Adapt call() on ContentProvider for Android 12

Android 12 changed one of the call() overloads with a new parameter
AttributionSource. Adapt the wrapper.

Fixes #2402 <https://github.com/Genymobile/scrcpy/issues/2402>

.gitignore

@@ -6,3 +6,4 @@ build/
 .idea/
 .gradle/
 /x/
+local.properties

BUILD.md

@@ -2,11 +2,43 @@
 
 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
+```
+
+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
 
@@ -59,12 +91,11 @@ Install the required packages from your package manager.
 sudo apt install ffmpeg libsdl2-2.0-0 adb
 
 # client build dependencies
-sudo apt install gcc git pkg-config meson ninja-build \
-                 libavcodec-dev libavformat-dev libavutil-dev \
-                 libsdl2-dev
+sudo apt install gcc git pkg-config meson ninja-build libsdl2-dev \
+                 libavcodec-dev libavdevice-dev libavformat-dev libavutil-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
@@ -106,13 +137,13 @@ 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/`.
@@ -173,12 +204,12 @@ 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 homebrew/cask-versions
-brew cask install adoptopenjdk/openjdk/adoptopenjdk8
-export JAVA_HOME="$(/usr/libexec/java_home --version 1.8)"
+brew install adoptopenjdk/openjdk/adoptopenjdk11
+export JAVA_HOME="$(/usr/libexec/java_home --version 1.11)"
 export PATH="$JAVA_HOME/bin:$PATH"
 ```
 
@@ -189,8 +220,27 @@ 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_),
-and set `ANDROID_SDK_ROOT` to its directory. For example:
+**As a non-root user**, 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
 
@@ -203,20 +253,11 @@ export ANDROID_SDK_ROOT=~/Library/Android/sdk
 set ANDROID_SDK_ROOT=%LOCALAPPDATA%\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
-```
-
 Then, build:
 
 ```bash
 meson x --buildtype release --strip -Db_lto=true
-ninja -Cx
+ninja -Cx  # DO NOT RUN AS ROOT
 ```
 
 _Note: `ninja` [must][ninja-user] be run as a non-root user (only `ninja
@@ -225,9 +266,27 @@ 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-v1.17`][direct-scrcpy-server]  
+   _(SHA-256: 11b5ad2d1bc9b9730fb7254a78efd71a8ff46b1938ff468e47a21b653a1b6725)_
+
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.17/scrcpy-server-v1.17
+
+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]
@@ -242,32 +301,16 @@ After a successful build, you can install _scrcpy_ on the system:
 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`
-
-Just remove them to "uninstall" the application.
+ - `/usr/local/share/man/man1/scrcpy.1`
 
 You can then [run](README.md#run) _scrcpy_.
 
-
-## Prebuilt server
-
- - [`scrcpy-server-v1.15`][direct-scrcpy-server]  
-   _(SHA-256: e160c46784f30566eae621cad88bfb34e124f945cb8274b8dfc615b613b86dd8)_
-
-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.15/scrcpy-server-v1.15
-
-Download the prebuilt server somewhere, and specify its path during the Meson
-configuration:
+### Uninstall
 
 ```bash
-meson x --buildtype release --strip -Db_lto=true \
-    -Dprebuilt_server=/path/to/scrcpy-server
-ninja -Cx
-sudo ninja -Cx install
+sudo ninja -Cx uninstall  # without sudo on Windows
 ```
-
-The server only works with a matching client version (this server works with the
-`master` branch).

DEVELOP.md

@@ -211,7 +211,7 @@ 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 it muxes the raw

FAQ.ko.md

@@ -3,16 +3,16 @@
 다음은 자주 제보되는 문제들과 그들의 현황입니다.
 
 
-### Window 운영체제에서, 디바이스가 발견되지 않습니다.
+### 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
 
-Window는 당신의 디바이스를 감지하기 위해 [drivers]가 필요할 수도 있습니다.
+Windows는 당신의 디바이스를 감지하기 위해 [드라이버]가 필요할 수도 있습니다.
 
-[drivers]: https://developer.android.com/studio/run/oem-usb.html
+[드라이버]: https://developer.android.com/studio/run/oem-usb.html
 
 
 ### 내 디바이스의 미러링만 가능하고, 디바이스와 상호작용을 할 수 없습니다.

FAQ.md

@@ -37,8 +37,13 @@ Check [stackoverflow][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
 
 
@@ -109,16 +114,6 @@ In developer options, enable:
 [simulating input]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
 
 
-### Mouse clicks at wrong location
-
-On MacOS, with HiDPI support and multiple screens, input location are wrongly
-scaled. See [#15].
-
-[#15]: https://github.com/Genymobile/scrcpy/issues/15
-
-Open _scrcpy_ directly on the monitor you use it.
-
-
 ### Special characters do not work
 
 Injecting text input is [limited to ASCII characters][text-input]. A trick
@@ -197,3 +192,41 @@ 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/

LICENSE

@@ -188,7 +188,7 @@
       identification within third-party archives.
 
    Copyright (C) 2018 Genymobile
-   Copyright (C) 2018-2020 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.

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.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

@@ -68,9 +68,7 @@ Gentoo에서 ,[Ebuild] 가 가능합니다 : [`scrcpy/`][ebuild-link].
 
 윈도우 상에서, 간단하게 설치하기 위해 종속성이 있는 사전 구축된 아카이브가 제공됩니다 (`adb` 포함) :
 해당 파일은 Readme원본 링크를 통해서 다운로드가 가능합니다.
- - [`scrcpy-win`][direct-win]
-
-[direct-win]: https://github.com/Genymobile/scrcpy/blob/master/README.md#windows
+ - [README](README.md#windows)
 
 
 [어플을 직접 설치][BUILD] 할 수도 있습니다.
@@ -477,7 +475,7 @@ _²화면이 꺼진 상태에서 우클릭 시 다시 켜지며, 그 외의 상
 ## 라이선스
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2020 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.

README.md

@@ -1,4 +1,6 @@
-# scrcpy (v1.15)
+# scrcpy (v1.17)
+
+[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.
@@ -34,6 +36,19 @@ 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
 
@@ -64,9 +79,8 @@ 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] (don't worry, it's not that
-hard).
-
+You could also [build the app manually][BUILD] ([simplified
+process][BUILD_simple]).
 
 
 ### Windows
@@ -74,10 +88,10 @@ hard).
 For Windows, for simplicity, a prebuilt archive with all the dependencies
 (including `adb`) is available:
 
- - [`scrcpy-win64-v1.15.zip`][direct-win64]  
-   _(SHA-256: dd514bb591e63ef4cd52a53c30f1153a28f59722d64690eb07bd017849edcba2)_
+ - [`scrcpy-win64-v1.17.zip`][direct-win64]  
+   _(SHA-256: 8b9e57993c707367ed10ebfe0e1ef563c7a29d9af4a355cd8b6a52a317c73eea)_
 
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.15/scrcpy-win64-v1.15.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.17/scrcpy-win64-v1.17.zip
 
 It is also available in [Chocolatey]:
 
@@ -113,9 +127,18 @@ 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].
 
 
@@ -191,16 +214,37 @@ If `--max-size` is also specified, resizing is applied after cropping.
 To lock the orientation of the mirroring:
 
 ```bash
-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
+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.
 
-### Recording
+
+#### 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:
 
@@ -224,6 +268,59 @@ 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/fr
+
+
 ### Connection
 
 #### Wireless
@@ -232,7 +329,13 @@ _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`)_.
@@ -379,12 +482,12 @@ The rotation can also be changed dynamically with <kbd>MOD</kbd>+<kbd>←</kbd>
 _(left)_ and <kbd>MOD</kbd>+<kbd>→</kbd> _(right)_.
 
 Note that _scrcpy_ manages 3 different rotations:
-- <kbd>MOD</kbd>+<kbd>r</kbd> requests the device to switch between portrait and
-  landscape (the current running app may refuse, if it does support the
-  requested orientation).
- - `--lock-video-orientation` changes the mirroring orientation (the orientation
-   of the video sent from the device to the computer). This affects the
-   recording.
+ - <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
+   requested orientation).
+ - [`--lock-video-orientation`](#lock-video-orientation) changes the mirroring
+   orientation (the orientation of the video sent from the device to the
+   computer). This affects the recording.
  - `--rotation` (or <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>)
    rotates only the window content. This affects only the display, not the
    recording.
@@ -448,7 +551,7 @@ Or by pressing <kbd>MOD</kbd>+<kbd>o</kbd> at any time.
 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>Ctrl</kbd>+<kbd>p</kbd>), it
+`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.
 
@@ -460,18 +563,6 @@ scrcpy -Sw
 ```
 
 
-#### Render expired frames
-
-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
-```
-
 #### Show touches
 
 For presentations, it may be useful to show physical touches (on the physical
@@ -545,6 +636,24 @@ 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.
+
+
 #### Text injection preference
 
 There are two kinds of [events][textevents] generated when typing text:
@@ -579,6 +688,16 @@ scrcpy --no-key-repeat
 ```
 
 
+#### 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
@@ -591,15 +710,15 @@ 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.
+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/foo/bar/
+scrcpy --push-target=/sdcard/Movies/
 ```
 
 
@@ -639,10 +758,10 @@ _<kbd>[Super]</kbd> is typically the <kbd>Windows</kbd> or <kbd>Cmd</kbd> key._
  | 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-click¹_
+ | 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>
+ | 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)_
@@ -651,17 +770,27 @@ _<kbd>[Super]</kbd> is typically the <kbd>Windows</kbd> or <kbd>Cmd</kbd> key._
  | 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>
- | Collapse notification panel                 | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
- | Copy to clipboard³                          | <kbd>MOD</kbd>+<kbd>c</kbd>
- | Cut to clipboard³                           | <kbd>MOD</kbd>+<kbd>x</kbd>
- | Synchronize clipboards and paste³           | <kbd>MOD</kbd>+<kbd>v</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_
 
 _¹Double-click on black borders to remove them._  
 _²Right-click turns the screen on if it was off, presses BACK otherwise._  
-_³Only on Android >= 7._
+_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.
@@ -694,8 +823,6 @@ A colleague challenged me to find a name as unpronounceable as [gnirehtet].
 
 See [BUILD].
 
-[BUILD]: BUILD.md
-
 
 ## Common issues
 
@@ -712,7 +839,7 @@ Read the [developers page].
 ## Licence
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2020 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.
@@ -733,3 +860,16 @@ 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)
+- [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)
+- [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)
+
+Only this README file is guaranteed to be up-to-date.

README.pt-br.md

@@ -1,16 +1,16 @@
-_Only the original [README](README.md) is guaranteed to be up-to-date._
+_Apenas o [README](README.md) original é garantido estar atualizado._
 
-# scrcpy (v1.12.1)
+# scrcpy (v1.17)
 
-Esta aplicação fornece visualização e controle de dispositivos Android conectados via
-USB (ou [via TCP/IP][article-tcpip]). Não requer nenhum acesso root.
+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)
+ - **leveza** (nativo, mostra apenas a tela do dispositivo)
  - **performance** (30~60fps)
  - **qualidade** (1920×1080 ou acima)
  - **baixa latência** ([35~70ms][lowlatency])
@@ -22,36 +22,41 @@ Foco em:
 
 ## Requisitos
 
-O Dispositivo Android requer pelo menos a API 21 (Android 5.0).
+O dispositivo Android requer pelo menos a API 21 (Android 5.0).
 
-
-Tenha certeza de ter [ativado a depuração USB][enable-adb] no(s) seu(s) dispositivo(s).
+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 precisará ativar [uma opção adicional][control] para controlá-lo usando o teclado e mouse.
+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
 
 
-## Obtendo o app
+## 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 (_em testes_ e _sid_ por enquanto):
+No Debian (_testing_ e _sid_ por enquanto) e Ubuntu (20.04):
 
 ```
 apt install scrcpy
 ```
 
-O pacote [Snap] está disponível: [`scrcpy`][snap-link].
+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
@@ -62,21 +67,19 @@ 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).
 
-Você também pode [compilar a aplicação manualmente][BUILD] (não se preocupe, não é tão difícil).
 
 
 ### Windows
 
-Para Windows, para simplicidade, um arquivo pré-compilado com todas as dependências
+Para Windows, por simplicidade, um arquivo pré-compilado com todas as dependências
 (incluindo `adb`) está disponível:
 
- - [`scrcpy-win64-v1.12.1.zip`][direct-win64]  
-   _(SHA-256: 57d34b6d16cfd9fe169bc37c4df58ebd256d05c1ea3febc63d9cb0a027ab47c9)_
+ - [README](README.md#windows)
 
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-win64-v1.12.1.zip
-
-Também disponível em [Chocolatey]:
+Também está disponível em [Chocolatey]:
 
 [Chocolatey]: https://chocolatey.org/
 
@@ -94,12 +97,12 @@ scoop install adb    # se você ainda não o tem
 
 [Scoop]: https://scoop.sh
 
-Você também pode [compilar a aplicação manualmente][BUILD].
+Você também pode [compilar o app manualmente][BUILD].
 
 
 ### macOS
 
-A aplicação está disponível em [Homebrew]. Apenas a instale:
+A aplicação está disponível em [Homebrew]. Apenas instale-a:
 
 [Homebrew]: https://brew.sh/
 
@@ -107,18 +110,22 @@ A aplicação está disponível em [Homebrew]. Apenas a instale:
 brew install scrcpy
 ```
 
-Você precisa do `adb`, acessível através do seu `PATH`. Se você ainda não o tem:
+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 a aplicação manualmente][BUILD].
+Você também pode [compilar o app manualmente][BUILD].
 
 
 ## Executar
 
-Plugue um dispositivo Android e execute:
+Conecte um dispositivo Android e execute:
 
 ```bash
 scrcpy
@@ -134,52 +141,87 @@ scrcpy --help
 
 ### Configuração de captura
 
-#### Redução de tamanho
+#### Reduzir tamanho
 
 Algumas vezes, é útil espelhar um dispositivo Android em uma resolução menor para
-aumentar performance.
+aumentar a performance.
 
-Para limitar ambos(largura e altura) para algum valor (ex: 1024):
+Para limitar ambos (largura e altura) para algum valor (ex: 1024):
 
 ```bash
 scrcpy --max-size 1024
-scrcpy -m 1024  # versão reduzida
+scrcpy -m 1024  # versão curta
 ```
 
 A outra dimensão é calculada para que a proporção do dispositivo seja preservada.
-Dessa forma, um dispositivo em 1920x1080 será espelhado em 1024x576.
+Dessa forma, um dispositivo de 1920x1080 será espelhado em 1024x576.
 
 
-#### Mudanças no bit-rate
+#### Mudar bit-rate
 
-O Padrão de bit-rate é 8 mbps. Para mudar o bitrate do vídeo (ex: para 2 Mbps):
+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 reduzida
+scrcpy -b 2M  # versão curta
 ```
 
-#### Limitar frame rates
+#### Limitar frame rate
 
-Em dispositivos com Android >= 10, a captura de frame rate pode ser limitada:
+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, ao espelhar apenas um olho do Oculus Go:
+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, redimensionar é aplicado após os cortes.
+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:
@@ -194,65 +236,84 @@ Para desativar o espelhamento durante a gravação:
 ```bash
 scrcpy --no-display --record file.mp4
 scrcpy -Nr file.mkv
-# interrompe a gravação com Ctrl+C
-# Ctrl+C não encerrar propriamente no Windows, então desconecte o dispositivo
+# interrompa a gravação com Ctrl+C
 ```
 
-"Frames pulados" são gravados, mesmo que não sejam mostrado em tempo real (por motivos de performance).
-Frames tem seu _horário_ _carimbado_ no dispositivo, então [Variação de atraso nos pacotes] não impacta na gravação do arquivo.
+"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.
 
-[Variação de atraso de pacote]: https://en.wikipedia.org/wiki/Packet_delay_variation
+[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
 
 
 ### Conexão
 
-#### Wireless/Sem fio
+#### Sem fio
 
-_Scrcpy_ usa `adb` para se comunicar com o dispositivo, e `adb` pode [conectar-se] à um dispositivo via TCP/IP:
+_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}'
+    ```
 
-1. Conecte o dispositivo a mesma rede Wi-Fi do seu computador.
-2. Pegue o endereço de IP do seu dispositivo (Em Configurações → Sobre o Telefone → Status).
 3. Ative o adb via TCP/IP no seu dispositivo: `adb tcpip 5555`.
-4. Desplugue seu dispositivo.
-5. Conecte-se ao seu dispositivo: `adb connect DEVICE_IP:5555` _(substitua o `DEVICE_IP`)_.
+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 reduzida
+scrcpy -b2M -m800  # versão curta
 ```
 
-[conectar-se]: https://developer.android.com/studio/command-line/adb.html#wireless
+[connect]: https://developer.android.com/studio/command-line/adb.html#wireless
 
 
-#### N-dispositivos
+#### Múltiplos dispositivos
 
-Se alguns dispositivos estão listados em `adb devices`, você precisa especificar o _serial_:
+Se vários dispositivos são listados em `adb devices`, você deve especificar o _serial_:
 
 ```bash
 scrcpy --serial 0123456789abcdef
-scrcpy -s 0123456789abcdef  # versão reduzida
+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 reduzida
+scrcpy -s 192.168.0.1:5555  # versão curta
 ```
 
-Você pode iniciar algumas instâncias do _scrcpy_ para alguns dispositivos.
+Você pode iniciar várias instâncias do _scrcpy_ para vários dispositivos.
 
-#### Conexão via SSH
+#### Iniciar automaticamente quando dispositivo é conectado
 
-Para conectar-se à um dispositivo remoto, é possível se conectar um cliente local `adb`  à um servidor `adb` remoto (contanto que eles usem a mesma versão do protocolo _adb_):
+Você pode usar [AutoAdb]:
 
 ```bash
-adb kill-server    # encerra o servidor local na 5037
+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
-# mantém isso aberto
+# mantenha isso aberto
 ```
 
 De outro terminal:
@@ -261,17 +322,33 @@ De outro terminal:
 scrcpy
 ```
 
-Igual para conexões sem fio, pode ser útil reduzir a qualidade:
+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
 ```
 
-### Configurações de Janela
+### Configuração de janela
 
 #### Título
 
-Por padrão, o título da janela é o modelo do dispositivo. Isto pode ser mudado:
+Por padrão, o título da janela é o modelo do dispositivo. Isso pode ser mudado:
 
 ```bash
 scrcpy --window-title 'Meu dispositivo'
@@ -287,15 +364,15 @@ scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
 
 #### Sem bordas
 
-Para desativar decorações da janela:
+Para desativar decorações de janela:
 
 ```bash
 scrcpy --window-borderless
 ```
 
-#### Sempre visível
+#### Sempre no topo
 
-Para manter a janela do scrcpy sempre visível:
+Para manter a janela do scrcpy sempre no topo:
 
 ```bash
 scrcpy --always-on-top
@@ -307,41 +384,117 @@ A aplicação pode ser iniciada diretamente em tela cheia:
 
 ```bash
 scrcpy --fullscreen
-scrcpy -f  # versão reduzida
+scrcpy -f  # versão curta
 ```
 
-Tela cheia pode ser alternada dinamicamente com `Ctrl`+`f`.
+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):
+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
 ```
 
-#### Desligar a tela
+#### Display
 
-É possível desligar a tela do dispositivo durante o início do espelhamento com uma opção de linha de comando:
+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 `Ctrl`+`o` durante qualquer momento.
+Ou apertando <kbd>MOD</kbd>+<kbd>o</kbd> a qualquer momento.
 
-Para ligar novamente, pressione `POWER` (ou `Ctrl`+`p`).
+Para ligar novamente, pressione <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
 
-#### Frames expirados de renderização
+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.
 
-Por padrão, para minimizar a latência, _scrcpy_ sempre renderiza o último frame decodificado disponível e descarta o anterior.
+Também pode ser útil evitar que o dispositivo seja suspenso:
 
-Para forçar a renderização de todos os frames ( com o custo de aumento de latência), use:
+```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
@@ -349,11 +502,13 @@ scrcpy --render-expired-frames
 
 #### Mostrar toques
 
-Para apresentações, pode ser útil mostrar toques físicos(dispositivo físico).
+Para apresentações, pode ser útil mostrar toques físicos (no dispositivo
+físico).
 
-Android fornece esta funcionalidade nas _Opções do Desenvolvedor_.
+Android fornece esta funcionalidade nas _Opções do desenvolvedor_.
 
-_Scrcpy_ fornece esta opção de ativar esta funcionalidade no início e desativar no encerramento:
+_Scrcpy_ fornece esta opção de ativar esta funcionalidade no início e restaurar o
+valor inicial no encerramento:
 
 ```bash
 scrcpy --show-touches
@@ -363,59 +518,137 @@ 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 `Ctrl`+`r` para mudar entre os modos Retrato e Paisagem.
+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 tiver suporte para o modo requisitado.
+Note que só será rotacionado se a aplicação em primeiro plano suportar a
+orientação requisitada.
 
-#### Copiar-Colar
+#### Copiar-colar
 
-É possível sincronizar áreas de transferência entre computador e o dispositivo,
-para ambas direções:
+Sempre que a área de transferência do Android muda, é automaticamente sincronizada com a
+área de transferência do computador.
 
- - `Ctrl`+`c` copia a área de transferência do dispositivo para a área de trasferência do computador;
- - `Ctrl`+`Shift`+`v` copia a área de transferência do computador para a área de transferência do dispositivo;
- - `Ctrl`+`v` _cola_ a área de transferência do computador como uma sequência de eventos de texto (mas
-   quebra caracteres não-ASCII).
+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)
 
-#### Preferências de injeção de texto
+Isso tipicamente funciona como esperado.
 
-Existe dois tipos de [eventos][textevents] gerados ao digitar um texto:
- - _eventos de teclas_, sinalizando que a tecla foi pressionada ou solta;
+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 teclas, assim teclados comportam-se
-como esperado em jogos (normalmente para tecladas WASD)
+Por padrão, letras são injetadas usando eventos de tecla, assim o teclado comporta-se
+como esperado em jogos (normalmente para teclas WASD).
 
-Mas isto pode [causar problemas][prefertext]. Se você encontrar tal problema,
-pode evitá-lo usando:
+Mas isso pode [causar problemas][prefertext]. Se você encontrar tal problema, você
+pode evitá-lo com:
 
 ```bash
 scrcpy --prefer-text
 ```
 
-(mas isto vai quebrar o comportamento do teclado em jogos)
+(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
 
 
-### Transferência de arquivo
+#### 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_.
+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 o dispositivo
+#### Enviar arquivo para dispositivo
 
-Para enviar um arquivo para o diretório `/sdcard/` no dispositivo, arraste e solte um arquivo não APK para a janela do
-_scrcpy_.
+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.
 
@@ -428,45 +661,73 @@ scrcpy --push-target /sdcard/foo/bar/
 
 ### Encaminhamento de áudio
 
-Áudio não é encaminhando pelo _scrcpy_. Use [USBaudio] (Apenas linux).
+Áudio não é encaminhado pelo _scrcpy_. Use [sndcpy].
 
 Também veja [issue #14].
 
-[USBaudio]: https://github.com/rom1v/usbaudio
+[sndcpy]: https://github.com/rom1v/sndcpy
 [issue #14]: https://github.com/Genymobile/scrcpy/issues/14
 
 
 ## Atalhos
 
- | Ação                                                          |   Atalho                        |   Atalho (macOS)
- | ------------------------------------------------------------- |:------------------------------- |:-----------------------------
- | Alternar para modo de tela cheia                              | `Ctrl`+`f`                      | `Cmd`+`f`
- | Redimensionar janela para pixel-perfect(Escala 1:1)           | `Ctrl`+`g`                      | `Cmd`+`g`
- | Redimensionar janela para tirar as bordas pretas              | `Ctrl`+`x` \| _Clique-duplo¹_   | `Cmd`+`x`  \| _Clique-duplo¹_
- | Clicar em `HOME`                                              | `Ctrl`+`h` \| _Clique-central_  | `Ctrl`+`h` \| _Clique-central_
- | Clicar em `BACK`                                              | `Ctrl`+`b` \| _Clique-direito²_ | `Cmd`+`b`  \| _Clique-direito²_
- | Clicar em `APP_SWITCH`                                        | `Ctrl`+`s`                      | `Cmd`+`s`
- | Clicar em `MENU`                                              | `Ctrl`+`m`                      | `Ctrl`+`m`
- | Clicar em `VOLUME_UP`                                         | `Ctrl`+`↑` _(cima)_             | `Cmd`+`↑` _(cima)_
- | Clicar em `VOLUME_DOWN`                                       | `Ctrl`+`↓` _(baixo)_            | `Cmd`+`↓` _(baixo)_
- | Clicar em `POWER`                                             | `Ctrl`+`p`                      | `Cmd`+`p`
- | Ligar                                                         | _Clique-direito²_               | _Clique-direito²_
- | Desligar a tela do dispositivo                                | `Ctrl`+`o`                      | `Cmd`+`o`
- | Rotacionar tela do dispositivo                                | `Ctrl`+`r`                      | `Cmd`+`r`
- | Expandir painel de notificação                                | `Ctrl`+`n`                      | `Cmd`+`n`
- | Esconder painel de notificação                                | `Ctrl`+`Shift`+`n`              | `Cmd`+`Shift`+`n`
- | Copiar área de transferência do dispositivo para o computador | `Ctrl`+`c`                      | `Cmd`+`c`
- | Colar área de transferência do computador para o dispositivo  | `Ctrl`+`v`                      | `Cmd`+`v`
- | Copiar área de transferência do computador para dispositivo   | `Ctrl`+`Shift`+`v`              | `Cmd`+`Shift`+`v`
- | Ativar/desativar contador de FPS(Frames por segundo)          | `Ctrl`+`i`                      | `Cmd`+`i`
+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._  
-_²Botão direito liga a tela se ela estiver desligada, clique BACK para o contrário._
+_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 específico _adb_, configure seu caminho na variável de ambiente `ADB`:
+Para usar um binário _adb_ específico, configure seu caminho na variável de ambiente
+`ADB`:
 
     ADB=/caminho/para/adb scrcpy
 
@@ -478,7 +739,7 @@ Para sobrepor o caminho do arquivo `scrcpy-server`, configure seu caminho em
 
 ## Por quê _scrcpy_?
 
-Um colega me desafiou a encontrar um nome impronunciável como [gnirehtet].
+Um colega me desafiou a encontrar um nome tão impronunciável quanto [gnirehtet].
 
 [`strcpy`] copia uma **str**ing; `scrcpy` copia uma **scr**een.
 
@@ -495,12 +756,12 @@ Veja [BUILD].
 
 ## Problemas comuns
 
-Veja [FAQ](FAQ.md).
+Veja o [FAQ](FAQ.md).
 
 
 ## Desenvolvedores
 
-Leia a  [developers page].
+Leia a [página dos desenvolvedores][developers page].
 
 [developers page]: DEVELOP.md
 
@@ -508,7 +769,7 @@ Leia a  [developers page].
 ## Licença
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2020 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.

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

@@ -1,11 +1,11 @@
 src = [
     'src/main.c',
+    'src/adb.c',
     'src/cli.c',
-    'src/command.c',
+    'src/compat.c',
     'src/control_msg.c',
     'src/controller.c',
     'src/decoder.c',
-    'src/device.c',
     'src/device_msg.c',
     'src/event_converter.c',
     'src/file_handler.c',
@@ -21,9 +21,28 @@ src = [
     'src/tiny_xpm.c',
     'src/video_buffer.c',
     'src/util/net.c',
-    'src/util/str_util.c'
+    'src/util/process.c',
+    'src/util/str_util.c',
+    'src/util/thread.c',
 ]
 
+if host_machine.system() == 'windows'
+    src += [ 'src/sys/win/process.c' ]
+else
+    src += [ 'src/sys/unix/process.c' ]
+endif
+
+v4l2_support = host_machine.system() == 'linux'
+if v4l2_support
+    src += [ 'src/v4l2_sink.c' ]
+endif
+
+check_functions = [
+    'strdup'
+]
+
+cc = meson.get_compiler('c')
+
 if not get_option('crossbuild_windows')
 
     # native build
@@ -34,11 +53,13 @@ if not get_option('crossbuild_windows')
         dependency('sdl2'),
     ]
 
+    if v4l2_support
+        dependencies += dependency('libavdevice')
+    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'
@@ -73,19 +94,18 @@ else
 
 endif
 
-cc = meson.get_compiler('c')
-
 if host_machine.system() == 'windows'
-    src += [ 'src/sys/win/command.c' ]
     dependencies += cc.find_library('ws2_32')
-else
-    src += [ 'src/sys/unix/command.c' ]
 endif
 
 conf = configuration_data()
 
-# expose the build type
-conf.set('NDEBUG', get_option('buildtype') != 'debug')
+foreach f : check_functions
+  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())
@@ -102,48 +122,28 @@ conf.set('PORTABLE', get_option('portable'))
 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 orientation
-# natural device orientation is 0 and each increment adds 90 degrees
-# counterclockwise
-# overridden by option --lock-video-orientation
-conf.set('DEFAULT_LOCK_VIDEO_ORIENTATION', '-1')  # -1: unlocked
-
 # the default video bitrate, in bits/second
 # overridden by option --bit-rate
 conf.set('DEFAULT_BIT_RATE', '8000000')  # 8Mbps
 
-# enable High DPI support
-conf.set('HIDPI_SUPPORT', get_option('hidpi_support'))
-
-# disable console on Windows
-conf.set('WINDOWS_NOCONSOLE', get_option('windows_noconsole'))
-
 # run a server debugger and wait for a client to be attached
 conf.set('SERVER_DEBUGGER', get_option('server_debugger'))
 
 # select the debugger method ('old' for Android < 9, 'new' for Android >= 9)
 conf.set('SERVER_DEBUGGER_METHOD_NEW', get_option('server_debugger_method') == 'new')
 
+# enable V4L2 support (linux only)
+conf.set('HAVE_V4L2', v4l2_support)
+
 configure_file(configuration: conf, output: 'config.h')
 
 src_dir = include_directories('src')
 
-if get_option('windows_noconsole')
-    link_args = [ '-Wl,--subsystem,windows' ]
-else
-    link_args = []
-endif
-
 executable('scrcpy', src,
            dependencies: dependencies,
            include_directories: src_dir,
            install: true,
-           c_args: [],
-           link_args: link_args)
+           c_args: [])
 
 install_man('scrcpy.1')
 

app/scrcpy.1

@@ -56,10 +56,18 @@ The list of possible display ids can be listed by "adb shell dumpsys display"
 
 Default is 0.
 
+.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.
@@ -69,10 +77,18 @@ Start in fullscreen.
 Print this help.
 
 .TP
-.BI "\-\-lock\-video\-orientation " value
-Lock video orientation to \fIvalue\fR. Possible values are -1 (unlocked), 0, 1, 2 and 3. Natural device orientation is 0, and each increment adds a 90 degrees otation counterclockwise.
+.B \-\-legacy\-paste
+Inject computer clipboard text as a sequence of key events on Ctrl+v (like MOD+Shift+v).
 
-Default is -1 (unlocked).
+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 otation counterclockwise.
+
+Default is "unlocked".
+
+Passing the option without argument is equivalent to passing "initial".
 
 .TP
 .BI "\-\-max\-fps " value
@@ -92,14 +108,14 @@ Disable device control (mirror the device in read\-only).
 .B \-N, \-\-no\-display
 Do not display device (only when screen recording is enabled).
 
-.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
 .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.
@@ -117,7 +133,7 @@ but breaks the expected behavior of alpha keys in games (typically WASD).
 .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/".
+Default is "/sdcard/Download/".
 
 .TP
 .BI "\-r, \-\-record " file
@@ -141,10 +157,6 @@ Supported names are currently "direct3d", "opengl", "opengles2", "opengles", "me
 .UR https://wiki.libsdl.org/SDL_HINT_RENDER_DRIVER
 .UE
 
-.TP
-.B \-\-render\-expired\-frames
-By default, to minimize latency, scrcpy always renders the last available decoded frame, and drops any previous ones. This flag forces to render all frames, at a cost of a possible increased latency.
-
 .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.
@@ -174,8 +186,10 @@ Enable "show touches" on start, restore the initial value on exit.
 It only shows physical touches (not clicks from scrcpy).
 
 .TP
-.B \-v, \-\-version
-Print the version of scrcpy.
+.BI "\-\-v4l2-sink " /dev/videoN
+Output to v4l2loopback device.
+
+It requires to lock the video orientation (see --lock-video-orientation).
 
 .TP
 .BI "\-V, \-\-verbosity " value
@@ -183,6 +197,10 @@ Set the log level ("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.
@@ -199,30 +217,30 @@ Set a custom window title.
 .BI "\-\-window\-x " value
 Set the initial window horizontal position.
 
-Default is "auto".\n
+Default is "auto".
 
 .TP
 .BI "\-\-window\-y " value
 Set the initial window vertical position.
 
-Default is "auto".\n
+Default is "auto".
 
 .TP
 .BI "\-\-window\-width " value
 Set the initial window width.
 
-Default is 0 (automatic).\n
+Default is 0 (automatic).
 
 .TP
 .BI "\-\-window\-height " value
 Set the initial window height.
 
-Default is 0 (automatic).\n
+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 \-\-shortcut-mod.
+Alt or (left) Super, but it can be configured by \-\-shortcut-mod (see above).
 
 .TP
 .B MOD+f
@@ -316,6 +334,10 @@ Inject computer clipboard text as a sequence of key events
 .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

app/src/adb.c

@@ -1,12 +1,10 @@
-#include "command.h"
+#include "adb.h"
 
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
-#include "config.h"
-#include "common.h"
 #include "util/log.h"
 #include "util/str_util.h"
 
@@ -70,7 +68,7 @@ show_adb_installation_msg() {
         {"pacman", "pacman -S android-tools"},
     };
     for (size_t i = 0; i < ARRAY_LEN(pkg_managers); ++i) {
-        if (cmd_search(pkg_managers[i].binary)) {
+        if (search_executable(pkg_managers[i].binary)) {
             LOGI("You may install 'adb' by \"%s\"", pkg_managers[i].command);
             return;
         }
@@ -118,7 +116,7 @@ adb_execute(const char *serial, const char *const adb_cmd[], size_t len) {
 
     memcpy(&cmd[i], adb_cmd, len * sizeof(const char *));
     cmd[len + i] = NULL;
-    enum process_result r = cmd_execute(cmd, &process);
+    enum process_result r = process_execute(cmd, &process);
     if (r != PROCESS_SUCCESS) {
         show_adb_err_msg(r, cmd);
         return PROCESS_NONE;
@@ -175,7 +173,7 @@ adb_push(const char *serial, const char *local, const char *remote) {
     }
     remote = strquote(remote);
     if (!remote) {
-        SDL_free((void *) local);
+        free((void *) local);
         return PROCESS_NONE;
     }
 #endif
@@ -184,8 +182,8 @@ adb_push(const char *serial, const char *local, const char *remote) {
     process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 
 #ifdef __WINDOWS__
-    SDL_free((void *) remote);
-    SDL_free((void *) local);
+    free((void *) remote);
+    free((void *) local);
 #endif
 
     return proc;
@@ -206,26 +204,8 @@ adb_install(const char *serial, const char *local) {
     process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 
 #ifdef __WINDOWS__
-    SDL_free((void *) local);
+    free((void *) local);
 #endif
 
     return proc;
 }
-
-bool
-process_check_success(process_t proc, const char *name) {
-    if (proc == PROCESS_NONE) {
-        LOGE("Could not execute \"%s\"", name);
-        return false;
-    }
-    exit_code_t exit_code;
-    if (!cmd_simple_wait(proc, &exit_code)) {
-        if (exit_code != NO_EXIT_CODE) {
-            LOGE("\"%s\" returned with value %" PRIexitcode, name, exit_code);
-        } else {
-            LOGE("\"%s\" exited unexpectedly", name);
-        }
-        return false;
-    }
-    return true;
-}

app/src/adb.h

@@ -0,0 +1,34 @@
+#ifndef SC_ADB_H
+#define SC_ADB_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <inttypes.h>
+
+#include "util/process.h"
+
+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);
+
+#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/cli.c

@@ -6,11 +6,13 @@
 #include <stdio.h>
 #include <unistd.h>
 
-#include "config.h"
 #include "scrcpy.h"
 #include "util/log.h"
 #include "util/str_util.h"
 
+#define STR_IMPL_(x) #x
+#define STR(x) STR_IMPL_(x)
+
 void
 scrcpy_print_usage(const char *arg0) {
     fprintf(stderr,
@@ -24,7 +26,7 @@ scrcpy_print_usage(const char *arg0) {
         "    -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"
+        "        Default is " STR(DEFAULT_BIT_RATE) ".\n"
         "\n"
         "    --codec-options key[:type]=value[,...]\n"
         "        Set a list of comma-separated key:type=value options for the\n"
@@ -53,22 +55,39 @@ scrcpy_print_usage(const char *arg0) {
         "\n"
         "        Default is 0.\n"
         "\n"
+        "    --encoder name\n"
+        "        Use a specific MediaCodec encoder (must be a H.264 encoder).\n"
+        "\n"
         "    --force-adb-forward\n"
         "        Do not attempt to use \"adb reverse\" to connect to the\n"
         "        the device.\n"
         "\n"
+        "    --forward-all-clicks\n"
+        "        By default, right-click triggers BACK (or POWER on) and\n"
+        "        middle-click triggers HOME. This option disables these\n"
+        "        shortcuts and forward the clicks to the device instead.\n"
+        "\n"
         "    -f, --fullscreen\n"
         "        Start in fullscreen.\n"
         "\n"
         "    -h, --help\n"
         "        Print this help.\n"
         "\n"
-        "    --lock-video-orientation value\n"
+        "    --legacy-paste\n"
+        "        Inject computer clipboard text as a sequence of key events\n"
+        "        on Ctrl+v (like MOD+Shift+v).\n"
+        "        This is a workaround for some devices not behaving as\n"
+        "        expected when setting the device clipboard programmatically.\n"
+        "\n"
+        "    --lock-video-orientation [value]\n"
         "        Lock video orientation to value.\n"
-        "        Possible values are -1 (unlocked), 0, 1, 2 and 3.\n"
+        "        Possible values are \"unlocked\", \"initial\" (locked to the\n"
+        "        initial orientation), 0, 1, 2 and 3.\n"
         "        Natural device orientation is 0, and each increment adds a\n"
         "        90 degrees rotation counterclockwise.\n"
-        "        Default is %d%s.\n"
+        "        Default is \"unlocked\".\n"
+        "        Passing the option without argument is equivalent to passing\n"
+        "        \"initial\".\n"
         "\n"
         "    --max-fps value\n"
         "        Limit the frame rate of screen capture (officially supported\n"
@@ -78,7 +97,7 @@ scrcpy_print_usage(const char *arg0) {
         "        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"
+        "        Default is 0 (unlimited).\n"
         "\n"
         "    -n, --no-control\n"
         "        Disable device control (mirror the device in read-only).\n"
@@ -87,17 +106,18 @@ scrcpy_print_usage(const char *arg0) {
         "        Do not display device (only when screen recording is\n"
         "        enabled).\n"
         "\n"
+        "    --no-key-repeat\n"
+        "        Do not forward repeated key events when a key is held down.\n"
+        "\n"
         "    --no-mipmaps\n"
         "        If the renderer is OpenGL 3.0+ or OpenGL ES 2.0+, then\n"
         "        mipmaps are automatically generated to improve downscaling\n"
         "        quality. This option disables the generation of mipmaps.\n"
         "\n"
-        "    --no-key-repeat\n"
-        "        Do not forward repeated key events when a key is held down.\n"
-        "\n"
         "    -p, --port port[:port]\n"
         "        Set the TCP port (range) used by the client to listen.\n"
-        "        Default is %d:%d.\n"
+        "        Default is " STR(DEFAULT_LOCAL_PORT_RANGE_FIRST) ":"
+                              STR(DEFAULT_LOCAL_PORT_RANGE_LAST) ".\n"
         "\n"
         "    --prefer-text\n"
         "        Inject alpha characters and space as text events instead of\n"
@@ -109,7 +129,7 @@ scrcpy_print_usage(const char *arg0) {
         "    --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"
+        "        Default is \"/sdcard/Download/\".\n"
         "\n"
         "    -r, --record file.mp4\n"
         "        Record screen to file.\n"
@@ -126,12 +146,6 @@ scrcpy_print_usage(const char *arg0) {
         "        \"opengles2\", \"opengles\", \"metal\" and \"software\".\n"
         "        <https://wiki.libsdl.org/SDL_HINT_RENDER_DRIVER>\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"
         "    --rotation value\n"
         "        Set the initial display rotation.\n"
         "        Possibles values are 0, 1, 2 and 3. Each increment adds a 90\n"
@@ -162,9 +176,13 @@ scrcpy_print_usage(const char *arg0) {
         "        on exit.\n"
         "        It only shows physical touches (not clicks from scrcpy).\n"
         "\n"
-        "    -v, --version\n"
-        "        Print the version of scrcpy.\n"
+#ifdef HAVE_V4L2
+        "    --v4l2-sink /dev/videoN\n"
+        "        Output to v4l2loopback device.\n"
+        "        It requires to lock the video orientation (see\n"
+        "        --lock-video-orientation).\n"
         "\n"
+#endif
         "    -V, --verbosity value\n"
         "        Set the log level (debug, info, warn or error).\n"
 #ifndef NDEBUG
@@ -172,6 +190,9 @@ scrcpy_print_usage(const char *arg0) {
 #else
         "        Default is info.\n"
 #endif
+        "\n"
+        "    -v, --version\n"
+        "        Print the version of scrcpy.\n"
         "\n"
         "    -w, --stay-awake\n"
         "        Keep the device on while scrcpy is running, when the device\n"
@@ -196,14 +217,14 @@ scrcpy_print_usage(const char *arg0) {
         "        Default is 0 (automatic).\n"
         "\n"
         "    --window-height value\n"
-        "        Set the initial window width.\n"
+        "        Set the initial window height.\n"
         "        Default is 0 (automatic).\n"
         "\n"
         "Shortcuts:\n"
         "\n"
         "    In the following list, MOD is the shortcut modifier. By default,\n"
         "    it's (left) Alt or (left) Super, but it can be configured by\n"
-        "    --shortcut-mod.\n"
+        "    --shortcut-mod (see above).\n"
         "\n"
         "    MOD+f\n"
         "        Switch fullscreen mode\n"
@@ -279,14 +300,12 @@ scrcpy_print_usage(const char *arg0) {
         "    MOD+i\n"
         "        Enable/disable FPS counter (print frames/second in logs)\n"
         "\n"
+        "    Ctrl+click-and-move\n"
+        "        Pinch-to-zoom from the center of the screen\n"
+        "\n"
         "    Drag & drop APK file\n"
         "        Install APK from computer\n"
-        "\n",
-        arg0,
-        DEFAULT_BIT_RATE,
-        DEFAULT_LOCK_VIDEO_ORIENTATION, DEFAULT_LOCK_VIDEO_ORIENTATION >= 0 ? "" : " (unlocked)",
-        DEFAULT_MAX_SIZE, DEFAULT_MAX_SIZE ? "" : " (unlimited)",
-        DEFAULT_LOCAL_PORT_RANGE_FIRST, DEFAULT_LOCAL_PORT_RANGE_LAST);
+        "\n", arg0);
 }
 
 static bool
@@ -374,15 +393,27 @@ parse_max_fps(const char *s, uint16_t *max_fps) {
 }
 
 static bool
-parse_lock_video_orientation(const char *s, int8_t *lock_video_orientation) {
+parse_lock_video_orientation(const char *s,
+                             enum sc_lock_video_orientation *lock_mode) {
+    if (!s || !strcmp(s, "initial")) {
+        // Without argument, lock the initial orientation
+        *lock_mode = SC_LOCK_VIDEO_ORIENTATION_INITIAL;
+        return true;
+    }
+
+    if (!strcmp(s, "unlocked")) {
+        *lock_mode = SC_LOCK_VIDEO_ORIENTATION_UNLOCKED;
+        return true;
+    }
+
     long value;
-    bool ok = parse_integer_arg(s, &value, false, -1, 3,
+    bool ok = parse_integer_arg(s, &value, false, 0, 3,
                                 "lock video orientation");
     if (!ok) {
         return false;
     }
 
-    *lock_video_orientation = (int8_t) value;
+    *lock_mode = (enum sc_lock_video_orientation) value;
     return true;
 }
 
@@ -461,14 +492,14 @@ parse_port_range(const char *s, struct sc_port_range *port_range) {
 }
 
 static bool
-parse_display_id(const char *s, uint16_t *display_id) {
+parse_display_id(const char *s, uint32_t *display_id) {
     long value;
-    bool ok = parse_integer_arg(s, &value, false, 0, 0xFFFF, "display id");
+    bool ok = parse_integer_arg(s, &value, false, 0, 0x7FFFFFFF, "display id");
     if (!ok) {
         return false;
     }
 
-    *display_id = (uint16_t) value;
+    *display_id = (uint32_t) value;
     return true;
 }
 
@@ -529,7 +560,9 @@ parse_shortcut_mods_item(const char *item, size_t len) {
         } else if (STREQ("rsuper", item, key_len)) {
             mod |= SC_MOD_RSUPER;
         } else {
-            LOGW("Unknown modifier key: %.*s", (int) key_len, item);
+            LOGE("Unknown modifier key: %.*s "
+                 "(must be one of: lctrl, rctrl, lalt, ralt, lsuper, rsuper)",
+                 (int) key_len, item);
             return 0;
         }
 #undef STREQ
@@ -646,6 +679,11 @@ guess_record_format(const char *filename) {
 #define OPT_DISABLE_SCREENSAVER    1020
 #define OPT_SHORTCUT_MOD           1021
 #define OPT_NO_KEY_REPEAT          1022
+#define OPT_FORWARD_ALL_CLICKS     1023
+#define OPT_LEGACY_PASTE           1024
+#define OPT_ENCODER_NAME           1025
+#define OPT_POWER_OFF_ON_CLOSE     1026
+#define OPT_V4L2_SINK              1027
 
 bool
 scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
@@ -657,18 +695,22 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
         {"disable-screensaver",    no_argument,       NULL,
                                                   OPT_DISABLE_SCREENSAVER},
         {"display",                required_argument, NULL, OPT_DISPLAY_ID},
+        {"encoder",                required_argument, NULL, OPT_ENCODER_NAME},
         {"force-adb-forward",      no_argument,       NULL,
                                                   OPT_FORCE_ADB_FORWARD},
+        {"forward-all-clicks",     no_argument,       NULL,
+                                                  OPT_FORWARD_ALL_CLICKS},
         {"fullscreen",             no_argument,       NULL, 'f'},
         {"help",                   no_argument,       NULL, 'h'},
-        {"lock-video-orientation", required_argument, NULL,
+        {"legacy-paste",           no_argument,       NULL, OPT_LEGACY_PASTE},
+        {"lock-video-orientation", optional_argument, NULL,
                                                   OPT_LOCK_VIDEO_ORIENTATION},
         {"max-fps",                required_argument, NULL, OPT_MAX_FPS},
         {"max-size",               required_argument, NULL, 'm'},
         {"no-control",             no_argument,       NULL, 'n'},
         {"no-display",             no_argument,       NULL, 'N'},
-        {"no-mipmaps",             no_argument,       NULL, OPT_NO_MIPMAPS},
         {"no-key-repeat",          no_argument,       NULL, OPT_NO_KEY_REPEAT},
+        {"no-mipmaps",             no_argument,       NULL, OPT_NO_MIPMAPS},
         {"port",                   required_argument, NULL, 'p'},
         {"prefer-text",            no_argument,       NULL, OPT_PREFER_TEXT},
         {"push-target",            required_argument, NULL, OPT_PUSH_TARGET},
@@ -683,6 +725,9 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
         {"show-touches",           no_argument,       NULL, 't'},
         {"stay-awake",             no_argument,       NULL, 'w'},
         {"turn-screen-off",        no_argument,       NULL, 'S'},
+#ifdef HAVE_V4L2
+        {"v4l2-sink",              required_argument, NULL, OPT_V4L2_SINK},
+#endif
         {"verbosity",              required_argument, NULL, 'V'},
         {"version",                no_argument,       NULL, 'v'},
         {"window-title",           required_argument, NULL, OPT_WINDOW_TITLE},
@@ -692,6 +737,8 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
         {"window-height",          required_argument, NULL, OPT_WINDOW_HEIGHT},
         {"window-borderless",      no_argument,       NULL,
                                                   OPT_WINDOW_BORDERLESS},
+        {"power-off-on-close",     no_argument,       NULL,
+                                                  OPT_POWER_OFF_ON_CLOSE},
         {NULL,                     0,                 NULL, 0  },
     };
 
@@ -744,7 +791,8 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
                 }
                 break;
             case OPT_LOCK_VIDEO_ORIENTATION:
-                if (!parse_lock_video_orientation(optarg, &opts->lock_video_orientation)) {
+                if (!parse_lock_video_orientation(optarg,
+                        &opts->lock_video_orientation)) {
                     return false;
                 }
                 break;
@@ -789,7 +837,8 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
                 opts->stay_awake = true;
                 break;
             case OPT_RENDER_EXPIRED_FRAMES:
-                opts->render_expired_frames = true;
+                LOGW("Option --render-expired-frames has been removed. This "
+                     "flag has been ignored.");
                 break;
             case OPT_WINDOW_TITLE:
                 opts->window_title = optarg;
@@ -840,6 +889,9 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
             case OPT_CODEC_OPTIONS:
                 opts->codec_options = optarg;
                 break;
+            case OPT_ENCODER_NAME:
+                opts->encoder_name = optarg;
+                break;
             case OPT_FORCE_ADB_FORWARD:
                 opts->force_adb_forward = true;
                 break;
@@ -851,16 +903,45 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
                     return false;
                 }
                 break;
+            case OPT_FORWARD_ALL_CLICKS:
+                opts->forward_all_clicks = true;
+                break;
+            case OPT_LEGACY_PASTE:
+                opts->legacy_paste = true;
+                break;
+            case OPT_POWER_OFF_ON_CLOSE:
+                opts->power_off_on_close = true;
+                break;
+#ifdef HAVE_V4L2
+            case OPT_V4L2_SINK:
+                opts->v4l2_device = optarg;
+                break;
+#endif
             default:
                 // getopt prints the error message on stderr
                 return false;
         }
     }
 
+#ifdef HAVE_V4L2
+    if (!opts->display && !opts->record_filename && !opts->v4l2_device) {
+        LOGE("-N/--no-display requires either screen recording (-r/--record)"
+             " or sink to v4l2loopback device (--v4l2-sink)");
+        return false;
+    }
+
+    if (opts->v4l2_device && opts->lock_video_orientation
+                             == SC_LOCK_VIDEO_ORIENTATION_UNLOCKED) {
+        LOGI("Video orientation is locked for v4l2 sink. "
+             "See --lock-video-orientation.");
+        opts->lock_video_orientation = SC_LOCK_VIDEO_ORIENTATION_INITIAL;
+    }
+#else
     if (!opts->display && !opts->record_filename) {
         LOGE("-N/--no-display requires screen recording (-r/--record)");
         return false;
     }
+#endif
 
     int index = optind;
     if (index < argc) {

app/src/cli.h

@@ -1,9 +1,10 @@
 #ifndef SCRCPY_CLI_H
 #define SCRCPY_CLI_H
 
+#include "common.h"
+
 #include <stdbool.h>
 
-#include "config.h"
 #include "scrcpy.h"
 
 struct scrcpy_cli_args {

app/src/common.h

@@ -1,35 +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 {
-    uint16_t width;
-    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;
-};
-
-struct port_range {
-    uint16_t first;
-    uint16_t last;
-};
+#define container_of(ptr, type, member) \
+    ((type *) (((char *) (ptr)) - offsetof(type, member)))
 
 #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
-//   Add a new audio/video encoding and decoding API with decoupled input
-//   and output -- avcodec_send_packet(), avcodec_receive_frame(),
-//   avcodec_send_frame() and avcodec_receive_packet().
-#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 37, 100)
-# define SCRCPY_LAVF_HAS_NEW_ENCODING_DECODING_API
+// 2018-01-28 - ea3672b7d6 - lavf 58.7.100 - avformat.h
+//   Deprecate AVFormatContext filename field which had limited length, use the
+//   new dynamically allocated url field instead.
+//
+// 2018-01-28 - ea3672b7d6 - lavf 58.7.100 - avformat.h
+//   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)
@@ -48,4 +48,8 @@
 # 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

@@ -1,9 +1,9 @@
 #include "control_msg.h"
 
 #include <assert.h>
+#include <stdlib.h>
 #include <string.h>
 
-#include "config.h"
 #include "util/buffer_util.h"
 #include "util/log.h"
 #include "util/str_util.h"
@@ -67,6 +67,9 @@ 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: {
             buf[1] = !!msg->set_clipboard.paste;
             size_t len = write_string(msg->set_clipboard.text,
@@ -77,9 +80,9 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
         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
@@ -94,10 +97,10 @@ 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

@@ -1,14 +1,15 @@
 #ifndef CONTROLMSG_H
 #define CONTROLMSG_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 
-#include "config.h"
 #include "android/input.h"
 #include "android/keycodes.h"
-#include "common.h"
+#include "coords.h"
 
 #define CONTROL_MSG_MAX_SIZE (1 << 18) // 256k
 
@@ -17,6 +18,7 @@
 #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,
@@ -25,7 +27,8 @@ enum control_msg_type {
     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,
@@ -48,7 +51,7 @@ struct control_msg {
             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;
@@ -63,7 +66,11 @@ struct control_msg {
             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 {

app/src/controller.c

@@ -2,26 +2,27 @@
 
 #include <assert.h>
 
-#include "config.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 bool
 controller_init(struct controller *controller, socket_t 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);
-    SDL_DestroyMutex(controller->mutex);
+    sc_cond_destroy(&controller->msg_cond);
+    sc_mutex_destroy(&controller->mutex);
 
     struct control_msg msg;
     while (cbuf_take(&controller->queue, &msg)) {
@@ -47,13 +48,13 @@ controller_destroy(struct controller *controller) {
 bool
 controller_push_msg(struct controller *controller,
                       const struct control_msg *msg) {
-    mutex_lock(controller->mutex);
+    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;
 }
 
@@ -61,12 +62,12 @@ static bool
 process_msg(struct controller *controller,
               const struct control_msg *msg) {
     static unsigned char serialized_msg[CONTROL_MSG_MAX_SIZE];
-    int length = control_msg_serialize(msg, serialized_msg);
+    size_t length = control_msg_serialize(msg, serialized_msg);
     if (!length) {
         return false;
     }
     int w = net_send_all(controller->control_socket, serialized_msg, length);
-    return w == length;
+    return (size_t) w == length;
 }
 
 static int
@@ -74,20 +75,20 @@ 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);
         assert(non_empty);
         (void) non_empty;
-        mutex_unlock(controller->mutex);
+        sc_mutex_unlock(&controller->mutex);
 
         bool ok = process_msg(controller, &msg);
         control_msg_destroy(&msg);
@@ -103,16 +104,16 @@ bool
 controller_start(struct controller *controller) {
     LOGD("Starting controller thread");
 
-    controller->thread = SDL_CreateThread(run_controller, "controller",
-                                          controller);
-    if (!controller->thread) {
+    bool ok = sc_thread_create(&controller->thread, run_controller,
+                               "controller", controller);
+    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;
     }
 
@@ -121,14 +122,14 @@ 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);
-    mutex_unlock(controller->mutex);
+    sc_cond_signal(&controller->msg_cond);
+    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

@@ -1,23 +1,23 @@
 #ifndef CONTROLLER_H
 #define CONTROLLER_H
 
-#include <stdbool.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
+#include "common.h"
+
+#include <stdbool.h>
 
-#include "config.h"
 #include "control_msg.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;
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
-    SDL_cond *msg_cond;
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond msg_cond;
     bool stopped;
     struct control_msg_queue queue;
     struct receiver receiver;

app/src/coords.h

@@ -0,0 +1,24 @@
+#ifndef SC_COORDS
+#define SC_COORDS
+
+#include <stdint.h>
+
+struct size {
+    uint16_t width;
+    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/decoder.c

@@ -1,42 +1,43 @@
 #include "decoder.h"
 
 #include <libavformat/avformat.h>
-#include <libavutil/time.h>
-#include <SDL2/SDL_events.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
-#include <unistd.h>
 
-#include "config.h"
-#include "compat.h"
 #include "events.h"
-#include "recorder.h"
 #include "video_buffer.h"
-#include "util/buffer_util.h"
+#include "trait/frame_sink.h"
 #include "util/log.h"
 
-// set the decoded frame as ready for rendering, and notify
+/** Downcast packet_sink to decoder */
+#define DOWNCAST(SINK) container_of(SINK, struct decoder, packet_sink)
+
 static void
-push_frame(struct decoder *decoder) {
-    bool previous_frame_skipped;
-    video_buffer_offer_decoded_frame(decoder->video_buffer,
-                                     &previous_frame_skipped);
-    if (previous_frame_skipped) {
-        // the previous EVENT_NEW_FRAME will consume this frame
-        return;
+decoder_close_first_sinks(struct decoder *decoder, unsigned count) {
+    while (count) {
+        struct sc_frame_sink *sink = decoder->sinks[--count];
+        sink->ops->close(sink);
     }
-    static SDL_Event new_frame_event = {
-        .type = EVENT_NEW_FRAME,
-    };
-    SDL_PushEvent(&new_frame_event);
 }
 
-void
-decoder_init(struct decoder *decoder, struct video_buffer *vb) {
-    decoder->video_buffer = vb;
+static inline void
+decoder_close_sinks(struct decoder *decoder) {
+    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) {
@@ -50,52 +51,110 @@ 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:
-// <http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=7fc329e2dd6226dfecaa4a1d7adf353bf2773726>
-#ifdef SCRCPY_LAVF_HAS_NEW_ENCODING_DECODING_API
-    int ret;
-    if ((ret = avcodec_send_packet(decoder->codec_ctx, packet)) < 0) {
+    bool is_config = packet->pts == AV_NOPTS_VALUE;
+    if (is_config) {
+        // nothing to do
+        return true;
+    }
+
+    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,
-                                decoder->video_buffer->decoding_frame);
+    ret = avcodec_receive_frame(decoder->codec_ctx, decoder->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
-decoder_interrupt(struct decoder *decoder) {
-    video_buffer_interrupt(decoder->video_buffer);
+static bool
+decoder_packet_sink_open(struct sc_packet_sink *sink, const AVCodec *codec) {
+    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

@@ -1,31 +1,29 @@
 #ifndef DECODER_H
 #define DECODER_H
 
+#include "common.h"
+
+#include "trait/packet_sink.h"
+
 #include <stdbool.h>
 #include <libavformat/avformat.h>
 
-#include "config.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);
-
-bool
-decoder_open(struct decoder *decoder, const AVCodec *codec);
+decoder_init(struct decoder *decoder);
 
 void
-decoder_close(struct decoder *decoder);
-
-bool
-decoder_push(struct decoder *decoder, const AVPacket *packet);
-
-void
-decoder_interrupt(struct decoder *decoder);
+decoder_add_sink(struct decoder *decoder, struct sc_frame_sink *sink);
 
 #endif

app/src/device.c

@@ -1,24 +0,0 @@
-#include "device.h"
-
-#include "config.h"
-#include "util/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

@@ -1,16 +0,0 @@
-#ifndef DEVICE_H
-#define DEVICE_H
-
-#include <stdbool.h>
-
-#include "config.h"
-#include "common.h"
-#include "util/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

@@ -1,8 +1,8 @@
 #include "device_msg.h"
 
+#include <stdlib.h>
 #include <string.h>
 
-#include "config.h"
 #include "util/buffer_util.h"
 #include "util/log.h"
 
@@ -21,7 +21,7 @@ device_msg_deserialize(const unsigned char *buf, size_t len,
             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;
@@ -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 +1,12 @@
 #ifndef DEVICEMSG_H
 #define DEVICEMSG_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <unistd.h>
 
-#include "config.h"
-
 #define DEVICE_MSG_MAX_SIZE (1 << 18) // 256k
 // type: 1 byte; length: 4 bytes
 #define DEVICE_MSG_TEXT_MAX_LENGTH (DEVICE_MSG_MAX_SIZE - 5)
@@ -19,7 +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/event_converter.c

@@ -1,7 +1,5 @@
 #include "event_converter.h"
 
-#include "config.h"
-
 #define MAP(FROM, TO) case FROM: *to = TO; return true
 #define FAIL default: return false
 
@@ -16,7 +14,7 @@ convert_keycode_action(SDL_EventType from, enum android_keyevent_action *to) {
 
 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;
     }

app/src/event_converter.h

@@ -1,10 +1,11 @@
 #ifndef CONVERT_H
 #define CONVERT_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <SDL2/SDL_events.h>
 
-#include "config.h"
 #include "control_msg.h"
 
 bool

app/src/events.h

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

app/src/file_handler.c

@@ -3,16 +3,14 @@
 #include <assert.h>
 #include <string.h>
 
-#include "config.h"
-#include "command.h"
-#include "util/lock.h"
+#include "adb.h"
 #include "util/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())) {
-        SDL_DestroyMutex(file_handler->mutex);
+    ok = sc_cond_init(&file_handler->event_cond);
+    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);
-            SDL_DestroyMutex(file_handler->mutex);
+            sc_cond_destroy(&file_handler->event_cond);
+            sc_mutex_destroy(&file_handler->mutex);
             return false;
         }
     } else {
@@ -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);
-    SDL_DestroyMutex(file_handler->mutex);
-    SDL_free(file_handler->serial);
+    sc_cond_destroy(&file_handler->event_cond);
+    sc_mutex_destroy(&file_handler->mutex);
+    free(file_handler->serial);
 
     struct file_handler_request req;
     while (cbuf_take(&file_handler->queue, &req)) {
@@ -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;
 }
 
@@ -108,14 +108,14 @@ 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;
         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;
@@ -133,16 +133,16 @@ run_file_handler(void *data) {
                                 file_handler->push_target);
         }
         file_handler->current_process = process;
-        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 (process_check_success(process, "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 (process_check_success(process, "adb push", false)) {
                 LOGI("%s successfully pushed to %s", req.file,
                                                      file_handler->push_target);
             } else {
@@ -151,6 +151,14 @@ run_file_handler(void *data) {
             }
         }
 
+        sc_mutex_lock(&file_handler->mutex);
+        // Close the process (it is necessary already terminated)
+        // Execute this call with mutex locked to avoid race conditions with
+        // file_handler_stop()
+        process_close(file_handler->current_process);
+        file_handler->current_process = PROCESS_NONE;
+        sc_mutex_unlock(&file_handler->mutex);
+
         file_handler_request_destroy(&req);
     }
     return 0;
@@ -160,9 +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",
-                                            file_handler);
-    if (!file_handler->thread) {
+    bool ok = sc_thread_create(&file_handler->thread, run_file_handler,
+                               "file_handler", file_handler);
+    if (!ok) {
         LOGC("Could not start file_handler thread");
         return false;
     }
@@ -172,20 +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 (!cmd_terminate(file_handler->current_process)) {
-            LOGW("Could not terminate install process");
+        if (!process_terminate(file_handler->current_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

@@ -1,13 +1,13 @@
 #ifndef FILE_HANDLER_H
 #define FILE_HANDLER_H
 
-#include <stdbool.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
+#include "common.h"
 
-#include "config.h"
-#include "command.h"
+#include <stdbool.h>
+
+#include "adb.h"
 #include "util/cbuf.h"
+#include "util/thread.h"
 
 typedef enum {
     ACTION_INSTALL_APK,
@@ -24,9 +24,9 @@ struct file_handler_request_queue CBUF(struct file_handler_request, 16);
 struct file_handler {
     char *serial;
     const char *push_target;
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
-    SDL_cond *event_cond;
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond event_cond;
     bool stopped;
     bool initialized;
     process_t current_process;
@@ -49,7 +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

@@ -3,26 +3,24 @@
 #include <assert.h>
 #include <SDL2/SDL_timer.h>
 
-#include "config.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 #define FPS_COUNTER_INTERVAL_MS 1000
 
 bool
 fps_counter_init(struct fps_counter *counter) {
-    counter->mutex = SDL_CreateMutex();
-    if (!counter->mutex) {
+    bool ok = sc_mutex_init(&counter->mutex);
+    if (!ok) {
         return false;
     }
 
-    counter->state_cond = SDL_CreateCond();
-    if (!counter->state_cond) {
-        SDL_DestroyMutex(counter->mutex);
+    ok = sc_cond_init(&counter->state_cond);
+    if (!ok) {
+        sc_mutex_destroy(&counter->mutex);
         return false;
     }
 
-    counter->thread = NULL;
+    counter->thread_started = false;
     atomic_init(&counter->started, 0);
     // no need to initialize the other fields, they are unused until started
 
@@ -31,8 +29,8 @@ fps_counter_init(struct fps_counter *counter) {
 
 void
 fps_counter_destroy(struct fps_counter *counter) {
-    SDL_DestroyCond(counter->state_cond);
-    SDL_DestroyMutex(counter->mutex);
+    sc_cond_destroy(&counter->state_cond);
+    sc_mutex_destroy(&counter->mutex);
 }
 
 static inline bool
@@ -78,10 +76,10 @@ 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 && !is_started(counter)) {
-            cond_wait(counter->state_cond, counter->mutex);
+            sc_cond_wait(&counter->state_cond, &counter->mutex);
         }
         while (!counter->interrupted && is_started(counter)) {
             uint32_t now = SDL_GetTicks();
@@ -91,32 +89,35 @@ run_fps_counter(void *data) {
             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, remaining);
         }
     }
-    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->nr_rendered = 0;
     counter->nr_skipped = 0;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
 
     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
-    if (!counter->thread) {
-        counter->thread =
-            SDL_CreateThread(run_fps_counter, "fps counter", counter);
-        if (!counter->thread) {
+    // counter->thread_started and counter->thread are always accessed from the
+    // same thread, no need to lock
+    if (!counter->thread_started) {
+        bool ok = sc_thread_create(&counter->thread, run_fps_counter,
+                                   "fps counter", counter);
+        if (!ok) {
             LOGE("Could not start FPS counter thread");
             return false;
         }
+
+        counter->thread_started = true;
     }
 
     return true;
@@ -125,7 +126,7 @@ fps_counter_start(struct fps_counter *counter) {
 void
 fps_counter_stop(struct fps_counter *counter) {
     set_started(counter, false);
-    cond_signal(counter->state_cond);
+    sc_cond_signal(&counter->state_cond);
 }
 
 bool
@@ -135,21 +136,25 @@ fps_counter_is_started(struct fps_counter *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) {
-        SDL_WaitThread(counter->thread, NULL);
+    if (counter->thread_started) {
+        // 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);
     }
 }
 
@@ -159,11 +164,11 @@ fps_counter_add_rendered_frame(struct fps_counter *counter) {
         return;
     }
 
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
     uint32_t now = SDL_GetTicks();
     check_interval_expired(counter, now);
     ++counter->nr_rendered;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
 }
 
 void
@@ -172,9 +177,9 @@ fps_counter_add_skipped_frame(struct fps_counter *counter) {
         return;
     }
 
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
     uint32_t now = SDL_GetTicks();
     check_interval_expired(counter, now);
     ++counter->nr_skipped;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
 }

app/src/fps_counter.h

@@ -1,18 +1,20 @@
 #ifndef FPSCOUNTER_H
 #define FPSCOUNTER_H
 
+#include "common.h"
+
 #include <stdatomic.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
 
-#include "config.h"
+#include "util/thread.h"
 
 struct fps_counter {
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
-    SDL_cond *state_cond;
+    sc_thread thread;
+    sc_mutex mutex;
+    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

app/src/input_manager.c

@@ -3,9 +3,7 @@
 #include <assert.h>
 #include <SDL2/SDL_keycode.h>
 
-#include "config.h"
 #include "event_converter.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 static const int ACTION_DOWN = 1;
@@ -54,12 +52,18 @@ is_shortcut_mod(struct input_manager *im, uint16_t sdl_mod) {
 }
 
 void
-input_manager_init(struct input_manager *im,
-                   const struct scrcpy_options *options)
-{
+input_manager_init(struct input_manager *im, struct controller *controller,
+                   struct screen *screen,
+                   const struct scrcpy_options *options) {
+    im->controller = controller;
+    im->screen = screen;
+    im->repeat = 0;
+
     im->control = options->control;
     im->forward_key_repeat = options->forward_key_repeat;
     im->prefer_text = options->prefer_text;
+    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);
@@ -70,6 +74,12 @@ input_manager_init(struct input_manager *im,
         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
@@ -80,6 +90,7 @@ 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;
@@ -143,13 +154,25 @@ action_cut(struct controller *controller, int actions) {
 }
 
 // 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)) {
-        LOGW("Could not request 'press back or turn screen on'");
+    if (actions & ACTION_DOWN) {
+        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'");
+        }
     }
 }
 
@@ -164,9 +187,19 @@ 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'");
@@ -186,13 +219,20 @@ set_device_clipboard(struct controller *controller, bool paste) {
         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'");
     }
 }
@@ -238,11 +278,18 @@ 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'");
     }
 }
@@ -269,7 +316,7 @@ rotate_client_right(struct screen *screen) {
     screen_set_rotation(screen, new_rotation);
 }
 
-void
+static void
 input_manager_process_text_input(struct input_manager *im,
                                  const SDL_TextInputEvent *event) {
     if (is_shortcut_mod(im, SDL_GetModState())) {
@@ -287,17 +334,47 @@ input_manager_process_text_input(struct input_manager *im,
 
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
-    msg.inject_text.text = SDL_strdup(event->text);
+    msg.inject_text.text = strdup(event->text);
     if (!msg.inject_text.text) {
         LOGW("Could not strdup input text");
         return;
     }
     if (!controller_push_msg(im->controller, &msg)) {
-        SDL_free(msg.inject_text.text);
+        free(msg.inject_text.text);
         LOGW("Could not request 'inject text'");
     }
 }
 
+static bool
+simulate_virtual_finger(struct input_manager *im,
+                        enum android_motionevent_action action,
+                        struct 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 point
+inverse_point(struct point point, struct size size) {
+    point.x = size.width - point.x;
+    point.y = size.height - point.y;
+    return point;
+}
+
 static bool
 convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to,
                   bool prefer_text, uint32_t repeat) {
@@ -319,22 +396,33 @@ convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to,
     return true;
 }
 
-void
+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
     bool control = im->control;
 
-    bool smod = is_shortcut_mod(im, event->keysym.mod);
-
     struct controller *controller = im->controller;
 
     SDL_Keycode keycode = event->keysym.sym;
+    uint16_t mod = event->keysym.mod;
     bool down = event->type == SDL_KEYDOWN;
     bool ctrl = event->keysym.mod & KMOD_CTRL;
     bool shift = event->keysym.mod & KMOD_SHIFT;
     bool repeat = event->repeat;
 
+    bool smod = is_shortcut_mod(im, mod);
+
+    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;
+        }
+    }
+
     // The shortcut modifier is pressed
     if (smod) {
         int action = down ? ACTION_DOWN : ACTION_UP;
@@ -407,7 +495,7 @@ input_manager_process_key(struct input_manager *im,
                 return;
             case SDLK_v:
                 if (control && !repeat && down) {
-                    if (shift) {
+                    if (shift || im->legacy_paste) {
                         // inject the text as input events
                         clipboard_paste(controller);
                     } else {
@@ -433,17 +521,17 @@ input_manager_process_key(struct input_manager *im,
                 return;
             case SDLK_i:
                 if (!shift && !repeat && down) {
-                    struct fps_counter *fps_counter =
-                        im->video_buffer->fps_counter;
-                    switch_fps_counter_state(fps_counter);
+                    switch_fps_counter_state(&im->screen->fps_counter);
                 }
                 return;
             case SDLK_n:
                 if (control && !repeat && down) {
                     if (shift) {
-                        collapse_notification_panel(controller);
-                    } else {
+                        collapse_panels(controller);
+                    } else if (im->key_repeat == 0) {
                         expand_notification_panel(controller);
+                    } else {
+                        expand_settings_panel(controller);
                     }
                 }
                 return;
@@ -471,6 +559,11 @@ input_manager_process_key(struct input_manager *im,
     }
 
     if (ctrl && !shift && keycode == SDLK_v && down && !repeat) {
+        if (im->legacy_paste) {
+            // inject the text as input events
+            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);
@@ -499,7 +592,7 @@ convert_mouse_motion(const SDL_MouseMotionEvent *from, struct screen *screen,
     return true;
 }
 
-void
+static void
 input_manager_process_mouse_motion(struct input_manager *im,
                                    const SDL_MouseMotionEvent *event) {
     if (!event->state) {
@@ -511,10 +604,18 @@ input_manager_process_mouse_motion(struct input_manager *im,
         return;
     }
     struct control_msg msg;
-    if (convert_mouse_motion(event, im->screen, &msg)) {
-        if (!controller_push_msg(im->controller, &msg)) {
-            LOGW("Could not request 'inject mouse motion event'");
-        }
+    if (!convert_mouse_motion(event, im->screen, &msg)) {
+        return;
+    }
+
+    if (!controller_push_msg(im->controller, &msg)) {
+        LOGW("Could not request 'inject mouse motion event'");
+    }
+
+    if (im->vfinger_down) {
+        struct point mouse = msg.inject_touch_event.position.point;
+        struct point vfinger = inverse_point(mouse, im->screen->frame_size);
+        simulate_virtual_finger(im, AMOTION_EVENT_ACTION_MOVE, vfinger);
     }
 }
 
@@ -545,7 +646,7 @@ convert_touch(const SDL_TouchFingerEvent *from, struct screen *screen,
     return true;
 }
 
-void
+static void
 input_manager_process_touch(struct input_manager *im,
                             const SDL_TouchFingerEvent *event) {
     struct control_msg msg;
@@ -577,7 +678,7 @@ convert_mouse_button(const SDL_MouseButtonEvent *from, struct screen *screen,
     return true;
 }
 
-void
+static void
 input_manager_process_mouse_button(struct input_manager *im,
                                    const SDL_MouseButtonEvent *event) {
     bool control = im->control;
@@ -586,13 +687,29 @@ input_manager_process_mouse_button(struct input_manager *im,
         // simulated from touch events, so it's a duplicate
         return;
     }
-    if (event->type == SDL_MOUSEBUTTONDOWN) {
+
+    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(im->controller);
+            press_back_or_turn_screen_on(im->controller, action);
             return;
         }
         if (control && event->button == SDL_BUTTON_MIDDLE) {
-            action_home(im->controller, ACTION_DOWN | ACTION_UP);
+            action_home(im->controller, action);
             return;
         }
 
@@ -605,7 +722,9 @@ input_manager_process_mouse_button(struct input_manager *im,
             bool outside = x < r->x || x >= r->x + r->w
                         || y < r->y || y >= r->y + r->h;
             if (outside) {
-                screen_resize_to_fit(im->screen);
+                if (down) {
+                    screen_resize_to_fit(im->screen);
+                }
                 return;
             }
         }
@@ -617,10 +736,36 @@ input_manager_process_mouse_button(struct input_manager *im,
     }
 
     struct control_msg msg;
-    if (convert_mouse_button(event, im->screen, &msg)) {
-        if (!controller_push_msg(im->controller, &msg)) {
-            LOGW("Could not request 'inject mouse button event'");
+    if (!convert_mouse_button(event, im->screen, &msg)) {
+        return;
+    }
+
+    if (!controller_push_msg(im->controller, &msg)) {
+        LOGW("Could not request 'inject mouse button event'");
+        return;
+    }
+
+    // Pinch-to-zoom simulation.
+    //
+    // If Ctrl is hold when the left-click button is pressed, then
+    // 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 point mouse = msg.inject_touch_event.position.point;
+        struct 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;
     }
 }
 
@@ -648,7 +793,7 @@ convert_mouse_wheel(const SDL_MouseWheelEvent *from, struct screen *screen,
     return true;
 }
 
-void
+static void
 input_manager_process_mouse_wheel(struct input_manager *im,
                                   const SDL_MouseWheelEvent *event) {
     struct control_msg msg;
@@ -658,3 +803,46 @@ input_manager_process_mouse_wheel(struct input_manager *im,
         }
     }
 }
+
+bool
+input_manager_handle_event(struct input_manager *im, SDL_Event *event) {
+    switch (event->type) {
+        case SDL_TEXTINPUT:
+            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

@@ -1,21 +1,19 @@
 #ifndef INPUTMANAGER_H
 #define INPUTMANAGER_H
 
+#include "common.h"
+
 #include <stdbool.h>
 
 #include <SDL2/SDL.h>
 
-#include "config.h"
-#include "common.h"
 #include "controller.h"
 #include "fps_counter.h"
 #include "scrcpy.h"
 #include "screen.h"
-#include "video_buffer.h"
 
 struct input_manager {
     struct controller *controller;
-    struct video_buffer *video_buffer;
     struct screen *screen;
 
     // SDL reports repeated events as a boolean, but Android expects the actual
@@ -25,39 +23,29 @@ struct input_manager {
     bool control;
     bool forward_key_repeat;
     bool prefer_text;
+    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_init(struct input_manager *im,
-                   const struct scrcpy_options *options);
+input_manager_init(struct input_manager *im, struct controller *controller,
+                   struct screen *screen, const struct scrcpy_options *options);
 
-void
-input_manager_process_text_input(struct input_manager *im,
-                                 const SDL_TextInputEvent *event);
-
-void
-input_manager_process_key(struct input_manager *im,
-                          const SDL_KeyboardEvent *event);
-
-void
-input_manager_process_mouse_motion(struct input_manager *im,
-                                   const SDL_MouseMotionEvent *event);
-
-void
-input_manager_process_touch(struct input_manager *im,
-                            const SDL_TouchFingerEvent *event);
-
-void
-input_manager_process_mouse_button(struct input_manager *im,
-                                   const SDL_MouseButtonEvent *event);
-
-void
-input_manager_process_mouse_wheel(struct input_manager *im,
-                                  const SDL_MouseWheelEvent *event);
+bool
+input_manager_handle_event(struct input_manager *im, SDL_Event *event);
 
 #endif

app/src/main.c

@@ -1,15 +1,18 @@
 #include "scrcpy.h"
 
+#include "common.h"
+
 #include <assert.h>
 #include <stdbool.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 "config.h"
 #include "cli.h"
-#include "compat.h"
 #include "util/log.h"
 
 static void
@@ -28,6 +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,
+                                                 LIBAVDEVICE_VERSION_MINOR,
+                                                 LIBAVDEVICE_VERSION_MICRO);
+#endif
 }
 
 static SDL_LogPriority
@@ -90,6 +98,12 @@ 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;
     }
@@ -98,11 +112,5 @@ main(int argc, char *argv[]) {
 
     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/opengl.h

@@ -1,11 +1,11 @@
 #ifndef SC_OPENGL_H
 #define SC_OPENGL_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <SDL2/SDL_opengl.h>
 
-#include "config.h"
-
 struct sc_opengl {
     const char *version;
     bool is_opengles;

app/src/receiver.c

@@ -3,14 +3,13 @@
 #include <assert.h>
 #include <SDL2/SDL_clipboard.h>
 
-#include "config.h"
 #include "device_msg.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 bool
 receiver_init(struct receiver *receiver, socket_t control_socket) {
-    if (!(receiver->mutex = SDL_CreateMutex())) {
+    bool ok = sc_mutex_init(&receiver->mutex);
+    if (!ok) {
         return false;
     }
     receiver->control_socket = control_socket;
@@ -19,7 +18,7 @@ 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
@@ -102,8 +101,9 @@ bool
 receiver_start(struct receiver *receiver) {
     LOGD("Starting receiver thread");
 
-    receiver->thread = SDL_CreateThread(run_receiver, "receiver", receiver);
-    if (!receiver->thread) {
+    bool ok = sc_thread_create(&receiver->thread, run_receiver, "receiver",
+                               receiver);
+    if (!ok) {
         LOGC("Could not start receiver thread");
         return false;
     }
@@ -113,5 +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

@@ -1,19 +1,19 @@
 #ifndef RECEIVER_H
 #define RECEIVER_H
 
-#include <stdbool.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
+#include "common.h"
+
+#include <stdbool.h>
 
-#include "config.h"
 #include "util/net.h"
+#include "util/thread.h"
 
 // receive events from the device
 // managed by the controller
 struct receiver {
     socket_t control_socket;
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
+    sc_thread thread;
+    sc_mutex mutex;
 };
 
 bool

app/src/recorder.c

@@ -3,10 +3,11 @@
 #include <assert.h>
 #include <libavutil/time.h>
 
-#include "config.h"
-#include "compat.h"
-#include "util/lock.h"
 #include "util/log.h"
+#include "util/str_util.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
 
@@ -22,24 +23,27 @@ find_muxer(const char *name) {
 #else
         oformat = av_oformat_next(oformat);
 #endif
-        // until null or with name "mp4"
-    } while (oformat && strcmp(oformat->name, name));
+        // until null or containing the requested 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;
     }
 
-    // av_packet_ref() does not initialize all fields in old FFmpeg versions
-    // See <https://github.com/Genymobile/scrcpy/issues/707>
-    av_init_packet(&rec->packet);
+    rec->packet = av_packet_alloc();
+    if (!rec->packet) {
+        free(rec);
+        return NULL;
+    }
 
-    if (av_packet_ref(&rec->packet, packet)) {
-        SDL_free(rec);
+    if (av_packet_ref(rec->packet, packet)) {
+        av_packet_free(&rec->packet);
+        free(rec);
         return NULL;
     }
     return rec;
@@ -47,8 +51,9 @@ record_packet_new(const AVPacket *packet) {
 
 static void
 record_packet_delete(struct record_packet *rec) {
-    av_packet_unref(&rec->packet);
-    SDL_free(rec);
+    av_packet_unref(rec->packet);
+    av_packet_free(&rec->packet);
+    free(rec);
 }
 
 static void
@@ -60,50 +65,6 @@ recorder_queue_clear(struct recorder_queue *queue) {
     }
 }
 
-bool
-recorder_init(struct recorder *recorder,
-              const char *filename,
-              enum sc_record_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;
-    }
-
-    queue_init(&recorder->queue);
-    recorder->stopped = false;
-    recorder->failed = false;
-    recorder->format = format;
-    recorder->declared_frame_size = declared_frame_size;
-    recorder->header_written = false;
-    recorder->previous = NULL;
-
-    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 sc_record_format format) {
     switch (format) {
@@ -113,88 +74,6 @@ recorder_get_format_name(enum sc_record_format format) {
     }
 }
 
-bool
-recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
-    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");
-        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;
-
-    av_dict_set(&recorder->ctx->metadata, "comment",
-                "Recorded by scrcpy " SCRCPY_VERSION, 0);
-
-    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) {
-    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;
-    }
-    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];
@@ -208,13 +87,8 @@ 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) {
@@ -231,7 +105,7 @@ 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) {
@@ -260,22 +134,22 @@ run_recorder(void *data) {
     struct recorder *recorder = data;
 
     for (;;) {
-        mutex_lock(recorder->mutex);
+        sc_mutex_lock(&recorder->mutex);
 
         while (!recorder->stopped && queue_is_empty(&recorder->queue)) {
-            cond_wait(recorder->queue_cond, recorder->mutex);
+            sc_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 && 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);
+                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
@@ -290,7 +164,7 @@ run_recorder(void *data) {
         struct record_packet *rec;
         queue_take(&recorder->queue, next, &rec);
 
-        mutex_unlock(recorder->mutex);
+        sc_mutex_unlock(&recorder->mutex);
 
         // recorder->previous is only written from this thread, no need to lock
         struct record_packet *previous = recorder->previous;
@@ -302,25 +176,45 @@ run_recorder(void *data) {
         }
 
         // config packets have no PTS, we must ignore them
-        if (rec->packet.pts != AV_NOPTS_VALUE
-            && previous->packet.pts != AV_NOPTS_VALUE) {
+        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;
+            previous->packet->duration =
+                rec->packet->pts - previous->packet->pts;
         }
 
-        bool ok = recorder_write(recorder, &previous->packet);
+        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");
@@ -328,51 +222,176 @@ run_recorder(void *data) {
     return 0;
 }
 
-bool
-recorder_start(struct recorder *recorder) {
-    LOGD("Starting recorder thread");
-
-    recorder->thread = SDL_CreateThread(run_recorder, "recorder", recorder);
-    if (!recorder->thread) {
-        LOGC("Could not start recorder thread");
+static bool
+recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
+    bool ok = sc_mutex_init(&recorder->mutex);
+    if (!ok) {
+        LOGC("Could not create mutex");
         return false;
     }
 
+    ok = sc_cond_init(&recorder->queue_cond);
+    if (!ok) {
+        LOGC("Could not create cond");
+        goto error_mutex_destroy;
+    }
+
+    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;
 }
 
-void
-recorder_stop(struct recorder *recorder) {
-    mutex_lock(recorder->mutex);
+static void
+recorder_close(struct recorder *recorder) {
+    sc_mutex_lock(&recorder->mutex);
     recorder->stopped = true;
-    cond_signal(recorder->queue_cond);
-    mutex_unlock(recorder->mutex);
+    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);
 }
 
-void
-recorder_join(struct recorder *recorder) {
-    SDL_WaitThread(recorder->thread, NULL);
-}
-
-bool
+static bool
 recorder_push(struct recorder *recorder, const AVPacket *packet) {
-    mutex_lock(recorder->mutex);
+    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;
     }
 
     queue_push(&recorder->queue, next, rec);
-    cond_signal(recorder->queue_cond);
+    sc_cond_signal(&recorder->queue_cond);
 
-    mutex_unlock(recorder->mutex);
+    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 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_destroy(struct recorder *recorder) {
+    free(recorder->filename);
+}

app/src/recorder.h

@@ -1,34 +1,37 @@
 #ifndef RECORDER_H
 #define RECORDER_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <libavformat/avformat.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
 
-#include "config.h"
-#include "common.h"
+#include "coords.h"
 #include "scrcpy.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 QUEUE(struct record_packet);
 
 struct recorder {
+    struct sc_packet_sink packet_sink; // packet sink trait
+
     char *filename;
     enum sc_record_format format;
     AVFormatContext *ctx;
     struct size declared_frame_size;
     bool header_written;
 
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
-    SDL_cond *queue_cond;
-    bool stopped; // set on recorder_stop() by the stream reader
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond queue_cond;
+    bool stopped; // set on recorder_close()
     bool failed; // set on packet write failure
     struct recorder_queue queue;
 
@@ -46,22 +49,4 @@ recorder_init(struct recorder *recorder, const char *filename,
 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

@@ -13,49 +13,34 @@
 # include <windows.h>
 #endif
 
-#include "config.h"
-#include "command.h"
-#include "common.h"
-#include "compat.h"
 #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 "recorder.h"
 #include "screen.h"
 #include "server.h"
 #include "stream.h"
 #include "tiny_xpm.h"
-#include "video_buffer.h"
-#include "util/lock.h"
 #include "util/log.h"
 #include "util/net.h"
+#ifdef HAVE_V4L2
+# include "v4l2_sink.h"
+#endif
 
-static struct server server = SERVER_INITIALIZER;
-static struct screen screen = SCREEN_INITIALIZER;
-static struct fps_counter fps_counter;
-static struct video_buffer video_buffer;
-static struct stream stream;
-static struct decoder decoder;
-static struct recorder recorder;
-static struct controller controller;
-static struct file_handler file_handler;
-
-static struct input_manager input_manager = {
-    .controller = &controller,
-    .video_buffer = &video_buffer,
-    .screen = &screen,
-    .repeat = 0,
-
-    // initialized later
-    .prefer_text = false,
-    .sdl_shortcut_mods = {
-        .data = {0},
-        .count = 0,
-    },
+struct scrcpy {
+    struct server server;
+    struct screen screen;
+    struct stream stream;
+    struct decoder decoder;
+    struct recorder recorder;
+#ifdef HAVE_V4L2
+    struct sc_v4l2_sink v4l2_sink;
+#endif
+    struct controller controller;
+    struct file_handler file_handler;
+    struct input_manager input_manager;
 };
 
 #ifdef _WIN32
@@ -133,30 +118,6 @@ sdl_init_and_configure(bool display, const char *render_driver,
     return true;
 }
 
-
-#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) {
-    (void) 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
 is_apk(const char *file) {
     const char *ext = strrchr(file, '.');
@@ -170,7 +131,8 @@ enum event_result {
 };
 
 static enum event_result
-handle_event(SDL_Event *event, const struct scrcpy_options *options) {
+handle_event(struct scrcpy *s, const struct scrcpy_options *options,
+             SDL_Event *event) {
     switch (event->type) {
         case EVENT_STREAM_STOPPED:
             LOGD("Video stream stopped");
@@ -178,81 +140,45 @@ handle_event(SDL_Event *event, const struct scrcpy_options *options) {
         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:
-            screen_handle_window_event(&screen, &event->window);
-            break;
-        case SDL_TEXTINPUT:
-            if (!options->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);
-            break;
-        case SDL_MOUSEMOTION:
-            if (!options->control) {
-                break;
-            }
-            input_manager_process_mouse_motion(&input_manager, &event->motion);
-            break;
-        case SDL_MOUSEWHEEL:
-            if (!options->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);
-            break;
-        case SDL_FINGERMOTION:
-        case SDL_FINGERDOWN:
-        case SDL_FINGERUP:
-            input_manager_process_touch(&input_manager, &event->tfinger);
-            break;
         case SDL_DROPFILE: {
             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);
-            break;
+            file_handler_request(&s->file_handler, action, file);
+            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(const struct scrcpy_options *options) {
-#ifdef CONTINUOUS_RESIZING_WORKAROUND
-    if (options->display) {
-        SDL_AddEventWatch(event_watcher, NULL);
-    }
-#endif
+event_loop(struct scrcpy *s, const struct scrcpy_options *options) {
     SDL_Event event;
     while (SDL_WaitEvent(&event)) {
-        enum event_result result = handle_event(&event, options);
+        enum event_result result = handle_event(s, options, &event);
         switch (result) {
             case EVENT_RESULT_STOPPED_BY_USER:
                 return true;
@@ -290,7 +216,7 @@ av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
     if (priority == 0) {
         return;
     }
-    char *local_fmt = SDL_malloc(strlen(fmt) + 10);
+    char *local_fmt = malloc(strlen(fmt) + 10);
     if (!local_fmt) {
         LOGC("Could not allocate string");
         return;
@@ -299,13 +225,44 @@ av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
     strcpy(local_fmt, "[FFmpeg] ");
     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;
+
+    SDL_Event stop_event;
+    stop_event.type = EVENT_STREAM_STOPPED;
+    SDL_PushEvent(&stop_event);
 }
 
 bool
 scrcpy(const struct scrcpy_options *options) {
+    static struct scrcpy scrcpy;
+    struct scrcpy *s = &scrcpy;
+
+    if (!server_init(&s->server)) {
+        return false;
+    }
+
+    bool ret = false;
+
+    bool server_started = false;
+    bool file_handler_initialized = false;
+    bool recorder_initialized = false;
+#ifdef HAVE_V4L2
+    bool v4l2_sink_initialized = false;
+#endif
+    bool stream_started = false;
+    bool controller_initialized = false;
+    bool controller_started = false;
+    bool screen_initialized = false;
+
     bool record = !!options->record_filename;
     struct server_params params = {
+        .serial = options->serial,
         .log_level = options->log_level,
         .crop = options->crop,
         .port_range = options->port_range,
@@ -318,97 +275,81 @@ scrcpy(const struct scrcpy_options *options) {
         .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(&server, options->serial, &params)) {
-        return false;
+    if (!server_start(&s->server, &params)) {
+        goto end;
     }
 
-    bool ret = false;
-
-    bool fps_counter_initialized = false;
-    bool video_buffer_initialized = false;
-    bool file_handler_initialized = false;
-    bool recorder_initialized = false;
-    bool stream_started = false;
-    bool controller_initialized = false;
-    bool controller_started = false;
+    server_started = true;
 
     if (!sdl_init_and_configure(options->display, options->render_driver,
                                 options->disable_screensaver)) {
         goto end;
     }
 
-    if (!server_connect_to(&server)) {
-        goto end;
-    }
-
     char device_name[DEVICE_NAME_FIELD_LENGTH];
     struct size frame_size;
 
-    // screenrecord does not send frames when the screen content does not
-    // change therefore, we transmit the screen size before the video stream,
-    // to be able to init the window immediately
-    if (!device_read_info(server.video_socket, device_name, &frame_size)) {
+    if (!server_connect_to(&s->server, 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) {
-        if (!fps_counter_init(&fps_counter)) {
-            goto end;
-        }
-        fps_counter_initialized = true;
-
-        if (!video_buffer_init(&video_buffer, &fps_counter,
-                               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;
+    bool needs_decoder = options->display;
+#ifdef HAVE_V4L2
+    needs_decoder |= !!options->v4l2_device;
+#endif
+    if (needs_decoder) {
+        decoder_init(&s->decoder);
+        dec = &s->decoder;
     }
 
     struct recorder *rec = NULL;
     if (record) {
-        if (!recorder_init(&recorder,
+        if (!recorder_init(&s->recorder,
                            options->record_filename,
                            options->record_format,
                            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);
+    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
-    // start the stream
-    if (!stream_start(&stream)) {
-        goto end;
+    if (dec) {
+        stream_add_sink(&s->stream, &dec->packet_sink);
+    }
+
+    if (rec) {
+        stream_add_sink(&s->stream, &rec->packet_sink);
     }
-    stream_started = true;
 
     if (options->display) {
         if (options->control) {
-            if (!controller_init(&controller, server.control_socket)) {
+            if (!controller_init(&s->controller, s->server.control_socket)) {
                 goto end;
             }
             controller_initialized = true;
 
-            if (!controller_start(&controller)) {
+            if (!controller_start(&s->controller)) {
                 goto end;
             }
             controller_started = true;
@@ -417,87 +358,120 @@ scrcpy(const struct scrcpy_options *options) {
         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, options->window_x,
-                                   options->window_y, options->window_width,
-                                   options->window_height,
-                                   options->window_borderless,
-                                   options->rotation, options-> mipmaps)) {
+        struct screen_params screen_params = {
+            .window_title = window_title,
+            .frame_size = 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,
+        };
+
+        if (!screen_init(&s->screen, &screen_params)) {
             goto end;
         }
+        screen_initialized = true;
+
+        decoder_add_sink(&s->decoder, &s->screen.frame_sink);
 
         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) {
-            screen_switch_fullscreen(&screen);
-        }
     }
 
-    input_manager_init(&input_manager, options);
+#ifdef HAVE_V4L2
+    if (options->v4l2_device) {
+        if (!sc_v4l2_sink_init(&s->v4l2_sink, options->v4l2_device, frame_size)) {
+            goto end;
+        }
 
-    ret = event_loop(options);
+        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;
+
+    input_manager_init(&s->input_manager, &s->controller, &s->screen, 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
-    // is shutdown
-    if (stream_started) {
-        stream_stop(&stream);
-    }
+    // The stream is not stopped explicitly, because it will stop by itself on
+    // end-of-stream
     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) {
-        fps_counter_interrupt(&fps_counter);
+    if (screen_initialized) {
+        screen_interrupt(&s->screen);
     }
 
-    // shutdown the sockets and kill the server
-    server_stop(&server);
+    if (server_started) {
+        // 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
+
+    // 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_destroy(&file_handler);
+        file_handler_join(&s->file_handler);
+        file_handler_destroy(&s->file_handler);
     }
 
-    if (video_buffer_initialized) {
-        video_buffer_destroy(&video_buffer);
-    }
-
-    if (fps_counter_initialized) {
-        fps_counter_join(&fps_counter);
-        fps_counter_destroy(&fps_counter);
-    }
-
-    server_destroy(&server);
+    server_destroy(&s->server);
 
     return ret;
 }

app/src/scrcpy.h

@@ -1,12 +1,12 @@
 #ifndef SCRCPY_H
 #define SCRCPY_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 
-#include "config.h"
-
 enum sc_log_level {
     SC_LOG_LEVEL_DEBUG,
     SC_LOG_LEVEL_INFO,
@@ -20,6 +20,16 @@ enum sc_record_format {
     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,
+};
+
 #define SC_MAX_SHORTCUT_MODS 8
 
 enum sc_shortcut_mod {
@@ -51,6 +61,8 @@ struct scrcpy_options {
     const char *push_target;
     const char *render_driver;
     const char *codec_options;
+    const char *encoder_name;
+    const char *v4l2_device;
     enum sc_log_level log_level;
     enum sc_record_format record_format;
     struct sc_port_range port_range;
@@ -58,20 +70,19 @@ struct scrcpy_options {
     uint16_t max_size;
     uint32_t bit_rate;
     uint16_t max_fps;
-    int8_t lock_video_orientation;
+    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;
-    uint16_t display_id;
+    uint32_t display_id;
     bool show_touches;
     bool fullscreen;
     bool always_on_top;
     bool control;
     bool display;
     bool turn_screen_off;
-    bool render_expired_frames;
     bool prefer_text;
     bool window_borderless;
     bool mipmaps;
@@ -79,6 +90,9 @@ struct scrcpy_options {
     bool force_adb_forward;
     bool disable_screensaver;
     bool forward_key_repeat;
+    bool forward_all_clicks;
+    bool legacy_paste;
+    bool power_off_on_close;
 };
 
 #define SCRCPY_OPTIONS_DEFAULT { \
@@ -89,6 +103,8 @@ struct scrcpy_options {
     .push_target = NULL, \
     .render_driver = NULL, \
     .codec_options = NULL, \
+    .encoder_name = NULL, \
+    .v4l2_device = NULL, \
     .log_level = SC_LOG_LEVEL_INFO, \
     .record_format = SC_RECORD_FORMAT_AUTO, \
     .port_range = { \
@@ -99,10 +115,10 @@ struct scrcpy_options {
         .data = {SC_MOD_LALT, SC_MOD_LSUPER}, \
         .count = 2, \
     }, \
-    .max_size = DEFAULT_MAX_SIZE, \
+    .max_size = 0, \
     .bit_rate = DEFAULT_BIT_RATE, \
     .max_fps = 0, \
-    .lock_video_orientation = DEFAULT_LOCK_VIDEO_ORIENTATION, \
+    .lock_video_orientation = SC_LOCK_VIDEO_ORIENTATION_UNLOCKED, \
     .rotation = 0, \
     .window_x = SC_WINDOW_POSITION_UNDEFINED, \
     .window_y = SC_WINDOW_POSITION_UNDEFINED, \
@@ -115,7 +131,6 @@ struct scrcpy_options {
     .control = true, \
     .display = true, \
     .turn_screen_off = false, \
-    .render_expired_frames = false, \
     .prefer_text = false, \
     .window_borderless = false, \
     .mipmaps = true, \
@@ -123,6 +138,9 @@ struct scrcpy_options {
     .force_adb_forward = false, \
     .disable_screensaver = false, \
     .forward_key_repeat = true, \
+    .forward_all_clicks = false, \
+    .legacy_paste = false, \
+    .power_off_on_close = false, \
 }
 
 bool

app/src/screen.c

@@ -4,18 +4,17 @@
 #include <string.h>
 #include <SDL2/SDL.h>
 
-#include "config.h"
-#include "common.h"
-#include "compat.h"
+#include "events.h"
 #include "icon.xpm"
 #include "scrcpy.h"
 #include "tiny_xpm.h"
 #include "video_buffer.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 #define DISPLAY_MARGINS 96
 
+#define DOWNCAST(SINK) container_of(SINK, struct screen, frame_sink)
+
 static inline struct size
 get_rotated_size(struct size size, int rotation) {
     struct size rotated_size;
@@ -42,6 +41,18 @@ get_window_size(const struct screen *screen) {
     return size;
 }
 
+static struct point
+get_window_position(const struct screen *screen) {
+    int x;
+    int y;
+    SDL_GetWindowPosition(screen->window, &x, &y);
+
+    struct 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) {
@@ -123,13 +134,6 @@ get_optimal_size(struct size current_size, struct size content_size) {
     return window_size;
 }
 
-// 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 content_size) {
-    struct size window_size = get_window_size(screen);
-    return get_optimal_size(window_size, content_size);
-}
-
 // initially, there is no current size, so use the frame size as current size
 // req_width and req_height, if not 0, are the sizes requested by the user
 static inline struct size
@@ -194,11 +198,6 @@ screen_update_content_rect(struct screen *screen) {
     }
 }
 
-void
-screen_init(struct screen *screen) {
-    *screen = (struct screen) SCREEN_INITIALIZER;
-}
-
 static inline SDL_Texture *
 create_texture(struct screen *screen) {
     SDL_Renderer *renderer = screen->renderer;
@@ -226,27 +225,112 @@ create_texture(struct screen *screen) {
     return texture;
 }
 
-bool
-screen_init_rendering(struct screen *screen, const char *window_title,
-                      struct size frame_size, bool always_on_top,
-                      int16_t window_x, int16_t window_y, uint16_t window_width,
-                      uint16_t window_height, bool window_borderless,
-                      uint8_t rotation, bool mipmaps) {
-    screen->frame_size = frame_size;
-    screen->rotation = rotation;
-    if (rotation) {
-        LOGI("Initial display rotation set to %u", rotation);
+#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);
     }
-    struct size content_size = get_rotated_size(frame_size, screen->rotation);
+    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);
+
+    bool previous_frame_skipped;
+    bool ok = video_buffer_push(&screen->vb, frame, &previous_frame_skipped);
+    if (!ok) {
+        return false;
+    }
+
+    if (previous_frame_skipped) {
+        fps_counter_add_skipped_frame(&screen->fps_counter);
+        // The EVENT_NEW_FRAME triggered for the previous frame will consume
+        // this new frame instead
+    } else {
+        static SDL_Event new_frame_event = {
+            .type = EVENT_NEW_FRAME,
+        };
+
+        // Post the event on the UI thread
+        SDL_PushEvent(&new_frame_event);
+    }
+
+    return true;
+}
+
+bool
+screen_init(struct screen *screen, const struct screen_params *params) {
+    screen->resize_pending = false;
+    screen->has_frame = false;
+    screen->fullscreen = false;
+    screen->maximized = false;
+
+    bool ok = video_buffer_init(&screen->vb);
+    if (!ok) {
+        LOGE("Could not initialize video buffer");
+        return false;
+    }
+
+    if (!fps_counter_init(&screen->fps_counter)) {
+        LOGE("Could not initialize FPS counter");
+        goto error_destroy_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 size content_size =
+        get_rotated_size(screen->frame_size, screen->rotation);
     screen->content_size = content_size;
 
-    struct size window_size =
-        get_initial_optimal_size(content_size, window_width, window_height);
-    uint32_t window_flags = SDL_WINDOW_HIDDEN | SDL_WINDOW_RESIZABLE;
-#ifdef HIDPI_SUPPORT
-    window_flags |= SDL_WINDOW_ALLOW_HIGHDPI;
-#endif
-    if (always_on_top) {
+    struct 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
@@ -254,28 +338,27 @@ screen_init_rendering(struct screen *screen, const char *window_title,
              "(compile with SDL >= 2.0.5 to enable it)");
 #endif
     }
-    if (window_borderless) {
+    if (params->window_borderless) {
         window_flags |= SDL_WINDOW_BORDERLESS;
     }
 
-    int x = window_x != SC_WINDOW_POSITION_UNDEFINED
-          ? window_x : (int) SDL_WINDOWPOS_UNDEFINED;
-    int y = window_y != SC_WINDOW_POSITION_UNDEFINED
-          ? window_y : (int) SDL_WINDOWPOS_UNDEFINED;
-    screen->window = SDL_CreateWindow(window_title, x, y,
+    int x = params->window_x != SC_WINDOW_POSITION_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);
-        return false;
+        goto error_destroy_window;
     }
 
     SDL_RendererInfo renderer_info;
@@ -283,15 +366,17 @@ screen_init_rendering(struct screen *screen, const char *window_title,
     const char *renderer_name = r ? NULL : renderer_info.name;
     LOGI("Renderer: %s", renderer_name ? renderer_name : "(unknown)");
 
+    screen->mipmaps = false;
+
     // starts with "opengl"
-    screen->use_opengl = renderer_name && !strncmp(renderer_name, "opengl", 6);
-    if (screen->use_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 (mipmaps) {
+        if (params->mipmaps) {
             bool supports_mipmaps =
                 sc_opengl_version_at_least(gl, 3, 0, /* OpenGL 3.0+ */
                                                2, 0  /* OpenGL ES 2.0+ */);
@@ -305,7 +390,7 @@ screen_init_rendering(struct screen *screen, const char *window_title,
         } else {
             LOGI("Trilinear filtering disabled");
         }
-    } else {
+    } else if (params->mipmaps) {
         LOGD("Trilinear filtering disabled (not an OpenGL renderer)");
     }
 
@@ -317,13 +402,18 @@ screen_init_rendering(struct screen *screen, const char *window_title,
         LOGW("Could not load icon");
     }
 
-    LOGI("Initial texture: %" PRIu16 "x%" PRIu16, frame_size.width,
-                                                  frame_size.height);
+    LOGI("Initial texture: %" PRIu16 "x%" PRIu16, params->frame_size.width,
+                                                  params->frame_size.height);
     screen->texture = create_texture(screen);
     if (!screen->texture) {
         LOGC("Could not create texture: %s", SDL_GetError());
-        screen_destroy(screen);
-        return false;
+        goto error_destroy_renderer;
+    }
+
+    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
@@ -333,25 +423,73 @@ screen_init_rendering(struct screen *screen, const char *window_title,
 
     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_destroy_video_buffer:
+    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) {
+    fps_counter_interrupt(&screen->fps_counter);
+}
+
+void
+screen_join(struct screen *screen) {
+    fps_counter_join(&screen->fps_counter);
+}
+
 void
 screen_destroy(struct screen *screen) {
-    if (screen->texture) {
-        SDL_DestroyTexture(screen->texture);
-    }
-    if (screen->renderer) {
-        SDL_DestroyRenderer(screen->renderer);
-    }
-    if (screen->window) {
-        SDL_DestroyWindow(screen->window);
-    }
+#ifndef NDEBUG
+    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);
+    video_buffer_destroy(&screen->vb);
 }
 
 static void
@@ -448,24 +586,25 @@ update_texture(struct screen *screen, const AVFrame *frame) {
             frame->data[2], frame->linesize[2]);
 
     if (screen->mipmaps) {
-        assert(screen->use_opengl);
         SDL_GL_BindTexture(screen->texture, NULL, NULL);
         screen->gl.GenerateMipmap(GL_TEXTURE_2D);
         SDL_GL_UnbindTexture(screen->texture);
     }
 }
 
-bool
-screen_update_frame(struct screen *screen, struct video_buffer *vb) {
-    mutex_lock(vb->mutex);
-    const AVFrame *frame = video_buffer_consume_rendered_frame(vb);
+static bool
+screen_update_frame(struct screen *screen) {
+    av_frame_unref(screen->frame);
+    video_buffer_consume(&screen->vb, screen->frame);
+    AVFrame *frame = screen->frame;
+
+    fps_counter_add_rendered_frame(&screen->fps_counter);
+
     struct 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, false);
     return true;
@@ -528,9 +667,20 @@ screen_resize_to_fit(struct screen *screen) {
         return;
     }
 
+    struct point point = get_window_position(screen);
+    struct size window_size = get_window_size(screen);
+
     struct size optimal_size =
-        get_optimal_window_size(screen, screen->content_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);
 }
@@ -552,31 +702,53 @@ screen_resize_to_pixel_perfect(struct screen *screen) {
                                             content_size.height);
 }
 
-void
-screen_handle_window_event(struct screen *screen,
-                           const SDL_WindowEvent *event) {
-    switch (event->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;
+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);
             }
-            screen->maximized = false;
-            apply_pending_resize(screen);
-            break;
+            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 point

app/src/screen.h

@@ -1,21 +1,30 @@
 #ifndef SCREEN_H
 #define SCREEN_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <SDL2/SDL.h>
 #include <libavformat/avformat.h>
 
-#include "config.h"
-#include "common.h"
+#include "coords.h"
 #include "opengl.h"
-
-struct video_buffer;
+#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 video_buffer vb;
+    struct fps_counter fps_counter;
+
     SDL_Window *window;
     SDL_Renderer *renderer;
     SDL_Texture *texture;
-    bool use_opengl;
     struct sc_opengl gl;
     struct size frame_size;
     struct size content_size; // rotated frame_size
@@ -32,67 +41,52 @@ struct screen {
     bool has_frame;
     bool fullscreen;
     bool maximized;
-    bool no_window;
     bool mipmaps;
+
+    AVFrame *frame;
 };
 
-#define SCREEN_INITIALIZER { \
-    .window = NULL, \
-    .renderer = NULL, \
-    .texture = NULL, \
-    .use_opengl = false, \
-    .gl = {0}, \
-    .frame_size = { \
-        .width = 0, \
-        .height = 0, \
-    }, \
-    .content_size = { \
-        .width = 0, \
-        .height = 0, \
-    }, \
-    .resize_pending = false, \
-    .windowed_content_size = { \
-        .width = 0, \
-        .height = 0, \
-    }, \
-    .rotation = 0, \
-    .rect = { \
-        .x = 0, \
-        .y = 0, \
-        .w = 0, \
-        .h = 0, \
-    }, \
-    .has_frame = false, \
-    .fullscreen = false, \
-    .maximized = false, \
-    .no_window = false, \
-    .mipmaps = false, \
-}
+struct screen_params {
+    const char *window_title;
+    struct size frame_size;
+    bool always_on_top;
 
-// initialize default values
-void
-screen_init(struct screen *screen);
+    int16_t window_x;
+    int16_t window_y;
+    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;
+};
 
 // initialize screen, create window, renderer and texture (window is hidden)
-// window_x and window_y accept SC_WINDOW_POSITION_UNDEFINED
 bool
-screen_init_rendering(struct screen *screen, const char *window_title,
-                      struct size frame_size, bool always_on_top,
-                      int16_t window_x, int16_t window_y, uint16_t window_width,
-                      uint16_t window_height, bool window_borderless,
-                      uint8_t rotation, bool mipmaps);
+screen_init(struct screen *screen, const struct screen_params *params);
 
-// 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
-bool
-screen_update_frame(struct screen *screen, struct video_buffer *vb);
+// hide the window
+//
+// 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
 //
@@ -117,9 +111,9 @@ screen_resize_to_pixel_perfect(struct screen *screen);
 void
 screen_set_rotation(struct screen *screen, unsigned rotation);
 
-// react to window events
-void
-screen_handle_window_event(struct screen *screen, const SDL_WindowEvent *event);
+// 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

app/src/server.c

@@ -5,12 +5,10 @@
 #include <inttypes.h>
 #include <libgen.h>
 #include <stdio.h>
-#include <SDL2/SDL_thread.h>
 #include <SDL2/SDL_timer.h>
 #include <SDL2/SDL_platform.h>
 
-#include "config.h"
-#include "command.h"
+#include "adb.h"
 #include "util/log.h"
 #include "util/net.h"
 #include "util/str_util.h"
@@ -33,7 +31,7 @@ get_server_path(void) {
 #ifdef __WINDOWS__
         char *server_path = utf8_from_wide_char(server_path_env);
 #else
-        char *server_path = SDL_strdup(server_path_env);
+        char *server_path = strdup(server_path_env);
 #endif
         if (!server_path) {
             LOGE("Could not allocate memory");
@@ -45,7 +43,7 @@ get_server_path(void) {
 
 #ifndef PORTABLE
     LOGD("Using server: " DEFAULT_SERVER_PATH);
-    char *server_path = SDL_strdup(DEFAULT_SERVER_PATH);
+    char *server_path = strdup(DEFAULT_SERVER_PATH);
     if (!server_path) {
         LOGE("Could not allocate memory");
         return NULL;
@@ -60,19 +58,19 @@ get_server_path(void) {
         LOGE("Could not get executable path, "
              "using " SERVER_FILENAME " from current directory");
         // not found, use current directory
-        return SERVER_FILENAME;
+        return strdup(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);
+    char *server_path = malloc(len);
     if (!server_path) {
         LOGE("Could not alloc server path string, "
              "using " SERVER_FILENAME " from current directory");
-        SDL_free(executable_path);
-        return SERVER_FILENAME;
+        free(executable_path);
+        return strdup(SERVER_FILENAME);
     }
 
     memcpy(server_path, dir, dirlen);
@@ -80,7 +78,7 @@ get_server_path(void) {
     memcpy(&server_path[dirlen + 1], SERVER_FILENAME, sizeof(SERVER_FILENAME));
     // the final null byte has been copied with SERVER_FILENAME
 
-    SDL_free(executable_path);
+    free(executable_path);
 
     LOGD("Using server (portable): %s", server_path);
     return server_path;
@@ -95,36 +93,36 @@ push_server(const char *serial) {
     }
     if (!is_regular_file(server_path)) {
         LOGE("'%s' does not exist or is not a regular file\n", server_path);
-        SDL_free(server_path);
+        free(server_path);
         return false;
     }
     process_t process = adb_push(serial, server_path, DEVICE_SERVER_PATH);
-    SDL_free(server_path);
-    return process_check_success(process, "adb push");
+    free(server_path);
+    return process_check_success(process, "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);
-    return process_check_success(process, "adb reverse");
+    return process_check_success(process, "adb reverse", true);
 }
 
 static bool
 disable_tunnel_reverse(const char *serial) {
     process_t process = adb_reverse_remove(serial, SOCKET_NAME);
-    return process_check_success(process, "adb reverse --remove");
+    return process_check_success(process, "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);
-    return process_check_success(process, "adb forward");
+    return process_check_success(process, "adb forward", true);
 }
 
 static bool
 disable_tunnel_forward(const char *serial, uint16_t local_port) {
     process_t process = adb_forward_remove(serial, local_port);
-    return process_check_success(process, "adb forward --remove");
+    return process_check_success(process, "adb forward --remove", true);
 }
 
 static bool
@@ -201,7 +199,7 @@ enable_tunnel_forward_any_port(struct server *server,
 
         if (port < port_range.last) {
             LOGW("Could not forward port %" PRIu16", retrying on %" PRIu16,
-                 port, port + 1);
+                 port, (uint16_t) (port + 1));
             port++;
             continue;
         }
@@ -257,12 +255,12 @@ execute_server(struct server *server, const struct server_params *params) {
     char bit_rate_string[11];
     char max_fps_string[6];
     char lock_video_orientation_string[5];
-    char display_id_string[6];
+    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, "%"PRIu16, params->display_id);
+    sprintf(display_id_string, "%"PRIu32, params->display_id);
     const char *const cmd[] = {
         "shell",
         "CLASSPATH=" DEVICE_SERVER_PATH,
@@ -294,6 +292,8 @@ execute_server(struct server *server, const struct server_params *params) {
         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",
     };
 #ifdef SERVER_DEBUGGER
     LOGI("Server debugger waiting for a client on device port "
@@ -306,7 +306,7 @@ execute_server(struct server *server, const struct server_params *params) {
     //     Port: 5005
     // Then click on "Debug"
 #endif
-    return adb_execute(server->serial, cmd, sizeof(cmd) / sizeof(cmd[0]));
+    return adb_execute(server->serial, cmd, ARRAY_LEN(cmd));
 }
 
 static socket_t
@@ -352,15 +352,48 @@ close_socket(socket_t socket) {
     }
 }
 
-void
+bool
 server_init(struct server *server) {
-    *server = (struct server) SERVER_INITIALIZER;
+    server->serial = NULL;
+    server->process = PROCESS_NONE;
+    atomic_flag_clear_explicit(&server->server_socket_closed,
+                               memory_order_relaxed);
+
+    bool ok = sc_mutex_init(&server->mutex);
+    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 = INVALID_SOCKET;
+    server->video_socket = INVALID_SOCKET;
+    server->control_socket = 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;
-    cmd_simple_wait(server->process, NULL); // ignore exit code
+    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 != INVALID_SOCKET
@@ -374,30 +407,28 @@ run_wait_server(void *data) {
 }
 
 bool
-server_start(struct server *server, const char *serial,
-             const struct server_params *params) {
-    server->port_range = params->port_range;
-
-    if (serial) {
-        server->serial = SDL_strdup(serial);
+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)) {
-        goto error1;
+    if (!push_server(params->serial)) {
+        /* server->serial will be freed on server_destroy() */
+        return false;
     }
 
     if (!enable_tunnel_any_port(server, params->port_range,
                                 params->force_adb_forward)) {
-        goto error1;
+        return false;
     }
 
     // server will connect to our server socket
     server->process = execute_server(server, params);
     if (server->process == PROCESS_NONE) {
-        goto error2;
+        goto error;
     }
 
     // If the server process dies before connecting to the server socket, then
@@ -406,19 +437,19 @@ server_start(struct server *server, const char *serial,
     // things simple and multiplatform, just spawn a new thread waiting for the
     // server process and calling shutdown()/close() on the server socket if
     // necessary to wake up any accept() blocking call.
-    server->wait_server_thread =
-        SDL_CreateThread(run_wait_server, "wait-server", server);
-    if (!server->wait_server_thread) {
-        cmd_terminate(server->process);
-        cmd_simple_wait(server->process, NULL); // ignore exit code
-        goto error2;
+    bool ok = sc_thread_create(&server->wait_server_thread, run_wait_server,
+                               "wait-server", server);
+    if (!ok) {
+        process_terminate(server->process);
+        process_wait(server->process, true); // ignore exit code
+        goto error;
     }
 
     server->tunnel_enabled = true;
 
     return true;
 
-error2:
+error:
     if (!server->tunnel_forward) {
         bool was_closed =
             atomic_flag_test_and_set(&server->server_socket_closed);
@@ -428,13 +459,32 @@ error2:
         close_socket(server->server_socket);
     }
     disable_tunnel(server);
-error1:
-    SDL_free(server->serial);
+
     return false;
 }
 
+static 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;
+}
+
 bool
-server_connect_to(struct server *server) {
+server_connect_to(struct server *server, char *device_name, struct size *size) {
     if (!server->tunnel_forward) {
         server->video_socket = net_accept(server->server_socket);
         if (server->video_socket == INVALID_SOCKET) {
@@ -474,7 +524,8 @@ 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, device_name, size);
 }
 
 void
@@ -492,17 +543,39 @@ server_stop(struct server *server) {
 
     assert(server->process != PROCESS_NONE);
 
-    cmd_terminate(server->process);
-
     if (server->tunnel_enabled) {
         // ignore failure
         disable_tunnel(server);
     }
 
-    SDL_WaitThread(server->wait_server_thread, NULL);
+    // Give some delay for the server to terminate properly
+    sc_mutex_lock(&server->mutex);
+    bool signaled = false;
+    if (!server->process_terminated) {
+#define WATCHDOG_DELAY_MS 1000
+        signaled = sc_cond_timedwait(&server->process_terminated_cond,
+                                     &server->mutex,
+                                     WATCHDOG_DELAY_MS);
+    }
+    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...");
+        process_terminate(server->process);
+    }
+
+    sc_thread_join(&server->wait_server_thread, NULL);
+    process_close(server->process);
 }
 
 void
 server_destroy(struct server *server) {
-    SDL_free(server->serial);
+    free(server->serial);
+    sc_cond_destroy(&server->process_terminated_cond);
+    sc_mutex_destroy(&server->mutex);
 }

app/src/server.h

@@ -1,77 +1,69 @@
 #ifndef SERVER_H
 #define SERVER_H
 
+#include "common.h"
+
 #include <stdatomic.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL_thread.h>
 
-#include "config.h"
-#include "command.h"
-#include "common.h"
+#include "adb.h"
+#include "coords.h"
 #include "scrcpy.h"
 #include "util/log.h"
 #include "util/net.h"
+#include "util/thread.h"
 
 struct server {
     char *serial;
     process_t process;
-    SDL_Thread *wait_server_thread;
+    sc_thread wait_server_thread;
     atomic_flag server_socket_closed;
+
+    sc_mutex mutex;
+    sc_cond process_terminated_cond;
+    bool process_terminated;
+
     socket_t server_socket; // only used if !tunnel_forward
     socket_t video_socket;
     socket_t control_socket;
-    struct sc_port_range port_range;
     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, \
-    .wait_server_thread = NULL, \
-    .server_socket_closed = ATOMIC_FLAG_INIT, \
-    .server_socket = INVALID_SOCKET, \
-    .video_socket = INVALID_SOCKET, \
-    .control_socket = INVALID_SOCKET, \
-    .port_range = { \
-        .first = 0, \
-        .last = 0, \
-    }, \
-    .local_port = 0, \
-    .tunnel_enabled = false, \
-    .tunnel_forward = false, \
-}
-
 struct server_params {
+    const char *serial;
     enum sc_log_level log_level;
     const char *crop;
     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;
-    uint16_t display_id;
+    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,
-             const struct server_params *params);
+server_start(struct server *server, const struct server_params *params);
 
+#define DEVICE_NAME_FIELD_LENGTH 64
 // block until the communication with the server is established
+// device_name must point to a buffer of at least DEVICE_NAME_FIELD_LENGTH bytes
 bool
-server_connect_to(struct server *server);
+server_connect_to(struct server *server, char *device_name, struct size *size);
 
 // disconnect and kill the server process
 void

app/src/stream.c

@@ -3,13 +3,8 @@
 #include <assert.h>
 #include <libavformat/avformat.h>
 #include <libavutil/time.h>
-#include <SDL2/SDL_events.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
 #include <unistd.h>
 
-#include "config.h"
-#include "compat.h"
 #include "decoder.h"
 #include "events.h"
 #include "recorder.h"
@@ -62,33 +57,12 @@ stream_recv_packet(struct stream *stream, AVPacket *packet) {
     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) {
-    if (stream->recorder && !recorder_push(stream->recorder, packet)) {
-        LOGE("Could not send config packet to recorder");
-        return false;
-    }
-    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");
+push_packet_to_sinks(struct stream *stream, const AVPacket *packet) {
+    for (unsigned i = 0; i < stream->sink_count; ++i) {
+        struct sc_packet_sink *sink = stream->sinks[i];
+        if (!sink->ops->push(sink, packet)) {
+            LOGE("Could not send config packet to sink %d", i);
             return false;
         }
     }
@@ -115,9 +89,11 @@ stream_parse(struct stream *stream, AVPacket *packet) {
         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;
     }
 
@@ -128,39 +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) {
-            offset = stream->pending.size;
-            if (av_grow_packet(&stream->pending, packet->size)) {
+        if (stream->pending) {
+            offset = stream->pending->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)) {
-                LOGE("Could not create packet");
+            stream->pending = av_packet_alloc();
+            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.dts = packet->dts;
-            stream->pending.flags = packet->flags;
-            packet = &stream->pending;
+            stream->pending->pts = packet->pts;
+            stream->pending->dts = packet->dts;
+            stream->pending->flags = packet->flags;
+            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;
         }
@@ -168,10 +149,10 @@ 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_unref(&stream->pending);
+            av_packet_unref(stream->pending);
+            av_packet_free(&stream->pending);
         }
 
         if (!ok) {
@@ -181,6 +162,33 @@ 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;
@@ -197,43 +205,36 @@ run_stream(void *data) {
         goto end;
     }
 
-    if (stream->decoder && !decoder_open(stream->decoder, codec)) {
-        LOGE("Could not open decoder");
+    if (!stream_open_sinks(stream, codec)) {
+        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);
-        av_packet_unref(&packet);
+        ok = stream_push_packet(stream, packet);
+        av_packet_unref(packet);
         if (!ok) {
             // cannot process packet (error already logged)
             break;
@@ -242,61 +243,58 @@ run_stream(void *data) {
 
     LOGD("End of frames");
 
-    if (stream->has_pending) {
-        av_packet_unref(&stream->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:
-    if (stream->recorder) {
-        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_close_sinks:
+    stream_close_sinks(stream);
 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,
-            struct decoder *decoder, struct recorder *recorder) {
+            const struct stream_callbacks *cbs, void *cbs_userdata) {
     stream->socket = socket;
-    stream->decoder = decoder,
-    stream->recorder = recorder;
-    stream->has_pending = false;
+    stream->pending = NULL;
+    stream->sink_count = 0;
+
+    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);
-    if (!stream->thread) {
+    bool ok = sc_thread_create(&stream->thread, run_stream, "stream", stream);
+    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

@@ -1,41 +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 "config.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;
-    struct video_buffer *video_buffer;
-    SDL_Thread *thread;
-    struct decoder *decoder;
-    struct recorder *recorder;
+    sc_thread thread;
+
+    struct sc_packet_sink *sinks[STREAM_MAX_SINKS];
+    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,
-            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/process.c

@@ -1,13 +1,4 @@
-// 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 "config.h"
+#include "util/process.h"
 
 #include <errno.h>
 #include <fcntl.h>
@@ -17,14 +8,13 @@
 #include <string.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <sys/stat.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
 #include "util/log.h"
 
 bool
-cmd_search(const char *file) {
+search_executable(const char *file) {
     char *path = getenv("PATH");
     if (!path)
         return false;
@@ -60,7 +50,7 @@ cmd_search(const char *file) {
 }
 
 enum process_result
-cmd_execute(const char *const argv[], pid_t *pid) {
+process_execute(const char *const argv[], pid_t *pid) {
     int fd[2];
 
     if (pipe(fd) == -1) {
@@ -122,29 +112,37 @@ end:
 }
 
 bool
-cmd_terminate(pid_t pid) {
+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, SIGTERM) != -1;
+    return kill(pid, SIGKILL) != -1;
 }
 
-bool
-cmd_simple_wait(pid_t pid, int *exit_code) {
-    int status;
+exit_code_t
+process_wait(pid_t pid, bool close) {
     int code;
-    if (waitpid(pid, &status, 0) == -1 || !WIFEXITED(status)) {
+    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 = -1;
+        code = NO_EXIT_CODE;
     } else {
-        code = WEXITSTATUS(status);
+        code = info.si_status;
     }
-    if (exit_code) {
-        *exit_code = code;
-    }
-    return !code;
+    return code;
+}
+
+void
+process_close(pid_t pid) {
+    process_wait(pid, true); // ignore exit code
 }
 
 char *
@@ -158,7 +156,7 @@ get_executable_path(void) {
         return NULL;
     }
     buf[len] = '\0';
-    return SDL_strdup(buf);
+    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

app/src/sys/win/process.c

@@ -1,8 +1,8 @@
-#include "command.h"
+#include "util/process.h"
 
+#include <assert.h>
 #include <sys/stat.h>
 
-#include "config.h"
 #include "util/log.h"
 #include "util/str_util.h"
 
@@ -21,7 +21,7 @@ build_cmd(char *cmd, size_t len, const char *const argv[]) {
 }
 
 enum process_result
-cmd_execute(const char *const argv[], HANDLE *handle) {
+process_execute(const char *const argv[], HANDLE *handle) {
     STARTUPINFOW si;
     PROCESS_INFORMATION pi;
     memset(&si, 0, sizeof(si));
@@ -39,14 +39,9 @@ cmd_execute(const char *const argv[], HANDLE *handle) {
         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,
+    if (!CreateProcessW(NULL, wide, NULL, NULL, FALSE, 0, NULL, NULL, &si,
                         &pi)) {
-        SDL_free(wide);
+        free(wide);
         *handle = NULL;
         if (GetLastError() == ERROR_FILE_NOT_FOUND) {
             return PROCESS_ERROR_MISSING_BINARY;
@@ -54,28 +49,35 @@ cmd_execute(const char *const argv[], HANDLE *handle) {
         return PROCESS_ERROR_GENERIC;
     }
 
-    SDL_free(wide);
+    free(wide);
     *handle = pi.hProcess;
     return PROCESS_SUCCESS;
 }
 
 bool
-cmd_terminate(HANDLE handle) {
-    return TerminateProcess(handle, 1) && CloseHandle(handle);
+process_terminate(HANDLE handle) {
+    return TerminateProcess(handle, 1);
 }
 
-bool
-cmd_simple_wait(HANDLE handle, DWORD *exit_code) {
+exit_code_t
+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 = -1; // max value, it's unsigned
+        code = NO_EXIT_CODE; // max value, it's unsigned
     }
-    if (exit_code) {
-        *exit_code = code;
+    if (close) {
+        CloseHandle(handle);
     }
-    return !code;
+    return code;
+}
+
+void
+process_close(HANDLE handle) {
+    bool closed = CloseHandle(handle);
+    assert(closed);
+    (void) closed;
 }
 
 char *
@@ -103,7 +105,7 @@ is_regular_file(const char *path) {
 
     struct _stat path_stat;
     int r = _wstat(wide_path, &path_stat);
-    SDL_free(wide_path);
+    free(wide_path);
 
     if (r) {
         perror("stat");

app/src/tiny_xpm.c

@@ -6,7 +6,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "config.h"
 #include "util/log.h"
 
 struct index {

app/src/tiny_xpm.h

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

app/src/trait/frame_sink.h

@@ -0,0 +1,26 @@
+#ifndef SC_FRAME_SINK
+#define SC_FRAME_SINK
+
+#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/packet_sink.h

@@ -0,0 +1,27 @@
+#ifndef SC_PACKET_SINK
+#define SC_PACKET_SINK
+
+#include "common.h"
+
+#include <assert.h>
+#include <stdbool.h>
+
+typedef struct AVCodec AVCodec;
+typedef struct AVPacket AVPacket;
+
+/**
+ * Packet sink trait.
+ *
+ * Component able to receive AVPackets should implement this trait.
+ */
+struct sc_packet_sink {
+    const struct sc_packet_sink_ops *ops;
+};
+
+struct sc_packet_sink_ops {
+    bool (*open)(struct sc_packet_sink *sink, const AVCodec *codec);
+    void (*close)(struct sc_packet_sink *sink);
+    bool (*push)(struct sc_packet_sink *sink, const AVPacket *packet);
+};
+
+#endif

app/src/util/buffer_util.h

@@ -1,11 +1,11 @@
 #ifndef BUFFER_UTIL_H
 #define BUFFER_UTIL_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdint.h>
 
-#include "config.h"
-
 static inline void
 buffer_write16be(uint8_t *buf, uint16_t value) {
     buf[0] = value >> 8;
@@ -33,7 +33,7 @@ buffer_read16be(const uint8_t *buf) {
 
 static inline uint32_t
 buffer_read32be(const uint8_t *buf) {
-    return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
+    return ((uint32_t) buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
 }
 
 static inline uint64_t

app/src/util/cbuf.h

@@ -2,11 +2,11 @@
 #ifndef CBUF_H
 #define CBUF_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <unistd.h>
 
-#include "config.h"
-
 // To define a circular buffer type of 20 ints:
 //     struct cbuf_int CBUF(int, 20);
 //

app/src/util/lock.h

@@ -1,74 +0,0 @@
-#ifndef LOCK_H
-#define LOCK_H
-
-#include <stdint.h>
-#include <SDL2/SDL_mutex.h>
-
-#include "config.h"
-#include "log.h"
-
-static inline void
-mutex_lock(SDL_mutex *mutex) {
-    int r = SDL_LockMutex(mutex);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not lock mutex: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}
-
-static inline void
-mutex_unlock(SDL_mutex *mutex) {
-    int r = SDL_UnlockMutex(mutex);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not unlock mutex: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}
-
-static inline void
-cond_wait(SDL_cond *cond, SDL_mutex *mutex) {
-    int r = SDL_CondWait(cond, mutex);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not wait on condition: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}
-
-static inline int
-cond_wait_timeout(SDL_cond *cond, SDL_mutex *mutex, uint32_t ms) {
-    int r = SDL_CondWaitTimeout(cond, mutex, ms);
-#ifndef NDEBUG
-    if (r < 0) {
-        LOGC("Could not wait on condition with timeout: %s", SDL_GetError());
-        abort();
-    }
-#endif
-    return r;
-}
-
-static inline void
-cond_signal(SDL_cond *cond) {
-    int r = SDL_CondSignal(cond);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not signal a condition: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}
-
-#endif

app/src/util/net.c

@@ -3,7 +3,6 @@
 #include <stdio.h>
 #include <SDL2/SDL_platform.h>
 
-#include "config.h"
 #include "log.h"
 
 #ifdef __WINDOWS__

app/src/util/net.h

@@ -1,6 +1,8 @@
 #ifndef NET_H
 #define NET_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <SDL2/SDL_platform.h>
@@ -17,8 +19,6 @@
   typedef int socket_t;
 #endif
 
-#include "config.h"
-
 bool
 net_init(void);
 

app/src/util/process.c

@@ -0,0 +1,21 @@
+#include "process.h"
+
+#include "log.h"
+
+bool
+process_check_success(process_t proc, const char *name, bool close) {
+    if (proc == PROCESS_NONE) {
+        LOGE("Could not execute \"%s\"", name);
+        return false;
+    }
+    exit_code_t exit_code = process_wait(proc, close);
+    if (exit_code) {
+        if (exit_code != NO_EXIT_CODE) {
+            LOGE("\"%s\" returned with value %" PRIexitcode, name, exit_code);
+        } else {
+            LOGE("\"%s\" exited unexpectedly", name);
+        }
+        return false;
+    }
+    return true;
+}

app/src/util/process.h

@@ -1,8 +1,9 @@
-#ifndef COMMAND_H
-#define COMMAND_H
+#ifndef SC_PROCESS_H
+#define SC_PROCESS_H
+
+#include "common.h"
 
 #include <stdbool.h>
-#include <inttypes.h>
 
 #ifdef _WIN32
 
@@ -12,11 +13,7 @@
 # define PATH_SEPARATOR '\\'
 # define PRIexitcode "lu"
 // <https://stackoverflow.com/a/44383330/1987178>
-# ifdef _WIN64
-#   define PRIsizet PRIu64
-# else
-#   define PRIsizet PRIu32
-# endif
+# define PRIsizet "Iu"
 # define PROCESS_NONE NULL
 # define NO_EXIT_CODE -1u // max value as unsigned
   typedef HANDLE process_t;
@@ -35,58 +32,45 @@
 
 #endif
 
-#include "config.h"
-
 enum process_result {
     PROCESS_SUCCESS,
     PROCESS_ERROR_GENERIC,
     PROCESS_ERROR_MISSING_BINARY,
 };
 
-#ifndef __WINDOWS__
-bool
-cmd_search(const char *file);
-#endif
-
+// execute the command and write the result to the output parameter "process"
 enum process_result
-cmd_execute(const char *const argv[], process_t *process);
+process_execute(const char *const argv[], process_t *process);
 
+// kill the process
 bool
-cmd_terminate(process_t pid);
+process_terminate(process_t pid);
 
-bool
-cmd_simple_wait(process_t pid, exit_code_t *exit_code);
+// wait and close the process (like waitpid())
+// the "close" flag indicates if the process must be "closed" (reaped)
+// (passing false is equivalent to enable WNOWAIT in waitid())
+exit_code_t
+process_wait(process_t pid, bool close);
 
-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);
+// close the process
+//
+// Semantically, process_wait(close) = process_wait(noclose) + process_close
+void
+process_close(process_t pid);
 
 // 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);
+process_check_success(process_t proc, const char *name, bool close);
+
+#ifndef _WIN32
+// only used to find package manager, not implemented for Windows
+bool
+search_executable(const char *file);
+#endif
 
 // return the absolute path of the executable (the scrcpy binary)
-// may be NULL on error; to be freed by SDL_free
+// may be NULL on error; to be freed by free()
 char *
 get_executable_path(void);
 

app/src/util/queue.h

@@ -2,12 +2,12 @@
 #ifndef QUEUE_H
 #define QUEUE_H
 
+#include "common.h"
+
 #include <assert.h>
 #include <stdbool.h>
 #include <stddef.h>
 
-#include "config.h"
-
 // To define a queue type of "struct foo":
 //    struct queue_foo QUEUE(struct foo);
 #define QUEUE(TYPE) { \

app/src/util/str_util.c

@@ -10,10 +10,6 @@
 # include <tchar.h>
 #endif
 
-#include <SDL2/SDL_stdinc.h>
-
-#include "config.h"
-
 size_t
 xstrncpy(char *dest, const char *src, size_t n) {
     size_t i;
@@ -51,7 +47,7 @@ truncated:
 char *
 strquote(const char *src) {
     size_t len = strlen(src);
-    char *quoted = SDL_malloc(len + 3);
+    char *quoted = malloc(len + 3);
     if (!quoted) {
         return NULL;
     }
@@ -144,6 +140,24 @@ parse_integer_with_suffix(const char *s, long *out) {
     return true;
 }
 
+bool
+strlist_contains(const char *list, char sep, const char *s) {
+    char *p;
+    do {
+        p = strchr(list, sep);
+
+        size_t token_len = p ? (size_t) (p - list) : strlen(list);
+        if (!strncmp(list, s, token_len)) {
+            return true;
+        }
+
+        if (p) {
+            list = p + 1;
+        }
+    } while (p);
+    return false;
+}
+
 size_t
 utf8_truncation_index(const char *utf8, size_t max_len) {
     size_t len = strlen(utf8);
@@ -169,7 +183,7 @@ utf8_to_wide_char(const char *utf8) {
         return NULL;
     }
 
-    wchar_t *wide = SDL_malloc(len * sizeof(wchar_t));
+    wchar_t *wide = malloc(len * sizeof(wchar_t));
     if (!wide) {
         return NULL;
     }
@@ -185,7 +199,7 @@ utf8_from_wide_char(const wchar_t *ws) {
         return NULL;
     }
 
-    char *utf8 = SDL_malloc(len);
+    char *utf8 = malloc(len);
     if (!utf8) {
         return NULL;
     }

app/src/util/str_util.h

@@ -1,11 +1,11 @@
 #ifndef STRUTIL_H
 #define STRUTIL_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stddef.h>
 
-#include "config.h"
-
 // like strncpy, except:
 //  - it copies at most n-1 chars
 //  - the dest string is nul-terminated
@@ -16,7 +16,7 @@ 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
+// returns the number of chars actually written (max n-1) if no truncation
 // occurred, or n if truncated
 size_t
 xstrjoin(char *dst, const char *const tokens[], char sep, size_t n);
@@ -43,6 +43,11 @@ parse_integers(const char *s, const char sep, size_t max_items, long *out);
 bool
 parse_integer_with_suffix(const char *s, long *out);
 
+// search s in the list separated by sep
+// for example, strlist_contains("a,bc,def", ',', "bc") returns true
+bool
+strlist_contains(const char *list, char sep, const char *s);
+
 // 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);

app/src/util/thread.c

@@ -0,0 +1,160 @@
+#include "thread.h"
+
+#include <assert.h>
+#include <SDL2/SDL_thread.h>
+
+#include "log.h"
+
+bool
+sc_thread_create(sc_thread *thread, sc_thread_fn fn, const char *name,
+                 void *userdata) {
+    SDL_Thread *sdl_thread = SDL_CreateThread(fn, name, userdata);
+    if (!sdl_thread) {
+        return false;
+    }
+
+    thread->thread = sdl_thread;
+    return true;
+}
+
+void
+sc_thread_join(sc_thread *thread, int *status) {
+    SDL_WaitThread(thread->thread, status);
+}
+
+bool
+sc_mutex_init(sc_mutex *mutex) {
+    SDL_mutex *sdl_mutex = SDL_CreateMutex();
+    if (!sdl_mutex) {
+        return false;
+    }
+
+    mutex->mutex = sdl_mutex;
+#ifndef NDEBUG
+    mutex->locker = 0;
+#endif
+    return true;
+}
+
+void
+sc_mutex_destroy(sc_mutex *mutex) {
+    SDL_DestroyMutex(mutex->mutex);
+}
+
+void
+sc_mutex_lock(sc_mutex *mutex) {
+    // SDL mutexes are recursive, but we don't want to use recursive mutexes
+    assert(!sc_mutex_held(mutex));
+    int r = SDL_LockMutex(mutex->mutex);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not lock mutex: %s", SDL_GetError());
+        abort();
+    }
+
+    mutex->locker = sc_thread_get_id();
+#else
+    (void) r;
+#endif
+}
+
+void
+sc_mutex_unlock(sc_mutex *mutex) {
+#ifndef NDEBUG
+    assert(sc_mutex_held(mutex));
+    mutex->locker = 0;
+#endif
+    int r = SDL_UnlockMutex(mutex->mutex);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not lock mutex: %s", SDL_GetError());
+        abort();
+    }
+#else
+    (void) r;
+#endif
+}
+
+sc_thread_id
+sc_thread_get_id(void) {
+    return SDL_ThreadID();
+}
+
+#ifndef NDEBUG
+bool
+sc_mutex_held(struct sc_mutex *mutex) {
+    return mutex->locker == sc_thread_get_id();
+}
+#endif
+
+bool
+sc_cond_init(sc_cond *cond) {
+    SDL_cond *sdl_cond = SDL_CreateCond();
+    if (!sdl_cond) {
+        return false;
+    }
+
+    cond->cond = sdl_cond;
+    return true;
+}
+
+void
+sc_cond_destroy(sc_cond *cond) {
+    SDL_DestroyCond(cond->cond);
+}
+
+void
+sc_cond_wait(sc_cond *cond, sc_mutex *mutex) {
+    int r = SDL_CondWait(cond->cond, mutex->mutex);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not wait on condition: %s", SDL_GetError());
+        abort();
+    }
+
+    mutex->locker = sc_thread_get_id();
+#else
+    (void) r;
+#endif
+}
+
+bool
+sc_cond_timedwait(sc_cond *cond, sc_mutex *mutex, uint32_t ms) {
+    int r = SDL_CondWaitTimeout(cond->cond, mutex->mutex, ms);
+#ifndef NDEBUG
+    if (r < 0) {
+        LOGC("Could not wait on condition with timeout: %s", SDL_GetError());
+        abort();
+    }
+
+    mutex->locker = sc_thread_get_id();
+#endif
+    assert(r == 0 || r == SDL_MUTEX_TIMEDOUT);
+    return r == 0;
+}
+
+void
+sc_cond_signal(sc_cond *cond) {
+    int r = SDL_CondSignal(cond->cond);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not signal a condition: %s", SDL_GetError());
+        abort();
+    }
+#else
+    (void) r;
+#endif
+}
+
+void
+sc_cond_broadcast(sc_cond *cond) {
+    int r = SDL_CondBroadcast(cond->cond);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not broadcast a condition: %s", SDL_GetError());
+        abort();
+    }
+#else
+    (void) r;
+#endif
+}

app/src/util/thread.h

@@ -0,0 +1,81 @@
+#ifndef SC_THREAD_H
+#define SC_THREAD_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/* Forward declarations */
+typedef struct SDL_Thread SDL_Thread;
+typedef struct SDL_mutex SDL_mutex;
+typedef struct SDL_cond SDL_cond;
+
+typedef int sc_thread_fn(void *);
+typedef unsigned int sc_thread_id;
+
+typedef struct sc_thread {
+    SDL_Thread *thread;
+} sc_thread;
+
+typedef struct sc_mutex {
+    SDL_mutex *mutex;
+#ifndef NDEBUG
+    sc_thread_id locker;
+#endif
+} sc_mutex;
+
+typedef struct sc_cond {
+    SDL_cond *cond;
+} sc_cond;
+
+bool
+sc_thread_create(sc_thread *thread, sc_thread_fn fn, const char *name,
+                 void *userdata);
+
+void
+sc_thread_join(sc_thread *thread, int *status);
+
+bool
+sc_mutex_init(sc_mutex *mutex);
+
+void
+sc_mutex_destroy(sc_mutex *mutex);
+
+void
+sc_mutex_lock(sc_mutex *mutex);
+
+void
+sc_mutex_unlock(sc_mutex *mutex);
+
+sc_thread_id
+sc_thread_get_id(void);
+
+#ifndef NDEBUG
+bool
+sc_mutex_held(struct sc_mutex *mutex);
+# define sc_mutex_assert(mutex) assert(sc_mutex_held(mutex))
+#else
+# define sc_mutex_assert(mutex)
+#endif
+
+bool
+sc_cond_init(sc_cond *cond);
+
+void
+sc_cond_destroy(sc_cond *cond);
+
+void
+sc_cond_wait(sc_cond *cond, sc_mutex *mutex);
+
+// return true on signaled, false on timeout
+bool
+sc_cond_timedwait(sc_cond *cond, sc_mutex *mutex, uint32_t ms);
+
+void
+sc_cond_signal(sc_cond *cond);
+
+void
+sc_cond_broadcast(sc_cond *cond);
+
+#endif

app/src/v4l2_sink.c

@@ -0,0 +1,356 @@
+#include "v4l2_sink.h"
+
+#include "util/log.h"
+#include "util/str_util.h"
+
+/** Downcast frame_sink to sc_v4l2_sink */
+#define DOWNCAST(SINK) container_of(SINK, struct sc_v4l2_sink, frame_sink)
+
+static const AVRational SCRCPY_TIME_BASE = {1, 1000000}; // timestamps in us
+
+static const AVOutputFormat *
+find_muxer(const char *name) {
+#ifdef SCRCPY_LAVF_HAS_NEW_MUXER_ITERATOR_API
+    void *opaque = NULL;
+#endif
+    const AVOutputFormat *oformat = NULL;
+    do {
+#ifdef SCRCPY_LAVF_HAS_NEW_MUXER_ITERATOR_API
+        oformat = av_muxer_iterate(&opaque);
+#else
+        oformat = av_oformat_next(oformat);
+#endif
+        // until null or containing the requested name
+    } while (oformat && !strlist_contains(oformat->name, ',', name));
+    return oformat;
+}
+
+static bool
+write_header(struct sc_v4l2_sink *vs, const AVPacket *packet) {
+    AVStream *ostream = vs->format_ctx->streams[0];
+
+    uint8_t *extradata = av_malloc(packet->size * sizeof(uint8_t));
+    if (!extradata) {
+        LOGC("Could not allocate extradata");
+        return false;
+    }
+
+    // copy the first packet to the extra data
+    memcpy(extradata, packet->data, packet->size);
+
+    ostream->codecpar->extradata = extradata;
+    ostream->codecpar->extradata_size = packet->size;
+
+    int ret = avformat_write_header(vs->format_ctx, NULL);
+    if (ret < 0) {
+        LOGE("Failed to write header to %s", vs->device_name);
+        return false;
+    }
+
+    return true;
+}
+
+static void
+rescale_packet(struct sc_v4l2_sink *vs, AVPacket *packet) {
+    AVStream *ostream = vs->format_ctx->streams[0];
+    av_packet_rescale_ts(packet, SCRCPY_TIME_BASE, ostream->time_base);
+}
+
+static bool
+write_packet(struct sc_v4l2_sink *vs, AVPacket *packet) {
+    if (!vs->header_written) {
+        bool ok = write_header(vs, packet);
+        if (!ok) {
+            return false;
+        }
+        vs->header_written = true;
+        return true;
+    }
+
+    rescale_packet(vs, packet);
+
+    bool ok = av_write_frame(vs->format_ctx, packet) >= 0;
+
+    // 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
+    (void) ok;
+
+    return true;
+}
+
+static bool
+encode_and_write_frame(struct sc_v4l2_sink *vs, const AVFrame *frame) {
+    int ret = avcodec_send_frame(vs->encoder_ctx, frame);
+    if (ret < 0 && ret != AVERROR(EAGAIN)) {
+        LOGE("Could not send v4l2 video frame: %d", ret);
+        return false;
+    }
+
+    AVPacket *packet = vs->packet;
+    ret = avcodec_receive_packet(vs->encoder_ctx, packet);
+    if (ret == 0) {
+        // A packet was received
+
+        bool ok = write_packet(vs, packet);
+        av_packet_unref(packet);
+        if (!ok) {
+            LOGW("Could not send packet to v4l2 sink");
+            return false;
+        }
+    } else if (ret != AVERROR(EAGAIN)) {
+        LOGE("Could not receive v4l2 video packet: %d", ret);
+        return false;
+    }
+
+    return true;
+}
+
+static int
+run_v4l2_sink(void *data) {
+    struct sc_v4l2_sink *vs = data;
+
+    for (;;) {
+        sc_mutex_lock(&vs->mutex);
+
+        while (!vs->stopped && vs->vb.pending_frame_consumed) {
+            sc_cond_wait(&vs->cond, &vs->mutex);
+        }
+
+        if (vs->stopped) {
+            sc_mutex_unlock(&vs->mutex);
+            break;
+        }
+
+        sc_mutex_unlock(&vs->mutex);
+
+        video_buffer_consume(&vs->vb, vs->frame);
+        bool ok = encode_and_write_frame(vs, vs->frame);
+        av_frame_unref(vs->frame);
+        if (!ok) {
+            LOGE("Could not send frame to v4l2 sink");
+            break;
+        }
+    }
+
+    LOGD("V4l2 thread ended");
+
+    return 0;
+}
+
+static bool
+sc_v4l2_sink_open(struct sc_v4l2_sink *vs) {
+    bool ok = video_buffer_init(&vs->vb);
+    if (!ok) {
+        return false;
+    }
+
+    ok = sc_mutex_init(&vs->mutex);
+    if (!ok) {
+        LOGC("Could not create mutex");
+        goto error_video_buffer_destroy;
+    }
+
+    ok = sc_cond_init(&vs->cond);
+    if (!ok) {
+        LOGC("Could not create cond");
+        goto error_mutex_destroy;
+    }
+
+    // FIXME
+    const AVOutputFormat *format = find_muxer("video4linux2,v4l2");
+    if (!format) {
+        LOGE("Could not find v4l2 muxer");
+        goto error_cond_destroy;
+    }
+
+    const AVCodec *encoder = avcodec_find_encoder(AV_CODEC_ID_RAWVIDEO);
+    if (!encoder) {
+        LOGE("Raw video encoder not found");
+        return false;
+    }
+
+    vs->format_ctx = avformat_alloc_context();
+    if (!vs->format_ctx) {
+        LOGE("Could not allocate v4l2 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>
+    vs->format_ctx->oformat = (AVOutputFormat *) format;
+#ifdef SCRCPY_LAVF_HAS_AVFORMATCONTEXT_URL
+    vs->format_ctx->url = strdup(vs->device_name);
+    if (!vs->format_ctx->url) {
+        LOGE("Could not strdup v4l2 device name");
+        goto error_avformat_free_context;
+        return false;
+    }
+#else
+    strncpy(vs->format_ctx->filename, vs->device_name,
+            sizeof(vs->format_ctx->filename));
+#endif
+
+    AVStream *ostream = avformat_new_stream(vs->format_ctx, encoder);
+    if (!ostream) {
+        LOGE("Could not allocate new v4l2 stream");
+        goto error_avformat_free_context;
+        return false;
+    }
+
+    ostream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
+    ostream->codecpar->codec_id = encoder->id;
+    ostream->codecpar->format = AV_PIX_FMT_YUV420P;
+    ostream->codecpar->width = vs->frame_size.width;
+    ostream->codecpar->height = vs->frame_size.height;
+
+    int ret = avio_open(&vs->format_ctx->pb, vs->device_name, AVIO_FLAG_WRITE);
+    if (ret < 0) {
+        LOGE("Failed to open output device: %s", vs->device_name);
+        // ostream will be cleaned up during context cleaning
+        goto error_avformat_free_context;
+    }
+
+    vs->encoder_ctx = avcodec_alloc_context3(encoder);
+    if (!vs->encoder_ctx) {
+        LOGC("Could not allocate codec context for v4l2");
+        goto error_avio_close;
+    }
+
+    vs->encoder_ctx->width = vs->frame_size.width;
+    vs->encoder_ctx->height = vs->frame_size.height;
+    vs->encoder_ctx->pix_fmt = AV_PIX_FMT_YUV420P;
+    vs->encoder_ctx->time_base.num = 1;
+    vs->encoder_ctx->time_base.den = 1;
+
+    if (avcodec_open2(vs->encoder_ctx, encoder, NULL) < 0) {
+        LOGE("Could not open codec for v4l2");
+        goto error_avcodec_free_context;
+    }
+
+    vs->frame = av_frame_alloc();
+    if (!vs->frame) {
+        LOGE("Could not create v4l2 frame");
+        goto error_avcodec_close;
+    }
+
+    vs->packet = av_packet_alloc();
+    if (!vs->packet) {
+        LOGE("Could not allocate packet");
+        goto error_av_frame_free;
+    }
+
+    LOGD("Starting v4l2 thread");
+    ok = sc_thread_create(&vs->thread, run_v4l2_sink, "v4l2", vs);
+    if (!ok) {
+        LOGC("Could not start v4l2 thread");
+        goto error_av_packet_free;
+    }
+
+    vs->header_written = false;
+    vs->stopped = false;
+
+    LOGI("v4l2 sink started to device: %s", vs->device_name);
+
+    return true;
+
+error_av_packet_free:
+    av_packet_free(&vs->packet);
+error_av_frame_free:
+    av_frame_free(&vs->frame);
+error_avcodec_close:
+    avcodec_close(vs->encoder_ctx);
+error_avcodec_free_context:
+    avcodec_free_context(&vs->encoder_ctx);
+error_avio_close:
+    avio_close(vs->format_ctx->pb);
+error_avformat_free_context:
+    avformat_free_context(vs->format_ctx);
+error_cond_destroy:
+    sc_cond_destroy(&vs->cond);
+error_mutex_destroy:
+    sc_mutex_destroy(&vs->mutex);
+error_video_buffer_destroy:
+    video_buffer_destroy(&vs->vb);
+
+    return false;
+}
+
+static void
+sc_v4l2_sink_close(struct sc_v4l2_sink *vs) {
+    sc_mutex_lock(&vs->mutex);
+    vs->stopped = true;
+    sc_cond_signal(&vs->cond);
+    sc_mutex_unlock(&vs->mutex);
+
+    sc_thread_join(&vs->thread, NULL);
+
+    av_packet_free(&vs->packet);
+    av_frame_free(&vs->frame);
+    avcodec_close(vs->encoder_ctx);
+    avcodec_free_context(&vs->encoder_ctx);
+    avio_close(vs->format_ctx->pb);
+    avformat_free_context(vs->format_ctx);
+    sc_cond_destroy(&vs->cond);
+    sc_mutex_destroy(&vs->mutex);
+    video_buffer_destroy(&vs->vb);
+}
+
+static bool
+sc_v4l2_sink_push(struct sc_v4l2_sink *vs, const AVFrame *frame) {
+    bool ok = video_buffer_push(&vs->vb, frame, NULL);
+    if (!ok) {
+        return false;
+    }
+
+    // signal possible change of vs->vb.pending_frame_consumed
+    sc_cond_signal(&vs->cond);
+
+    return true;
+}
+
+static bool
+sc_v4l2_frame_sink_open(struct sc_frame_sink *sink) {
+    struct sc_v4l2_sink *vs = DOWNCAST(sink);
+    return sc_v4l2_sink_open(vs);
+}
+
+static void
+sc_v4l2_frame_sink_close(struct sc_frame_sink *sink) {
+    struct sc_v4l2_sink *vs = DOWNCAST(sink);
+    sc_v4l2_sink_close(vs);
+}
+
+static bool
+sc_v4l2_frame_sink_push(struct sc_frame_sink *sink, const AVFrame *frame) {
+    struct sc_v4l2_sink *vs = DOWNCAST(sink);
+    return sc_v4l2_sink_push(vs, frame);
+}
+
+bool
+sc_v4l2_sink_init(struct sc_v4l2_sink *vs, const char *device_name,
+                  struct size frame_size) {
+    vs->device_name = strdup(device_name);
+    if (!vs->device_name) {
+        LOGE("Could not strdup v4l2 device name");
+        return false;
+    }
+
+    vs->frame_size = frame_size;
+
+    static const struct sc_frame_sink_ops ops = {
+        .open = sc_v4l2_frame_sink_open,
+        .close = sc_v4l2_frame_sink_close,
+        .push = sc_v4l2_frame_sink_push,
+    };
+
+    vs->frame_sink.ops = &ops;
+
+    return true;
+}
+
+void
+sc_v4l2_sink_destroy(struct sc_v4l2_sink *vs) {
+    free(vs->device_name);
+}

app/src/v4l2_sink.h

@@ -0,0 +1,39 @@
+#ifndef SC_V4L2_SINK_H
+#define SC_V4L2_SINK_H
+
+#include "common.h"
+
+#include "coords.h"
+#include "trait/frame_sink.h"
+#include "video_buffer.h"
+
+#include <libavformat/avformat.h>
+
+struct sc_v4l2_sink {
+    struct sc_frame_sink frame_sink; // frame sink trait
+
+    struct video_buffer vb;
+    AVFormatContext *format_ctx;
+    AVCodecContext *encoder_ctx;
+
+    char *device_name;
+    struct size frame_size;
+
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond cond;
+    bool stopped;
+    bool header_written;
+
+    AVFrame *frame;
+    AVPacket *packet;
+};
+
+bool
+sc_v4l2_sink_init(struct sc_v4l2_sink *vs, const char *device_name,
+                  struct size frame_size);
+
+void
+sc_v4l2_sink_destroy(struct sc_v4l2_sink *vs);
+
+#endif

app/src/video_buffer.c

@@ -1,113 +1,88 @@
 #include "video_buffer.h"
 
 #include <assert.h>
-#include <SDL2/SDL_mutex.h>
 #include <libavutil/avutil.h>
 #include <libavformat/avformat.h>
 
-#include "config.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 bool
-video_buffer_init(struct video_buffer *vb, struct fps_counter *fps_counter,
-                  bool render_expired_frames) {
-    vb->fps_counter = fps_counter;
-
-    if (!(vb->decoding_frame = av_frame_alloc())) {
-        goto error_0;
+video_buffer_init(struct video_buffer *vb) {
+    vb->pending_frame = av_frame_alloc();
+    if (!vb->pending_frame) {
+        return false;
     }
 
-    if (!(vb->rendering_frame = av_frame_alloc())) {
-        goto error_1;
+    vb->tmp_frame = av_frame_alloc();
+    if (!vb->tmp_frame) {
+        av_frame_free(&vb->pending_frame);
+        return false;
     }
 
-    if (!(vb->mutex = SDL_CreateMutex())) {
-        goto error_2;
+    bool ok = sc_mutex_init(&vb->mutex);
+    if (!ok) {
+        av_frame_free(&vb->pending_frame);
+        av_frame_free(&vb->tmp_frame);
+        return false;
     }
 
-    vb->render_expired_frames = render_expired_frames;
-    if (render_expired_frames) {
-        if (!(vb->rendering_frame_consumed_cond = SDL_CreateCond())) {
-            SDL_DestroyMutex(vb->mutex);
-            goto error_2;
-        }
-        // interrupted is not used if expired frames are not rendered
-        // since offering a frame will never block
-        vb->interrupted = false;
-    }
-
-    // there is initially no rendering frame, so consider it has already been
-    // consumed
-    vb->rendering_frame_consumed = true;
+    // there is initially no frame, so consider it has already been consumed
+    vb->pending_frame_consumed = true;
 
     return true;
-
-error_2:
-    av_frame_free(&vb->rendering_frame);
-error_1:
-    av_frame_free(&vb->decoding_frame);
-error_0:
-    return false;
 }
 
 void
 video_buffer_destroy(struct video_buffer *vb) {
-    if (vb->render_expired_frames) {
-        SDL_DestroyCond(vb->rendering_frame_consumed_cond);
-    }
-    SDL_DestroyMutex(vb->mutex);
-    av_frame_free(&vb->rendering_frame);
-    av_frame_free(&vb->decoding_frame);
+    sc_mutex_destroy(&vb->mutex);
+    av_frame_free(&vb->pending_frame);
+    av_frame_free(&vb->tmp_frame);
 }
 
-static void
-video_buffer_swap_frames(struct video_buffer *vb) {
-    AVFrame *tmp = vb->decoding_frame;
-    vb->decoding_frame = vb->rendering_frame;
-    vb->rendering_frame = tmp;
+static inline void
+swap_frames(AVFrame **lhs, AVFrame **rhs) {
+    AVFrame *tmp = *lhs;
+    *lhs = *rhs;
+    *rhs = tmp;
+}
+
+bool
+video_buffer_push(struct video_buffer *vb, const AVFrame *frame,
+                  bool *previous_frame_skipped) {
+    sc_mutex_lock(&vb->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(vb->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(&vb->pending_frame, &vb->tmp_frame);
+    av_frame_unref(vb->tmp_frame);
+
+    if (previous_frame_skipped) {
+        *previous_frame_skipped = !vb->pending_frame_consumed;
+    }
+    vb->pending_frame_consumed = false;
+
+    sc_mutex_unlock(&vb->mutex);
+
+    return true;
 }
 
 void
-video_buffer_offer_decoded_frame(struct video_buffer *vb,
-                                 bool *previous_frame_skipped) {
-    mutex_lock(vb->mutex);
-    if (vb->render_expired_frames) {
-        // wait for the current (expired) frame to be consumed
-        while (!vb->rendering_frame_consumed && !vb->interrupted) {
-            cond_wait(vb->rendering_frame_consumed_cond, vb->mutex);
-        }
-    } else if (!vb->rendering_frame_consumed) {
-        fps_counter_add_skipped_frame(vb->fps_counter);
-    }
+video_buffer_consume(struct video_buffer *vb, AVFrame *dst) {
+    sc_mutex_lock(&vb->mutex);
+    assert(!vb->pending_frame_consumed);
+    vb->pending_frame_consumed = true;
 
-    video_buffer_swap_frames(vb);
+    av_frame_move_ref(dst, vb->pending_frame);
+    // av_frame_move_ref() resets its source frame, so no need to call
+    // av_frame_unref()
 
-    *previous_frame_skipped = !vb->rendering_frame_consumed;
-    vb->rendering_frame_consumed = false;
-
-    mutex_unlock(vb->mutex);
-}
-
-const AVFrame *
-video_buffer_consume_rendered_frame(struct video_buffer *vb) {
-    assert(!vb->rendering_frame_consumed);
-    vb->rendering_frame_consumed = true;
-    fps_counter_add_rendered_frame(vb->fps_counter);
-    if (vb->render_expired_frames) {
-        // unblock video_buffer_offer_decoded_frame()
-        cond_signal(vb->rendering_frame_consumed_cond);
-    }
-    return vb->rendering_frame;
-}
-
-void
-video_buffer_interrupt(struct video_buffer *vb) {
-    if (vb->render_expired_frames) {
-        mutex_lock(vb->mutex);
-        vb->interrupted = true;
-        mutex_unlock(vb->mutex);
-        // wake up blocking wait
-        cond_signal(vb->rendering_frame_consumed_cond);
-    }
+    sc_mutex_unlock(&vb->mutex);
 }

app/src/video_buffer.h

@@ -1,49 +1,50 @@
 #ifndef VIDEO_BUFFER_H
 #define VIDEO_BUFFER_H
 
-#include <stdbool.h>
-#include <SDL2/SDL_mutex.h>
+#include "common.h"
+
+#include <stdbool.h>
 
-#include "config.h"
 #include "fps_counter.h"
+#include "util/thread.h"
 
 // forward declarations
 typedef struct AVFrame AVFrame;
 
+/**
+ * A video 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.
+ *
+ * The producer and the consumer typically do not live in the same thread.
+ * That's the reason why the callback on_frame_available() does not provide the
+ * frame as parameter: the consumer might post an event to its own thread to
+ * retrieve the pending frame from there, and that frame may have changed since
+ * the callback if producer pushed a new one in between.
+ */
+
 struct video_buffer {
-    AVFrame *decoding_frame;
-    AVFrame *rendering_frame;
-    SDL_mutex *mutex;
-    bool render_expired_frames;
-    bool interrupted;
-    SDL_cond *rendering_frame_consumed_cond;
-    bool rendering_frame_consumed;
-    struct fps_counter *fps_counter;
+    AVFrame *pending_frame;
+    AVFrame *tmp_frame; // To preserve the pending frame on error
+
+    sc_mutex mutex;
+
+    bool pending_frame_consumed;
 };
 
 bool
-video_buffer_init(struct video_buffer *vb, struct fps_counter *fps_counter,
-                  bool render_expired_frames);
+video_buffer_init(struct video_buffer *vb);
 
 void
 video_buffer_destroy(struct video_buffer *vb);
 
-// set the decoded frame as ready for rendering
-// this function locks frames->mutex during its execution
-// the output flag is set to report whether the previous frame has been skipped
-void
-video_buffer_offer_decoded_frame(struct video_buffer *vb,
-                                 bool *previous_frame_skipped);
+bool
+video_buffer_push(struct video_buffer *vb, const AVFrame *frame, bool *skipped);
 
-// mark the rendering frame as consumed and return it
-// MUST be called with frames->mutex locked!!!
-// the caller is expected to render the returned frame to some texture before
-// unlocking frames->mutex
-const AVFrame *
-video_buffer_consume_rendered_frame(struct video_buffer *vb);
-
-// wake up and avoid any blocking call
 void
-video_buffer_interrupt(struct video_buffer *vb);
+video_buffer_consume(struct video_buffer *vb, AVFrame *dst);
 
 #endif

app/tests/test_buffer_util.c

@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <assert.h>
 
 #include "util/buffer_util.h"

app/tests/test_cbuf.c

@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <assert.h>
 #include <string.h>
 

app/tests/test_cli.c

@@ -1,8 +1,9 @@
+#include "common.h"
+
 #include <assert.h>
 #include <string.h>
 
 #include "cli.h"
-#include "common.h"
 #include "scrcpy.h"
 
 static void test_flag_version(void) {
@@ -50,14 +51,13 @@ static void test_options(void) {
         "--fullscreen",
         "--max-fps", "30",
         "--max-size", "1024",
-        "--lock-video-orientation", "2",
+        "--lock-video-orientation=2", // optional arguments require '='
         // "--no-control" is not compatible with "--turn-screen-off"
         // "--no-display" is not compatible with "--fulscreen"
         "--port", "1234:1236",
         "--push-target", "/sdcard/Movies",
         "--record", "file",
         "--record-format", "mkv",
-        "--render-expired-frames",
         "--serial", "0123456789abcdef",
         "--show-touches",
         "--turn-screen-off",
@@ -86,7 +86,6 @@ static void test_options(void) {
     assert(!strcmp(opts->push_target, "/sdcard/Movies"));
     assert(!strcmp(opts->record_filename, "file"));
     assert(opts->record_format == SC_RECORD_FORMAT_MKV);
-    assert(opts->render_expired_frames);
     assert(!strcmp(opts->serial, "0123456789abcdef"));
     assert(opts->show_touches);
     assert(opts->turn_screen_off);

app/tests/test_control_msg_serialize.c

@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <assert.h>
 #include <string.h>
 
@@ -15,7 +17,7 @@ static void test_serialize_inject_keycode(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 14);
 
     const unsigned char expected[] = {
@@ -37,7 +39,7 @@ static void test_serialize_inject_text(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 18);
 
     const unsigned char expected[] = {
@@ -57,7 +59,7 @@ static void test_serialize_inject_text_long(void) {
     msg.inject_text.text = text;
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 5 + CONTROL_MSG_INJECT_TEXT_MAX_LENGTH);
 
     unsigned char expected[5 + CONTROL_MSG_INJECT_TEXT_MAX_LENGTH];
@@ -93,7 +95,7 @@ static void test_serialize_inject_touch_event(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 28);
 
     const unsigned char expected[] = {
@@ -128,7 +130,7 @@ static void test_serialize_inject_scroll_event(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 21);
 
     const unsigned char expected[] = {
@@ -144,14 +146,18 @@ static void test_serialize_inject_scroll_event(void) {
 static void test_serialize_back_or_screen_on(void) {
     struct control_msg msg = {
         .type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
+        .back_or_screen_on = {
+            .action = AKEY_EVENT_ACTION_UP,
+        },
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
-    assert(size == 1);
+    size_t size = control_msg_serialize(&msg, buf);
+    assert(size == 2);
 
     const unsigned char expected[] = {
         CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
+        0x01, // AKEY_EVENT_ACTION_UP
     };
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
@@ -162,7 +168,7 @@ static void test_serialize_expand_notification_panel(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -171,17 +177,32 @@ static void test_serialize_expand_notification_panel(void) {
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
 
-static void test_serialize_collapse_notification_panel(void) {
+static void test_serialize_expand_settings_panel(void) {
     struct control_msg msg = {
-        .type = CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL,
+        .type = CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL,
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
-        CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL,
+        CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL,
+    };
+    assert(!memcmp(buf, expected, sizeof(expected)));
+}
+
+static void test_serialize_collapse_panels(void) {
+    struct control_msg msg = {
+        .type = CONTROL_MSG_TYPE_COLLAPSE_PANELS,
+    };
+
+    unsigned char buf[CONTROL_MSG_MAX_SIZE];
+    size_t size = control_msg_serialize(&msg, buf);
+    assert(size == 1);
+
+    const unsigned char expected[] = {
+        CONTROL_MSG_TYPE_COLLAPSE_PANELS,
     };
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
@@ -192,7 +213,7 @@ static void test_serialize_get_clipboard(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -211,7 +232,7 @@ static void test_serialize_set_clipboard(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 19);
 
     const unsigned char expected[] = {
@@ -232,7 +253,7 @@ static void test_serialize_set_screen_power_mode(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 2);
 
     const unsigned char expected[] = {
@@ -248,7 +269,7 @@ static void test_serialize_rotate_device(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -268,7 +289,8 @@ int main(int argc, char *argv[]) {
     test_serialize_inject_scroll_event();
     test_serialize_back_or_screen_on();
     test_serialize_expand_notification_panel();
-    test_serialize_collapse_notification_panel();
+    test_serialize_expand_settings_panel();
+    test_serialize_collapse_panels();
     test_serialize_get_clipboard();
     test_serialize_set_clipboard();
     test_serialize_set_screen_power_mode();

app/tests/test_device_msg_deserialize.c

@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <assert.h>
 #include <string.h>
 

app/tests/test_queue.c

@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <assert.h>
 
 #include "util/queue.h"

app/tests/test_strutil.c

@@ -1,8 +1,9 @@
+#include "common.h"
+
 #include <assert.h>
 #include <limits.h>
 #include <stdio.h>
 #include <string.h>
-#include <SDL2/SDL.h>
 
 #include "util/str_util.h"
 
@@ -136,7 +137,7 @@ static void test_strquote(void) {
     // add '"' at the beginning and the end
     assert(!strcmp("\"abcde\"", out));
 
-    SDL_free(out);
+    free(out);
 }
 
 static void test_utf8_truncate(void) {
@@ -286,6 +287,18 @@ static void test_parse_integer_with_suffix(void) {
     assert(!ok);
 }
 
+static void test_strlist_contains(void) {
+    assert(strlist_contains("a,bc,def", ',', "bc"));
+    assert(!strlist_contains("a,bc,def", ',', "b"));
+    assert(strlist_contains("", ',', ""));
+    assert(strlist_contains("abc,", ',', ""));
+    assert(strlist_contains(",abc", ',', ""));
+    assert(strlist_contains("abc,,def", ',', ""));
+    assert(!strlist_contains("abc", ',', ""));
+    assert(strlist_contains(",,|x", '|', ",,"));
+    assert(strlist_contains("xyz", '\0', "xyz"));
+}
+
 int main(int argc, char *argv[]) {
     (void) argc;
     (void) argv;
@@ -303,5 +316,6 @@ int main(int argc, char *argv[]) {
     test_parse_integer();
     test_parse_integers();
     test_parse_integer_with_suffix();
+    test_strlist_contains();
     return 0;
 }

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.2'
+        classpath 'com.android.tools.build:gradle:4.0.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -19,6 +19,9 @@ allprojects {
         google()
         jcenter()
     }
+    tasks.withType(JavaCompile) {
+        options.compilerArgs << "-Xlint:deprecation"
+    }
 }
 
 task clean(type: Delete) {

cross_win32.txt

@@ -2,11 +2,11 @@
 
 [binaries]
 name = 'mingw'
-c = '/usr/bin/i686-w64-mingw32-gcc'
-cpp = '/usr/bin/i686-w64-mingw32-g++'
-ar = '/usr/bin/i686-w64-mingw32-ar'
-strip = '/usr/bin/i686-w64-mingw32-strip'
-pkgconfig = '/usr/bin/i686-w64-mingw32-pkg-config'
+c = 'i686-w64-mingw32-gcc'
+cpp = 'i686-w64-mingw32-g++'
+ar = 'i686-w64-mingw32-ar'
+strip = 'i686-w64-mingw32-strip'
+pkgconfig = 'i686-w64-mingw32-pkg-config'
 
 [host_machine]
 system = 'windows'
@@ -17,4 +17,4 @@ endian = 'little'
 [properties]
 prebuilt_ffmpeg_shared = 'ffmpeg-4.3.1-win32-shared'
 prebuilt_ffmpeg_dev = 'ffmpeg-4.3.1-win32-dev'
-prebuilt_sdl2 = 'SDL2-2.0.12/i686-w64-mingw32'
+prebuilt_sdl2 = 'SDL2-2.0.14/i686-w64-mingw32'

cross_win64.txt

@@ -2,11 +2,11 @@
 
 [binaries]
 name = 'mingw'
-c = '/usr/bin/x86_64-w64-mingw32-gcc'
-cpp = '/usr/bin/x86_64-w64-mingw32-g++'
-ar = '/usr/bin/x86_64-w64-mingw32-ar'
-strip = '/usr/bin/x86_64-w64-mingw32-strip'
-pkgconfig = '/usr/bin/x86_64-w64-mingw32-pkg-config'
+c = 'x86_64-w64-mingw32-gcc'
+cpp = 'x86_64-w64-mingw32-g++'
+ar = 'x86_64-w64-mingw32-ar'
+strip = 'x86_64-w64-mingw32-strip'
+pkgconfig = 'x86_64-w64-mingw32-pkg-config'
 
 [host_machine]
 system = 'windows'
@@ -17,4 +17,4 @@ endian = 'little'
 [properties]
 prebuilt_ffmpeg_shared = 'ffmpeg-4.3.1-win64-shared'
 prebuilt_ffmpeg_dev = 'ffmpeg-4.3.1-win64-dev'
-prebuilt_sdl2 = 'SDL2-2.0.12/x86_64-w64-mingw32'
+prebuilt_sdl2 = 'SDL2-2.0.14/x86_64-w64-mingw32'

data/scrcpy-console.bat

@@ -0,0 +1,4 @@
+@echo off
+scrcpy.exe %*
+:: if the exit code is >= 1, then pause
+if errorlevel 1 pause

data/scrcpy-noconsole.vbs

@@ -0,0 +1,7 @@
+strCommand = "cmd /c scrcpy.exe"
+
+For Each Arg In WScript.Arguments
+    strCommand = strCommand & " """ & replace(Arg, """", """""""""") & """"
+Next
+
+CreateObject("Wscript.Shell").Run strCommand, 0, false

install_release.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -e
+
+BUILDDIR=build-auto
+PREBUILT_SERVER_URL=https://github.com/Genymobile/scrcpy/releases/download/v1.17/scrcpy-server-v1.17
+PREBUILT_SERVER_SHA256=11b5ad2d1bc9b9730fb7254a78efd71a8ff46b1938ff468e47a21b653a1b6725
+
+echo "[scrcpy] Downloading prebuilt server..."
+wget "$PREBUILT_SERVER_URL" -O scrcpy-server
+echo "[scrcpy] Verifying prebuilt server..."
+echo "$PREBUILT_SERVER_SHA256  scrcpy-server" | sha256sum --check
+
+echo "[scrcpy] Building client..."
+rm -rf "$BUILDDIR"
+meson "$BUILDDIR" --buildtype release --strip -Db_lto=true \
+    -Dprebuilt_server=scrcpy-server
+cd "$BUILDDIR"
+ninja
+
+echo "[scrcpy] Installing (sudo)..."
+sudo ninja install

meson.build

@@ -1,9 +1,10 @@
 project('scrcpy', 'c',
-        version: '1.15',
+        version: '1.17',
         meson_version: '>= 0.48',
         default_options: [
             'c_std=c11',
             'warning_level=2',
+            'b_ndebug=if-release',
         ])
 
 if get_option('compile_app')

meson_options.txt

@@ -1,9 +1,7 @@
 option('compile_app', type: 'boolean', value: true, description: 'Build the client')
 option('compile_server', type: 'boolean', value: true, description: 'Build the server')
 option('crossbuild_windows', type: 'boolean', value: false, description: 'Build for Windows from Linux')
-option('windows_noconsole', type: 'boolean', value: false, description: 'Disable console on Windows (pass -mwindows flag)')
 option('prebuilt_server', type: 'string', description: 'Path of the prebuilt server')
 option('portable', type: 'boolean', value: false, description: 'Use scrcpy-server from the same directory as the scrcpy executable')
-option('hidpi_support', type: 'boolean', value: true, description: 'Enable High DPI support')
 option('server_debugger', type: 'boolean', value: false, description: 'Run a server debugger and wait for a client to be attached')
 option('server_debugger_method', type: 'combo', choices: ['old', 'new'], value: 'new', description: 'Select the debugger method (Android < 9: "old", Android >= 9: "new")')

prebuilt-deps/Makefile

@@ -10,31 +10,31 @@ prepare-win32: prepare-sdl2 prepare-ffmpeg-shared-win32 prepare-ffmpeg-dev-win32
 prepare-win64: prepare-sdl2 prepare-ffmpeg-shared-win64 prepare-ffmpeg-dev-win64 prepare-adb
 
 prepare-ffmpeg-shared-win32:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/shared/ffmpeg-4.3.1-win32-shared.zip \
+	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win32-shared.zip \
 		357af9901a456f4dcbacd107e83a934d344c9cb07ddad8aaf80612eeab7d26d2 \
 		ffmpeg-4.3.1-win32-shared
 
 prepare-ffmpeg-dev-win32:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/dev/ffmpeg-4.3.1-win32-dev.zip \
+	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win32-dev.zip \
 		230efb08e9bcf225bd474da29676c70e591fc94d8790a740ca801408fddcb78b \
 		ffmpeg-4.3.1-win32-dev
 
 prepare-ffmpeg-shared-win64:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/shared/ffmpeg-4.3.1-win64-shared.zip \
+	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win64-shared.zip \
 		dd29b7f92f48dead4dd940492c7509138c0f99db445076d0a597007298a79940 \
 		ffmpeg-4.3.1-win64-shared
 
 prepare-ffmpeg-dev-win64:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/dev/ffmpeg-4.3.1-win64-dev.zip \
+	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win64-dev.zip \
 		2e8038242cf8e1bd095c2978f196ff0462b122cc6ef7e74626a6af15459d8b81 \
 		ffmpeg-4.3.1-win64-dev
 
 prepare-sdl2:
-	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.12-mingw.tar.gz \
-		e614a60f797e35ef9f3f96aef3dc6a1d786de3cc7ca6216f97e435c0b6aafc46 \
-		SDL2-2.0.12
+	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.14-mingw.tar.gz \
+		405eaff3eb18f2e08fe669ef9e63bc9a8710b7d343756f238619761e9b60407d \
+		SDL2-2.0.14
 
 prepare-adb:
-	@./prepare-dep https://dl.google.com/android/repository/platform-tools_r30.0.4-windows.zip \
-		413182fff6c5957911e231b9e97e6be4fc6a539035e3dfb580b5c54bd5950fee \
+	@./prepare-dep https://dl.google.com/android/repository/platform-tools_r30.0.5-windows.zip \
+		549ba2bdc31f335eb8a504f005f77606a479cc216d6b64a3e8b64c780003661f \
 		platform-tools

prebuilt-deps/prepare-dep

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 url="$1"
 sum="$2"

release.mk

@@ -9,21 +9,20 @@
 # the server to the device.
 
 .PHONY: default clean \
+	test \
 	build-server \
 	prepare-deps-win32 prepare-deps-win64 \
-	build-win32 build-win32-noconsole \
-	build-win64 build-win64-noconsole \
+	build-win32 build-win64 \
 	dist-win32 dist-win64 \
 	zip-win32 zip-win64 \
-	sums release
+	release
 
 GRADLE ?= ./gradlew
 
+TEST_BUILD_DIR := build-test
 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
@@ -33,19 +32,35 @@ 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 $(DIST)/"
+RELEASE_DIR := release-$(VERSION)
+
+release: clean test build-server zip-win32 zip-win64
+	mkdir -p "$(RELEASE_DIR)"
+	cp "$(SERVER_BUILD_DIR)/server/scrcpy-server" \
+		"$(RELEASE_DIR)/scrcpy-server-$(VERSION)"
+	cp "$(DIST)/$(WIN32_TARGET)" "$(RELEASE_DIR)"
+	cp "$(DIST)/$(WIN64_TARGET)" "$(RELEASE_DIR)"
+	cd "$(RELEASE_DIR)" && \
+		sha256sum "scrcpy-server-$(VERSION)" \
+			"scrcpy-win32-$(VERSION).zip" \
+			"scrcpy-win64-$(VERSION).zip" > SHA256SUMS.txt
+	@echo "Release generated in $(RELEASE_DIR)/"
 
 clean:
 	$(GRADLE) clean
-	rm -rf "$(SERVER_BUILD_DIR)" "$(WIN32_BUILD_DIR)" "$(WIN64_BUILD_DIR)" \
-		   "$(WIN32_NOCONSOLE_BUILD_DIR)" "$(WIN64_NOCONSOLE_BUILD_DIR)" "$(DIST)"
+	rm -rf "$(DIST)" "$(TEST_BUILD_DIR)" "$(SERVER_BUILD_DIR)" \
+		"$(WIN32_BUILD_DIR)" "$(WIN64_BUILD_DIR)"
+
+test:
+	[ -d "$(TEST_BUILD_DIR)" ] || ( mkdir "$(TEST_BUILD_DIR)" && \
+		meson "$(TEST_BUILD_DIR)" -Db_sanitize=address )
+	ninja -C "$(TEST_BUILD_DIR)"
+	$(GRADLE) -p server check
 
 build-server:
 	[ -d "$(SERVER_BUILD_DIR)" ] || ( mkdir "$(SERVER_BUILD_DIR)" && \
-		meson "$(SERVER_BUILD_DIR)" \
-			--buildtype release -Dcompile_app=false )
-		ninja -C "$(SERVER_BUILD_DIR)"
+		meson "$(SERVER_BUILD_DIR)" --buildtype release -Dcompile_app=false )
+	ninja -C "$(SERVER_BUILD_DIR)"
 
 prepare-deps-win32:
 	-$(MAKE) -C prebuilt-deps prepare-win32
@@ -60,17 +75,6 @@ build-win32: prepare-deps-win32
 			-Dportable=true )
 	ninja -C "$(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
 
@@ -84,22 +88,12 @@ build-win64: prepare-deps-win64
 			-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
+dist-win32: build-server build-win32
 	mkdir -p "$(DIST)/$(WIN32_TARGET_DIR)"
 	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp "$(WIN32_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp "$(WIN32_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/scrcpy-noconsole.exe"
+	cp data/scrcpy-console.bat "$(DIST)/$(WIN32_TARGET_DIR)"
+	cp data/scrcpy-noconsole.vbs "$(DIST)/$(WIN32_TARGET_DIR)"
 	cp prebuilt-deps/ffmpeg-4.3.1-win32-shared/bin/avutil-56.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win32-shared/bin/avcodec-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win32-shared/bin/avformat-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
@@ -108,13 +102,14 @@ dist-win32: build-server build-win32 build-win32-noconsole
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.12/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/SDL2-2.0.14/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 
-dist-win64: build-server build-win64 build-win64-noconsole
+dist-win64: build-server build-win64
 	mkdir -p "$(DIST)/$(WIN64_TARGET_DIR)"
 	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp "$(WIN64_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp "$(WIN64_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/scrcpy-noconsole.exe"
+	cp data/scrcpy-console.bat "$(DIST)/$(WIN64_TARGET_DIR)"
+	cp data/scrcpy-noconsole.vbs "$(DIST)/$(WIN64_TARGET_DIR)"
 	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
@@ -123,7 +118,7 @@ dist-win64: build-server build-win64 build-win64-noconsole
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.12/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/SDL2-2.0.14/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 
 zip-win32: dist-win32
 	cd "$(DIST)/$(WIN32_TARGET_DIR)"; \
@@ -132,7 +127,3 @@ zip-win32: dist-win32
 zip-win64: dist-win64
 	cd "$(DIST)/$(WIN64_TARGET_DIR)"; \
 		zip -r "../$(WIN64_TARGET)" .
-
-sums:
-	cd "$(DIST)"; \
-		sha256sum *.zip > SHA256SUMS.txt

release.sh

@@ -1,44 +1,2 @@
 #!/bin/bash
-set -e
-
-# test locally
-TESTDIR=build_test
-rm -rf "$TESTDIR"
-# run client tests with ASAN enabled
-meson "$TESTDIR" -Db_sanitize=address
-ninja -C"$TESTDIR" test
-
-# test server
-GRADLE=${GRADLE:-./gradlew}
-$GRADLE -p server check
-
-BUILDDIR=build_release
-rm -rf "$BUILDDIR"
-meson "$BUILDDIR" --buildtype release --strip -Db_lto=true
-cd "$BUILDDIR"
-ninja
-cd -
-
-# build Windows releases
-make -f Makefile.CrossWindows
-
-# the generated server must be the same everywhere
-cmp "$BUILDDIR/server/scrcpy-server" dist/scrcpy-win32/scrcpy-server
-cmp "$BUILDDIR/server/scrcpy-server" dist/scrcpy-win64/scrcpy-server
-
-# get version name
-TAG=$(git describe --tags --always)
-
-# create release directory
-mkdir -p "release-$TAG"
-cp "$BUILDDIR/server/scrcpy-server" "release-$TAG/scrcpy-server-$TAG"
-cp "dist/scrcpy-win32-$TAG.zip" "release-$TAG/"
-cp "dist/scrcpy-win64-$TAG.zip" "release-$TAG/"
-
-# generate checksums
-cd "release-$TAG"
-sha256sum "scrcpy-server-$TAG" \
-          "scrcpy-win32-$TAG.zip" \
-          "scrcpy-win64-$TAG.zip" > SHA256SUMS.txt
-
-echo "Release generated in release-$TAG/"
+make -f release.mk

run

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Run scrcpy generated in the specified BUILDDIR.
 #
 # This provides the same feature as "ninja run", except that it is possible to

scripts/run-scrcpy.sh

@@ -1,2 +1,2 @@
-#!/bin/bash
+#!/usr/bin/env bash
 SCRCPY_SERVER_PATH="$MESON_BUILD_ROOT/server/scrcpy-server" "$MESON_BUILD_ROOT/app/scrcpy"