向，可能会拒绝该请求)。
+ - [`--lock-video-orientation`](#锁定屏幕方向) 改变镜像的朝向 (设备传输到电脑的画面的朝向)。这会影响录制。
+ - `--rotation` (或 <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>) 只旋转窗口的内容。这只影响显示，不影响录制。
+
+
+### 其他镜像设置
+
+#### 只读
+
+禁用电脑对设备的控制 (如键盘输入、鼠标事件和文件拖放)：
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+#### 显示屏
+
+如果设备有多个显示屏，可以选择要镜像的显示屏：
+
+```bash
+scrcpy --display 1
+```
+
+可以通过如下命令列出所有显示屏的 id：
+
+```
+adb shell dumpsys display   # 在输出中搜索 “mDisplayId=”
+```
+
+控制第二显示屏需要设备运行 Android 10 或更高版本 (否则将在只读状态下镜像)。
+
+
+#### 保持常亮
+
+阻止设备在连接时休眠：
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+程序关闭时会恢复设备原来的设置。
+
+
+#### 关闭设备屏幕
+
+可以通过以下的命令行参数在关闭设备屏幕的状态下进行镜像：
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+或者在任何时候按 <kbd>MOD</kbd>+<kbd>o</kbd>。
+
+要重新打开屏幕，按下 <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
+
+在Android上，`电源` 按钮始终能把屏幕打开。为了方便，对于在 _scrcpy_ 中发出的 `电源` 事件 (通过鼠标右键或 <kbd>MOD</kbd>+<kbd>p</kbd>)，会 (尽最大的努力) 在短暂的延迟后将屏幕关闭。设备上的 `电源` 按钮仍然能打开设备屏幕。
+
+还可以同时阻止设备休眠：
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+
+#### 渲染过期帧
+
+默认状态下，为了降低延迟， _scrcpy_ 永远渲染解码成功的最近一帧，并跳过前面任意帧。
+
+强制渲染所有帧 (可能导致延迟变高)：
+
+```bash
+scrcpy --render-expired-frames
+```
+
+#### 显示触摸
+
+在演示时，可能会需要显示物理触摸点 (在物理设备上的触摸点)。
+
+Android 在 _开发者选项_ 中提供了这项功能。
+
+_Scrcpy_ 提供一个选项可以在启动时开启这项功能并在退出时恢复初始设置：
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+请注意这项功能只能显示 _物理_ 触摸 (用手指在屏幕上的触摸)。
+
+
+#### 关闭屏保
+
+_Scrcpy_ 默认不会阻止电脑上开启的屏幕保护。
+
+关闭屏幕保护：
+
+```bash
+scrcpy --disable-screensaver
+```
+
+
+### 输入控制
+
+#### 旋转设备屏幕
+
+使用 <kbd>MOD</kbd>+<kbd>r</kbd> 在竖屏和横屏模式之间切换。
+
+需要注意的是，只有在前台应用程序支持所要求的模式时，才会进行切换。
+
+#### 复制粘贴
+
+每次安卓的剪贴板变化时，其内容都会被自动同步到电脑的剪贴板上。
+
+所有的 <kbd>Ctrl</kbd> 快捷键都会被转发至设备。其中：
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> 通常执行复制
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> 通常执行剪切
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> 通常执行粘贴 (在电脑到设备的剪贴板同步完成之后)
+
+大多数时候这些按键都会执行以上的功能。
+
+但实际的行为取决于设备上的前台程序。例如，_Termux_ 会在按下 <kbd>Ctrl</kbd>+<kbd>c</kbd> 时发送 SIGINT，又如 _K-9 Mail_ 会新建一封邮件。
+
+要在这种情况下进行剪切，复制和粘贴 (仅支持 Android >= 7)：
+ - <kbd>MOD</kbd>+<kbd>c</kbd> 注入 `COPY` (复制)
+ - <kbd>MOD</kbd>+<kbd>x</kbd> 注入 `CUT` (剪切)
+ - <kbd>MOD</kbd>+<kbd>v</kbd> 注入 `PASTE` (粘贴) (在电脑到设备的剪贴板同步完成之后)
+
+另外，<kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> 会将电脑的剪贴板内容转换为一串按键事件输入到设备。在应用程序不接受粘贴时 (比如 _Termux_)，这项功能可以派上一定的用场。不过这项功能可能会导致非 ASCII 编码的内容出现错误。
+
+**警告：** 将电脑剪贴板的内容粘贴至设备 (无论是通过 <kbd>Ctrl</kbd>+<kbd>v</kbd> 还是 <kbd>MOD</kbd>+<kbd>v</kbd>) 都会将内容复制到设备的剪贴板。如此，任何安卓应用程序都能读取到。您应避免将敏感内容 (如密码) 通过这种方式粘贴。
+
+一些设备不支持通过程序设置剪贴板。通过 `--legacy-paste` 选项可以修改 <kbd>Ctrl</kbd>+<kbd>v</kbd> 和 <kbd>MOD</kbd>+<kbd>v</kbd> 的工作方式，使它们通过按键事件 (同 <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>) 来注入电脑剪贴板内容。
+
+#### 双指缩放
+
+模拟“双指缩放”：<kbd>Ctrl</kbd>+_按住并移动鼠标_。
+
+更准确的说，在按住鼠标左键时按住 <kbd>Ctrl</kbd>。直到松开鼠标左键，所有鼠标移动将以屏幕中心为原点，缩放或旋转内容 (如果应用支持)。
+
+实际上，_scrcpy_ 会在以屏幕中心对称的位置上生成由“虚拟手指”发出的额外触摸事件。
+
+
+#### 文字注入偏好
+
+打字的时候，系统会产生两种[事件][textevents]：
+ - _按键事件_ ，代表一个按键被按下或松开。
+ - _文本事件_ ，代表一个字符被输入。
+
+程序默认使用按键事件来输入字母。只有这样，键盘才会在游戏中正常运作 (例如 WASD 键)。
+
+但这也有可能[造成一些问题][prefertext]。如果您遇到了问题，可以通过以下方式避免：
+
+```bash
+scrcpy --prefer-text
+```
+
+(这会导致键盘在游戏中工作不正常)
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### 按键重复
+
+默认状态下，按住一个按键不放会生成多个重复按键事件。在某些游戏中这可能会导致性能问题。
+
+避免转发重复按键事件：
+
+```bash
+scrcpy --no-key-repeat
+```
+
+
+#### 右键和中键
+
+默认状态下，右键会触发返回键 (或电源键)，中键会触发 HOME 键。要禁用这些快捷键并把所有点击转发到设备：
+
+```bash
+scrcpy --forward-all-clicks
+```
+
+
+### 文件拖放
+
+#### 安装APK
+
+将 APK 文件 (文件名以 `.apk` 结尾) 拖放到 _scrcpy_ 窗口来安装。
+
+该操作在屏幕上不会出现任何变化，而会在控制台输出一条日志。
+
+
+#### 将文件推送至设备
+
+要推送文件到设备的 `/sdcard/`，将 (非 APK) 文件拖放至 _scrcpy_ 窗口。
+
+该操作没有可见的响应，只会在控制台输出日志。
+
+在启动时可以修改目标目录：
+
+```bash
+scrcpy --push-target /sdcard/foo/bar/
+```
+
+
+### 音频转发
+
+_Scrcpy_ 不支持音频。请使用 [sndcpy].
+
+另外请阅读 [issue #14]。
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+
+## 快捷键
+
+在以下列表中, <kbd>MOD</kbd> 是快捷键的修饰键。
+默认是 (左) <kbd>Alt</kbd> 或 (左) <kbd>Super</kbd>。
+
+您可以使用 `--shortcut-mod` 来修改。可选的按键有 `lctrl`、`rctrl`、`lalt`、`ralt`、`lsuper` 和 `rsuper`。例如：
+
+```bash
+# 使用右 Ctrl 键
+scrcpy --shortcut-mod=rctrl
+
+# 使用左 Ctrl 键 + 左 Alt 键，或 Super 键
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_<kbd>[Super]</kbd> 键通常是指 <kbd>Windows</kbd> 或 <kbd>Cmd</kbd> 键。_
+
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
+ | 操作                              | 快捷键                                       |
+ | --------------------------------- | :------------------------------------------- |
+ | 全屏                              | <kbd>MOD</kbd>+<kbd>f</kbd>                  |
+ | 向左旋转屏幕                      | <kbd>MOD</kbd>+<kbd>←</kbd> _(左箭头)_       |
+ | 向右旋转屏幕                      | <kbd>MOD</kbd>+<kbd>→</kbd> _(右箭头)_       |
+ | 将窗口大小重置为1:1 (匹配像素)    | <kbd>MOD</kbd>+<kbd>g</kbd>                  |
+ | 将窗口大小重置为消除黑边          | <kbd>MOD</kbd>+<kbd>w</kbd> \| _双击¹_       |
+ | 点按 `主屏幕`                     | <kbd>MOD</kbd>+<kbd>h</kbd> \| _鼠标中键_    |
+ | 点按 `返回`                       | <kbd>MOD</kbd>+<kbd>b</kbd> \| _鼠标右键²_   |
+ | 点按 `切换应用`                   | <kbd>MOD</kbd>+<kbd>s</kbd>                  |
+ | 点按 `菜单` (解锁屏幕)            | <kbd>MOD</kbd>+<kbd>m</kbd>                  |
+ | 点按 `音量+`                      | <kbd>MOD</kbd>+<kbd>↑</kbd> _(上箭头)_       |
+ | 点按 `音量-`                      | <kbd>MOD</kbd>+<kbd>↓</kbd> _(下箭头)_       |
+ | 点按 `电源`                       | <kbd>MOD</kbd>+<kbd>p</kbd>                  |
+ | 打开屏幕                          | _鼠标右键²_                                  |
+ | 关闭设备屏幕 (但继续在电脑上显示) | <kbd>MOD</kbd>+<kbd>o</kbd>                  |
+ | 打开设备屏幕                      | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd> |
+ | 旋转设备屏幕                      | <kbd>MOD</kbd>+<kbd>r</kbd>                  |
+ | 展开通知面板                      | <kbd>MOD</kbd>+<kbd>n</kbd>                  |
+ | 收起通知面板                      | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd> |
+ | 复制到剪贴板³                     | <kbd>MOD</kbd>+<kbd>c</kbd>                  |
+ | 剪切到剪贴板³                     | <kbd>MOD</kbd>+<kbd>x</kbd>                  |
+ | 同步剪贴板并粘贴³                 | <kbd>MOD</kbd>+<kbd>v</kbd>                  |
+ | 注入电脑剪贴板文本                | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> |
+ | 打开/关闭FPS显示 (在 stdout)      | <kbd>MOD</kbd>+<kbd>i</kbd>                  |
+ | 捏拉缩放                          | <kbd>Ctrl</kbd>+_按住并移动鼠标_             |
+
+_¹双击黑边可以去除黑边_
+_²点击鼠标右键将在屏幕熄灭时点亮屏幕，其余情况则视为按下返回键 。_
+_³需要安卓版本 Android >= 7。_
+
+所有的 <kbd>Ctrl</kbd>+_按键_ 的快捷键都会被转发到设备，所以会由当前应用程序进行处理。
+
+
+## 自定义路径
+
+要使用指定的 _adb_ 二进制文件，可以设置环境变量 `ADB`：
+
+    ADB=/path/to/adb scrcpy
+
+要覆盖 `scrcpy-server` 的路径，可以设置 `SCRCPY_SERVER_PATH`。
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+
+## 为什么叫 _scrcpy_ ？
+
+一个同事让我找出一个和 [gnirehtet] 一样难以发音的名字。
+
+[`strcpy`] 复制一个 **str**ing； `scrcpy` 复制一个 **scr**een。
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+## 如何构建？
+
+请查看[BUILD]。
+
+[BUILD]: BUILD.md
+
+
+## 常见问题
+
+请查看[FAQ](FAQ.md)。
+
+
+## 开发者
+
+请查看[开发者页面]。
+
+[开发者页面]: DEVELOP.md
+
+
+## 许可协议
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## 相关文章
+
+- [Introducing scrcpy][article-intro]
+- [Scrcpy now works wirelessly][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/

README.zh-Hant.md

@@ -0,0 +1,702 @@
+_Only the original [README](README.md) is guaranteed to be up-to-date._
+
+_只有原版的 [README](README.md)是保證最新的。_
+
+
+本文件翻譯時點: [521f2fe](https://github.com/Genymobile/scrcpy/commit/521f2fe994019065e938aa1a54b56b4f10a4ac4a#diff-04c6e90faac2675aa89e2176d2eec7d8)
+
+
+# scrcpy (v1.15)
+
+Scrcpy 可以透過 USB、或是 [TCP/IP][article-tcpip] 來顯示或控制 Android 裝置。且 scrcpy 不需要 _root_ 權限。
+
+Scrcpy 目前支援 _GNU/Linux_、_Windows_ 和 _macOS_。
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+特色:
+
+ - **輕量** (只顯示裝置螢幕)
+ - **效能** (30~60fps)
+ - **品質** (1920×1080 或更高)
+ - **低延遲** ([35~70ms][lowlatency])
+ - **快速啟動** (~1 秒就可以顯示第一個畫面)
+ - **非侵入性** (不安裝、留下任何東西在裝置上)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## 需求
+
+Android 裝置必須是 API 21+ (Android 5.0+)。
+
+請確認裝置上的 [adb 偵錯 (通常位於開發者模式內)][enable-adb] 已啟用。
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+
+在部分的裝置上，你也必須啟用[特定的額外選項][control]才能使用鍵盤和滑鼠控制。
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## 下載/獲取軟體
+
+
+### Linux
+
+Debian (目前支援 _testing_ 和 _sid_) 和 Ubuntu (20.04):
+
+```
+apt install scrcpy
+```
+
+[Snap] 上也可以下載: [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+在 Fedora 上也可以使用 [COPR] 下載: [`scrcpy`][copr-link].
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+在 Arch Linux 上也可以使用 [AUR] 下載: [`scrcpy`][aur-link].
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+在 Gentoo 上也可以使用 [Ebuild] 下載: [`scrcpy/`][ebuild-link].
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+你也可以自己[編譯 _Scrcpy_][BUILD]。別擔心，並沒有想像中的難。
+
+
+
+### Windows
+
+為了保持簡單，Windows 用戶可以下載一個包含所有必需軟體 (包含 `adb`) 的壓縮包:
+
+ - [README](README.md#windows)
+
+[Chocolatey] 上也可以下載:
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # 如果你還沒有安裝的話
+```
+
+[Scoop] 上也可以下載:
+
+```bash
+scoop install scrcpy
+scoop install adb    # 如果你還沒有安裝的話
+```
+
+[Scoop]: https://scoop.sh
+
+你也可以自己[編譯 _Scrcpy_][BUILD]。
+
+
+### macOS
+
+_Scrcpy_ 可以在 [Homebrew] 上直接安裝:
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+由於執行期間需要可以藉由 `PATH` 存取 `adb` 。如果還沒有安裝 `adb` 可以使用下列方式安裝:
+
+```bash
+brew cask install android-platform-tools
+```
+
+你也可以自己[編譯 _Scrcpy_][BUILD]。
+
+
+## 執行
+
+將電腦和你的 Android 裝置連線，然後執行:
+
+```bash
+scrcpy
+```
+
+_Scrcpy_ 可以接受命令列參數。輸入下列指令就可以瀏覽可以使用的命令列參數:
+
+```bash
+scrcpy --help
+```
+
+
+## 功能
+
+> 以下說明中，有關快捷鍵的說明可能會出現 <kbd>MOD</kbd> 按鈕。相關說明請參見[快捷鍵]內的說明。
+
+[快捷鍵]: #快捷鍵
+
+### 畫面擷取
+
+#### 縮小尺寸
+
+使用比較低的解析度來投放 Android 裝置在某些情況可以提升效能。
+
+限制寬和高的最大值(例如: 1024):
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # 縮短版本
+```
+
+比較小的參數會根據螢幕比例重新計算。
+根據上面的範例，1920x1080 會被縮小成 1024x576。
+
+
+#### 更改 bit-rate
+
+預設的 bit-rate 是 8 Mbps。如果要更改 bit-rate (例如: 2 Mbps):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # 縮短版本
+```
+
+#### 限制 FPS
+
+限制畫面最高的 FPS:
+
+```bash
+scrcpy --max-fps 15
+```
+
+僅在 Android 10 後正式支援，不過也有可能可以在 Android 10 以前的版本使用。
+
+#### 裁切
+
+裝置的螢幕可以裁切。如此一來，鏡像出來的螢幕就只會是原本的一部份。
+
+假如只要鏡像 Oculus Go 的其中一隻眼睛:
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 位於 (0,0)，大小1224x1440
+```
+
+如果 `--max-size` 也有指定的話，裁切後才會縮放。
+
+
+#### 鎖定影像方向
+
+
+如果要鎖定鏡像影像方向:
+
+```bash
+scrcpy --lock-video-orientation 0   # 原本的方向
+scrcpy --lock-video-orientation 1   # 逆轉 90°
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 順轉 90°
+```
+
+這會影響錄影結果的影像方向。
+
+
+### 錄影
+
+鏡像投放螢幕的同時也可以錄影:
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+如果只要錄影，不要投放螢幕鏡像的話:
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# 用 Ctrl+C 停止錄影
+```
+
+就算有些幀為了效能而被跳過，它們還是一樣會被錄製。
+
+裝置上的每一幀都有時間戳記，所以 [封包延遲 (Packet Delay Variation, PDV)][packet delay variation] 並不會影響錄影的檔案。
+
+[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+### 連線
+
+#### 無線
+
+_Scrcpy_ 利用 `adb` 和裝置通訊，而 `adb` 可以[透過 TCP/IP 連結][connect]:
+
+1. 讓電腦和裝置連到同一個 Wi-Fi。
+2. 獲取手機的 IP 位址(設定 → 關於手機 → 狀態).
+3. 啟用裝置上的 `adb over TCP/IP`: `adb tcpip 5555`.
+4. 拔掉裝置上的線。
+5. 透過 TCP/IP 連接裝置: `adb connect DEVICE_IP:5555` _(把 `DEVICE_IP` 換成裝置的IP位址)_.
+6. 和平常一樣執行 `scrcpy`。
+
+如果效能太差，可以降低 bit-rate 和解析度:
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # 縮短版本
+```
+
+[connect]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+#### 多裝置
+
+如果 `adb devices` 內有多個裝置，則必須附上 _serial_:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # 縮短版本
+```
+
+如果裝置是透過 TCP/IP 連線:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # 縮短版本
+```
+
+你可以啟用復數個對應不同裝置的 _scrcpy_。
+
+#### 裝置連結後自動啟動
+
+你可以使用 [AutoAdb]:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### SSH tunnel
+
+本地的 `adb` 可以連接到遠端的 `adb` 伺服器(假設兩者使用相同版本的 _adb_ 通訊協定)，以連接到遠端裝置:
+
+```bash
+adb kill-server    # 停止在 Port 5037 的本地 adb 伺服
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# 保持開啟
+```
+
+從另外一個終端機:
+
+```bash
+scrcpy
+```
+
+如果要避免啟用 remote port forwarding，你可以強制它使用 forward connection (注意 `-L` 和 `-R` 的差別):
+
+```bash
+adb kill-server    # 停止在 Port 5037 的本地 adb 伺服
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
+# 保持開啟
+```
+
+從另外一個終端機:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+
+和無線連接一樣，有時候降低品質會比較好:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### 視窗調整
+
+#### 標題
+
+預設標題是裝置的型號，不過可以透過以下方式修改:
+
+```bash
+scrcpy --window-title 'My device'
+```
+
+#### 位置 & 大小
+
+初始的視窗位置和大小也可以指定:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### 無邊框
+
+如果要停用視窗裝飾:
+
+```bash
+scrcpy --window-borderless
+```
+
+#### 保持最上層
+
+如果要保持 `scrcpy` 的視窗在最上層:
+
+```bash
+scrcpy --always-on-top
+```
+
+#### 全螢幕
+
+這個軟體可以直接在全螢幕模式下起動:
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # 縮短版本
+```
+
+全螢幕可以使用 <kbd>MOD</kbd>+<kbd>f</kbd> 開關。
+
+#### 旋轉
+
+視窗可以旋轉:
+
+```bash
+scrcpy --rotation 1
+```
+
+可用的數值:
+ - `0`: 不旋轉
+ - `1`: 90 度**逆**轉
+ - `2`: 180 度
+ - `3`: 90 度**順**轉
+
+旋轉方向也可以使用 <kbd>MOD</kbd>+<kbd>←</kbd> _(左方向鍵)_ 和 <kbd>MOD</kbd>+<kbd>→</kbd> _(右方向鍵)_ 調整。
+
+_scrcpy_ 有 3 種不同的旋轉:
+ - <kbd>MOD</kbd>+<kbd>r</kbd> 要求裝置在垂直、水平之間旋轉 (目前運行中的 App 有可能會因為不支援而拒絕)。
+ - `--lock-video-orientation` 修改鏡像的方向 (裝置傳給電腦的影像)。這會影響錄影結果的影像方向。
+ - `--rotation` (或是 <kbd>MOD</kbd>+<kbd>←</kbd> / <kbd>MOD</kbd>+<kbd>→</kbd>) 只旋轉視窗的內容。這只會影響鏡像結果，不會影響錄影結果。
+
+
+### 其他鏡像選項
+
+#### 唯讀
+
+停用所有控制，包含鍵盤輸入、滑鼠事件、拖放檔案:
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+#### 顯示螢幕
+
+如果裝置有複數個螢幕，可以指定要鏡像哪個螢幕:
+
+```bash
+scrcpy --display 1
+```
+
+可以透過下列指令獲取螢幕 ID:
+
+```
+adb shell dumpsys display   # 找輸出結果中的 "mDisplayId="
+```
+
+第二螢幕只有在 Android 10+ 時可以控制。如果不是 Android 10+，螢幕就會在唯讀狀態下投放。
+
+
+#### 保持清醒
+
+如果要避免裝置在連接狀態下進入睡眠:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+_scrcpy_ 關閉後就會回復成原本的設定。
+
+
+#### 關閉螢幕
+
+鏡像開始時，可以要求裝置關閉螢幕:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+或是在任何時候輸入 <kbd>MOD</kbd>+<kbd>o</kbd>。
+
+如果要開啟螢幕，輸入 <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>。
+
+在 Android 上，`POWER` 按鈕總是開啟螢幕。
+
+為了方便，如果 `POWER` 是透過 scrcpy 轉送 (右鍵 或 <kbd>MOD</kbd>+<kbd>p</kbd>)的話，螢幕將會在短暫的延遲後關閉。
+
+實際在手機上的 `POWER` 還是會開啟螢幕。
+
+防止裝置進入睡眠狀態:
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+
+#### 顯示過期的幀
+
+為了降低延遲， _scrcpy_ 預設只會顯示最後解碼的幀，並且拋棄所有在這之前的幀。
+
+如果要強制顯示所有的幀 (有可能會拉高延遲)，輸入:
+
+```bash
+scrcpy --render-expired-frames
+```
+
+#### 顯示觸控點
+
+對於要報告的人來說，顯示裝置上的實際觸控點有時候是有幫助的。
+
+Android 在_開發者選項_中有提供這個功能。
+
+_Scrcpy_ 可以在啟動時啟用這個功能，並且在停止後恢復成原本的設定:
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+這個選項只會顯示**實際觸碰在裝置上的觸碰點**。
+
+
+### 輸入控制
+
+
+#### 旋轉裝置螢幕
+
+輸入 <kbd>MOD</kbd>+<kbd>r</kbd> 以在垂直、水平之間切換。
+
+如果使用中的程式不支援，則不會切換。
+
+
+#### 複製/貼上
+
+如果 Android 剪貼簿上的內容有任何更動，電腦的剪貼簿也會一起更動。
+
+任何與 <kbd>Ctrl</kbd> 相關的快捷鍵事件都會轉送到裝置上。特別來說:
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> 通常是複製
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> 通常是剪下
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> 通常是貼上 (在電腦的剪貼簿與裝置上的剪貼簿同步之後)
+
+這些跟你通常預期的行為一樣。
+
+但是，實際上的行為是根據目前運行中的應用程式而定。
+
+舉例來說， _Termux_ 在收到 <kbd>Ctrl</kbd>+<kbd>c</kbd> 後，會傳送 SIGINT；而 _K-9 Mail_ 則是建立新訊息。
+
+如果在這情況下，要剪下、複製或貼上 (只有在Android 7+時才支援):
+ - <kbd>MOD</kbd>+<kbd>c</kbd> 注入 `複製`
+ - <kbd>MOD</kbd>+<kbd>x</kbd> 注入 `剪下`
+ - <kbd>MOD</kbd>+<kbd>v</kbd> 注入 `貼上` (在電腦的剪貼簿與裝置上的剪貼簿同步之後)
+
+另外，<kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> 則是以一連串的按鍵事件貼上電腦剪貼簿中的內容。當元件不允許文字貼上 (例如 _Termux_) 時，這就很有用。不過，這在非 ASCII 內容上就無法使用。
+
+**警告:** 貼上電腦的剪貼簿內容 (無論是從 <kbd>Ctrl</kbd>+<kbd>v</kbd> 或 <kbd>MOD</kbd>+<kbd>v</kbd>) 時，會複製剪貼簿中的內容至裝置的剪貼簿上。這會讓所有 Android 程式讀取剪貼簿的內容。請避免貼上任何敏感內容 (像是密碼)。
+
+
+#### 文字輸入偏好
+
+輸入文字時，有兩種[事件][textevents]會被觸發:
+ - _鍵盤事件 (key events)_，代表有一個按鍵被按下或放開
+ - _文字事件 (text events)_，代表有一個文字被輸入
+
+預設上，文字是被以鍵盤事件 (key events) 輸入的，所以鍵盤和遊戲內所預期的一樣 (通常是指 WASD)。
+
+但是這可能造成[一些問題][prefertext]。如果在這輸入這方面遇到了問題，你可以試試:
+
+```bash
+scrcpy --prefer-text
+```
+
+(不過遊戲內鍵盤就會不可用)
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### 重複輸入
+
+通常來說，長時間按住一個按鍵會重複觸發按鍵事件。這會在一些遊戲中造成效能問題，而且這個重複的按鍵事件是沒有意義的。
+
+如果不要轉送這些重複的按鍵事件:
+
+```bash
+scrcpy --no-key-repeat
+```
+
+
+### 檔案
+
+#### 安裝 APK
+
+如果要安裝 APK ，拖放一個 APK 檔案 (以 `.apk` 為副檔名) 到 _scrcpy_ 的視窗上。
+
+視窗上不會有任何反饋；結果會顯示在命令列中。
+
+
+#### 推送檔案至裝置
+
+如果要推送檔案到裝置上的 `/sdcard/` ，拖放一個非 APK 檔案 (**不**以 `.apk` 為副檔名) 到 _scrcpy_ 的視窗上。
+
+視窗上不會有任何反饋；結果會顯示在命令列中。
+
+推送檔案的目標路徑可以在啟動時指定:
+
+```bash
+scrcpy --push-target /sdcard/foo/bar/
+```
+
+
+### 音訊轉送
+
+_scrcpy_ **不**轉送音訊。請使用 [sndcpy]。另外，參見 [issue #14]。
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+
+## 快捷鍵
+
+在以下的清單中，<kbd>MOD</kbd> 是快捷鍵的特殊按鍵。通常來說，這個按鍵是 (左) <kbd>Alt</kbd> 或是 (左) <kbd>Super</kbd>。
+
+這個是可以使用 `--shortcut-mod` 更改的。可以用的選項有:
+- `lctrl`: 左邊的 <kbd>Ctrl</kbd>
+- `rctrl`: 右邊的 <kbd>Ctrl</kbd>
+- `lalt`: 左邊的 <kbd>Alt</kbd>
+- `ralt`: 右邊的 <kbd>Alt</kbd>
+- `lsuper`: 左邊的 <kbd>Super</kbd>
+- `rsuper`: 右邊的 <kbd>Super</kbd>
+
+```bash
+# 以 右邊的 Ctrl 為快捷鍵特殊按鍵
+scrcpy --shortcut-mod=rctrl
+
+# 以 左邊的 Ctrl 和左邊的 Alt 或是 左邊的 Super 為快捷鍵特殊按鍵
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_<kbd>[Super]</kbd> 通常是 <kbd>Windows</kbd> 或 <kbd>Cmd</kbd> 鍵。_
+
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
+ | Action                                            |   Shortcut
+ | ------------------------------------------------- |:-----------------------------
+ | 切換至全螢幕                                       | <kbd>MOD</kbd>+<kbd>f</kbd>
+ | 左旋顯示螢幕                                       | <kbd>MOD</kbd>+<kbd>←</kbd> _(左)_
+ | 右旋顯示螢幕                                       | <kbd>MOD</kbd>+<kbd>→</kbd> _(右)_
+ | 縮放視窗成 1:1 (pixel-perfect)                     | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | 縮放視窗到沒有黑邊框為止                            | <kbd>MOD</kbd>+<kbd>w</kbd> \| _雙擊¹_
+ | 按下 `首頁` 鍵                                     | <kbd>MOD</kbd>+<kbd>h</kbd> \| _中鍵_
+ | 按下 `返回` 鍵                                     | <kbd>MOD</kbd>+<kbd>b</kbd> \| _右鍵²_
+ | 按下 `切換 APP` 鍵                                 | <kbd>MOD</kbd>+<kbd>s</kbd>
+ | 按下 `選單` 鍵 (或解鎖螢幕)                         | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | 按下 `音量+` 鍵                                    | <kbd>MOD</kbd>+<kbd>↑</kbd> _(上)_
+ | 按下 `音量-` 鍵                                    | <kbd>MOD</kbd>+<kbd>↓</kbd> _(下)_
+ | 按下 `電源` 鍵                                     | <kbd>MOD</kbd>+<kbd>p</kbd>
+ | 開啟                                               | _右鍵²_
+ | 關閉裝置螢幕(持續鏡像)                              | <kbd>MOD</kbd>+<kbd>o</kbd>
+ | 開啟裝置螢幕                                        | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
+ | 旋轉裝置螢幕                                        | <kbd>MOD</kbd>+<kbd>r</kbd>
+ | 開啟通知列                                          | <kbd>MOD</kbd>+<kbd>n</kbd>
+ | 關閉通知列                                          | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | 複製至剪貼簿³                                       | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | 剪下至剪貼簿³                                       | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | 同步剪貼簿並貼上³                                   | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | 複製電腦剪貼簿中的文字至裝置並貼上                    | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
+ | 啟用/停用 FPS 計數器(顯示於 stdout - 通常是命令列)    | <kbd>MOD</kbd>+<kbd>i</kbd>
+
+_¹在黑邊框上雙擊以移除它們。_  
+_²右鍵會返回。如果螢幕是關閉狀態，則會打開螢幕。_  
+_³只支援 Android 7+。_
+
+所有 <kbd>Ctrl</kbd>+_按鍵_ 快捷鍵都會傳送到裝置上，所以它們是由目前運作的應用程式處理的。
+
+
+## 自訂路徑
+
+如果要使用特定的 _adb_ ，將它設定到環境變數中的 `ADB`:
+
+    ADB=/path/to/adb scrcpy
+
+如果要覆寫 `scrcpy-server` 檔案的路徑，則將路徑設定到環境變數中的 `SCRCPY_SERVER_PATH`。
+
+[相關連結][useful]
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+
+## 為何叫 _scrcpy_ ？
+
+有一個同事要我找一個跟 [gnirehtet] 一樣難念的名字。
+
+[`strcpy`] 複製一個字串 (**str**ing)；`scrcpy` 複製一個螢幕 (**scr**een)。
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+## 如何編譯？
+
+請看[這份文件 (英文)][BUILD]。
+
+[BUILD]: BUILD.md
+
+
+## 常見問題
+
+請看[這份文件 (英文)][FAQ]。
+
+[FAQ]: FAQ.md
+
+
+## 開發者文件
+
+請看[這個頁面 (英文)][developers page].
+
+[developers page]: DEVELOP.md
+
+
+## Licence
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## 相關文章
+
+- [Scrcpy 簡介 (英文)][article-intro]
+- [Scrcpy 可以無線連線了 (英文)][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/

app/meson.build

@@ -1,27 +1,71 @@
 src = [
     'src/main.c',
-    'src/command.c',
+    'src/adb.c',
+    'src/cli.c',
+    'src/clock.c',
+    'src/compat.c',
     'src/control_msg.c',
     'src/controller.c',
-    'src/convert.c',
     'src/decoder.c',
-    'src/device.c',
     'src/device_msg.c',
+    'src/icon.c',
     'src/file_handler.c',
     'src/fps_counter.c',
+    'src/frame_buffer.c',
     'src/input_manager.c',
-    'src/net.c',
+    'src/keyboard_inject.c',
+    'src/mouse_inject.c',
+    'src/opengl.c',
+    'src/options.c',
     'src/receiver.c',
     'src/recorder.c',
     'src/scrcpy.c',
     'src/screen.c',
     'src/server.c',
-    'src/str_util.c',
-    'src/tiny_xpm.c',
     'src/stream.c',
     'src/video_buffer.c',
+    'src/util/file.c',
+    'src/util/log.c',
+    'src/util/net.c',
+    'src/util/process.c',
+    'src/util/strbuf.c',
+    'src/util/str_util.c',
+    'src/util/term.c',
+    'src/util/thread.c',
+    'src/util/tick.c',
 ]
 
+if host_machine.system() == 'windows'
+    src += [
+        'src/sys/win/file.c',
+        'src/sys/win/process.c',
+    ]
+else
+    src += [
+        'src/sys/unix/file.c',
+        'src/sys/unix/process.c',
+    ]
+endif
+
+v4l2_support = host_machine.system() == 'linux'
+if v4l2_support
+    src += [ 'src/v4l2_sink.c' ]
+endif
+
+aoa_hid_support = host_machine.system() == 'linux'
+if aoa_hid_support
+    src += [
+        'src/aoa_hid.c',
+        'src/hid_keyboard.c',
+    ]
+endif
+
+check_functions = [
+    'strdup'
+]
+
+cc = meson.get_compiler('c')
+
 if not get_option('crossbuild_windows')
 
     # native build
@@ -32,11 +76,16 @@ if not get_option('crossbuild_windows')
         dependency('sdl2'),
     ]
 
+    if v4l2_support
+        dependencies += dependency('libavdevice')
+    endif
+
+    if aoa_hid_support
+        dependencies += dependency('libusb-1.0')
+    endif
+
 else
-
     # cross-compile mingw32 build (from Linux to Windows)
-    cc = meson.get_compiler('c')
-
     prebuilt_sdl2 = meson.get_cross_property('prebuilt_sdl2')
     sdl2_bin_dir = meson.current_source_dir() + '/../prebuilt-deps/' + prebuilt_sdl2 + '/bin'
     sdl2_lib_dir = meson.current_source_dir() + '/../prebuilt-deps/' + prebuilt_sdl2 + '/lib'
@@ -71,21 +120,18 @@ else
 
 endif
 
-cc = meson.get_compiler('c')
-
 if host_machine.system() == 'windows'
-    src += [ 'src/sys/win/command.c' ]
-    src += [ 'src/sys/win/net.c' ]
     dependencies += cc.find_library('ws2_32')
-else
-    src += [ 'src/sys/unix/command.c' ]
-    src += [ 'src/sys/unix/net.c' ]
 endif
 
 conf = configuration_data()
 
-# expose the build type
+foreach f : check_functions
-conf.set('BUILD_DEBUG', get_option('buildtype') == 'debug')
+  if cc.has_function(f)
+    define = 'HAVE_' + f.underscorify().to_upper()
+    conf.set(define, true)
+  endif
+endforeach
 
 # the version, updated on release
 conf.set_quoted('SCRCPY_VERSION', meson.project_version())
@@ -93,72 +139,99 @@ conf.set_quoted('SCRCPY_VERSION', meson.project_version())
 # the prefix used during configuration (meson --prefix=PREFIX)
 conf.set_quoted('PREFIX', get_option('prefix'))
 
-# build a "portable" version (with scrcpy-server.jar accessible from the same
+# build a "portable" version (with scrcpy-server accessible from the same
 # directory as the executable)
 conf.set('PORTABLE', get_option('portable'))
 
-# the default client TCP port for the "adb reverse" tunnel
+# the default client TCP port range for the "adb reverse" tunnel
 # overridden by option --port
-conf.set('DEFAULT_LOCAL_PORT', '27183')
+conf.set('DEFAULT_LOCAL_PORT_RANGE_FIRST', '27183')
-
+conf.set('DEFAULT_LOCAL_PORT_RANGE_LAST', '27199')
-# the default max video size for both dimensions, in pixels
-# overridden by option --max-size
-conf.set('DEFAULT_MAX_SIZE', '0')  # 0: unlimited
 
 # the default video bitrate, in bits/second
 # overridden by option --bit-rate
 conf.set('DEFAULT_BIT_RATE', '8000000')  # 8Mbps
 
-# enable High DPI support
+# run a server debugger and wait for a client to be attached
-conf.set('HIDPI_SUPPORT', get_option('hidpi_support'))
+conf.set('SERVER_DEBUGGER', get_option('server_debugger'))
 
-# disable console on Windows
+# select the debugger method ('old' for Android < 9, 'new' for Android >= 9)
-conf.set('WINDOWS_NOCONSOLE', get_option('windows_noconsole'))
+conf.set('SERVER_DEBUGGER_METHOD_NEW', get_option('server_debugger_method') == 'new')
+
+# enable V4L2 support (linux only)
+conf.set('HAVE_V4L2', v4l2_support)
+
+# enable HID over AOA support (linux only)
+conf.set('HAVE_AOA_HID', aoa_hid_support)
 
 configure_file(configuration: conf, output: 'config.h')
 
 src_dir = include_directories('src')
 
-if get_option('windows_noconsole')
-    c_args = [ '-mwindows' ]
-    link_args = [ '-mwindows' ]
-else
-    c_args = []
-    link_args = []
-endif
-
 executable('scrcpy', src,
            dependencies: dependencies,
            include_directories: src_dir,
            install: true,
-           c_args: c_args,
+           c_args: [])
-           link_args: link_args)
+
+install_man('scrcpy.1')
+install_data('../data/icon.png',
+             rename: 'scrcpy.png',
+             install_dir: 'share/icons/hicolor/256x256/apps')
 
 
 ### TESTS
 
-tests = [
+# do not build tests in release (assertions would not be executed at all)
-    ['test_cbuf', [
+if get_option('buildtype') == 'debug'
-        'tests/test_cbuf.c',
+    tests = [
-    ]],
+        ['test_buffer_util', [
-    ['test_control_event_serialize', [
+            'tests/test_buffer_util.c'
-        'tests/test_control_msg_serialize.c',
+        ]],
-        'src/control_msg.c',
+        ['test_cbuf', [
-        'src/str_util.c'
+            'tests/test_cbuf.c',
-    ]],
+        ]],
-    ['test_device_event_deserialize', [
+        ['test_cli', [
-        'tests/test_device_msg_deserialize.c',
+            'tests/test_cli.c',
-        'src/device_msg.c'
+            'src/cli.c',
-    ]],
+            'src/options.c',
-    ['test_strutil', [
+            'src/util/strbuf.c',
-        'tests/test_strutil.c',
+            'src/util/str_util.c',
-        'src/str_util.c'
+            'src/util/term.c',
-    ]],
+        ]],
-]
+        ['test_clock', [
+            'tests/test_clock.c',
+            'src/clock.c',
+        ]],
+        ['test_control_msg_serialize', [
+            'tests/test_control_msg_serialize.c',
+            'src/control_msg.c',
+            'src/util/strbuf.c',
+            'src/util/str_util.c',
+        ]],
+        ['test_device_msg_deserialize', [
+            'tests/test_device_msg_deserialize.c',
+            'src/device_msg.c',
+        ]],
+        ['test_queue', [
+            'tests/test_queue.c',
+        ]],
+        ['test_strbuf', [
+            'tests/test_strbuf.c',
+            'src/util/strbuf.c',
+        ]],
+        ['test_strutil', [
+            'tests/test_strutil.c',
+            'src/util/strbuf.c',
+            'src/util/str_util.c',
+        ]],
+    ]
 
-foreach t : tests
+    foreach t : tests
-    exe = executable(t[0], t[1],
+        exe = executable(t[0], t[1],
-                     include_directories: src_dir,
+                         include_directories: src_dir,
-                     dependencies: dependencies)
+                         dependencies: dependencies,
-    test(t[0], exe)
+                         c_args: ['-DSDL_MAIN_HANDLED', '-DSC_TEST'])
-endforeach
+        test(t[0], exe)
+    endforeach
+endif

app/scrcpy.1

@@ -0,0 +1,418 @@
+.TH "scrcpy" "1"
+.SH NAME
+scrcpy \- Display and control your Android device
+
+
+.SH SYNOPSIS
+.B scrcpy
+.RI [ options ]
+
+
+.SH DESCRIPTION
+.B scrcpy
+provides display and control of Android devices connected on USB (or over TCP/IP). It does not require any root access.
+
+
+.SH OPTIONS
+
+.TP
+.B \-\-always\-on\-top
+Make scrcpy window always on top (above other windows).
+
+.TP
+.BI "\-b, \-\-bit\-rate " value
+Encode the video at the given bit\-rate, expressed in bits/s. Unit suffixes are supported: '\fBK\fR' (x1000) and '\fBM\fR' (x1000000).
+
+Default is 8000000.
+
+.TP
+.BI "\-\-codec\-options " key[:type]=value[,...]
+Set a list of comma-separated key:type=value options for the device encoder.
+
+The possible values for 'type' are 'int' (default), 'long', 'float' and 'string'.
+
+The list of possible codec options is available in the Android documentation
+.UR https://d.android.com/reference/android/media/MediaFormat
+.UE .
+
+.TP
+.BI "\-\-crop " width\fR:\fIheight\fR:\fIx\fR:\fIy
+Crop the device screen on the server.
+
+The values are expressed in the device natural orientation (typically, portrait for a phone, landscape for a tablet). Any
+.B \-\-max\-size
+value is computed on the cropped size.
+
+.TP
+.BI "\-\-disable-screensaver"
+Disable screensaver while scrcpy is running.
+
+.TP
+.BI "\-\-display " id
+Specify the display id to mirror.
+
+The list of possible display ids can be listed by "adb shell dumpsys display"
+(search "mDisplayId=" in the output).
+
+Default is 0.
+
+.TP
+.BI "\-\-display\-buffer ms
+Add a buffering delay (in milliseconds) before displaying. This increases latency to compensate for jitter.
+
+Default is 0 (no buffering).
+
+.TP
+.BI "\-\-encoder " name
+Use a specific MediaCodec encoder (must be a H.264 encoder).
+
+.TP
+.B \-\-force\-adb\-forward
+Do not attempt to use "adb reverse" to connect to the device.
+
+.TP
+.B \-\-forward\-all\-clicks
+By default, right-click triggers BACK (or POWER on) and middle-click triggers HOME. This option disables these shortcuts and forward the clicks to the device instead.
+
+.TP
+.B \-f, \-\-fullscreen
+Start in fullscreen.
+
+.TP
+.B \-h, \-\-help
+Print this help.
+
+.TP
+.B \-K, \-\-hid\-keyboard
+Simulate a physical keyboard by using HID over AOAv2.
+
+This provides a better experience for IME users, and allows to generate non-ASCII characters, contrary to the default injection method.
+
+It may only work over USB, and is currently only supported on Linux.
+
+.TP
+.B \-\-legacy\-paste
+Inject computer clipboard text as a sequence of key events on Ctrl+v (like MOD+Shift+v).
+
+This is a workaround for some devices not behaving as expected when setting the device clipboard programmatically.
+
+.TP
+.BI "\-\-lock\-video\-orientation[=value]
+Lock video orientation to \fIvalue\fR. Possible values are "unlocked", "initial" (locked to the initial orientation), 0, 1, 2 and 3. Natural device orientation is 0, and each increment adds a 90 degrees rotation counterclockwise.
+
+Default is "unlocked".
+
+Passing the option without argument is equivalent to passing "initial".
+
+.TP
+.BI "\-\-max\-fps " value
+Limit the framerate of screen capture (officially supported since Android 10, but may work on earlier versions).
+
+.TP
+.BI "\-m, \-\-max\-size " value
+Limit both the width and height of the video to \fIvalue\fR. The other dimension is computed so that the device aspect\-ratio is preserved.
+
+Default is 0 (unlimited).
+
+.TP
+.B \-n, \-\-no\-control
+Disable device control (mirror the device in read\-only).
+
+.TP
+.B \-N, \-\-no\-display
+Do not display device (only when screen recording is enabled).
+
+.TP
+.B \-\-no\-key\-repeat
+Do not forward repeated key events when a key is held down.
+
+.TP
+.B \-\-no\-mipmaps
+If the renderer is OpenGL 3.0+ or OpenGL ES 2.0+, then mipmaps are automatically generated to improve downscaling quality. This option disables the generation of mipmaps.
+
+.TP
+.BI "\-p, \-\-port " port[:port]
+Set the TCP port (range) used by the client to listen.
+
+Default is 27183:27199.
+
+.TP
+.B \-\-power\-off\-on\-close
+Turn the device screen off when closing scrcpy.
+
+.TP
+.B \-\-prefer\-text
+Inject alpha characters and space as text events instead of key events.
+
+This avoids issues when combining multiple keys to enter special characters,
+but breaks the expected behavior of alpha keys in games (typically WASD).
+
+.TP
+.BI "\-\-push\-target " path
+Set the target directory for pushing files to the device by drag & drop. It is passed as\-is to "adb push".
+
+Default is "/sdcard/Download/".
+
+.TP
+.BI "\-r, \-\-record " file
+Record screen to
+.IR file .
+
+The format is determined by the
+.B \-\-record\-format
+option if set, or by the file extension (.mp4 or .mkv).
+
+.TP
+.BI "\-\-record\-format " format
+Force recording format (either mp4 or mkv).
+
+.TP
+.BI "\-\-render\-driver " name
+Request SDL to use the given render driver (this is just a hint).
+
+Supported names are currently "direct3d", "opengl", "opengles2", "opengles", "metal" and "software".
+
+.UR https://wiki.libsdl.org/SDL_HINT_RENDER_DRIVER
+.UE
+
+.TP
+.BI "\-\-rotation " value
+Set the initial display rotation. Possibles values are 0, 1, 2 and 3. Each increment adds a 90 degrees rotation counterclockwise.
+
+.TP
+.BI "\-s, \-\-serial " number
+The device serial number. Mandatory only if several devices are connected to adb.
+
+.TP
+.BI "\-\-shortcut\-mod " key[+...]][,...]
+Specify the modifiers to use for scrcpy shortcuts. Possible keys are "lctrl", "rctrl", "lalt", "ralt", "lsuper" and "rsuper".
+
+A shortcut can consist in several keys, separated by '+'. Several shortcuts can be specified, separated by ','.
+
+For example, to use either LCtrl+LAlt or LSuper for scrcpy shortcuts, pass "lctrl+lalt,lsuper".
+
+Default is "lalt,lsuper" (left-Alt or left-Super).
+
+.TP
+.B \-S, \-\-turn\-screen\-off
+Turn the device screen off immediately.
+
+.TP
+.B \-t, \-\-show\-touches
+Enable "show touches" on start, restore the initial value on exit.
+
+It only shows physical touches (not clicks from scrcpy).
+
+.TP
+.BI "\-\-v4l2-sink " /dev/videoN
+Output to v4l2loopback device.
+
+It requires to lock the video orientation (see \fB\-\-lock\-video\-orientation\fR).
+
+.TP
+.BI "\-\-v4l2-buffer " ms
+Add a buffering delay (in milliseconds) before pushing frames. This increases latency to compensate for jitter.
+
+This option is similar to \fB\-\-display\-buffer\fR, but specific to V4L2 sink.
+
+Default is 0 (no buffering).
+
+.TP
+.BI "\-V, \-\-verbosity " value
+Set the log level ("verbose", "debug", "info", "warn" or "error").
+
+Default is "info" for release builds, "debug" for debug builds.
+
+.TP
+.B \-v, \-\-version
+Print the version of scrcpy.
+
+.TP
+.B \-w, \-\-stay-awake
+Keep the device on while scrcpy is running, when the device is plugged in.
+
+.TP
+.B \-\-window\-borderless
+Disable window decorations (display borderless window).
+
+.TP
+.BI "\-\-window\-title " text
+Set a custom window title.
+
+.TP
+.BI "\-\-window\-x " value
+Set the initial window horizontal position.
+
+Default is "auto".
+
+.TP
+.BI "\-\-window\-y " value
+Set the initial window vertical position.
+
+Default is "auto".
+
+.TP
+.BI "\-\-window\-width " value
+Set the initial window width.
+
+Default is 0 (automatic).
+
+.TP
+.BI "\-\-window\-height " value
+Set the initial window height.
+
+Default is 0 (automatic).
+
+.SH SHORTCUTS
+
+In the following list, MOD is the shortcut modifier. By default, it's (left)
+Alt or (left) Super, but it can be configured by \fB\-\-shortcut\-mod\fR (see above).
+
+.TP
+.B MOD+f
+Switch fullscreen mode
+
+.TP
+.B MOD+Left
+Rotate display left
+
+.TP
+.B MOD+Right
+Rotate display right
+
+.TP
+.B MOD+g
+Resize window to 1:1 (pixel\-perfect)
+
+.TP
+.B MOD+w, Double\-click on black borders
+Resize window to remove black borders
+
+.TP
+.B MOD+h, Home, Middle\-click
+Click on HOME
+
+.TP
+.B MOD+b, MOD+Backspace, Right\-click (when screen is on)
+Click on BACK
+
+.TP
+.B MOD+s
+Click on APP_SWITCH
+
+.TP
+.B MOD+m
+Click on MENU
+
+.TP
+.B MOD+Up
+Click on VOLUME_UP
+
+.TP
+.B MOD+Down
+Click on VOLUME_DOWN
+
+.TP
+.B MOD+p
+Click on POWER (turn screen on/off)
+
+.TP
+.B Right\-click (when screen is off)
+Turn screen on
+
+.TP
+.B MOD+o
+Turn device screen off (keep mirroring)
+
+.TP
+.B MOD+Shift+o
+Turn device screen on
+
+.TP
+.B MOD+r
+Rotate device screen
+
+.TP
+.B MOD+n
+Expand notification panel
+
+.TP
+.B MOD+Shift+n
+Collapse notification panel
+
+.TP
+.B Mod+c
+Copy to clipboard (inject COPY keycode, Android >= 7 only)
+
+.TP
+.B Mod+x
+Cut to clipboard (inject CUT keycode, Android >= 7 only)
+
+.TP
+.B MOD+v
+Copy computer clipboard to device, then paste (inject PASTE keycode, Android >= 7 only)
+
+.TP
+.B MOD+Shift+v
+Inject computer clipboard text as a sequence of key events
+
+.TP
+.B MOD+i
+Enable/disable FPS counter (print frames/second in logs)
+
+.TP
+.B Ctrl+click-and-move
+Pinch-to-zoom from the center of the screen
+
+.TP
+.B Drag & drop APK file
+Install APK from computer
+
+.TP
+.B Drag & drop non-APK file
+Push file to device (see \fB\-\-push\-target\fR)
+
+
+.SH Environment variables
+
+.TP
+.B ADB
+Specify the path to adb.
+
+.TP
+.B SCRCPY_SERVER_PATH
+Specify the path to server binary.
+
+
+.SH AUTHORS
+.B scrcpy
+is written by Romain Vimont.
+
+This manual page was written by
+.MT mmyangfl@gmail.com
+Yangfl
+.ME
+for the Debian Project (and may be used by others).
+
+
+.SH "REPORTING BUGS"
+Report bugs to
+.UR https://github.com/Genymobile/scrcpy/issues
+.UE .
+
+.SH COPYRIGHT
+Copyright \(co 2018 Genymobile
+.UR https://www.genymobile.com
+Genymobile
+.UE
+
+Copyright \(co 2018\-2020
+.MT rom@rom1v.com
+Romain Vimont
+.ME
+
+Licensed under the Apache License, Version 2.0.
+
+.SH WWW
+.UR https://github.com/Genymobile/scrcpy
+.UE

app/src/adb.c

@@ -1,13 +1,13 @@
-#include "command.h"
+#include "adb.h"
 
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
-#include "common.h"
+#include "util/file.h"
-#include "log.h"
+#include "util/log.h"
-#include "str_util.h"
+#include "util/str_util.h"
 
 static const char *adb_command;
 
@@ -55,50 +55,99 @@ argv_to_string(const char *const *argv, char *buf, size_t bufsize) {
 }
 
 static void
-show_adb_err_msg(enum process_result err, const char *const argv[]) {
+show_adb_installation_msg() {
-    char buf[512];
+#ifndef __WINDOWS__
+    static const struct {
+        const char *binary;
+        const char *command;
+    } pkg_managers[] = {
+        {"apt", "apt install adb"},
+        {"apt-get", "apt-get install adb"},
+        {"brew", "brew cask install android-platform-tools"},
+        {"dnf", "dnf install android-tools"},
+        {"emerge", "emerge dev-util/android-tools"},
+        {"pacman", "pacman -S android-tools"},
+    };
+    for (size_t i = 0; i < ARRAY_LEN(pkg_managers); ++i) {
+        if (sc_file_executable_exists(pkg_managers[i].binary)) {
+            LOGI("You may install 'adb' by \"%s\"", pkg_managers[i].command);
+            return;
+        }
+    }
+#endif
+
+    LOGI("You may download and install 'adb' from "
+         "https://developer.android.com/studio/releases/platform-tools");
+}
+
+static void
+show_adb_err_msg(enum sc_process_result err, const char *const argv[]) {
+#define MAX_COMMAND_STRING_LEN 1024
+    char *buf = malloc(MAX_COMMAND_STRING_LEN);
+    if (!buf) {
+        LOGE("Failed to execute (could not allocate error message)");
+        return;
+    }
+
     switch (err) {
-        case PROCESS_ERROR_GENERIC:
+        case SC_PROCESS_ERROR_GENERIC:
-            argv_to_string(argv, buf, sizeof(buf));
+            argv_to_string(argv, buf, MAX_COMMAND_STRING_LEN);
             LOGE("Failed to execute: %s", buf);
             break;
-        case PROCESS_ERROR_MISSING_BINARY:
+        case SC_PROCESS_ERROR_MISSING_BINARY:
-            argv_to_string(argv, buf, sizeof(buf));
+            argv_to_string(argv, buf, MAX_COMMAND_STRING_LEN);
             LOGE("Command not found: %s", buf);
             LOGE("(make 'adb' accessible from your PATH or define its full"
                  "path in the ADB environment variable)");
+            show_adb_installation_msg();
             break;
-        case PROCESS_SUCCESS:
+        case SC_PROCESS_SUCCESS:
             // do nothing
             break;
     }
+
+    free(buf);
 }
 
-process_t
+sc_pid
-adb_execute(const char *serial, const char *const adb_cmd[], size_t len) {
+adb_execute_p(const char *serial, const char *const adb_cmd[],
-    const char *cmd[len + 4];
+              size_t len, sc_pipe *pin, sc_pipe *pout, sc_pipe *perr) {
     int i;
-    process_t process;
+    sc_pid pid;
-    cmd[0] = get_adb_command();
+
+    const char **argv = malloc((len + 4) * sizeof(*argv));
+    if (!argv) {
+        return SC_PROCESS_NONE;
+    }
+
+    argv[0] = get_adb_command();
     if (serial) {
-        cmd[1] = "-s";
+        argv[1] = "-s";
-        cmd[2] = serial;
+        argv[2] = serial;
         i = 3;
     } else {
         i = 1;
     }
 
-    memcpy(&cmd[i], adb_cmd, len * sizeof(const char *));
+    memcpy(&argv[i], adb_cmd, len * sizeof(const char *));
-    cmd[len + i] = NULL;
+    argv[len + i] = NULL;
-    enum process_result r = cmd_execute(cmd[0], cmd, &process);
+    enum sc_process_result r =
-    if (r != PROCESS_SUCCESS) {
+        sc_process_execute_p(argv, &pid, pin, pout, perr);
-        show_adb_err_msg(r, cmd);
+    if (r != SC_PROCESS_SUCCESS) {
-        return PROCESS_NONE;
+        show_adb_err_msg(r, argv);
+        pid = SC_PROCESS_NONE;
     }
-    return process;
+
+    free(argv);
+    return pid;
 }
 
-process_t
+sc_pid
+adb_execute(const char *serial, const char *const adb_cmd[], size_t len) {
+    return adb_execute_p(serial, adb_cmd, len, NULL, NULL, NULL);
+}
+
+sc_pid
 adb_forward(const char *serial, uint16_t local_port,
             const char *device_socket_name) {
     char local[4 + 5 + 1]; // tcp:PORT
@@ -109,7 +158,7 @@ adb_forward(const char *serial, uint16_t local_port,
     return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 }
 
-process_t
+sc_pid
 adb_forward_remove(const char *serial, uint16_t local_port) {
     char local[4 + 5 + 1]; // tcp:PORT
     sprintf(local, "tcp:%" PRIu16, local_port);
@@ -117,7 +166,7 @@ adb_forward_remove(const char *serial, uint16_t local_port) {
     return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 }
 
-process_t
+sc_pid
 adb_reverse(const char *serial, const char *device_socket_name,
             uint16_t local_port) {
     char local[4 + 5 + 1]; // tcp:PORT
@@ -128,7 +177,7 @@ adb_reverse(const char *serial, const char *device_socket_name,
     return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 }
 
-process_t
+sc_pid
 adb_reverse_remove(const char *serial, const char *device_socket_name) {
     char remote[108 + 14 + 1]; // localabstract:NAME
     snprintf(remote, sizeof(remote), "localabstract:%s", device_socket_name);
@@ -136,68 +185,93 @@ adb_reverse_remove(const char *serial, const char *device_socket_name) {
     return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 }
 
-process_t
+sc_pid
 adb_push(const char *serial, const char *local, const char *remote) {
 #ifdef __WINDOWS__
     // Windows will parse the string, so the paths must be quoted
     // (see sys/win/command.c)
     local = strquote(local);
     if (!local) {
-        return PROCESS_NONE;
+        return SC_PROCESS_NONE;
     }
     remote = strquote(remote);
     if (!remote) {
-        SDL_free((void *) local);
+        free((void *) local);
-        return PROCESS_NONE;
+        return SC_PROCESS_NONE;
     }
 #endif
 
     const char *const adb_cmd[] = {"push", local, remote};
-    process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
+    sc_pid pid = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 
 #ifdef __WINDOWS__
-    SDL_free((void *) remote);
+    free((void *) remote);
-    SDL_free((void *) local);
+    free((void *) local);
 #endif
 
-    return proc;
+    return pid;
 }
 
-process_t
+sc_pid
 adb_install(const char *serial, const char *local) {
 #ifdef __WINDOWS__
     // Windows will parse the string, so the local name must be quoted
     // (see sys/win/command.c)
     local = strquote(local);
     if (!local) {
-        return PROCESS_NONE;
+        return SC_PROCESS_NONE;
     }
 #endif
 
     const char *const adb_cmd[] = {"install", "-r", local};
-    process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
+    sc_pid pid = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 
 #ifdef __WINDOWS__
-    SDL_free((void *) local);
+    free((void *) local);
 #endif
 
-    return proc;
+    return pid;
 }
 
-bool
+static ssize_t
-process_check_success(process_t proc, const char *name) {
+adb_execute_for_output(const char *serial, const char *const adb_cmd[],
-    if (proc == PROCESS_NONE) {
+                       size_t adb_cmd_len, char *buf, size_t buf_len,
-        LOGE("Could not execute \"%s\"", name);
+                       const char *name) {
-        return false;
+    sc_pipe pout;
+    sc_pid pid = adb_execute_p(serial, adb_cmd, adb_cmd_len, NULL, &pout, NULL);
+
+    ssize_t r = sc_pipe_read_all(pout, buf, buf_len);
+    sc_pipe_close(pout);
+
+    if (!sc_process_check_success(pid, name, true)) {
+        return -1;
     }
-    exit_code_t exit_code;
+
-    if (!cmd_simple_wait(proc, &exit_code)) {
+    return r;
-        if (exit_code != NO_EXIT_CODE) {
+}
-            LOGE("\"%s\" returned with value %" PRIexitcode, name, exit_code);
+
-        } else {
+static size_t
-            LOGE("\"%s\" exited unexpectedly", name);
+truncate_first_line(char *data, size_t len) {
-        }
+    data[len - 1] = '\0';
-        return false;
+    char *eol = strpbrk(data, "\r\n");
-    }
+    if (eol) {
-    return true;
+        *eol = '\0';
+        len = eol - data;
+    }
+    return len;
+}
+
+char *
+adb_get_serialno(void) {
+    char buf[128];
+
+    const char *const adb_cmd[] = {"get-serialno"};
+    ssize_t r = adb_execute_for_output(NULL, adb_cmd, ARRAY_LEN(adb_cmd),
+                                       buf, sizeof(buf), "get-serialno");
+    if (r <= 0) {
+        return NULL;
+    }
+
+    truncate_first_line(buf, r);
+    return strdup(buf);
 }

app/src/adb.h

@@ -0,0 +1,42 @@
+#ifndef SC_ADB_H
+#define SC_ADB_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <inttypes.h>
+
+#include "util/process.h"
+
+sc_pid
+adb_execute(const char *serial, const char *const adb_cmd[], size_t len);
+
+sc_pid
+adb_execute_p(const char *serial, const char *const adb_cmd[],
+              size_t len, sc_pipe *pin, sc_pipe *pout, sc_pipe *perr);
+
+sc_pid
+adb_forward(const char *serial, uint16_t local_port,
+            const char *device_socket_name);
+
+sc_pid
+adb_forward_remove(const char *serial, uint16_t local_port);
+
+sc_pid
+adb_reverse(const char *serial, const char *device_socket_name,
+            uint16_t local_port);
+
+sc_pid
+adb_reverse_remove(const char *serial, const char *device_socket_name);
+
+sc_pid
+adb_push(const char *serial, const char *local, const char *remote);
+
+sc_pid
+adb_install(const char *serial, const char *local);
+
+// Return the result of "adb get-serialno".
+char *
+adb_get_serialno(void);
+
+#endif

app/src/android/input.h

@@ -21,7 +21,7 @@
 #define _ANDROID_INPUT_H
 
 /**
- * Meta key / modifer state.
+ * Meta key / modifier state.
  */
 enum android_metastate {
     /** No meta keys are pressed. */

app/src/aoa_hid.c

@@ -0,0 +1,385 @@
+#include "util/log.h"
+
+#include <assert.h>
+#include <stdio.h>
+
+#include "aoa_hid.h"
+
+// See <https://source.android.com/devices/accessories/aoa2#hid-support>.
+#define ACCESSORY_REGISTER_HID 54
+#define ACCESSORY_SET_HID_REPORT_DESC 56
+#define ACCESSORY_SEND_HID_EVENT 57
+#define ACCESSORY_UNREGISTER_HID 55
+
+#define DEFAULT_TIMEOUT 1000
+
+static void
+sc_hid_event_log(const struct sc_hid_event *event) {
+    // HID Event: [00] FF FF FF FF...
+    assert(event->size);
+    unsigned buffer_size = event->size * 3 + 1;
+    char *buffer = malloc(buffer_size);
+    if (!buffer) {
+        return;
+    }
+    for (unsigned i = 0; i < event->size; ++i) {
+        snprintf(buffer + i * 3, 4, " %02x", event->buffer[i]);
+    }
+    LOGV("HID Event: [%d]%s", event->accessory_id, buffer);
+    free(buffer);
+}
+
+void
+sc_hid_event_init(struct sc_hid_event *hid_event, uint16_t accessory_id,
+                  unsigned char *buffer, uint16_t buffer_size) {
+    hid_event->accessory_id = accessory_id;
+    hid_event->buffer = buffer;
+    hid_event->size = buffer_size;
+    hid_event->delay = 0;
+}
+
+void
+sc_hid_event_destroy(struct sc_hid_event *hid_event) {
+    free(hid_event->buffer);
+}
+
+static inline void
+log_libusb_error(enum libusb_error errcode) {
+    LOGW("libusb error: %s", libusb_strerror(errcode));
+}
+
+static bool
+accept_device(libusb_device *device, const char *serial) {
+    // do not log any USB error in this function, it is expected that many USB
+    // devices available on the computer have permission restrictions
+
+    struct libusb_device_descriptor desc;
+    libusb_get_device_descriptor(device, &desc);
+
+    if (!desc.iSerialNumber) {
+        return false;
+    }
+
+    libusb_device_handle *handle;
+    int result = libusb_open(device, &handle);
+    if (result < 0) {
+        return false;
+    }
+
+    char buffer[128];
+    result = libusb_get_string_descriptor_ascii(handle, desc.iSerialNumber,
+                                                (unsigned char *) buffer,
+                                                sizeof(buffer));
+    libusb_close(handle);
+    if (result < 0) {
+        return false;
+    }
+
+    buffer[sizeof(buffer) - 1] = '\0'; // just in case
+
+    // accept the device if its serial matches
+    return !strcmp(buffer, serial);
+}
+
+static libusb_device *
+sc_aoa_find_usb_device(const char *serial) {
+    if (!serial) {
+        return NULL;
+    }
+
+    libusb_device **list;
+    libusb_device *result = NULL;
+    ssize_t count = libusb_get_device_list(NULL, &list);
+    if (count < 0) {
+        log_libusb_error((enum libusb_error) count);
+        return NULL;
+    }
+
+    for (size_t i = 0; i < (size_t) count; ++i) {
+        libusb_device *device = list[i];
+
+        if (accept_device(device, serial)) {
+            result = libusb_ref_device(device);
+            break;
+        }
+    }
+    libusb_free_device_list(list, 1);
+    return result;
+}
+
+static int
+sc_aoa_open_usb_handle(libusb_device *device, libusb_device_handle **handle) {
+    int result = libusb_open(device, handle);
+    if (result < 0) {
+        log_libusb_error((enum libusb_error) result);
+        return result;
+    }
+    return 0;
+}
+
+bool
+sc_aoa_init(struct sc_aoa *aoa, const char *serial) {
+    cbuf_init(&aoa->queue);
+
+    if (!sc_mutex_init(&aoa->mutex)) {
+        return false;
+    }
+
+    if (!sc_cond_init(&aoa->event_cond)) {
+        sc_mutex_destroy(&aoa->mutex);
+        return false;
+    }
+
+    if (libusb_init(&aoa->usb_context) != LIBUSB_SUCCESS) {
+        sc_cond_destroy(&aoa->event_cond);
+        sc_mutex_destroy(&aoa->mutex);
+        return false;
+    }
+
+    aoa->usb_device = sc_aoa_find_usb_device(serial);
+    if (!aoa->usb_device) {
+        LOGW("USB device of serial %s not found", serial);
+        libusb_exit(aoa->usb_context);
+        sc_mutex_destroy(&aoa->mutex);
+        sc_cond_destroy(&aoa->event_cond);
+        return false;
+    }
+
+    if (sc_aoa_open_usb_handle(aoa->usb_device, &aoa->usb_handle) < 0) {
+        LOGW("Open USB handle failed");
+        libusb_unref_device(aoa->usb_device);
+        libusb_exit(aoa->usb_context);
+        sc_cond_destroy(&aoa->event_cond);
+        sc_mutex_destroy(&aoa->mutex);
+        return false;
+    }
+
+    aoa->stopped = false;
+
+    return true;
+}
+
+void
+sc_aoa_destroy(struct sc_aoa *aoa) {
+    // Destroy remaining events
+    struct sc_hid_event event;
+    while (cbuf_take(&aoa->queue, &event)) {
+        sc_hid_event_destroy(&event);
+    }
+
+    libusb_close(aoa->usb_handle);
+    libusb_unref_device(aoa->usb_device);
+    libusb_exit(aoa->usb_context);
+    sc_cond_destroy(&aoa->event_cond);
+    sc_mutex_destroy(&aoa->mutex);
+}
+
+static bool
+sc_aoa_register_hid(struct sc_aoa *aoa, uint16_t accessory_id,
+                    uint16_t report_desc_size) {
+    uint8_t request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR;
+    uint8_t request = ACCESSORY_REGISTER_HID;
+    // <https://source.android.com/devices/accessories/aoa2.html#hid-support>
+    // value (arg0): accessory assigned ID for the HID device
+    // index (arg1): total length of the HID report descriptor
+    uint16_t value = accessory_id;
+    uint16_t index = report_desc_size;
+    unsigned char *buffer = NULL;
+    uint16_t length = 0;
+    int result = libusb_control_transfer(aoa->usb_handle, request_type, request,
+                                         value, index, buffer, length,
+                                         DEFAULT_TIMEOUT);
+    if (result < 0) {
+        log_libusb_error((enum libusb_error) result);
+        return false;
+    }
+
+    return true;
+}
+
+static bool
+sc_aoa_set_hid_report_desc(struct sc_aoa *aoa, uint16_t accessory_id,
+                           const unsigned char *report_desc,
+                           uint16_t report_desc_size) {
+    uint8_t request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR;
+    uint8_t request = ACCESSORY_SET_HID_REPORT_DESC;
+    /**
+     * If the HID descriptor is longer than the endpoint zero max packet size,
+     * the descriptor will be sent in multiple ACCESSORY_SET_HID_REPORT_DESC
+     * commands. The data for the descriptor must be sent sequentially
+     * if multiple packets are needed.
+     * <https://source.android.com/devices/accessories/aoa2.html#hid-support>
+     *
+     * libusb handles packet abstraction internally, so we don't need to care
+     * about bMaxPacketSize0 here.
+     *
+     * See <https://libusb.sourceforge.io/api-1.0/libusb_packetoverflow.html>
+     */
+    // value (arg0): accessory assigned ID for the HID device
+    // index (arg1): offset of data (buffer) in descriptor
+    uint16_t value = accessory_id;
+    uint16_t index = 0;
+    // libusb_control_transfer expects a pointer to non-const
+    unsigned char *buffer = (unsigned char *) report_desc;
+    uint16_t length = report_desc_size;
+    int result = libusb_control_transfer(aoa->usb_handle, request_type, request,
+                                         value, index, buffer, length,
+                                         DEFAULT_TIMEOUT);
+    if (result < 0) {
+        log_libusb_error((enum libusb_error) result);
+        return false;
+    }
+
+    return true;
+}
+
+bool
+sc_aoa_setup_hid(struct sc_aoa *aoa, uint16_t accessory_id,
+                 const unsigned char *report_desc, uint16_t report_desc_size) {
+    bool ok = sc_aoa_register_hid(aoa, accessory_id, report_desc_size);
+    if (!ok) {
+        return false;
+    }
+
+    ok = sc_aoa_set_hid_report_desc(aoa, accessory_id, report_desc,
+                                    report_desc_size);
+    if (!ok) {
+        if (!sc_aoa_unregister_hid(aoa, accessory_id)) {
+            LOGW("Could not unregister HID");
+        }
+        return false;
+    }
+
+    return true;
+}
+
+static bool
+sc_aoa_send_hid_event(struct sc_aoa *aoa, const struct sc_hid_event *event) {
+    uint8_t request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR;
+    uint8_t request = ACCESSORY_SEND_HID_EVENT;
+    // <https://source.android.com/devices/accessories/aoa2.html#hid-support>
+    // value (arg0): accessory assigned ID for the HID device
+    // index (arg1): 0 (unused)
+    uint16_t value = event->accessory_id;
+    uint16_t index = 0;
+    unsigned char *buffer = event->buffer;
+    uint16_t length = event->size;
+    int result = libusb_control_transfer(aoa->usb_handle, request_type, request,
+                                         value, index, buffer, length,
+                                         DEFAULT_TIMEOUT);
+    if (result < 0) {
+        log_libusb_error((enum libusb_error) result);
+        return false;
+    }
+
+    return true;
+}
+
+bool
+sc_aoa_unregister_hid(struct sc_aoa *aoa, const uint16_t accessory_id) {
+    uint8_t request_type = LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR;
+    uint8_t request = ACCESSORY_UNREGISTER_HID;
+    // <https://source.android.com/devices/accessories/aoa2.html#hid-support>
+    // value (arg0): accessory assigned ID for the HID device
+    // index (arg1): 0
+    uint16_t value = accessory_id;
+    uint16_t index = 0;
+    unsigned char *buffer = NULL;
+    uint16_t length = 0;
+    int result = libusb_control_transfer(aoa->usb_handle, request_type, request,
+                                         value, index, buffer, length,
+                                         DEFAULT_TIMEOUT);
+    if (result < 0) {
+        log_libusb_error((enum libusb_error) result);
+        return false;
+    }
+
+    return true;
+}
+
+bool
+sc_aoa_push_hid_event(struct sc_aoa *aoa, const struct sc_hid_event *event) {
+    if (sc_get_log_level() <= SC_LOG_LEVEL_VERBOSE) {
+        sc_hid_event_log(event);
+    }
+
+    sc_mutex_lock(&aoa->mutex);
+    bool was_empty = cbuf_is_empty(&aoa->queue);
+    bool res = cbuf_push(&aoa->queue, *event);
+    if (was_empty) {
+        sc_cond_signal(&aoa->event_cond);
+    }
+    sc_mutex_unlock(&aoa->mutex);
+    return res;
+}
+
+static int
+run_aoa_thread(void *data) {
+    struct sc_aoa *aoa = data;
+
+    for (;;) {
+        sc_mutex_lock(&aoa->mutex);
+        while (!aoa->stopped && cbuf_is_empty(&aoa->queue)) {
+            sc_cond_wait(&aoa->event_cond, &aoa->mutex);
+        }
+        if (aoa->stopped) {
+            // Stop immediately, do not process further events
+            sc_mutex_unlock(&aoa->mutex);
+            break;
+        }
+        struct sc_hid_event event;
+        bool non_empty = cbuf_take(&aoa->queue, &event);
+        assert(non_empty);
+        (void) non_empty;
+
+        assert(event.delay >= 0);
+        if (event.delay) {
+            // Wait during the specified delay before injecting the HID event
+            sc_tick deadline = sc_tick_now() + event.delay;
+            bool timed_out = false;
+            while (!aoa->stopped && !timed_out) {
+                timed_out = !sc_cond_timedwait(&aoa->event_cond, &aoa->mutex,
+                                               deadline);
+            }
+            if (aoa->stopped) {
+                sc_mutex_unlock(&aoa->mutex);
+                break;
+            }
+        }
+
+        sc_mutex_unlock(&aoa->mutex);
+
+        bool ok = sc_aoa_send_hid_event(aoa, &event);
+        sc_hid_event_destroy(&event);
+        if (!ok) {
+            LOGW("Could not send HID event to USB device");
+        }
+    }
+    return 0;
+}
+
+bool
+sc_aoa_start(struct sc_aoa *aoa) {
+    LOGD("Starting AOA thread");
+
+    bool ok = sc_thread_create(&aoa->thread, run_aoa_thread, "aoa_thread", aoa);
+    if (!ok) {
+        LOGC("Could not start AOA thread");
+        return false;
+    }
+
+    return true;
+}
+
+void
+sc_aoa_stop(struct sc_aoa *aoa) {
+    sc_mutex_lock(&aoa->mutex);
+    aoa->stopped = true;
+    sc_cond_signal(&aoa->event_cond);
+    sc_mutex_unlock(&aoa->mutex);
+}
+
+void
+sc_aoa_join(struct sc_aoa *aoa) {
+    sc_thread_join(&aoa->thread, NULL);
+}

app/src/aoa_hid.h

@@ -0,0 +1,66 @@
+#ifndef SC_AOA_HID_H
+#define SC_AOA_HID_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <libusb-1.0/libusb.h>
+
+#include "util/cbuf.h"
+#include "util/thread.h"
+#include "util/tick.h"
+
+struct sc_hid_event {
+    uint16_t accessory_id;
+    unsigned char *buffer;
+    uint16_t size;
+    sc_tick delay;
+};
+
+// Takes ownership of buffer
+void
+sc_hid_event_init(struct sc_hid_event *hid_event, uint16_t accessory_id,
+                  unsigned char *buffer, uint16_t buffer_size);
+
+void
+sc_hid_event_destroy(struct sc_hid_event *hid_event);
+
+struct sc_hid_event_queue CBUF(struct sc_hid_event, 64);
+
+struct sc_aoa {
+    libusb_context *usb_context;
+    libusb_device *usb_device;
+    libusb_device_handle *usb_handle;
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond event_cond;
+    bool stopped;
+    struct sc_hid_event_queue queue;
+};
+
+bool
+sc_aoa_init(struct sc_aoa *aoa, const char *serial);
+
+void
+sc_aoa_destroy(struct sc_aoa *aoa);
+
+bool
+sc_aoa_start(struct sc_aoa *aoa);
+
+void
+sc_aoa_stop(struct sc_aoa *aoa);
+
+void
+sc_aoa_join(struct sc_aoa *aoa);
+
+bool
+sc_aoa_setup_hid(struct sc_aoa *aoa, uint16_t accessory_id,
+              const unsigned char *report_desc, uint16_t report_desc_size);
+
+bool
+sc_aoa_unregister_hid(struct sc_aoa *aoa, uint16_t accessory_id);
+
+bool
+sc_aoa_push_hid_event(struct sc_aoa *aoa, const struct sc_hid_event *event);
+
+#endif

app/src/cli.h

@@ -0,0 +1,27 @@
+#ifndef SCRCPY_CLI_H
+#define SCRCPY_CLI_H
+
+#include "common.h"
+
+#include <stdbool.h>
+
+#include "options.h"
+
+struct scrcpy_cli_args {
+    struct scrcpy_options opts;
+    bool help;
+    bool version;
+};
+
+void
+scrcpy_print_usage(const char *arg0);
+
+bool
+scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]);
+
+#ifdef SC_TEST
+bool
+sc_parse_shortcut_mods(const char *s, struct sc_shortcut_mods *mods);
+#endif
+
+#endif

app/src/clock.c

@@ -0,0 +1,111 @@
+#include "clock.h"
+
+#include "util/log.h"
+
+#define SC_CLOCK_NDEBUG // comment to debug
+
+void
+sc_clock_init(struct sc_clock *clock) {
+    clock->count = 0;
+    clock->head = 0;
+    clock->left_sum.system = 0;
+    clock->left_sum.stream = 0;
+    clock->right_sum.system = 0;
+    clock->right_sum.stream = 0;
+}
+
+// Estimate the affine function f(stream) = slope * stream + offset
+static void
+sc_clock_estimate(struct sc_clock *clock,
+                  double *out_slope, sc_tick *out_offset) {
+    assert(clock->count > 1); // two points are necessary
+
+    struct sc_clock_point left_avg = {
+        .system = clock->left_sum.system / (clock->count / 2),
+        .stream = clock->left_sum.stream / (clock->count / 2),
+    };
+    struct sc_clock_point right_avg = {
+        .system = clock->right_sum.system / ((clock->count + 1) / 2),
+        .stream = clock->right_sum.stream / ((clock->count + 1) / 2),
+    };
+
+    double slope = (double) (right_avg.system - left_avg.system)
+                 / (right_avg.stream - left_avg.stream);
+
+    if (clock->count < SC_CLOCK_RANGE) {
+        /* The first frames are typically received and decoded with more delay
+         * than the others, causing a wrong slope estimation on start. To
+         * compensate, assume an initial slope of 1, then progressively use the
+         * estimated slope. */
+        slope = (clock->count * slope + (SC_CLOCK_RANGE - clock->count))
+              / SC_CLOCK_RANGE;
+    }
+
+    struct sc_clock_point global_avg = {
+        .system = (clock->left_sum.system + clock->right_sum.system)
+                 / clock->count,
+        .stream = (clock->left_sum.stream + clock->right_sum.stream)
+                 / clock->count,
+    };
+
+    sc_tick offset = global_avg.system - (sc_tick) (global_avg.stream * slope);
+
+    *out_slope = slope;
+    *out_offset = offset;
+}
+
+void
+sc_clock_update(struct sc_clock *clock, sc_tick system, sc_tick stream) {
+    struct sc_clock_point *point = &clock->points[clock->head];
+
+    if (clock->count == SC_CLOCK_RANGE || clock->count & 1) {
+        // One point passes from the right sum to the left sum
+
+        unsigned mid;
+        if (clock->count == SC_CLOCK_RANGE) {
+            mid = (clock->head + SC_CLOCK_RANGE / 2) % SC_CLOCK_RANGE;
+        } else {
+            // Only for the first frames
+            mid = clock->count / 2;
+        }
+
+        struct sc_clock_point *mid_point = &clock->points[mid];
+        clock->left_sum.system += mid_point->system;
+        clock->left_sum.stream += mid_point->stream;
+        clock->right_sum.system -= mid_point->system;
+        clock->right_sum.stream -= mid_point->stream;
+    }
+
+    if (clock->count == SC_CLOCK_RANGE) {
+        // The current point overwrites the previous value in the circular
+        // array, update the left sum accordingly
+        clock->left_sum.system -= point->system;
+        clock->left_sum.stream -= point->stream;
+    } else {
+        ++clock->count;
+    }
+
+    point->system = system;
+    point->stream = stream;
+
+    clock->right_sum.system += system;
+    clock->right_sum.stream += stream;
+
+    clock->head = (clock->head + 1) % SC_CLOCK_RANGE;
+
+    if (clock->count > 1) {
+        // Update estimation
+        sc_clock_estimate(clock, &clock->slope, &clock->offset);
+
+#ifndef SC_CLOCK_NDEBUG
+        LOGD("Clock estimation: %g * pts + %" PRItick,
+             clock->slope, clock->offset);
+#endif
+    }
+}
+
+sc_tick
+sc_clock_to_system_time(struct sc_clock *clock, sc_tick stream) {
+    assert(clock->count > 1); // sc_clock_update() must have been called
+    return (sc_tick) (stream * clock->slope) + clock->offset;
+}

app/src/clock.h

@@ -0,0 +1,70 @@
+#ifndef SC_CLOCK_H
+#define SC_CLOCK_H
+
+#include "common.h"
+
+#include <assert.h>
+
+#include "util/tick.h"
+
+#define SC_CLOCK_RANGE 32
+static_assert(!(SC_CLOCK_RANGE & 1), "SC_CLOCK_RANGE must be even");
+
+struct sc_clock_point {
+    sc_tick system;
+    sc_tick stream;
+};
+
+/**
+ * The clock aims to estimate the affine relation between the stream (device)
+ * time and the system time:
+ *
+ *     f(stream) = slope * stream + offset
+ *
+ * To that end, it stores the SC_CLOCK_RANGE last clock points (the timestamps
+ * of a frame expressed both in stream time and system time) in a circular
+ * array.
+ *
+ * To estimate the slope, it splits the last SC_CLOCK_RANGE points into two
+ * sets of SC_CLOCK_RANGE/2 points, and computes their centroid ("average
+ * point"). The slope of the estimated affine function is that of the line
+ * passing through these two points.
+ *
+ * To estimate the offset, it computes the centroid of all the SC_CLOCK_RANGE
+ * points. The resulting affine function passes by this centroid.
+ *
+ * With a circular array, the rolling sums (and average) are quick to compute.
+ * In practice, the estimation is stable and the evolution is smooth.
+ */
+struct sc_clock {
+    // Circular array
+    struct sc_clock_point points[SC_CLOCK_RANGE];
+
+    // Number of points in the array (count <= SC_CLOCK_RANGE)
+    unsigned count;
+
+    // Index of the next point to write
+    unsigned head;
+
+    // Sum of the first count/2 points
+    struct sc_clock_point left_sum;
+
+    // Sum of the last (count+1)/2 points
+    struct sc_clock_point right_sum;
+
+    // Estimated slope and offset
+    // (computed on sc_clock_update(), used by sc_clock_to_system_time())
+    double slope;
+    sc_tick offset;
+};
+
+void
+sc_clock_init(struct sc_clock *clock);
+
+void
+sc_clock_update(struct sc_clock *clock, sc_tick system, sc_tick stream);
+
+sc_tick
+sc_clock_to_system_time(struct sc_clock *clock, sc_tick stream);
+
+#endif

app/src/command.h

@@ -1,86 +0,0 @@
-#ifndef COMMAND_H
-#define COMMAND_H
-
-#include <stdbool.h>
-#include <inttypes.h>
-
-#ifdef _WIN32
-
- // not needed here, but winsock2.h must never be included AFTER windows.h
-# include <winsock2.h>
-# include <windows.h>
-# define PATH_SEPARATOR '\\'
-# define PRIexitcode "lu"
-// <https://stackoverflow.com/a/44383330/1987178>
-# ifdef _WIN64
-#   define PRIsizet PRIu64
-# else
-#   define PRIsizet PRIu32
-# endif
-# define PROCESS_NONE NULL
-  typedef HANDLE process_t;
-  typedef DWORD exit_code_t;
-
-#else
-
-# include <sys/types.h>
-# define PATH_SEPARATOR '/'
-# define PRIsizet "zu"
-# define PRIexitcode "d"
-# define PROCESS_NONE -1
-  typedef pid_t process_t;
-  typedef int exit_code_t;
-
-#endif
-
-# define NO_EXIT_CODE -1
-
-enum process_result {
-    PROCESS_SUCCESS,
-    PROCESS_ERROR_GENERIC,
-    PROCESS_ERROR_MISSING_BINARY,
-};
-
-enum process_result
-cmd_execute(const char *path, const char *const argv[], process_t *process);
-
-bool
-cmd_terminate(process_t pid);
-
-bool
-cmd_simple_wait(process_t pid, exit_code_t *exit_code);
-
-process_t
-adb_execute(const char *serial, const char *const adb_cmd[], size_t len);
-
-process_t
-adb_forward(const char *serial, uint16_t local_port,
-            const char *device_socket_name);
-
-process_t
-adb_forward_remove(const char *serial, uint16_t local_port);
-
-process_t
-adb_reverse(const char *serial, const char *device_socket_name,
-            uint16_t local_port);
-
-process_t
-adb_reverse_remove(const char *serial, const char *device_socket_name);
-
-process_t
-adb_push(const char *serial, const char *local, const char *remote);
-
-process_t
-adb_install(const char *serial, const char *local);
-
-// convenience function to wait for a successful process execution
-// automatically log process errors with the provided process name
-bool
-process_check_success(process_t proc, const char *name);
-
-// return the absolute path of the executable (the scrcpy binary)
-// may be NULL on error; to be freed by SDL_free
-char *
-get_executable_path(void);
-
-#endif

app/src/common.h

@@ -1,28 +1,14 @@
 #ifndef COMMON_H
 #define COMMON_H
 
-#include <stdint.h>
+#include "config.h"
+#include "compat.h"
 
 #define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0]))
 #define MIN(X,Y) (X) < (Y) ? (X) : (Y)
 #define MAX(X,Y) (X) > (Y) ? (X) : (Y)
 
-struct size {
+#define container_of(ptr, type, member) \
-    uint16_t width;
+    ((type *) (((char *) (ptr)) - offsetof(type, member)))
-    uint16_t height;
-};
-
-struct point {
-    int32_t x;
-    int32_t y;
-};
-
-struct position {
-    // The video screen size may be different from the real device screen size,
-    // so store to which size the absolute position apply, to scale it
-    // accordingly.
-    struct size screen_size;
-    struct point point;
-};
 
 #endif

app/src/compat.c

@@ -0,0 +1,14 @@
+#include "compat.h"
+
+#include "config.h"
+
+#ifndef HAVE_STRDUP
+char *strdup(const char *s) {
+    size_t size = strlen(s) + 1;
+    char *dup = malloc(size);
+    if (dup) {
+        memcpy(dup, s, size);
+    }
+    return dup;
+}
+#endif

app/src/compat.h

@@ -1,19 +1,16 @@
 #ifndef COMPAT_H
 #define COMPAT_H
 
+#define _POSIX_C_SOURCE 200809L
+#define _XOPEN_SOURCE 700
+#define _GNU_SOURCE
+#ifdef __APPLE__
+# define _DARWIN_C_SOURCE
+#endif
+
 #include <libavformat/version.h>
 #include <SDL2/SDL_version.h>
 
-// In ffmpeg/doc/APIchanges:
-// 2016-04-11 - 6f69f7a / 9200514 - lavf 57.33.100 / 57.5.0 - avformat.h
-//   Add AVStream.codecpar, deprecate AVStream.codec.
-#if    (LIBAVFORMAT_VERSION_MICRO >= 100 /* FFmpeg */ && \
-        LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 33, 100)) \
-    || (LIBAVFORMAT_VERSION_MICRO < 100 && /* Libav */ \
-        LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 5, 0))
-# define SCRCPY_LAVF_HAS_NEW_CODEC_PARAMS_API
-#endif
-
 // In ffmpeg/doc/APIchanges:
 // 2018-02-06 - 0694d87024 - lavf 58.9.100 - avformat.h
 //   Deprecate use of av_register_input_format(), av_register_output_format(),
@@ -25,13 +22,16 @@
 # define SCRCPY_LAVF_REQUIRES_REGISTER_ALL
 #endif
 
+
 // In ffmpeg/doc/APIchanges:
-// 2016-04-21 - 7fc329e - lavc 57.37.100 - avcodec.h
+// 2018-01-28 - ea3672b7d6 - lavf 58.7.100 - avformat.h
-//   Add a new audio/video encoding and decoding API with decoupled input
+//   Deprecate AVFormatContext filename field which had limited length, use the
-//   and output -- avcodec_send_packet(), avcodec_receive_frame(),
+//   new dynamically allocated url field instead.
-//   avcodec_send_frame() and avcodec_receive_packet().
+//
-#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 37, 100)
+// 2018-01-28 - ea3672b7d6 - lavf 58.7.100 - avformat.h
-# define SCRCPY_LAVF_HAS_NEW_ENCODING_DECODING_API
+//   Add url field to AVFormatContext and add ff_format_set_url helper function.
+#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(58, 7, 100)
+# define SCRCPY_LAVF_HAS_AVFORMATCONTEXT_URL
 #endif
 
 #if SDL_VERSION_ATLEAST(2, 0, 5)
@@ -43,9 +43,18 @@
 # define SCRCPY_SDL_HAS_WINDOW_ALWAYS_ON_TOP
 #endif
 
+#if SDL_VERSION_ATLEAST(2, 0, 6)
+// <https://github.com/libsdl-org/SDL/commit/d7a318de563125e5bb465b1000d6bc9576fbc6fc>
+# define SCRCPY_SDL_HAS_HINT_TOUCH_MOUSE_EVENTS
+#endif
+
 #if SDL_VERSION_ATLEAST(2, 0, 8)
 // <https://hg.libsdl.org/SDL/rev/dfde5d3f9781>
 # define SCRCPY_SDL_HAS_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR
 #endif
 
+#ifndef HAVE_STRDUP
+char *strdup(const char *s);
+#endif
+
 #endif

app/src/control_msg.c

@@ -1,13 +1,62 @@
 #include "control_msg.h"
 
+#include <assert.h>
+#include <inttypes.h>
+#include <stdlib.h>
 #include <string.h>
 
-#include "buffer_util.h"
+#include "util/buffer_util.h"
-#include "log.h"
+#include "util/log.h"
-#include "str_util.h"
+#include "util/str_util.h"
+
+/**
+ * Map an enum value to a string based on an array, without crashing on an
+ * out-of-bounds index.
+ */
+#define ENUM_TO_LABEL(labels, value) \
+    ((size_t) (value) < ARRAY_LEN(labels) ? labels[value] : "???")
+
+#define KEYEVENT_ACTION_LABEL(value) \
+    ENUM_TO_LABEL(android_keyevent_action_labels, value)
+
+#define MOTIONEVENT_ACTION_LABEL(value) \
+    ENUM_TO_LABEL(android_motionevent_action_labels, value)
+
+#define SCREEN_POWER_MODE_LABEL(value) \
+    ENUM_TO_LABEL(screen_power_mode_labels, value)
+
+static const char *const android_keyevent_action_labels[] = {
+    "down",
+    "up",
+    "multi",
+};
+
+static const char *const android_motionevent_action_labels[] = {
+    "down",
+    "up",
+    "move",
+    "cancel",
+    "outside",
+    "ponter-down",
+    "pointer-up",
+    "hover-move",
+    "scroll",
+    "hover-enter"
+    "hover-exit",
+    "btn-press",
+    "btn-release",
+};
+
+static const char *const screen_power_mode_labels[] = {
+    "off",
+    "doze",
+    "normal",
+    "doze-suspend",
+    "suspend",
+};
 
 static void
-write_position(uint8_t *buf, const struct position *position) {
+write_position(uint8_t *buf, const struct sc_position *position) {
     buffer_write32be(&buf[0], position->point.x);
     buffer_write32be(&buf[4], position->point.y);
     buffer_write16be(&buf[8], position->screen_size.width);
@@ -18,9 +67,19 @@ write_position(uint8_t *buf, const struct position *position) {
 static size_t
 write_string(const char *utf8, size_t max_len, unsigned char *buf) {
     size_t len = utf8_truncation_index(utf8, max_len);
-    buffer_write16be(buf, (uint16_t) len);
+    buffer_write32be(buf, len);
-    memcpy(&buf[2], utf8, len);
+    memcpy(&buf[4], utf8, len);
-    return 2 + len;
+    return 4 + len;
+}
+
+static uint16_t
+to_fixed_point_16(float f) {
+    assert(f >= 0.0f && f <= 1.0f);
+    uint32_t u = f * 0x1p16f; // 2^16
+    if (u >= 0xffff) {
+        u = 0xffff;
+    }
+    return (uint16_t) u;
 }
 
 size_t
@@ -30,18 +89,24 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
         case CONTROL_MSG_TYPE_INJECT_KEYCODE:
             buf[1] = msg->inject_keycode.action;
             buffer_write32be(&buf[2], msg->inject_keycode.keycode);
-            buffer_write32be(&buf[6], msg->inject_keycode.metastate);
+            buffer_write32be(&buf[6], msg->inject_keycode.repeat);
-            return 10;
+            buffer_write32be(&buf[10], msg->inject_keycode.metastate);
+            return 14;
         case CONTROL_MSG_TYPE_INJECT_TEXT: {
-            size_t len = write_string(msg->inject_text.text,
+            size_t len =
-                                      CONTROL_MSG_TEXT_MAX_LENGTH, &buf[1]);
+                write_string(msg->inject_text.text,
+                             CONTROL_MSG_INJECT_TEXT_MAX_LENGTH, &buf[1]);
             return 1 + len;
         }
-        case CONTROL_MSG_TYPE_INJECT_MOUSE_EVENT:
+        case CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT:
-            buf[1] = msg->inject_mouse_event.action;
+            buf[1] = msg->inject_touch_event.action;
-            buffer_write32be(&buf[2], msg->inject_mouse_event.buttons);
+            buffer_write64be(&buf[2], msg->inject_touch_event.pointer_id);
-            write_position(&buf[6], &msg->inject_mouse_event.position);
+            write_position(&buf[10], &msg->inject_touch_event.position);
-            return 18;
+            uint16_t pressure =
+                to_fixed_point_16(msg->inject_touch_event.pressure);
+            buffer_write16be(&buf[22], pressure);
+            buffer_write32be(&buf[24], msg->inject_touch_event.buttons);
+            return 28;
         case CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT:
             write_position(&buf[1], &msg->inject_scroll_event.position);
             buffer_write32be(&buf[13],
@@ -49,19 +114,24 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
             buffer_write32be(&buf[17],
                              (uint32_t) msg->inject_scroll_event.vscroll);
             return 21;
+        case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
+            buf[1] = msg->inject_keycode.action;
+            return 2;
         case CONTROL_MSG_TYPE_SET_CLIPBOARD: {
-            size_t len = write_string(msg->inject_text.text,
+            buf[1] = !!msg->set_clipboard.paste;
+            size_t len = write_string(msg->set_clipboard.text,
                                       CONTROL_MSG_CLIPBOARD_TEXT_MAX_LENGTH,
-                                      &buf[1]);
+                                      &buf[2]);
-            return 1 + len;
+            return 2 + len;
         }
         case CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE:
             buf[1] = msg->set_screen_power_mode.mode;
             return 2;
-        case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
         case CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL:
-        case CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL:
+        case CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL:
+        case CONTROL_MSG_TYPE_COLLAPSE_PANELS:
         case CONTROL_MSG_TYPE_GET_CLIPBOARD:
+        case CONTROL_MSG_TYPE_ROTATE_DEVICE:
             // no additional data
             return 1;
         default:
@@ -70,14 +140,102 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
     }
 }
 
+void
+control_msg_log(const struct control_msg *msg) {
+#define LOG_CMSG(fmt, ...) LOGV("input: " fmt, ## __VA_ARGS__)
+    switch (msg->type) {
+        case CONTROL_MSG_TYPE_INJECT_KEYCODE:
+            LOG_CMSG("key %-4s code=%d repeat=%" PRIu32 " meta=%06lx",
+                     KEYEVENT_ACTION_LABEL(msg->inject_keycode.action),
+                     (int) msg->inject_keycode.keycode,
+                     msg->inject_keycode.repeat,
+                     (long) msg->inject_keycode.metastate);
+            break;
+        case CONTROL_MSG_TYPE_INJECT_TEXT:
+            LOG_CMSG("text \"%s\"", msg->inject_text.text);
+            break;
+        case CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT: {
+            int action = msg->inject_touch_event.action
+                       & AMOTION_EVENT_ACTION_MASK;
+            uint64_t id = msg->inject_touch_event.pointer_id;
+            if (id == POINTER_ID_MOUSE || id == POINTER_ID_VIRTUAL_FINGER) {
+                // string pointer id
+                LOG_CMSG("touch [id=%s] %-4s position=%" PRIi32 ",%" PRIi32
+                             " pressure=%g buttons=%06lx",
+                         id == POINTER_ID_MOUSE ? "mouse" : "vfinger",
+                         MOTIONEVENT_ACTION_LABEL(action),
+                         msg->inject_touch_event.position.point.x,
+                         msg->inject_touch_event.position.point.y,
+                         msg->inject_touch_event.pressure,
+                         (long) msg->inject_touch_event.buttons);
+            } else {
+                // numeric pointer id
+#ifndef __WIN32
+# define PRIu64_ PRIu64
+#else
+# define PRIu64_ "I64u"  // Windows...
+#endif
+                LOG_CMSG("touch [id=%" PRIu64_ "] %-4s position=%" PRIi32 ",%"
+                             PRIi32 " pressure=%g buttons=%06lx",
+                         id,
+                         MOTIONEVENT_ACTION_LABEL(action),
+                         msg->inject_touch_event.position.point.x,
+                         msg->inject_touch_event.position.point.y,
+                         msg->inject_touch_event.pressure,
+                         (long) msg->inject_touch_event.buttons);
+            }
+            break;
+        }
+        case CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT:
+            LOG_CMSG("scroll position=%" PRIi32 ",%" PRIi32 " hscroll=%" PRIi32
+                         " vscroll=%" PRIi32,
+                     msg->inject_scroll_event.position.point.x,
+                     msg->inject_scroll_event.position.point.y,
+                     msg->inject_scroll_event.hscroll,
+                     msg->inject_scroll_event.vscroll);
+            break;
+        case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
+            LOG_CMSG("back-or-screen-on %s",
+                     KEYEVENT_ACTION_LABEL(msg->inject_keycode.action));
+            break;
+        case CONTROL_MSG_TYPE_SET_CLIPBOARD:
+            LOG_CMSG("clipboard %s \"%s\"",
+                     msg->set_clipboard.paste ? "paste" : "copy",
+                     msg->set_clipboard.text);
+            break;
+        case CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE:
+            LOG_CMSG("power mode %s",
+                     SCREEN_POWER_MODE_LABEL(msg->set_screen_power_mode.mode));
+            break;
+        case CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL:
+            LOG_CMSG("expand notification panel");
+            break;
+        case CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL:
+            LOG_CMSG("expand settings panel");
+            break;
+        case CONTROL_MSG_TYPE_COLLAPSE_PANELS:
+            LOG_CMSG("collapse panels");
+            break;
+        case CONTROL_MSG_TYPE_GET_CLIPBOARD:
+            LOG_CMSG("get clipboard");
+            break;
+        case CONTROL_MSG_TYPE_ROTATE_DEVICE:
+            LOG_CMSG("rotate device");
+            break;
+        default:
+            LOG_CMSG("unknown type: %u", (unsigned) msg->type);
+            break;
+    }
+}
+
 void
 control_msg_destroy(struct control_msg *msg) {
     switch (msg->type) {
         case CONTROL_MSG_TYPE_INJECT_TEXT:
-            SDL_free(msg->inject_text.text);
+            free(msg->inject_text.text);
             break;
         case CONTROL_MSG_TYPE_SET_CLIPBOARD:
-            SDL_free(msg->set_clipboard.text);
+            free(msg->set_clipboard.text);
             break;
         default:
             // do nothing

app/src/control_msg.h

@@ -1,30 +1,38 @@
 #ifndef CONTROLMSG_H
 #define CONTROLMSG_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include "android/input.h"
 #include "android/keycodes.h"
-#include "common.h"
+#include "coords.h"
 
-#define CONTROL_MSG_TEXT_MAX_LENGTH 300
+#define CONTROL_MSG_MAX_SIZE (1 << 18) // 256k
-#define CONTROL_MSG_CLIPBOARD_TEXT_MAX_LENGTH 4093
+
-#define CONTROL_MSG_SERIALIZED_MAX_SIZE \
+#define CONTROL_MSG_INJECT_TEXT_MAX_LENGTH 300
-    (3 + CONTROL_MSG_CLIPBOARD_TEXT_MAX_LENGTH)
+// type: 1 byte; paste flag: 1 byte; length: 4 bytes
+#define CONTROL_MSG_CLIPBOARD_TEXT_MAX_LENGTH (CONTROL_MSG_MAX_SIZE - 6)
+
+#define POINTER_ID_MOUSE UINT64_C(-1)
+#define POINTER_ID_VIRTUAL_FINGER UINT64_C(-2)
 
 enum control_msg_type {
     CONTROL_MSG_TYPE_INJECT_KEYCODE,
     CONTROL_MSG_TYPE_INJECT_TEXT,
-    CONTROL_MSG_TYPE_INJECT_MOUSE_EVENT,
+    CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
     CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
     CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
     CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL,
-    CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL,
+    CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL,
+    CONTROL_MSG_TYPE_COLLAPSE_PANELS,
     CONTROL_MSG_TYPE_GET_CLIPBOARD,
     CONTROL_MSG_TYPE_SET_CLIPBOARD,
     CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE,
+    CONTROL_MSG_TYPE_ROTATE_DEVICE,
 };
 
 enum screen_power_mode {
@@ -39,23 +47,31 @@ struct control_msg {
         struct {
             enum android_keyevent_action action;
             enum android_keycode keycode;
+            uint32_t repeat;
             enum android_metastate metastate;
         } inject_keycode;
         struct {
-            char *text; // owned, to be freed by SDL_free()
+            char *text; // owned, to be freed by free()
         } inject_text;
         struct {
             enum android_motionevent_action action;
             enum android_motionevent_buttons buttons;
-            struct position position;
+            uint64_t pointer_id;
-        } inject_mouse_event;
+            struct sc_position position;
+            float pressure;
+        } inject_touch_event;
         struct {
-            struct position position;
+            struct sc_position position;
             int32_t hscroll;
             int32_t vscroll;
         } inject_scroll_event;
         struct {
-            char *text; // owned, to be freed by SDL_free()
+            enum android_keyevent_action action; // action for the BACK key
+            // screen may only be turned on on ACTION_DOWN
+        } back_or_screen_on;
+        struct {
+            char *text; // owned, to be freed by free()
+            bool paste;
         } set_clipboard;
         struct {
             enum screen_power_mode mode;
@@ -63,11 +79,14 @@ struct control_msg {
     };
 };
 
-// buf size must be at least CONTROL_MSG_SERIALIZED_MAX_SIZE
+// buf size must be at least CONTROL_MSG_MAX_SIZE
 // return the number of bytes written
 size_t
 control_msg_serialize(const struct control_msg *msg, unsigned char *buf);
 
+void
+control_msg_log(const struct control_msg *msg);
+
 void
 control_msg_destroy(struct control_msg *msg);
 

app/src/controller.c

@@ -1,27 +1,28 @@
 #include "controller.h"
 
-#include <SDL2/SDL_assert.h>
+#include <assert.h>
 
-#include "config.h"
+#include "util/log.h"
-#include "lock_util.h"
-#include "log.h"
 
 bool
-controller_init(struct controller *controller, socket_t control_socket) {
+controller_init(struct controller *controller, sc_socket control_socket) {
     cbuf_init(&controller->queue);
 
-    if (!receiver_init(&controller->receiver, control_socket)) {
+    bool ok = receiver_init(&controller->receiver, control_socket);
+    if (!ok) {
         return false;
     }
 
-    if (!(controller->mutex = SDL_CreateMutex())) {
+    ok = sc_mutex_init(&controller->mutex);
+    if (!ok) {
         receiver_destroy(&controller->receiver);
         return false;
     }
 
-    if (!(controller->msg_cond = SDL_CreateCond())) {
+    ok = sc_cond_init(&controller->msg_cond);
+    if (!ok) {
         receiver_destroy(&controller->receiver);
-        SDL_DestroyMutex(controller->mutex);
+        sc_mutex_destroy(&controller->mutex);
         return false;
     }
 
@@ -33,8 +34,8 @@ controller_init(struct controller *controller, socket_t control_socket) {
 
 void
 controller_destroy(struct controller *controller) {
-    SDL_DestroyCond(controller->msg_cond);
+    sc_cond_destroy(&controller->msg_cond);
-    SDL_DestroyMutex(controller->mutex);
+    sc_mutex_destroy(&controller->mutex);
 
     struct control_msg msg;
     while (cbuf_take(&controller->queue, &msg)) {
@@ -46,27 +47,31 @@ controller_destroy(struct controller *controller) {
 
 bool
 controller_push_msg(struct controller *controller,
-                      const struct control_msg *msg) {
+                    const struct control_msg *msg) {
-    mutex_lock(controller->mutex);
+    if (sc_get_log_level() <= SC_LOG_LEVEL_VERBOSE) {
+        control_msg_log(msg);
+    }
+
+    sc_mutex_lock(&controller->mutex);
     bool was_empty = cbuf_is_empty(&controller->queue);
     bool res = cbuf_push(&controller->queue, *msg);
     if (was_empty) {
-        cond_signal(controller->msg_cond);
+        sc_cond_signal(&controller->msg_cond);
     }
-    mutex_unlock(controller->mutex);
+    sc_mutex_unlock(&controller->mutex);
     return res;
 }
 
 static bool
-process_msg(struct controller *controller,
+process_msg(struct controller *controller, const struct control_msg *msg) {
-              const struct control_msg *msg) {
+    static unsigned char serialized_msg[CONTROL_MSG_MAX_SIZE];
-    unsigned char serialized_msg[CONTROL_MSG_SERIALIZED_MAX_SIZE];
+    size_t length = control_msg_serialize(msg, serialized_msg);
-    int length = control_msg_serialize(msg, serialized_msg);
     if (!length) {
         return false;
     }
-    int w = net_send_all(controller->control_socket, serialized_msg, length);
+    ssize_t w =
-    return w == length;
+        net_send_all(controller->control_socket, serialized_msg, length);
+    return (size_t) w == length;
 }
 
 static int
@@ -74,19 +79,20 @@ run_controller(void *data) {
     struct controller *controller = data;
 
     for (;;) {
-        mutex_lock(controller->mutex);
+        sc_mutex_lock(&controller->mutex);
         while (!controller->stopped && cbuf_is_empty(&controller->queue)) {
-            cond_wait(controller->msg_cond, controller->mutex);
+            sc_cond_wait(&controller->msg_cond, &controller->mutex);
         }
         if (controller->stopped) {
             // stop immediately, do not process further msgs
-            mutex_unlock(controller->mutex);
+            sc_mutex_unlock(&controller->mutex);
             break;
         }
         struct control_msg msg;
         bool non_empty = cbuf_take(&controller->queue, &msg);
-        SDL_assert(non_empty);
+        assert(non_empty);
-        mutex_unlock(controller->mutex);
+        (void) non_empty;
+        sc_mutex_unlock(&controller->mutex);
 
         bool ok = process_msg(controller, &msg);
         control_msg_destroy(&msg);
@@ -102,16 +108,16 @@ bool
 controller_start(struct controller *controller) {
     LOGD("Starting controller thread");
 
-    controller->thread = SDL_CreateThread(run_controller, "controller",
+    bool ok = sc_thread_create(&controller->thread, run_controller,
-                                          controller);
+                               "controller", controller);
-    if (!controller->thread) {
+    if (!ok) {
         LOGC("Could not start controller thread");
         return false;
     }
 
     if (!receiver_start(&controller->receiver)) {
         controller_stop(controller);
-        SDL_WaitThread(controller->thread, NULL);
+        sc_thread_join(&controller->thread, NULL);
         return false;
     }
 
@@ -120,14 +126,14 @@ controller_start(struct controller *controller) {
 
 void
 controller_stop(struct controller *controller) {
-    mutex_lock(controller->mutex);
+    sc_mutex_lock(&controller->mutex);
     controller->stopped = true;
-    cond_signal(controller->msg_cond);
+    sc_cond_signal(&controller->msg_cond);
-    mutex_unlock(controller->mutex);
+    sc_mutex_unlock(&controller->mutex);
 }
 
 void
 controller_join(struct controller *controller) {
-    SDL_WaitThread(controller->thread, NULL);
+    sc_thread_join(&controller->thread, NULL);
     receiver_join(&controller->receiver);
 }

app/src/controller.h

@@ -1,29 +1,30 @@
 #ifndef CONTROLLER_H
 #define CONTROLLER_H
 
-#include <stdbool.h>
+#include "common.h"
-#include <SDL2/SDL_mutex.h>
+
-#include <SDL2/SDL_thread.h>
+#include <stdbool.h>
 
-#include "cbuf.h"
 #include "control_msg.h"
-#include "net.h"
 #include "receiver.h"
+#include "util/cbuf.h"
+#include "util/net.h"
+#include "util/thread.h"
 
 struct control_msg_queue CBUF(struct control_msg, 64);
 
 struct controller {
-    socket_t control_socket;
+    sc_socket control_socket;
-    SDL_Thread *thread;
+    sc_thread thread;
-    SDL_mutex *mutex;
+    sc_mutex mutex;
-    SDL_cond *msg_cond;
+    sc_cond msg_cond;
     bool stopped;
     struct control_msg_queue queue;
     struct receiver receiver;
 };
 
 bool
-controller_init(struct controller *controller, socket_t control_socket);
+controller_init(struct controller *controller, sc_socket control_socket);
 
 void
 controller_destroy(struct controller *controller);

app/src/convert.h

@@ -1,41 +0,0 @@
-#ifndef CONVERT_H
-#define CONVERT_H
-
-#include <stdbool.h>
-#include <SDL2/SDL_events.h>
-
-#include "control_msg.h"
-
-struct complete_mouse_motion_event {
-    SDL_MouseMotionEvent *mouse_motion_event;
-    struct size screen_size;
-};
-
-struct complete_mouse_wheel_event {
-    SDL_MouseWheelEvent *mouse_wheel_event;
-    struct point position;
-};
-
-bool
-input_key_from_sdl_to_android(const SDL_KeyboardEvent *from,
-                              struct control_msg *to);
-
-bool
-mouse_button_from_sdl_to_android(const SDL_MouseButtonEvent *from,
-                                 struct size screen_size,
-                                 struct control_msg *to);
-
-// the video size may be different from the real device size, so we need the
-// size to which the absolute position apply, to scale it accordingly
-bool
-mouse_motion_from_sdl_to_android(const SDL_MouseMotionEvent *from,
-                                 struct size screen_size,
-                                 struct control_msg *to);
-
-// on Android, a scroll event requires the current mouse position
-bool
-mouse_wheel_from_sdl_to_android(const SDL_MouseWheelEvent *from,
-                                struct position position,
-                                struct control_msg *to);
-
-#endif

app/src/coords.h

@@ -0,0 +1,24 @@
+#ifndef SC_COORDS
+#define SC_COORDS
+
+#include <stdint.h>
+
+struct sc_size {
+    uint16_t width;
+    uint16_t height;
+};
+
+struct sc_point {
+    int32_t x;
+    int32_t y;
+};
+
+struct sc_position {
+    // The video screen size may be different from the real device screen size,
+    // so store to which size the absolute position apply, to scale it
+    // accordingly.
+    struct sc_size screen_size;
+    struct sc_point point;
+};
+
+#endif

app/src/decoder.c

@@ -1,44 +1,44 @@
 #include "decoder.h"
 
+#include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
-#include <libavutil/time.h>
-#include <SDL2/SDL_assert.h>
-#include <SDL2/SDL_events.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
-#include <unistd.h>
 
-#include "compat.h"
-#include "config.h"
-#include "buffer_util.h"
 #include "events.h"
-#include "lock_util.h"
-#include "log.h"
-#include "recorder.h"
 #include "video_buffer.h"
+#include "trait/frame_sink.h"
+#include "util/log.h"
+
+/** Downcast packet_sink to decoder */
+#define DOWNCAST(SINK) container_of(SINK, struct decoder, packet_sink)
 
-// set the decoded frame as ready for rendering, and notify
 static void
-push_frame(struct decoder *decoder) {
+decoder_close_first_sinks(struct decoder *decoder, unsigned count) {
-    bool previous_frame_skipped;
+    while (count) {
-    video_buffer_offer_decoded_frame(decoder->video_buffer,
+        struct sc_frame_sink *sink = decoder->sinks[--count];
-                                     &previous_frame_skipped);
+        sink->ops->close(sink);
-    if (previous_frame_skipped) {
-        // the previous EVENT_NEW_FRAME will consume this frame
-        return;
     }
-    static SDL_Event new_frame_event = {
-        .type = EVENT_NEW_FRAME,
-    };
-    SDL_PushEvent(&new_frame_event);
 }
 
-void
+static inline void
-decoder_init(struct decoder *decoder, struct video_buffer *vb) {
+decoder_close_sinks(struct decoder *decoder) {
-    decoder->video_buffer = vb;
+    decoder_close_first_sinks(decoder, decoder->sink_count);
 }
 
-bool
+static bool
+decoder_open_sinks(struct decoder *decoder) {
+    for (unsigned i = 0; i < decoder->sink_count; ++i) {
+        struct sc_frame_sink *sink = decoder->sinks[i];
+        if (!sink->ops->open(sink)) {
+            LOGE("Could not open frame sink %d", i);
+            decoder_close_first_sinks(decoder, i);
+            return false;
+        }
+    }
+
+    return true;
+}
+
+static bool
 decoder_open(struct decoder *decoder, const AVCodec *codec) {
     decoder->codec_ctx = avcodec_alloc_context3(codec);
     if (!decoder->codec_ctx) {
@@ -52,52 +52,110 @@ decoder_open(struct decoder *decoder, const AVCodec *codec) {
         return false;
     }
 
+    decoder->frame = av_frame_alloc();
+    if (!decoder->frame) {
+        LOGE("Could not create decoder frame");
+        avcodec_close(decoder->codec_ctx);
+        avcodec_free_context(&decoder->codec_ctx);
+        return false;
+    }
+
+    if (!decoder_open_sinks(decoder)) {
+        LOGE("Could not open decoder sinks");
+        av_frame_free(&decoder->frame);
+        avcodec_close(decoder->codec_ctx);
+        avcodec_free_context(&decoder->codec_ctx);
+        return false;
+    }
+
     return true;
 }
 
-void
+static void
 decoder_close(struct decoder *decoder) {
+    decoder_close_sinks(decoder);
+    av_frame_free(&decoder->frame);
     avcodec_close(decoder->codec_ctx);
     avcodec_free_context(&decoder->codec_ctx);
 }
 
-bool
+static bool
+push_frame_to_sinks(struct decoder *decoder, const AVFrame *frame) {
+    for (unsigned i = 0; i < decoder->sink_count; ++i) {
+        struct sc_frame_sink *sink = decoder->sinks[i];
+        if (!sink->ops->push(sink, frame)) {
+            LOGE("Could not send frame to sink %d", i);
+            return false;
+        }
+    }
+
+    return true;
+}
+
+static bool
 decoder_push(struct decoder *decoder, const AVPacket *packet) {
-// the new decoding/encoding API has been introduced by:
+    bool is_config = packet->pts == AV_NOPTS_VALUE;
-// <http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=7fc329e2dd6226dfecaa4a1d7adf353bf2773726>
+    if (is_config) {
-#ifdef SCRCPY_LAVF_HAS_NEW_ENCODING_DECODING_API
+        // nothing to do
-    int ret;
+        return true;
-    if ((ret = avcodec_send_packet(decoder->codec_ctx, packet)) < 0) {
+    }
+
+    int ret = avcodec_send_packet(decoder->codec_ctx, packet);
+    if (ret < 0 && ret != AVERROR(EAGAIN)) {
         LOGE("Could not send video packet: %d", ret);
         return false;
     }
-    ret = avcodec_receive_frame(decoder->codec_ctx,
+    ret = avcodec_receive_frame(decoder->codec_ctx, decoder->frame);
-                                decoder->video_buffer->decoding_frame);
     if (!ret) {
         // a frame was received
-        push_frame(decoder);
+        bool ok = push_frame_to_sinks(decoder, decoder->frame);
+        // A frame lost should not make the whole pipeline fail. The error, if
+        // any, is already logged.
+        (void) ok;
+
+        av_frame_unref(decoder->frame);
     } else if (ret != AVERROR(EAGAIN)) {
         LOGE("Could not receive video frame: %d", ret);
         return false;
     }
-#else
-    int got_picture;
-    int len = avcodec_decode_video2(decoder->codec_ctx,
-                                    decoder->video_buffer->decoding_frame,
-                                    &got_picture,
-                                    packet);
-    if (len < 0) {
-        LOGE("Could not decode video packet: %d", len);
-        return false;
-    }
-    if (got_picture) {
-        push_frame(decoder);
-    }
-#endif
     return true;
 }
 
-void
+static bool
-decoder_interrupt(struct decoder *decoder) {
+decoder_packet_sink_open(struct sc_packet_sink *sink, const AVCodec *codec) {
-    video_buffer_interrupt(decoder->video_buffer);
+    struct decoder *decoder = DOWNCAST(sink);
+    return decoder_open(decoder, codec);
+}
+
+static void
+decoder_packet_sink_close(struct sc_packet_sink *sink) {
+    struct decoder *decoder = DOWNCAST(sink);
+    decoder_close(decoder);
+}
+
+static bool
+decoder_packet_sink_push(struct sc_packet_sink *sink, const AVPacket *packet) {
+    struct decoder *decoder = DOWNCAST(sink);
+    return decoder_push(decoder, packet);
+}
+
+void
+decoder_init(struct decoder *decoder) {
+    decoder->sink_count = 0;
+
+    static const struct sc_packet_sink_ops ops = {
+        .open = decoder_packet_sink_open,
+        .close = decoder_packet_sink_close,
+        .push = decoder_packet_sink_push,
+    };
+
+    decoder->packet_sink.ops = &ops;
+}
+
+void
+decoder_add_sink(struct decoder *decoder, struct sc_frame_sink *sink) {
+    assert(decoder->sink_count < DECODER_MAX_SINKS);
+    assert(sink);
+    assert(sink->ops);
+    decoder->sinks[decoder->sink_count++] = sink;
 }

app/src/decoder.h

@@ -1,29 +1,29 @@
 #ifndef DECODER_H
 #define DECODER_H
 
+#include "common.h"
+
+#include "trait/packet_sink.h"
+
 #include <stdbool.h>
 #include <libavformat/avformat.h>
 
-struct video_buffer;
+#define DECODER_MAX_SINKS 2
 
 struct decoder {
-    struct video_buffer *video_buffer;
+    struct sc_packet_sink packet_sink; // packet sink trait
+
+    struct sc_frame_sink *sinks[DECODER_MAX_SINKS];
+    unsigned sink_count;
+
     AVCodecContext *codec_ctx;
+    AVFrame *frame;
 };
 
 void
-decoder_init(struct decoder *decoder, struct video_buffer *vb);
+decoder_init(struct decoder *decoder);
-
-bool
-decoder_open(struct decoder *decoder, const AVCodec *codec);
 
 void
-decoder_close(struct decoder *decoder);
+decoder_add_sink(struct decoder *decoder, struct sc_frame_sink *sink);
-
-bool
-decoder_push(struct decoder *decoder, const AVPacket *packet);
-
-void
-decoder_interrupt(struct decoder *decoder);
 
 #endif

app/src/device.c

@@ -1,22 +0,0 @@
-#include "device.h"
-#include "log.h"
-
-bool
-device_read_info(socket_t device_socket, char *device_name, struct size *size) {
-    unsigned char buf[DEVICE_NAME_FIELD_LENGTH + 4];
-    int r = net_recv_all(device_socket, buf, sizeof(buf));
-    if (r < DEVICE_NAME_FIELD_LENGTH + 4) {
-        LOGE("Could not retrieve device information");
-        return false;
-    }
-    // in case the client sends garbage
-    buf[DEVICE_NAME_FIELD_LENGTH - 1] = '\0';
-    // strcpy is safe here, since name contains at least
-    // DEVICE_NAME_FIELD_LENGTH bytes and strlen(buf) < DEVICE_NAME_FIELD_LENGTH
-    strcpy(device_name, (char *) buf);
-    size->width = (buf[DEVICE_NAME_FIELD_LENGTH] << 8)
-            | buf[DEVICE_NAME_FIELD_LENGTH + 1];
-    size->height = (buf[DEVICE_NAME_FIELD_LENGTH + 2] << 8)
-            | buf[DEVICE_NAME_FIELD_LENGTH + 3];
-    return true;
-}

app/src/device.h

@@ -1,15 +0,0 @@
-#ifndef DEVICE_H
-#define DEVICE_H
-
-#include <stdbool.h>
-
-#include "common.h"
-#include "net.h"
-
-#define DEVICE_NAME_FIELD_LENGTH 64
-
-// name must be at least DEVICE_NAME_FIELD_LENGTH bytes
-bool
-device_read_info(socket_t device_socket, char *device_name, struct size *size);
-
-#endif

app/src/device_msg.c

@@ -1,15 +1,15 @@
 #include "device_msg.h"
 
+#include <stdlib.h>
 #include <string.h>
-#include <SDL2/SDL_assert.h>
 
-#include "buffer_util.h"
+#include "util/buffer_util.h"
-#include "log.h"
+#include "util/log.h"
 
 ssize_t
 device_msg_deserialize(const unsigned char *buf, size_t len,
                        struct device_msg *msg) {
-    if (len < 3) {
+    if (len < 5) {
         // at least type + empty string length
         return 0; // not available
     }
@@ -17,22 +17,22 @@ device_msg_deserialize(const unsigned char *buf, size_t len,
     msg->type = buf[0];
     switch (msg->type) {
         case DEVICE_MSG_TYPE_CLIPBOARD: {
-            uint16_t clipboard_len = buffer_read16be(&buf[1]);
+            size_t clipboard_len = buffer_read32be(&buf[1]);
-            if (clipboard_len > len - 3) {
+            if (clipboard_len > len - 5) {
                 return 0; // not available
             }
-            char *text = SDL_malloc(clipboard_len + 1);
+            char *text = malloc(clipboard_len + 1);
             if (!text) {
                 LOGW("Could not allocate text for clipboard");
                 return -1;
             }
             if (clipboard_len) {
-                memcpy(text, &buf[3], clipboard_len);
+                memcpy(text, &buf[5], clipboard_len);
             }
             text[clipboard_len] = '\0';
 
             msg->clipboard.text = text;
-            return 3 + clipboard_len;
+            return 5 + clipboard_len;
         }
         default:
             LOGW("Unknown device message type: %d", (int) msg->type);
@@ -43,6 +43,6 @@ device_msg_deserialize(const unsigned char *buf, size_t len,
 void
 device_msg_destroy(struct device_msg *msg) {
     if (msg->type == DEVICE_MSG_TYPE_CLIPBOARD) {
-        SDL_free(msg->clipboard.text);
+        free(msg->clipboard.text);
     }
 }

app/src/device_msg.h

@@ -1,12 +1,15 @@
 #ifndef DEVICEMSG_H
 #define DEVICEMSG_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <unistd.h>
 
-#define DEVICE_MSG_TEXT_MAX_LENGTH 4093
+#define DEVICE_MSG_MAX_SIZE (1 << 18) // 256k
-#define DEVICE_MSG_SERIALIZED_MAX_SIZE (3 + DEVICE_MSG_TEXT_MAX_LENGTH)
+// type: 1 byte; length: 4 bytes
+#define DEVICE_MSG_TEXT_MAX_LENGTH (DEVICE_MSG_MAX_SIZE - 5)
 
 enum device_msg_type {
     DEVICE_MSG_TYPE_CLIPBOARD,
@@ -16,7 +19,7 @@ struct device_msg {
     enum device_msg_type type;
     union {
         struct {
-            char *text; // owned, to be freed by SDL_free()
+            char *text; // owned, to be freed by free()
         } clipboard;
     };
 };

app/src/events.h

@@ -1,3 +1,2 @@
-#define EVENT_NEW_SESSION SDL_USEREVENT
+#define EVENT_NEW_FRAME       SDL_USEREVENT
-#define EVENT_NEW_FRAME (SDL_USEREVENT + 1)
+#define EVENT_STREAM_STOPPED (SDL_USEREVENT + 1)
-#define EVENT_STREAM_STOPPED (SDL_USEREVENT + 2)

app/src/file_handler.c

@@ -1,18 +1,16 @@
 #include "file_handler.h"
 
+#include <assert.h>
 #include <string.h>
-#include <SDL2/SDL_assert.h>
 
-#include "config.h"
+#include "adb.h"
-#include "command.h"
+#include "util/log.h"
-#include "lock_util.h"
-#include "log.h"
 
-#define DEFAULT_PUSH_TARGET "/sdcard/"
+#define DEFAULT_PUSH_TARGET "/sdcard/Download/"
 
 static void
 file_handler_request_destroy(struct file_handler_request *req) {
-    SDL_free(req->file);
+    free(req->file);
 }
 
 bool
@@ -21,21 +19,23 @@ file_handler_init(struct file_handler *file_handler, const char *serial,
 
     cbuf_init(&file_handler->queue);
 
-    if (!(file_handler->mutex = SDL_CreateMutex())) {
+    bool ok = sc_mutex_init(&file_handler->mutex);
+    if (!ok) {
         return false;
     }
 
-    if (!(file_handler->event_cond = SDL_CreateCond())) {
+    ok = sc_cond_init(&file_handler->event_cond);
-        SDL_DestroyMutex(file_handler->mutex);
+    if (!ok) {
+        sc_mutex_destroy(&file_handler->mutex);
         return false;
     }
 
     if (serial) {
-        file_handler->serial = SDL_strdup(serial);
+        file_handler->serial = strdup(serial);
         if (!file_handler->serial) {
             LOGW("Could not strdup serial");
-            SDL_DestroyCond(file_handler->event_cond);
+            sc_cond_destroy(&file_handler->event_cond);
-            SDL_DestroyMutex(file_handler->mutex);
+            sc_mutex_destroy(&file_handler->mutex);
             return false;
         }
     } else {
@@ -46,7 +46,7 @@ file_handler_init(struct file_handler *file_handler, const char *serial,
     file_handler->initialized = false;
 
     file_handler->stopped = false;
-    file_handler->current_process = PROCESS_NONE;
+    file_handler->current_process = SC_PROCESS_NONE;
 
     file_handler->push_target = push_target ? push_target : DEFAULT_PUSH_TARGET;
 
@@ -55,9 +55,9 @@ file_handler_init(struct file_handler *file_handler, const char *serial,
 
 void
 file_handler_destroy(struct file_handler *file_handler) {
-    SDL_DestroyCond(file_handler->event_cond);
+    sc_cond_destroy(&file_handler->event_cond);
-    SDL_DestroyMutex(file_handler->mutex);
+    sc_mutex_destroy(&file_handler->mutex);
-    SDL_free(file_handler->serial);
+    free(file_handler->serial);
 
     struct file_handler_request req;
     while (cbuf_take(&file_handler->queue, &req)) {
@@ -65,12 +65,12 @@ file_handler_destroy(struct file_handler *file_handler) {
     }
 }
 
-static process_t
+static sc_pid
 install_apk(const char *serial, const char *file) {
     return adb_install(serial, file);
 }
 
-static process_t
+static sc_pid
 push_file(const char *serial, const char *file, const char *push_target) {
     return adb_push(serial, file, push_target);
 }
@@ -93,13 +93,13 @@ file_handler_request(struct file_handler *file_handler,
         .file = file,
     };
 
-    mutex_lock(file_handler->mutex);
+    sc_mutex_lock(&file_handler->mutex);
     bool was_empty = cbuf_is_empty(&file_handler->queue);
     bool res = cbuf_push(&file_handler->queue, req);
     if (was_empty) {
-        cond_signal(file_handler->event_cond);
+        sc_cond_signal(&file_handler->event_cond);
     }
-    mutex_unlock(file_handler->mutex);
+    sc_mutex_unlock(&file_handler->mutex);
     return res;
 }
 
@@ -108,40 +108,41 @@ run_file_handler(void *data) {
     struct file_handler *file_handler = data;
 
     for (;;) {
-        mutex_lock(file_handler->mutex);
+        sc_mutex_lock(&file_handler->mutex);
-        file_handler->current_process = PROCESS_NONE;
+        file_handler->current_process = SC_PROCESS_NONE;
         while (!file_handler->stopped && cbuf_is_empty(&file_handler->queue)) {
-            cond_wait(file_handler->event_cond, file_handler->mutex);
+            sc_cond_wait(&file_handler->event_cond, &file_handler->mutex);
         }
         if (file_handler->stopped) {
             // stop immediately, do not process further events
-            mutex_unlock(file_handler->mutex);
+            sc_mutex_unlock(&file_handler->mutex);
             break;
         }
         struct file_handler_request req;
         bool non_empty = cbuf_take(&file_handler->queue, &req);
-        SDL_assert(non_empty);
+        assert(non_empty);
+        (void) non_empty;
 
-        process_t process;
+        sc_pid pid;
         if (req.action == ACTION_INSTALL_APK) {
             LOGI("Installing %s...", req.file);
-            process = install_apk(file_handler->serial, req.file);
+            pid = install_apk(file_handler->serial, req.file);
         } else {
             LOGI("Pushing %s...", req.file);
-            process = push_file(file_handler->serial, req.file,
+            pid = push_file(file_handler->serial, req.file,
-                                file_handler->push_target);
+                            file_handler->push_target);
         }
-        file_handler->current_process = process;
+        file_handler->current_process = pid;
-        mutex_unlock(file_handler->mutex);
+        sc_mutex_unlock(&file_handler->mutex);
 
         if (req.action == ACTION_INSTALL_APK) {
-            if (process_check_success(process, "adb install")) {
+            if (sc_process_check_success(pid, "adb install", false)) {
                 LOGI("%s successfully installed", req.file);
             } else {
                 LOGE("Failed to install %s", req.file);
             }
         } else {
-            if (process_check_success(process, "adb push")) {
+            if (sc_process_check_success(pid, "adb push", false)) {
                 LOGI("%s successfully pushed to %s", req.file,
                                                      file_handler->push_target);
             } else {
@@ -150,6 +151,14 @@ run_file_handler(void *data) {
             }
         }
 
+        sc_mutex_lock(&file_handler->mutex);
+        // Close the process (it is necessarily already terminated)
+        // Execute this call with mutex locked to avoid race conditions with
+        // file_handler_stop()
+        sc_process_close(file_handler->current_process);
+        file_handler->current_process = SC_PROCESS_NONE;
+        sc_mutex_unlock(&file_handler->mutex);
+
         file_handler_request_destroy(&req);
     }
     return 0;
@@ -159,9 +168,9 @@ bool
 file_handler_start(struct file_handler *file_handler) {
     LOGD("Starting file_handler thread");
 
-    file_handler->thread = SDL_CreateThread(run_file_handler, "file_handler",
+    bool ok = sc_thread_create(&file_handler->thread, run_file_handler,
-                                            file_handler);
+                               "file_handler", file_handler);
-    if (!file_handler->thread) {
+    if (!ok) {
         LOGC("Could not start file_handler thread");
         return false;
     }
@@ -171,20 +180,18 @@ file_handler_start(struct file_handler *file_handler) {
 
 void
 file_handler_stop(struct file_handler *file_handler) {
-    mutex_lock(file_handler->mutex);
+    sc_mutex_lock(&file_handler->mutex);
     file_handler->stopped = true;
-    cond_signal(file_handler->event_cond);
+    sc_cond_signal(&file_handler->event_cond);
-    if (file_handler->current_process != PROCESS_NONE) {
+    if (file_handler->current_process != SC_PROCESS_NONE) {
-        if (!cmd_terminate(file_handler->current_process)) {
+        if (!sc_process_terminate(file_handler->current_process)) {
-            LOGW("Could not terminate install process");
+            LOGW("Could not terminate push/install process");
         }
-        cmd_simple_wait(file_handler->current_process, NULL);
-        file_handler->current_process = PROCESS_NONE;
     }
-    mutex_unlock(file_handler->mutex);
+    sc_mutex_unlock(&file_handler->mutex);
 }
 
 void
 file_handler_join(struct file_handler *file_handler) {
-    SDL_WaitThread(file_handler->thread, NULL);
+    sc_thread_join(&file_handler->thread, NULL);
 }

app/src/file_handler.h

@@ -1,12 +1,13 @@
 #ifndef FILE_HANDLER_H
 #define FILE_HANDLER_H
 
-#include <stdbool.h>
+#include "common.h"
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
 
-#include "cbuf.h"
+#include <stdbool.h>
-#include "command.h"
+
+#include "adb.h"
+#include "util/cbuf.h"
+#include "util/thread.h"
 
 typedef enum {
     ACTION_INSTALL_APK,
@@ -23,12 +24,12 @@ struct file_handler_request_queue CBUF(struct file_handler_request, 16);
 struct file_handler {
     char *serial;
     const char *push_target;
-    SDL_Thread *thread;
+    sc_thread thread;
-    SDL_mutex *mutex;
+    sc_mutex mutex;
-    SDL_cond *event_cond;
+    sc_cond event_cond;
     bool stopped;
     bool initialized;
-    process_t current_process;
+    sc_pid current_process;
     struct file_handler_request_queue queue;
 };
 
@@ -48,7 +49,7 @@ file_handler_stop(struct file_handler *file_handler);
 void
 file_handler_join(struct file_handler *file_handler);
 
-// take ownership of file, and will SDL_free() it
+// take ownership of file, and will free() it
 bool
 file_handler_request(struct file_handler *file_handler,
                      file_handler_action_t action,

app/src/fps_counter.c

@@ -1,28 +1,26 @@
 #include "fps_counter.h"
 
-#include <SDL2/SDL_assert.h>
+#include <assert.h>
-#include <SDL2/SDL_timer.h>
 
-#include "lock_util.h"
+#include "util/log.h"
-#include "log.h"
 
-#define FPS_COUNTER_INTERVAL_MS 1000
+#define FPS_COUNTER_INTERVAL SC_TICK_FROM_SEC(1)
 
 bool
 fps_counter_init(struct fps_counter *counter) {
-    counter->mutex = SDL_CreateMutex();
+    bool ok = sc_mutex_init(&counter->mutex);
-    if (!counter->mutex) {
+    if (!ok) {
         return false;
     }
 
-    counter->state_cond = SDL_CreateCond();
+    ok = sc_cond_init(&counter->state_cond);
-    if (!counter->state_cond) {
+    if (!ok) {
-        SDL_DestroyMutex(counter->mutex);
+        sc_mutex_destroy(&counter->mutex);
         return false;
     }
 
-    counter->thread = NULL;
+    counter->thread_started = false;
-    SDL_AtomicSet(&counter->started, 0);
+    atomic_init(&counter->started, 0);
     // no need to initialize the other fields, they are unused until started
 
     return true;
@@ -30,15 +28,25 @@ fps_counter_init(struct fps_counter *counter) {
 
 void
 fps_counter_destroy(struct fps_counter *counter) {
-    SDL_DestroyCond(counter->state_cond);
+    sc_cond_destroy(&counter->state_cond);
-    SDL_DestroyMutex(counter->mutex);
+    sc_mutex_destroy(&counter->mutex);
+}
+
+static inline bool
+is_started(struct fps_counter *counter) {
+    return atomic_load_explicit(&counter->started, memory_order_acquire);
+}
+
+static inline void
+set_started(struct fps_counter *counter, bool started) {
+    atomic_store_explicit(&counter->started, started, memory_order_release);
 }
 
 // must be called with mutex locked
 static void
 display_fps(struct fps_counter *counter) {
     unsigned rendered_per_second =
-        counter->nr_rendered * 1000 / FPS_COUNTER_INTERVAL_MS;
+        counter->nr_rendered * SC_TICK_FREQ / FPS_COUNTER_INTERVAL;
     if (counter->nr_skipped) {
         LOGI("%u fps (+%u frames skipped)", rendered_per_second,
                                             counter->nr_skipped);
@@ -59,53 +67,54 @@ check_interval_expired(struct fps_counter *counter, uint32_t now) {
     counter->nr_skipped = 0;
     // add a multiple of the interval
     uint32_t elapsed_slices =
-        (now - counter->next_timestamp) / FPS_COUNTER_INTERVAL_MS + 1;
+        (now - counter->next_timestamp) / FPS_COUNTER_INTERVAL + 1;
-    counter->next_timestamp += FPS_COUNTER_INTERVAL_MS * elapsed_slices;
+    counter->next_timestamp += FPS_COUNTER_INTERVAL * elapsed_slices;
 }
 
 static int
 run_fps_counter(void *data) {
     struct fps_counter *counter = data;
 
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
     while (!counter->interrupted) {
-        while (!counter->interrupted && !SDL_AtomicGet(&counter->started)) {
+        while (!counter->interrupted && !is_started(counter)) {
-            cond_wait(counter->state_cond, counter->mutex);
+            sc_cond_wait(&counter->state_cond, &counter->mutex);
         }
-        while (!counter->interrupted && SDL_AtomicGet(&counter->started)) {
+        while (!counter->interrupted && is_started(counter)) {
-            uint32_t now = SDL_GetTicks();
+            sc_tick now = sc_tick_now();
             check_interval_expired(counter, now);
 
-            SDL_assert(counter->next_timestamp > now);
-            uint32_t remaining = counter->next_timestamp - now;
-
             // ignore the reason (timeout or signaled), we just loop anyway
-            cond_wait_timeout(counter->state_cond, counter->mutex, remaining);
+            sc_cond_timedwait(&counter->state_cond, &counter->mutex,
+                              counter->next_timestamp);
         }
     }
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
     return 0;
 }
 
 bool
 fps_counter_start(struct fps_counter *counter) {
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
-    counter->next_timestamp = SDL_GetTicks() + FPS_COUNTER_INTERVAL_MS;
+    counter->next_timestamp = sc_tick_now() + FPS_COUNTER_INTERVAL;
     counter->nr_rendered = 0;
     counter->nr_skipped = 0;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
 
-    SDL_AtomicSet(&counter->started, 1);
+    set_started(counter, true);
-    cond_signal(counter->state_cond);
+    sc_cond_signal(&counter->state_cond);
 
-    // counter->thread is always accessed from the same thread, no need to lock
+    // counter->thread_started and counter->thread are always accessed from the
-    if (!counter->thread) {
+    // same thread, no need to lock
-        counter->thread =
+    if (!counter->thread_started) {
-            SDL_CreateThread(run_fps_counter, "fps counter", counter);
+        bool ok = sc_thread_create(&counter->thread, run_fps_counter,
-        if (!counter->thread) {
+                                   "fps counter", counter);
+        if (!ok) {
             LOGE("Could not start FPS counter thread");
             return false;
         }
+
+        counter->thread_started = true;
     }
 
     return true;
@@ -113,57 +122,61 @@ fps_counter_start(struct fps_counter *counter) {
 
 void
 fps_counter_stop(struct fps_counter *counter) {
-    SDL_AtomicSet(&counter->started, 0);
+    set_started(counter, false);
-    cond_signal(counter->state_cond);
+    sc_cond_signal(&counter->state_cond);
 }
 
 bool
 fps_counter_is_started(struct fps_counter *counter) {
-    return SDL_AtomicGet(&counter->started);
+    return is_started(counter);
 }
 
 void
 fps_counter_interrupt(struct fps_counter *counter) {
-    if (!counter->thread) {
+    if (!counter->thread_started) {
         return;
     }
 
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
     counter->interrupted = true;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
     // wake up blocking wait
-    cond_signal(counter->state_cond);
+    sc_cond_signal(&counter->state_cond);
 }
 
 void
 fps_counter_join(struct fps_counter *counter) {
-    if (counter->thread) {
+    if (counter->thread_started) {
-        SDL_WaitThread(counter->thread, NULL);
+        // interrupted must be set by the thread calling join(), so no need to
+        // lock for the assertion
+        assert(counter->interrupted);
+
+        sc_thread_join(&counter->thread, NULL);
     }
 }
 
 void
 fps_counter_add_rendered_frame(struct fps_counter *counter) {
-    if (!SDL_AtomicGet(&counter->started)) {
+    if (!is_started(counter)) {
         return;
     }
 
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
-    uint32_t now = SDL_GetTicks();
+    sc_tick now = sc_tick_now();
     check_interval_expired(counter, now);
     ++counter->nr_rendered;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
 }
 
 void
 fps_counter_add_skipped_frame(struct fps_counter *counter) {
-    if (!SDL_AtomicGet(&counter->started)) {
+    if (!is_started(counter)) {
         return;
     }
 
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
-    uint32_t now = SDL_GetTicks();
+    sc_tick now = sc_tick_now();
     check_interval_expired(counter, now);
     ++counter->nr_skipped;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
 }

app/src/fps_counter.h

@@ -1,26 +1,30 @@
 #ifndef FPSCOUNTER_H
 #define FPSCOUNTER_H
 
+#include "common.h"
+
+#include <stdatomic.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL_atomic.h>
+
-#include <SDL2/SDL_mutex.h>
+#include "util/thread.h"
-#include <SDL2/SDL_thread.h>
 
 struct fps_counter {
-    SDL_Thread *thread;
+    sc_thread thread;
-    SDL_mutex *mutex;
+    sc_mutex mutex;
-    SDL_cond *state_cond;
+    sc_cond state_cond;
+
+    bool thread_started;
 
     // atomic so that we can check without locking the mutex
     // if the FPS counter is disabled, we don't want to lock unnecessarily
-    SDL_atomic_t started;
+    atomic_bool started;
 
     // the following fields are protected by the mutex
     bool interrupted;
     unsigned nr_rendered;
     unsigned nr_skipped;
-    uint32_t next_timestamp;
+    sc_tick next_timestamp;
 };
 
 bool

app/src/frame_buffer.c

@@ -0,0 +1,88 @@
+#include "frame_buffer.h"
+
+#include <assert.h>
+#include <libavutil/avutil.h>
+#include <libavformat/avformat.h>
+
+#include "util/log.h"
+
+bool
+sc_frame_buffer_init(struct sc_frame_buffer *fb) {
+    fb->pending_frame = av_frame_alloc();
+    if (!fb->pending_frame) {
+        return false;
+    }
+
+    fb->tmp_frame = av_frame_alloc();
+    if (!fb->tmp_frame) {
+        av_frame_free(&fb->pending_frame);
+        return false;
+    }
+
+    bool ok = sc_mutex_init(&fb->mutex);
+    if (!ok) {
+        av_frame_free(&fb->pending_frame);
+        av_frame_free(&fb->tmp_frame);
+        return false;
+    }
+
+    // there is initially no frame, so consider it has already been consumed
+    fb->pending_frame_consumed = true;
+
+    return true;
+}
+
+void
+sc_frame_buffer_destroy(struct sc_frame_buffer *fb) {
+    sc_mutex_destroy(&fb->mutex);
+    av_frame_free(&fb->pending_frame);
+    av_frame_free(&fb->tmp_frame);
+}
+
+static inline void
+swap_frames(AVFrame **lhs, AVFrame **rhs) {
+    AVFrame *tmp = *lhs;
+    *lhs = *rhs;
+    *rhs = tmp;
+}
+
+bool
+sc_frame_buffer_push(struct sc_frame_buffer *fb, const AVFrame *frame,
+                  bool *previous_frame_skipped) {
+    sc_mutex_lock(&fb->mutex);
+
+    // Use a temporary frame to preserve pending_frame in case of error.
+    // tmp_frame is an empty frame, no need to call av_frame_unref() beforehand.
+    int r = av_frame_ref(fb->tmp_frame, frame);
+    if (r) {
+        LOGE("Could not ref frame: %d", r);
+        return false;
+    }
+
+    // Now that av_frame_ref() succeeded, we can replace the previous
+    // pending_frame
+    swap_frames(&fb->pending_frame, &fb->tmp_frame);
+    av_frame_unref(fb->tmp_frame);
+
+    if (previous_frame_skipped) {
+        *previous_frame_skipped = !fb->pending_frame_consumed;
+    }
+    fb->pending_frame_consumed = false;
+
+    sc_mutex_unlock(&fb->mutex);
+
+    return true;
+}
+
+void
+sc_frame_buffer_consume(struct sc_frame_buffer *fb, AVFrame *dst) {
+    sc_mutex_lock(&fb->mutex);
+    assert(!fb->pending_frame_consumed);
+    fb->pending_frame_consumed = true;
+
+    av_frame_move_ref(dst, fb->pending_frame);
+    // av_frame_move_ref() resets its source frame, so no need to call
+    // av_frame_unref()
+
+    sc_mutex_unlock(&fb->mutex);
+}

app/src/frame_buffer.h

@@ -0,0 +1,44 @@
+#ifndef SC_FRAME_BUFFER_H
+#define SC_FRAME_BUFFER_H
+
+#include "common.h"
+
+#include <stdbool.h>
+
+#include "util/thread.h"
+
+// forward declarations
+typedef struct AVFrame AVFrame;
+
+/**
+ * A frame buffer holds 1 pending frame, which is the last frame received from
+ * the producer (typically, the decoder).
+ *
+ * If a pending frame has not been consumed when the producer pushes a new
+ * frame, then it is lost. The intent is to always provide access to the very
+ * last frame to minimize latency.
+ */
+
+struct sc_frame_buffer {
+    AVFrame *pending_frame;
+    AVFrame *tmp_frame; // To preserve the pending frame on error
+
+    sc_mutex mutex;
+
+    bool pending_frame_consumed;
+};
+
+bool
+sc_frame_buffer_init(struct sc_frame_buffer *fb);
+
+void
+sc_frame_buffer_destroy(struct sc_frame_buffer *fb);
+
+bool
+sc_frame_buffer_push(struct sc_frame_buffer *fb, const AVFrame *frame,
+                     bool *skipped);
+
+void
+sc_frame_buffer_consume(struct sc_frame_buffer *fb, AVFrame *dst);
+
+#endif

app/src/hid_keyboard.c

@@ -0,0 +1,363 @@
+#include "hid_keyboard.h"
+
+#include <assert.h>
+#include <SDL2/SDL_events.h>
+
+#include "util/log.h"
+
+/** Downcast key processor to hid_keyboard */
+#define DOWNCAST(KP) container_of(KP, struct sc_hid_keyboard, key_processor)
+
+#define HID_KEYBOARD_ACCESSORY_ID 1
+
+#define HID_MODIFIER_NONE 0x00
+#define HID_MODIFIER_LEFT_CONTROL (1 << 0)
+#define HID_MODIFIER_LEFT_SHIFT (1 << 1)
+#define HID_MODIFIER_LEFT_ALT (1 << 2)
+#define HID_MODIFIER_LEFT_GUI (1 << 3)
+#define HID_MODIFIER_RIGHT_CONTROL (1 << 4)
+#define HID_MODIFIER_RIGHT_SHIFT (1 << 5)
+#define HID_MODIFIER_RIGHT_ALT (1 << 6)
+#define HID_MODIFIER_RIGHT_GUI (1 << 7)
+
+#define HID_KEYBOARD_INDEX_MODIFIER 0
+#define HID_KEYBOARD_INDEX_KEYS 2
+
+// USB HID protocol says 6 keys in an event is the requirement for BIOS
+// keyboard support, though OS could support more keys via modifying the report
+// desc. 6 should be enough for scrcpy.
+#define HID_KEYBOARD_MAX_KEYS 6
+#define HID_KEYBOARD_EVENT_SIZE (2 + HID_KEYBOARD_MAX_KEYS)
+
+#define HID_RESERVED 0x00
+#define HID_ERROR_ROLL_OVER 0x01
+
+/**
+ * For HID over AOAv2, only report descriptor is needed.
+ *
+ * The specification is available here:
+ * <https://www.usb.org/sites/default/files/hid1_11.pdf>
+ *
+ * In particular, read:
+ *  - 6.2.2 Report Descriptor
+ *  - Appendix B.1 Protocol 1 (Keyboard)
+ *  - Appendix C: Keyboard Implementation
+ *
+ * Normally a basic HID keyboard uses 8 bytes:
+ *     Modifier Reserved Key Key Key Key Key Key
+ *
+ * You can dump your device's report descriptor with:
+ *
+ *     sudo usbhid-dump -m vid:pid -e descriptor
+ *
+ * (change vid:pid' to your device's vendor ID and product ID).
+ */
+static const unsigned char keyboard_report_desc[]  = {
+    // Usage Page (Generic Desktop)
+    0x05, 0x01,
+    // Usage (Keyboard)
+    0x09, 0x06,
+
+    // Collection (Application)
+    0xA1, 0x01,
+
+    // Usage Page (Key Codes)
+    0x05, 0x07,
+    // Usage Minimum (224)
+    0x19, 0xE0,
+     // Usage Maximum (231)
+    0x29, 0xE7,
+    // Logical Minimum (0)
+    0x15, 0x00,
+    // Logical Maximum (1)
+    0x25, 0x01,
+    // Report Size (1)
+    0x75, 0x01,
+    // Report Count (8)
+    0x95, 0x08,
+    // Input (Data, Variable, Absolute): Modifier byte
+    0x81, 0x02,
+
+    // Report Size (8)
+    0x75, 0x08,
+    // Report Count (1)
+    0x95, 0x01,
+    // Input (Constant): Reserved byte
+    0x81, 0x01,
+
+    // Usage Page (LEDs)
+    0x05, 0x08,
+    // Usage Minimum (1)
+    0x19, 0x01,
+    // Usage Maximum (5)
+    0x29, 0x05,
+    // Report Size (1)
+    0x75, 0x01,
+    // Report Count (5)
+    0x95, 0x05,
+    // Output (Data, Variable, Absolute): LED report
+    0x91, 0x02,
+
+    // Report Size (3)
+    0x75, 0x03,
+    // Report Count (1)
+    0x95, 0x01,
+    // Output (Constant): LED report padding
+    0x91, 0x01,
+
+    // Usage Page (Key Codes)
+    0x05, 0x07,
+    // Usage Minimum (0)
+    0x19, 0x00,
+    // Usage Maximum (101)
+    0x29, SC_HID_KEYBOARD_KEYS - 1,
+    // Logical Minimum (0)
+    0x15, 0x00,
+    // Logical Maximum(101)
+    0x25, SC_HID_KEYBOARD_KEYS - 1,
+    // Report Size (8)
+    0x75, 0x08,
+    // Report Count (6)
+    0x95, HID_KEYBOARD_MAX_KEYS,
+    // Input (Data, Array): Keys
+    0x81, 0x00,
+
+    // End Collection
+    0xC0
+};
+
+static unsigned char
+sdl_keymod_to_hid_modifiers(SDL_Keymod mod) {
+    unsigned char modifiers = HID_MODIFIER_NONE;
+    if (mod & KMOD_LCTRL) {
+        modifiers |= HID_MODIFIER_LEFT_CONTROL;
+    }
+    if (mod & KMOD_LSHIFT) {
+        modifiers |= HID_MODIFIER_LEFT_SHIFT;
+    }
+    if (mod & KMOD_LALT) {
+        modifiers |= HID_MODIFIER_LEFT_ALT;
+    }
+    if (mod & KMOD_LGUI) {
+        modifiers |= HID_MODIFIER_LEFT_GUI;
+    }
+    if (mod & KMOD_RCTRL) {
+        modifiers |= HID_MODIFIER_RIGHT_CONTROL;
+    }
+    if (mod & KMOD_RSHIFT) {
+        modifiers |= HID_MODIFIER_RIGHT_SHIFT;
+    }
+    if (mod & KMOD_RALT) {
+        modifiers |= HID_MODIFIER_RIGHT_ALT;
+    }
+    if (mod & KMOD_RGUI) {
+        modifiers |= HID_MODIFIER_RIGHT_GUI;
+    }
+    return modifiers;
+}
+
+static bool
+sc_hid_keyboard_event_init(struct sc_hid_event *hid_event) {
+    unsigned char *buffer = malloc(HID_KEYBOARD_EVENT_SIZE);
+    if (!buffer) {
+        return false;
+    }
+
+    buffer[HID_KEYBOARD_INDEX_MODIFIER] = HID_MODIFIER_NONE;
+    buffer[1] = HID_RESERVED;
+    memset(&buffer[HID_KEYBOARD_INDEX_KEYS], 0, HID_KEYBOARD_MAX_KEYS);
+
+    sc_hid_event_init(hid_event, HID_KEYBOARD_ACCESSORY_ID, buffer,
+                      HID_KEYBOARD_EVENT_SIZE);
+    return true;
+}
+
+static inline bool
+scancode_is_modifier(SDL_Scancode scancode) {
+    return scancode >= SDL_SCANCODE_LCTRL && scancode <= SDL_SCANCODE_RGUI;
+}
+
+static bool
+convert_hid_keyboard_event(struct sc_hid_keyboard *kb,
+                           struct sc_hid_event *hid_event,
+                           const SDL_KeyboardEvent *event) {
+    SDL_Scancode scancode = event->keysym.scancode;
+    assert(scancode >= 0);
+
+    // SDL also generates events when only modifiers are pressed, we cannot
+    // ignore them totally, for example press 'a' first then press 'Control',
+    // if we ignore 'Control' event, only 'a' is sent.
+    if (scancode >= SC_HID_KEYBOARD_KEYS && !scancode_is_modifier(scancode)) {
+        // Scancode to ignore
+        return false;
+    }
+
+    if (!sc_hid_keyboard_event_init(hid_event)) {
+        LOGW("Could not initialize HID keyboard event");
+        return false;
+    }
+
+    unsigned char modifiers = sdl_keymod_to_hid_modifiers(event->keysym.mod);
+
+    if (scancode < SC_HID_KEYBOARD_KEYS) {
+        // Pressed is true and released is false
+        kb->keys[scancode] = (event->type == SDL_KEYDOWN);
+        LOGV("keys[%02x] = %s", scancode,
+             kb->keys[scancode] ? "true" : "false");
+    }
+
+    hid_event->buffer[HID_KEYBOARD_INDEX_MODIFIER] = modifiers;
+
+    unsigned char *keys_buffer = &hid_event->buffer[HID_KEYBOARD_INDEX_KEYS];
+    // Re-calculate pressed keys every time
+    int keys_pressed_count = 0;
+    for (int i = 0; i < SC_HID_KEYBOARD_KEYS; ++i) {
+        if (kb->keys[i]) {
+            // USB HID protocol says that if keys exceeds report count, a
+            // phantom state should be reported
+            if (keys_pressed_count >= HID_KEYBOARD_MAX_KEYS) {
+                // Pantom state:
+                //  - Modifiers
+                //  - Reserved
+                //  - ErrorRollOver * HID_MAX_KEYS
+                memset(keys_buffer, HID_ERROR_ROLL_OVER, HID_KEYBOARD_MAX_KEYS);
+                goto end;
+            }
+
+            keys_buffer[keys_pressed_count] = i;
+            ++keys_pressed_count;
+        }
+    }
+
+end:
+    LOGV("hid keyboard: key %-4s scancode=%02x (%u) mod=%02x",
+         event->type == SDL_KEYDOWN ? "down" : "up", event->keysym.scancode,
+         event->keysym.scancode, modifiers);
+
+    return true;
+}
+
+
+static bool
+push_mod_lock_state(struct sc_hid_keyboard *kb, uint16_t sdl_mod) {
+    bool capslock = sdl_mod & KMOD_CAPS;
+    bool numlock = sdl_mod & KMOD_NUM;
+    if (!capslock && !numlock) {
+        // Nothing to do
+        return true;
+    }
+
+    struct sc_hid_event hid_event;
+    if (!sc_hid_keyboard_event_init(&hid_event)) {
+        LOGW("Could not initialize HID keyboard event");
+        return false;
+    }
+
+#define SC_SCANCODE_CAPSLOCK SDL_SCANCODE_CAPSLOCK
+#define SC_SCANCODE_NUMLOCK SDL_SCANCODE_NUMLOCKCLEAR
+    unsigned i = 0;
+    if (capslock) {
+        hid_event.buffer[HID_KEYBOARD_INDEX_KEYS + i] = SC_SCANCODE_CAPSLOCK;
+        ++i;
+    }
+    if (numlock) {
+        hid_event.buffer[HID_KEYBOARD_INDEX_KEYS + i] = SC_SCANCODE_NUMLOCK;
+        ++i;
+    }
+
+    if (!sc_aoa_push_hid_event(kb->aoa, &hid_event)) {
+        sc_hid_event_destroy(&hid_event);
+        LOGW("Could request HID event");
+        return false;
+    }
+
+    LOGD("HID keyboard state synchronized");
+
+    return true;
+}
+
+static void
+sc_key_processor_process_key(struct sc_key_processor *kp,
+                             const SDL_KeyboardEvent *event) {
+    if (event->repeat) {
+        // In USB HID protocol, key repeat is handled by the host (Android), so
+        // just ignore key repeat here.
+        return;
+    }
+
+    struct sc_hid_keyboard *kb = DOWNCAST(kp);
+
+    struct sc_hid_event hid_event;
+    // Not all keys are supported, just ignore unsupported keys
+    if (convert_hid_keyboard_event(kb, &hid_event, event)) {
+        if (!kb->mod_lock_synchronized) {
+            // Inject CAPSLOCK and/or NUMLOCK if necessary to synchronize
+            // keyboard state
+            if (push_mod_lock_state(kb, event->keysym.mod)) {
+                kb->mod_lock_synchronized = true;
+            }
+        }
+
+        SDL_Keycode keycode = event->keysym.sym;
+        bool down = event->type == SDL_KEYDOWN;
+        bool ctrl = event->keysym.mod & KMOD_CTRL;
+        bool shift = event->keysym.mod & KMOD_SHIFT;
+        if (ctrl && !shift && keycode == SDLK_v && down) {
+            // Ctrl+v is pressed, so clipboard synchronization has been
+            // requested. Wait a bit so that the clipboard is set before
+            // injecting Ctrl+v via HID, otherwise it would paste the old
+            // clipboard content.
+            hid_event.delay = SC_TICK_FROM_MS(2);
+        }
+
+        if (!sc_aoa_push_hid_event(kb->aoa, &hid_event)) {
+            sc_hid_event_destroy(&hid_event);
+            LOGW("Could request HID event");
+        }
+    }
+}
+
+static void
+sc_key_processor_process_text(struct sc_key_processor *kp,
+                              const SDL_TextInputEvent *event) {
+    (void) kp;
+    (void) event;
+
+    // Never forward text input via HID (all the keys are injected separately)
+}
+
+bool
+sc_hid_keyboard_init(struct sc_hid_keyboard *kb, struct sc_aoa *aoa) {
+    kb->aoa = aoa;
+
+    bool ok = sc_aoa_setup_hid(aoa, HID_KEYBOARD_ACCESSORY_ID,
+                               keyboard_report_desc,
+                               ARRAY_LEN(keyboard_report_desc));
+    if (!ok) {
+        LOGW("Register HID keyboard failed");
+        return false;
+    }
+
+    // Reset all states
+    memset(kb->keys, false, SC_HID_KEYBOARD_KEYS);
+
+    kb->mod_lock_synchronized = false;
+
+    static const struct sc_key_processor_ops ops = {
+        .process_key = sc_key_processor_process_key,
+        .process_text = sc_key_processor_process_text,
+    };
+
+    kb->key_processor.ops = &ops;
+
+    return true;
+}
+
+void
+sc_hid_keyboard_destroy(struct sc_hid_keyboard *kb) {
+    // Unregister HID keyboard so the soft keyboard shows again on Android
+    bool ok = sc_aoa_unregister_hid(kb->aoa, HID_KEYBOARD_ACCESSORY_ID);
+    if (!ok) {
+        LOGW("Could not unregister HID keyboard");
+    }
+}

app/src/hid_keyboard.h

@@ -0,0 +1,44 @@
+#ifndef SC_HID_KEYBOARD_H
+#define SC_HID_KEYBOARD_H
+
+#include "common.h"
+
+#include <stdbool.h>
+
+#include "aoa_hid.h"
+#include "trait/key_processor.h"
+
+// See "SDL2/SDL_scancode.h".
+// Maybe SDL_Keycode is used by most people, but SDL_Scancode is taken from USB
+// HID protocol.
+// 0x65 is Application, typically AT-101 Keyboard ends here.
+#define SC_HID_KEYBOARD_KEYS 0x66
+
+/**
+ * HID keyboard events are sequence-based, every time keyboard state changes
+ * it sends an array of currently pressed keys, the host is responsible for
+ * compare events and determine which key becomes pressed and which key becomes
+ * released. In order to convert SDL_KeyboardEvent to HID events, we first use
+ * an array of keys to save each keys' state. And when a SDL_KeyboardEvent was
+ * emitted, we updated our state, and then we use a loop to generate HID
+ * events. The sequence of array elements is unimportant and when too much keys
+ * pressed at the same time (more than report count), we should generate
+ * phantom state. Don't forget that modifiers should be updated too, even for
+ * phantom state.
+ */
+struct sc_hid_keyboard {
+    struct sc_key_processor key_processor; // key processor trait
+
+    struct sc_aoa *aoa;
+    bool keys[SC_HID_KEYBOARD_KEYS];
+
+    bool mod_lock_synchronized;
+};
+
+bool
+sc_hid_keyboard_init(struct sc_hid_keyboard *kb, struct sc_aoa *aoa);
+
+void
+sc_hid_keyboard_destroy(struct sc_hid_keyboard *kb);
+
+#endif

app/src/icon.c

@@ -0,0 +1,282 @@
+#include "icon.h"
+
+#include <assert.h>
+#include <stdbool.h>
+#include <libavformat/avformat.h>
+#include <libavutil/pixdesc.h>
+#include <libavutil/pixfmt.h>
+
+#include "config.h"
+#include "compat.h"
+#include "util/file.h"
+#include "util/log.h"
+#include "util/str_util.h"
+
+#define SCRCPY_PORTABLE_ICON_FILENAME "icon.png"
+#define SCRCPY_DEFAULT_ICON_PATH \
+    PREFIX "/share/icons/hicolor/256x256/apps/scrcpy.png"
+
+static char *
+get_icon_path(void) {
+#ifdef __WINDOWS__
+    const wchar_t *icon_path_env = _wgetenv(L"SCRCPY_ICON_PATH");
+#else
+    const char *icon_path_env = getenv("SCRCPY_ICON_PATH");
+#endif
+    if (icon_path_env) {
+        // if the envvar is set, use it
+#ifdef __WINDOWS__
+        char *icon_path = utf8_from_wide_char(icon_path_env);
+#else
+        char *icon_path = strdup(icon_path_env);
+#endif
+        if (!icon_path) {
+            LOGE("Could not allocate memory");
+            return NULL;
+        }
+        LOGD("Using SCRCPY_ICON_PATH: %s", icon_path);
+        return icon_path;
+    }
+
+#ifndef PORTABLE
+    LOGD("Using icon: " SCRCPY_DEFAULT_ICON_PATH);
+    char *icon_path = strdup(SCRCPY_DEFAULT_ICON_PATH);
+    if (!icon_path) {
+        LOGE("Could not allocate memory");
+        return NULL;
+    }
+#else
+    char *icon_path = sc_file_get_local_path(SCRCPY_PORTABLE_ICON_FILENAME);
+    if (!icon_path) {
+        LOGE("Could not get icon path");
+        return NULL;
+    }
+    LOGD("Using icon (portable): %s", icon_path);
+#endif
+
+    return icon_path;
+}
+
+static AVFrame *
+decode_image(const char *path) {
+    AVFrame *result = NULL;
+
+    AVFormatContext *ctx = avformat_alloc_context();
+    if (!ctx) {
+        LOGE("Could not allocate image decoder context");
+        return NULL;
+    }
+
+    if (avformat_open_input(&ctx, path, NULL, NULL) < 0) {
+        LOGE("Could not open image codec: %s", path);
+        goto free_ctx;
+    }
+
+    if (avformat_find_stream_info(ctx, NULL) < 0) {
+        LOGE("Could not find image stream info");
+        goto close_input;
+    }
+
+    int stream = av_find_best_stream(ctx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
+    if (stream < 0 ) {
+        LOGE("Could not find best image stream");
+        goto close_input;
+    }
+
+    AVCodecParameters *params = ctx->streams[stream]->codecpar;
+
+    AVCodec *codec = avcodec_find_decoder(params->codec_id);
+    if (!codec) {
+        LOGE("Could not find image decoder");
+        goto close_input;
+    }
+
+    AVCodecContext *codec_ctx = avcodec_alloc_context3(codec);
+    if (!codec_ctx) {
+        LOGE("Could not allocate codec context");
+        goto close_input;
+    }
+
+    if (avcodec_parameters_to_context(codec_ctx, params) < 0) {
+        LOGE("Could not fill codec context");
+        goto free_codec_ctx;
+    }
+
+    if (avcodec_open2(codec_ctx, codec, NULL) < 0) {
+        LOGE("Could not open image codec");
+        goto free_codec_ctx;
+    }
+
+    AVFrame *frame = av_frame_alloc();
+    if (!frame) {
+        LOGE("Could not allocate frame");
+        goto close_codec;
+    }
+
+    AVPacket *packet = av_packet_alloc();
+    if (!packet) {
+        LOGE("Could not allocate packet");
+        av_frame_free(&frame);
+        goto close_codec;
+    }
+
+    if (av_read_frame(ctx, packet) < 0) {
+        LOGE("Could not read frame");
+        av_packet_free(&packet);
+        av_frame_free(&frame);
+        goto close_codec;
+    }
+
+    int ret;
+    if ((ret = avcodec_send_packet(codec_ctx, packet)) < 0) {
+        LOGE("Could not send icon packet: %d", ret);
+        av_packet_free(&packet);
+        av_frame_free(&frame);
+        goto close_codec;
+    }
+
+    if ((ret = avcodec_receive_frame(codec_ctx, frame)) != 0) {
+        LOGE("Could not receive icon frame: %d", ret);
+        av_packet_free(&packet);
+        av_frame_free(&frame);
+        goto close_codec;
+    }
+
+    av_packet_free(&packet);
+
+    result = frame;
+
+close_codec:
+    avcodec_close(codec_ctx);
+free_codec_ctx:
+    avcodec_free_context(&codec_ctx);
+close_input:
+    avformat_close_input(&ctx);
+free_ctx:
+    avformat_free_context(ctx);
+
+    return result;
+}
+
+static SDL_PixelFormatEnum
+to_sdl_pixel_format(enum AVPixelFormat fmt) {
+    switch (fmt) {
+        case AV_PIX_FMT_RGB24: return SDL_PIXELFORMAT_RGB24;
+        case AV_PIX_FMT_BGR24: return SDL_PIXELFORMAT_BGR24;
+        case AV_PIX_FMT_ARGB: return SDL_PIXELFORMAT_ARGB32;
+        case AV_PIX_FMT_RGBA: return SDL_PIXELFORMAT_RGBA32;
+        case AV_PIX_FMT_ABGR: return SDL_PIXELFORMAT_ABGR32;
+        case AV_PIX_FMT_BGRA: return SDL_PIXELFORMAT_BGRA32;
+        case AV_PIX_FMT_RGB565BE: return SDL_PIXELFORMAT_RGB565;
+        case AV_PIX_FMT_RGB555BE: return SDL_PIXELFORMAT_RGB555;
+        case AV_PIX_FMT_BGR565BE: return SDL_PIXELFORMAT_BGR565;
+        case AV_PIX_FMT_BGR555BE: return SDL_PIXELFORMAT_BGR555;
+        case AV_PIX_FMT_RGB444BE: return SDL_PIXELFORMAT_RGB444;
+        case AV_PIX_FMT_BGR444BE: return SDL_PIXELFORMAT_BGR444;
+        case AV_PIX_FMT_PAL8: return SDL_PIXELFORMAT_INDEX8;
+        default: return SDL_PIXELFORMAT_UNKNOWN;
+    }
+}
+
+static SDL_Surface *
+load_from_path(const char *path) {
+    AVFrame *frame = decode_image(path);
+    if (!frame) {
+        return NULL;
+    }
+
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+    if (!desc) {
+        LOGE("Could not get icon format descriptor");
+        goto error;
+    }
+
+    bool is_packed = !(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
+    if (!is_packed) {
+        LOGE("Could not load non-packed icon");
+        goto error;
+    }
+
+    SDL_PixelFormatEnum format = to_sdl_pixel_format(frame->format);
+    if (format == SDL_PIXELFORMAT_UNKNOWN) {
+        LOGE("Unsupported icon pixel format: %s (%d)", desc->name,
+                                                       frame->format);
+        goto error;
+    }
+
+    int bits_per_pixel = av_get_bits_per_pixel(desc);
+    SDL_Surface *surface =
+        SDL_CreateRGBSurfaceWithFormatFrom(frame->data[0],
+                                           frame->width, frame->height,
+                                           bits_per_pixel,
+                                           frame->linesize[0],
+                                           format);
+
+    if (!surface) {
+        LOGE("Could not create icon surface");
+        goto error;
+    }
+
+    if (frame->format == AV_PIX_FMT_PAL8) {
+        // Initialize the SDL palette
+        uint8_t *data = frame->data[1];
+        SDL_Color colors[256];
+        for (int i = 0; i < 256; ++i) {
+            SDL_Color *color = &colors[i];
+
+            // The palette is transported in AVFrame.data[1], is 1024 bytes
+            // long (256 4-byte entries) and is formatted the same as in
+            // AV_PIX_FMT_RGB32 described above (i.e., it is also
+            // endian-specific).
+            // <https://ffmpeg.org/doxygen/4.1/pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5>
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+            color->a = data[i * 4];
+            color->r = data[i * 4 + 1];
+            color->g = data[i * 4 + 2];
+            color->b = data[i * 4 + 3];
+#else
+            color->a = data[i * 4 + 3];
+            color->r = data[i * 4 + 2];
+            color->g = data[i * 4 + 1];
+            color->b = data[i * 4];
+#endif
+        }
+
+        SDL_Palette *palette = surface->format->palette;
+        assert(palette);
+        int ret = SDL_SetPaletteColors(palette, colors, 0, 256);
+        if (ret) {
+            LOGE("Could not set palette colors");
+            SDL_FreeSurface(surface);
+            goto error;
+        }
+    }
+
+    surface->userdata = frame; // frame owns the data
+
+    return surface;
+
+error:
+    av_frame_free(&frame);
+    return NULL;
+}
+
+SDL_Surface *
+scrcpy_icon_load() {
+    char *icon_path = get_icon_path();
+    if (!icon_path) {
+        return NULL;
+    }
+
+    SDL_Surface *icon = load_from_path(icon_path);
+    free(icon_path);
+    return icon;
+}
+
+void
+scrcpy_icon_destroy(SDL_Surface *icon) {
+    AVFrame *frame = icon->userdata;
+    assert(frame);
+    av_frame_free(&frame);
+    SDL_FreeSurface(icon);
+}

app/src/icon.h

@@ -0,0 +1,16 @@
+#ifndef ICON_H
+#define ICON_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <SDL2/SDL.h>
+#include <libavformat/avformat.h>
+
+SDL_Surface *
+scrcpy_icon_load(void);
+
+void
+scrcpy_icon_destroy(SDL_Surface *icon);
+
+#endif

app/src/icon.xpm

@@ -1,53 +0,0 @@
-/* XPM */
-static char * icon_xpm[] = {
-"48 48 2 1",
-" 	c None",
-".	c #96C13E",
-"              ..                ..              ",
-"              ...              ...              ",
-"               ...   ......   ...               ",
-"                ................                ",
-"                 ..............                 ",
-"                ................                ",
-"               ..................               ",
-"              ....................              ",
-"             .....  ........  .....             ",
-"             .....  ........  .....             ",
-"             ......................             ",
-"            ........................            ",
-"            ........................            ",
-"            ........................            ",
-"                                                ",
-"                                                ",
-"     ....   ........................   ....     ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"    ......  ........................  ......    ",
-"     ....   ........................   ....     ",
-"            ........................            ",
-"             ......................             ",
-"                ......    ......                ",
-"                ......    ......                ",
-"                ......    ......                ",
-"                ......    ......                ",
-"                ......    ......                ",
-"                ......    ......                ",
-"                ......    ......                ",
-"                ......    ......                ",
-"                ......    ......                ",
-"                 ....      ....                 "};

app/src/input_manager.c

@@ -1,40 +1,89 @@
 #include "input_manager.h"
 
-#include <SDL2/SDL_assert.h>
+#include <assert.h>
-#include "convert.h"
+#include <SDL2/SDL_keycode.h>
-#include "lock_util.h"
-#include "log.h"
 
-// Convert window coordinates (as provided by SDL_GetMouseState() to renderer
+#include "util/log.h"
-// coordinates (as provided in SDL mouse events)
-//
-// See my question:
-// <https://stackoverflow.com/questions/49111054/how-to-get-mouse-position-on-mouse-wheel-event>
-static void
-convert_to_renderer_coordinates(SDL_Renderer *renderer, int *x, int *y) {
-    SDL_Rect viewport;
-    float scale_x, scale_y;
-    SDL_RenderGetViewport(renderer, &viewport);
-    SDL_RenderGetScale(renderer, &scale_x, &scale_y);
-    *x = (int) (*x / scale_x) - viewport.x;
-    *y = (int) (*y / scale_y) - viewport.y;
-}
-
-static struct point
-get_mouse_point(struct screen *screen) {
-    int x;
-    int y;
-    SDL_GetMouseState(&x, &y);
-    convert_to_renderer_coordinates(screen->renderer, &x, &y);
-    return (struct point) {
-        .x = x,
-        .y = y,
-    };
-}
 
 static const int ACTION_DOWN = 1;
 static const int ACTION_UP = 1 << 1;
 
+#define SC_SDL_SHORTCUT_MODS_MASK (KMOD_CTRL | KMOD_ALT | KMOD_GUI)
+
+static inline uint16_t
+to_sdl_mod(unsigned mod) {
+    uint16_t sdl_mod = 0;
+    if (mod & SC_MOD_LCTRL) {
+        sdl_mod |= KMOD_LCTRL;
+    }
+    if (mod & SC_MOD_RCTRL) {
+        sdl_mod |= KMOD_RCTRL;
+    }
+    if (mod & SC_MOD_LALT) {
+        sdl_mod |= KMOD_LALT;
+    }
+    if (mod & SC_MOD_RALT) {
+        sdl_mod |= KMOD_RALT;
+    }
+    if (mod & SC_MOD_LSUPER) {
+        sdl_mod |= KMOD_LGUI;
+    }
+    if (mod & SC_MOD_RSUPER) {
+        sdl_mod |= KMOD_RGUI;
+    }
+    return sdl_mod;
+}
+
+static bool
+is_shortcut_mod(struct input_manager *im, uint16_t sdl_mod) {
+    // keep only the relevant modifier keys
+    sdl_mod &= SC_SDL_SHORTCUT_MODS_MASK;
+
+    assert(im->sdl_shortcut_mods.count);
+    assert(im->sdl_shortcut_mods.count < SC_MAX_SHORTCUT_MODS);
+    for (unsigned i = 0; i < im->sdl_shortcut_mods.count; ++i) {
+        if (im->sdl_shortcut_mods.data[i] == sdl_mod) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+void
+input_manager_init(struct input_manager *im, struct controller *controller,
+                   struct screen *screen, struct sc_key_processor *kp,
+                   struct sc_mouse_processor *mp,
+                   const struct scrcpy_options *options) {
+    assert(!options->control || (kp && kp->ops));
+    assert(!options->control || (mp && mp->ops));
+
+    im->controller = controller;
+    im->screen = screen;
+    im->kp = kp;
+    im->mp = mp;
+
+    im->control = options->control;
+    im->forward_all_clicks = options->forward_all_clicks;
+    im->legacy_paste = options->legacy_paste;
+
+    const struct sc_shortcut_mods *shortcut_mods = &options->shortcut_mods;
+    assert(shortcut_mods->count);
+    assert(shortcut_mods->count < SC_MAX_SHORTCUT_MODS);
+    for (unsigned i = 0; i < shortcut_mods->count; ++i) {
+        uint16_t sdl_mod = to_sdl_mod(shortcut_mods->data[i]);
+        assert(sdl_mod);
+        im->sdl_shortcut_mods.data[i] = sdl_mod;
+    }
+    im->sdl_shortcut_mods.count = shortcut_mods->count;
+
+    im->vfinger_down = false;
+
+    im->last_keycode = SDLK_UNKNOWN;
+    im->last_mod = 0;
+    im->key_repeat = 0;
+}
+
 static void
 send_keycode(struct controller *controller, enum android_keycode keycode,
              int actions, const char *name) {
@@ -43,6 +92,7 @@ send_keycode(struct controller *controller, enum android_keycode keycode,
     msg.type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
     msg.inject_keycode.keycode = keycode;
     msg.inject_keycode.metastate = 0;
+    msg.inject_keycode.repeat = 0;
 
     if (actions & ACTION_DOWN) {
         msg.inject_keycode.action = AKEY_EVENT_ACTION_DOWN;
@@ -95,14 +145,36 @@ action_menu(struct controller *controller, int actions) {
     send_keycode(controller, AKEYCODE_MENU, actions, "MENU");
 }
 
+static inline void
+action_copy(struct controller *controller, int actions) {
+    send_keycode(controller, AKEYCODE_COPY, actions, "COPY");
+}
+
+static inline void
+action_cut(struct controller *controller, int actions) {
+    send_keycode(controller, AKEYCODE_CUT, actions, "CUT");
+}
+
 // turn the screen on if it was off, press BACK otherwise
+// If the screen is off, it is turned on only on ACTION_DOWN
 static void
-press_back_or_turn_screen_on(struct controller *controller) {
+press_back_or_turn_screen_on(struct controller *controller, int actions) {
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON;
 
-    if (!controller_push_msg(controller, &msg)) {
+    if (actions & ACTION_DOWN) {
-        LOGW("Could not request 'turn screen on'");
+        msg.back_or_screen_on.action = AKEY_EVENT_ACTION_DOWN;
+        if (!controller_push_msg(controller, &msg)) {
+            LOGW("Could not request 'press back or turn screen on'");
+            return;
+        }
+    }
+
+    if (actions & ACTION_UP) {
+        msg.back_or_screen_on.action = AKEY_EVENT_ACTION_UP;
+        if (!controller_push_msg(controller, &msg)) {
+            LOGW("Could not request 'press back or turn screen on'");
+        }
     }
 }
 
@@ -117,9 +189,19 @@ expand_notification_panel(struct controller *controller) {
 }
 
 static void
-collapse_notification_panel(struct controller *controller) {
+expand_settings_panel(struct controller *controller) {
     struct control_msg msg;
-    msg.type = CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL;
+    msg.type = CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL;
+
+    if (!controller_push_msg(controller, &msg)) {
+        LOGW("Could not request 'expand settings panel'");
+    }
+}
+
+static void
+collapse_panels(struct controller *controller) {
+    struct control_msg msg;
+    msg.type = CONTROL_MSG_TYPE_COLLAPSE_PANELS;
 
     if (!controller_push_msg(controller, &msg)) {
         LOGW("Could not request 'collapse notification panel'");
@@ -127,17 +209,7 @@ collapse_notification_panel(struct controller *controller) {
 }
 
 static void
-request_device_clipboard(struct controller *controller) {
+set_device_clipboard(struct controller *controller, bool paste) {
-    struct control_msg msg;
-    msg.type = CONTROL_MSG_TYPE_GET_CLIPBOARD;
-
-    if (!controller_push_msg(controller, &msg)) {
-        LOGW("Could not request device clipboard");
-    }
-}
-
-static void
-set_device_clipboard(struct controller *controller) {
     char *text = SDL_GetClipboardText();
     if (!text) {
         LOGW("Could not get clipboard text: %s", SDL_GetError());
@@ -149,12 +221,20 @@ set_device_clipboard(struct controller *controller) {
         return;
     }
 
+    char *text_dup = strdup(text);
+    SDL_free(text);
+    if (!text_dup) {
+        LOGW("Could not strdup input text");
+        return;
+    }
+
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_SET_CLIPBOARD;
-    msg.set_clipboard.text = text;
+    msg.set_clipboard.text = text_dup;
+    msg.set_clipboard.paste = paste;
 
     if (!controller_push_msg(controller, &msg)) {
-        SDL_free(text);
+        free(text_dup);
         LOGW("Could not request 'set device clipboard'");
     }
 }
@@ -200,169 +280,229 @@ clipboard_paste(struct controller *controller) {
         return;
     }
 
+    char *text_dup = strdup(text);
+    SDL_free(text);
+    if (!text_dup) {
+        LOGW("Could not strdup input text");
+        return;
+    }
+
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
-    msg.inject_text.text = text;
+    msg.inject_text.text = text_dup;
     if (!controller_push_msg(controller, &msg)) {
-        SDL_free(text);
+        free(text_dup);
         LOGW("Could not request 'paste clipboard'");
     }
 }
 
-void
+static void
-input_manager_process_text_input(struct input_manager *input_manager,
+rotate_device(struct controller *controller) {
-                                 const SDL_TextInputEvent *event) {
-    char c = event->text[0];
-    if (isalpha(c) || c == ' ') {
-        SDL_assert(event->text[1] == '\0');
-        // letters and space are handled as raw key event
-        return;
-    }
     struct control_msg msg;
-    msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
+    msg.type = CONTROL_MSG_TYPE_ROTATE_DEVICE;
-    msg.inject_text.text = SDL_strdup(event->text);
+
-    if (!msg.inject_text.text) {
+    if (!controller_push_msg(controller, &msg)) {
-        LOGW("Could not strdup input text");
+        LOGW("Could not request device rotation");
-        return;
-    }
-    if (!controller_push_msg(input_manager->controller, &msg)) {
-        SDL_free(msg.inject_text.text);
-        LOGW("Could not request 'inject text'");
     }
 }
 
-void
+static void
-input_manager_process_key(struct input_manager *input_manager,
+rotate_client_left(struct screen *screen) {
-                          const SDL_KeyboardEvent *event,
+    unsigned new_rotation = (screen->rotation + 1) % 4;
-                          bool control) {
+    screen_set_rotation(screen, new_rotation);
+}
+
+static void
+rotate_client_right(struct screen *screen) {
+    unsigned new_rotation = (screen->rotation + 3) % 4;
+    screen_set_rotation(screen, new_rotation);
+}
+
+static void
+input_manager_process_text_input(struct input_manager *im,
+                                 const SDL_TextInputEvent *event) {
+    if (is_shortcut_mod(im, SDL_GetModState())) {
+        // A shortcut must never generate text events
+        return;
+    }
+
+    im->kp->ops->process_text(im->kp, event);
+}
+
+static bool
+simulate_virtual_finger(struct input_manager *im,
+                        enum android_motionevent_action action,
+                        struct sc_point point) {
+    bool up = action == AMOTION_EVENT_ACTION_UP;
+
+    struct control_msg msg;
+    msg.type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
+    msg.inject_touch_event.action = action;
+    msg.inject_touch_event.position.screen_size = im->screen->frame_size;
+    msg.inject_touch_event.position.point = point;
+    msg.inject_touch_event.pointer_id = POINTER_ID_VIRTUAL_FINGER;
+    msg.inject_touch_event.pressure = up ? 0.0f : 1.0f;
+    msg.inject_touch_event.buttons = 0;
+
+    if (!controller_push_msg(im->controller, &msg)) {
+        LOGW("Could not request 'inject virtual finger event'");
+        return false;
+    }
+
+    return true;
+}
+
+static struct sc_point
+inverse_point(struct sc_point point, struct sc_size size) {
+    point.x = size.width - point.x;
+    point.y = size.height - point.y;
+    return point;
+}
+
+static void
+input_manager_process_key(struct input_manager *im,
+                          const SDL_KeyboardEvent *event) {
     // control: indicates the state of the command-line option --no-control
-    // ctrl: the Ctrl key
+    bool control = im->control;
 
-    bool ctrl = event->keysym.mod & (KMOD_LCTRL | KMOD_RCTRL);
+    struct controller *controller = im->controller;
-    bool alt = event->keysym.mod & (KMOD_LALT | KMOD_RALT);
-    bool meta = event->keysym.mod & (KMOD_LGUI | KMOD_RGUI);
 
-    // use Cmd on macOS, Ctrl on other platforms
+    SDL_Keycode keycode = event->keysym.sym;
-#ifdef __APPLE__
+    uint16_t mod = event->keysym.mod;
-    bool cmd = !ctrl && meta;
+    bool down = event->type == SDL_KEYDOWN;
-#else
+    bool ctrl = event->keysym.mod & KMOD_CTRL;
-    if (meta) {
+    bool shift = event->keysym.mod & KMOD_SHIFT;
-        // no shortcuts involve Meta on platforms other than macOS, and it must
+    bool repeat = event->repeat;
-        // not be forwarded to the device
-        return;
-    }
-    bool cmd = ctrl; // && !meta, already guaranteed
-#endif
 
-    if (alt) {
+    bool smod = is_shortcut_mod(im, mod);
-        // no shortcuts involve Alt, and it must not be forwarded to the device
+
-        return;
+    if (down && !repeat) {
+        if (keycode == im->last_keycode && mod == im->last_mod) {
+            ++im->key_repeat;
+        } else {
+            im->key_repeat = 0;
+            im->last_keycode = keycode;
+            im->last_mod = mod;
+        }
     }
 
-    struct controller *controller = input_manager->controller;
+    // The shortcut modifier is pressed
-
+    if (smod) {
-    // capture all Ctrl events
-    if (ctrl || cmd) {
-        SDL_Keycode keycode = event->keysym.sym;
-        bool down = event->type == SDL_KEYDOWN;
         int action = down ? ACTION_DOWN : ACTION_UP;
-        bool repeat = event->repeat;
-        bool shift = event->keysym.mod & (KMOD_LSHIFT | KMOD_RSHIFT);
         switch (keycode) {
             case SDLK_h:
-                // Ctrl+h on all platform, since Cmd+h is already captured by
+                if (control && !shift && !repeat) {
-                // the system on macOS to hide the window
-                if (control && ctrl && !meta && !shift && !repeat) {
                     action_home(controller, action);
                 }
                 return;
             case SDLK_b: // fall-through
             case SDLK_BACKSPACE:
-                if (control && cmd && !shift && !repeat) {
+                if (control && !shift && !repeat) {
                     action_back(controller, action);
                 }
                 return;
             case SDLK_s:
-                if (control && cmd && !shift && !repeat) {
+                if (control && !shift && !repeat) {
                     action_app_switch(controller, action);
                 }
                 return;
             case SDLK_m:
-                // Ctrl+m on all platform, since Cmd+m is already captured by
+                if (control && !shift && !repeat) {
-                // the system on macOS to minimize the window
-                if (control && ctrl && !meta && !shift && !repeat) {
                     action_menu(controller, action);
                 }
                 return;
             case SDLK_p:
-                if (control && cmd && !shift && !repeat) {
+                if (control && !shift && !repeat) {
                     action_power(controller, action);
                 }
                 return;
             case SDLK_o:
-                if (control && cmd && !shift && down) {
+                if (control && !repeat && down) {
-                    set_screen_power_mode(controller, SCREEN_POWER_MODE_OFF);
+                    enum screen_power_mode mode = shift
+                                                ? SCREEN_POWER_MODE_NORMAL
+                                                : SCREEN_POWER_MODE_OFF;
+                    set_screen_power_mode(controller, mode);
                 }
                 return;
             case SDLK_DOWN:
-                if (control && cmd && !shift) {
+                if (control && !shift) {
                     // forward repeated events
                     action_volume_down(controller, action);
                 }
                 return;
             case SDLK_UP:
-                if (control && cmd && !shift) {
+                if (control && !shift) {
                     // forward repeated events
                     action_volume_up(controller, action);
                 }
                 return;
+            case SDLK_LEFT:
+                if (!shift && !repeat && down) {
+                    rotate_client_left(im->screen);
+                }
+                return;
+            case SDLK_RIGHT:
+                if (!shift && !repeat && down) {
+                    rotate_client_right(im->screen);
+                }
+                return;
             case SDLK_c:
-                if (control && cmd && !shift && !repeat && down) {
+                if (control && !shift && !repeat) {
-                    request_device_clipboard(controller);
+                    action_copy(controller, action);
+                }
+                return;
+            case SDLK_x:
+                if (control && !shift && !repeat) {
+                    action_cut(controller, action);
                 }
                 return;
             case SDLK_v:
-                if (control && cmd && !repeat && down) {
+                if (control && !repeat && down) {
-                    if (shift) {
+                    if (shift || im->legacy_paste) {
-                        // store the text in the device clipboard
-                        set_device_clipboard(controller);
-                    } else {
                         // inject the text as input events
                         clipboard_paste(controller);
+                    } else {
+                        // store the text in the device clipboard and paste
+                        set_device_clipboard(controller, true);
                     }
                 }
                 return;
             case SDLK_f:
-                if (!shift && cmd && !repeat && down) {
+                if (!shift && !repeat && down) {
-                    screen_switch_fullscreen(input_manager->screen);
+                    screen_switch_fullscreen(im->screen);
                 }
                 return;
-            case SDLK_x:
+            case SDLK_w:
-                if (!shift && cmd && !repeat && down) {
+                if (!shift && !repeat && down) {
-                    screen_resize_to_fit(input_manager->screen);
+                    screen_resize_to_fit(im->screen);
                 }
                 return;
             case SDLK_g:
-                if (!shift && cmd && !repeat && down) {
+                if (!shift && !repeat && down) {
-                    screen_resize_to_pixel_perfect(input_manager->screen);
+                    screen_resize_to_pixel_perfect(im->screen);
                 }
                 return;
             case SDLK_i:
-                if (!shift && cmd && !repeat && down) {
+                if (!shift && !repeat && down) {
-                    struct fps_counter *fps_counter =
+                    switch_fps_counter_state(&im->screen->fps_counter);
-                        input_manager->video_buffer->fps_counter;
-                    switch_fps_counter_state(fps_counter);
                 }
                 return;
             case SDLK_n:
-                if (control && cmd && !repeat && down) {
+                if (control && !repeat && down) {
                     if (shift) {
-                        collapse_notification_panel(controller);
+                        collapse_panels(controller);
-                    } else {
+                    } else if (im->key_repeat == 0) {
                         expand_notification_panel(controller);
+                    } else {
+                        expand_settings_panel(controller);
                     }
                 }
                 return;
+            case SDLK_r:
+                if (control && !shift && !repeat && down) {
+                    rotate_device(controller);
+                }
+                return;
         }
 
         return;
@@ -372,57 +512,100 @@ input_manager_process_key(struct input_manager *input_manager,
         return;
     }
 
-    struct control_msg msg;
+    if (ctrl && !shift && keycode == SDLK_v && down && !repeat) {
-    if (input_key_from_sdl_to_android(event, &msg)) {
+        if (im->legacy_paste) {
-        if (!controller_push_msg(controller, &msg)) {
+            // inject the text as input events
-            LOGW("Could not request 'inject keycode'");
+            clipboard_paste(controller);
+            return;
         }
+        // Synchronize the computer clipboard to the device clipboard before
+        // sending Ctrl+v, to allow seamless copy-paste.
+        set_device_clipboard(controller, false);
     }
+
+    im->kp->ops->process_key(im->kp, event);
 }
 
-void
+static void
-input_manager_process_mouse_motion(struct input_manager *input_manager,
+input_manager_process_mouse_motion(struct input_manager *im,
                                    const SDL_MouseMotionEvent *event) {
-    if (!event->state) {
+    uint32_t mask = SDL_BUTTON_LMASK;
-        // do not send motion events when no button is pressed
+    if (im->forward_all_clicks) {
+        mask |= SDL_BUTTON_MMASK | SDL_BUTTON_RMASK;
+    }
+    if (!(event->state & mask)) {
+        // do not send motion events when no click is pressed
         return;
     }
-    struct control_msg msg;
+    if (event->which == SDL_TOUCH_MOUSEID) {
-    if (mouse_motion_from_sdl_to_android(event,
+        // simulated from touch events, so it's a duplicate
-                                         input_manager->screen->frame_size,
+        return;
-                                         &msg)) {
+    }
-        if (!controller_push_msg(input_manager->controller, &msg)) {
+
-            LOGW("Could not request 'inject mouse motion event'");
+    im->mp->ops->process_mouse_motion(im->mp, event);
-        }
+
+    if (im->vfinger_down) {
+        struct sc_point mouse =
+            screen_convert_window_to_frame_coords(im->screen, event->x,
+                                                  event->y);
+        struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size);
+        simulate_virtual_finger(im, AMOTION_EVENT_ACTION_MOVE, vfinger);
     }
 }
 
-static bool
+static void
-is_outside_device_screen(struct input_manager *input_manager, int x, int y)
+input_manager_process_touch(struct input_manager *im,
-{
+                            const SDL_TouchFingerEvent *event) {
-    return x < 0 || x >= input_manager->screen->frame_size.width ||
+    im->mp->ops->process_touch(im->mp, event);
-           y < 0 || y >= input_manager->screen->frame_size.height;
 }
 
-void
+static void
-input_manager_process_mouse_button(struct input_manager *input_manager,
+input_manager_process_mouse_button(struct input_manager *im,
-                                   const SDL_MouseButtonEvent *event,
+                                   const SDL_MouseButtonEvent *event) {
-                                   bool control) {
+    bool control = im->control;
-    if (event->type == SDL_MOUSEBUTTONDOWN) {
+
+    if (event->which == SDL_TOUCH_MOUSEID) {
+        // simulated from touch events, so it's a duplicate
+        return;
+    }
+
+    bool down = event->type == SDL_MOUSEBUTTONDOWN;
+    if (!im->forward_all_clicks) {
+        int action = down ? ACTION_DOWN : ACTION_UP;
+
+        if (control && event->button == SDL_BUTTON_X1) {
+            action_app_switch(im->controller, action);
+            return;
+        }
+        if (control && event->button == SDL_BUTTON_X2 && down) {
+            if (event->clicks < 2) {
+                expand_notification_panel(im->controller);
+            } else {
+                expand_settings_panel(im->controller);
+            }
+            return;
+        }
         if (control && event->button == SDL_BUTTON_RIGHT) {
-            press_back_or_turn_screen_on(input_manager->controller);
+            press_back_or_turn_screen_on(im->controller, action);
             return;
         }
         if (control && event->button == SDL_BUTTON_MIDDLE) {
-            action_home(input_manager->controller, ACTION_DOWN | ACTION_UP);
+            action_home(im->controller, action);
             return;
         }
+
         // double-click on black borders resize to fit the device screen
         if (event->button == SDL_BUTTON_LEFT && event->clicks == 2) {
-            bool outside =
+            int32_t x = event->x;
-                is_outside_device_screen(input_manager, event->x, event->y);
+            int32_t y = event->y;
+            screen_hidpi_scale_coords(im->screen, &x, &y);
+            SDL_Rect *r = &im->screen->rect;
+            bool outside = x < r->x || x >= r->x + r->w
+                        || y < r->y || y >= r->y + r->h;
             if (outside) {
-                screen_resize_to_fit(input_manager->screen);
+                if (down) {
+                    screen_resize_to_fit(im->screen);
+                }
                 return;
             }
         }
@@ -433,27 +616,79 @@ input_manager_process_mouse_button(struct input_manager *input_manager,
         return;
     }
 
-    struct control_msg msg;
+    im->mp->ops->process_mouse_button(im->mp, event);
-    if (mouse_button_from_sdl_to_android(event,
+
-                                         input_manager->screen->frame_size,
+    // Pinch-to-zoom simulation.
-                                         &msg)) {
+    //
-        if (!controller_push_msg(input_manager->controller, &msg)) {
+    // If Ctrl is hold when the left-click button is pressed, then
-            LOGW("Could not request 'inject mouse button event'");
+    // pinch-to-zoom mode is enabled: on every mouse event until the left-click
+    // button is released, an additional "virtual finger" event is generated,
+    // having a position inverted through the center of the screen.
+    //
+    // In other words, the center of the rotation/scaling is the center of the
+    // screen.
+#define CTRL_PRESSED (SDL_GetModState() & (KMOD_LCTRL | KMOD_RCTRL))
+    if ((down && !im->vfinger_down && CTRL_PRESSED)
+            || (!down && im->vfinger_down)) {
+        struct sc_point mouse =
+            screen_convert_window_to_frame_coords(im->screen, event->x,
+                                                              event->y);
+        struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size);
+        enum android_motionevent_action action = down
+                                               ? AMOTION_EVENT_ACTION_DOWN
+                                               : AMOTION_EVENT_ACTION_UP;
+        if (!simulate_virtual_finger(im, action, vfinger)) {
+            return;
         }
+        im->vfinger_down = down;
     }
 }
 
-void
+static void
-input_manager_process_mouse_wheel(struct input_manager *input_manager,
+input_manager_process_mouse_wheel(struct input_manager *im,
                                   const SDL_MouseWheelEvent *event) {
-    struct position position = {
+    im->mp->ops->process_mouse_wheel(im->mp, event);
-        .screen_size = input_manager->screen->frame_size,
+}
-        .point = get_mouse_point(input_manager->screen),
+
-    };
+bool
-    struct control_msg msg;
+input_manager_handle_event(struct input_manager *im, SDL_Event *event) {
-    if (mouse_wheel_from_sdl_to_android(event, position, &msg)) {
+    switch (event->type) {
-        if (!controller_push_msg(input_manager->controller, &msg)) {
+        case SDL_TEXTINPUT:
-            LOGW("Could not request 'inject mouse wheel event'");
+            if (!im->control) {
-        }
+                return true;
-    }
+            }
+            input_manager_process_text_input(im, &event->text);
+            return true;
+        case SDL_KEYDOWN:
+        case SDL_KEYUP:
+            // some key events do not interact with the device, so process the
+            // event even if control is disabled
+            input_manager_process_key(im, &event->key);
+            return true;
+        case SDL_MOUSEMOTION:
+            if (!im->control) {
+                break;
+            }
+            input_manager_process_mouse_motion(im, &event->motion);
+            return true;
+        case SDL_MOUSEWHEEL:
+            if (!im->control) {
+                break;
+            }
+            input_manager_process_mouse_wheel(im, &event->wheel);
+            return true;
+        case SDL_MOUSEBUTTONDOWN:
+        case SDL_MOUSEBUTTONUP:
+            // some mouse events do not interact with the device, so process
+            // the event even if control is disabled
+            input_manager_process_mouse_button(im, &event->button);
+            return true;
+        case SDL_FINGERMOTION:
+        case SDL_FINGERDOWN:
+        case SDL_FINGERUP:
+            input_manager_process_touch(im, &event->tfinger);
+            return true;
+    }
+
+    return false;
 }

app/src/input_manager.h

@@ -1,40 +1,52 @@
 #ifndef INPUTMANAGER_H
 #define INPUTMANAGER_H
 
+#include "common.h"
+
 #include <stdbool.h>
 
-#include "common.h"
+#include <SDL2/SDL.h>
+
 #include "controller.h"
 #include "fps_counter.h"
-#include "video_buffer.h"
+#include "options.h"
 #include "screen.h"
+#include "trait/key_processor.h"
+#include "trait/mouse_processor.h"
 
 struct input_manager {
     struct controller *controller;
-    struct video_buffer *video_buffer;
     struct screen *screen;
+
+    struct sc_key_processor *kp;
+    struct sc_mouse_processor *mp;
+
+    bool control;
+    bool forward_all_clicks;
+    bool legacy_paste;
+
+    struct {
+        unsigned data[SC_MAX_SHORTCUT_MODS];
+        unsigned count;
+    } sdl_shortcut_mods;
+
+    bool vfinger_down;
+
+    // Tracks the number of identical consecutive shortcut key down events.
+    // Not to be confused with event->repeat, which counts the number of
+    // system-generated repeated key presses.
+    unsigned key_repeat;
+    SDL_Keycode last_keycode;
+    uint16_t last_mod;
 };
 
 void
-input_manager_process_text_input(struct input_manager *input_manager,
+input_manager_init(struct input_manager *im, struct controller *controller,
-                                 const SDL_TextInputEvent *event);
+                   struct screen *screen, struct sc_key_processor *kp,
+                   struct sc_mouse_processor *mp,
+                   const struct scrcpy_options *options);
 
-void
+bool
-input_manager_process_key(struct input_manager *input_manager,
+input_manager_handle_event(struct input_manager *im, SDL_Event *event);
-                          const SDL_KeyboardEvent *event,
-                          bool control);
-
-void
-input_manager_process_mouse_motion(struct input_manager *input_manager,
-                                   const SDL_MouseMotionEvent *event);
-
-void
-input_manager_process_mouse_button(struct input_manager *input_manager,
-                                   const SDL_MouseButtonEvent *event,
-                                   bool control);
-
-void
-input_manager_process_mouse_wheel(struct input_manager *input_manager,
-                                  const SDL_MouseWheelEvent *event);
 
 #endif

app/src/keyboard_inject.c

@@ -1,8 +1,19 @@
-#include "convert.h"
+#include "keyboard_inject.h"
+
+#include <assert.h>
+#include <SDL2/SDL_events.h>
+
+#include "android/input.h"
+#include "control_msg.h"
+#include "controller.h"
+#include "util/log.h"
+
+/** Downcast key processor to sc_keyboard_inject */
+#define DOWNCAST(KP) \
+    container_of(KP, struct sc_keyboard_inject, key_processor)
 
 #define MAP(FROM, TO) case FROM: *to = TO; return true
 #define FAIL default: return false
-
 static bool
 convert_keycode_action(SDL_EventType from, enum android_keyevent_action *to) {
     switch (from) {
@@ -12,9 +23,91 @@ convert_keycode_action(SDL_EventType from, enum android_keyevent_action *to) {
     }
 }
 
+static bool
+convert_keycode(SDL_Keycode from, enum android_keycode *to, uint16_t mod,
+                bool prefer_text) {
+    switch (from) {
+        MAP(SDLK_RETURN,       AKEYCODE_ENTER);
+        MAP(SDLK_KP_ENTER,     AKEYCODE_NUMPAD_ENTER);
+        MAP(SDLK_ESCAPE,       AKEYCODE_ESCAPE);
+        MAP(SDLK_BACKSPACE,    AKEYCODE_DEL);
+        MAP(SDLK_TAB,          AKEYCODE_TAB);
+        MAP(SDLK_PAGEUP,       AKEYCODE_PAGE_UP);
+        MAP(SDLK_DELETE,       AKEYCODE_FORWARD_DEL);
+        MAP(SDLK_HOME,         AKEYCODE_MOVE_HOME);
+        MAP(SDLK_END,          AKEYCODE_MOVE_END);
+        MAP(SDLK_PAGEDOWN,     AKEYCODE_PAGE_DOWN);
+        MAP(SDLK_RIGHT,        AKEYCODE_DPAD_RIGHT);
+        MAP(SDLK_LEFT,         AKEYCODE_DPAD_LEFT);
+        MAP(SDLK_DOWN,         AKEYCODE_DPAD_DOWN);
+        MAP(SDLK_UP,           AKEYCODE_DPAD_UP);
+        MAP(SDLK_LCTRL,        AKEYCODE_CTRL_LEFT);
+        MAP(SDLK_RCTRL,        AKEYCODE_CTRL_RIGHT);
+        MAP(SDLK_LSHIFT,       AKEYCODE_SHIFT_LEFT);
+        MAP(SDLK_RSHIFT,       AKEYCODE_SHIFT_RIGHT);
+    }
+
+    if (!(mod & (KMOD_NUM | KMOD_SHIFT))) {
+        // Handle Numpad events when Num Lock is disabled
+        // If SHIFT is pressed, a text event will be sent instead
+        switch(from) {
+            MAP(SDLK_KP_0,            AKEYCODE_INSERT);
+            MAP(SDLK_KP_1,            AKEYCODE_MOVE_END);
+            MAP(SDLK_KP_2,            AKEYCODE_DPAD_DOWN);
+            MAP(SDLK_KP_3,            AKEYCODE_PAGE_DOWN);
+            MAP(SDLK_KP_4,            AKEYCODE_DPAD_LEFT);
+            MAP(SDLK_KP_6,            AKEYCODE_DPAD_RIGHT);
+            MAP(SDLK_KP_7,            AKEYCODE_MOVE_HOME);
+            MAP(SDLK_KP_8,            AKEYCODE_DPAD_UP);
+            MAP(SDLK_KP_9,            AKEYCODE_PAGE_UP);
+            MAP(SDLK_KP_PERIOD,       AKEYCODE_FORWARD_DEL);
+        }
+    }
+
+    if (prefer_text && !(mod & KMOD_CTRL)) {
+        // do not forward alpha and space key events (unless Ctrl is pressed)
+        return false;
+    }
+
+    if (mod & (KMOD_LALT | KMOD_RALT | KMOD_LGUI | KMOD_RGUI)) {
+        return false;
+    }
+    // if ALT and META are not pressed, also handle letters and space
+    switch (from) {
+        MAP(SDLK_a,            AKEYCODE_A);
+        MAP(SDLK_b,            AKEYCODE_B);
+        MAP(SDLK_c,            AKEYCODE_C);
+        MAP(SDLK_d,            AKEYCODE_D);
+        MAP(SDLK_e,            AKEYCODE_E);
+        MAP(SDLK_f,            AKEYCODE_F);
+        MAP(SDLK_g,            AKEYCODE_G);
+        MAP(SDLK_h,            AKEYCODE_H);
+        MAP(SDLK_i,            AKEYCODE_I);
+        MAP(SDLK_j,            AKEYCODE_J);
+        MAP(SDLK_k,            AKEYCODE_K);
+        MAP(SDLK_l,            AKEYCODE_L);
+        MAP(SDLK_m,            AKEYCODE_M);
+        MAP(SDLK_n,            AKEYCODE_N);
+        MAP(SDLK_o,            AKEYCODE_O);
+        MAP(SDLK_p,            AKEYCODE_P);
+        MAP(SDLK_q,            AKEYCODE_Q);
+        MAP(SDLK_r,            AKEYCODE_R);
+        MAP(SDLK_s,            AKEYCODE_S);
+        MAP(SDLK_t,            AKEYCODE_T);
+        MAP(SDLK_u,            AKEYCODE_U);
+        MAP(SDLK_v,            AKEYCODE_V);
+        MAP(SDLK_w,            AKEYCODE_W);
+        MAP(SDLK_x,            AKEYCODE_X);
+        MAP(SDLK_y,            AKEYCODE_Y);
+        MAP(SDLK_z,            AKEYCODE_Z);
+        MAP(SDLK_SPACE,        AKEYCODE_SPACE);
+        FAIL;
+    }
+}
+
 static enum android_metastate
 autocomplete_metastate(enum android_metastate metastate) {
-    // fill dependant flags
+    // fill dependent flags
     if (metastate & (AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_RIGHT_ON)) {
         metastate |= AMETA_SHIFT_ON;
     }
@@ -31,7 +124,6 @@ autocomplete_metastate(enum android_metastate metastate) {
     return metastate;
 }
 
-
 static enum android_metastate
 convert_meta_state(SDL_Keymod mod) {
     enum android_metastate metastate = 0;
@@ -74,92 +166,8 @@ convert_meta_state(SDL_Keymod mod) {
 }
 
 static bool
-convert_keycode(SDL_Keycode from, enum android_keycode *to, uint16_t mod) {
+convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to,
-    switch (from) {
+                  bool prefer_text, uint32_t repeat) {
-        MAP(SDLK_RETURN,       AKEYCODE_ENTER);
-        MAP(SDLK_KP_ENTER,     AKEYCODE_NUMPAD_ENTER);
-        MAP(SDLK_ESCAPE,       AKEYCODE_ESCAPE);
-        MAP(SDLK_BACKSPACE,    AKEYCODE_DEL);
-        MAP(SDLK_TAB,          AKEYCODE_TAB);
-        MAP(SDLK_PAGEUP,       AKEYCODE_PAGE_UP);
-        MAP(SDLK_DELETE,       AKEYCODE_FORWARD_DEL);
-        MAP(SDLK_HOME,         AKEYCODE_MOVE_HOME);
-        MAP(SDLK_END,          AKEYCODE_MOVE_END);
-        MAP(SDLK_PAGEDOWN,     AKEYCODE_PAGE_DOWN);
-        MAP(SDLK_RIGHT,        AKEYCODE_DPAD_RIGHT);
-        MAP(SDLK_LEFT,         AKEYCODE_DPAD_LEFT);
-        MAP(SDLK_DOWN,         AKEYCODE_DPAD_DOWN);
-        MAP(SDLK_UP,           AKEYCODE_DPAD_UP);
-    }
-    if (mod & (KMOD_LALT | KMOD_RALT | KMOD_LGUI | KMOD_RGUI)) {
-        return false;
-    }
-    // if ALT and META are not pressed, also handle letters and space
-    switch (from) {
-        MAP(SDLK_a,            AKEYCODE_A);
-        MAP(SDLK_b,            AKEYCODE_B);
-        MAP(SDLK_c,            AKEYCODE_C);
-        MAP(SDLK_d,            AKEYCODE_D);
-        MAP(SDLK_e,            AKEYCODE_E);
-        MAP(SDLK_f,            AKEYCODE_F);
-        MAP(SDLK_g,            AKEYCODE_G);
-        MAP(SDLK_h,            AKEYCODE_H);
-        MAP(SDLK_i,            AKEYCODE_I);
-        MAP(SDLK_j,            AKEYCODE_J);
-        MAP(SDLK_k,            AKEYCODE_K);
-        MAP(SDLK_l,            AKEYCODE_L);
-        MAP(SDLK_m,            AKEYCODE_M);
-        MAP(SDLK_n,            AKEYCODE_N);
-        MAP(SDLK_o,            AKEYCODE_O);
-        MAP(SDLK_p,            AKEYCODE_P);
-        MAP(SDLK_q,            AKEYCODE_Q);
-        MAP(SDLK_r,            AKEYCODE_R);
-        MAP(SDLK_s,            AKEYCODE_S);
-        MAP(SDLK_t,            AKEYCODE_T);
-        MAP(SDLK_u,            AKEYCODE_U);
-        MAP(SDLK_v,            AKEYCODE_V);
-        MAP(SDLK_w,            AKEYCODE_W);
-        MAP(SDLK_x,            AKEYCODE_X);
-        MAP(SDLK_y,            AKEYCODE_Y);
-        MAP(SDLK_z,            AKEYCODE_Z);
-        MAP(SDLK_SPACE,        AKEYCODE_SPACE);
-        FAIL;
-    }
-}
-
-static bool
-convert_mouse_action(SDL_EventType from, enum android_motionevent_action *to) {
-    switch (from) {
-        MAP(SDL_MOUSEBUTTONDOWN, AMOTION_EVENT_ACTION_DOWN);
-        MAP(SDL_MOUSEBUTTONUP,   AMOTION_EVENT_ACTION_UP);
-        FAIL;
-    }
-}
-
-static enum android_motionevent_buttons
-convert_mouse_buttons(uint32_t state) {
-    enum android_motionevent_buttons buttons = 0;
-    if (state & SDL_BUTTON_LMASK) {
-        buttons |= AMOTION_EVENT_BUTTON_PRIMARY;
-    }
-    if (state & SDL_BUTTON_RMASK) {
-        buttons |= AMOTION_EVENT_BUTTON_SECONDARY;
-    }
-    if (state & SDL_BUTTON_MMASK) {
-        buttons |= AMOTION_EVENT_BUTTON_TERTIARY;
-    }
-    if (state & SDL_BUTTON_X1) {
-        buttons |= AMOTION_EVENT_BUTTON_BACK;
-    }
-    if (state & SDL_BUTTON_X2) {
-        buttons |= AMOTION_EVENT_BUTTON_FORWARD;
-    }
-    return buttons;
-}
-
-bool
-input_key_from_sdl_to_android(const SDL_KeyboardEvent *from,
-                              struct control_msg *to) {
     to->type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
 
     if (!convert_keycode_action(from->type, &to->inject_keycode.action)) {
@@ -167,62 +175,80 @@ input_key_from_sdl_to_android(const SDL_KeyboardEvent *from,
     }
 
     uint16_t mod = from->keysym.mod;
-    if (!convert_keycode(from->keysym.sym, &to->inject_keycode.keycode, mod)) {
+    if (!convert_keycode(from->keysym.sym, &to->inject_keycode.keycode, mod,
+                         prefer_text)) {
         return false;
     }
 
+    to->inject_keycode.repeat = repeat;
     to->inject_keycode.metastate = convert_meta_state(mod);
 
     return true;
 }
 
-bool
+static void
-mouse_button_from_sdl_to_android(const SDL_MouseButtonEvent *from,
+sc_key_processor_process_key(struct sc_key_processor *kp,
-                                 struct size screen_size,
+                             const SDL_KeyboardEvent *event) {
-                                 struct control_msg *to) {
+    struct sc_keyboard_inject *ki = DOWNCAST(kp);
-    to->type = CONTROL_MSG_TYPE_INJECT_MOUSE_EVENT;
 
-    if (!convert_mouse_action(from->type, &to->inject_mouse_event.action)) {
+    if (event->repeat) {
-        return false;
+        if (!ki->forward_key_repeat) {
+            return;
+        }
+        ++ki->repeat;
+    } else {
+        ki->repeat = 0;
     }
 
-    to->inject_mouse_event.buttons =
+    struct control_msg msg;
-        convert_mouse_buttons(SDL_BUTTON(from->button));
+    if (convert_input_key(event, &msg, ki->prefer_text, ki->repeat)) {
-    to->inject_mouse_event.position.screen_size = screen_size;
+        if (!controller_push_msg(ki->controller, &msg)) {
-    to->inject_mouse_event.position.point.x = from->x;
+            LOGW("Could not request 'inject keycode'");
-    to->inject_mouse_event.position.point.y = from->y;
+        }
-
+    }
-    return true;
 }
 
-bool
+static void
-mouse_motion_from_sdl_to_android(const SDL_MouseMotionEvent *from,
+sc_key_processor_process_text(struct sc_key_processor *kp,
-                                 struct size screen_size,
+                              const SDL_TextInputEvent *event) {
-                                 struct control_msg *to) {
+    struct sc_keyboard_inject *ki = DOWNCAST(kp);
-    to->type = CONTROL_MSG_TYPE_INJECT_MOUSE_EVENT;
-    to->inject_mouse_event.action = AMOTION_EVENT_ACTION_MOVE;
-    to->inject_mouse_event.buttons = convert_mouse_buttons(from->state);
-    to->inject_mouse_event.position.screen_size = screen_size;
-    to->inject_mouse_event.position.point.x = from->x;
-    to->inject_mouse_event.position.point.y = from->y;
 
-    return true;
+    if (!ki->prefer_text) {
+        char c = event->text[0];
+        if (isalpha(c) || c == ' ') {
+            assert(event->text[1] == '\0');
+            // letters and space are handled as raw key event
+            return;
+        }
+    }
+
+    struct control_msg msg;
+    msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
+    msg.inject_text.text = strdup(event->text);
+    if (!msg.inject_text.text) {
+        LOGW("Could not strdup input text");
+        return;
+    }
+    if (!controller_push_msg(ki->controller, &msg)) {
+        free(msg.inject_text.text);
+        LOGW("Could not request 'inject text'");
+    }
 }
 
-bool
+void
-mouse_wheel_from_sdl_to_android(const SDL_MouseWheelEvent *from,
+sc_keyboard_inject_init(struct sc_keyboard_inject *ki,
-                                struct position position,
+                        struct controller *controller,
-                                struct control_msg *to) {
+                        const struct scrcpy_options *options) {
-    to->type = CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT;
+    ki->controller = controller;
+    ki->prefer_text = options->prefer_text;
+    ki->forward_key_repeat = options->forward_key_repeat;
 
-    to->inject_scroll_event.position = position;
+    ki->repeat = 0;
 
-    int mul = from->direction == SDL_MOUSEWHEEL_NORMAL ? 1 : -1;
+    static const struct sc_key_processor_ops ops = {
-    // SDL behavior seems inconsistent between horizontal and vertical scrolling
+        .process_key = sc_key_processor_process_key,
-    // so reverse the horizontal
+        .process_text = sc_key_processor_process_text,
-    // <https://wiki.libsdl.org/SDL_MouseWheelEvent#Remarks>
+    };
-    to->inject_scroll_event.hscroll = -mul * from->x;
-    to->inject_scroll_event.vscroll = mul * from->y;
 
-    return true;
+    ki->key_processor.ops = &ops;
 }

app/src/keyboard_inject.h

@@ -0,0 +1,30 @@
+#ifndef SC_KEYBOARD_INJECT_H
+#define SC_KEYBOARD_INJECT_H
+
+#include "common.h"
+
+#include <stdbool.h>
+
+#include "controller.h"
+#include "options.h"
+#include "trait/key_processor.h"
+
+struct sc_keyboard_inject {
+    struct sc_key_processor key_processor; // key processor trait
+
+    struct controller *controller;
+
+    // SDL reports repeated events as a boolean, but Android expects the actual
+    // number of repetitions. This variable keeps track of the count.
+    unsigned repeat;
+
+    bool prefer_text;
+    bool forward_key_repeat;
+};
+
+void
+sc_keyboard_inject_init(struct sc_keyboard_inject *ki,
+                        struct controller *controller,
+                        const struct scrcpy_options *options);
+
+#endif

app/src/lock_util.h

@@ -1,51 +0,0 @@
-#ifndef LOCKUTIL_H
-#define LOCKUTIL_H
-
-#include <stdint.h>
-#include <SDL2/SDL_mutex.h>
-
-#include "log.h"
-
-static inline void
-mutex_lock(SDL_mutex *mutex) {
-    if (SDL_LockMutex(mutex)) {
-        LOGC("Could not lock mutex");
-        abort();
-    }
-}
-
-static inline void
-mutex_unlock(SDL_mutex *mutex) {
-    if (SDL_UnlockMutex(mutex)) {
-        LOGC("Could not unlock mutex");
-        abort();
-    }
-}
-
-static inline void
-cond_wait(SDL_cond *cond, SDL_mutex *mutex) {
-    if (SDL_CondWait(cond, mutex)) {
-        LOGC("Could not wait on condition");
-        abort();
-    }
-}
-
-static inline int
-cond_wait_timeout(SDL_cond *cond, SDL_mutex *mutex, uint32_t ms) {
-    int r = SDL_CondWaitTimeout(cond, mutex, ms);
-    if (r < 0) {
-        LOGC("Could not wait on condition with timeout");
-        abort();
-    }
-    return r;
-}
-
-static inline void
-cond_signal(SDL_cond *cond) {
-    if (SDL_CondSignal(cond)) {
-        LOGC("Could not signal a condition");
-        abort();
-    }
-}
-
-#endif

app/src/main.c

@@ -1,191 +1,19 @@
-#include "scrcpy.h"
+#include "common.h"
 
-#include <getopt.h>
+#include <assert.h>
 #include <stdbool.h>
-#include <stdint.h>
 #include <unistd.h>
 #include <libavformat/avformat.h>
+#ifdef HAVE_V4L2
+# include <libavdevice/avdevice.h>
+#endif
 #define SDL_MAIN_HANDLED // avoid link error on Linux Windows Subsystem
 #include <SDL2/SDL.h>
 
-#include "compat.h"
+#include "cli.h"
-#include "config.h"
+#include "options.h"
-#include "log.h"
+#include "scrcpy.h"
-#include "recorder.h"
+#include "util/log.h"
-
-struct args {
-    const char *serial;
-    const char *crop;
-    const char *record_filename;
-    const char *window_title;
-    const char *push_target;
-    enum recorder_format record_format;
-    bool fullscreen;
-    bool no_control;
-    bool no_display;
-    bool help;
-    bool version;
-    bool show_touches;
-    uint16_t port;
-    uint16_t max_size;
-    uint32_t bit_rate;
-    bool always_on_top;
-    bool turn_screen_off;
-    bool render_expired_frames;
-};
-
-static void usage(const char *arg0) {
-#ifdef __APPLE__
-# define CTRL_OR_CMD "Cmd"
-#else
-# define CTRL_OR_CMD "Ctrl"
-#endif
-    fprintf(stderr,
-        "Usage: %s [options]\n"
-        "\n"
-        "Options:\n"
-        "\n"
-        "    -b, --bit-rate value\n"
-        "        Encode the video at the given bit-rate, expressed in bits/s.\n"
-        "        Unit suffixes are supported: 'K' (x1000) and 'M' (x1000000).\n"
-        "        Default is %d.\n"
-        "\n"
-        "    -c, --crop width:height:x:y\n"
-        "        Crop the device screen on the server.\n"
-        "        The values are expressed in the device natural orientation\n"
-        "        (typically, portrait for a phone, landscape for a tablet).\n"
-        "        Any --max-size value is computed on the cropped size.\n"
-        "\n"
-        "    -f, --fullscreen\n"
-        "        Start in fullscreen.\n"
-        "\n"
-        "    -F, --record-format\n"
-        "        Force recording format (either mp4 or mkv).\n"
-        "\n"
-        "    -h, --help\n"
-        "        Print this help.\n"
-        "\n"
-        "    -m, --max-size value\n"
-        "        Limit both the width and height of the video to value. The\n"
-        "        other dimension is computed so that the device aspect-ratio\n"
-        "        is preserved.\n"
-        "        Default is %d%s.\n"
-        "\n"
-        "    -n, --no-control\n"
-        "        Disable device control (mirror the device in read-only).\n"
-        "\n"
-        "    -N, --no-display\n"
-        "        Do not display device (only when screen recording is\n"
-        "        enabled).\n"
-        "\n"
-        "    -p, --port port\n"
-        "        Set the TCP port the client listens on.\n"
-        "        Default is %d.\n"
-        "\n"
-        "    --push-target path\n"
-        "        Set the target directory for pushing files to the device by\n"
-        "        drag & drop. It is passed as-is to \"adb push\".\n"
-        "        Default is \"/sdcard/\".\n"
-        "\n"
-        "    -r, --record file.mp4\n"
-        "        Record screen to file.\n"
-        "        The format is determined by the -F/--record-format option if\n"
-        "        set, or by the file extension (.mp4 or .mkv).\n"
-        "\n"
-        "    --render-expired-frames\n"
-        "        By default, to minimize latency, scrcpy always renders the\n"
-        "        last available decoded frame, and drops any previous ones.\n"
-        "        This flag forces to render all frames, at a cost of a\n"
-        "        possible increased latency.\n"
-        "\n"
-        "    -s, --serial serial\n"
-        "        The device serial number. Mandatory only if several devices\n"
-        "        are connected to adb.\n"
-        "\n"
-        "    -S, --turn-screen-off\n"
-        "        Turn the device screen off immediately.\n"
-        "\n"
-        "    -t, --show-touches\n"
-        "        Enable \"show touches\" on start, disable on quit.\n"
-        "        It only shows physical touches (not clicks from scrcpy).\n"
-        "\n"
-        "    -T, --always-on-top\n"
-        "        Make scrcpy window always on top (above other windows).\n"
-        "\n"
-        "    -v, --version\n"
-        "        Print the version of scrcpy.\n"
-        "\n"
-        "    --window-title text\n"
-        "        Set a custom window title.\n"
-        "\n"
-        "Shortcuts:\n"
-        "\n"
-        "    " CTRL_OR_CMD "+f\n"
-        "        switch fullscreen mode\n"
-        "\n"
-        "    " CTRL_OR_CMD "+g\n"
-        "        resize window to 1:1 (pixel-perfect)\n"
-        "\n"
-        "    " CTRL_OR_CMD "+x\n"
-        "    Double-click on black borders\n"
-        "        resize window to remove black borders\n"
-        "\n"
-        "    Ctrl+h\n"
-        "    Middle-click\n"
-        "        click on HOME\n"
-        "\n"
-        "    " CTRL_OR_CMD "+b\n"
-        "    " CTRL_OR_CMD "+Backspace\n"
-        "    Right-click (when screen is on)\n"
-        "        click on BACK\n"
-        "\n"
-        "    " CTRL_OR_CMD "+s\n"
-        "        click on APP_SWITCH\n"
-        "\n"
-        "    Ctrl+m\n"
-        "        click on MENU\n"
-        "\n"
-        "    " CTRL_OR_CMD "+Up\n"
-        "        click on VOLUME_UP\n"
-        "\n"
-        "    " CTRL_OR_CMD "+Down\n"
-        "        click on VOLUME_DOWN\n"
-        "\n"
-        "    " CTRL_OR_CMD "+p\n"
-        "        click on POWER (turn screen on/off)\n"
-        "\n"
-        "    Right-click (when screen is off)\n"
-        "        power on\n"
-        "\n"
-        "    " CTRL_OR_CMD "+o\n"
-        "        turn device screen off (keep mirroring)\n"
-        "\n"
-        "    " CTRL_OR_CMD "+n\n"
-        "       expand notification panel\n"
-        "\n"
-        "    " CTRL_OR_CMD "+Shift+n\n"
-        "       collapse notification panel\n"
-        "\n"
-        "    " CTRL_OR_CMD "+c\n"
-        "        copy device clipboard to computer\n"
-        "\n"
-        "    " CTRL_OR_CMD "+v\n"
-        "        paste computer clipboard to device\n"
-        "\n"
-        "    " CTRL_OR_CMD "+Shift+v\n"
-        "        copy computer clipboard to device\n"
-        "\n"
-        "    " CTRL_OR_CMD "+i\n"
-        "        enable/disable FPS counter (print frames/second in logs)\n"
-        "\n"
-        "    Drag & drop APK file\n"
-        "        install APK from computer\n"
-        "\n",
-        arg0,
-        DEFAULT_BIT_RATE,
-        DEFAULT_MAX_SIZE, DEFAULT_MAX_SIZE ? "" : " (unlimited)",
-        DEFAULT_LOCAL_PORT);
-}
 
 static void
 print_version(void) {
@@ -203,250 +31,11 @@ print_version(void) {
     fprintf(stderr, " - libavutil %d.%d.%d\n", LIBAVUTIL_VERSION_MAJOR,
                                                LIBAVUTIL_VERSION_MINOR,
                                                LIBAVUTIL_VERSION_MICRO);
-}
+#ifdef HAVE_V4L2
-
+    fprintf(stderr, " - libavdevice %d.%d.%d\n", LIBAVDEVICE_VERSION_MAJOR,
-static bool
+                                                 LIBAVDEVICE_VERSION_MINOR,
-parse_bit_rate(char *optarg, uint32_t *bit_rate) {
+                                                 LIBAVDEVICE_VERSION_MICRO);
-    char *endptr;
+#endif
-    if (*optarg == '\0') {
-        LOGE("Bit-rate parameter is empty");
-        return false;
-    }
-    long value = strtol(optarg, &endptr, 0);
-    int mul = 1;
-    if (*endptr != '\0') {
-        if (optarg == endptr) {
-            LOGE("Invalid bit-rate: %s", optarg);
-            return false;
-        }
-        if ((*endptr == 'M' || *endptr == 'm') && endptr[1] == '\0') {
-            mul = 1000000;
-        } else if ((*endptr == 'K' || *endptr == 'k') && endptr[1] == '\0') {
-            mul = 1000;
-        } else {
-            LOGE("Invalid bit-rate unit: %s", optarg);
-            return false;
-        }
-    }
-    if (value < 0 || ((uint32_t) -1) / mul < value) {
-        LOGE("Bitrate must be positive and less than 2^32: %s", optarg);
-        return false;
-    }
-
-    *bit_rate = (uint32_t) value * mul;
-    return true;
-}
-
-static bool
-parse_max_size(char *optarg, uint16_t *max_size) {
-    char *endptr;
-    if (*optarg == '\0') {
-        LOGE("Max size parameter is empty");
-        return false;
-    }
-    long value = strtol(optarg, &endptr, 0);
-    if (*endptr != '\0') {
-        LOGE("Invalid max size: %s", optarg);
-        return false;
-    }
-    if (value & ~0xffff) {
-        LOGE("Max size must be between 0 and 65535: %ld", value);
-        return false;
-    }
-
-    *max_size = (uint16_t) value;
-    return true;
-}
-
-static bool
-parse_port(char *optarg, uint16_t *port) {
-    char *endptr;
-    if (*optarg == '\0') {
-        LOGE("Invalid port parameter is empty");
-        return false;
-    }
-    long value = strtol(optarg, &endptr, 0);
-    if (*endptr != '\0') {
-        LOGE("Invalid port: %s", optarg);
-        return false;
-    }
-    if (value & ~0xffff) {
-        LOGE("Port out of range: %ld", value);
-        return false;
-    }
-
-    *port = (uint16_t) value;
-    return true;
-}
-
-static bool
-parse_record_format(const char *optarg, enum recorder_format *format) {
-    if (!strcmp(optarg, "mp4")) {
-        *format = RECORDER_FORMAT_MP4;
-        return true;
-    }
-    if (!strcmp(optarg, "mkv")) {
-        *format = RECORDER_FORMAT_MKV;
-        return true;
-    }
-    LOGE("Unsupported format: %s (expected mp4 or mkv)", optarg);
-    return false;
-}
-
-static enum recorder_format
-guess_record_format(const char *filename) {
-    size_t len = strlen(filename);
-    if (len < 4) {
-        return 0;
-    }
-    const char *ext = &filename[len - 4];
-    if (!strcmp(ext, ".mp4")) {
-        return RECORDER_FORMAT_MP4;
-    }
-    if (!strcmp(ext, ".mkv")) {
-        return RECORDER_FORMAT_MKV;
-    }
-    return 0;
-}
-
-#define OPT_RENDER_EXPIRED_FRAMES 1000
-#define OPT_WINDOW_TITLE          1001
-#define OPT_PUSH_TARGET           1002
-
-static bool
-parse_args(struct args *args, int argc, char *argv[]) {
-    static const struct option long_options[] = {
-        {"always-on-top",         no_argument,       NULL, 'T'},
-        {"bit-rate",              required_argument, NULL, 'b'},
-        {"crop",                  required_argument, NULL, 'c'},
-        {"fullscreen",            no_argument,       NULL, 'f'},
-        {"help",                  no_argument,       NULL, 'h'},
-        {"max-size",              required_argument, NULL, 'm'},
-        {"no-control",            no_argument,       NULL, 'n'},
-        {"no-display",            no_argument,       NULL, 'N'},
-        {"port",                  required_argument, NULL, 'p'},
-        {"push-target",           required_argument, NULL,
-                                                 OPT_PUSH_TARGET},
-        {"record",                required_argument, NULL, 'r'},
-        {"record-format",         required_argument, NULL, 'f'},
-        {"render-expired-frames", no_argument,       NULL,
-                                                 OPT_RENDER_EXPIRED_FRAMES},
-        {"serial",                required_argument, NULL, 's'},
-        {"show-touches",          no_argument,       NULL, 't'},
-        {"turn-screen-off",       no_argument,       NULL, 'S'},
-        {"version",               no_argument,       NULL, 'v'},
-        {"window-title",          required_argument, NULL,
-                                                 OPT_WINDOW_TITLE},
-        {NULL,                    0,                 NULL, 0  },
-    };
-    int c;
-    while ((c = getopt_long(argc, argv, "b:c:fF:hm:nNp:r:s:StTv", long_options,
-                            NULL)) != -1) {
-        switch (c) {
-            case 'b':
-                if (!parse_bit_rate(optarg, &args->bit_rate)) {
-                    return false;
-                }
-                break;
-            case 'c':
-                args->crop = optarg;
-                break;
-            case 'f':
-                args->fullscreen = true;
-                break;
-            case 'F':
-                if (!parse_record_format(optarg, &args->record_format)) {
-                    return false;
-                }
-                break;
-            case 'h':
-                args->help = true;
-                break;
-            case 'm':
-                if (!parse_max_size(optarg, &args->max_size)) {
-                    return false;
-                }
-                break;
-            case 'n':
-                args->no_control = true;
-                break;
-            case 'N':
-                args->no_display = true;
-                break;
-            case 'p':
-                if (!parse_port(optarg, &args->port)) {
-                    return false;
-                }
-                break;
-            case 'r':
-                args->record_filename = optarg;
-                break;
-            case 's':
-                args->serial = optarg;
-                break;
-            case 'S':
-                args->turn_screen_off = true;
-                break;
-            case 't':
-                args->show_touches = true;
-                break;
-            case 'T':
-                args->always_on_top = true;
-                break;
-            case 'v':
-                args->version = true;
-                break;
-            case OPT_RENDER_EXPIRED_FRAMES:
-                args->render_expired_frames = true;
-                break;
-            case OPT_WINDOW_TITLE:
-                args->window_title = optarg;
-                break;
-            case OPT_PUSH_TARGET:
-                args->push_target = optarg;
-                break;
-            default:
-                // getopt prints the error message on stderr
-                return false;
-        }
-    }
-
-    if (args->no_display && !args->record_filename) {
-        LOGE("-N/--no-display requires screen recording (-r/--record)");
-        return false;
-    }
-
-    if (args->no_display && args->fullscreen) {
-        LOGE("-f/--fullscreen-window is incompatible with -N/--no-display");
-        return false;
-    }
-
-    int index = optind;
-    if (index < argc) {
-        LOGE("Unexpected additional argument: %s", argv[index]);
-        return false;
-    }
-
-    if (args->record_format && !args->record_filename) {
-        LOGE("Record format specified without recording");
-        return false;
-    }
-
-    if (args->record_filename && !args->record_format) {
-        args->record_format = guess_record_format(args->record_filename);
-        if (!args->record_format) {
-            LOGE("No format specified for \"%s\" (try with -F mkv)",
-                 args->record_filename);
-            return false;
-        }
-    }
-
-    if (args->no_control && args->turn_screen_off) {
-        LOGE("Could not request to turn screen off if control is disabled");
-        return false;
-    }
-
-    return true;
 }
 
 int
@@ -457,31 +46,25 @@ main(int argc, char *argv[]) {
     setbuf(stdout, NULL);
     setbuf(stderr, NULL);
 #endif
-    struct args args = {
+
-        .serial = NULL,
+    struct scrcpy_cli_args args = {
-        .crop = NULL,
+        .opts = scrcpy_options_default,
-        .record_filename = NULL,
-        .window_title = NULL,
-        .push_target = NULL,
-        .record_format = 0,
         .help = false,
         .version = false,
-        .show_touches = false,
-        .port = DEFAULT_LOCAL_PORT,
-        .max_size = DEFAULT_MAX_SIZE,
-        .bit_rate = DEFAULT_BIT_RATE,
-        .always_on_top = false,
-        .no_control = false,
-        .no_display = false,
-        .turn_screen_off = false,
-        .render_expired_frames = false,
     };
-    if (!parse_args(&args, argc, argv)) {
+
+#ifndef NDEBUG
+    args.opts.log_level = SC_LOG_LEVEL_DEBUG;
+#endif
+
+    if (!scrcpy_parse_args(&args, argc, argv)) {
         return 1;
     }
 
+    sc_set_log_level(args.opts.log_level);
+
     if (args.help) {
-        usage(argv[0]);
+        scrcpy_print_usage(argv[0]);
         return 0;
     }
 
@@ -496,41 +79,19 @@ main(int argc, char *argv[]) {
     av_register_all();
 #endif
 
+#ifdef HAVE_V4L2
+    if (args.opts.v4l2_device) {
+        avdevice_register_all();
+    }
+#endif
+
     if (avformat_network_init()) {
         return 1;
     }
 
-#ifdef BUILD_DEBUG
+    int res = scrcpy(&args.opts) ? 0 : 1;
-    SDL_LogSetAllPriority(SDL_LOG_PRIORITY_DEBUG);
-#endif
-
-    struct scrcpy_options options = {
-        .serial = args.serial,
-        .crop = args.crop,
-        .port = args.port,
-        .record_filename = args.record_filename,
-        .window_title = args.window_title,
-        .push_target = args.push_target,
-        .record_format = args.record_format,
-        .max_size = args.max_size,
-        .bit_rate = args.bit_rate,
-        .show_touches = args.show_touches,
-        .fullscreen = args.fullscreen,
-        .always_on_top = args.always_on_top,
-        .control = !args.no_control,
-        .display = !args.no_display,
-        .turn_screen_off = args.turn_screen_off,
-        .render_expired_frames = args.render_expired_frames,
-    };
-    int res = scrcpy(&options) ? 0 : 1;
 
     avformat_network_deinit(); // ignore failure
 
-#if defined (__WINDOWS__) && ! defined (WINDOWS_NOCONSOLE)
-    if (res != 0) {
-        fprintf(stderr, "Press any key to continue...\n");
-        getchar();
-    }
-#endif
     return res;
 }

app/src/mouse_inject.c

@@ -0,0 +1,211 @@
+#include "mouse_inject.h"
+
+#include <assert.h>
+#include <SDL2/SDL_events.h>
+
+#include "android/input.h"
+#include "control_msg.h"
+#include "controller.h"
+#include "util/log.h"
+
+/** Downcast mouse processor to sc_mouse_inject */
+#define DOWNCAST(MP) container_of(MP, struct sc_mouse_inject, mouse_processor)
+
+static enum android_motionevent_buttons
+convert_mouse_buttons(uint32_t state) {
+    enum android_motionevent_buttons buttons = 0;
+    if (state & SDL_BUTTON_LMASK) {
+        buttons |= AMOTION_EVENT_BUTTON_PRIMARY;
+    }
+    if (state & SDL_BUTTON_RMASK) {
+        buttons |= AMOTION_EVENT_BUTTON_SECONDARY;
+    }
+    if (state & SDL_BUTTON_MMASK) {
+        buttons |= AMOTION_EVENT_BUTTON_TERTIARY;
+    }
+    if (state & SDL_BUTTON_X1MASK) {
+        buttons |= AMOTION_EVENT_BUTTON_BACK;
+    }
+    if (state & SDL_BUTTON_X2MASK) {
+        buttons |= AMOTION_EVENT_BUTTON_FORWARD;
+    }
+    return buttons;
+}
+
+#define MAP(FROM, TO) case FROM: *to = TO; return true
+#define FAIL default: return false
+static bool
+convert_mouse_action(SDL_EventType from, enum android_motionevent_action *to) {
+    switch (from) {
+        MAP(SDL_MOUSEBUTTONDOWN, AMOTION_EVENT_ACTION_DOWN);
+        MAP(SDL_MOUSEBUTTONUP,   AMOTION_EVENT_ACTION_UP);
+        FAIL;
+    }
+}
+
+static bool
+convert_touch_action(SDL_EventType from, enum android_motionevent_action *to) {
+    switch (from) {
+        MAP(SDL_FINGERMOTION, AMOTION_EVENT_ACTION_MOVE);
+        MAP(SDL_FINGERDOWN,   AMOTION_EVENT_ACTION_DOWN);
+        MAP(SDL_FINGERUP,     AMOTION_EVENT_ACTION_UP);
+        FAIL;
+    }
+}
+
+static bool
+convert_mouse_motion(const SDL_MouseMotionEvent *from, struct screen *screen,
+                     struct control_msg *to) {
+    to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
+    to->inject_touch_event.action = AMOTION_EVENT_ACTION_MOVE;
+    to->inject_touch_event.pointer_id = POINTER_ID_MOUSE;
+    to->inject_touch_event.position.screen_size = screen->frame_size;
+    to->inject_touch_event.position.point =
+        screen_convert_window_to_frame_coords(screen, from->x, from->y);
+    to->inject_touch_event.pressure = 1.f;
+    to->inject_touch_event.buttons = convert_mouse_buttons(from->state);
+
+    return true;
+}
+
+static bool
+convert_touch(const SDL_TouchFingerEvent *from, struct screen *screen,
+              struct control_msg *to) {
+    to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
+
+    if (!convert_touch_action(from->type, &to->inject_touch_event.action)) {
+        return false;
+    }
+
+    to->inject_touch_event.pointer_id = from->fingerId;
+    to->inject_touch_event.position.screen_size = screen->frame_size;
+
+    int dw;
+    int dh;
+    SDL_GL_GetDrawableSize(screen->window, &dw, &dh);
+
+    // SDL touch event coordinates are normalized in the range [0; 1]
+    int32_t x = from->x * dw;
+    int32_t y = from->y * dh;
+    to->inject_touch_event.position.point =
+        screen_convert_drawable_to_frame_coords(screen, x, y);
+
+    to->inject_touch_event.pressure = from->pressure;
+    to->inject_touch_event.buttons = 0;
+    return true;
+}
+
+static bool
+convert_mouse_button(const SDL_MouseButtonEvent *from, struct screen *screen,
+                     struct control_msg *to) {
+    to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
+
+    if (!convert_mouse_action(from->type, &to->inject_touch_event.action)) {
+        return false;
+    }
+
+    to->inject_touch_event.pointer_id = POINTER_ID_MOUSE;
+    to->inject_touch_event.position.screen_size = screen->frame_size;
+    to->inject_touch_event.position.point =
+        screen_convert_window_to_frame_coords(screen, from->x, from->y);
+    to->inject_touch_event.pressure =
+        from->type == SDL_MOUSEBUTTONDOWN ? 1.f : 0.f;
+    to->inject_touch_event.buttons =
+        convert_mouse_buttons(SDL_BUTTON(from->button));
+
+    return true;
+}
+
+static bool
+convert_mouse_wheel(const SDL_MouseWheelEvent *from, struct screen *screen,
+                    struct control_msg *to) {
+
+    // mouse_x and mouse_y are expressed in pixels relative to the window
+    int mouse_x;
+    int mouse_y;
+    SDL_GetMouseState(&mouse_x, &mouse_y);
+
+    struct sc_position position = {
+        .screen_size = screen->frame_size,
+        .point = screen_convert_window_to_frame_coords(screen,
+                                                       mouse_x, mouse_y),
+    };
+
+    to->type = CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT;
+
+    to->inject_scroll_event.position = position;
+    to->inject_scroll_event.hscroll = from->x;
+    to->inject_scroll_event.vscroll = from->y;
+
+    return true;
+}
+
+static void
+sc_mouse_processor_process_mouse_motion(struct sc_mouse_processor *mp,
+                                        const SDL_MouseMotionEvent *event) {
+    struct sc_mouse_inject *mi = DOWNCAST(mp);
+
+    struct control_msg msg;
+    if (!convert_mouse_motion(event, mi->screen, &msg)) {
+        return;
+    }
+
+    if (!controller_push_msg(mi->controller, &msg)) {
+        LOGW("Could not request 'inject mouse motion event'");
+    }
+}
+
+static void
+sc_mouse_processor_process_touch(struct sc_mouse_processor *mp,
+                                 const SDL_TouchFingerEvent *event) {
+    struct sc_mouse_inject *mi = DOWNCAST(mp);
+
+    struct control_msg msg;
+    if (convert_touch(event, mi->screen, &msg)) {
+        if (!controller_push_msg(mi->controller, &msg)) {
+            LOGW("Could not request 'inject touch event'");
+        }
+    }
+}
+
+static void
+sc_mouse_processor_process_mouse_button(struct sc_mouse_processor *mp,
+                                        const SDL_MouseButtonEvent *event) {
+    struct sc_mouse_inject *mi = DOWNCAST(mp);
+
+    struct control_msg msg;
+    if (convert_mouse_button(event, mi->screen, &msg)) {
+        if (!controller_push_msg(mi->controller, &msg)) {
+            LOGW("Could not request 'inject mouse button event'");
+        }
+    }
+}
+
+static void
+sc_mouse_processor_process_mouse_wheel(struct sc_mouse_processor *mp,
+                                       const SDL_MouseWheelEvent *event) {
+    struct sc_mouse_inject *mi = DOWNCAST(mp);
+
+    struct control_msg msg;
+    if (convert_mouse_wheel(event, mi->screen, &msg)) {
+        if (!controller_push_msg(mi->controller, &msg)) {
+            LOGW("Could not request 'inject mouse wheel event'");
+        }
+    }
+}
+
+void
+sc_mouse_inject_init(struct sc_mouse_inject *mi, struct controller *controller,
+                     struct screen *screen) {
+    mi->controller = controller;
+    mi->screen = screen;
+
+    static const struct sc_mouse_processor_ops ops = {
+        .process_mouse_motion = sc_mouse_processor_process_mouse_motion,
+        .process_touch = sc_mouse_processor_process_touch,
+        .process_mouse_button = sc_mouse_processor_process_mouse_button,
+        .process_mouse_wheel = sc_mouse_processor_process_mouse_wheel,
+    };
+
+    mi->mouse_processor.ops = &ops;
+}

app/src/mouse_inject.h

@@ -0,0 +1,23 @@
+#ifndef SC_MOUSE_INJECT_H
+#define SC_MOUSE_INJECT_H
+
+#include "common.h"
+
+#include <stdbool.h>
+
+#include "controller.h"
+#include "screen.h"
+#include "trait/mouse_processor.h"
+
+struct sc_mouse_inject {
+    struct sc_mouse_processor mouse_processor; // mouse processor trait
+
+    struct controller *controller;
+    struct screen *screen;
+};
+
+void
+sc_mouse_inject_init(struct sc_mouse_inject *mi, struct controller *controller,
+                     struct screen *screen);
+
+#endif

app/src/net.c

@@ -1,116 +0,0 @@
-#include "net.h"
-
-#include <stdio.h>
-
-#include "log.h"
-
-#ifdef __WINDOWS__
-  typedef int socklen_t;
-#else
-# include <sys/types.h>
-# include <sys/socket.h>
-# include <netinet/in.h>
-# include <arpa/inet.h>
-# include <unistd.h>
-# define SOCKET_ERROR -1
-  typedef struct sockaddr_in SOCKADDR_IN;
-  typedef struct sockaddr SOCKADDR;
-  typedef struct in_addr IN_ADDR;
-#endif
-
-socket_t
-net_connect(uint32_t addr, uint16_t port) {
-    socket_t sock = socket(AF_INET, SOCK_STREAM, 0);
-    if (sock == INVALID_SOCKET) {
-        perror("socket");
-        return INVALID_SOCKET;
-    }
-
-    SOCKADDR_IN sin;
-    sin.sin_family = AF_INET;
-    sin.sin_addr.s_addr = htonl(addr);
-    sin.sin_port = htons(port);
-
-    if (connect(sock, (SOCKADDR *) &sin, sizeof(sin)) == SOCKET_ERROR) {
-        perror("connect");
-        net_close(sock);
-        return INVALID_SOCKET;
-    }
-
-    return sock;
-}
-
-socket_t
-net_listen(uint32_t addr, uint16_t port, int backlog) {
-    socket_t sock = socket(AF_INET, SOCK_STREAM, 0);
-    if (sock == INVALID_SOCKET) {
-        perror("socket");
-        return INVALID_SOCKET;
-    }
-
-    int reuse = 1;
-    if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const void *) &reuse,
-                   sizeof(reuse)) == -1) {
-        perror("setsockopt(SO_REUSEADDR)");
-    }
-
-    SOCKADDR_IN sin;
-    sin.sin_family = AF_INET;
-    sin.sin_addr.s_addr = htonl(addr); // htonl() harmless on INADDR_ANY
-    sin.sin_port = htons(port);
-
-    if (bind(sock, (SOCKADDR *) &sin, sizeof(sin)) == SOCKET_ERROR) {
-        perror("bind");
-        net_close(sock);
-        return INVALID_SOCKET;
-    }
-
-    if (listen(sock, backlog) == SOCKET_ERROR) {
-        perror("listen");
-        net_close(sock);
-        return INVALID_SOCKET;
-    }
-
-    return sock;
-}
-
-socket_t
-net_accept(socket_t server_socket) {
-    SOCKADDR_IN csin;
-    socklen_t sinsize = sizeof(csin);
-    return accept(server_socket, (SOCKADDR *) &csin, &sinsize);
-}
-
-ssize_t
-net_recv(socket_t socket, void *buf, size_t len) {
-    return recv(socket, buf, len, 0);
-}
-
-ssize_t
-net_recv_all(socket_t socket, void *buf, size_t len) {
-    return recv(socket, buf, len, MSG_WAITALL);
-}
-
-ssize_t
-net_send(socket_t socket, const void *buf, size_t len) {
-    return send(socket, buf, len, 0);
-}
-
-ssize_t
-net_send_all(socket_t socket, const void *buf, size_t len) {
-    ssize_t w = 0;
-    while (len > 0) {
-        w = send(socket, buf, len, 0);
-        if (w == -1) {
-            return -1;
-        }
-        len -= w;
-        buf = (char *) buf + w;
-    }
-    return w;
-}
-
-bool
-net_shutdown(socket_t socket, int how) {
-    return !shutdown(socket, how);
-}

app/src/net.h

@@ -1,55 +0,0 @@
-#ifndef NET_H
-#define NET_H
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <SDL2/SDL_platform.h>
-
-#ifdef __WINDOWS__
-# include <winsock2.h>
-  #define SHUT_RD SD_RECEIVE
-  #define SHUT_WR SD_SEND
-  #define SHUT_RDWR SD_BOTH
-  typedef SOCKET socket_t;
-#else
-# include <sys/socket.h>
-# define INVALID_SOCKET -1
-  typedef int socket_t;
-#endif
-
-bool
-net_init(void);
-
-void
-net_cleanup(void);
-
-socket_t
-net_connect(uint32_t addr, uint16_t port);
-
-socket_t
-net_listen(uint32_t addr, uint16_t port, int backlog);
-
-socket_t
-net_accept(socket_t server_socket);
-
-// the _all versions wait/retry until len bytes have been written/read
-ssize_t
-net_recv(socket_t socket, void *buf, size_t len);
-
-ssize_t
-net_recv_all(socket_t socket, void *buf, size_t len);
-
-ssize_t
-net_send(socket_t socket, const void *buf, size_t len);
-
-ssize_t
-net_send_all(socket_t socket, const void *buf, size_t len);
-
-// how is SHUT_RD (read), SHUT_WR (write) or SHUT_RDWR (both)
-bool
-net_shutdown(socket_t socket, int how);
-
-bool
-net_close(socket_t socket);
-
-#endif

app/src/opengl.c

@@ -0,0 +1,56 @@
+#include "opengl.h"
+
+#include <assert.h>
+#include <stdio.h>
+#include "SDL2/SDL.h"
+
+void
+sc_opengl_init(struct sc_opengl *gl) {
+    gl->GetString = SDL_GL_GetProcAddress("glGetString");
+    assert(gl->GetString);
+
+    gl->TexParameterf = SDL_GL_GetProcAddress("glTexParameterf");
+    assert(gl->TexParameterf);
+
+    gl->TexParameteri = SDL_GL_GetProcAddress("glTexParameteri");
+    assert(gl->TexParameteri);
+
+    // optional
+    gl->GenerateMipmap = SDL_GL_GetProcAddress("glGenerateMipmap");
+
+    const char *version = (const char *) gl->GetString(GL_VERSION);
+    assert(version);
+    gl->version = version;
+
+#define OPENGL_ES_PREFIX "OpenGL ES "
+    /* starts with "OpenGL ES " */
+    gl->is_opengles = !strncmp(gl->version, OPENGL_ES_PREFIX,
+                               sizeof(OPENGL_ES_PREFIX) - 1);
+    if (gl->is_opengles) {
+        /* skip the prefix */
+        version += sizeof(PREFIX) - 1;
+    }
+
+    int r = sscanf(version, "%d.%d", &gl->version_major, &gl->version_minor);
+    if (r != 2) {
+        // failed to parse the version
+        gl->version_major = 0;
+        gl->version_minor = 0;
+    }
+}
+
+bool
+sc_opengl_version_at_least(struct sc_opengl *gl,
+                           int minver_major, int minver_minor,
+                           int minver_es_major, int minver_es_minor)
+{
+    if (gl->is_opengles) {
+        return gl->version_major > minver_es_major
+            || (gl->version_major == minver_es_major
+             && gl->version_minor >= minver_es_minor);
+    }
+
+    return gl->version_major > minver_major
+        || (gl->version_major == minver_major
+         && gl->version_minor >= minver_minor);
+}

app/src/opengl.h

@@ -0,0 +1,36 @@
+#ifndef SC_OPENGL_H
+#define SC_OPENGL_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <SDL2/SDL_opengl.h>
+
+struct sc_opengl {
+    const char *version;
+    bool is_opengles;
+    int version_major;
+    int version_minor;
+
+    const GLubyte *
+    (*GetString)(GLenum name);
+
+    void
+    (*TexParameterf)(GLenum target, GLenum pname, GLfloat param);
+
+    void
+    (*TexParameteri)(GLenum target, GLenum pname, GLint param);
+
+    void
+    (*GenerateMipmap)(GLenum target);
+};
+
+void
+sc_opengl_init(struct sc_opengl *gl);
+
+bool
+sc_opengl_version_at_least(struct sc_opengl *gl,
+                           int minver_major, int minver_minor,
+                           int minver_es_major, int minver_es_minor);
+
+#endif

app/src/options.c

@@ -0,0 +1,54 @@
+#include "options.h"
+
+const struct scrcpy_options scrcpy_options_default = {
+    .serial = NULL,
+    .crop = NULL,
+    .record_filename = NULL,
+    .window_title = NULL,
+    .push_target = NULL,
+    .render_driver = NULL,
+    .codec_options = NULL,
+    .encoder_name = NULL,
+#ifdef HAVE_V4L2
+    .v4l2_device = NULL,
+#endif
+    .log_level = SC_LOG_LEVEL_INFO,
+    .record_format = SC_RECORD_FORMAT_AUTO,
+    .keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_INJECT,
+    .port_range = {
+        .first = DEFAULT_LOCAL_PORT_RANGE_FIRST,
+        .last = DEFAULT_LOCAL_PORT_RANGE_LAST,
+    },
+    .shortcut_mods = {
+        .data = {SC_MOD_LALT, SC_MOD_LSUPER},
+        .count = 2,
+    },
+    .max_size = 0,
+    .bit_rate = DEFAULT_BIT_RATE,
+    .max_fps = 0,
+    .lock_video_orientation = SC_LOCK_VIDEO_ORIENTATION_UNLOCKED,
+    .rotation = 0,
+    .window_x = SC_WINDOW_POSITION_UNDEFINED,
+    .window_y = SC_WINDOW_POSITION_UNDEFINED,
+    .window_width = 0,
+    .window_height = 0,
+    .display_id = 0,
+    .display_buffer = 0,
+    .v4l2_buffer = 0,
+    .show_touches = false,
+    .fullscreen = false,
+    .always_on_top = false,
+    .control = true,
+    .display = true,
+    .turn_screen_off = false,
+    .prefer_text = false,
+    .window_borderless = false,
+    .mipmaps = true,
+    .stay_awake = false,
+    .force_adb_forward = false,
+    .disable_screensaver = false,
+    .forward_key_repeat = true,
+    .forward_all_clicks = false,
+    .legacy_paste = false,
+    .power_off_on_close = false,
+};

app/src/options.h

@@ -0,0 +1,113 @@
+#ifndef SCRCPY_OPTIONS_H
+#define SCRCPY_OPTIONS_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include "util/tick.h"
+
+enum sc_log_level {
+    SC_LOG_LEVEL_VERBOSE,
+    SC_LOG_LEVEL_DEBUG,
+    SC_LOG_LEVEL_INFO,
+    SC_LOG_LEVEL_WARN,
+    SC_LOG_LEVEL_ERROR,
+};
+
+enum sc_record_format {
+    SC_RECORD_FORMAT_AUTO,
+    SC_RECORD_FORMAT_MP4,
+    SC_RECORD_FORMAT_MKV,
+};
+
+enum sc_lock_video_orientation {
+    SC_LOCK_VIDEO_ORIENTATION_UNLOCKED = -1,
+    // lock the current orientation when scrcpy starts
+    SC_LOCK_VIDEO_ORIENTATION_INITIAL = -2,
+    SC_LOCK_VIDEO_ORIENTATION_0 = 0,
+    SC_LOCK_VIDEO_ORIENTATION_1,
+    SC_LOCK_VIDEO_ORIENTATION_2,
+    SC_LOCK_VIDEO_ORIENTATION_3,
+};
+
+enum sc_keyboard_input_mode {
+    SC_KEYBOARD_INPUT_MODE_INJECT,
+    SC_KEYBOARD_INPUT_MODE_HID,
+};
+
+#define SC_MAX_SHORTCUT_MODS 8
+
+enum sc_shortcut_mod {
+    SC_MOD_LCTRL = 1 << 0,
+    SC_MOD_RCTRL = 1 << 1,
+    SC_MOD_LALT = 1 << 2,
+    SC_MOD_RALT = 1 << 3,
+    SC_MOD_LSUPER = 1 << 4,
+    SC_MOD_RSUPER = 1 << 5,
+};
+
+struct sc_shortcut_mods {
+    unsigned data[SC_MAX_SHORTCUT_MODS];
+    unsigned count;
+};
+
+struct sc_port_range {
+    uint16_t first;
+    uint16_t last;
+};
+
+#define SC_WINDOW_POSITION_UNDEFINED (-0x8000)
+
+struct scrcpy_options {
+    const char *serial;
+    const char *crop;
+    const char *record_filename;
+    const char *window_title;
+    const char *push_target;
+    const char *render_driver;
+    const char *codec_options;
+    const char *encoder_name;
+#ifdef HAVE_V4L2
+    const char *v4l2_device;
+#endif
+    enum sc_log_level log_level;
+    enum sc_record_format record_format;
+    enum sc_keyboard_input_mode keyboard_input_mode;
+    struct sc_port_range port_range;
+    struct sc_shortcut_mods shortcut_mods;
+    uint16_t max_size;
+    uint32_t bit_rate;
+    uint16_t max_fps;
+    enum sc_lock_video_orientation lock_video_orientation;
+    uint8_t rotation;
+    int16_t window_x; // SC_WINDOW_POSITION_UNDEFINED for "auto"
+    int16_t window_y; // SC_WINDOW_POSITION_UNDEFINED for "auto"
+    uint16_t window_width;
+    uint16_t window_height;
+    uint32_t display_id;
+    sc_tick display_buffer;
+    sc_tick v4l2_buffer;
+    bool show_touches;
+    bool fullscreen;
+    bool always_on_top;
+    bool control;
+    bool display;
+    bool turn_screen_off;
+    bool prefer_text;
+    bool window_borderless;
+    bool mipmaps;
+    bool stay_awake;
+    bool force_adb_forward;
+    bool disable_screensaver;
+    bool forward_key_repeat;
+    bool forward_all_clicks;
+    bool legacy_paste;
+    bool power_off_on_close;
+};
+
+extern const struct scrcpy_options scrcpy_options_default;
+
+#endif

app/src/receiver.c

@@ -1,16 +1,15 @@
 #include "receiver.h"
 
-#include <SDL2/SDL_assert.h>
+#include <assert.h>
 #include <SDL2/SDL_clipboard.h>
 
-#include "config.h"
 #include "device_msg.h"
-#include "lock_util.h"
+#include "util/log.h"
-#include "log.h"
 
 bool
-receiver_init(struct receiver *receiver, socket_t control_socket) {
+receiver_init(struct receiver *receiver, sc_socket control_socket) {
-    if (!(receiver->mutex = SDL_CreateMutex())) {
+    bool ok = sc_mutex_init(&receiver->mutex);
+    if (!ok) {
         return false;
     }
     receiver->control_socket = control_socket;
@@ -19,21 +18,30 @@ receiver_init(struct receiver *receiver, socket_t control_socket) {
 
 void
 receiver_destroy(struct receiver *receiver) {
-    SDL_DestroyMutex(receiver->mutex);
+    sc_mutex_destroy(&receiver->mutex);
 }
 
 static void
-process_msg(struct receiver *receiver, struct device_msg *msg) {
+process_msg(struct device_msg *msg) {
     switch (msg->type) {
-        case DEVICE_MSG_TYPE_CLIPBOARD:
+        case DEVICE_MSG_TYPE_CLIPBOARD: {
+            char *current = SDL_GetClipboardText();
+            bool same = current && !strcmp(current, msg->clipboard.text);
+            SDL_free(current);
+            if (same) {
+                LOGD("Computer clipboard unchanged");
+                return;
+            }
+
             LOGI("Device clipboard copied");
             SDL_SetClipboardText(msg->clipboard.text);
             break;
+        }
     }
 }
 
 static ssize_t
-process_msgs(struct receiver *receiver, const unsigned char *buf, size_t len) {
+process_msgs(const unsigned char *buf, size_t len) {
     size_t head = 0;
     for (;;) {
         struct device_msg msg;
@@ -45,11 +53,11 @@ process_msgs(struct receiver *receiver, const unsigned char *buf, size_t len) {
             return head;
         }
 
-        process_msg(receiver, &msg);
+        process_msg(&msg);
         device_msg_destroy(&msg);
 
         head += r;
-        SDL_assert(head <= len);
+        assert(head <= len);
         if (head == len) {
             return head;
         }
@@ -60,28 +68,29 @@ static int
 run_receiver(void *data) {
     struct receiver *receiver = data;
 
-    unsigned char buf[DEVICE_MSG_SERIALIZED_MAX_SIZE];
+    static unsigned char buf[DEVICE_MSG_MAX_SIZE];
     size_t head = 0;
 
     for (;;) {
-        SDL_assert(head < DEVICE_MSG_SERIALIZED_MAX_SIZE);
+        assert(head < DEVICE_MSG_MAX_SIZE);
-        ssize_t r = net_recv(receiver->control_socket, buf,
+        ssize_t r = net_recv(receiver->control_socket, buf + head,
-                             DEVICE_MSG_SERIALIZED_MAX_SIZE - head);
+                             DEVICE_MSG_MAX_SIZE - head);
         if (r <= 0) {
             LOGD("Receiver stopped");
             break;
         }
 
-        ssize_t consumed = process_msgs(receiver, buf, r);
+        head += r;
+        ssize_t consumed = process_msgs(buf, head);
         if (consumed == -1) {
             // an error occurred
             break;
         }
 
         if (consumed) {
+            head -= consumed;
             // shift the remaining data in the buffer
-            memmove(buf, &buf[consumed], r - consumed);
+            memmove(buf, &buf[consumed], head);
-            head = r - consumed;
         }
     }
 
@@ -92,8 +101,9 @@ bool
 receiver_start(struct receiver *receiver) {
     LOGD("Starting receiver thread");
 
-    receiver->thread = SDL_CreateThread(run_receiver, "receiver", receiver);
+    bool ok = sc_thread_create(&receiver->thread, run_receiver, "receiver",
-    if (!receiver->thread) {
+                               receiver);
+    if (!ok) {
         LOGC("Could not start receiver thread");
         return false;
     }
@@ -103,5 +113,5 @@ receiver_start(struct receiver *receiver) {
 
 void
 receiver_join(struct receiver *receiver) {
-    SDL_WaitThread(receiver->thread, NULL);
+    sc_thread_join(&receiver->thread, NULL);
 }

app/src/receiver.h

@@ -1,22 +1,23 @@
 #ifndef RECEIVER_H
 #define RECEIVER_H
 
-#include <stdbool.h>
+#include "common.h"
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
 
-#include "net.h"
+#include <stdbool.h>
+
+#include "util/net.h"
+#include "util/thread.h"
 
 // receive events from the device
 // managed by the controller
 struct receiver {
-    socket_t control_socket;
+    sc_socket control_socket;
-    SDL_Thread *thread;
+    sc_thread thread;
-    SDL_mutex *mutex;
+    sc_mutex mutex;
 };
 
 bool
-receiver_init(struct receiver *receiver, socket_t control_socket);
+receiver_init(struct receiver *receiver, sc_socket control_socket);
 
 void
 receiver_destroy(struct receiver *receiver);

app/src/recorder.c

@@ -1,12 +1,15 @@
 #include "recorder.h"
 
+#include <assert.h>
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
 #include <libavutil/time.h>
-#include <SDL2/SDL_assert.h>
 
-#include "compat.h"
+#include "util/log.h"
-#include "config.h"
+#include "util/str_util.h"
-#include "lock_util.h"
+
-#include "log.h"
+/** Downcast packet_sink to recorder */
+#define DOWNCAST(SINK) container_of(SINK, struct recorder, packet_sink)
 
 static const AVRational SCRCPY_TIME_BASE = {1, 1000000}; // timestamps in us
 
@@ -22,213 +25,56 @@ find_muxer(const char *name) {
 #else
         oformat = av_oformat_next(oformat);
 #endif
-        // until null or with name "mp4"
+        // until null or containing the requested name
-    } while (oformat && strcmp(oformat->name, name));
+    } while (oformat && !strlist_contains(oformat->name, ',', name));
     return oformat;
 }
 
 static struct record_packet *
 record_packet_new(const AVPacket *packet) {
-    struct record_packet *rec = SDL_malloc(sizeof(*rec));
+    struct record_packet *rec = malloc(sizeof(*rec));
     if (!rec) {
         return NULL;
     }
-    if (av_packet_ref(&rec->packet, packet)) {
+
-        SDL_free(rec);
+    rec->packet = av_packet_alloc();
+    if (!rec->packet) {
+        free(rec);
+        return NULL;
+    }
+
+    if (av_packet_ref(rec->packet, packet)) {
+        av_packet_free(&rec->packet);
+        free(rec);
         return NULL;
     }
-    rec->next = NULL;
     return rec;
 }
 
 static void
 record_packet_delete(struct record_packet *rec) {
-    av_packet_unref(&rec->packet);
+    av_packet_free(&rec->packet);
-    SDL_free(rec);
+    free(rec);
-}
-
-static void
-recorder_queue_init(struct recorder_queue *queue) {
-    queue->first = NULL;
-    // queue->last is undefined if queue->first == NULL
-}
-
-static inline bool
-recorder_queue_is_empty(struct recorder_queue *queue) {
-    return !queue->first;
-}
-
-static bool
-recorder_queue_push(struct recorder_queue *queue, const AVPacket *packet) {
-    struct record_packet *rec = record_packet_new(packet);
-    if (!rec) {
-        LOGC("Could not allocate record packet");
-        return false;
-    }
-    rec->next = NULL;
-
-    if (recorder_queue_is_empty(queue)) {
-        queue->first = queue->last = rec;
-    } else {
-        // chain rec after the (current) last packet
-        queue->last->next = rec;
-        // the last packet is now rec
-        queue->last = rec;
-    }
-    return true;
-}
-
-static inline struct record_packet *
-recorder_queue_take(struct recorder_queue *queue) {
-    SDL_assert(!recorder_queue_is_empty(queue));
-
-    struct record_packet *rec = queue->first;
-    SDL_assert(rec);
-
-    queue->first = rec->next;
-    // no need to update queue->last if the queue is left empty:
-    // queue->last is undefined if queue->first == NULL
-
-    return rec;
 }
 
 static void
 recorder_queue_clear(struct recorder_queue *queue) {
-    struct record_packet *rec = queue->first;
+    while (!sc_queue_is_empty(queue)) {
-    while (rec) {
+        struct record_packet *rec;
-        struct record_packet *current = rec;
+        sc_queue_take(queue, next, &rec);
-        rec = rec->next;
+        record_packet_delete(rec);
-        record_packet_delete(current);
     }
-    queue->first = NULL;
-}
-
-bool
-recorder_init(struct recorder *recorder,
-              const char *filename,
-              enum recorder_format format,
-              struct size declared_frame_size) {
-    recorder->filename = SDL_strdup(filename);
-    if (!recorder->filename) {
-        LOGE("Could not strdup filename");
-        return false;
-    }
-
-    recorder->mutex = SDL_CreateMutex();
-    if (!recorder->mutex) {
-        LOGC("Could not create mutex");
-        SDL_free(recorder->filename);
-        return false;
-    }
-
-    recorder->queue_cond = SDL_CreateCond();
-    if (!recorder->queue_cond) {
-        LOGC("Could not create cond");
-        SDL_DestroyMutex(recorder->mutex);
-        SDL_free(recorder->filename);
-        return false;
-    }
-
-    recorder_queue_init(&recorder->queue);
-    recorder->stopped = false;
-    recorder->failed = false;
-    recorder->format = format;
-    recorder->declared_frame_size = declared_frame_size;
-    recorder->header_written = false;
-
-    return true;
-}
-
-void
-recorder_destroy(struct recorder *recorder) {
-    SDL_DestroyCond(recorder->queue_cond);
-    SDL_DestroyMutex(recorder->mutex);
-    SDL_free(recorder->filename);
 }
 
 static const char *
-recorder_get_format_name(enum recorder_format format) {
+recorder_get_format_name(enum sc_record_format format) {
     switch (format) {
-        case RECORDER_FORMAT_MP4: return "mp4";
+        case SC_RECORD_FORMAT_MP4: return "mp4";
-        case RECORDER_FORMAT_MKV: return "matroska";
+        case SC_RECORD_FORMAT_MKV: return "matroska";
         default: return NULL;
     }
 }
 
-bool
-recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
-    const char *format_name = recorder_get_format_name(recorder->format);
-    SDL_assert(format_name);
-    const AVOutputFormat *format = find_muxer(format_name);
-    if (!format) {
-        LOGE("Could not find muxer");
-        return false;
-    }
-
-    recorder->ctx = avformat_alloc_context();
-    if (!recorder->ctx) {
-        LOGE("Could not allocate output context");
-        return false;
-    }
-
-    // contrary to the deprecated API (av_oformat_next()), av_muxer_iterate()
-    // returns (on purpose) a pointer-to-const, but AVFormatContext.oformat
-    // still expects a pointer-to-non-const (it has not be updated accordingly)
-    // <https://github.com/FFmpeg/FFmpeg/commit/0694d8702421e7aff1340038559c438b61bb30dd>
-    recorder->ctx->oformat = (AVOutputFormat *) format;
-
-    AVStream *ostream = avformat_new_stream(recorder->ctx, input_codec);
-    if (!ostream) {
-        avformat_free_context(recorder->ctx);
-        return false;
-    }
-
-#ifdef SCRCPY_LAVF_HAS_NEW_CODEC_PARAMS_API
-    ostream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
-    ostream->codecpar->codec_id = input_codec->id;
-    ostream->codecpar->format = AV_PIX_FMT_YUV420P;
-    ostream->codecpar->width = recorder->declared_frame_size.width;
-    ostream->codecpar->height = recorder->declared_frame_size.height;
-#else
-    ostream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
-    ostream->codec->codec_id = input_codec->id;
-    ostream->codec->pix_fmt = AV_PIX_FMT_YUV420P;
-    ostream->codec->width = recorder->declared_frame_size.width;
-    ostream->codec->height = recorder->declared_frame_size.height;
-#endif
-
-    int ret = avio_open(&recorder->ctx->pb, recorder->filename,
-                        AVIO_FLAG_WRITE);
-    if (ret < 0) {
-        LOGE("Failed to open output file: %s", recorder->filename);
-        // ostream will be cleaned up during context cleaning
-        avformat_free_context(recorder->ctx);
-        return false;
-    }
-
-    LOGI("Recording started to %s file: %s", format_name, recorder->filename);
-
-    return true;
-}
-
-void
-recorder_close(struct recorder *recorder) {
-    int ret = av_write_trailer(recorder->ctx);
-    if (ret < 0) {
-        LOGE("Failed to write trailer to %s", recorder->filename);
-        recorder->failed = true;
-    }
-    avio_close(recorder->ctx->pb);
-    avformat_free_context(recorder->ctx);
-
-    if (recorder->failed) {
-        LOGE("Recording failed to %s", recorder->filename);
-    } else {
-        const char *format_name = recorder_get_format_name(recorder->format);
-        LOGI("Recording complete to %s file: %s", format_name, recorder->filename);
-    }
-}
-
 static bool
 recorder_write_header(struct recorder *recorder, const AVPacket *packet) {
     AVStream *ostream = recorder->ctx->streams[0];
@@ -242,13 +88,8 @@ recorder_write_header(struct recorder *recorder, const AVPacket *packet) {
     // copy the first packet to the extra data
     memcpy(extradata, packet->data, packet->size);
 
-#ifdef SCRCPY_LAVF_HAS_NEW_CODEC_PARAMS_API
     ostream->codecpar->extradata = extradata;
     ostream->codecpar->extradata_size = packet->size;
-#else
-    ostream->codec->extradata = extradata;
-    ostream->codec->extradata_size = packet->size;
-#endif
 
     int ret = avformat_write_header(recorder->ctx, NULL);
     if (ret < 0) {
@@ -265,7 +106,7 @@ recorder_rescale_packet(struct recorder *recorder, AVPacket *packet) {
     av_packet_rescale_ts(packet, SCRCPY_TIME_BASE, ostream->time_base);
 }
 
-bool
+static bool
 recorder_write(struct recorder *recorder, AVPacket *packet) {
     if (!recorder->header_written) {
         if (packet->pts != AV_NOPTS_VALUE) {
@@ -294,38 +135,88 @@ run_recorder(void *data) {
     struct recorder *recorder = data;
 
     for (;;) {
-        mutex_lock(recorder->mutex);
+        sc_mutex_lock(&recorder->mutex);
 
-        while (!recorder->stopped &&
+        while (!recorder->stopped && sc_queue_is_empty(&recorder->queue)) {
-                recorder_queue_is_empty(&recorder->queue)) {
+            sc_cond_wait(&recorder->queue_cond, &recorder->mutex);
-            cond_wait(recorder->queue_cond, recorder->mutex);
         }
 
         // if stopped is set, continue to process the remaining events (to
         // finish the recording) before actually stopping
 
-        if (recorder->stopped && recorder_queue_is_empty(&recorder->queue)) {
+        if (recorder->stopped && sc_queue_is_empty(&recorder->queue)) {
-            mutex_unlock(recorder->mutex);
+            sc_mutex_unlock(&recorder->mutex);
+            struct record_packet *last = recorder->previous;
+            if (last) {
+                // assign an arbitrary duration to the last packet
+                last->packet->duration = 100000;
+                bool ok = recorder_write(recorder, last->packet);
+                if (!ok) {
+                    // failing to write the last frame is not very serious, no
+                    // future frame may depend on it, so the resulting file
+                    // will still be valid
+                    LOGW("Could not record last packet");
+                }
+                record_packet_delete(last);
+            }
             break;
         }
 
-        struct record_packet *rec = recorder_queue_take(&recorder->queue);
+        struct record_packet *rec;
+        sc_queue_take(&recorder->queue, next, &rec);
 
-        mutex_unlock(recorder->mutex);
+        sc_mutex_unlock(&recorder->mutex);
 
-        bool ok = recorder_write(recorder, &rec->packet);
+        // recorder->previous is only written from this thread, no need to lock
-        record_packet_delete(rec);
+        struct record_packet *previous = recorder->previous;
+        recorder->previous = rec;
+
+        if (!previous) {
+            // we just received the first packet
+            continue;
+        }
+
+        // config packets have no PTS, we must ignore them
+        if (rec->packet->pts != AV_NOPTS_VALUE
+            && previous->packet->pts != AV_NOPTS_VALUE) {
+            // we now know the duration of the previous packet
+            previous->packet->duration =
+                rec->packet->pts - previous->packet->pts;
+        }
+
+        bool ok = recorder_write(recorder, previous->packet);
+        record_packet_delete(previous);
         if (!ok) {
             LOGE("Could not record packet");
 
-            mutex_lock(recorder->mutex);
+            sc_mutex_lock(&recorder->mutex);
             recorder->failed = true;
             // discard pending packets
             recorder_queue_clear(&recorder->queue);
-            mutex_unlock(recorder->mutex);
+            sc_mutex_unlock(&recorder->mutex);
             break;
         }
+    }
 
+    if (!recorder->failed) {
+        if (recorder->header_written) {
+            int ret = av_write_trailer(recorder->ctx);
+            if (ret < 0) {
+                LOGE("Failed to write trailer to %s", recorder->filename);
+                recorder->failed = true;
+            }
+        } else {
+            // the recorded file is empty
+            recorder->failed = true;
+        }
+    }
+
+    if (recorder->failed) {
+        LOGE("Recording failed to %s", recorder->filename);
+    } else {
+        const char *format_name = recorder_get_format_name(recorder->format);
+        LOGI("Recording complete to %s file: %s", format_name,
+                                                  recorder->filename);
     }
 
     LOGD("Recorder thread ended");
@@ -333,45 +224,176 @@ run_recorder(void *data) {
     return 0;
 }
 
-bool
+static bool
-recorder_start(struct recorder *recorder) {
+recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
-    LOGD("Starting recorder thread");
+    bool ok = sc_mutex_init(&recorder->mutex);
-
+    if (!ok) {
-    recorder->thread = SDL_CreateThread(run_recorder, "recorder", recorder);
+        LOGC("Could not create mutex");
-    if (!recorder->thread) {
-        LOGC("Could not start recorder thread");
         return false;
     }
 
+    ok = sc_cond_init(&recorder->queue_cond);
+    if (!ok) {
+        LOGC("Could not create cond");
+        goto error_mutex_destroy;
+    }
+
+    sc_queue_init(&recorder->queue);
+    recorder->stopped = false;
+    recorder->failed = false;
+    recorder->header_written = false;
+    recorder->previous = NULL;
+
+    const char *format_name = recorder_get_format_name(recorder->format);
+    assert(format_name);
+    const AVOutputFormat *format = find_muxer(format_name);
+    if (!format) {
+        LOGE("Could not find muxer");
+        goto error_cond_destroy;
+    }
+
+    recorder->ctx = avformat_alloc_context();
+    if (!recorder->ctx) {
+        LOGE("Could not allocate output context");
+        goto error_cond_destroy;
+    }
+
+    // contrary to the deprecated API (av_oformat_next()), av_muxer_iterate()
+    // returns (on purpose) a pointer-to-const, but AVFormatContext.oformat
+    // still expects a pointer-to-non-const (it has not be updated accordingly)
+    // <https://github.com/FFmpeg/FFmpeg/commit/0694d8702421e7aff1340038559c438b61bb30dd>
+    recorder->ctx->oformat = (AVOutputFormat *) format;
+
+    av_dict_set(&recorder->ctx->metadata, "comment",
+                "Recorded by scrcpy " SCRCPY_VERSION, 0);
+
+    AVStream *ostream = avformat_new_stream(recorder->ctx, input_codec);
+    if (!ostream) {
+        goto error_avformat_free_context;
+    }
+
+    ostream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
+    ostream->codecpar->codec_id = input_codec->id;
+    ostream->codecpar->format = AV_PIX_FMT_YUV420P;
+    ostream->codecpar->width = recorder->declared_frame_size.width;
+    ostream->codecpar->height = recorder->declared_frame_size.height;
+
+    int ret = avio_open(&recorder->ctx->pb, recorder->filename,
+                        AVIO_FLAG_WRITE);
+    if (ret < 0) {
+        LOGE("Failed to open output file: %s", recorder->filename);
+        // ostream will be cleaned up during context cleaning
+        goto error_avformat_free_context;
+    }
+
+    LOGD("Starting recorder thread");
+    ok = sc_thread_create(&recorder->thread, run_recorder, "recorder",
+                               recorder);
+    if (!ok) {
+        LOGC("Could not start recorder thread");
+        goto error_avio_close;
+    }
+
+    LOGI("Recording started to %s file: %s", format_name, recorder->filename);
+
+    return true;
+
+error_avio_close:
+    avio_close(recorder->ctx->pb);
+error_avformat_free_context:
+    avformat_free_context(recorder->ctx);
+error_cond_destroy:
+    sc_cond_destroy(&recorder->queue_cond);
+error_mutex_destroy:
+    sc_mutex_destroy(&recorder->mutex);
+
+    return false;
+}
+
+static void
+recorder_close(struct recorder *recorder) {
+    sc_mutex_lock(&recorder->mutex);
+    recorder->stopped = true;
+    sc_cond_signal(&recorder->queue_cond);
+    sc_mutex_unlock(&recorder->mutex);
+
+    sc_thread_join(&recorder->thread, NULL);
+
+    avio_close(recorder->ctx->pb);
+    avformat_free_context(recorder->ctx);
+    sc_cond_destroy(&recorder->queue_cond);
+    sc_mutex_destroy(&recorder->mutex);
+}
+
+static bool
+recorder_push(struct recorder *recorder, const AVPacket *packet) {
+    sc_mutex_lock(&recorder->mutex);
+    assert(!recorder->stopped);
+
+    if (recorder->failed) {
+        // reject any new packet (this will stop the stream)
+        sc_mutex_unlock(&recorder->mutex);
+        return false;
+    }
+
+    struct record_packet *rec = record_packet_new(packet);
+    if (!rec) {
+        LOGC("Could not allocate record packet");
+        sc_mutex_unlock(&recorder->mutex);
+        return false;
+    }
+
+    sc_queue_push(&recorder->queue, next, rec);
+    sc_cond_signal(&recorder->queue_cond);
+
+    sc_mutex_unlock(&recorder->mutex);
+    return true;
+}
+
+static bool
+recorder_packet_sink_open(struct sc_packet_sink *sink, const AVCodec *codec) {
+    struct recorder *recorder = DOWNCAST(sink);
+    return recorder_open(recorder, codec);
+}
+
+static void
+recorder_packet_sink_close(struct sc_packet_sink *sink) {
+    struct recorder *recorder = DOWNCAST(sink);
+    recorder_close(recorder);
+}
+
+static bool
+recorder_packet_sink_push(struct sc_packet_sink *sink, const AVPacket *packet) {
+    struct recorder *recorder = DOWNCAST(sink);
+    return recorder_push(recorder, packet);
+}
+
+bool
+recorder_init(struct recorder *recorder,
+              const char *filename,
+              enum sc_record_format format,
+              struct sc_size declared_frame_size) {
+    recorder->filename = strdup(filename);
+    if (!recorder->filename) {
+        LOGE("Could not strdup filename");
+        return false;
+    }
+
+    recorder->format = format;
+    recorder->declared_frame_size = declared_frame_size;
+
+    static const struct sc_packet_sink_ops ops = {
+        .open = recorder_packet_sink_open,
+        .close = recorder_packet_sink_close,
+        .push = recorder_packet_sink_push,
+    };
+
+    recorder->packet_sink.ops = &ops;
+
     return true;
 }
 
 void
-recorder_stop(struct recorder *recorder) {
+recorder_destroy(struct recorder *recorder) {
-    mutex_lock(recorder->mutex);
+    free(recorder->filename);
-    recorder->stopped = true;
-    cond_signal(recorder->queue_cond);
-    mutex_unlock(recorder->mutex);
-}
-
-void
-recorder_join(struct recorder *recorder) {
-    SDL_WaitThread(recorder->thread, NULL);
-}
-
-bool
-recorder_push(struct recorder *recorder, const AVPacket *packet) {
-    mutex_lock(recorder->mutex);
-    SDL_assert(!recorder->stopped);
-
-    if (recorder->failed) {
-        // reject any new packet (this will stop the stream)
-        return false;
-    }
-
-    bool ok = recorder_queue_push(&recorder->queue, packet);
-    cond_signal(recorder->queue_cond);
-
-    mutex_unlock(recorder->mutex);
-    return ok;
 }

app/src/recorder.h

@@ -1,66 +1,52 @@
 #ifndef RECORDER_H
 #define RECORDER_H
 
-#include <stdbool.h>
-#include <libavformat/avformat.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
-
 #include "common.h"
 
-enum recorder_format {
+#include <stdbool.h>
-    RECORDER_FORMAT_MP4 = 1,
+#include <libavformat/avformat.h>
-    RECORDER_FORMAT_MKV,
+
-};
+#include "coords.h"
+#include "options.h"
+#include "trait/packet_sink.h"
+#include "util/queue.h"
+#include "util/thread.h"
 
 struct record_packet {
-    AVPacket packet;
+    AVPacket *packet;
     struct record_packet *next;
 };
 
-struct recorder_queue {
+struct recorder_queue SC_QUEUE(struct record_packet);
-    struct record_packet *first;
-    struct record_packet *last; // undefined if first is NULL
-};
 
 struct recorder {
+    struct sc_packet_sink packet_sink; // packet sink trait
+
     char *filename;
-    enum recorder_format format;
+    enum sc_record_format format;
     AVFormatContext *ctx;
-    struct size declared_frame_size;
+    struct sc_size declared_frame_size;
     bool header_written;
 
-    SDL_Thread *thread;
+    sc_thread thread;
-    SDL_mutex *mutex;
+    sc_mutex mutex;
-    SDL_cond *queue_cond;
+    sc_cond queue_cond;
-    bool stopped; // set on recorder_stop() by the stream reader
+    bool stopped; // set on recorder_close()
     bool failed; // set on packet write failure
     struct recorder_queue queue;
+
+    // we can write a packet only once we received the next one so that we can
+    // set its duration (next_pts - current_pts)
+    // "previous" is only accessed from the recorder thread, so it does not
+    // need to be protected by the mutex
+    struct record_packet *previous;
 };
 
 bool
 recorder_init(struct recorder *recorder, const char *filename,
-              enum recorder_format format, struct size declared_frame_size);
+              enum sc_record_format format, struct sc_size declared_frame_size);
 
 void
 recorder_destroy(struct recorder *recorder);
 
-bool
-recorder_open(struct recorder *recorder, const AVCodec *input_codec);
-
-void
-recorder_close(struct recorder *recorder);
-
-bool
-recorder_start(struct recorder *recorder);
-
-void
-recorder_stop(struct recorder *recorder);
-
-void
-recorder_join(struct recorder *recorder);
-
-bool
-recorder_push(struct recorder *recorder, const AVPacket *packet);
-
 #endif

app/src/scrcpy.c

@@ -7,60 +7,88 @@
 #include <sys/time.h>
 #include <SDL2/SDL.h>
 
-#include "command.h"
+#ifdef _WIN32
-#include "common.h"
+// not needed here, but winsock2.h must never be included AFTER windows.h
-#include "compat.h"
+# include <winsock2.h>
+# include <windows.h>
+#endif
+
 #include "controller.h"
 #include "decoder.h"
-#include "device.h"
 #include "events.h"
 #include "file_handler.h"
-#include "fps_counter.h"
 #include "input_manager.h"
-#include "log.h"
+#ifdef HAVE_AOA_HID
-#include "lock_util.h"
+# include "hid_keyboard.h"
-#include "net.h"
+#endif
+#include "keyboard_inject.h"
+#include "mouse_inject.h"
 #include "recorder.h"
 #include "screen.h"
 #include "server.h"
 #include "stream.h"
-#include "tiny_xpm.h"
+#include "util/log.h"
-#include "video_buffer.h"
+#include "util/net.h"
+#ifdef HAVE_V4L2
+# include "v4l2_sink.h"
+#endif
 
-static struct server server = SERVER_INITIALIZER;
+struct scrcpy {
-static struct screen screen = SCREEN_INITIALIZER;
+    struct server server;
-static struct fps_counter fps_counter;
+    struct screen screen;
-static struct video_buffer video_buffer;
+    struct stream stream;
-static struct stream stream;
+    struct decoder decoder;
-static struct decoder decoder;
+    struct recorder recorder;
-static struct recorder recorder;
+#ifdef HAVE_V4L2
-static struct controller controller;
+    struct sc_v4l2_sink v4l2_sink;
-static struct file_handler file_handler;
+#endif
-
+    struct controller controller;
-static struct input_manager input_manager = {
+    struct file_handler file_handler;
-    .controller = &controller,
+#ifdef HAVE_AOA_HID
-    .video_buffer = &video_buffer,
+    struct sc_aoa aoa;
-    .screen = &screen,
+#endif
+    union {
+        struct sc_keyboard_inject keyboard_inject;
+#ifdef HAVE_AOA_HID
+        struct sc_hid_keyboard keyboard_hid;
+#endif
+    };
+    struct sc_mouse_inject mouse_inject;
+    struct input_manager input_manager;
 };
 
-// init SDL and set appropriate hints
+static inline void
-static bool
+push_event(uint32_t type, const char *name) {
-sdl_init_and_configure(bool display) {
+    SDL_Event event;
-    uint32_t flags = display ? SDL_INIT_VIDEO : SDL_INIT_EVENTS;
+    event.type = type;
-    if (SDL_Init(flags)) {
+    int ret = SDL_PushEvent(&event);
-        LOGC("Could not initialize SDL: %s", SDL_GetError());
+    if (ret < 0) {
-        return false;
+        LOGE("Could not post %s event: %s", name, SDL_GetError());
+        // What could we do?
+    }
+}
+#define PUSH_EVENT(TYPE) push_event(TYPE, # TYPE)
+
+#ifdef _WIN32
+BOOL WINAPI windows_ctrl_handler(DWORD ctrl_type) {
+    if (ctrl_type == CTRL_C_EVENT) {
+        PUSH_EVENT(SDL_QUIT);
+        return TRUE;
+    }
+    return FALSE;
+}
+#endif // _WIN32
+
+static void
+sdl_set_hints(const char *render_driver) {
+
+    if (render_driver && !SDL_SetHint(SDL_HINT_RENDER_DRIVER, render_driver)) {
+        LOGW("Could not set render driver");
     }
 
-    atexit(SDL_Quit);
+    // Linear filtering
-
+    if (!SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1")) {
-    if (!display) {
+        LOGW("Could not enable linear filtering");
-        return true;
-    }
-
-    // Use the best available scale quality
-    if (!SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "2")) {
-        LOGW("Could not enable bilinear filtering");
     }
 
 #ifdef SCRCPY_SDL_HAS_HINT_MOUSE_FOCUS_CLICKTHROUGH
@@ -70,6 +98,15 @@ sdl_init_and_configure(bool display) {
     }
 #endif
 
+#ifdef SCRCPY_SDL_HAS_HINT_TOUCH_MOUSE_EVENTS
+    // Disable synthetic mouse events from touch events
+    // Touch events with id SDL_TOUCH_MOUSEID are ignored anyway, but it is
+    // better not to generate them in the first place.
+    if (!SDL_SetHint(SDL_HINT_TOUCH_MOUSE_EVENTS, "0")) {
+        LOGW("Could not disable synthetic mouse events");
+    }
+#endif
+
 #ifdef SCRCPY_SDL_HAS_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR
     // Disable compositor bypassing on X11
     if (!SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0")) {
@@ -81,34 +118,30 @@ sdl_init_and_configure(bool display) {
     if (!SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, "0")) {
         LOGW("Could not disable minimize on focus loss");
     }
-
-    // Do not disable the screensaver when scrcpy is running
-    SDL_EnableScreenSaver();
-
-    return true;
 }
 
-
+static void
-#if defined(__APPLE__) || defined(__WINDOWS__)
+sdl_configure(bool display, bool disable_screensaver) {
-# define CONTINUOUS_RESIZING_WORKAROUND
+#ifdef _WIN32
-#endif
+    // Clean up properly on Ctrl+C on Windows
-
+    bool ok = SetConsoleCtrlHandler(windows_ctrl_handler, TRUE);
-#ifdef CONTINUOUS_RESIZING_WORKAROUND
+    if (!ok) {
-// On Windows and MacOS, resizing blocks the event loop, so resizing events are
+        LOGW("Could not set Ctrl+C handler");
-// not triggered. As a workaround, handle them in an event handler.
+    }
-//
+#endif // _WIN32
-// <https://bugzilla.libsdl.org/show_bug.cgi?id=2077>
+
-// <https://stackoverflow.com/a/40693139/1987178>
+    if (!display) {
-static int
+        return;
-event_watcher(void *data, SDL_Event *event) {
+    }
-    if (event->type == SDL_WINDOWEVENT
+
-            && event->window.event == SDL_WINDOWEVENT_RESIZED) {
+    if (disable_screensaver) {
-        // called from another thread, not very safe, but it's a workaround!
+        LOGD("Screensaver disabled");
-        screen_render(&screen);
+        SDL_DisableScreenSaver();
+    } else {
+        LOGD("Screensaver enabled");
+        SDL_EnableScreenSaver();
     }
-    return 0;
 }
-#endif
 
 static bool
 is_apk(const char *file) {
@@ -123,7 +156,8 @@ enum event_result {
 };
 
 static enum event_result
-handle_event(SDL_Event *event, bool control) {
+handle_event(struct scrcpy *s, const struct scrcpy_options *options,
+             SDL_Event *event) {
     switch (event->type) {
         case EVENT_STREAM_STOPPED:
             LOGD("Video stream stopped");
@@ -131,86 +165,50 @@ handle_event(SDL_Event *event, bool control) {
         case SDL_QUIT:
             LOGD("User requested to quit");
             return EVENT_RESULT_STOPPED_BY_USER;
-        case EVENT_NEW_FRAME:
-            if (!screen.has_frame) {
-                screen.has_frame = true;
-                // this is the very first frame, show the window
-                screen_show_window(&screen);
-            }
-            if (!screen_update_frame(&screen, &video_buffer)) {
-                return EVENT_RESULT_CONTINUE;
-            }
-            break;
-        case SDL_WINDOWEVENT:
-            switch (event->window.event) {
-                case SDL_WINDOWEVENT_EXPOSED:
-                case SDL_WINDOWEVENT_SIZE_CHANGED:
-                    screen_render(&screen);
-                    break;
-            }
-            break;
-        case SDL_TEXTINPUT:
-            if (!control) {
-                break;
-            }
-            input_manager_process_text_input(&input_manager, &event->text);
-            break;
-        case SDL_KEYDOWN:
-        case SDL_KEYUP:
-            // some key events do not interact with the device, so process the
-            // event even if control is disabled
-            input_manager_process_key(&input_manager, &event->key, control);
-            break;
-        case SDL_MOUSEMOTION:
-            if (!control) {
-                break;
-            }
-            input_manager_process_mouse_motion(&input_manager, &event->motion);
-            break;
-        case SDL_MOUSEWHEEL:
-            if (!control) {
-                break;
-            }
-            input_manager_process_mouse_wheel(&input_manager, &event->wheel);
-            break;
-        case SDL_MOUSEBUTTONDOWN:
-        case SDL_MOUSEBUTTONUP:
-            // some mouse events do not interact with the device, so process
-            // the event even if control is disabled
-            input_manager_process_mouse_button(&input_manager, &event->button,
-                                               control);
-            break;
         case SDL_DROPFILE: {
-            if (!control) {
+            if (!options->control) {
                 break;
             }
+            char *file = strdup(event->drop.file);
+            SDL_free(event->drop.file);
+            if (!file) {
+                LOGW("Could not strdup drop filename\n");
+                break;
+            }
+
             file_handler_action_t action;
-            if (is_apk(event->drop.file)) {
+            if (is_apk(file)) {
                 action = ACTION_INSTALL_APK;
             } else {
                 action = ACTION_PUSH_FILE;
             }
-            file_handler_request(&file_handler, action, event->drop.file);
+            file_handler_request(&s->file_handler, action, file);
-            break;
+            goto end;
         }
     }
+
+    bool consumed = screen_handle_event(&s->screen, event);
+    if (consumed) {
+        goto end;
+    }
+
+    consumed = input_manager_handle_event(&s->input_manager, event);
+    (void) consumed;
+
+end:
     return EVENT_RESULT_CONTINUE;
 }
 
 static bool
-event_loop(bool display, bool control) {
+event_loop(struct scrcpy *s, const struct scrcpy_options *options) {
-#ifdef CONTINUOUS_RESIZING_WORKAROUND
-    if (display) {
-        SDL_AddEventWatch(event_watcher, NULL);
-    }
-#endif
     SDL_Event event;
     while (SDL_WaitEvent(&event)) {
-        enum event_result result = handle_event(&event, control);
+        enum event_result result = handle_event(s, options, &event);
         switch (result) {
             case EVENT_RESULT_STOPPED_BY_USER:
                 return true;
             case EVENT_RESULT_STOPPED_BY_EOS:
+                LOGW("Device disconnected");
                 return false;
             case EVENT_RESULT_CONTINUE:
                 break;
@@ -219,21 +217,6 @@ event_loop(bool display, bool control) {
     return false;
 }
 
-static process_t
-set_show_touches_enabled(const char *serial, bool enabled) {
-    const char *value = enabled ? "1" : "0";
-    const char *const adb_cmd[] = {
-        "shell", "settings", "put", "system", "show_touches", value
-    };
-    return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
-}
-
-static void
-wait_show_touches(process_t process) {
-    // reap the process, ignore the result
-    process_check_success(process, "show_touches");
-}
-
 static SDL_LogPriority
 sdl_priority_from_av_level(int level) {
     switch (level) {
@@ -253,226 +236,367 @@ sdl_priority_from_av_level(int level) {
 
 static void
 av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
+    (void) avcl;
     SDL_LogPriority priority = sdl_priority_from_av_level(level);
     if (priority == 0) {
         return;
     }
-    char *local_fmt = SDL_malloc(strlen(fmt) + 10);
+
+    size_t fmt_len = strlen(fmt);
+    char *local_fmt = malloc(fmt_len + 10);
     if (!local_fmt) {
         LOGC("Could not allocate string");
         return;
     }
-    // strcpy is safe here, the destination is large enough
+    memcpy(local_fmt, "[FFmpeg] ", 9); // do not write the final '\0'
-    strcpy(local_fmt, "[FFmpeg] ");
+    memcpy(local_fmt + 9, fmt, fmt_len + 1); // include '\0'
-    strcpy(local_fmt + 9, fmt);
     SDL_LogMessageV(SDL_LOG_CATEGORY_VIDEO, priority, local_fmt, vl);
-    SDL_free(local_fmt);
+    free(local_fmt);
+}
+
+static void
+stream_on_eos(struct stream *stream, void *userdata) {
+    (void) stream;
+    (void) userdata;
+
+    PUSH_EVENT(EVENT_STREAM_STOPPED);
 }
 
 bool
-scrcpy(const struct scrcpy_options *options) {
+scrcpy(struct scrcpy_options *options) {
-    bool record = !!options->record_filename;
+    static struct scrcpy scrcpy;
-    struct server_params params = {
+    struct scrcpy *s = &scrcpy;
-        .crop = options->crop,
+
-        .local_port = options->port,
+    // Minimal SDL initialization
-        .max_size = options->max_size,
+    if (SDL_Init(SDL_INIT_EVENTS)) {
-        .bit_rate = options->bit_rate,
+        LOGC("Could not initialize SDL: %s", SDL_GetError());
-        .control = options->control,
-    };
-    if (!server_start(&server, options->serial, &params)) {
         return false;
     }
 
-    process_t proc_show_touches = PROCESS_NONE;
+    atexit(SDL_Quit);
-    bool show_touches_waited;
+
-    if (options->show_touches) {
+    if (!server_init(&s->server)) {
-        LOGI("Enable show_touches");
+        return false;
-        proc_show_touches = set_show_touches_enabled(options->serial, true);
-        show_touches_waited = false;
     }
 
     bool ret = false;
 
-    bool fps_counter_initialized = false;
+    bool server_started = false;
-    bool video_buffer_initialized = false;
     bool file_handler_initialized = false;
     bool recorder_initialized = false;
+#ifdef HAVE_V4L2
+    bool v4l2_sink_initialized = false;
+#endif
     bool stream_started = false;
+#ifdef HAVE_AOA_HID
+    bool aoa_hid_initialized = false;
+#endif
     bool controller_initialized = false;
     bool controller_started = false;
+    bool screen_initialized = false;
 
-    if (!sdl_init_and_configure(options->display)) {
+    struct server_params params = {
+        .serial = options->serial,
+        .log_level = options->log_level,
+        .crop = options->crop,
+        .port_range = options->port_range,
+        .max_size = options->max_size,
+        .bit_rate = options->bit_rate,
+        .max_fps = options->max_fps,
+        .lock_video_orientation = options->lock_video_orientation,
+        .control = options->control,
+        .display_id = options->display_id,
+        .show_touches = options->show_touches,
+        .stay_awake = options->stay_awake,
+        .codec_options = options->codec_options,
+        .encoder_name = options->encoder_name,
+        .force_adb_forward = options->force_adb_forward,
+        .power_off_on_close = options->power_off_on_close,
+    };
+    if (!server_start(&s->server, &params)) {
         goto end;
     }
 
-    if (!server_connect_to(&server)) {
+    server_started = true;
+
+    if (options->display) {
+        sdl_set_hints(options->render_driver);
+    }
+
+    // Initialize SDL video in addition if display is enabled
+    if (options->display && SDL_Init(SDL_INIT_VIDEO)) {
+        LOGC("Could not initialize SDL: %s", SDL_GetError());
         goto end;
     }
 
-    char device_name[DEVICE_NAME_FIELD_LENGTH];
+    sdl_configure(options->display, options->disable_screensaver);
-    struct size frame_size;
 
-    // screenrecord does not send frames when the screen content does not
+    struct server_info info;
-    // change therefore, we transmit the screen size before the video stream,
+
-    // to be able to init the window immediately
+    if (!server_connect_to(&s->server, &info)) {
-    if (!device_read_info(server.video_socket, device_name, &frame_size)) {
         goto end;
     }
 
+    if (options->display && options->control) {
+        if (!file_handler_init(&s->file_handler, s->server.serial,
+                               options->push_target)) {
+            goto end;
+        }
+        file_handler_initialized = true;
+    }
+
     struct decoder *dec = NULL;
-    if (options->display) {
+    bool needs_decoder = options->display;
-        if (!fps_counter_init(&fps_counter)) {
+#ifdef HAVE_V4L2
-            goto end;
+    needs_decoder |= !!options->v4l2_device;
-        }
+#endif
-        fps_counter_initialized = true;
+    if (needs_decoder) {
-
+        decoder_init(&s->decoder);
-        if (!video_buffer_init(&video_buffer, &fps_counter,
+        dec = &s->decoder;
-                               options->render_expired_frames)) {
-            goto end;
-        }
-        video_buffer_initialized = true;
-
-        if (options->control) {
-            if (!file_handler_init(&file_handler, server.serial,
-                                   options->push_target)) {
-                goto end;
-            }
-            file_handler_initialized = true;
-        }
-
-        decoder_init(&decoder, &video_buffer);
-        dec = &decoder;
     }
 
     struct recorder *rec = NULL;
-    if (record) {
+    if (options->record_filename) {
-        if (!recorder_init(&recorder,
+        if (!recorder_init(&s->recorder,
                            options->record_filename,
                            options->record_format,
-                           frame_size)) {
+                           info.frame_size)) {
             goto end;
         }
-        rec = &recorder;
+        rec = &s->recorder;
         recorder_initialized = true;
     }
 
     av_log_set_callback(av_log_callback);
 
-    stream_init(&stream, server.video_socket, dec, rec);
+    static const struct stream_callbacks stream_cbs = {
+        .on_eos = stream_on_eos,
+    };
+    stream_init(&s->stream, s->server.video_socket, &stream_cbs, NULL);
 
-    // now we consumed the header values, the socket receives the video stream
+    if (dec) {
-    // start the stream
+        stream_add_sink(&s->stream, &dec->packet_sink);
-    if (!stream_start(&stream)) {
-        goto end;
     }
-    stream_started = true;
 
-    if (options->display) {
+    if (rec) {
-        if (options->control) {
+        stream_add_sink(&s->stream, &rec->packet_sink);
-            if (!controller_init(&controller, server.control_socket)) {
+    }
-                goto end;
-            }
-            controller_initialized = true;
 
-            if (!controller_start(&controller)) {
+    if (options->control) {
-                goto end;
+        if (!controller_init(&s->controller, s->server.control_socket)) {
-            }
-            controller_started = true;
-        }
-
-        const char *window_title =
-            options->window_title ? options->window_title : device_name;
-
-        if (!screen_init_rendering(&screen, window_title, frame_size,
-                                   options->always_on_top)) {
             goto end;
         }
+        controller_initialized = true;
+
+        if (!controller_start(&s->controller)) {
+            goto end;
+        }
+        controller_started = true;
 
         if (options->turn_screen_off) {
             struct control_msg msg;
             msg.type = CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE;
             msg.set_screen_power_mode.mode = SCREEN_POWER_MODE_OFF;
 
-            if (!controller_push_msg(&controller, &msg)) {
+            if (!controller_push_msg(&s->controller, &msg)) {
                 LOGW("Could not request 'set screen power mode'");
             }
         }
+    }
 
-        if (options->fullscreen) {
+    if (options->display) {
-            screen_switch_fullscreen(&screen);
+        const char *window_title =
+            options->window_title ? options->window_title : info.device_name;
+
+        struct screen_params screen_params = {
+            .window_title = window_title,
+            .frame_size = info.frame_size,
+            .always_on_top = options->always_on_top,
+            .window_x = options->window_x,
+            .window_y = options->window_y,
+            .window_width = options->window_width,
+            .window_height = options->window_height,
+            .window_borderless = options->window_borderless,
+            .rotation = options->rotation,
+            .mipmaps = options->mipmaps,
+            .fullscreen = options->fullscreen,
+            .buffering_time = options->display_buffer,
+        };
+
+        if (!screen_init(&s->screen, &screen_params)) {
+            goto end;
         }
+        screen_initialized = true;
+
+        decoder_add_sink(&s->decoder, &s->screen.frame_sink);
     }
 
-    if (options->show_touches) {
+#ifdef HAVE_V4L2
-        wait_show_touches(proc_show_touches);
+    if (options->v4l2_device) {
-        show_touches_waited = true;
+        if (!sc_v4l2_sink_init(&s->v4l2_sink, options->v4l2_device,
+                               info.frame_size, options->v4l2_buffer)) {
+            goto end;
+        }
+
+        decoder_add_sink(&s->decoder, &s->v4l2_sink.frame_sink);
+
+        v4l2_sink_initialized = true;
+    }
+#endif
+
+    // now we consumed the header values, the socket receives the video stream
+    // start the stream
+    if (!stream_start(&s->stream)) {
+        goto end;
+    }
+    stream_started = true;
+
+    struct sc_key_processor *kp = NULL;
+    struct sc_mouse_processor *mp = NULL;
+
+    if (options->control) {
+        if (options->keyboard_input_mode == SC_KEYBOARD_INPUT_MODE_HID) {
+#ifdef HAVE_AOA_HID
+            bool aoa_hid_ok = false;
+
+            char *serialno = NULL;
+
+            const char *serial = options->serial;
+            if (!serial) {
+                serialno = adb_get_serialno();
+                if (!serialno) {
+                    LOGE("Could not get device serial");
+                    goto aoa_hid_end;
+                }
+                serial = serialno;
+                LOGI("Device serial: %s", serial);
+            }
+
+            bool ok = sc_aoa_init(&s->aoa, serial);
+            free(serialno);
+            if (!ok) {
+                goto aoa_hid_end;
+            }
+
+            if (!sc_hid_keyboard_init(&s->keyboard_hid, &s->aoa)) {
+                sc_aoa_destroy(&s->aoa);
+                goto aoa_hid_end;
+            }
+
+            if (!sc_aoa_start(&s->aoa)) {
+                sc_hid_keyboard_destroy(&s->keyboard_hid);
+                sc_aoa_destroy(&s->aoa);
+                goto aoa_hid_end;
+            }
+
+            aoa_hid_ok = true;
+            kp = &s->keyboard_hid.key_processor;
+
+            aoa_hid_initialized = true;
+
+aoa_hid_end:
+            if (!aoa_hid_ok) {
+                LOGE("Failed to enable HID over AOA, "
+                     "fallback to default keyboard injection method "
+                     "(-K/--hid-keyboard ignored)");
+                options->keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_INJECT;
+            }
+#else
+            LOGE("HID over AOA is not supported on this platform, "
+                 "fallback to default keyboard injection method "
+                 "(-K/--hid-keyboard ignored)");
+            options->keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_INJECT;
+#endif
+        }
+
+        // keyboard_input_mode may have been reset if HID mode failed
+        if (options->keyboard_input_mode == SC_KEYBOARD_INPUT_MODE_INJECT) {
+            sc_keyboard_inject_init(&s->keyboard_inject, &s->controller,
+                                    options);
+            kp = &s->keyboard_inject.key_processor;
+        }
+
+        sc_mouse_inject_init(&s->mouse_inject, &s->controller, &s->screen);
+        mp = &s->mouse_inject.mouse_processor;
     }
 
-    ret = event_loop(options->display, options->control);
+    input_manager_init(&s->input_manager, &s->controller, &s->screen, kp, mp,
+                       options);
+
+    ret = event_loop(s, options);
     LOGD("quit...");
 
-    screen_destroy(&screen);
+    // Close the window immediately on closing, because screen_destroy() may
+    // only be called once the stream thread is joined (it may take time)
+    screen_hide_window(&s->screen);
 
 end:
-    // stop stream and controller so that they don't continue once their socket
+    // The stream is not stopped explicitly, because it will stop by itself on
-    // is shutdown
+    // end-of-stream
-    if (stream_started) {
+#ifdef HAVE_AOA_HID
-        stream_stop(&stream);
+    if (aoa_hid_initialized) {
+        sc_hid_keyboard_destroy(&s->keyboard_hid);
+        sc_aoa_stop(&s->aoa);
     }
+#endif
     if (controller_started) {
-        controller_stop(&controller);
+        controller_stop(&s->controller);
     }
     if (file_handler_initialized) {
-        file_handler_stop(&file_handler);
+        file_handler_stop(&s->file_handler);
     }
-    if (fps_counter_initialized) {
+    if (screen_initialized) {
-        fps_counter_interrupt(&fps_counter);
+        screen_interrupt(&s->screen);
     }
 
-    // shutdown the sockets and kill the server
+    if (server_started) {
-    server_stop(&server);
+        // shutdown the sockets and kill the server
+        server_stop(&s->server);
+    }
 
     // now that the sockets are shutdown, the stream and controller are
     // interrupted, we can join them
     if (stream_started) {
-        stream_join(&stream);
+        stream_join(&s->stream);
     }
+
+#ifdef HAVE_V4L2
+    if (v4l2_sink_initialized) {
+        sc_v4l2_sink_destroy(&s->v4l2_sink);
+    }
+#endif
+
+#ifdef HAVE_AOA_HID
+    if (aoa_hid_initialized) {
+        sc_aoa_join(&s->aoa);
+        sc_aoa_destroy(&s->aoa);
+    }
+#endif
+
+    // Destroy the screen only after the stream is guaranteed to be finished,
+    // because otherwise the screen could receive new frames after destruction
+    if (screen_initialized) {
+        screen_join(&s->screen);
+        screen_destroy(&s->screen);
+    }
+
     if (controller_started) {
-        controller_join(&controller);
+        controller_join(&s->controller);
     }
     if (controller_initialized) {
-        controller_destroy(&controller);
+        controller_destroy(&s->controller);
     }
 
     if (recorder_initialized) {
-        recorder_destroy(&recorder);
+        recorder_destroy(&s->recorder);
     }
 
     if (file_handler_initialized) {
-        file_handler_join(&file_handler);
+        file_handler_join(&s->file_handler);
-        file_handler_destroy(&file_handler);
+        file_handler_destroy(&s->file_handler);
     }
 
-    if (video_buffer_initialized) {
+    server_destroy(&s->server);
-        video_buffer_destroy(&video_buffer);
-    }
-
-    if (fps_counter_initialized) {
-        fps_counter_join(&fps_counter);
-        fps_counter_destroy(&fps_counter);
-    }
-
-    if (options->show_touches) {
-        if (!show_touches_waited) {
-            // wait the process which enabled "show touches"
-            wait_show_touches(proc_show_touches);
-        }
-        LOGI("Disable show_touches");
-        proc_show_touches = set_show_touches_enabled(options->serial, false);
-        wait_show_touches(proc_show_touches);
-    }
-
-    server_destroy(&server);
 
     return ret;
 }

app/src/scrcpy.h

@@ -1,30 +1,12 @@
 #ifndef SCRCPY_H
 #define SCRCPY_H
 
-#include <stdbool.h>
+#include "common.h"
-#include <stdint.h>
-#include <recorder.h>
 
-struct scrcpy_options {
+#include <stdbool.h>
-    const char *serial;
+#include "options.h"
-    const char *crop;
-    const char *record_filename;
-    const char *window_title;
-    const char *push_target;
-    enum recorder_format record_format;
-    uint16_t port;
-    uint16_t max_size;
-    uint32_t bit_rate;
-    bool show_touches;
-    bool fullscreen;
-    bool always_on_top;
-    bool control;
-    bool display;
-    bool turn_screen_off;
-    bool render_expired_frames;
-};
 
 bool
-scrcpy(const struct scrcpy_options *options);
+scrcpy(struct scrcpy_options *options);
 
 #endif

app/src/screen.c

@@ -1,56 +1,68 @@
 #include "screen.h"
 
+#include <assert.h>
 #include <string.h>
 #include <SDL2/SDL.h>
 
-#include "common.h"
+#include "events.h"
-#include "compat.h"
+#include "icon.h"
-#include "icon.xpm"
+#include "options.h"
-#include "lock_util.h"
-#include "log.h"
-#include "tiny_xpm.h"
 #include "video_buffer.h"
+#include "util/log.h"
 
 #define DISPLAY_MARGINS 96
 
-// get the window size in a struct size
+#define DOWNCAST(SINK) container_of(SINK, struct screen, frame_sink)
-static struct size
+
-get_native_window_size(SDL_Window *window) {
+static inline struct sc_size
+get_rotated_size(struct sc_size size, int rotation) {
+    struct sc_size rotated_size;
+    if (rotation & 1) {
+        rotated_size.width = size.height;
+        rotated_size.height = size.width;
+    } else {
+        rotated_size.width = size.width;
+        rotated_size.height = size.height;
+    }
+    return rotated_size;
+}
+
+// get the window size in a struct sc_size
+static struct sc_size
+get_window_size(const struct screen *screen) {
     int width;
     int height;
-    SDL_GetWindowSize(window, &width, &height);
+    SDL_GetWindowSize(screen->window, &width, &height);
 
-    struct size size;
+    struct sc_size size;
     size.width = width;
     size.height = height;
     return size;
 }
 
-// get the windowed window size
+static struct sc_point
-static struct size
+get_window_position(const struct screen *screen) {
-get_window_size(const struct screen *screen) {
+    int x;
-    if (screen->fullscreen) {
+    int y;
-        return screen->windowed_window_size;
+    SDL_GetWindowPosition(screen->window, &x, &y);
-    }
+
-    return get_native_window_size(screen->window);
+    struct sc_point point;
+    point.x = x;
+    point.y = y;
+    return point;
 }
 
 // set the window size to be applied when fullscreen is disabled
 static void
-set_window_size(struct screen *screen, struct size new_size) {
+set_window_size(struct screen *screen, struct sc_size new_size) {
-    // setting the window size during fullscreen is implementation defined,
+    assert(!screen->fullscreen);
-    // so apply the resize only after fullscreen is disabled
+    assert(!screen->maximized);
-    if (screen->fullscreen) {
+    SDL_SetWindowSize(screen->window, new_size.width, new_size.height);
-        // SDL_SetWindowSize will be called when fullscreen will be disabled
-        screen->windowed_window_size = new_size;
-    } else {
-        SDL_SetWindowSize(screen->window, new_size.width, new_size.height);
-    }
 }
 
 // get the preferred display bounds (i.e. the screen bounds with some margins)
 static bool
-get_preferred_display_bounds(struct size *bounds) {
+get_preferred_display_bounds(struct sc_size *bounds) {
     SDL_Rect rect;
 #ifdef SCRCPY_SDL_HAS_GET_DISPLAY_USABLE_BOUNDS
 # define GET_DISPLAY_BOUNDS(i, r) SDL_GetDisplayUsableBounds((i), (r))
@@ -67,83 +79,285 @@ get_preferred_display_bounds(struct size *bounds) {
     return true;
 }
 
+static bool
+is_optimal_size(struct sc_size current_size, struct sc_size content_size) {
+    // The size is optimal if we can recompute one dimension of the current
+    // size from the other
+    return current_size.height == current_size.width * content_size.height
+                                                     / content_size.width
+        || current_size.width == current_size.height * content_size.width
+                                                     / content_size.height;
+}
+
 // return the optimal size of the window, with the following constraints:
 //  - it attempts to keep at least one dimension of the current_size (i.e. it
 //    crops the black borders)
 //  - it keeps the aspect ratio
 //  - it scales down to make it fit in the display_size
-static struct size
+static struct sc_size
-get_optimal_size(struct size current_size, struct size frame_size) {
+get_optimal_size(struct sc_size current_size, struct sc_size content_size) {
-    if (frame_size.width == 0 || frame_size.height == 0) {
+    if (content_size.width == 0 || content_size.height == 0) {
         // avoid division by 0
         return current_size;
     }
 
-    struct size display_size;
+    struct sc_size window_size;
-    // 32 bits because we need to multiply two 16 bits values
-    uint32_t w;
-    uint32_t h;
 
+    struct sc_size display_size;
     if (!get_preferred_display_bounds(&display_size)) {
         // could not get display bounds, do not constraint the size
-        w = current_size.width;
+        window_size.width = current_size.width;
-        h = current_size.height;
+        window_size.height = current_size.height;
     } else {
-        w = MIN(current_size.width, display_size.width);
+        window_size.width = MIN(current_size.width, display_size.width);
-        h = MIN(current_size.height, display_size.height);
+        window_size.height = MIN(current_size.height, display_size.height);
     }
 
-    bool keep_width = frame_size.width * h > frame_size.height * w;
+    if (is_optimal_size(window_size, content_size)) {
+        return window_size;
+    }
+
+    bool keep_width = content_size.width * window_size.height
+                    > content_size.height * window_size.width;
     if (keep_width) {
         // remove black borders on top and bottom
-        h = frame_size.height * w / frame_size.width;
+        window_size.height = content_size.height * window_size.width
+                           / content_size.width;
     } else {
         // remove black borders on left and right (or none at all if it already
         // fits)
-        w = frame_size.width * h / frame_size.height;
+        window_size.width = content_size.width * window_size.height
+                          / content_size.height;
     }
 
-    // w and h must fit into 16 bits
+    return window_size;
-    SDL_assert_release(w < 0x10000 && h < 0x10000);
-    return (struct size) {w, h};
-}
-
-// same as get_optimal_size(), but read the current size from the window
-static inline struct size
-get_optimal_window_size(const struct screen *screen, struct size frame_size) {
-    struct size current_size = get_window_size(screen);
-    return get_optimal_size(current_size, frame_size);
 }
 
 // initially, there is no current size, so use the frame size as current size
-static inline struct size
+// req_width and req_height, if not 0, are the sizes requested by the user
-get_initial_optimal_size(struct size frame_size) {
+static inline struct sc_size
-    return get_optimal_size(frame_size, frame_size);
+get_initial_optimal_size(struct sc_size content_size, uint16_t req_width,
+                         uint16_t req_height) {
+    struct sc_size window_size;
+    if (!req_width && !req_height) {
+        window_size = get_optimal_size(content_size, content_size);
+    } else {
+        if (req_width) {
+            window_size.width = req_width;
+        } else {
+            // compute from the requested height
+            window_size.width = (uint32_t) req_height * content_size.width
+                              / content_size.height;
+        }
+        if (req_height) {
+            window_size.height = req_height;
+        } else {
+            // compute from the requested width
+            window_size.height = (uint32_t) req_width * content_size.height
+                               / content_size.width;
+        }
+    }
+    return window_size;
 }
 
-void
+static void
-screen_init(struct screen *screen) {
+screen_update_content_rect(struct screen *screen) {
-    *screen = (struct screen) SCREEN_INITIALIZER;
+    int dw;
+    int dh;
+    SDL_GL_GetDrawableSize(screen->window, &dw, &dh);
+
+    struct sc_size content_size = screen->content_size;
+    // The drawable size is the window size * the HiDPI scale
+    struct sc_size drawable_size = {dw, dh};
+
+    SDL_Rect *rect = &screen->rect;
+
+    if (is_optimal_size(drawable_size, content_size)) {
+        rect->x = 0;
+        rect->y = 0;
+        rect->w = drawable_size.width;
+        rect->h = drawable_size.height;
+        return;
+    }
+
+    bool keep_width = content_size.width * drawable_size.height
+                    > content_size.height * drawable_size.width;
+    if (keep_width) {
+        rect->x = 0;
+        rect->w = drawable_size.width;
+        rect->h = drawable_size.width * content_size.height
+                                      / content_size.width;
+        rect->y = (drawable_size.height - rect->h) / 2;
+    } else {
+        rect->y = 0;
+        rect->h = drawable_size.height;
+        rect->w = drawable_size.height * content_size.width
+                                       / content_size.height;
+        rect->x = (drawable_size.width - rect->w) / 2;
+    }
 }
 
 static inline SDL_Texture *
-create_texture(SDL_Renderer *renderer, struct size frame_size) {
+create_texture(struct screen *screen) {
-    return SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12,
+    SDL_Renderer *renderer = screen->renderer;
-                             SDL_TEXTUREACCESS_STREAMING,
+    struct sc_size size = screen->frame_size;
-                             frame_size.width, frame_size.height);
+    SDL_Texture *texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12,
+                                             SDL_TEXTUREACCESS_STREAMING,
+                                             size.width, size.height);
+    if (!texture) {
+        return NULL;
+    }
+
+    if (screen->mipmaps) {
+        struct sc_opengl *gl = &screen->gl;
+
+        SDL_GL_BindTexture(texture, NULL, NULL);
+
+        // Enable trilinear filtering for downscaling
+        gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+                          GL_LINEAR_MIPMAP_LINEAR);
+        gl->TexParameterf(GL_TEXTURE_2D, GL_TEXTURE_LOD_BIAS, -1.f);
+
+        SDL_GL_UnbindTexture(texture);
+    }
+
+    return texture;
+}
+
+#if defined(__APPLE__) || defined(__WINDOWS__)
+# define CONTINUOUS_RESIZING_WORKAROUND
+#endif
+
+#ifdef CONTINUOUS_RESIZING_WORKAROUND
+// On Windows and MacOS, resizing blocks the event loop, so resizing events are
+// not triggered. As a workaround, handle them in an event handler.
+//
+// <https://bugzilla.libsdl.org/show_bug.cgi?id=2077>
+// <https://stackoverflow.com/a/40693139/1987178>
+static int
+event_watcher(void *data, SDL_Event *event) {
+    struct screen *screen = data;
+    if (event->type == SDL_WINDOWEVENT
+            && event->window.event == SDL_WINDOWEVENT_RESIZED) {
+        // In practice, it seems to always be called from the same thread in
+        // that specific case. Anyway, it's just a workaround.
+        screen_render(screen, true);
+    }
+    return 0;
+}
+#endif
+
+static bool
+screen_frame_sink_open(struct sc_frame_sink *sink) {
+    struct screen *screen = DOWNCAST(sink);
+    (void) screen;
+#ifndef NDEBUG
+    screen->open = true;
+#endif
+
+    // nothing to do, the screen is already open on the main thread
+    return true;
+}
+
+static void
+screen_frame_sink_close(struct sc_frame_sink *sink) {
+    struct screen *screen = DOWNCAST(sink);
+    (void) screen;
+#ifndef NDEBUG
+    screen->open = false;
+#endif
+
+    // nothing to do, the screen lifecycle is not managed by the frame producer
+}
+
+static bool
+screen_frame_sink_push(struct sc_frame_sink *sink, const AVFrame *frame) {
+    struct screen *screen = DOWNCAST(sink);
+    return sc_video_buffer_push(&screen->vb, frame);
+}
+
+static void
+sc_video_buffer_on_new_frame(struct sc_video_buffer *vb, bool previous_skipped,
+                             void *userdata) {
+    (void) vb;
+    struct screen *screen = userdata;
+
+    // event_failed implies previous_skipped (the previous frame may not have
+    // been consumed if the event was not sent)
+    assert(!screen->event_failed || previous_skipped);
+
+    bool need_new_event;
+    if (previous_skipped) {
+        fps_counter_add_skipped_frame(&screen->fps_counter);
+        // The EVENT_NEW_FRAME triggered for the previous frame will consume
+        // this new frame instead, unless the previous event failed
+        need_new_event = screen->event_failed;
+    } else {
+        need_new_event = true;
+    }
+
+    if (need_new_event) {
+        static SDL_Event new_frame_event = {
+            .type = EVENT_NEW_FRAME,
+        };
+
+        // Post the event on the UI thread
+        int ret = SDL_PushEvent(&new_frame_event);
+        if (ret < 0) {
+            LOGW("Could not post new frame event: %s", SDL_GetError());
+            screen->event_failed = true;
+        } else {
+            screen->event_failed = false;
+        }
+    }
 }
 
 bool
-screen_init_rendering(struct screen *screen, const char *window_title,
+screen_init(struct screen *screen, const struct screen_params *params) {
-                      struct size frame_size, bool always_on_top) {
+    screen->resize_pending = false;
-    screen->frame_size = frame_size;
+    screen->has_frame = false;
+    screen->fullscreen = false;
+    screen->maximized = false;
+    screen->event_failed = false;
 
-    struct size window_size = get_initial_optimal_size(frame_size);
+    static const struct sc_video_buffer_callbacks cbs = {
-    uint32_t window_flags = SDL_WINDOW_HIDDEN | SDL_WINDOW_RESIZABLE;
+        .on_new_frame = sc_video_buffer_on_new_frame,
-#ifdef HIDPI_SUPPORT
+    };
-    window_flags |= SDL_WINDOW_ALLOW_HIGHDPI;
+
-#endif
+    bool ok = sc_video_buffer_init(&screen->vb, params->buffering_time, &cbs,
-    if (always_on_top) {
+                                   screen);
+    if (!ok) {
+        LOGE("Could not initialize video buffer");
+        return false;
+    }
+
+    ok = sc_video_buffer_start(&screen->vb);
+    if (!ok) {
+        LOGE("Could not start video_buffer");
+        goto error_destroy_video_buffer;
+    }
+
+    if (!fps_counter_init(&screen->fps_counter)) {
+        LOGE("Could not initialize FPS counter");
+        goto error_stop_and_join_video_buffer;
+    }
+
+    screen->frame_size = params->frame_size;
+    screen->rotation = params->rotation;
+    if (screen->rotation) {
+        LOGI("Initial display rotation set to %u", screen->rotation);
+    }
+    struct sc_size content_size =
+        get_rotated_size(screen->frame_size, screen->rotation);
+    screen->content_size = content_size;
+
+    struct sc_size window_size =
+        get_initial_optimal_size(content_size,params->window_width,
+                                 params->window_height);
+    uint32_t window_flags = SDL_WINDOW_HIDDEN
+                          | SDL_WINDOW_RESIZABLE
+                          | SDL_WINDOW_ALLOW_HIGHDPI;
+    if (params->always_on_top) {
 #ifdef SCRCPY_SDL_HAS_WINDOW_ALWAYS_ON_TOP
         window_flags |= SDL_WINDOW_ALWAYS_ON_TOP;
 #else
@@ -151,98 +365,241 @@ screen_init_rendering(struct screen *screen, const char *window_title,
              "(compile with SDL >= 2.0.5 to enable it)");
 #endif
     }
+    if (params->window_borderless) {
+        window_flags |= SDL_WINDOW_BORDERLESS;
+    }
 
-    screen->window = SDL_CreateWindow(window_title, SDL_WINDOWPOS_UNDEFINED,
+    int x = params->window_x != SC_WINDOW_POSITION_UNDEFINED
-                                      SDL_WINDOWPOS_UNDEFINED,
+          ? params->window_x : (int) SDL_WINDOWPOS_UNDEFINED;
+    int y = params->window_y != SC_WINDOW_POSITION_UNDEFINED
+          ? params->window_y : (int) SDL_WINDOWPOS_UNDEFINED;
+    screen->window = SDL_CreateWindow(params->window_title, x, y,
                                       window_size.width, window_size.height,
                                       window_flags);
     if (!screen->window) {
         LOGC("Could not create window: %s", SDL_GetError());
-        return false;
+        goto error_destroy_fps_counter;
     }
 
     screen->renderer = SDL_CreateRenderer(screen->window, -1,
                                           SDL_RENDERER_ACCELERATED);
     if (!screen->renderer) {
         LOGC("Could not create renderer: %s", SDL_GetError());
-        screen_destroy(screen);
+        goto error_destroy_window;
-        return false;
     }
 
-    if (SDL_RenderSetLogicalSize(screen->renderer, frame_size.width,
+    SDL_RendererInfo renderer_info;
-                                 frame_size.height)) {
+    int r = SDL_GetRendererInfo(screen->renderer, &renderer_info);
-        LOGE("Could not set renderer logical size: %s", SDL_GetError());
+    const char *renderer_name = r ? NULL : renderer_info.name;
-        screen_destroy(screen);
+    LOGI("Renderer: %s", renderer_name ? renderer_name : "(unknown)");
-        return false;
+
+    screen->mipmaps = false;
+
+    // starts with "opengl"
+    bool use_opengl = renderer_name && !strncmp(renderer_name, "opengl", 6);
+    if (use_opengl) {
+        struct sc_opengl *gl = &screen->gl;
+        sc_opengl_init(gl);
+
+        LOGI("OpenGL version: %s", gl->version);
+
+        if (params->mipmaps) {
+            bool supports_mipmaps =
+                sc_opengl_version_at_least(gl, 3, 0, /* OpenGL 3.0+ */
+                                               2, 0  /* OpenGL ES 2.0+ */);
+            if (supports_mipmaps) {
+                LOGI("Trilinear filtering enabled");
+                screen->mipmaps = true;
+            } else {
+                LOGW("Trilinear filtering disabled "
+                     "(OpenGL 3.0+ or ES 2.0+ required)");
+            }
+        } else {
+            LOGI("Trilinear filtering disabled");
+        }
+    } else if (params->mipmaps) {
+        LOGD("Trilinear filtering disabled (not an OpenGL renderer)");
     }
 
-    SDL_Surface *icon = read_xpm(icon_xpm);
+    SDL_Surface *icon = scrcpy_icon_load();
     if (icon) {
         SDL_SetWindowIcon(screen->window, icon);
-        SDL_FreeSurface(icon);
+        scrcpy_icon_destroy(icon);
     } else {
         LOGW("Could not load icon");
     }
 
-    LOGI("Initial texture: %" PRIu16 "x%" PRIu16, frame_size.width,
+    LOGI("Initial texture: %" PRIu16 "x%" PRIu16, params->frame_size.width,
-                                                  frame_size.height);
+                                                  params->frame_size.height);
-    screen->texture = create_texture(screen->renderer, frame_size);
+    screen->texture = create_texture(screen);
     if (!screen->texture) {
         LOGC("Could not create texture: %s", SDL_GetError());
-        screen_destroy(screen);
+        goto error_destroy_renderer;
-        return false;
     }
 
+    screen->frame = av_frame_alloc();
+    if (!screen->frame) {
+        LOGC("Could not create screen frame");
+        goto error_destroy_texture;
+    }
+
+    // Reset the window size to trigger a SIZE_CHANGED event, to workaround
+    // HiDPI issues with some SDL renderers when several displays having
+    // different HiDPI scaling are connected
+    SDL_SetWindowSize(screen->window, window_size.width, window_size.height);
+
+    screen_update_content_rect(screen);
+
+    if (params->fullscreen) {
+        screen_switch_fullscreen(screen);
+    }
+
+#ifdef CONTINUOUS_RESIZING_WORKAROUND
+    SDL_AddEventWatch(event_watcher, screen);
+#endif
+
+    static const struct sc_frame_sink_ops ops = {
+        .open = screen_frame_sink_open,
+        .close = screen_frame_sink_close,
+        .push = screen_frame_sink_push,
+    };
+
+    screen->frame_sink.ops = &ops;
+
+#ifndef NDEBUG
+    screen->open = false;
+#endif
+
     return true;
+
+error_destroy_texture:
+    SDL_DestroyTexture(screen->texture);
+error_destroy_renderer:
+    SDL_DestroyRenderer(screen->renderer);
+error_destroy_window:
+    SDL_DestroyWindow(screen->window);
+error_destroy_fps_counter:
+    fps_counter_destroy(&screen->fps_counter);
+error_stop_and_join_video_buffer:
+    sc_video_buffer_stop(&screen->vb);
+    sc_video_buffer_join(&screen->vb);
+error_destroy_video_buffer:
+    sc_video_buffer_destroy(&screen->vb);
+
+    return false;
 }
 
-void
+static void
 screen_show_window(struct screen *screen) {
     SDL_ShowWindow(screen->window);
 }
 
+void
+screen_hide_window(struct screen *screen) {
+    SDL_HideWindow(screen->window);
+}
+
+void
+screen_interrupt(struct screen *screen) {
+    sc_video_buffer_stop(&screen->vb);
+    fps_counter_interrupt(&screen->fps_counter);
+}
+
+void
+screen_join(struct screen *screen) {
+    sc_video_buffer_join(&screen->vb);
+    fps_counter_join(&screen->fps_counter);
+}
+
 void
 screen_destroy(struct screen *screen) {
-    if (screen->texture) {
+#ifndef NDEBUG
-        SDL_DestroyTexture(screen->texture);
+    assert(!screen->open);
+#endif
+    av_frame_free(&screen->frame);
+    SDL_DestroyTexture(screen->texture);
+    SDL_DestroyRenderer(screen->renderer);
+    SDL_DestroyWindow(screen->window);
+    fps_counter_destroy(&screen->fps_counter);
+    sc_video_buffer_destroy(&screen->vb);
+}
+
+static void
+resize_for_content(struct screen *screen, struct sc_size old_content_size,
+                   struct sc_size new_content_size) {
+    struct sc_size window_size = get_window_size(screen);
+    struct sc_size target_size = {
+        .width = (uint32_t) window_size.width * new_content_size.width
+                / old_content_size.width,
+        .height = (uint32_t) window_size.height * new_content_size.height
+                / old_content_size.height,
+    };
+    target_size = get_optimal_size(target_size, new_content_size);
+    set_window_size(screen, target_size);
+}
+
+static void
+set_content_size(struct screen *screen, struct sc_size new_content_size) {
+    if (!screen->fullscreen && !screen->maximized) {
+        resize_for_content(screen, screen->content_size, new_content_size);
+    } else if (!screen->resize_pending) {
+        // Store the windowed size to be able to compute the optimal size once
+        // fullscreen and maximized are disabled
+        screen->windowed_content_size = screen->content_size;
+        screen->resize_pending = true;
     }
-    if (screen->renderer) {
+
-        SDL_DestroyRenderer(screen->renderer);
+    screen->content_size = new_content_size;
+}
+
+static void
+apply_pending_resize(struct screen *screen) {
+    assert(!screen->fullscreen);
+    assert(!screen->maximized);
+    if (screen->resize_pending) {
+        resize_for_content(screen, screen->windowed_content_size,
+                                   screen->content_size);
+        screen->resize_pending = false;
     }
-    if (screen->window) {
+}
-        SDL_DestroyWindow(screen->window);
+
+void
+screen_set_rotation(struct screen *screen, unsigned rotation) {
+    assert(rotation < 4);
+    if (rotation == screen->rotation) {
+        return;
     }
+
+    struct sc_size new_content_size =
+        get_rotated_size(screen->frame_size, rotation);
+
+    set_content_size(screen, new_content_size);
+
+    screen->rotation = rotation;
+    LOGI("Display rotation set to %u", rotation);
+
+    screen_render(screen, true);
 }
 
 // recreate the texture and resize the window if the frame size has changed
 static bool
-prepare_for_frame(struct screen *screen, struct size new_frame_size) {
+prepare_for_frame(struct screen *screen, struct sc_size new_frame_size) {
     if (screen->frame_size.width != new_frame_size.width
             || screen->frame_size.height != new_frame_size.height) {
-        if (SDL_RenderSetLogicalSize(screen->renderer, new_frame_size.width,
-                                     new_frame_size.height)) {
-            LOGE("Could not set renderer logical size: %s", SDL_GetError());
-            return false;
-        }
-
         // frame dimension changed, destroy texture
         SDL_DestroyTexture(screen->texture);
 
-        struct size current_size = get_window_size(screen);
-        struct size target_size = {
-            (uint32_t) current_size.width * new_frame_size.width
-                    / screen->frame_size.width,
-            (uint32_t) current_size.height * new_frame_size.height
-                    / screen->frame_size.height,
-        };
-        target_size = get_optimal_size(target_size, new_frame_size);
-        set_window_size(screen, target_size);
-
         screen->frame_size = new_frame_size;
 
+        struct sc_size new_content_size =
+            get_rotated_size(new_frame_size, screen->rotation);
+        set_content_size(screen, new_content_size);
+
+        screen_update_content_rect(screen);
+
         LOGI("New texture: %" PRIu16 "x%" PRIu16,
                      screen->frame_size.width, screen->frame_size.height);
-        screen->texture = create_texture(screen->renderer, new_frame_size);
+        screen->texture = create_texture(screen);
         if (!screen->texture) {
             LOGC("Could not create texture: %s", SDL_GetError());
             return false;
@@ -259,37 +616,68 @@ update_texture(struct screen *screen, const AVFrame *frame) {
             frame->data[0], frame->linesize[0],
             frame->data[1], frame->linesize[1],
             frame->data[2], frame->linesize[2]);
+
+    if (screen->mipmaps) {
+        SDL_GL_BindTexture(screen->texture, NULL, NULL);
+        screen->gl.GenerateMipmap(GL_TEXTURE_2D);
+        SDL_GL_UnbindTexture(screen->texture);
+    }
 }
 
-bool
+static bool
-screen_update_frame(struct screen *screen, struct video_buffer *vb) {
+screen_update_frame(struct screen *screen) {
-    mutex_lock(vb->mutex);
+    av_frame_unref(screen->frame);
-    const AVFrame *frame = video_buffer_consume_rendered_frame(vb);
+    sc_video_buffer_consume(&screen->vb, screen->frame);
-    struct size new_frame_size = {frame->width, frame->height};
+    AVFrame *frame = screen->frame;
+
+    fps_counter_add_rendered_frame(&screen->fps_counter);
+
+    struct sc_size new_frame_size = {frame->width, frame->height};
     if (!prepare_for_frame(screen, new_frame_size)) {
-        mutex_unlock(vb->mutex);
         return false;
     }
     update_texture(screen, frame);
-    mutex_unlock(vb->mutex);
 
-    screen_render(screen);
+    screen_render(screen, false);
     return true;
 }
 
 void
-screen_render(struct screen *screen) {
+screen_render(struct screen *screen, bool update_content_rect) {
+    if (update_content_rect) {
+        screen_update_content_rect(screen);
+    }
+
     SDL_RenderClear(screen->renderer);
-    SDL_RenderCopy(screen->renderer, screen->texture, NULL, NULL);
+    if (screen->rotation == 0) {
+        SDL_RenderCopy(screen->renderer, screen->texture, NULL, &screen->rect);
+    } else {
+        // rotation in RenderCopyEx() is clockwise, while screen->rotation is
+        // counterclockwise (to be consistent with --lock-video-orientation)
+        int cw_rotation = (4 - screen->rotation) % 4;
+        double angle = 90 * cw_rotation;
+
+        SDL_Rect *dstrect = NULL;
+        SDL_Rect rect;
+        if (screen->rotation & 1) {
+            rect.x = screen->rect.x + (screen->rect.w - screen->rect.h) / 2;
+            rect.y = screen->rect.y + (screen->rect.h - screen->rect.w) / 2;
+            rect.w = screen->rect.h;
+            rect.h = screen->rect.w;
+            dstrect = &rect;
+        } else {
+            assert(screen->rotation == 2);
+            dstrect = &screen->rect;
+        }
+
+        SDL_RenderCopyEx(screen->renderer, screen->texture, NULL, dstrect,
+                         angle, NULL, 0);
+    }
     SDL_RenderPresent(screen->renderer);
 }
 
 void
 screen_switch_fullscreen(struct screen *screen) {
-    if (!screen->fullscreen) {
-        // going to fullscreen, store the current windowed window size
-        screen->windowed_window_size = get_native_window_size(screen->window);
-    }
     uint32_t new_mode = screen->fullscreen ? 0 : SDL_WINDOW_FULLSCREEN_DESKTOP;
     if (SDL_SetWindowFullscreen(screen->window, new_mode)) {
         LOGW("Could not switch fullscreen mode: %s", SDL_GetError());
@@ -297,32 +685,156 @@ screen_switch_fullscreen(struct screen *screen) {
     }
 
     screen->fullscreen = !screen->fullscreen;
-    if (!screen->fullscreen) {
+    if (!screen->fullscreen && !screen->maximized) {
-        // fullscreen disabled, restore expected windowed window size
+        apply_pending_resize(screen);
-        SDL_SetWindowSize(screen->window, screen->windowed_window_size.width,
-                          screen->windowed_window_size.height);
     }
 
     LOGD("Switched to %s mode", screen->fullscreen ? "fullscreen" : "windowed");
-    screen_render(screen);
+    screen_render(screen, true);
 }
 
 void
 screen_resize_to_fit(struct screen *screen) {
-    if (!screen->fullscreen) {
+    if (screen->fullscreen || screen->maximized) {
-        struct size optimal_size = get_optimal_window_size(screen,
+        return;
-                                                           screen->frame_size);
-        SDL_SetWindowSize(screen->window, optimal_size.width,
-                          optimal_size.height);
-        LOGD("Resized to optimal size");
     }
+
+    struct sc_point point = get_window_position(screen);
+    struct sc_size window_size = get_window_size(screen);
+
+    struct sc_size optimal_size =
+        get_optimal_size(window_size, screen->content_size);
+
+    // Center the window related to the device screen
+    assert(optimal_size.width <= window_size.width);
+    assert(optimal_size.height <= window_size.height);
+    uint32_t new_x = point.x + (window_size.width - optimal_size.width) / 2;
+    uint32_t new_y = point.y + (window_size.height - optimal_size.height) / 2;
+
+    SDL_SetWindowSize(screen->window, optimal_size.width, optimal_size.height);
+    SDL_SetWindowPosition(screen->window, new_x, new_y);
+    LOGD("Resized to optimal size: %ux%u", optimal_size.width,
+                                           optimal_size.height);
 }
 
 void
 screen_resize_to_pixel_perfect(struct screen *screen) {
-    if (!screen->fullscreen) {
+    if (screen->fullscreen) {
-        SDL_SetWindowSize(screen->window, screen->frame_size.width,
+        return;
-                          screen->frame_size.height);
-        LOGD("Resized to pixel-perfect");
     }
+
+    if (screen->maximized) {
+        SDL_RestoreWindow(screen->window);
+        screen->maximized = false;
+    }
+
+    struct sc_size content_size = screen->content_size;
+    SDL_SetWindowSize(screen->window, content_size.width, content_size.height);
+    LOGD("Resized to pixel-perfect: %ux%u", content_size.width,
+                                            content_size.height);
+}
+
+bool
+screen_handle_event(struct screen *screen, SDL_Event *event) {
+    switch (event->type) {
+        case EVENT_NEW_FRAME:
+            if (!screen->has_frame) {
+                screen->has_frame = true;
+                // this is the very first frame, show the window
+                screen_show_window(screen);
+            }
+            bool ok = screen_update_frame(screen);
+            if (!ok) {
+                LOGW("Frame update failed\n");
+            }
+            return true;
+        case SDL_WINDOWEVENT:
+            if (!screen->has_frame) {
+                // Do nothing
+                return true;
+            }
+            switch (event->window.event) {
+                case SDL_WINDOWEVENT_EXPOSED:
+                    screen_render(screen, true);
+                    break;
+                case SDL_WINDOWEVENT_SIZE_CHANGED:
+                    screen_render(screen, true);
+                    break;
+                case SDL_WINDOWEVENT_MAXIMIZED:
+                    screen->maximized = true;
+                    break;
+                case SDL_WINDOWEVENT_RESTORED:
+                    if (screen->fullscreen) {
+                        // On Windows, in maximized+fullscreen, disabling
+                        // fullscreen mode unexpectedly triggers the "restored"
+                        // then "maximized" events, leaving the window in a
+                        // weird state (maximized according to the events, but
+                        // not maximized visually).
+                        break;
+                    }
+                    screen->maximized = false;
+                    apply_pending_resize(screen);
+                    screen_render(screen, true);
+                    break;
+            }
+            return true;
+    }
+
+    return false;
+}
+
+struct sc_point
+screen_convert_drawable_to_frame_coords(struct screen *screen,
+                                        int32_t x, int32_t y) {
+    unsigned rotation = screen->rotation;
+    assert(rotation < 4);
+
+    int32_t w = screen->content_size.width;
+    int32_t h = screen->content_size.height;
+
+
+    x = (int64_t) (x - screen->rect.x) * w / screen->rect.w;
+    y = (int64_t) (y - screen->rect.y) * h / screen->rect.h;
+
+    // rotate
+    struct sc_point result;
+    switch (rotation) {
+        case 0:
+            result.x = x;
+            result.y = y;
+            break;
+        case 1:
+            result.x = h - y;
+            result.y = x;
+            break;
+        case 2:
+            result.x = w - x;
+            result.y = h - y;
+            break;
+        default:
+            assert(rotation == 3);
+            result.x = y;
+            result.y = w - x;
+            break;
+    }
+    return result;
+}
+
+struct sc_point
+screen_convert_window_to_frame_coords(struct screen *screen,
+                                      int32_t x, int32_t y) {
+    screen_hidpi_scale_coords(screen, &x, &y);
+    return screen_convert_drawable_to_frame_coords(screen, x, y);
+}
+
+void
+screen_hidpi_scale_coords(struct screen *screen, int32_t *x, int32_t *y) {
+    // take the HiDPI scaling (dw/ww and dh/wh) into account
+    int ww, wh, dw, dh;
+    SDL_GetWindowSize(screen->window, &ww, &wh);
+    SDL_GL_GetDrawableSize(screen->window, &dw, &dh);
+
+    // scale for HiDPI (64 bits for intermediate multiplications)
+    *x = (int64_t) *x * dw / ww;
+    *y = (int64_t) *y * dh / wh;
 }

app/src/screen.h

@@ -1,67 +1,104 @@
 #ifndef SCREEN_H
 #define SCREEN_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <SDL2/SDL.h>
 #include <libavformat/avformat.h>
 
-#include "common.h"
+#include "coords.h"
-
+#include "fps_counter.h"
-struct video_buffer;
+#include "opengl.h"
+#include "trait/frame_sink.h"
+#include "video_buffer.h"
 
 struct screen {
+    struct sc_frame_sink frame_sink; // frame sink trait
+
+#ifndef NDEBUG
+    bool open; // track the open/close state to assert correct behavior
+#endif
+
+    struct sc_video_buffer vb;
+    struct fps_counter fps_counter;
+
     SDL_Window *window;
     SDL_Renderer *renderer;
     SDL_Texture *texture;
-    struct size frame_size;
+    struct sc_opengl gl;
-    //used only in fullscreen mode to know the windowed window size
+    struct sc_size frame_size;
-    struct size windowed_window_size;
+    struct sc_size content_size; // rotated frame_size
+
+    bool resize_pending; // resize requested while fullscreen or maximized
+    // The content size the last time the window was not maximized or
+    // fullscreen (meaningful only when resize_pending is true)
+    struct sc_size windowed_content_size;
+
+    // client rotation: 0, 1, 2 or 3 (x90 degrees counterclockwise)
+    unsigned rotation;
+    // rectangle of the content (excluding black borders)
+    struct SDL_Rect rect;
     bool has_frame;
     bool fullscreen;
-    bool no_window;
+    bool maximized;
+    bool mipmaps;
+
+    bool event_failed; // in case SDL_PushEvent() returned an error
+
+    AVFrame *frame;
 };
 
-#define SCREEN_INITIALIZER {  \
+struct screen_params {
-    .window = NULL,           \
+    const char *window_title;
-    .renderer = NULL,         \
+    struct sc_size frame_size;
-    .texture = NULL,          \
+    bool always_on_top;
-    .frame_size = {           \
-        .width = 0,           \
-        .height = 0,          \
-    },                        \
-    .windowed_window_size = { \
-        .width = 0,           \
-        .height = 0,          \
-    },                        \
-    .has_frame = false,   \
-    .fullscreen = false,  \
-    .no_window = false,   \
-}
 
-// initialize default values
+    int16_t window_x;
-void
+    int16_t window_y;
-screen_init(struct screen *screen);
+    uint16_t window_width;  // accepts SC_WINDOW_POSITION_UNDEFINED
+    uint16_t window_height; // accepts SC_WINDOW_POSITION_UNDEFINED
+
+    bool window_borderless;
+
+    uint8_t rotation;
+    bool mipmaps;
+
+    bool fullscreen;
+
+    sc_tick buffering_time;
+};
 
 // initialize screen, create window, renderer and texture (window is hidden)
 bool
-screen_init_rendering(struct screen *screen, const char *window_title,
+screen_init(struct screen *screen, const struct screen_params *params);
-                      struct size frame_size, bool always_on_top);
 
-// show the window
+// request to interrupt any inner thread
+// must be called before screen_join()
 void
-screen_show_window(struct screen *screen);
+screen_interrupt(struct screen *screen);
+
+// join any inner thread
+void
+screen_join(struct screen *screen);
 
 // destroy window, renderer and texture (if any)
 void
 screen_destroy(struct screen *screen);
 
-// resize if necessary and write the rendered frame into the texture
+// hide the window
-bool
+//
-screen_update_frame(struct screen *screen, struct video_buffer *vb);
+// It is used to hide the window immediately on closing without waiting for
+// screen_destroy()
+void
+screen_hide_window(struct screen *screen);
 
 // render the texture to the renderer
+//
+// Set the update_content_rect flag if the window or content size may have
+// changed, so that the content rectangle is recomputed
 void
-screen_render(struct screen *screen);
+screen_render(struct screen *screen, bool update_content_rect);
 
 // switch the fullscreen mode
 void
@@ -75,4 +112,31 @@ screen_resize_to_fit(struct screen *screen);
 void
 screen_resize_to_pixel_perfect(struct screen *screen);
 
+// set the display rotation (0, 1, 2 or 3, x90 degrees counterclockwise)
+void
+screen_set_rotation(struct screen *screen, unsigned rotation);
+
+// react to SDL events
+bool
+screen_handle_event(struct screen *screen, SDL_Event *event);
+
+// convert point from window coordinates to frame coordinates
+// x and y are expressed in pixels
+struct sc_point
+screen_convert_window_to_frame_coords(struct screen *screen,
+                                      int32_t x, int32_t y);
+
+// convert point from drawable coordinates to frame coordinates
+// x and y are expressed in pixels
+struct sc_point
+screen_convert_drawable_to_frame_coords(struct screen *screen,
+                                        int32_t x, int32_t y);
+
+// Convert coordinates from window to drawable.
+// Events are expressed in window coordinates, but content is expressed in
+// drawable coordinates. They are the same if HiDPI scaling is 1, but differ
+// otherwise.
+void
+screen_hidpi_scale_coords(struct screen *screen, int32_t *x, int32_t *y);
+
 #endif

app/src/server.c

@@ -1,109 +1,105 @@
 #include "server.h"
 
+#include <assert.h>
 #include <errno.h>
 #include <inttypes.h>
-#include <libgen.h>
 #include <stdio.h>
-#include <SDL2/SDL_assert.h>
 #include <SDL2/SDL_timer.h>
+#include <SDL2/SDL_platform.h>
 
-#include "config.h"
+#include "adb.h"
-#include "command.h"
+#include "util/file.h"
-#include "log.h"
+#include "util/log.h"
-#include "net.h"
+#include "util/net.h"
+#include "util/str_util.h"
 
 #define SOCKET_NAME "scrcpy"
-#define SERVER_FILENAME "scrcpy-server.jar"
+#define SERVER_FILENAME "scrcpy-server"
 
 #define DEFAULT_SERVER_PATH PREFIX "/share/scrcpy/" SERVER_FILENAME
-#define DEVICE_SERVER_PATH "/data/local/tmp/" SERVER_FILENAME
+#define DEVICE_SERVER_PATH "/data/local/tmp/scrcpy-server.jar"
 
-static const char *
+static char *
 get_server_path(void) {
+#ifdef __WINDOWS__
+    const wchar_t *server_path_env = _wgetenv(L"SCRCPY_SERVER_PATH");
+#else
     const char *server_path_env = getenv("SCRCPY_SERVER_PATH");
+#endif
     if (server_path_env) {
-        LOGD("Using SCRCPY_SERVER_PATH: %s", server_path_env);
         // if the envvar is set, use it
-        return server_path_env;
+#ifdef __WINDOWS__
+        char *server_path = utf8_from_wide_char(server_path_env);
+#else
+        char *server_path = strdup(server_path_env);
+#endif
+        if (!server_path) {
+            LOGE("Could not allocate memory");
+            return NULL;
+        }
+        LOGD("Using SCRCPY_SERVER_PATH: %s", server_path);
+        return server_path;
     }
 
 #ifndef PORTABLE
     LOGD("Using server: " DEFAULT_SERVER_PATH);
-    // the absolute path is hardcoded
+    char *server_path = strdup(DEFAULT_SERVER_PATH);
-    return DEFAULT_SERVER_PATH;
-#else
-    // use scrcpy-server.jar in the same directory as the executable
-    char *executable_path = get_executable_path();
-    if (!executable_path) {
-        LOGE("Could not get executable path, "
-             "using " SERVER_FILENAME " from current directory");
-        // not found, use current directory
-        return SERVER_FILENAME;
-    }
-    char *dir = dirname(executable_path);
-    size_t dirlen = strlen(dir);
-
-    // sizeof(SERVER_FILENAME) gives statically the size including the null byte
-    size_t len = dirlen + 1 + sizeof(SERVER_FILENAME);
-    char *server_path = SDL_malloc(len);
     if (!server_path) {
-        LOGE("Could not alloc server path string, "
+        LOGE("Could not allocate memory");
-             "using " SERVER_FILENAME " from current directory");
+        return NULL;
-        SDL_free(executable_path);
+    }
-        return SERVER_FILENAME;
+#else
+    char *server_path = sc_file_get_local_path(SERVER_FILENAME);
+    if (!server_path) {
+        LOGE("Could not get local file path, "
+             "using " SERVER_FILENAME " from current directory");
+        return strdup(SERVER_FILENAME);
     }
-
-    memcpy(server_path, dir, dirlen);
-    server_path[dirlen] = PATH_SEPARATOR;
-    memcpy(&server_path[dirlen + 1], SERVER_FILENAME, sizeof(SERVER_FILENAME));
-    // the final null byte has been copied with SERVER_FILENAME
-
-    SDL_free(executable_path);
 
     LOGD("Using server (portable): %s", server_path);
-    return server_path;
 #endif
+
+    return server_path;
 }
 
 static bool
 push_server(const char *serial) {
-    process_t process = adb_push(serial, get_server_path(), DEVICE_SERVER_PATH);
+    char *server_path = get_server_path();
-    return process_check_success(process, "adb push");
+    if (!server_path) {
+        return false;
+    }
+    if (!sc_file_is_regular(server_path)) {
+        LOGE("'%s' does not exist or is not a regular file\n", server_path);
+        free(server_path);
+        return false;
+    }
+    sc_pid pid = adb_push(serial, server_path, DEVICE_SERVER_PATH);
+    free(server_path);
+    return sc_process_check_success(pid, "adb push", true);
 }
 
 static bool
 enable_tunnel_reverse(const char *serial, uint16_t local_port) {
-    process_t process = adb_reverse(serial, SOCKET_NAME, local_port);
+    sc_pid pid = adb_reverse(serial, SOCKET_NAME, local_port);
-    return process_check_success(process, "adb reverse");
+    return sc_process_check_success(pid, "adb reverse", true);
 }
 
 static bool
 disable_tunnel_reverse(const char *serial) {
-    process_t process = adb_reverse_remove(serial, SOCKET_NAME);
+    sc_pid pid = adb_reverse_remove(serial, SOCKET_NAME);
-    return process_check_success(process, "adb reverse --remove");
+    return sc_process_check_success(pid, "adb reverse --remove", true);
 }
 
 static bool
 enable_tunnel_forward(const char *serial, uint16_t local_port) {
-    process_t process = adb_forward(serial, local_port, SOCKET_NAME);
+    sc_pid pid = adb_forward(serial, local_port, SOCKET_NAME);
-    return process_check_success(process, "adb forward");
+    return sc_process_check_success(pid, "adb forward", true);
 }
 
 static bool
 disable_tunnel_forward(const char *serial, uint16_t local_port) {
-    process_t process = adb_forward_remove(serial, local_port);
+    sc_pid pid = adb_forward_remove(serial, local_port);
-    return process_check_success(process, "adb forward --remove");
+    return sc_process_check_success(pid, "adb forward --remove", true);
-}
-
-static bool
-enable_tunnel(struct server *server) {
-    if (enable_tunnel_reverse(server->serial, server->local_port)) {
-        return true;
-    }
-
-    LOGW("'adb reverse' failed, fallback to 'adb forward'");
-    server->tunnel_forward = true;
-    return enable_tunnel_forward(server->serial, server->local_port);
 }
 
 static bool
@@ -114,40 +110,191 @@ disable_tunnel(struct server *server) {
     return disable_tunnel_reverse(server->serial);
 }
 
-static process_t
+static sc_socket
+listen_on_port(uint16_t port) {
+#define IPV4_LOCALHOST 0x7F000001
+    return net_listen(IPV4_LOCALHOST, port, 1);
+}
+
+static bool
+enable_tunnel_reverse_any_port(struct server *server,
+                               struct sc_port_range port_range) {
+    uint16_t port = port_range.first;
+    for (;;) {
+        if (!enable_tunnel_reverse(server->serial, port)) {
+            // the command itself failed, it will fail on any port
+            return false;
+        }
+
+        // At the application level, the device part is "the server" because it
+        // serves video stream and control. However, at the network level, the
+        // client listens and the server connects to the client. That way, the
+        // client can listen before starting the server app, so there is no
+        // need to try to connect until the server socket is listening on the
+        // device.
+        server->server_socket = listen_on_port(port);
+        if (server->server_socket != SC_INVALID_SOCKET) {
+            // success
+            server->local_port = port;
+            return true;
+        }
+
+        // failure, disable tunnel and try another port
+        if (!disable_tunnel_reverse(server->serial)) {
+            LOGW("Could not remove reverse tunnel on port %" PRIu16, port);
+        }
+
+        // check before incrementing to avoid overflow on port 65535
+        if (port < port_range.last) {
+            LOGW("Could not listen on port %" PRIu16", retrying on %" PRIu16,
+                 port, (uint16_t) (port + 1));
+            port++;
+            continue;
+        }
+
+        if (port_range.first == port_range.last) {
+            LOGE("Could not listen on port %" PRIu16, port_range.first);
+        } else {
+            LOGE("Could not listen on any port in range %" PRIu16 ":%" PRIu16,
+                 port_range.first, port_range.last);
+        }
+        return false;
+    }
+}
+
+static bool
+enable_tunnel_forward_any_port(struct server *server,
+                               struct sc_port_range port_range) {
+    server->tunnel_forward = true;
+    uint16_t port = port_range.first;
+    for (;;) {
+        if (enable_tunnel_forward(server->serial, port)) {
+            // success
+            server->local_port = port;
+            return true;
+        }
+
+        if (port < port_range.last) {
+            LOGW("Could not forward port %" PRIu16", retrying on %" PRIu16,
+                 port, (uint16_t) (port + 1));
+            port++;
+            continue;
+        }
+
+        if (port_range.first == port_range.last) {
+            LOGE("Could not forward port %" PRIu16, port_range.first);
+        } else {
+            LOGE("Could not forward any port in range %" PRIu16 ":%" PRIu16,
+                 port_range.first, port_range.last);
+        }
+        return false;
+    }
+}
+
+static bool
+enable_tunnel_any_port(struct server *server, struct sc_port_range port_range,
+                       bool force_adb_forward) {
+    if (!force_adb_forward) {
+        // Attempt to use "adb reverse"
+        if (enable_tunnel_reverse_any_port(server, port_range)) {
+            return true;
+        }
+
+        // if "adb reverse" does not work (e.g. over "adb connect"), it
+        // fallbacks to "adb forward", so the app socket is the client
+
+        LOGW("'adb reverse' failed, fallback to 'adb forward'");
+    }
+
+    return enable_tunnel_forward_any_port(server, port_range);
+}
+
+static const char *
+log_level_to_server_string(enum sc_log_level level) {
+    switch (level) {
+        case SC_LOG_LEVEL_VERBOSE:
+            return "verbose";
+        case SC_LOG_LEVEL_DEBUG:
+            return "debug";
+        case SC_LOG_LEVEL_INFO:
+            return "info";
+        case SC_LOG_LEVEL_WARN:
+            return "warn";
+        case SC_LOG_LEVEL_ERROR:
+            return "error";
+        default:
+            assert(!"unexpected log level");
+            return "(unknown)";
+    }
+}
+
+static sc_pid
 execute_server(struct server *server, const struct server_params *params) {
     char max_size_string[6];
     char bit_rate_string[11];
+    char max_fps_string[6];
+    char lock_video_orientation_string[5];
+    char display_id_string[11];
     sprintf(max_size_string, "%"PRIu16, params->max_size);
     sprintf(bit_rate_string, "%"PRIu32, params->bit_rate);
+    sprintf(max_fps_string, "%"PRIu16, params->max_fps);
+    sprintf(lock_video_orientation_string, "%"PRIi8,
+            params->lock_video_orientation);
+    sprintf(display_id_string, "%"PRIu32, params->display_id);
     const char *const cmd[] = {
         "shell",
-        "CLASSPATH=/data/local/tmp/" SERVER_FILENAME,
+        "CLASSPATH=" DEVICE_SERVER_PATH,
         "app_process",
+#ifdef SERVER_DEBUGGER
+# define SERVER_DEBUGGER_PORT "5005"
+# ifdef SERVER_DEBUGGER_METHOD_NEW
+        /* Android 9 and above */
+        "-XjdwpProvider:internal -XjdwpOptions:transport=dt_socket,suspend=y,"
+        "server=y,address="
+# else
+        /* Android 8 and below */
+        "-agentlib:jdwp=transport=dt_socket,suspend=y,server=y,address="
+# endif
+            SERVER_DEBUGGER_PORT,
+#endif
         "/", // unused
         "com.genymobile.scrcpy.Server",
+        SCRCPY_VERSION,
+        log_level_to_server_string(params->log_level),
         max_size_string,
         bit_rate_string,
+        max_fps_string,
+        lock_video_orientation_string,
         server->tunnel_forward ? "true" : "false",
         params->crop ? params->crop : "-",
         "true", // always send frame meta (packet boundaries + timestamp)
         params->control ? "true" : "false",
+        display_id_string,
+        params->show_touches ? "true" : "false",
+        params->stay_awake ? "true" : "false",
+        params->codec_options ? params->codec_options : "-",
+        params->encoder_name ? params->encoder_name : "-",
+        params->power_off_on_close ? "true" : "false",
     };
-    return adb_execute(server->serial, cmd, sizeof(cmd) / sizeof(cmd[0]));
+#ifdef SERVER_DEBUGGER
+    LOGI("Server debugger waiting for a client on device port "
+         SERVER_DEBUGGER_PORT "...");
+    // From the computer, run
+    //     adb forward tcp:5005 tcp:5005
+    // Then, from Android Studio: Run > Debug > Edit configurations...
+    // On the left, click on '+', "Remote", with:
+    //     Host: localhost
+    //     Port: 5005
+    // Then click on "Debug"
+#endif
+    return adb_execute(server->serial, cmd, ARRAY_LEN(cmd));
 }
 
-#define IPV4_LOCALHOST 0x7F000001
+static sc_socket
-
-static socket_t
-listen_on_port(uint16_t port) {
-    return net_listen(IPV4_LOCALHOST, port, 1);
-}
-
-static socket_t
 connect_and_read_byte(uint16_t port) {
-    socket_t socket = net_connect(IPV4_LOCALHOST, port);
+    sc_socket socket = net_connect(IPV4_LOCALHOST, port);
-    if (socket == INVALID_SOCKET) {
+    if (socket == SC_INVALID_SOCKET) {
-        return INVALID_SOCKET;
+        return SC_INVALID_SOCKET;
     }
 
     char byte;
@@ -156,17 +303,17 @@ connect_and_read_byte(uint16_t port) {
     if (net_recv(socket, &byte, 1) != 1) {
         // the server is not listening yet behind the adb tunnel
         net_close(socket);
-        return INVALID_SOCKET;
+        return SC_INVALID_SOCKET;
     }
     return socket;
 }
 
-static socket_t
+static sc_socket
 connect_to_server(uint16_t port, uint32_t attempts, uint32_t delay) {
     do {
         LOGD("Remaining connection attempts: %d", (int) attempts);
-        socket_t socket = connect_and_read_byte(port);
+        sc_socket socket = connect_and_read_byte(port);
-        if (socket != INVALID_SOCKET) {
+        if (socket != SC_INVALID_SOCKET) {
             // it worked!
             return socket;
         }
@@ -174,112 +321,163 @@ connect_to_server(uint16_t port, uint32_t attempts, uint32_t delay) {
             SDL_Delay(delay);
         }
     } while (--attempts > 0);
-    return INVALID_SOCKET;
+    return SC_INVALID_SOCKET;
-}
-
-static void
-close_socket(socket_t *socket) {
-    SDL_assert(*socket != INVALID_SOCKET);
-    net_shutdown(*socket, SHUT_RDWR);
-    if (!net_close(*socket)) {
-        LOGW("Could not close socket");
-        return;
-    }
-    *socket = INVALID_SOCKET;
-}
-
-void
-server_init(struct server *server) {
-    *server = (struct server) SERVER_INITIALIZER;
 }
 
 bool
-server_start(struct server *server, const char *serial,
+server_init(struct server *server) {
-             const struct server_params *params) {
+    server->serial = NULL;
-    server->local_port = params->local_port;
+    server->process = SC_PROCESS_NONE;
 
-    if (serial) {
+    bool ok = sc_mutex_init(&server->mutex);
-        server->serial = SDL_strdup(serial);
+    if (!ok) {
+        return false;
+    }
+
+    ok = sc_cond_init(&server->process_terminated_cond);
+    if (!ok) {
+        sc_mutex_destroy(&server->mutex);
+        return false;
+    }
+
+    server->process_terminated = false;
+
+    server->server_socket = SC_INVALID_SOCKET;
+    server->video_socket = SC_INVALID_SOCKET;
+    server->control_socket = SC_INVALID_SOCKET;
+
+    server->local_port = 0;
+
+    server->tunnel_enabled = false;
+    server->tunnel_forward = false;
+
+    return true;
+}
+
+static int
+run_wait_server(void *data) {
+    struct server *server = data;
+    sc_process_wait(server->process, false); // ignore exit code
+
+    sc_mutex_lock(&server->mutex);
+    server->process_terminated = true;
+    sc_cond_signal(&server->process_terminated_cond);
+    sc_mutex_unlock(&server->mutex);
+
+    // no need for synchronization, server_socket is initialized before this
+    // thread was created
+    if (server->server_socket != SC_INVALID_SOCKET) {
+        // Unblock any accept()
+        net_interrupt(server->server_socket);
+    }
+
+    LOGD("Server terminated");
+    return 0;
+}
+
+bool
+server_start(struct server *server, const struct server_params *params) {
+    if (params->serial) {
+        server->serial = strdup(params->serial);
         if (!server->serial) {
             return false;
         }
     }
 
-    if (!push_server(serial)) {
+    if (!push_server(params->serial)) {
-        SDL_free(server->serial);
+        /* server->serial will be freed on server_destroy() */
         return false;
     }
 
-    if (!enable_tunnel(server)) {
+    if (!enable_tunnel_any_port(server, params->port_range,
-        SDL_free(server->serial);
+                                params->force_adb_forward)) {
         return false;
     }
 
-    // if "adb reverse" does not work (e.g. over "adb connect"), it fallbacks to
-    // "adb forward", so the app socket is the client
-    if (!server->tunnel_forward) {
-        // At the application level, the device part is "the server" because it
-        // serves video stream and control. However, at the network level, the
-        // client listens and the server connects to the client. That way, the
-        // client can listen before starting the server app, so there is no
-        // need to try to connect until the server socket is listening on the
-        // device.
-
-        server->server_socket = listen_on_port(params->local_port);
-        if (server->server_socket == INVALID_SOCKET) {
-            LOGE("Could not listen on port %" PRIu16, params->local_port);
-            disable_tunnel(server);
-            SDL_free(server->serial);
-            return false;
-        }
-    }
-
     // server will connect to our server socket
     server->process = execute_server(server, params);
+    if (server->process == SC_PROCESS_NONE) {
+        goto error;
+    }
 
-    if (server->process == PROCESS_NONE) {
+    // If the server process dies before connecting to the server socket, then
-        if (!server->tunnel_forward) {
+    // the client will be stuck forever on accept(). To avoid the problem, we
-            close_socket(&server->server_socket);
+    // must be able to wake up the accept() call when the server dies. To keep
-        }
+    // things simple and multiplatform, just spawn a new thread waiting for the
-        disable_tunnel(server);
+    // server process and calling shutdown()/close() on the server socket if
-        SDL_free(server->serial);
+    // necessary to wake up any accept() blocking call.
-        return false;
+    bool ok = sc_thread_create(&server->wait_server_thread, run_wait_server,
+                               "wait-server", server);
+    if (!ok) {
+        sc_process_terminate(server->process);
+        sc_process_wait(server->process, true); // ignore exit code
+        goto error;
     }
 
     server->tunnel_enabled = true;
 
     return true;
+
+error:
+    // The server socket (if any) will be closed on server_destroy()
+
+    disable_tunnel(server);
+
+    return false;
+}
+
+static bool
+device_read_info(sc_socket device_socket, struct server_info *info) {
+    unsigned char buf[DEVICE_NAME_FIELD_LENGTH + 4];
+    ssize_t r = net_recv_all(device_socket, buf, sizeof(buf));
+    if (r < DEVICE_NAME_FIELD_LENGTH + 4) {
+        LOGE("Could not retrieve device information");
+        return false;
+    }
+    // in case the client sends garbage
+    buf[DEVICE_NAME_FIELD_LENGTH - 1] = '\0';
+    memcpy(info->device_name, (char *) buf, sizeof(info->device_name));
+
+    info->frame_size.width = (buf[DEVICE_NAME_FIELD_LENGTH] << 8)
+                           | buf[DEVICE_NAME_FIELD_LENGTH + 1];
+    info->frame_size.height = (buf[DEVICE_NAME_FIELD_LENGTH + 2] << 8)
+                            | buf[DEVICE_NAME_FIELD_LENGTH + 3];
+    return true;
 }
 
 bool
-server_connect_to(struct server *server) {
+server_connect_to(struct server *server, struct server_info *info) {
     if (!server->tunnel_forward) {
         server->video_socket = net_accept(server->server_socket);
-        if (server->video_socket == INVALID_SOCKET) {
+        if (server->video_socket == SC_INVALID_SOCKET) {
             return false;
         }
 
         server->control_socket = net_accept(server->server_socket);
-        if (server->control_socket == INVALID_SOCKET) {
+        if (server->control_socket == SC_INVALID_SOCKET) {
-            // the video_socket will be clean up on destroy
+            // the video_socket will be cleaned up on destroy
             return false;
         }
 
         // we don't need the server socket anymore
-        close_socket(&server->server_socket);
+        if (!net_close(server->server_socket)) {
+            LOGW("Could not close server socket on connect");
+        }
+        // Do not attempt to close it again on server_destroy()
+        server->server_socket = SC_INVALID_SOCKET;
     } else {
         uint32_t attempts = 100;
         uint32_t delay = 100; // ms
         server->video_socket =
             connect_to_server(server->local_port, attempts, delay);
-        if (server->video_socket == INVALID_SOCKET) {
+        if (server->video_socket == SC_INVALID_SOCKET) {
             return false;
         }
 
         // we know that the device is listening, we don't need several attempts
         server->control_socket =
             net_connect(IPV4_LOCALHOST, server->local_port);
-        if (server->control_socket == INVALID_SOCKET) {
+        if (server->control_socket == SC_INVALID_SOCKET) {
             return false;
         }
     }
@@ -288,37 +486,78 @@ server_connect_to(struct server *server) {
     disable_tunnel(server); // ignore failure
     server->tunnel_enabled = false;
 
-    return true;
+    // The sockets will be closed on stop if device_read_info() fails
+    return device_read_info(server->video_socket, info);
 }
 
 void
 server_stop(struct server *server) {
-    if (server->server_socket != INVALID_SOCKET) {
+    if (server->server_socket != SC_INVALID_SOCKET) {
-        close_socket(&server->server_socket);
+        if (!net_interrupt(server->server_socket)) {
+            LOGW("Could not interrupt server socket");
+        }
     }
-    if (server->video_socket != INVALID_SOCKET) {
+    if (server->video_socket != SC_INVALID_SOCKET) {
-        close_socket(&server->video_socket);
+        if (!net_interrupt(server->video_socket)) {
+            LOGW("Could not interrupt video socket");
+        }
     }
-    if (server->control_socket != INVALID_SOCKET) {
+    if (server->control_socket != SC_INVALID_SOCKET) {
-        close_socket(&server->control_socket);
+        if (!net_interrupt(server->control_socket)) {
+            LOGW("Could not interrupt control socket");
+        }
     }
 
-    SDL_assert(server->process != PROCESS_NONE);
+    assert(server->process != SC_PROCESS_NONE);
-
-    if (!cmd_terminate(server->process)) {
-        LOGW("Could not terminate server");
-    }
-
-    cmd_simple_wait(server->process, NULL); // ignore exit code
-    LOGD("Server terminated");
 
     if (server->tunnel_enabled) {
         // ignore failure
         disable_tunnel(server);
     }
+
+    // Give some delay for the server to terminate properly
+    sc_mutex_lock(&server->mutex);
+    bool signaled = false;
+    if (!server->process_terminated) {
+#define WATCHDOG_DELAY SC_TICK_FROM_SEC(1)
+        signaled = sc_cond_timedwait(&server->process_terminated_cond,
+                                     &server->mutex,
+                                     sc_tick_now() + WATCHDOG_DELAY);
+    }
+    sc_mutex_unlock(&server->mutex);
+
+    // After this delay, kill the server if it's not dead already.
+    // On some devices, closing the sockets is not sufficient to wake up the
+    // blocking calls while the device is asleep.
+    if (!signaled) {
+        // The process is terminated, but not reaped (closed) yet, so its PID
+        // is still valid.
+        LOGW("Killing the server...");
+        sc_process_terminate(server->process);
+    }
+
+    sc_thread_join(&server->wait_server_thread, NULL);
+    sc_process_close(server->process);
 }
 
 void
 server_destroy(struct server *server) {
-    SDL_free(server->serial);
+    if (server->server_socket != SC_INVALID_SOCKET) {
+        if (!net_close(server->server_socket)) {
+            LOGW("Could not close server socket");
+        }
+    }
+    if (server->video_socket != SC_INVALID_SOCKET) {
+        if (!net_close(server->video_socket)) {
+            LOGW("Could not close video socket");
+        }
+    }
+    if (server->control_socket != SC_INVALID_SOCKET) {
+        if (!net_close(server->control_socket)) {
+            LOGW("Could not close control socket");
+        }
+    }
+    free(server->serial);
+    sc_cond_destroy(&server->process_terminated_cond);
+    sc_mutex_destroy(&server->mutex);
 }

app/src/server.h

@@ -1,54 +1,72 @@
 #ifndef SERVER_H
 #define SERVER_H
 
+#include "common.h"
+
+#include <stdatomic.h>
 #include <stdbool.h>
 #include <stdint.h>
 
-#include "command.h"
+#include "adb.h"
-#include "net.h"
+#include "coords.h"
+#include "options.h"
+#include "util/log.h"
+#include "util/net.h"
+#include "util/thread.h"
+
+#define DEVICE_NAME_FIELD_LENGTH 64
+struct server_info {
+    char device_name[DEVICE_NAME_FIELD_LENGTH];
+    struct sc_size frame_size;
+};
 
 struct server {
     char *serial;
-    process_t process;
+    sc_pid process;
-    socket_t server_socket; // only used if !tunnel_forward
+    sc_thread wait_server_thread;
-    socket_t video_socket;
+
-    socket_t control_socket;
+    sc_mutex mutex;
-    uint16_t local_port;
+    sc_cond process_terminated_cond;
+    bool process_terminated;
+
+    sc_socket server_socket; // only used if !tunnel_forward
+    sc_socket video_socket;
+    sc_socket control_socket;
+    uint16_t local_port; // selected from port_range
     bool tunnel_enabled;
     bool tunnel_forward; // use "adb forward" instead of "adb reverse"
 };
 
-#define SERVER_INITIALIZER {          \
-    .serial = NULL,                   \
-    .process = PROCESS_NONE,          \
-    .server_socket = INVALID_SOCKET,  \
-    .video_socket = INVALID_SOCKET,   \
-    .control_socket = INVALID_SOCKET, \
-    .local_port = 0,                  \
-    .tunnel_enabled = false,          \
-    .tunnel_forward = false,          \
-}
-
 struct server_params {
+    const char *serial;
+    enum sc_log_level log_level;
     const char *crop;
-    uint16_t local_port;
+    const char *codec_options;
+    const char *encoder_name;
+    struct sc_port_range port_range;
     uint16_t max_size;
     uint32_t bit_rate;
+    uint16_t max_fps;
+    int8_t lock_video_orientation;
     bool control;
+    uint32_t display_id;
+    bool show_touches;
+    bool stay_awake;
+    bool force_adb_forward;
+    bool power_off_on_close;
 };
 
 // init default values
-void
+bool
 server_init(struct server *server);
 
 // push, enable tunnel et start the server
 bool
-server_start(struct server *server, const char *serial,
+server_start(struct server *server, const struct server_params *params);
-             const struct server_params *params);
 
 // block until the communication with the server is established
 bool
-server_connect_to(struct server *server);
+server_connect_to(struct server *server, struct server_info *info);
 
 // disconnect and kill the server process
 void

app/src/str_util.c

@@ -1,111 +0,0 @@
-#include "str_util.h"
-
-#include <stdlib.h>
-#include <string.h>
-
-#ifdef _WIN32
-# include <windows.h>
-# include <tchar.h>
-#endif
-
-#include <SDL2/SDL_stdinc.h>
-
-size_t
-xstrncpy(char *dest, const char *src, size_t n) {
-    size_t i;
-    for (i = 0; i < n - 1 && src[i] != '\0'; ++i)
-        dest[i] = src[i];
-    if (n)
-        dest[i] = '\0';
-    return src[i] == '\0' ? i : n;
-}
-
-size_t
-xstrjoin(char *dst, const char *const tokens[], char sep, size_t n) {
-    const char *const *remaining = tokens;
-    const char *token = *remaining++;
-    size_t i = 0;
-    while (token) {
-        if (i) {
-            dst[i++] = sep;
-            if (i == n)
-                goto truncated;
-        }
-        size_t w = xstrncpy(dst + i, token, n - i);
-        if (w >= n - i)
-            goto truncated;
-        i += w;
-        token = *remaining++;
-    }
-    return i;
-
-truncated:
-    dst[n - 1] = '\0';
-    return n;
-}
-
-char *
-strquote(const char *src) {
-    size_t len = strlen(src);
-    char *quoted = SDL_malloc(len + 3);
-    if (!quoted) {
-        return NULL;
-    }
-    memcpy(&quoted[1], src, len);
-    quoted[0] = '"';
-    quoted[len + 1] = '"';
-    quoted[len + 2] = '\0';
-    return quoted;
-}
-
-size_t
-utf8_truncation_index(const char *utf8, size_t max_len) {
-    size_t len = strlen(utf8);
-    if (len <= max_len) {
-        return len;
-    }
-    len = max_len;
-    // see UTF-8 encoding <https://en.wikipedia.org/wiki/UTF-8#Description>
-    while ((utf8[len] & 0x80) != 0 && (utf8[len] & 0xc0) != 0xc0) {
-        // the next byte is not the start of a new UTF-8 codepoint
-        // so if we would cut there, the character would be truncated
-        len--;
-    }
-    return len;
-}
-
-#ifdef _WIN32
-
-wchar_t *
-utf8_to_wide_char(const char *utf8) {
-    int len = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0);
-    if (!len) {
-        return NULL;
-    }
-
-    wchar_t *wide = SDL_malloc(len * sizeof(wchar_t));
-    if (!wide) {
-        return NULL;
-    }
-
-    MultiByteToWideChar(CP_UTF8, 0, utf8, -1, wide, len);
-    return wide;
-}
-
-char *
-utf8_from_wide_char(const wchar_t *ws) {
-    int len = WideCharToMultiByte(CP_UTF8, 0, ws, -1, NULL, 0, NULL, NULL);
-    if (!len) {
-        return NULL;
-    }
-
-    char *utf8 = SDL_malloc(len);
-    if (!utf8) {
-        return NULL;
-    }
-
-    WideCharToMultiByte(CP_UTF8, 0, ws, -1, utf8, len, NULL, NULL);
-    return utf8;
-}
-
-#endif

app/src/str_util.h

@@ -1,40 +0,0 @@
-#ifndef STRUTIL_H
-#define STRUTIL_H
-
-#include <stddef.h>
-
-// like strncpy, except:
-//  - it copies at most n-1 chars
-//  - the dest string is nul-terminated
-//  - it does not write useless bytes if strlen(src) < n
-//  - it returns the number of chars actually written (max n-1) if src has
-//    been copied completely, or n if src has been truncated
-size_t
-xstrncpy(char *dest, const char *src, size_t n);
-
-// join tokens by sep into dst
-// returns the number of chars actually written (max n-1) if no trucation
-// occurred, or n if truncated
-size_t
-xstrjoin(char *dst, const char *const tokens[], char sep, size_t n);
-
-// quote a string
-// returns the new allocated string, to be freed by the caller
-char *
-strquote(const char *src);
-
-// return the index to truncate a UTF-8 string at a valid position
-size_t
-utf8_truncation_index(const char *utf8, size_t max_len);
-
-#ifdef _WIN32
-// convert a UTF-8 string to a wchar_t string
-// returns the new allocated string, to be freed by the caller
-wchar_t *
-utf8_to_wide_char(const char *utf8);
-
-char *
-utf8_from_wide_char(const wchar_t *s);
-#endif
-
-#endif

app/src/stream.c

@@ -1,21 +1,15 @@
 #include "stream.h"
 
+#include <assert.h>
 #include <libavformat/avformat.h>
 #include <libavutil/time.h>
-#include <SDL2/SDL_assert.h>
-#include <SDL2/SDL_events.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
 #include <unistd.h>
 
-#include "compat.h"
-#include "config.h"
-#include "buffer_util.h"
 #include "decoder.h"
 #include "events.h"
-#include "lock_util.h"
-#include "log.h"
 #include "recorder.h"
+#include "util/buffer_util.h"
+#include "util/log.h"
 
 #define BUFSIZE 0x10000
 
@@ -44,7 +38,8 @@ stream_recv_packet(struct stream *stream, AVPacket *packet) {
 
     uint64_t pts = buffer_read64be(header);
     uint32_t len = buffer_read32be(&header[8]);
-    SDL_assert(len);
+    assert(pts == NO_PTS || (pts & 0x8000000000000000) == 0);
+    assert(len);
 
     if (av_new_packet(packet, len)) {
         LOGE("Could not allocate packet");
@@ -52,43 +47,22 @@ stream_recv_packet(struct stream *stream, AVPacket *packet) {
     }
 
     r = net_recv_all(stream->socket, packet->data, len);
-    if (r < len) {
+    if (r < 0 || ((uint32_t) r) < len) {
         av_packet_unref(packet);
         return false;
     }
 
-    packet->pts = pts != NO_PTS ? pts : AV_NOPTS_VALUE;
+    packet->pts = pts != NO_PTS ? (int64_t) pts : AV_NOPTS_VALUE;
 
     return true;
 }
 
-static void
-notify_stopped(void) {
-    SDL_Event stop_event;
-    stop_event.type = EVENT_STREAM_STOPPED;
-    SDL_PushEvent(&stop_event);
-}
-
 static bool
-process_config_packet(struct stream *stream, AVPacket *packet) {
+push_packet_to_sinks(struct stream *stream, const AVPacket *packet) {
-    if (stream->recorder && !recorder_push(stream->recorder, packet)) {
+    for (unsigned i = 0; i < stream->sink_count; ++i) {
-        LOGE("Could not send config packet to recorder");
+        struct sc_packet_sink *sink = stream->sinks[i];
-        return false;
+        if (!sink->ops->push(sink, packet)) {
-    }
+            LOGE("Could not send config packet to sink %d", i);
-    return true;
-}
-
-static bool
-process_frame(struct stream *stream, AVPacket *packet) {
-    if (stream->decoder && !decoder_push(stream->decoder, packet)) {
-        return false;
-    }
-
-    if (stream->recorder) {
-        packet->dts = packet->pts;
-
-        if (!recorder_push(stream->recorder, packet)) {
-            LOGE("Could not send packet to recorder");
             return false;
         }
     }
@@ -107,16 +81,19 @@ stream_parse(struct stream *stream, AVPacket *packet) {
                              AV_NOPTS_VALUE, AV_NOPTS_VALUE, -1);
 
     // PARSER_FLAG_COMPLETE_FRAMES is set
-    SDL_assert(r == in_len);
+    assert(r == in_len);
-    SDL_assert(out_len == in_len);
+    (void) r;
+    assert(out_len == in_len);
 
     if (stream->parser->key_frame == 1) {
         packet->flags |= AV_PKT_FLAG_KEY;
     }
 
-    bool ok = process_frame(stream, packet);
+    packet->dts = packet->pts;
+
+    bool ok = push_packet_to_sinks(stream, packet);
     if (!ok) {
-        LOGE("Could not process frame");
+        LOGE("Could not process packet");
         return false;
     }
 
@@ -127,39 +104,44 @@ static bool
 stream_push_packet(struct stream *stream, AVPacket *packet) {
     bool is_config = packet->pts == AV_NOPTS_VALUE;
 
-    // A config packet must not be decoded immetiately (it contains no
+    // A config packet must not be decoded immediately (it contains no
     // frame); instead, it must be concatenated with the future data packet.
-    if (stream->has_pending || is_config) {
+    if (stream->pending || is_config) {
         size_t offset;
-        if (stream->has_pending) {
+        if (stream->pending) {
-            offset = stream->pending.size;
+            offset = stream->pending->size;
-            if (av_grow_packet(&stream->pending, packet->size)) {
+            if (av_grow_packet(stream->pending, packet->size)) {
                 LOGE("Could not grow packet");
                 return false;
             }
         } else {
             offset = 0;
-            if (av_new_packet(&stream->pending, packet->size)) {
+            stream->pending = av_packet_alloc();
-                LOGE("Could not create packet");
+            if (!stream->pending) {
+                LOGE("Could not allocate packet");
+                return false;
+            }
+            if (av_new_packet(stream->pending, packet->size)) {
+                LOGE("Could not create packet");
+                av_packet_free(&stream->pending);
                 return false;
             }
-            stream->has_pending = true;
         }
 
-        memcpy(stream->pending.data + offset, packet->data, packet->size);
+        memcpy(stream->pending->data + offset, packet->data, packet->size);
 
         if (!is_config) {
             // prepare the concat packet to send to the decoder
-            stream->pending.pts = packet->pts;
+            stream->pending->pts = packet->pts;
-            stream->pending.dts = packet->dts;
+            stream->pending->dts = packet->dts;
-            stream->pending.flags = packet->flags;
+            stream->pending->flags = packet->flags;
-            packet = &stream->pending;
+            packet = stream->pending;
         }
     }
 
     if (is_config) {
         // config packet
-        bool ok = process_config_packet(stream, packet);
+        bool ok = push_packet_to_sinks(stream, packet);
         if (!ok) {
             return false;
         }
@@ -167,10 +149,9 @@ stream_push_packet(struct stream *stream, AVPacket *packet) {
         // data packet
         bool ok = stream_parse(stream, packet);
 
-        if (stream->has_pending) {
+        if (stream->pending) {
             // the pending packet must be discarded (consumed or error)
-            stream->has_pending = false;
+            av_packet_free(&stream->pending);
-            av_packet_unref(&stream->pending);
         }
 
         if (!ok) {
@@ -180,6 +161,33 @@ stream_push_packet(struct stream *stream, AVPacket *packet) {
     return true;
 }
 
+static void
+stream_close_first_sinks(struct stream *stream, unsigned count) {
+    while (count) {
+        struct sc_packet_sink *sink = stream->sinks[--count];
+        sink->ops->close(sink);
+    }
+}
+
+static inline void
+stream_close_sinks(struct stream *stream) {
+    stream_close_first_sinks(stream, stream->sink_count);
+}
+
+static bool
+stream_open_sinks(struct stream *stream, const AVCodec *codec) {
+    for (unsigned i = 0; i < stream->sink_count; ++i) {
+        struct sc_packet_sink *sink = stream->sinks[i];
+        if (!sink->ops->open(sink, codec)) {
+            LOGE("Could not open packet sink %d", i);
+            stream_close_first_sinks(stream, i);
+            return false;
+        }
+    }
+
+    return true;
+}
+
 static int
 run_stream(void *data) {
     struct stream *stream = data;
@@ -196,43 +204,36 @@ run_stream(void *data) {
         goto end;
     }
 
-    if (stream->decoder && !decoder_open(stream->decoder, codec)) {
+    if (!stream_open_sinks(stream, codec)) {
-        LOGE("Could not open decoder");
+        LOGE("Could not open stream sinks");
         goto finally_free_codec_ctx;
     }
 
-    if (stream->recorder) {
-        if (!recorder_open(stream->recorder, codec)) {
-            LOGE("Could not open recorder");
-            goto finally_close_decoder;
-        }
-
-        if (!recorder_start(stream->recorder)) {
-            LOGE("Could not start recorder");
-            goto finally_close_recorder;
-        }
-    }
-
     stream->parser = av_parser_init(AV_CODEC_ID_H264);
     if (!stream->parser) {
         LOGE("Could not initialize parser");
-        goto finally_stop_and_join_recorder;
+        goto finally_close_sinks;
     }
 
     // We must only pass complete frames to av_parser_parse2()!
     // It's more complicated, but this allows to reduce the latency by 1 frame!
     stream->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
 
+    AVPacket *packet = av_packet_alloc();
+    if (!packet) {
+        LOGE("Could not allocate packet");
+        goto finally_close_parser;
+    }
+
     for (;;) {
-        AVPacket packet;
+        bool ok = stream_recv_packet(stream, packet);
-        bool ok = stream_recv_packet(stream, &packet);
         if (!ok) {
             // end of stream
             break;
         }
 
-        ok = stream_push_packet(stream, &packet);
+        ok = stream_push_packet(stream, packet);
-        av_packet_unref(&packet);
+        av_packet_unref(packet);
         if (!ok) {
             // cannot process packet (error already logged)
             break;
@@ -241,61 +242,57 @@ run_stream(void *data) {
 
     LOGD("End of frames");
 
-    if (stream->has_pending) {
+    if (stream->pending) {
-        av_packet_unref(&stream->pending);
+        av_packet_free(&stream->pending);
     }
 
+    av_packet_free(&packet);
+finally_close_parser:
     av_parser_close(stream->parser);
-finally_stop_and_join_recorder:
+finally_close_sinks:
-    if (stream->recorder) {
+    stream_close_sinks(stream);
-        recorder_stop(stream->recorder);
-        LOGI("Finishing recording...");
-        recorder_join(stream->recorder);
-    }
-finally_close_recorder:
-    if (stream->recorder) {
-        recorder_close(stream->recorder);
-    }
-finally_close_decoder:
-    if (stream->decoder) {
-        decoder_close(stream->decoder);
-    }
 finally_free_codec_ctx:
     avcodec_free_context(&stream->codec_ctx);
 end:
-    notify_stopped();
+    stream->cbs->on_eos(stream, stream->cbs_userdata);
+
     return 0;
 }
 
 void
-stream_init(struct stream *stream, socket_t socket,
+stream_init(struct stream *stream, sc_socket socket,
-            struct decoder *decoder, struct recorder *recorder) {
+            const struct stream_callbacks *cbs, void *cbs_userdata) {
     stream->socket = socket;
-    stream->decoder = decoder,
+    stream->pending = NULL;
-    stream->recorder = recorder;
+    stream->sink_count = 0;
-    stream->has_pending = false;
+
+    assert(cbs && cbs->on_eos);
+
+    stream->cbs = cbs;
+    stream->cbs_userdata = cbs_userdata;
+}
+
+void
+stream_add_sink(struct stream *stream, struct sc_packet_sink *sink) {
+    assert(stream->sink_count < STREAM_MAX_SINKS);
+    assert(sink);
+    assert(sink->ops);
+    stream->sinks[stream->sink_count++] = sink;
 }
 
 bool
 stream_start(struct stream *stream) {
     LOGD("Starting stream thread");
 
-    stream->thread = SDL_CreateThread(run_stream, "stream", stream);
+    bool ok = sc_thread_create(&stream->thread, run_stream, "stream", stream);
-    if (!stream->thread) {
+    if (!ok) {
         LOGC("Could not start stream thread");
         return false;
     }
     return true;
 }
 
-void
-stream_stop(struct stream *stream) {
-    if (stream->decoder) {
-        decoder_interrupt(stream->decoder);
-    }
-}
-
 void
 stream_join(struct stream *stream) {
-    SDL_WaitThread(stream->thread, NULL);
+    sc_thread_join(&stream->thread, NULL);
 }

app/src/stream.h

@@ -1,40 +1,49 @@
 #ifndef STREAM_H
 #define STREAM_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <libavformat/avformat.h>
-#include <SDL2/SDL_atomic.h>
-#include <SDL2/SDL_thread.h>
 
-#include "net.h"
+#include "trait/packet_sink.h"
+#include "util/net.h"
+#include "util/thread.h"
 
-struct video_buffer;
+#define STREAM_MAX_SINKS 2
 
 struct stream {
-    socket_t socket;
+    sc_socket socket;
-    struct video_buffer *video_buffer;
+    sc_thread thread;
-    SDL_Thread *thread;
+
-    struct decoder *decoder;
+    struct sc_packet_sink *sinks[STREAM_MAX_SINKS];
-    struct recorder *recorder;
+    unsigned sink_count;
+
     AVCodecContext *codec_ctx;
     AVCodecParserContext *parser;
     // successive packets may need to be concatenated, until a non-config
     // packet is available
-    bool has_pending;
+    AVPacket *pending;
-    AVPacket pending;
+
+    const struct stream_callbacks *cbs;
+    void *cbs_userdata;
+};
+
+struct stream_callbacks {
+    void (*on_eos)(struct stream *stream, void *userdata);
 };
 
 void
-stream_init(struct stream *stream, socket_t socket,
+stream_init(struct stream *stream, sc_socket socket,
-            struct decoder *decoder, struct recorder *recorder);
+            const struct stream_callbacks *cbs, void *cbs_userdata);
+
+void
+stream_add_sink(struct stream *stream, struct sc_packet_sink *sink);
 
 bool
 stream_start(struct stream *stream);
 
-void
-stream_stop(struct stream *stream);
-
 void
 stream_join(struct stream *stream);
 

app/src/sys/unix/command.c

@@ -1,126 +0,0 @@
-// for portability
-#define _POSIX_SOURCE // for kill()
-#define _BSD_SOURCE // for readlink()
-
-// modern glibc will complain without this
-#define _DEFAULT_SOURCE
-
-#include "command.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include "log.h"
-
-enum process_result
-cmd_execute(const char *path, const char *const argv[], pid_t *pid) {
-    int fd[2];
-
-    if (pipe(fd) == -1) {
-        perror("pipe");
-        return PROCESS_ERROR_GENERIC;
-    }
-
-    enum process_result ret = PROCESS_SUCCESS;
-
-    *pid = fork();
-    if (*pid == -1) {
-        perror("fork");
-        ret = PROCESS_ERROR_GENERIC;
-        goto end;
-    }
-
-    if (*pid > 0) {
-        // parent close write side
-        close(fd[1]);
-        fd[1] = -1;
-        // wait for EOF or receive errno from child
-        if (read(fd[0], &ret, sizeof(ret)) == -1) {
-            perror("read");
-            ret = PROCESS_ERROR_GENERIC;
-            goto end;
-        }
-    } else if (*pid == 0) {
-        // child close read side
-        close(fd[0]);
-        if (fcntl(fd[1], F_SETFD, FD_CLOEXEC) == 0) {
-            execvp(path, (char *const *)argv);
-            if (errno == ENOENT) {
-                ret = PROCESS_ERROR_MISSING_BINARY;
-            } else {
-                ret = PROCESS_ERROR_GENERIC;
-            }
-            perror("exec");
-        } else {
-            perror("fcntl");
-            ret = PROCESS_ERROR_GENERIC;
-        }
-        // send ret to the parent
-        if (write(fd[1], &ret, sizeof(ret)) == -1) {
-            perror("write");
-        }
-        // close write side before exiting
-        close(fd[1]);
-        _exit(1);
-    }
-
-end:
-    if (fd[0] != -1) {
-        close(fd[0]);
-    }
-    if (fd[1] != -1) {
-        close(fd[1]);
-    }
-    return ret;
-}
-
-bool
-cmd_terminate(pid_t pid) {
-    if (pid <= 0) {
-        LOGC("Requested to kill %d, this is an error. Please report the bug.\n",
-             (int) pid);
-        abort();
-    }
-    return kill(pid, SIGTERM) != -1;
-}
-
-bool
-cmd_simple_wait(pid_t pid, int *exit_code) {
-    int status;
-    int code;
-    if (waitpid(pid, &status, 0) == -1 || !WIFEXITED(status)) {
-        // could not wait, or exited unexpectedly, probably by a signal
-        code = -1;
-    } else {
-        code = WEXITSTATUS(status);
-    }
-    if (exit_code) {
-        *exit_code = code;
-    }
-    return !code;
-}
-
-char *
-get_executable_path(void) {
-// <https://stackoverflow.com/a/1024937/1987178>
-#ifdef __linux__
-    char buf[PATH_MAX + 1]; // +1 for the null byte
-    ssize_t len = readlink("/proc/self/exe", buf, PATH_MAX);
-    if (len == -1) {
-        perror("readlink");
-        return NULL;
-    }
-    buf[len] = '\0';
-    return SDL_strdup(buf);
-#else
-    // in practice, we only need this feature for portable builds, only used on
-    // Windows, so we don't care implementing it for every platform
-    // (it's useful to have a working version on Linux for debugging though)
-    return NULL;
-#endif
-}

app/src/sys/unix/file.c

@@ -0,0 +1,75 @@
+#include "util/file.h"
+
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+bool
+sc_file_executable_exists(const char *file) {
+    char *path = getenv("PATH");
+    if (!path)
+        return false;
+    path = strdup(path);
+    if (!path)
+        return false;
+
+    bool ret = false;
+    size_t file_len = strlen(file);
+    char *saveptr;
+    for (char *dir = strtok_r(path, ":", &saveptr); dir;
+            dir = strtok_r(NULL, ":", &saveptr)) {
+        size_t dir_len = strlen(dir);
+        char *fullpath = malloc(dir_len + file_len + 2);
+        if (!fullpath)
+            continue;
+        memcpy(fullpath, dir, dir_len);
+        fullpath[dir_len] = '/';
+        memcpy(fullpath + dir_len + 1, file, file_len + 1);
+
+        struct stat sb;
+        bool fullpath_executable = stat(fullpath, &sb) == 0 &&
+            sb.st_mode & S_IXUSR;
+        free(fullpath);
+        if (fullpath_executable) {
+            ret = true;
+            break;
+        }
+    }
+
+    free(path);
+    return ret;
+}
+
+char *
+sc_file_get_executable_path(void) {
+// <https://stackoverflow.com/a/1024937/1987178>
+#ifdef __linux__
+    char buf[PATH_MAX + 1]; // +1 for the null byte
+    ssize_t len = readlink("/proc/self/exe", buf, PATH_MAX);
+    if (len == -1) {
+        perror("readlink");
+        return NULL;
+    }
+    buf[len] = '\0';
+    return strdup(buf);
+#else
+    // in practice, we only need this feature for portable builds, only used on
+    // Windows, so we don't care implementing it for every platform
+    // (it's useful to have a working version on Linux for debugging though)
+    return NULL;
+#endif
+}
+
+bool
+sc_file_is_regular(const char *path) {
+    struct stat path_stat;
+
+    if (stat(path, &path_stat)) {
+        perror("stat");
+        return false;
+    }
+    return S_ISREG(path_stat.st_mode);
+}
+

app/src/sys/unix/net.c

@@ -1,19 +0,0 @@
-#include "net.h"
-
-#include <unistd.h>
-
-bool
-net_init(void) {
-    // do nothing
-    return true;
-}
-
-void
-net_cleanup(void) {
-    // do nothing
-}
-
-bool
-net_close(socket_t socket) {
-    return !close(socket);
-}

app/src/sys/unix/process.c

@@ -0,0 +1,200 @@
+#include "util/process.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "util/log.h"
+
+enum sc_process_result
+sc_process_execute_p(const char *const argv[], sc_pid *pid,
+                     int *pin, int *pout, int *perr) {
+    int in[2];
+    int out[2];
+    int err[2];
+    int internal[2]; // communication between parent and children
+
+    if (pipe(internal) == -1) {
+        perror("pipe");
+        return SC_PROCESS_ERROR_GENERIC;
+    }
+    if (pin) {
+        if (pipe(in) == -1) {
+            perror("pipe");
+            close(internal[0]);
+            close(internal[1]);
+            return SC_PROCESS_ERROR_GENERIC;
+        }
+    }
+    if (pout) {
+        if (pipe(out) == -1) {
+            perror("pipe");
+            // clean up
+            if (pin) {
+                close(in[0]);
+                close(in[1]);
+            }
+            close(internal[0]);
+            close(internal[1]);
+            return SC_PROCESS_ERROR_GENERIC;
+        }
+    }
+    if (perr) {
+        if (pipe(err) == -1) {
+            perror("pipe");
+            // clean up
+            if (pout) {
+                close(out[0]);
+                close(out[1]);
+            }
+            if (pin) {
+                close(in[0]);
+                close(in[1]);
+            }
+            close(internal[0]);
+            close(internal[1]);
+            return SC_PROCESS_ERROR_GENERIC;
+        }
+    }
+
+    *pid = fork();
+    if (*pid == -1) {
+        perror("fork");
+        // clean up
+        if (perr) {
+            close(err[0]);
+            close(err[1]);
+        }
+        if (pout) {
+            close(out[0]);
+            close(out[1]);
+        }
+        if (pin) {
+            close(in[0]);
+            close(in[1]);
+        }
+        close(internal[0]);
+        close(internal[1]);
+        return SC_PROCESS_ERROR_GENERIC;
+    }
+
+    if (*pid == 0) {
+        if (pin) {
+            if (in[0] != STDIN_FILENO) {
+                dup2(in[0], STDIN_FILENO);
+                close(in[0]);
+            }
+            close(in[1]);
+        }
+        if (pout) {
+            if (out[1] != STDOUT_FILENO) {
+                dup2(out[1], STDOUT_FILENO);
+                close(out[1]);
+            }
+            close(out[0]);
+        }
+        if (perr) {
+            if (err[1] != STDERR_FILENO) {
+                dup2(err[1], STDERR_FILENO);
+                close(err[1]);
+            }
+            close(err[0]);
+        }
+        close(internal[0]);
+        enum sc_process_result err;
+        if (fcntl(internal[1], F_SETFD, FD_CLOEXEC) == 0) {
+            execvp(argv[0], (char *const *) argv);
+            perror("exec");
+            err = errno == ENOENT ? SC_PROCESS_ERROR_MISSING_BINARY
+                                  : SC_PROCESS_ERROR_GENERIC;
+        } else {
+            perror("fcntl");
+            err = SC_PROCESS_ERROR_GENERIC;
+        }
+        // send err to the parent
+        if (write(internal[1], &err, sizeof(err)) == -1) {
+            perror("write");
+        }
+        close(internal[1]);
+        _exit(1);
+    }
+
+    // parent
+    assert(*pid > 0);
+
+    close(internal[1]);
+
+    enum sc_process_result res = SC_PROCESS_SUCCESS;
+    // wait for EOF or receive err from child
+    if (read(internal[0], &res, sizeof(res)) == -1) {
+        perror("read");
+        res = SC_PROCESS_ERROR_GENERIC;
+    }
+
+    close(internal[0]);
+
+    if (pin) {
+        close(in[0]);
+        *pin = in[1];
+    }
+    if (pout) {
+        *pout = out[0];
+        close(out[1]);
+    }
+    if (perr) {
+        *perr = err[0];
+        close(err[1]);
+    }
+
+    return res;
+}
+
+bool
+sc_process_terminate(pid_t pid) {
+    if (pid <= 0) {
+        LOGC("Requested to kill %d, this is an error. Please report the bug.\n",
+             (int) pid);
+        abort();
+    }
+    return kill(pid, SIGKILL) != -1;
+}
+
+sc_exit_code
+sc_process_wait(pid_t pid, bool close) {
+    int code;
+    int options = WEXITED;
+    if (!close) {
+        options |= WNOWAIT;
+    }
+
+    siginfo_t info;
+    int r = waitid(P_PID, pid, &info, options);
+    if (r == -1 || info.si_code != CLD_EXITED) {
+        // could not wait, or exited unexpectedly, probably by a signal
+        code = SC_EXIT_CODE_NONE;
+    } else {
+        code = info.si_status;
+    }
+    return code;
+}
+
+void
+sc_process_close(pid_t pid) {
+    sc_process_wait(pid, true); // ignore exit code
+}
+
+ssize_t
+sc_pipe_read(int pipe, char *data, size_t len) {
+    return read(pipe, data, len);
+}
+
+void
+sc_pipe_close(int pipe) {
+    if (close(pipe)) {
+        perror("close pipe");
+    }
+}

app/src/sys/win/command.c

@@ -1,92 +0,0 @@
-#include "command.h"
-
-#include "config.h"
-#include "log.h"
-#include "str_util.h"
-
-static int
-build_cmd(char *cmd, size_t len, const char *const argv[]) {
-    // Windows command-line parsing is WTF:
-    // <http://daviddeley.com/autohotkey/parameters/parameters.htm#WINPASS>
-    // only make it work for this very specific program
-    // (don't handle escaping nor quotes)
-    size_t ret = xstrjoin(cmd, argv, ' ', len);
-    if (ret >= len) {
-        LOGE("Command too long (%" PRIsizet " chars)", len - 1);
-        return -1;
-    }
-    return 0;
-}
-
-enum process_result
-cmd_execute(const char *path, const char *const argv[], HANDLE *handle) {
-    STARTUPINFOW si;
-    PROCESS_INFORMATION pi;
-    memset(&si, 0, sizeof(si));
-    si.cb = sizeof(si);
-
-    char cmd[256];
-    if (build_cmd(cmd, sizeof(cmd), argv)) {
-        *handle = NULL;
-        return PROCESS_ERROR_GENERIC;
-    }
-
-    wchar_t *wide = utf8_to_wide_char(cmd);
-    if (!wide) {
-        LOGC("Could not allocate wide char string");
-        return PROCESS_ERROR_GENERIC;
-    }
-
-#ifdef WINDOWS_NOCONSOLE
-    int flags = CREATE_NO_WINDOW;
-#else
-    int flags = 0;
-#endif
-    if (!CreateProcessW(NULL, wide, NULL, NULL, FALSE, flags, NULL, NULL, &si,
-                        &pi)) {
-        SDL_free(wide);
-        *handle = NULL;
-        if (GetLastError() == ERROR_FILE_NOT_FOUND) {
-            return PROCESS_ERROR_MISSING_BINARY;
-        }
-        return PROCESS_ERROR_GENERIC;
-    }
-
-    SDL_free(wide);
-    *handle = pi.hProcess;
-    return PROCESS_SUCCESS;
-}
-
-bool
-cmd_terminate(HANDLE handle) {
-    return TerminateProcess(handle, 1) && CloseHandle(handle);
-}
-
-bool
-cmd_simple_wait(HANDLE handle, DWORD *exit_code) {
-    DWORD code;
-    if (WaitForSingleObject(handle, INFINITE) != WAIT_OBJECT_0
-            || !GetExitCodeProcess(handle, &code)) {
-        // could not wait or retrieve the exit code
-        code = -1; // max value, it's unsigned
-    }
-    if (exit_code) {
-        *exit_code = code;
-    }
-    return !code;
-}
-
-char *
-get_executable_path(void) {
-    HMODULE hModule = GetModuleHandleW(NULL);
-    if (!hModule) {
-        return NULL;
-    }
-    WCHAR buf[MAX_PATH + 1]; // +1 for the null byte
-    int len = GetModuleFileNameW(hModule, buf, MAX_PATH);
-    if (!len) {
-        return NULL;
-    }
-    buf[len] = '\0';
-    return utf8_from_wide_char(buf);
-}

app/src/sys/win/file.c

@@ -0,0 +1,43 @@
+#include "util/file.h"
+
+#include <windows.h>
+
+#include <sys/stat.h>
+
+#include "util/log.h"
+#include "util/str_util.h"
+
+char *
+sc_file_get_executable_path(void) {
+    HMODULE hModule = GetModuleHandleW(NULL);
+    if (!hModule) {
+        return NULL;
+    }
+    WCHAR buf[MAX_PATH + 1]; // +1 for the null byte
+    int len = GetModuleFileNameW(hModule, buf, MAX_PATH);
+    if (!len) {
+        return NULL;
+    }
+    buf[len] = '\0';
+    return utf8_from_wide_char(buf);
+}
+
+bool
+sc_file_is_regular(const char *path) {
+    wchar_t *wide_path = utf8_to_wide_char(path);
+    if (!wide_path) {
+        LOGC("Could not allocate wide char string");
+        return false;
+    }
+
+    struct _stat path_stat;
+    int r = _wstat(wide_path, &path_stat);
+    free(wide_path);
+
+    if (r) {
+        perror("stat");
+        return false;
+    }
+    return S_ISREG(path_stat.st_mode);
+}
+

app/src/sys/win/net.c

@@ -1,24 +0,0 @@
-#include "net.h"
-
-#include "log.h"
-
-bool
-net_init(void) {
-    WSADATA wsa;
-    int res = WSAStartup(MAKEWORD(2, 2), &wsa) < 0;
-    if (res < 0) {
-        LOGC("WSAStartup failed with error %d", res);
-        return false;
-    }
-    return true;
-}
-
-void
-net_cleanup(void) {
-    WSACleanup();
-}
-
-bool
-net_close(socket_t socket) {
-    return !closesocket(socket);
-}

app/src/sys/win/process.c

@@ -0,0 +1,184 @@
+#include "util/process.h"
+
+#include <assert.h>
+
+#include "util/log.h"
+#include "util/str_util.h"
+
+#define CMD_MAX_LEN 8192
+
+static bool
+build_cmd(char *cmd, size_t len, const char *const argv[]) {
+    // Windows command-line parsing is WTF:
+    // <http://daviddeley.com/autohotkey/parameters/parameters.htm#WINPASS>
+    // only make it work for this very specific program
+    // (don't handle escaping nor quotes)
+    size_t ret = xstrjoin(cmd, argv, ' ', len);
+    if (ret >= len) {
+        LOGE("Command too long (%" SC_PRIsizet " chars)", len - 1);
+        return false;
+    }
+    return true;
+}
+
+enum sc_process_result
+sc_process_execute_p(const char *const argv[], HANDLE *handle,
+                     HANDLE *pin, HANDLE *pout, HANDLE *perr) {
+    enum sc_process_result ret = SC_PROCESS_ERROR_GENERIC;
+
+    SECURITY_ATTRIBUTES sa;
+    sa.nLength = sizeof(SECURITY_ATTRIBUTES);
+    sa.lpSecurityDescriptor = NULL;
+    sa.bInheritHandle = TRUE;
+
+    HANDLE stdin_read_handle;
+    HANDLE stdout_write_handle;
+    HANDLE stderr_write_handle;
+    if (pin) {
+        if (!CreatePipe(&stdin_read_handle, pin, &sa, 0)) {
+            perror("pipe");
+            return SC_PROCESS_ERROR_GENERIC;
+        }
+        if (!SetHandleInformation(*pin, HANDLE_FLAG_INHERIT, 0)) {
+            LOGE("SetHandleInformation stdin failed");
+            goto error_close_stdin;
+        }
+    }
+    if (pout) {
+        if (!CreatePipe(pout, &stdout_write_handle, &sa, 0)) {
+            perror("pipe");
+            goto error_close_stdin;
+        }
+        if (!SetHandleInformation(*pout, HANDLE_FLAG_INHERIT, 0)) {
+            LOGE("SetHandleInformation stdout failed");
+            goto error_close_stdout;
+        }
+    }
+    if (perr) {
+        if (!CreatePipe(perr, &stderr_write_handle, &sa, 0)) {
+            perror("pipe");
+            goto error_close_stdout;
+        }
+        if (!SetHandleInformation(*perr, HANDLE_FLAG_INHERIT, 0)) {
+            LOGE("SetHandleInformation stderr failed");
+            goto error_close_stderr;
+        }
+    }
+
+    STARTUPINFOW si;
+    PROCESS_INFORMATION pi;
+    memset(&si, 0, sizeof(si));
+    si.cb = sizeof(si);
+    if (pin || pout || perr) {
+        si.dwFlags = STARTF_USESTDHANDLES;
+        if (pin) {
+            si.hStdInput = stdin_read_handle;
+        }
+        if (pout) {
+            si.hStdOutput = stdout_write_handle;
+        }
+        if (perr) {
+            si.hStdError = stderr_write_handle;
+        }
+    }
+
+    char *cmd = malloc(CMD_MAX_LEN);
+    if (!cmd || !build_cmd(cmd, CMD_MAX_LEN, argv)) {
+        *handle = NULL;
+        goto error_close_stderr;
+    }
+
+    wchar_t *wide = utf8_to_wide_char(cmd);
+    free(cmd);
+    if (!wide) {
+        LOGC("Could not allocate wide char string");
+        goto error_close_stderr;
+    }
+
+    if (!CreateProcessW(NULL, wide, NULL, NULL, TRUE, 0, NULL, NULL, &si,
+                        &pi)) {
+        free(wide);
+        *handle = NULL;
+
+        if (GetLastError() == ERROR_FILE_NOT_FOUND) {
+            ret = SC_PROCESS_ERROR_MISSING_BINARY;
+        }
+        goto error_close_stderr;
+    }
+
+    // These handles are used by the child process, close them for this process
+    if (pin) {
+        CloseHandle(stdin_read_handle);
+    }
+    if (pout) {
+        CloseHandle(stdout_write_handle);
+    }
+    if (perr) {
+        CloseHandle(stderr_write_handle);
+    }
+
+    free(wide);
+    *handle = pi.hProcess;
+
+    return SC_PROCESS_SUCCESS;
+
+error_close_stderr:
+    if (perr) {
+        CloseHandle(*perr);
+        CloseHandle(stderr_write_handle);
+    }
+error_close_stdout:
+    if (pout) {
+        CloseHandle(*pout);
+        CloseHandle(stdout_write_handle);
+    }
+error_close_stdin:
+    if (pin) {
+        CloseHandle(*pin);
+        CloseHandle(stdin_read_handle);
+    }
+
+    return ret;
+}
+
+bool
+sc_process_terminate(HANDLE handle) {
+    return TerminateProcess(handle, 1);
+}
+
+sc_exit_code
+sc_process_wait(HANDLE handle, bool close) {
+    DWORD code;
+    if (WaitForSingleObject(handle, INFINITE) != WAIT_OBJECT_0
+            || !GetExitCodeProcess(handle, &code)) {
+        // could not wait or retrieve the exit code
+        code = SC_EXIT_CODE_NONE;
+    }
+    if (close) {
+        CloseHandle(handle);
+    }
+    return code;
+}
+
+void
+sc_process_close(HANDLE handle) {
+    bool closed = CloseHandle(handle);
+    assert(closed);
+    (void) closed;
+}
+
+ssize_t
+sc_read_pipe(HANDLE pipe, char *data, size_t len) {
+    DWORD r;
+    if (!ReadFile(pipe, data, len, &r, NULL)) {
+        return -1;
+    }
+    return r;
+}
+
+void
+sc_close_pipe(HANDLE pipe) {
+    if (!CloseHandle(pipe)) {
+        LOGW("Cannot close pipe");
+    }
+}

app/src/tiny_xpm.c

@@ -1,115 +0,0 @@
-#include "tiny_xpm.h"
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "log.h"
-
-struct index {
-    char c;
-    uint32_t color;
-};
-
-static bool
-find_color(struct index *index, int len, char c, uint32_t *color) {
-    // there are typically very few color, so it's ok to iterate over the array
-    for (int i = 0; i < len; ++i) {
-        if (index[i].c == c) {
-            *color = index[i].color;
-            return true;
-        }
-    }
-    *color = 0;
-    return false;
-}
-
-// We encounter some problems with SDL2_image on MSYS2 (Windows),
-// so here is our own XPM parsing not to depend on SDL_image.
-//
-// We do not hardcode the binary image to keep some flexibility to replace the
-// icon easily (just by replacing icon.xpm).
-//
-// Parameter is not "const char *" because XPM formats are generally stored in a
-// (non-const) "char *"
-SDL_Surface *
-read_xpm(char *xpm[]) {
-#if SDL_ASSERT_LEVEL >= 2
-    // patch the XPM to change the icon color in debug mode
-    xpm[2] = ".	c #CC00CC";
-#endif
-
-    char *endptr;
-    // *** No error handling, assume the XPM source is valid ***
-    // (it's in our source repo)
-    // Assertions are only checked in debug
-    int width = strtol(xpm[0], &endptr, 10);
-    int height = strtol(endptr + 1, &endptr, 10);
-    int colors = strtol(endptr + 1, &endptr, 10);
-    int chars = strtol(endptr + 1, &endptr, 10);
-
-    // sanity checks
-    SDL_assert(0 <= width && width < 256);
-    SDL_assert(0 <= height && height < 256);
-    SDL_assert(0 <= colors && colors < 256);
-    SDL_assert(chars == 1); // this implementation does not support more
-
-    // init index
-    struct index index[colors];
-    for (int i = 0; i < colors; ++i) {
-        const char *line = xpm[1+i];
-        index[i].c = line[0];
-        SDL_assert(line[1] == '\t');
-        SDL_assert(line[2] == 'c');
-        SDL_assert(line[3] == ' ');
-        if (line[4] == '#') {
-            index[i].color = 0xff000000 | strtol(&line[5], &endptr, 0x10);
-            SDL_assert(*endptr == '\0');
-        } else {
-            SDL_assert(!strcmp("None", &line[4]));
-            index[i].color = 0;
-        }
-    }
-
-    // parse image
-    uint32_t *pixels = SDL_malloc(4 * width * height);
-    if (!pixels) {
-        LOGE("Could not allocate icon memory");
-        return NULL;
-    }
-    for (int y = 0; y < height; ++y) {
-        const char *line = xpm[1 + colors + y];
-        for (int x = 0; x < width; ++x) {
-            char c = line[x];
-            uint32_t color;
-            bool color_found = find_color(index, colors, c, &color);
-            SDL_assert(color_found);
-            pixels[y * width + x] = color;
-        }
-    }
-
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
-    uint32_t amask = 0x000000ff;
-    uint32_t rmask = 0x0000ff00;
-    uint32_t gmask = 0x00ff0000;
-    uint32_t bmask = 0xff000000;
-#else // little endian, like x86
-    uint32_t amask = 0xff000000;
-    uint32_t rmask = 0x00ff0000;
-    uint32_t gmask = 0x0000ff00;
-    uint32_t bmask = 0x000000ff;
-#endif
-
-    SDL_Surface *surface = SDL_CreateRGBSurfaceFrom(pixels,
-                                                    width, height,
-                                                    32, 4 * width,
-                                                    rmask, gmask, bmask, amask);
-    if (!surface) {
-        LOGE("Could not create icon surface");
-        return NULL;
-    }
-    // make the surface own the raw pixels
-    surface->flags &= ~SDL_PREALLOC;
-    return surface;
-}

app/src/tiny_xpm.h

@@ -1,9 +0,0 @@
-#ifndef TINYXPM_H
-#define TINYXPM_H
-
-#include <SDL2/SDL.h>
-
-SDL_Surface *
-read_xpm(char *xpm[]);
-
-#endif

app/src/trait/frame_sink.h

@@ -0,0 +1,26 @@
+#ifndef SC_FRAME_SINK_H
+#define SC_FRAME_SINK_H
+
+#include "common.h"
+
+#include <assert.h>
+#include <stdbool.h>
+
+typedef struct AVFrame AVFrame;
+
+/**
+ * Frame sink trait.
+ *
+ * Component able to receive AVFrames should implement this trait.
+ */
+struct sc_frame_sink {
+    const struct sc_frame_sink_ops *ops;
+};
+
+struct sc_frame_sink_ops {
+    bool (*open)(struct sc_frame_sink *sink);
+    void (*close)(struct sc_frame_sink *sink);
+    bool (*push)(struct sc_frame_sink *sink, const AVFrame *frame);
+};
+
+#endif

app/src/trait/key_processor.h

@@ -0,0 +1,29 @@
+#ifndef SC_KEY_PROCESSOR_H
+#define SC_KEY_PROCESSOR_H
+
+#include "common.h"
+
+#include <assert.h>
+#include <stdbool.h>
+
+#include <SDL2/SDL_events.h>
+
+/**
+ * Key processor trait.
+ *
+ * Component able to process and inject keys should implement this trait.
+ */
+struct sc_key_processor {
+    const struct sc_key_processor_ops *ops;
+};
+
+struct sc_key_processor_ops {
+    void
+    (*process_key)(struct sc_key_processor *kp, const SDL_KeyboardEvent *event);
+
+    void
+    (*process_text)(struct sc_key_processor *kp,
+                    const SDL_TextInputEvent *event);
+};
+
+#endif