Show a friendly hint for adb installation

Signed-off-by: Romain Vimont <rom@rom1v.com>
Accept port range
2020-01-18 17:48:42 +01:00 · 2020-01-18 17:21:00 +01:00 · 2020-01-18 17:21:00 +01:00 · 2020-01-18 17:21:00 +01:00 · 2020-01-18 17:21:00 +01:00 · 2020-01-17 21:00:14 +01:00
30 changed files with 1913 additions and 740 deletions
--- a/BUILD.md
+++ b/BUILD.md
@ -40,7 +40,7 @@ Install the required packages from your package manager.

 ```bash
 # runtime dependencies
-sudo apt install ffmpeg libsdl2-2.0-0
+sudo apt install ffmpeg libsdl2-2.0-0 adb

 # client build dependencies
 sudo apt install gcc git pkg-config meson ninja-build \
@ -233,10 +233,10 @@ You can then [run](README.md#run) _scrcpy_.

 ## Prebuilt server

- - [`scrcpy-server-v1.11`][direct-scrcpy-server]  
-   _(SHA-256: ff3a454012e91d9185cfe8ca7691cea16c43a7dcc08e92fa47ab9f0ea675abd1)_
+ - [`scrcpy-server-v1.12.1`][direct-scrcpy-server]  
+   _(SHA-256: 63e569c8a1d0c1df31d48c4214871c479a601782945fed50c1e61167d78266ea)_

-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.11/scrcpy-server-v1.11
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-server-v1.12.1

 Download the prebuilt server somewhere, and specify its path during the Meson
 configuration:
--- a/FAQ.ko.md
+++ b/FAQ.ko.md
@ -0,0 +1,84 @@
+# 자주하는 질문 (FAQ)
+
+다음은 자주 제보되는 문제들과 그들의 현황입니다.
+
+
+### Window 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.
+
+[drivers]: https://developer.android.com/studio/run/oem-usb.html
+
+
+### 내 디바이스의 미러링만 가능하고, 디바이스와 상호작용을 할 수 없습니다.
+
+일부 디바이스에서는, [simulating input]을 허용하기 위해서 한가지 옵션을 활성화해야 할 수도 있습니다.
+개발자 옵션에서 (developer options) 다음을 활성화 하세요:
+
+> **USB debugging (Security settings)**
+> _권한 부여와 USB 디버깅을 통한 simulating input을 허용한다_
+
+[simulating input]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+### 마우스 클릭이 다른 곳에 적용됩니다.
+
+Mac 운영체제에서, HiDPI support 와 여러 스크린 창이 있는 경우, 입력 위치가 잘못 파악될 수 있습니다.
+[issue 15]를 참고하세요.
+
+[issue 15]: https://github.com/Genymobile/scrcpy/issues/15
+
+차선책은 HiDPI support을 비활성화 하고 build하는 방법입니다:
+
+```bash
+meson x --buildtype release -Dhidpi_support=false
+```
+
+하지만, 동영상은 낮은 해상도로 재생될 것 입니다.
+
+
+### HiDPI display의 화질이 낮습니다.
+
+Windows에서는, [scaling behavior] 환경을 설정해야 할 수도 있습니다.
+
+> `scrcpy.exe` > Properties > Compatibility > Change high DPI settings >
+> Override high DPI scaling behavior > Scaling performed by: _Application_.
+
+[scaling behavior]: https://github.com/Genymobile/scrcpy/issues/40#issuecomment-424466723
+
+
+### KWin compositor가 실행되지 않습니다
+
+Plasma Desktop에서는,_scrcpy_ 가 실행중에는 compositor가 비활성화 됩니다.
+
+차석책으로는, ["Block compositing"를 비활성화하세요][kwin].
+
+[kwin]: https://github.com/Genymobile/scrcpy/issues/114#issuecomment-378778613
+
+
+###비디오 스트림을 열 수 없는 에러가 발생합니다.(Could not open video stream).
+
+여러가지 원인이 있을 수 있습니다. 가장 흔한 원인은 디바이스의 하드웨어 인코더(hardware encoder)가
+주어진 해상도를 인코딩할 수 없는 경우입니다.
+
+```
+ERROR: Exception on thread Thread[main,5,main]
+android.media.MediaCodec$CodecException: Error 0xfffffc0e
+...
+Exit due to uncaughtException in main thread:
+ERROR: Could not open video stream
+INFO: Initial texture: 1080x2336
+```
+
+더 낮은 해상도로 시도 해보세요:
+
+```
+scrcpy -m 1920
+scrcpy -m 1024
+scrcpy -m 800
+```
--- a/README.ko.md
+++ b/README.ko.md
@ -0,0 +1,498 @@
+# scrcpy (v1.11)
+
+This document will be updated frequently along with the original Readme file
+이 문서는 원어 리드미 파일의 업데이트에 따라 종종 업데이트 될 것입니다
+
+ 이 어플리케이션은 UBS ( 혹은 [TCP/IP][article-tcpip] ) 로 연결된 Android 디바이스를 화면에 보여주고 관리하는 것을 제공합니다.
+ _GNU/Linux_, _Windows_ 와 _macOS_ 상에서 작동합니다.
+ (아래 설명에서 디바이스는 안드로이드 핸드폰을 의미합니다.)
+
+[article-tcpip]:https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/
+
+![screenshot](https://github.com/Genymobile/scrcpy/blob/master/assets/screenshot-debian-600.jpg?raw=true)
+
+주요 기능은 다음과 같습니다.
+
+ - **가벼움** (기본적이며 디바이스의 화면만을 보여줌)
+ - **뛰어난 성능** (30~60fps)
+ - **높은 품질** (1920×1080 이상의 해상도)
+ - **빠른 반응 속도** ([35~70ms][lowlatency])
+ - **짧은 부팅 시간** (첫 사진을 보여주는데 최대 1초 소요됨)
+ - **장치 설치와는 무관함** (디바이스에 설치하지 않아도 됨)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## 요구사항
+
+안드로이드 장치는 최소 API 21 (Android 5.0) 을 필요로 합니다.
+
+디바이스에 [adb debugging][enable-adb]이 가능한지 확인하십시오.
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+어떤 디바이스에서는, 키보드와 마우스를 사용하기 위해서 [추가 옵션][control] 이 필요하기도 합니다.
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## 앱 설치하기
+
+
+### Linux (리눅스)
+
+리눅스 상에서는 보통 [어플을 직접 설치][BUILD] 해야합니다. 어렵지 않으므로 걱정하지 않아도 됩니다.
+
+[BUILD]:https://github.com/Genymobile/scrcpy/blob/master/BUILD.md
+
+[Snap] 패키지가 가능합니다 : [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+Arch Linux에서, [AUR] 패키지가 가능합니다 : [`scrcpy`][aur-link].
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+Gentoo에서 ,[Ebuild] 가 가능합니다 : [`scrcpy/`][ebuild-link].
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+
+### Windows (윈도우)
+
+윈도우 상에서, 간단하게 설치하기 위해 종속성이 있는 사전 구축된 아카이브가 제공됩니다 (`adb` 포함) :
+해당 파일은 Readme원본 링크를 통해서 다운로드가 가능합니다.
+ - [`scrcpy-win`][direct-win]
+
+[direct-win]: https://github.com/Genymobile/scrcpy/blob/master/README.md#windows
+
+
+[어플을 직접 설치][BUILD] 할 수도 있습니다.
+
+
+### macOS (맥 OS)
+
+이 어플리케이션은 아래 사항을 따라 설치한다면 [Homebrew] 에서도 사용 가능합니다 :
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+`PATH` 로부터 접근 가능한 `adb` 가 필요합니다. 아직 설치하지 않았다면 다음을 따라 설치해야 합니다 :
+
+```bash
+brew cask install android-platform-tools
+```
+
+[어플을 직접 설치][BUILD] 할 수도 있습니다.
+
+
+## 실행
+
+안드로이드 디바이스를 연결하고 실행하십시오:
+
+```bash
+scrcpy
+```
+
+다음과 같이 명령창 옵션 기능도 제공합니다.
+
+```bash
+scrcpy --help
+```
+
+## 기능
+
+### 캡쳐 환경 설정
+
+
+###사이즈 재정의
+
+가끔씩 성능을 향상시키기위해 안드로이드 디바이스를 낮은 해상도에서 미러링하는 것이 유용할 때도 있습니다.
+
+너비와 높이를 제한하기 위해 특정 값으로 지정할 수 있습니다 (e.g. 1024) :
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # 축약 버전
+```
+
+이 외의 크기도 디바이스의 가로 세로 비율이 유지된 상태에서 계산됩니다.
+이러한 방식으로 디바이스 상에서 1920×1080 는 모니터 상에서1024×576로 미러링될 것 입니다.
+
+
+### bit-rate 변경
+
+기본 bit-rate 는 8 Mbps입니다. 비디오 bit-rate 를 변경하기 위해선 다음과 같이 입력하십시오 (e.g. 2 Mbps로 변경):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # 축약 버전
+```
+
+###프레임 비율 제한
+
+안드로이드 버전 10이상의 디바이스에서는, 다음의 명령어로 캡쳐 화면의 프레임 비율을 제한할 수 있습니다:
+
+```bash
+scrcpy --max-fps 15
+```
+
+
+### Crop (잘라내기)
+
+디바이스 화면은 화면의 일부만 미러링하기 위해 잘라질 것입니다.
+
+예를 들어, *Oculus Go* 의 한 쪽 눈만 미러링할 때 유용합니다 :
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 1224x1440 at offset (0,0)
+scrcpy -c 1224:1440:0:0       # 축약 버전
+```
+
+만약 `--max-size` 도 지정하는 경우, 잘라낸 다음에 재정의된 크기가 적용될 것입니다.
+
+
+### 화면 녹화
+
+미러링하는 동안 화면 녹화를 할 수 있습니다 :
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+녹화하는 동안 미러링을 멈출 수 있습니다 :
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# Ctrl+C 로 녹화를 중단할 수 있습니다.
+# 윈도우 상에서 Ctrl+C 는 정상정으로 종료되지 않을 수 있으므로, 디바이스 연결을 해제하십시오.
+```
+
+"skipped frames" 은 모니터 화면에 보여지지 않았지만 녹화되었습니다 ( 성능 문제로 인해 ). 프레임은 디바이스 상에서 _타임 스탬프 ( 어느 시점에 데이터가 존재했다는 사실을 증명하기 위해 특정 위치에 시각을 표시 )_ 되었으므로, [packet delay
+variation] 은 녹화된 파일에 영향을 끼치지 않습니다.
+
+[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+## 연결
+
+### 무선연결
+
+_Scrcpy_ 장치와 정보를 주고받기 위해 `adb` 를 사용합니다.  `adb` 는 TCIP/IP 를 통해 디바이스와 [연결][connect] 할 수 있습니다 :
+
+1. 컴퓨터와 디바이스를 동일한 Wi-Fi 에 연결합니다.
+2. 디바이스의 IP address 를 확인합니다 (설정 → 내 기기 → 상태 / 혹은 인터넷에 '내 IP'검색 시 확인 가능합니다. ).
+3. TCP/IP 를 통해 디바이스에서 adb 를 사용할 수 있게 합니다: `adb tcpip 5555`.
+4. 디바이스 연결을 해제합니다.
+5. adb 를 통해 디바이스에 연결을 합니다\: `adb connect DEVICE_IP:5555` _(`DEVICE_IP` 대신)_.
+6. `scrcpy` 실행합니다.
+
+다음은 bit-rate 와 해상도를 줄이는데 유용합니다 :
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # 축약 버전
+```
+
+[connect]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+
+### 여러 디바이스 사용 가능
+
+만약에 여러 디바이스들이 `adb devices` 목록에 표시되었다면, _serial_ 을 명시해야합니다:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # 축약 버전
+```
+
+_scrcpy_ 로 여러 디바이스를 연결해 사용할 수 있습니다.
+
+
+#### SSH tunnel
+
+떨어져 있는 디바이스와 연결하기 위해서는, 로컬 `adb` client와 떨어져 있는 `adb` 서버를 연결해야 합니다.  (디바이스와 클라이언트가 동일한 버전의 _adb_ protocol을 사용할 경우에 제공됩니다.):
+
+```bash
+adb kill-server    # 5037의 로컬 local adb server를 중단
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# 실행 유지
+```
+
+다른 터미널에서는 :
+
+```bash
+scrcpy
+```
+
+무선 연결과 동일하게, 화질을 줄이는 것이 나을 수 있습니다:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+## Window에서의 배치
+
+### 맞춤형 window 제목
+
+기본적으로, window의 이름은 디바이스의 모델명 입니다.
+다음의 명령어를 통해 변경하세요.
+
+```bash
+scrcpy --window-title 'My device'
+```
+
+
+### 배치와 크기
+
+초기 window창의 배치와 크기는 다음과 같이 설정할 수 있습니다:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+
+### 경계 없애기
+
+윈도우 장식(경계선 등)을 다음과 같이 제거할 수 있습니다:
+
+```bash
+scrcpy --window-borderless
+```
+
+### 항상 모든 윈도우 위에 실행창 고정
+
+이 어플리케이션의 윈도우 창은 다음의 명령어로 다른 window 위에 디스플레이 할 수 있습니다:
+
+```bash
+scrcpy --always-on-top
+scrcpy -T  # 축약 버전
+```
+
+### 전체 화면
+
+이 어플리케이션은 전체화면으로 바로 시작할 수 있습니다.
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # short version
+```
+
+전체 화면은  `Ctrl`+`f`키로 끄거나 켤 수 있습니다.
+
+
+## 다른 미러링 옵션
+
+### 읽기 전용(Read-only)
+
+권한을 제한하기 위해서는 (디바이스와 관련된 모든 것: 입력 키, 마우스 이벤트 , 파일의 드래그 앤 드랍(drag&drop)):
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+### 화면 끄기
+
+미러링을 실행하는 와중에 디바이스의 화면을 끌 수 있게 하기 위해서는
+다음의 커맨드 라인 옵션을(command line option) 입력하세요:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+혹은 `Ctrl`+`o`을 눌러 언제든지 디바이스의 화면을 끌 수 있습니다.
+
+다시 화면을 켜기 위해서는`POWER` (혹은 `Ctrl`+`p`)를 누르세요.
+
+
+### 유효기간이 지난 프레임 제공 (Render expired frames)
+
+디폴트로, 대기시간을 최소화하기 위해 _scrcpy_ 는 항상 마지막으로 디코딩된 프레임을 제공합니다
+과거의 프레임은 하나씩 삭제합니다.
+
+모든 프레임을 강제로 렌더링하기 위해서는 (대기 시간이 증가될 수 있습니다)
+다음의 명령어를 사용하세요:
+
+```bash
+scrcpy --render-expired-frames
+```
+
+
+### 화면에 터치 나타내기
+
+발표를 할 때, 물리적인 기기에 한 물리적 터치를 나타내는 것이 유용할 수 있습니다.
+
+안드로이드 운영체제는 이런 기능을 _Developers options_에서 제공합니다.
+
+_Scrcpy_ 는 이런 기능을 시작할 때와 종료할 때 옵션으로 제공합니다.
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+화면에 _물리적인 터치만_ 나타나는 것에 유의하세요 (손가락을 디바이스에 대는 행위).
+
+
+### 입력 제어
+
+#### 복사-붙여넣기
+
+컴퓨터와 디바이스 양방향으로 클립보드를 복사하는 것이 가능합니다:
+
+ - `Ctrl`+`c` 디바이스의 클립보드를 컴퓨터로 복사합니다;
+ - `Ctrl`+`Shift`+`v` 컴퓨터의 클립보드를 디바이스로 복사합니다;
+ - `Ctrl`+`v` 컴퓨터의 클립보드를 text event 로써 _붙여넣습니다_  ( 그러나, ASCII 코드가 아닌 경우 실행되지 않습니다 )
+
+#### 텍스트 삽입 우선 순위
+
+텍스트를 입력할 때 생성되는 두 가지의 [events][textevents] 가 있습니다:
+ - _key events_, 키가 눌려있는 지에 대한 신호;
+ - _text events_, 텍스트가 입력되었는지에 대한 신호.
+
+기본적으로, 글자들은 key event 를 이용해 입력되기 때문에, 키보드는 게임에서처럼 처리합니다 ( 보통 WASD 키에 대해서 ).
+
+그러나 이는 [issues 를 발생][prefertext]시킵니다. 이와 관련된 문제를 접할 경우, 아래와 같이 피할 수 있습니다:
+
+```bash
+scrcpy --prefer-text
+```
+
+( 그러나 이는 게임에서의 처리를 중단할 수 있습니다 )
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+### 파일 드랍
+
+### APK 실행하기
+
+APK를 실행하기 위해서는, APK file(파일명이`.apk`로 끝나는 파일)을  드래그하고 _scrcpy_ window에 드랍하세요 (drag and drop)
+
+시각적인 피드백은 없고,log 하나가 콘솔에 출력될 것입니다.
+
+### 디바이스에 파일 push하기
+
+디바이스의`/sdcard/`에 파일을 push하기 위해서는,
+APK파일이 아닌 파일을_scrcpy_ window에 드래그하고 드랍하세요.(drag and drop).
+
+시각적인 피드백은 없고,log 하나가 콘솔에 출력될 것입니다.
+
+해당 디렉토리는 시작할 때 변경이 가능합니다:
+
+```bash
+scrcpy --push-target /sdcard/foo/bar/
+```
+
+### 오디오의 전달
+
+_scrcpy_는 오디오를 직접 전달해주지 않습니다. [USBaudio] (Linux-only)를 사용하세요.
+
+추가적으로 [issue #14]를 참고하세요.
+
+[USBaudio]: https://github.com/rom1v/usbaudio
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+## 단축키
+
+ | 실행내용                                |   단축키                       |   단축키 (macOS)
+ | -------------------------------------- |:----------------------------- |:-----------------------------
+ | 전체화면 모드로 전환                      | `Ctrl`+`f`                    | `Cmd`+`f`
+ | window를 1:1비율로 전환하기(픽셀 맞춤)   | `Ctrl`+`g`                    | `Cmd`+`g`
+ | 검은 공백 제거 위한 window 크기 조정  | `Ctrl`+`x` \| _Double-click¹_ | `Cmd`+`x`  \| _Double-click¹_
+ |`HOME` 클릭                        | `Ctrl`+`h` \| _Middle-click_  | `Ctrl`+`h` \| _Middle-click_
+ | `BACK` 클릭                      | `Ctrl`+`b` \| _Right-click²_  | `Cmd`+`b`  \| _Right-click²_
+ | `APP_SWITCH` 클릭                 | `Ctrl`+`s`                    | `Cmd`+`s`
+ | `MENU` 클릭                       | `Ctrl`+`m`                    | `Ctrl`+`m`
+ | `VOLUME_UP` 클릭                   | `Ctrl`+`↑` _(up)_             | `Cmd`+`↑` _(up)_
+ | `VOLUME_DOWN` 클릭                | `Ctrl`+`↓` _(down)_           | `Cmd`+`↓` _(down)_
+ | `POWER` 클릭                      | `Ctrl`+`p`                    | `Cmd`+`p`
+ | 전원 켜기                               | _Right-click²_                | _Right-click²_
+ | 미러링 중 디바이스 화면 끄기    | `Ctrl`+`o`                    | `Cmd`+`o`
+ | 알림 패널 늘리기               | `Ctrl`+`n`                    | `Cmd`+`n`
+ | 알림 패널 닫기            | `Ctrl`+`Shift`+`n`            | `Cmd`+`Shift`+`n`
+ | 디바이스의 clipboard 컴퓨터로 복사하기      | `Ctrl`+`c`                    | `Cmd`+`c`
+ | 컴퓨터의 clipboard 디바이스에 붙여넣기     | `Ctrl`+`v`                    | `Cmd`+`v`
+ | Copy computer clipboard to device      | `Ctrl`+`Shift`+`v`            | `Cmd`+`Shift`+`v`
+ | Enable/disable FPS counter (on stdout) | `Ctrl`+`i`                    | `Cmd`+`i`
+
+_¹검은 공백을 제거하기 위해서는 그 부분을 더블 클릭하세요_
+_²화면이 꺼진 상태에서 우클릭 시 다시 켜지며, 그 외의 상태에서는 뒤로 돌아갑니다.
+
+## 맞춤 경로 (custom path)
+
+특정한 _adb_ binary를 사용하기 위해서는, 그것의 경로를 환경변수로 설정하세요.
+`ADB`:
+
+    ADB=/path/to/adb scrcpy
+
+`scrcpy-server.jar`파일의 경로에 오버라이드 하기 위해서는, 그것의 경로를 `SCRCPY_SERVER_PATH`에 저장하세요.
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+
+## _scrcpy_ 인 이유?
+
+한 동료가 [gnirehtet]와 같이 발음하기 어려운 이름을 찾을 수 있는지 도발했습니다.
+
+[`strcpy`] 는 **str**ing을 copy하고; `scrcpy`는 **scr**een을 copy합니다.
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+
+## 빌드하는 방법?
+
+[BUILD]을 참고하세요.
+
+[BUILD]: BUILD.md
+
+## 흔한 issue
+
+[FAQ](FAQ.md)을 참고하세요.
+
+
+## 개발자들
+
+[developers page]를 참고하세요.
+
+[developers page]: DEVELOP.md
+
+
+## 라이선스
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2019 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## 관련 글 (articles)
+
+- [scrcpy 소개][article-intro]
+- [무선으로 연결하는 Scrcpy][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/
--- a/README.md
+++ b/README.md
@ -1,4 +1,4 @@
-# scrcpy (v1.11)
+# scrcpy (v1.12.1)

 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.
@ -62,13 +62,13 @@ For Gentoo, an [Ebuild] is available: [`scrcpy/`][ebuild-link].
 For Windows, for simplicity, prebuilt archives with all the dependencies
 (including `adb`) are available:

- - [`scrcpy-win32-v1.11.zip`][direct-win32]  
-   _(SHA-256: f25ed46e6f3e81e0ff9b9b4df7fe1a4bbd13f8396b7391be0a488b64c675b41e)_
- - [`scrcpy-win64-v1.11.zip`][direct-win64]  
-   _(SHA-256: 3802c9ea0307d437947ff150ec65e53990b0beaacd0c8d0bed19c7650ce141bd)_
+ - [`scrcpy-win32-v1.12.1.zip`][direct-win32]  
+   _(SHA-256: 0f4b3b063536b50a2df05dc42c760f9cc0093a9a26dbdf02d8232c74dab43480)_
+ - [`scrcpy-win64-v1.12.1.zip`][direct-win64]  
+   _(SHA-256: 57d34b6d16cfd9fe169bc37c4df58ebd256d05c1ea3febc63d9cb0a027ab47c9)_

-[direct-win32]: https://github.com/Genymobile/scrcpy/releases/download/v1.11/scrcpy-win32-v1.11.zip
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.11/scrcpy-win64-v1.11.zip
+[direct-win32]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-win32-v1.12.1.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-win64-v1.12.1.zip

 You can also [build the app manually][BUILD].

@ -137,12 +137,14 @@ scrcpy -b 2M  # short version

 #### Limit frame rate

-On devices with Android >= 10, the capture frame rate can be limited:
+The capture frame rate can be limited:

 ```bash
 scrcpy --max-fps 15
 ```

+This is officially supported since Android 10, but may work on earlier versions.
+
 #### Crop

 The device screen may be cropped to mirror only part of the screen.
@ -343,6 +345,13 @@ Note that it only shows _physical_ touches (with the finger on the device).

 ### Input control

+#### Rotate device screen
+
+Press `Ctrl`+`r` to switch between portrait and landscape modes.
+
+Note that it rotates only if the application in foreground supports the
+requested orientation.
+
 #### Copy-paste

 It is possible to synchronize clipboards between the computer and the device, in
--- a/app/meson.build
+++ b/app/meson.build
@ -1,5 +1,6 @@
 src = [
    'src/main.c',
+    'src/cli.c',
    'src/command.c',
    'src/control_msg.c',
    'src/controller.c',
@ -75,11 +76,9 @@ cc = meson.get_compiler('c')

 if host_machine.system() == 'windows'
    src += [ 'src/sys/win/command.c' ]
-    src += [ 'src/sys/win/net.c' ]
    dependencies += cc.find_library('ws2_32')
 else
    src += [ 'src/sys/unix/command.c' ]
-    src += [ 'src/sys/unix/net.c' ]
 endif

 conf = configuration_data()
@ -97,9 +96,10 @@ conf.set_quoted('PREFIX', get_option('prefix'))
 # directory as the executable)
 conf.set('PORTABLE', get_option('portable'))

-# the default client TCP port for the "adb reverse" tunnel
+# the default client TCP port range for the "adb reverse" tunnel
 # overridden by option --port
-conf.set('DEFAULT_LOCAL_PORT', '27183')
+conf.set('DEFAULT_LOCAL_PORT_RANGE_FIRST', '27183')
+conf.set('DEFAULT_LOCAL_PORT_RANGE_LAST', '27199')

 # the default max video size for both dimensions, in pixels
 # overridden by option --max-size
@ -140,34 +140,43 @@ install_man('scrcpy.1')

 ### TESTS

-tests = [
-    ['test_buffer_util', [
-        'tests/test_buffer_util.c'
-    ]],
-    ['test_cbuf', [
-        'tests/test_cbuf.c',
-    ]],
-    ['test_control_event_serialize', [
-        'tests/test_control_msg_serialize.c',
-        'src/control_msg.c',
-        'src/util/str_util.c'
-    ]],
-    ['test_device_event_deserialize', [
-        'tests/test_device_msg_deserialize.c',
-        'src/device_msg.c'
-    ]],
-    ['test_queue', [
-        'tests/test_queue.c',
-    ]],
-    ['test_strutil', [
-        'tests/test_strutil.c',
-        'src/util/str_util.c'
-    ]],
-]
+# do not build tests in release (assertions would not be executed at all)
+if get_option('buildtype') == 'debug'
+    tests = [
+        ['test_buffer_util', [
+            'tests/test_buffer_util.c'
+        ]],
+        ['test_cbuf', [
+            'tests/test_cbuf.c',
+        ]],
+        ['test_cli', [
+            'tests/test_cli.c',
+            'src/cli.c',
+            'src/util/str_util.c',
+        ]],
+        ['test_control_event_serialize', [
+            'tests/test_control_msg_serialize.c',
+            'src/control_msg.c',
+            'src/util/str_util.c',
+        ]],
+        ['test_device_event_deserialize', [
+            'tests/test_device_msg_deserialize.c',
+            'src/device_msg.c',
+        ]],
+        ['test_queue', [
+            'tests/test_queue.c',
+        ]],
+        ['test_strutil', [
+            'tests/test_strutil.c',
+            'src/util/str_util.c',
+        ]],
+    ]

-foreach t : tests
-    exe = executable(t[0], t[1],
-                     include_directories: src_dir,
-                     dependencies: dependencies)
-    test(t[0], exe)
-endforeach
+    foreach t : tests
+        exe = executable(t[0], t[1],
+                         include_directories: src_dir,
+                         dependencies: dependencies,
+                         c_args: ['-DSDL_MAIN_HANDLED'])
+        test(t[0], exe)
+    endforeach
+endif
--- a/app/scrcpy.1
+++ b/app/scrcpy.1
@ -26,7 +26,7 @@ Encode the video at the given bit\-rate, expressed in bits/s. Unit suffixes are
 Default is 8000000.

 .TP
-.BI \-\-crop " width\fR:\fIheight\fR:\fIx\fR:\fIy
+.BI "\-\-crop " width\fR:\fIheight\fR:\fIx\fR:\fIy
 Crop the device screen on the server.

 The values are expressed in the device natural orientation (typically, portrait for a phone, landscape for a tablet). Any
@ -42,8 +42,8 @@ Start in fullscreen.
 Print this help.

 .TP
-.BI \-\-max\-fps " value
-Limit the framerate of screen capture (only supported on devices with Android >= 10).
+.BI "\-\-max\-fps " value
+Limit the framerate of screen capture (officially supported since Android 10, but may work on earlier versions).

 .TP
 .BI "\-m, \-\-max\-size " value
@ -60,10 +60,10 @@ Disable device control (mirror the device in read\-only).
 Do not display device (only when screen recording is enabled).

 .TP
-.BI "\-p, \-\-port " port
-Set the TCP port the client listens on.
+.BI "\-p, \-\-port " port[:port]
+Set the TCP port (range) used by the client to listen.

-Default is 27183.
+Default is 27183:27199.

 .TP
 .B \-\-prefer\-text
@ -88,7 +88,7 @@ The format is determined by the
 option if set, or by the file extension (.mp4 or .mkv).

 .TP
-.BI \-\-record\-format " format
+.BI "\-\-record\-format " format
 Force recording format (either mp4 or mkv).

 .TP
@ -118,29 +118,29 @@ Print the version of scrcpy.
 Disable window decorations (display borderless window).

 .TP
-.BI \-\-window\-title " text
+.BI "\-\-window\-title " text
 Set a custom window title.

 .TP
-.BI \-\-window\-x " value
+.BI "\-\-window\-x " value
 Set the initial window horizontal position.

 Default is -1 (automatic).\n

 .TP
-.BI \-\-window\-y " value
+.BI "\-\-window\-y " value
 Set the initial window vertical position.

 Default is -1 (automatic).\n

 .TP
-.BI \-\-window\-width " value
+.BI "\-\-window\-width " value
 Set the initial window width.

 Default is 0 (automatic).\n

 .TP
-.BI \-\-window\-height " value
+.BI "\-\-window\-height " value
 Set the initial window height.

 Default is 0 (automatic).\n
--- a/app/src/cli.c
+++ b/app/src/cli.c
@ -0,0 +1,566 @@
+#include "cli.h"
+
+#include <getopt.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include "config.h"
+#include "recorder.h"
+#include "util/log.h"
+#include "util/str_util.h"
+
+void
+scrcpy_print_usage(const char *arg0) {
+#ifdef __APPLE__
+# define CTRL_OR_CMD "Cmd"
+#else
+# define CTRL_OR_CMD "Ctrl"
+#endif
+    fprintf(stderr,
+        "Usage: %s [options]\n"
+        "\n"
+        "Options:\n"
+        "\n"
+        "    --always-on-top\n"
+        "        Make scrcpy window always on top (above other windows).\n"
+        "\n"
+        "    -b, --bit-rate value\n"
+        "        Encode the video at the given bit-rate, expressed in bits/s.\n"
+        "        Unit suffixes are supported: 'K' (x1000) and 'M' (x1000000).\n"
+        "        Default is %d.\n"
+        "\n"
+        "    --crop width:height:x:y\n"
+        "        Crop the device screen on the server.\n"
+        "        The values are expressed in the device natural orientation\n"
+        "        (typically, portrait for a phone, landscape for a tablet).\n"
+        "        Any --max-size value is computed on the cropped size.\n"
+        "\n"
+        "    -f, --fullscreen\n"
+        "        Start in fullscreen.\n"
+        "\n"
+        "    -h, --help\n"
+        "        Print this help.\n"
+        "\n"
+        "    --max-fps value\n"
+        "        Limit the frame rate of screen capture (officially supported\n"
+        "        since Android 10, but may work on earlier versions).\n"
+        "\n"
+        "    -m, --max-size value\n"
+        "        Limit both the width and height of the video to value. The\n"
+        "        other dimension is computed so that the device aspect-ratio\n"
+        "        is preserved.\n"
+        "        Default is %d%s.\n"
+        "\n"
+        "    -n, --no-control\n"
+        "        Disable device control (mirror the device in read-only).\n"
+        "\n"
+        "    -N, --no-display\n"
+        "        Do not display device (only when screen recording is\n"
+        "        enabled).\n"
+        "\n"
+        "    -p, --port port[:port]\n"
+        "        Set the TCP port (range) used by the client to listen.\n"
+        "        Default is %d:%d.\n"
+        "\n"
+        "    --prefer-text\n"
+        "        Inject alpha characters and space as text events instead of\n"
+        "        key events.\n"
+        "        This avoids issues when combining multiple keys to enter a\n"
+        "        special character, but breaks the expected behavior of alpha\n"
+        "        keys in games (typically WASD).\n"
+        "\n"
+        "    --push-target path\n"
+        "        Set the target directory for pushing files to the device by\n"
+        "        drag & drop. It is passed as-is to \"adb push\".\n"
+        "        Default is \"/sdcard/\".\n"
+        "\n"
+        "    -r, --record file.mp4\n"
+        "        Record screen to file.\n"
+        "        The format is determined by the --record-format option if\n"
+        "        set, or by the file extension (.mp4 or .mkv).\n"
+        "\n"
+        "    --record-format format\n"
+        "        Force recording format (either mp4 or mkv).\n"
+        "\n"
+        "    --render-expired-frames\n"
+        "        By default, to minimize latency, scrcpy always renders the\n"
+        "        last available decoded frame, and drops any previous ones.\n"
+        "        This flag forces to render all frames, at a cost of a\n"
+        "        possible increased latency.\n"
+        "\n"
+        "    -s, --serial serial\n"
+        "        The device serial number. Mandatory only if several devices\n"
+        "        are connected to adb.\n"
+        "\n"
+        "    -S, --turn-screen-off\n"
+        "        Turn the device screen off immediately.\n"
+        "\n"
+        "    -t, --show-touches\n"
+        "        Enable \"show touches\" on start, disable on quit.\n"
+        "        It only shows physical touches (not clicks from scrcpy).\n"
+        "\n"
+        "    -v, --version\n"
+        "        Print the version of scrcpy.\n"
+        "\n"
+        "    --window-borderless\n"
+        "        Disable window decorations (display borderless window).\n"
+        "\n"
+        "    --window-title text\n"
+        "        Set a custom window title.\n"
+        "\n"
+        "    --window-x value\n"
+        "        Set the initial window horizontal position.\n"
+        "        Default is -1 (automatic).\n"
+        "\n"
+        "    --window-y value\n"
+        "        Set the initial window vertical position.\n"
+        "        Default is -1 (automatic).\n"
+        "\n"
+        "    --window-width value\n"
+        "        Set the initial window width.\n"
+        "        Default is 0 (automatic).\n"
+        "\n"
+        "    --window-height value\n"
+        "        Set the initial window width.\n"
+        "        Default is 0 (automatic).\n"
+        "\n"
+        "Shortcuts:\n"
+        "\n"
+        "    " CTRL_OR_CMD "+f\n"
+        "        switch fullscreen mode\n"
+        "\n"
+        "    " CTRL_OR_CMD "+g\n"
+        "        resize window to 1:1 (pixel-perfect)\n"
+        "\n"
+        "    " CTRL_OR_CMD "+x\n"
+        "    Double-click on black borders\n"
+        "        resize window to remove black borders\n"
+        "\n"
+        "    Ctrl+h\n"
+        "    Middle-click\n"
+        "        click on HOME\n"
+        "\n"
+        "    " CTRL_OR_CMD "+b\n"
+        "    " CTRL_OR_CMD "+Backspace\n"
+        "    Right-click (when screen is on)\n"
+        "        click on BACK\n"
+        "\n"
+        "    " CTRL_OR_CMD "+s\n"
+        "        click on APP_SWITCH\n"
+        "\n"
+        "    Ctrl+m\n"
+        "        click on MENU\n"
+        "\n"
+        "    " CTRL_OR_CMD "+Up\n"
+        "        click on VOLUME_UP\n"
+        "\n"
+        "    " CTRL_OR_CMD "+Down\n"
+        "        click on VOLUME_DOWN\n"
+        "\n"
+        "    " CTRL_OR_CMD "+p\n"
+        "        click on POWER (turn screen on/off)\n"
+        "\n"
+        "    Right-click (when screen is off)\n"
+        "        power on\n"
+        "\n"
+        "    " CTRL_OR_CMD "+o\n"
+        "        turn device screen off (keep mirroring)\n"
+        "\n"
+        "    " CTRL_OR_CMD "+r\n"
+        "        rotate device screen\n"
+        "\n"
+        "    " CTRL_OR_CMD "+n\n"
+        "       expand notification panel\n"
+        "\n"
+        "    " CTRL_OR_CMD "+Shift+n\n"
+        "       collapse notification panel\n"
+        "\n"
+        "    " CTRL_OR_CMD "+c\n"
+        "        copy device clipboard to computer\n"
+        "\n"
+        "    " CTRL_OR_CMD "+v\n"
+        "        paste computer clipboard to device\n"
+        "\n"
+        "    " CTRL_OR_CMD "+Shift+v\n"
+        "        copy computer clipboard to device\n"
+        "\n"
+        "    " CTRL_OR_CMD "+i\n"
+        "        enable/disable FPS counter (print frames/second in logs)\n"
+        "\n"
+        "    Drag & drop APK file\n"
+        "        install APK from computer\n"
+        "\n",
+        arg0,
+        DEFAULT_BIT_RATE,
+        DEFAULT_MAX_SIZE, DEFAULT_MAX_SIZE ? "" : " (unlimited)",
+        DEFAULT_LOCAL_PORT_RANGE_FIRST, DEFAULT_LOCAL_PORT_RANGE_LAST);
+}
+
+static bool
+parse_integer_arg(const char *s, long *out, bool accept_suffix, long min,
+                  long max, const char *name) {
+    long value;
+    bool ok;
+    if (accept_suffix) {
+        ok = parse_integer_with_suffix(s, &value);
+    } else {
+        ok = parse_integer(s, &value);
+    }
+    if (!ok) {
+        LOGE("Could not parse %s: %s", name, s);
+        return false;
+    }
+
+    if (value < min || value > max) {
+        LOGE("Could not parse %s: value (%ld) out-of-range (%ld; %ld)",
+             name, value, min, max);
+        return false;
+    }
+
+    *out = value;
+    return true;
+}
+
+static size_t
+parse_integers_arg(const char *s, size_t max_items, long *out, long min,
+                   long max, const char *name) {
+    size_t count = parse_integers(s, ':', max_items, out);
+    if (!count) {
+        LOGE("Could not parse %s: %s", name, s);
+        return 0;
+    }
+
+    for (size_t i = 0; i < count; ++i) {
+        long value = out[i];
+        if (value < min || value > max) {
+            LOGE("Could not parse %s: value (%ld) out-of-range (%ld; %ld)",
+                 name, value, min, max);
+            return 0;
+        }
+    }
+
+    return count;
+}
+
+static bool
+parse_bit_rate(const char *s, uint32_t *bit_rate) {
+    long value;
+    // long may be 32 bits (it is the case on mingw), so do not use more than
+    // 31 bits (long is signed)
+    bool ok = parse_integer_arg(s, &value, true, 0, 0x7FFFFFFF, "bit-rate");
+    if (!ok) {
+        return false;
+    }
+
+    *bit_rate = (uint32_t) value;
+    return true;
+}
+
+static bool
+parse_max_size(const char *s, uint16_t *max_size) {
+    long value;
+    bool ok = parse_integer_arg(s, &value, false, 0, 0xFFFF, "max size");
+    if (!ok) {
+        return false;
+    }
+
+    *max_size = (uint16_t) value;
+    return true;
+}
+
+static bool
+parse_max_fps(const char *s, uint16_t *max_fps) {
+    long value;
+    bool ok = parse_integer_arg(s, &value, false, 0, 1000, "max fps");
+    if (!ok) {
+        return false;
+    }
+
+    *max_fps = (uint16_t) value;
+    return true;
+}
+
+static bool
+parse_window_position(const char *s, int16_t *position) {
+    long value;
+    bool ok = parse_integer_arg(s, &value, false, -1, 0x7FFF,
+                                "window position");
+    if (!ok) {
+        return false;
+    }
+
+    *position = (int16_t) value;
+    return true;
+}
+
+static bool
+parse_window_dimension(const char *s, uint16_t *dimension) {
+    long value;
+    bool ok = parse_integer_arg(s, &value, false, 0, 0xFFFF,
+                                "window dimension");
+    if (!ok) {
+        return false;
+    }
+
+    *dimension = (uint16_t) value;
+    return true;
+}
+
+static bool
+parse_port_range(const char *s, struct port_range *port_range) {
+    long values[2];
+    size_t count = parse_integers_arg(s, 2, values, 0, 0xFFFF, "port");
+    if (!count) {
+        return false;
+    }
+
+    uint16_t v0 = (uint16_t) values[0];
+    if (count == 1) {
+        port_range->first = v0;
+        port_range->last = v0;
+        return true;
+    }
+
+    assert(count == 2);
+    uint16_t v1 = (uint16_t) values[1];
+    if (v0 < v1) {
+        port_range->first = v0;
+        port_range->last = v1;
+    } else {
+        port_range->first = v1;
+        port_range->last = v0;
+    }
+
+    return true;
+}
+
+static bool
+parse_record_format(const char *optarg, enum recorder_format *format) {
+    if (!strcmp(optarg, "mp4")) {
+        *format = RECORDER_FORMAT_MP4;
+        return true;
+    }
+    if (!strcmp(optarg, "mkv")) {
+        *format = RECORDER_FORMAT_MKV;
+        return true;
+    }
+    LOGE("Unsupported format: %s (expected mp4 or mkv)", optarg);
+    return false;
+}
+
+static enum recorder_format
+guess_record_format(const char *filename) {
+    size_t len = strlen(filename);
+    if (len < 4) {
+        return 0;
+    }
+    const char *ext = &filename[len - 4];
+    if (!strcmp(ext, ".mp4")) {
+        return RECORDER_FORMAT_MP4;
+    }
+    if (!strcmp(ext, ".mkv")) {
+        return RECORDER_FORMAT_MKV;
+    }
+    return 0;
+}
+
+#define OPT_RENDER_EXPIRED_FRAMES 1000
+#define OPT_WINDOW_TITLE          1001
+#define OPT_PUSH_TARGET           1002
+#define OPT_ALWAYS_ON_TOP         1003
+#define OPT_CROP                  1004
+#define OPT_RECORD_FORMAT         1005
+#define OPT_PREFER_TEXT           1006
+#define OPT_WINDOW_X              1007
+#define OPT_WINDOW_Y              1008
+#define OPT_WINDOW_WIDTH          1009
+#define OPT_WINDOW_HEIGHT         1010
+#define OPT_WINDOW_BORDERLESS     1011
+#define OPT_MAX_FPS               1012
+
+bool
+scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
+    static const struct option long_options[] = {
+        {"always-on-top",         no_argument,       NULL, OPT_ALWAYS_ON_TOP},
+        {"bit-rate",              required_argument, NULL, 'b'},
+        {"crop",                  required_argument, NULL, OPT_CROP},
+        {"fullscreen",            no_argument,       NULL, 'f'},
+        {"help",                  no_argument,       NULL, 'h'},
+        {"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'},
+        {"port",                  required_argument, NULL, 'p'},
+        {"push-target",           required_argument, NULL, OPT_PUSH_TARGET},
+        {"record",                required_argument, NULL, 'r'},
+        {"record-format",         required_argument, NULL, OPT_RECORD_FORMAT},
+        {"render-expired-frames", no_argument,       NULL,
+                                                     OPT_RENDER_EXPIRED_FRAMES},
+        {"serial",                required_argument, NULL, 's'},
+        {"show-touches",          no_argument,       NULL, 't'},
+        {"turn-screen-off",       no_argument,       NULL, 'S'},
+        {"prefer-text",           no_argument,       NULL, OPT_PREFER_TEXT},
+        {"version",               no_argument,       NULL, 'v'},
+        {"window-title",          required_argument, NULL, OPT_WINDOW_TITLE},
+        {"window-x",              required_argument, NULL, OPT_WINDOW_X},
+        {"window-y",              required_argument, NULL, OPT_WINDOW_Y},
+        {"window-width",          required_argument, NULL, OPT_WINDOW_WIDTH},
+        {"window-height",         required_argument, NULL, OPT_WINDOW_HEIGHT},
+        {"window-borderless",     no_argument,       NULL,
+                                                     OPT_WINDOW_BORDERLESS},
+        {NULL,                    0,                 NULL, 0  },
+    };
+
+    struct scrcpy_options *opts = &args->opts;
+
+    optind = 0; // reset to start from the first argument in tests
+
+    int c;
+    while ((c = getopt_long(argc, argv, "b:c:fF:hm:nNp:r:s:StTv", long_options,
+                            NULL)) != -1) {
+        switch (c) {
+            case 'b':
+                if (!parse_bit_rate(optarg, &opts->bit_rate)) {
+                    return false;
+                }
+                break;
+            case 'c':
+                LOGW("Deprecated option -c. Use --crop instead.");
+                // fall through
+            case OPT_CROP:
+                opts->crop = optarg;
+                break;
+            case 'f':
+                opts->fullscreen = true;
+                break;
+            case 'F':
+                LOGW("Deprecated option -F. Use --record-format instead.");
+                // fall through
+            case OPT_RECORD_FORMAT:
+                if (!parse_record_format(optarg, &opts->record_format)) {
+                    return false;
+                }
+                break;
+            case 'h':
+                args->help = true;
+                break;
+            case OPT_MAX_FPS:
+                if (!parse_max_fps(optarg, &opts->max_fps)) {
+                    return false;
+                }
+                break;
+            case 'm':
+                if (!parse_max_size(optarg, &opts->max_size)) {
+                    return false;
+                }
+                break;
+            case 'n':
+                opts->control = false;
+                break;
+            case 'N':
+                opts->display = false;
+                break;
+            case 'p':
+                if (!parse_port_range(optarg, &opts->port_range)) {
+                    return false;
+                }
+                break;
+            case 'r':
+                opts->record_filename = optarg;
+                break;
+            case 's':
+                opts->serial = optarg;
+                break;
+            case 'S':
+                opts->turn_screen_off = true;
+                break;
+            case 't':
+                opts->show_touches = true;
+                break;
+            case 'T':
+                LOGW("Deprecated option -T. Use --always-on-top instead.");
+                // fall through
+            case OPT_ALWAYS_ON_TOP:
+                opts->always_on_top = true;
+                break;
+            case 'v':
+                args->version = true;
+                break;
+            case OPT_RENDER_EXPIRED_FRAMES:
+                opts->render_expired_frames = true;
+                break;
+            case OPT_WINDOW_TITLE:
+                opts->window_title = optarg;
+                break;
+            case OPT_WINDOW_X:
+                if (!parse_window_position(optarg, &opts->window_x)) {
+                    return false;
+                }
+                break;
+            case OPT_WINDOW_Y:
+                if (!parse_window_position(optarg, &opts->window_y)) {
+                    return false;
+                }
+                break;
+            case OPT_WINDOW_WIDTH:
+                if (!parse_window_dimension(optarg, &opts->window_width)) {
+                    return false;
+                }
+                break;
+            case OPT_WINDOW_HEIGHT:
+                if (!parse_window_dimension(optarg, &opts->window_height)) {
+                    return false;
+                }
+                break;
+            case OPT_WINDOW_BORDERLESS:
+                opts->window_borderless = true;
+                break;
+            case OPT_PUSH_TARGET:
+                opts->push_target = optarg;
+                break;
+            case OPT_PREFER_TEXT:
+                opts->prefer_text = true;
+                break;
+            default:
+                // getopt prints the error message on stderr
+                return false;
+        }
+    }
+
+    if (!opts->display && !opts->record_filename) {
+        LOGE("-N/--no-display requires screen recording (-r/--record)");
+        return false;
+    }
+
+    if (!opts->display && opts->fullscreen) {
+        LOGE("-f/--fullscreen-window is incompatible with -N/--no-display");
+        return false;
+    }
+
+    int index = optind;
+    if (index < argc) {
+        LOGE("Unexpected additional argument: %s", argv[index]);
+        return false;
+    }
+
+    if (opts->record_format && !opts->record_filename) {
+        LOGE("Record format specified without recording");
+        return false;
+    }
+
+    if (opts->record_filename && !opts->record_format) {
+        opts->record_format = guess_record_format(opts->record_filename);
+        if (!opts->record_format) {
+            LOGE("No format specified for \"%s\" (try with -F mkv)",
+                 opts->record_filename);
+            return false;
+        }
+    }
+
+    if (!opts->control && opts->turn_screen_off) {
+        LOGE("Could not request to turn screen off if control is disabled");
+        return false;
+    }
+
+    return true;
+}
--- a/app/src/cli.h
+++ b/app/src/cli.h
@ -0,0 +1,21 @@
+#ifndef SCRCPY_CLI_H
+#define SCRCPY_CLI_H
+
+#include <stdbool.h>
+
+#include "config.h"
+#include "scrcpy.h"
+
+struct scrcpy_cli_args {
+    struct scrcpy_options opts;
+    bool help;
+    bool version;
+};
+
+void
+scrcpy_print_usage(const char *arg0);
+
+bool
+scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]);
+
+#endif
--- a/app/src/command.c
+++ b/app/src/command.c
@ -55,6 +55,28 @@ argv_to_string(const char *const *argv, char *buf, size_t bufsize) {
    return idx;
 }

+static void
+show_adb_installation_msg() {
+    static const struct {
+        const char *binary;
+        const char *command;
+    } pkg_managers[] = {
+        {"apt", "apt install adb"},
+        {"apt-get", "apt-get install adb"},
+        {"brew", "brew install android-platform-tools"},
+        {"dnf", "dnf install android-tools"},
+    };
+    for (size_t i = 0; i < ARRAY_LEN(pkg_managers); ++i) {
+        if (cmd_search(pkg_managers[i].binary)) {
+            LOGI("You may install 'adb' by \"%s\"", pkg_managers[i].command);
+            return;
+        }
+    }
+
+    LOGI("You may download and install 'adb' from "
+         "https://developer.android.com/studio/releases/platform-tools");
+}
+
 static void
 show_adb_err_msg(enum process_result err, const char *const argv[]) {
    char buf[512];
@ -68,6 +90,7 @@ show_adb_err_msg(enum process_result err, const char *const argv[]) {
            LOGE("Command not found: %s", buf);
            LOGE("(make 'adb' accessible from your PATH or define its full"
                 "path in the ADB environment variable)");
+            show_adb_installation_msg();
            break;
        case PROCESS_SUCCESS:
            // do nothing
--- a/app/src/command.h
+++ b/app/src/command.h
@ -43,6 +43,9 @@ enum process_result {
    PROCESS_ERROR_MISSING_BINARY,
 };

+bool
+cmd_search(const char *file);
+
 enum process_result
 cmd_execute(const char *const argv[], process_t *process);

@ -85,4 +88,8 @@ process_check_success(process_t proc, const char *name);
 char *
 get_executable_path(void);

+// returns true if the file exists and is not a directory
+bool
+is_regular_file(const char *path);
+
 #endif
--- a/app/src/common.h
+++ b/app/src/common.h
@ -27,4 +27,9 @@ struct position {
    struct point point;
 };

+struct port_range {
+    uint16_t first;
+    uint16_t last;
+};
+
 #endif
--- a/app/src/main.c
+++ b/app/src/main.c
@ -1,210 +1,16 @@
 #include "scrcpy.h"

-#include <getopt.h>
 #include <stdbool.h>
-#include <stdint.h>
 #include <unistd.h>
 #include <libavformat/avformat.h>
 #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 "recorder.h"
 #include "util/log.h"

-struct args {
-    struct scrcpy_options opts;
-    bool help;
-    bool version;
-};
-
-static void usage(const char *arg0) {
-#ifdef __APPLE__
-# define CTRL_OR_CMD "Cmd"
-#else
-# define CTRL_OR_CMD "Ctrl"
-#endif
-    fprintf(stderr,
-        "Usage: %s [options]\n"
-        "\n"
-        "Options:\n"
-        "\n"
-        "    --always-on-top\n"
-        "        Make scrcpy window always on top (above other windows).\n"
-        "\n"
-        "    -b, --bit-rate value\n"
-        "        Encode the video at the given bit-rate, expressed in bits/s.\n"
-        "        Unit suffixes are supported: 'K' (x1000) and 'M' (x1000000).\n"
-        "        Default is %d.\n"
-        "\n"
-        "    --crop width:height:x:y\n"
-        "        Crop the device screen on the server.\n"
-        "        The values are expressed in the device natural orientation\n"
-        "        (typically, portrait for a phone, landscape for a tablet).\n"
-        "        Any --max-size value is computed on the cropped size.\n"
-        "\n"
-        "    -f, --fullscreen\n"
-        "        Start in fullscreen.\n"
-        "\n"
-        "    -h, --help\n"
-        "        Print this help.\n"
-        "\n"
-        "    --max-fps value\n"
-        "        Limit the frame rate of screen capture (only supported on\n"
-        "        devices with Android >= 10).\n"
-        "\n"
-        "    -m, --max-size value\n"
-        "        Limit both the width and height of the video to value. The\n"
-        "        other dimension is computed so that the device aspect-ratio\n"
-        "        is preserved.\n"
-        "        Default is %d%s.\n"
-        "\n"
-        "    -n, --no-control\n"
-        "        Disable device control (mirror the device in read-only).\n"
-        "\n"
-        "    -N, --no-display\n"
-        "        Do not display device (only when screen recording is\n"
-        "        enabled).\n"
-        "\n"
-        "    -p, --port port\n"
-        "        Set the TCP port the client listens on.\n"
-        "        Default is %d.\n"
-        "\n"
-        "    --prefer-text\n"
-        "        Inject alpha characters and space as text events instead of\n"
-        "        key events.\n"
-        "        This avoids issues when combining multiple keys to enter a\n"
-        "        special character, but breaks the expected behavior of alpha\n"
-        "        keys in games (typically WASD).\n"
-        "\n"
-        "    --push-target path\n"
-        "        Set the target directory for pushing files to the device by\n"
-        "        drag & drop. It is passed as-is to \"adb push\".\n"
-        "        Default is \"/sdcard/\".\n"
-        "\n"
-        "    -r, --record file.mp4\n"
-        "        Record screen to file.\n"
-        "        The format is determined by the --record-format option if\n"
-        "        set, or by the file extension (.mp4 or .mkv).\n"
-        "\n"
-        "    --record-format format\n"
-        "        Force recording format (either mp4 or mkv).\n"
-        "\n"
-        "    --render-expired-frames\n"
-        "        By default, to minimize latency, scrcpy always renders the\n"
-        "        last available decoded frame, and drops any previous ones.\n"
-        "        This flag forces to render all frames, at a cost of a\n"
-        "        possible increased latency.\n"
-        "\n"
-        "    -s, --serial serial\n"
-        "        The device serial number. Mandatory only if several devices\n"
-        "        are connected to adb.\n"
-        "\n"
-        "    -S, --turn-screen-off\n"
-        "        Turn the device screen off immediately.\n"
-        "\n"
-        "    -t, --show-touches\n"
-        "        Enable \"show touches\" on start, disable on quit.\n"
-        "        It only shows physical touches (not clicks from scrcpy).\n"
-        "\n"
-        "    -v, --version\n"
-        "        Print the version of scrcpy.\n"
-        "\n"
-        "    --window-borderless\n"
-        "        Disable window decorations (display borderless window).\n"
-        "\n"
-        "    --window-title text\n"
-        "        Set a custom window title.\n"
-        "\n"
-        "    --window-x value\n"
-        "        Set the initial window horizontal position.\n"
-        "        Default is -1 (automatic).\n"
-        "\n"
-        "    --window-y value\n"
-        "        Set the initial window vertical position.\n"
-        "        Default is -1 (automatic).\n"
-        "\n"
-        "    --window-width value\n"
-        "        Set the initial window width.\n"
-        "        Default is 0 (automatic).\n"
-        "\n"
-        "    --window-height value\n"
-        "        Set the initial window width.\n"
-        "        Default is 0 (automatic).\n"
-        "\n"
-        "Shortcuts:\n"
-        "\n"
-        "    " CTRL_OR_CMD "+f\n"
-        "        switch fullscreen mode\n"
-        "\n"
-        "    " CTRL_OR_CMD "+g\n"
-        "        resize window to 1:1 (pixel-perfect)\n"
-        "\n"
-        "    " CTRL_OR_CMD "+x\n"
-        "    Double-click on black borders\n"
-        "        resize window to remove black borders\n"
-        "\n"
-        "    Ctrl+h\n"
-        "    Middle-click\n"
-        "        click on HOME\n"
-        "\n"
-        "    " CTRL_OR_CMD "+b\n"
-        "    " CTRL_OR_CMD "+Backspace\n"
-        "    Right-click (when screen is on)\n"
-        "        click on BACK\n"
-        "\n"
-        "    " CTRL_OR_CMD "+s\n"
-        "        click on APP_SWITCH\n"
-        "\n"
-        "    Ctrl+m\n"
-        "        click on MENU\n"
-        "\n"
-        "    " CTRL_OR_CMD "+Up\n"
-        "        click on VOLUME_UP\n"
-        "\n"
-        "    " CTRL_OR_CMD "+Down\n"
-        "        click on VOLUME_DOWN\n"
-        "\n"
-        "    " CTRL_OR_CMD "+p\n"
-        "        click on POWER (turn screen on/off)\n"
-        "\n"
-        "    Right-click (when screen is off)\n"
-        "        power on\n"
-        "\n"
-        "    " CTRL_OR_CMD "+o\n"
-        "        turn device screen off (keep mirroring)\n"
-        "\n"
-        "    " CTRL_OR_CMD "+r\n"
-        "        rotate device screen\n"
-        "\n"
-        "    " CTRL_OR_CMD "+n\n"
-        "       expand notification panel\n"
-        "\n"
-        "    " CTRL_OR_CMD "+Shift+n\n"
-        "       collapse notification panel\n"
-        "\n"
-        "    " CTRL_OR_CMD "+c\n"
-        "        copy device clipboard to computer\n"
-        "\n"
-        "    " CTRL_OR_CMD "+v\n"
-        "        paste computer clipboard to device\n"
-        "\n"
-        "    " CTRL_OR_CMD "+Shift+v\n"
-        "        copy computer clipboard to device\n"
-        "\n"
-        "    " CTRL_OR_CMD "+i\n"
-        "        enable/disable FPS counter (print frames/second in logs)\n"
-        "\n"
-        "    Drag & drop APK file\n"
-        "        install APK from computer\n"
-        "\n",
-        arg0,
-        DEFAULT_BIT_RATE,
-        DEFAULT_MAX_SIZE, DEFAULT_MAX_SIZE ? "" : " (unlimited)",
-        DEFAULT_LOCAL_PORT);
-}
-
 static void
 print_version(void) {
    fprintf(stderr, "scrcpy %s\n\n", SCRCPY_VERSION);
@ -223,373 +29,6 @@ print_version(void) {
                                               LIBAVUTIL_VERSION_MICRO);
 }

-static bool
-parse_bit_rate(char *optarg, uint32_t *bit_rate) {
-    char *endptr;
-    if (*optarg == '\0') {
-        LOGE("Bit-rate parameter is empty");
-        return false;
-    }
-    long value = strtol(optarg, &endptr, 0);
-    int mul = 1;
-    if (*endptr != '\0') {
-        if (optarg == endptr) {
-            LOGE("Invalid bit-rate: %s", optarg);
-            return false;
-        }
-        if ((*endptr == 'M' || *endptr == 'm') && endptr[1] == '\0') {
-            mul = 1000000;
-        } else if ((*endptr == 'K' || *endptr == 'k') && endptr[1] == '\0') {
-            mul = 1000;
-        } else {
-            LOGE("Invalid bit-rate unit: %s", optarg);
-            return false;
-        }
-    }
-    if (value < 0 || ((uint32_t) -1) / mul < (unsigned long) value) {
-        LOGE("Bitrate must be positive and less than 2^32: %s", optarg);
-        return false;
-    }
-
-    *bit_rate = (uint32_t) value * mul;
-    return true;
-}
-
-static bool
-parse_max_size(char *optarg, uint16_t *max_size) {
-    char *endptr;
-    if (*optarg == '\0') {
-        LOGE("Max size parameter is empty");
-        return false;
-    }
-    long value = strtol(optarg, &endptr, 0);
-    if (*endptr != '\0') {
-        LOGE("Invalid max size: %s", optarg);
-        return false;
-    }
-    if (value & ~0xffff) {
-        LOGE("Max size must be between 0 and 65535: %ld", value);
-        return false;
-    }
-
-    *max_size = (uint16_t) value;
-    return true;
-}
-
-static bool
-parse_max_fps(const char *optarg, uint16_t *max_fps) {
-    char *endptr;
-    if (*optarg == '\0') {
-        LOGE("Max FPS parameter is empty");
-        return false;
-    }
-    long value = strtol(optarg, &endptr, 0);
-    if (*endptr != '\0') {
-        LOGE("Invalid max FPS: %s", optarg);
-        return false;
-    }
-    if (value & ~0xffff) {
-        // in practice, it should not be higher than 60
-        LOGE("Max FPS value is invalid: %ld", value);
-        return false;
-    }
-
-    *max_fps = (uint16_t) value;
-    return true;
-}
-
-static bool
-parse_window_position(char *optarg, int16_t *position) {
-    char *endptr;
-    if (*optarg == '\0') {
-        LOGE("Window position parameter is empty");
-        return false;
-    }
-    long value = strtol(optarg, &endptr, 0);
-    if (*endptr != '\0') {
-        LOGE("Invalid window position: %s", optarg);
-        return false;
-    }
-    if (value < -1 || value > 0x7fff) {
-        LOGE("Window position must be between -1 and 32767: %ld", value);
-        return false;
-    }
-
-    *position = (int16_t) value;
-    return true;
-}
-
-static bool
-parse_window_dimension(char *optarg, uint16_t *dimension) {
-    char *endptr;
-    if (*optarg == '\0') {
-        LOGE("Window dimension parameter is empty");
-        return false;
-    }
-    long value = strtol(optarg, &endptr, 0);
-    if (*endptr != '\0') {
-        LOGE("Invalid window dimension: %s", optarg);
-        return false;
-    }
-    if (value & ~0xffff) {
-        LOGE("Window position must be between 0 and 65535: %ld", value);
-        return false;
-    }
-
-    *dimension = (uint16_t) value;
-    return true;
-}
-
-static bool
-parse_port(char *optarg, uint16_t *port) {
-    char *endptr;
-    if (*optarg == '\0') {
-        LOGE("Port parameter is empty");
-        return false;
-    }
-    long value = strtol(optarg, &endptr, 0);
-    if (*endptr != '\0') {
-        LOGE("Invalid port: %s", optarg);
-        return false;
-    }
-    if (value & ~0xffff) {
-        LOGE("Port out of range: %ld", value);
-        return false;
-    }
-
-    *port = (uint16_t) value;
-    return true;
-}
-
-static bool
-parse_record_format(const char *optarg, enum recorder_format *format) {
-    if (!strcmp(optarg, "mp4")) {
-        *format = RECORDER_FORMAT_MP4;
-        return true;
-    }
-    if (!strcmp(optarg, "mkv")) {
-        *format = RECORDER_FORMAT_MKV;
-        return true;
-    }
-    LOGE("Unsupported format: %s (expected mp4 or mkv)", optarg);
-    return false;
-}
-
-static enum recorder_format
-guess_record_format(const char *filename) {
-    size_t len = strlen(filename);
-    if (len < 4) {
-        return 0;
-    }
-    const char *ext = &filename[len - 4];
-    if (!strcmp(ext, ".mp4")) {
-        return RECORDER_FORMAT_MP4;
-    }
-    if (!strcmp(ext, ".mkv")) {
-        return RECORDER_FORMAT_MKV;
-    }
-    return 0;
-}
-
-#define OPT_RENDER_EXPIRED_FRAMES 1000
-#define OPT_WINDOW_TITLE          1001
-#define OPT_PUSH_TARGET           1002
-#define OPT_ALWAYS_ON_TOP         1003
-#define OPT_CROP                  1004
-#define OPT_RECORD_FORMAT         1005
-#define OPT_PREFER_TEXT           1006
-#define OPT_WINDOW_X              1007
-#define OPT_WINDOW_Y              1008
-#define OPT_WINDOW_WIDTH          1009
-#define OPT_WINDOW_HEIGHT         1010
-#define OPT_WINDOW_BORDERLESS     1011
-#define OPT_MAX_FPS               1012
-
-static bool
-parse_args(struct args *args, int argc, char *argv[]) {
-    static const struct option long_options[] = {
-        {"always-on-top",         no_argument,       NULL, OPT_ALWAYS_ON_TOP},
-        {"bit-rate",              required_argument, NULL, 'b'},
-        {"crop",                  required_argument, NULL, OPT_CROP},
-        {"fullscreen",            no_argument,       NULL, 'f'},
-        {"help",                  no_argument,       NULL, 'h'},
-        {"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'},
-        {"port",                  required_argument, NULL, 'p'},
-        {"push-target",           required_argument, NULL, OPT_PUSH_TARGET},
-        {"record",                required_argument, NULL, 'r'},
-        {"record-format",         required_argument, NULL, OPT_RECORD_FORMAT},
-        {"render-expired-frames", no_argument,       NULL,
-                                                     OPT_RENDER_EXPIRED_FRAMES},
-        {"serial",                required_argument, NULL, 's'},
-        {"show-touches",          no_argument,       NULL, 't'},
-        {"turn-screen-off",       no_argument,       NULL, 'S'},
-        {"prefer-text",           no_argument,       NULL, OPT_PREFER_TEXT},
-        {"version",               no_argument,       NULL, 'v'},
-        {"window-title",          required_argument, NULL, OPT_WINDOW_TITLE},
-        {"window-x",              required_argument, NULL, OPT_WINDOW_X},
-        {"window-y",              required_argument, NULL, OPT_WINDOW_Y},
-        {"window-width",          required_argument, NULL, OPT_WINDOW_WIDTH},
-        {"window-height",         required_argument, NULL, OPT_WINDOW_HEIGHT},
-        {"window-borderless",     no_argument,       NULL,
-                                                     OPT_WINDOW_BORDERLESS},
-        {NULL,                    0,                 NULL, 0  },
-    };
-
-    struct scrcpy_options *opts = &args->opts;
-
-    int c;
-    while ((c = getopt_long(argc, argv, "b:c:fF:hm:nNp:r:s:StTv", long_options,
-                            NULL)) != -1) {
-        switch (c) {
-            case 'b':
-                if (!parse_bit_rate(optarg, &opts->bit_rate)) {
-                    return false;
-                }
-                break;
-            case 'c':
-                LOGW("Deprecated option -c. Use --crop instead.");
-                // fall through
-            case OPT_CROP:
-                opts->crop = optarg;
-                break;
-            case 'f':
-                opts->fullscreen = true;
-                break;
-            case 'F':
-                LOGW("Deprecated option -F. Use --record-format instead.");
-                // fall through
-            case OPT_RECORD_FORMAT:
-                if (!parse_record_format(optarg, &opts->record_format)) {
-                    return false;
-                }
-                break;
-            case 'h':
-                args->help = true;
-                break;
-            case OPT_MAX_FPS:
-                if (!parse_max_fps(optarg, &opts->max_fps)) {
-                    return false;
-                }
-                break;
-            case 'm':
-                if (!parse_max_size(optarg, &opts->max_size)) {
-                    return false;
-                }
-                break;
-            case 'n':
-                opts->control = false;
-                break;
-            case 'N':
-                opts->display = false;
-                break;
-            case 'p':
-                if (!parse_port(optarg, &opts->port)) {
-                    return false;
-                }
-                break;
-            case 'r':
-                opts->record_filename = optarg;
-                break;
-            case 's':
-                opts->serial = optarg;
-                break;
-            case 'S':
-                opts->turn_screen_off = true;
-                break;
-            case 't':
-                opts->show_touches = true;
-                break;
-            case 'T':
-                LOGW("Deprecated option -T. Use --always-on-top instead.");
-                // fall through
-            case OPT_ALWAYS_ON_TOP:
-                opts->always_on_top = true;
-                break;
-            case 'v':
-                args->version = true;
-                break;
-            case OPT_RENDER_EXPIRED_FRAMES:
-                opts->render_expired_frames = true;
-                break;
-            case OPT_WINDOW_TITLE:
-                opts->window_title = optarg;
-                break;
-            case OPT_WINDOW_X:
-                if (!parse_window_position(optarg, &opts->window_x)) {
-                    return false;
-                }
-                break;
-            case OPT_WINDOW_Y:
-                if (!parse_window_position(optarg, &opts->window_y)) {
-                    return false;
-                }
-                break;
-            case OPT_WINDOW_WIDTH:
-                if (!parse_window_dimension(optarg, &opts->window_width)) {
-                    return false;
-                }
-                break;
-            case OPT_WINDOW_HEIGHT:
-                if (!parse_window_dimension(optarg, &opts->window_height)) {
-                    return false;
-                }
-                break;
-            case OPT_WINDOW_BORDERLESS:
-                opts->window_borderless = true;
-                break;
-            case OPT_PUSH_TARGET:
-                opts->push_target = optarg;
-                break;
-            case OPT_PREFER_TEXT:
-                opts->prefer_text = true;
-                break;
-            default:
-                // getopt prints the error message on stderr
-                return false;
-        }
-    }
-
-    if (!opts->display && !opts->record_filename) {
-        LOGE("-N/--no-display requires screen recording (-r/--record)");
-        return false;
-    }
-
-    if (!opts->display && opts->fullscreen) {
-        LOGE("-f/--fullscreen-window is incompatible with -N/--no-display");
-        return false;
-    }
-
-    int index = optind;
-    if (index < argc) {
-        LOGE("Unexpected additional argument: %s", argv[index]);
-        return false;
-    }
-
-    if (opts->record_format && !opts->record_filename) {
-        LOGE("Record format specified without recording");
-        return false;
-    }
-
-    if (opts->record_filename && !opts->record_format) {
-        opts->record_format = guess_record_format(opts->record_filename);
-        if (!opts->record_format) {
-            LOGE("No format specified for \"%s\" (try with -F mkv)",
-                 opts->record_filename);
-            return false;
-        }
-    }
-
-    if (!opts->control && opts->turn_screen_off) {
-        LOGE("Could not request to turn screen off if control is disabled");
-        return false;
-    }
-
-    return true;
-}
-
 int
 main(int argc, char *argv[]) {
 #ifdef __WINDOWS__
@ -598,18 +37,23 @@ main(int argc, char *argv[]) {
    setbuf(stdout, NULL);
    setbuf(stderr, NULL);
 #endif
-    struct args args = {
+
+#ifndef NDEBUG
+    SDL_LogSetAllPriority(SDL_LOG_PRIORITY_DEBUG);
+#endif
+
+    struct scrcpy_cli_args args = {
        .opts = SCRCPY_OPTIONS_DEFAULT,
        .help = false,
        .version = false,
    };

-    if (!parse_args(&args, argc, argv)) {
+    if (!scrcpy_parse_args(&args, argc, argv)) {
        return 1;
    }

    if (args.help) {
-        usage(argv[0]);
+        scrcpy_print_usage(argv[0]);
        return 0;
    }

@ -628,10 +72,6 @@ main(int argc, char *argv[]) {
        return 1;
    }

-#ifndef NDEBUG
-    SDL_LogSetAllPriority(SDL_LOG_PRIORITY_DEBUG);
-#endif
-
    int res = scrcpy(&args.opts) ? 0 : 1;

    avformat_network_deinit(); // ignore failure
--- a/app/src/scrcpy.c
+++ b/app/src/scrcpy.c
@ -280,7 +280,7 @@ scrcpy(const struct scrcpy_options *options) {
    bool record = !!options->record_filename;
    struct server_params params = {
        .crop = options->crop,
-        .local_port = options->port,
+        .port_range = options->port_range,
        .max_size = options->max_size,
        .bit_rate = options->bit_rate,
        .max_fps = options->max_fps,
--- a/app/src/scrcpy.h
+++ b/app/src/scrcpy.h
@ -5,6 +5,7 @@
 #include <stdint.h>

 #include "config.h"
+#include "common.h"
 #include "input_manager.h"
 #include "recorder.h"

@ -15,7 +16,7 @@ struct scrcpy_options {
    const char *window_title;
    const char *push_target;
    enum recorder_format record_format;
-    uint16_t port;
+    struct port_range port_range;
    uint16_t max_size;
    uint32_t bit_rate;
    uint16_t max_fps;
@ -41,8 +42,11 @@ struct scrcpy_options {
    .window_title = NULL, \
    .push_target = NULL, \
    .record_format = RECORDER_FORMAT_AUTO, \
-    .port = DEFAULT_LOCAL_PORT, \
-    .max_size = DEFAULT_LOCAL_PORT, \
+    .port_range = { \
+        .first = DEFAULT_LOCAL_PORT_RANGE_FIRST, \
+        .last = DEFAULT_LOCAL_PORT_RANGE_LAST, \
+    }, \
+    .max_size = DEFAULT_MAX_SIZE, \
    .bit_rate = DEFAULT_BIT_RATE, \
    .max_fps = 0, \
    .window_x = -1, \
--- a/app/src/server.c
+++ b/app/src/server.c
@ -6,11 +6,13 @@
 #include <libgen.h>
 #include <stdio.h>
 #include <SDL2/SDL_timer.h>
+#include <SDL2/SDL_platform.h>

 #include "config.h"
 #include "command.h"
 #include "util/log.h"
 #include "util/net.h"
+#include "util/str_util.h"

 #define SOCKET_NAME "scrcpy"
 #define SERVER_FILENAME "scrcpy-server"
@ -18,20 +20,39 @@
 #define DEFAULT_SERVER_PATH PREFIX "/share/scrcpy/" SERVER_FILENAME
 #define DEVICE_SERVER_PATH "/data/local/tmp/scrcpy-server.jar"

-static const char *
+static char *
 get_server_path(void) {
+#ifdef __WINDOWS__
+    const wchar_t *server_path_env = _wgetenv(L"SCRCPY_SERVER_PATH");
+#else
    const char *server_path_env = getenv("SCRCPY_SERVER_PATH");
+#endif
    if (server_path_env) {
-        LOGD("Using SCRCPY_SERVER_PATH: %s", server_path_env);
        // if the envvar is set, use it
-        return server_path_env;
+#ifdef __WINDOWS__
+        char *server_path = utf8_from_wide_char(server_path_env);
+#else
+        char *server_path = SDL_strdup(server_path_env);
+#endif
+        if (!server_path) {
+            LOGE("Could not allocate memory");
+            return NULL;
+        }
+        LOGD("Using SCRCPY_SERVER_PATH: %s", server_path);
+        return server_path;
    }

 #ifndef PORTABLE
    LOGD("Using server: " DEFAULT_SERVER_PATH);
+    char *server_path = SDL_strdup(DEFAULT_SERVER_PATH);
+    if (!server_path) {
+        LOGE("Could not allocate memory");
+        return NULL;
+    }
    // the absolute path is hardcoded
-    return DEFAULT_SERVER_PATH;
+    return server_path;
 #else
+
    // use scrcpy-server in the same directory as the executable
    char *executable_path = get_executable_path();
    if (!executable_path) {
@ -67,7 +88,17 @@ get_server_path(void) {

 static bool
 push_server(const char *serial) {
-    process_t process = adb_push(serial, get_server_path(), DEVICE_SERVER_PATH);
+    char *server_path = get_server_path();
+    if (!server_path) {
+        return false;
+    }
+    if (!is_regular_file(server_path)) {
+        LOGE("'%s' does not exist or is not a regular file\n", server_path);
+        SDL_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");
 }

@ -95,17 +126,6 @@ disable_tunnel_forward(const char *serial, uint16_t local_port) {
    return process_check_success(process, "adb forward --remove");
 }

-static bool
-enable_tunnel(struct server *server) {
-    if (enable_tunnel_reverse(server->serial, server->local_port)) {
-        return true;
-    }
-
-    LOGW("'adb reverse' failed, fallback to 'adb forward'");
-    server->tunnel_forward = true;
-    return enable_tunnel_forward(server->serial, server->local_port);
-}
-
 static bool
 disable_tunnel(struct server *server) {
    if (server->tunnel_forward) {
@ -114,6 +134,100 @@ disable_tunnel(struct server *server) {
    return disable_tunnel_reverse(server->serial);
 }

+static socket_t
+listen_on_port(uint16_t port) {
+#define IPV4_LOCALHOST 0x7F000001
+    return net_listen(IPV4_LOCALHOST, port, 1);
+}
+
+static bool
+enable_tunnel_reverse_any_port(struct server *server,
+                               struct port_range port_range) {
+    uint16_t port = port_range.first;
+    for (;;) {
+        if (!enable_tunnel_reverse(server->serial, port)) {
+            // the command itself failed, it will fail on any port
+            return false;
+        }
+
+        // At the application level, the device part is "the server" because it
+        // serves video stream and control. However, at the network level, the
+        // client listens and the server connects to the client. That way, the
+        // client can listen before starting the server app, so there is no
+        // need to try to connect until the server socket is listening on the
+        // device.
+        server->server_socket = listen_on_port(port);
+        if (server->server_socket != INVALID_SOCKET) {
+            // success
+            server->local_port = port;
+            return true;
+        }
+
+        // failure, disable tunnel and try another port
+        if (!disable_tunnel_reverse(server->serial)) {
+            LOGW("Could not remove reverse tunnel on port %" PRIu16, port);
+        }
+
+        // check before incrementing to avoid overflow on port 65535
+        if (port < port_range.last) {
+            LOGW("Could not listen on port %" PRIu16", retrying on %" PRIu16,
+                 port, port + 1);
+            port++;
+            continue;
+        }
+
+        if (port_range.first == port_range.last) {
+            LOGE("Could not listen on port %" PRIu16, port_range.first);
+        } else {
+            LOGE("Could not listen on any port in range %" PRIu16 ":%" PRIu16,
+                 port_range.first, port_range.last);
+        }
+        return false;
+    }
+}
+
+static bool
+enable_tunnel_forward_any_port(struct server *server,
+                               struct port_range port_range) {
+    server->tunnel_forward = true;
+    uint16_t port = port_range.first;
+    for (;;) {
+        if (enable_tunnel_forward(server->serial, port)) {
+            // success
+            server->local_port = port;
+            return true;
+        }
+
+        if (port < port_range.last) {
+            LOGW("Could not forward port %" PRIu16", retrying on %" PRIu16,
+                 port, port + 1);
+            port++;
+            continue;
+        }
+
+        if (port_range.first == port_range.last) {
+            LOGE("Could not forward port %" PRIu16, port_range.first);
+        } else {
+            LOGE("Could not forward any port in range %" PRIu16 ":%" PRIu16,
+                 port_range.first, port_range.last);
+        }
+        return false;
+    }
+}
+
+static bool
+enable_tunnel_any_port(struct server *server, struct port_range port_range) {
+    if (enable_tunnel_reverse_any_port(server, port_range)) {
+        return true;
+    }
+
+    // if "adb reverse" does not work (e.g. over "adb connect"), it fallbacks to
+    // "adb forward", so the app socket is the client
+
+    LOGW("'adb reverse' failed, fallback to 'adb forward'");
+    return enable_tunnel_forward_any_port(server, port_range);
+}
+
 static process_t
 execute_server(struct server *server, const struct server_params *params) {
    char max_size_string[6];
@ -156,13 +270,6 @@ execute_server(struct server *server, const struct server_params *params) {
    return adb_execute(server->serial, cmd, sizeof(cmd) / sizeof(cmd[0]));
 }

-#define IPV4_LOCALHOST 0x7F000001
-
-static socket_t
-listen_on_port(uint16_t port) {
-    return net_listen(IPV4_LOCALHOST, port, 1);
-}
-
 static socket_t
 connect_and_read_byte(uint16_t port) {
    socket_t socket = net_connect(IPV4_LOCALHOST, port);
@ -216,7 +323,7 @@ server_init(struct server *server) {
 bool
 server_start(struct server *server, const char *serial,
             const struct server_params *params) {
-    server->local_port = params->local_port;
+    server->port_range = params->port_range;

    if (serial) {
        server->serial = SDL_strdup(serial);
@ -230,30 +337,11 @@ server_start(struct server *server, const char *serial,
        return false;
    }

-    if (!enable_tunnel(server)) {
+    if (!enable_tunnel_any_port(server, params->port_range)) {
        SDL_free(server->serial);
        return false;
    }

-    // if "adb reverse" does not work (e.g. over "adb connect"), it fallbacks to
-    // "adb forward", so the app socket is the client
-    if (!server->tunnel_forward) {
-        // At the application level, the device part is "the server" because it
-        // serves video stream and control. However, at the network level, the
-        // client listens and the server connects to the client. That way, the
-        // client can listen before starting the server app, so there is no
-        // need to try to connect until the server socket is listening on the
-        // device.
-
-        server->server_socket = listen_on_port(params->local_port);
-        if (server->server_socket == INVALID_SOCKET) {
-            LOGE("Could not listen on port %" PRIu16, params->local_port);
-            disable_tunnel(server);
-            SDL_free(server->serial);
-            return false;
-        }
-    }
-
    // server will connect to our server socket
    server->process = execute_server(server, params);

--- a/app/src/server.h
+++ b/app/src/server.h
@ -6,6 +6,7 @@

 #include "config.h"
 #include "command.h"
+#include "common.h"
 #include "util/net.h"

 struct server {
@ -14,25 +15,30 @@ struct server {
    socket_t server_socket; // only used if !tunnel_forward
    socket_t video_socket;
    socket_t control_socket;
-    uint16_t local_port;
+    struct 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,          \
-    .server_socket = INVALID_SOCKET,  \
-    .video_socket = INVALID_SOCKET,   \
+#define SERVER_INITIALIZER { \
+    .serial = NULL, \
+    .process = PROCESS_NONE, \
+    .server_socket = INVALID_SOCKET, \
+    .video_socket = INVALID_SOCKET, \
    .control_socket = INVALID_SOCKET, \
-    .local_port = 0,                  \
-    .tunnel_enabled = false,          \
-    .tunnel_forward = false,          \
+    .port_range = { \
+        .first = 0, \
+        .last = 0, \
+    }, \
+    .local_port = 0, \
+    .tunnel_enabled = false, \
+    .tunnel_forward = false, \
 }

 struct server_params {
    const char *crop;
-    uint16_t local_port;
+    struct port_range port_range;
    uint16_t max_size;
    uint32_t bit_rate;
    uint16_t max_fps;
--- a/app/src/sys/unix/command.c
+++ b/app/src/sys/unix/command.c
@ -14,12 +14,50 @@
 #include <limits.h>
 #include <signal.h>
 #include <stdlib.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) {
+    char *path = getenv("PATH");
+    if (!path)
+        return false;
+    path = strdup(path);
+    if (!path)
+        return false;
+
+    bool ret = false;
+    size_t file_len = strlen(file);
+    char *saveptr;
+    for (char *dir = strtok_r(path, ":", &saveptr); dir;
+            dir = strtok_r(NULL, ":", &saveptr)) {
+        size_t dir_len = strlen(dir);
+        char *fullpath = malloc(dir_len + file_len + 2);
+        if (!fullpath)
+            continue;
+        memcpy(fullpath, dir, dir_len);
+        fullpath[dir_len] = '/';
+        memcpy(fullpath + dir_len + 1, file, file_len + 1);
+
+        struct stat sb;
+        bool fullpath_executable = stat(fullpath, &sb) == 0 &&
+            sb.st_mode & S_IXUSR;
+        free(fullpath);
+        if (fullpath_executable) {
+            ret = true;
+            break;
+        }
+    }
+
+    free(path);
+    return ret;
+}
+
 enum process_result
 cmd_execute(const char *const argv[], pid_t *pid) {
    int fd[2];
@ -127,3 +165,14 @@ get_executable_path(void) {
    return NULL;
 #endif
 }
+
+bool
+is_regular_file(const char *path) {
+    struct stat path_stat;
+
+    if (stat(path, &path_stat)) {
+        perror("stat");
+        return false;
+    }
+    return S_ISREG(path_stat.st_mode);
+}
--- a/app/src/sys/unix/net.c
+++ b/app/src/sys/unix/net.c
@ -1,21 +0,0 @@
-#include "util/net.h"
-
-#include <unistd.h>
-
-#include "config.h"
-
-bool
-net_init(void) {
-    // do nothing
-    return true;
-}
-
-void
-net_cleanup(void) {
-    // do nothing
-}
-
-bool
-net_close(socket_t socket) {
-    return !close(socket);
-}
--- a/app/src/sys/win/command.c
+++ b/app/src/sys/win/command.c
@ -1,9 +1,17 @@
 #include "command.h"

+#include <sys/stat.h>
+
 #include "config.h"
 #include "util/log.h"
 #include "util/str_util.h"

+bool
+cmd_search(const char *file) {
+    // :/
+    return false;
+}
+
 static int
 build_cmd(char *cmd, size_t len, const char *const argv[]) {
    // Windows command-line parsing is WTF:
@ -90,3 +98,22 @@ get_executable_path(void) {
    buf[len] = '\0';
    return utf8_from_wide_char(buf);
 }
+
+bool
+is_regular_file(const char *path) {
+    wchar_t *wide_path = utf8_to_wide_char(path);
+    if (!wide_path) {
+        LOGC("Could not allocate wide char string");
+        return false;
+    }
+
+    struct _stat path_stat;
+    int r = _wstat(wide_path, &path_stat);
+    SDL_free(wide_path);
+
+    if (r) {
+        perror("stat");
+        return false;
+    }
+    return S_ISREG(path_stat.st_mode);
+}
--- a/app/src/sys/win/net.c
+++ b/app/src/sys/win/net.c
@ -1,25 +0,0 @@
-#include "util/net.h"
-
-#include "config.h"
-#include "util/log.h"
-
-bool
-net_init(void) {
-    WSADATA wsa;
-    int res = WSAStartup(MAKEWORD(2, 2), &wsa) < 0;
-    if (res < 0) {
-        LOGC("WSAStartup failed with error %d", res);
-        return false;
-    }
-    return true;
-}
-
-void
-net_cleanup(void) {
-    WSACleanup();
-}
-
-bool
-net_close(socket_t socket) {
-    return !closesocket(socket);
-}
--- a/app/src/util/net.c
+++ b/app/src/util/net.c
@ -1,6 +1,7 @@
 #include "net.h"

 #include <stdio.h>
+#include <SDL2/SDL_platform.h>

 #include "config.h"
 #include "log.h"
@ -115,3 +116,32 @@ bool
 net_shutdown(socket_t socket, int how) {
    return !shutdown(socket, how);
 }
+
+bool
+net_init(void) {
+#ifdef __WINDOWS__
+    WSADATA wsa;
+    int res = WSAStartup(MAKEWORD(2, 2), &wsa) < 0;
+    if (res < 0) {
+        LOGC("WSAStartup failed with error %d", res);
+        return false;
+    }
+#endif
+    return true;
+}
+
+void
+net_cleanup(void) {
+#ifdef __WINDOWS__
+    WSACleanup();
+#endif
+}
+
+bool
+net_close(socket_t socket) {
+#ifdef __WINDOWS__
+    return !closesocket(socket);
+#else
+    return !close(socket);
+#endif
+}
--- a/app/src/util/str_util.c
+++ b/app/src/util/str_util.c
@ -1,5 +1,7 @@
 #include "str_util.h"

+#include <errno.h>
+#include <limits.h>
 #include <stdlib.h>
 #include <string.h>

@ -60,6 +62,88 @@ strquote(const char *src) {
    return quoted;
 }

+bool
+parse_integer(const char *s, long *out) {
+    char *endptr;
+    if (*s == '\0') {
+        return false;
+    }
+    errno = 0;
+    long value = strtol(s, &endptr, 0);
+    if (errno == ERANGE) {
+        return false;
+    }
+    if (*endptr != '\0') {
+        return false;
+    }
+
+    *out = value;
+    return true;
+}
+
+size_t
+parse_integers(const char *s, const char sep, size_t max_items, long *out) {
+    size_t count = 0;
+    char *endptr;
+    do {
+        errno = 0;
+        long value = strtol(s, &endptr, 0);
+        if (errno == ERANGE) {
+            return 0;
+        }
+
+        if (endptr == s || (*endptr != sep && *endptr != '\0')) {
+            return 0;
+        }
+
+        out[count++] = value;
+        if (*endptr == sep) {
+            if (count >= max_items) {
+                // max items already reached, could not accept a new item
+                return 0;
+            }
+            // parse the next token during the next iteration
+            s = endptr + 1;
+        }
+    } while (*endptr != '\0');
+
+    return count;
+}
+
+bool
+parse_integer_with_suffix(const char *s, long *out) {
+    char *endptr;
+    if (*s == '\0') {
+        return false;
+    }
+    errno = 0;
+    long value = strtol(s, &endptr, 0);
+    if (errno == ERANGE) {
+        return false;
+    }
+    int mul = 1;
+    if (*endptr != '\0') {
+        if (s == endptr) {
+            return false;
+        }
+        if ((*endptr == 'M' || *endptr == 'm') && endptr[1] == '\0') {
+            mul = 1000000;
+        } else if ((*endptr == 'K' || *endptr == 'k') && endptr[1] == '\0') {
+            mul = 1000;
+        } else {
+            return false;
+        }
+    }
+
+    if ((value < 0 && LONG_MIN / mul > value) ||
+        (value > 0 && LONG_MAX / mul < value)) {
+        return false;
+    }
+
+    *out = value * mul;
+    return true;
+}
+
 size_t
 utf8_truncation_index(const char *utf8, size_t max_len) {
    size_t len = strlen(utf8);
--- a/app/src/util/str_util.h
+++ b/app/src/util/str_util.h
@ -1,6 +1,7 @@
 #ifndef STRUTIL_H
 #define STRUTIL_H

+#include <stdbool.h>
 #include <stddef.h>

 #include "config.h"
@ -25,6 +26,23 @@ xstrjoin(char *dst, const char *const tokens[], char sep, size_t n);
 char *
 strquote(const char *src);

+// parse s as an integer into value
+// returns true if the conversion succeeded, false otherwise
+bool
+parse_integer(const char *s, long *out);
+
+// parse s as integers separated by sep (for example '1234:2000')
+// returns the number of integers on success, 0 on failure
+size_t
+parse_integers(const char *s, const char sep, size_t max_items, long *out);
+
+// parse s as an integer into value
+// like parse_integer(), but accept 'k'/'K' (x1000) and 'm'/'M' (x1000000) as
+// suffix
+// returns true if the conversion succeeded, false otherwise
+bool
+parse_integer_with_suffix(const char *s, long *out);
+
 // 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);
--- a/app/tests/test_cli.c
+++ b/app/tests/test_cli.c
@ -0,0 +1,129 @@
+#include <assert.h>
+
+#include "cli.h"
+#include "common.h"
+
+static void test_flag_version(void) {
+    struct scrcpy_cli_args args = {
+        .opts = SCRCPY_OPTIONS_DEFAULT,
+        .help = false,
+        .version = false,
+    };
+
+    char *argv[] = {"scrcpy", "-v"};
+
+    bool ok = scrcpy_parse_args(&args, 2, argv);
+    assert(ok);
+    assert(!args.help);
+    assert(args.version);
+}
+
+static void test_flag_help(void) {
+    struct scrcpy_cli_args args = {
+        .opts = SCRCPY_OPTIONS_DEFAULT,
+        .help = false,
+        .version = false,
+    };
+
+    char *argv[] = {"scrcpy", "-v"};
+
+    bool ok = scrcpy_parse_args(&args, 2, argv);
+    assert(ok);
+    assert(!args.help);
+    assert(args.version);
+}
+
+static void test_options(void) {
+    struct scrcpy_cli_args args = {
+        .opts = SCRCPY_OPTIONS_DEFAULT,
+        .help = false,
+        .version = false,
+    };
+
+    char *argv[] = {
+        "scrcpy",
+        "--always-on-top",
+        "--bit-rate", "5M",
+        "--crop", "100:200:300:400",
+        "--fullscreen",
+        "--max-fps", "30",
+        "--max-size", "1024",
+        // "--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",
+        "--prefer-text",
+        "--window-title", "my device",
+        "--window-x", "100",
+        "--window-y", "-1",
+        "--window-width", "600",
+        "--window-height", "0",
+        "--window-borderless",
+    };
+
+    bool ok = scrcpy_parse_args(&args, ARRAY_LEN(argv), argv);
+    assert(ok);
+
+    const struct scrcpy_options *opts = &args.opts;
+    assert(opts->always_on_top);
+    fprintf(stderr, "%d\n", (int) opts->bit_rate);
+    assert(opts->bit_rate == 5000000);
+    assert(!strcmp(opts->crop, "100:200:300:400"));
+    assert(opts->fullscreen);
+    assert(opts->max_fps == 30);
+    assert(opts->max_size == 1024);
+    assert(opts->port_range.first == 1234);
+    assert(opts->port_range.last == 1236);
+    assert(!strcmp(opts->push_target, "/sdcard/Movies"));
+    assert(!strcmp(opts->record_filename, "file"));
+    assert(opts->record_format == RECORDER_FORMAT_MKV);
+    assert(opts->render_expired_frames);
+    assert(!strcmp(opts->serial, "0123456789abcdef"));
+    assert(opts->show_touches);
+    assert(opts->turn_screen_off);
+    assert(opts->prefer_text);
+    assert(!strcmp(opts->window_title, "my device"));
+    assert(opts->window_x == 100);
+    assert(opts->window_y == -1);
+    assert(opts->window_width == 600);
+    assert(opts->window_height == 0);
+    assert(opts->window_borderless);
+}
+
+static void test_options2(void) {
+    struct scrcpy_cli_args args = {
+        .opts = SCRCPY_OPTIONS_DEFAULT,
+        .help = false,
+        .version = false,
+    };
+
+    char *argv[] = {
+        "scrcpy",
+        "--no-control",
+        "--no-display",
+        "--record", "file.mp4", // cannot enable --no-display without recording
+    };
+
+    bool ok = scrcpy_parse_args(&args, ARRAY_LEN(argv), argv);
+    assert(ok);
+
+    const struct scrcpy_options *opts = &args.opts;
+    assert(!opts->control);
+    assert(!opts->display);
+    assert(!strcmp(opts->record_filename, "file.mp4"));
+    assert(opts->record_format == RECORDER_FORMAT_MP4);
+}
+
+int main(void) {
+    test_flag_version();
+    test_flag_help();
+    test_options();
+    test_options2();
+    return 0;
+};
--- a/app/tests/test_strutil.c
+++ b/app/tests/test_strutil.c
@ -1,4 +1,6 @@
 #include <assert.h>
+#include <limits.h>
+#include <stdio.h>
 #include <string.h>
 #include <SDL2/SDL.h>

@ -168,6 +170,122 @@ static void test_utf8_truncate(void) {
    assert(count == 7); // no more chars
 }

+static void test_parse_integer(void) {
+    long value;
+    bool ok = parse_integer("1234", &value);
+    assert(ok);
+    assert(value == 1234);
+
+    ok = parse_integer("-1234", &value);
+    assert(ok);
+    assert(value == -1234);
+
+    ok = parse_integer("1234k", &value);
+    assert(!ok);
+
+    ok = parse_integer("123456789876543212345678987654321", &value);
+    assert(!ok); // out-of-range
+}
+
+static void test_parse_integers(void) {
+    long values[5];
+
+    size_t count = parse_integers("1234", ':', 5, values);
+    assert(count == 1);
+    assert(values[0] == 1234);
+
+    count = parse_integers("1234:5678", ':', 5, values);
+    assert(count == 2);
+    assert(values[0] == 1234);
+    assert(values[1] == 5678);
+
+    count = parse_integers("1234:5678", ':', 2, values);
+    assert(count == 2);
+    assert(values[0] == 1234);
+    assert(values[1] == 5678);
+
+    count = parse_integers("1234:-5678", ':', 2, values);
+    assert(count == 2);
+    assert(values[0] == 1234);
+    assert(values[1] == -5678);
+
+    count = parse_integers("1:2:3:4:5", ':', 5, values);
+    assert(count == 5);
+    assert(values[0] == 1);
+    assert(values[1] == 2);
+    assert(values[2] == 3);
+    assert(values[3] == 4);
+    assert(values[4] == 5);
+
+    count = parse_integers("1234:5678", ':', 1, values);
+    assert(count == 0); // max_items == 1
+
+    count = parse_integers("1:2:3:4:5", ':', 3, values);
+    assert(count == 0); // max_items == 3
+
+    count = parse_integers(":1234", ':', 5, values);
+    assert(count == 0); // invalid
+
+    count = parse_integers("1234:", ':', 5, values);
+    assert(count == 0); // invalid
+
+    count = parse_integers("1234:", ':', 1, values);
+    assert(count == 0); // invalid, even when max_items == 1
+
+    count = parse_integers("1234::5678", ':', 5, values);
+    assert(count == 0); // invalid
+}
+
+static void test_parse_integer_with_suffix(void) {
+    long value;
+    bool ok = parse_integer_with_suffix("1234", &value);
+    assert(ok);
+    assert(value == 1234);
+
+    ok = parse_integer_with_suffix("-1234", &value);
+    assert(ok);
+    assert(value == -1234);
+
+    ok = parse_integer_with_suffix("1234k", &value);
+    assert(ok);
+    assert(value == 1234000);
+
+    ok = parse_integer_with_suffix("1234m", &value);
+    assert(ok);
+    assert(value == 1234000000);
+
+    ok = parse_integer_with_suffix("-1234k", &value);
+    assert(ok);
+    assert(value == -1234000);
+
+    ok = parse_integer_with_suffix("-1234m", &value);
+    assert(ok);
+    assert(value == -1234000000);
+
+    ok = parse_integer_with_suffix("123456789876543212345678987654321", &value);
+    assert(!ok); // out-of-range
+
+    char buf[32];
+
+    sprintf(buf, "%ldk", LONG_MAX / 2000);
+    ok = parse_integer_with_suffix(buf, &value);
+    assert(ok);
+    assert(value == LONG_MAX / 2000 * 1000);
+
+    sprintf(buf, "%ldm", LONG_MAX / 2000);
+    ok = parse_integer_with_suffix(buf, &value);
+    assert(!ok);
+
+    sprintf(buf, "%ldk", LONG_MIN / 2000);
+    ok = parse_integer_with_suffix(buf, &value);
+    assert(ok);
+    assert(value == LONG_MIN / 2000 * 1000);
+
+    sprintf(buf, "%ldm", LONG_MIN / 2000);
+    ok = parse_integer_with_suffix(buf, &value);
+    assert(!ok);
+}
+
 int main(void) {
    test_xstrncpy_simple();
    test_xstrncpy_just_fit();
@ -179,5 +297,8 @@ int main(void) {
    test_xstrjoin_truncated_after_sep();
    test_strquote();
    test_utf8_truncate();
+    test_parse_integer();
+    test_parse_integers();
+    test_parse_integer_with_suffix();
    return 0;
 }
--- a/meson.build
+++ b/meson.build
@ -1,5 +1,5 @@
 project('scrcpy', 'c',
-        version: '1.11',
+        version: '1.12.1',
        meson_version: '>= 0.37',
        default_options: [
            'c_std=c11',
--- a/server/build.gradle
+++ b/server/build.gradle
@ -6,8 +6,8 @@ android {
        applicationId "com.genymobile.scrcpy"
        minSdkVersion 21
        targetSdkVersion 29
-        versionCode 12
-        versionName "1.11"
+        versionCode 14
+        versionName "1.12.1"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
--- a/server/build_without_gradle.sh
+++ b/server/build_without_gradle.sh
@ -12,7 +12,7 @@
 set -e

 SCRCPY_DEBUG=false
-SCRCPY_VERSION_NAME=1.11
+SCRCPY_VERSION_NAME=1.12.1

 PLATFORM=${ANDROID_PLATFORM:-29}
 BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-29.0.2}
--- a/server/src/main/java/com/genymobile/scrcpy/ScreenEncoder.java
+++ b/server/src/main/java/com/genymobile/scrcpy/ScreenEncoder.java
@ -19,6 +19,7 @@ public class ScreenEncoder implements Device.RotationListener {

    private static final int DEFAULT_I_FRAME_INTERVAL = 10; // seconds
    private static final int REPEAT_FRAME_DELAY_US = 100_000; // repeat after 100ms
+    private static final String KEY_MAX_FPS_TO_ENCODER = "max-fps-to-encoder";

    private static final int NO_PTS = -1;

@ -150,11 +151,10 @@ public class ScreenEncoder implements Device.RotationListener {
        // display the very first frame, and recover from bad quality when no new frames
        format.setLong(MediaFormat.KEY_REPEAT_PREVIOUS_FRAME_AFTER, REPEAT_FRAME_DELAY_US); // µs
        if (maxFps > 0) {
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
-                format.setFloat(MediaFormat.KEY_MAX_FPS_TO_ENCODER, maxFps);
-            } else {
-                Ln.w("Max FPS is only supported since Android 10, the option has been ignored");
-            }
+            // The key existed privately before Android 10:
+            // <https://android.googlesource.com/platform/frameworks/base/+/625f0aad9f7a259b6881006ad8710adce57d1384%5E%21/>
+            // <https://github.com/Genymobile/scrcpy/issues/488#issuecomment-567321437>
+            format.setFloat(KEY_MAX_FPS_TO_ENCODER, maxFps);
        }
        return format;
    }
--- a/server/src/main/java/com/genymobile/scrcpy/Server.java
+++ b/server/src/main/java/com/genymobile/scrcpy/Server.java
@ -135,6 +135,7 @@ public final class Server {
        }
    }

+    @SuppressWarnings("checkstyle:MagicNumber")
    private static void suggestFix(Throwable e) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (e instanceof MediaCodec.CodecException) {
Author	SHA1	Message	Date
yangfl	665488298e	Show a friendly hint for adb installation Signed-off-by: Romain Vimont <rom@rom1v.com>	2020-01-18 17:48:42 +01:00
Romain Vimont	dc7fcf3c7a	Accept port range Accept a range of ports to listen to, so that it does not fail if another instance of scrcpy is currently starting. The range can be passed via the command line: scrcpy -p 27183:27186 scrcpy -p 27183 # implicitly 27183:27183, as before The default is 27183:27199. Closes #951 <https://github.com/Genymobile/scrcpy/issues/951>	2020-01-18 17:21:00 +01:00
Romain Vimont	2a3a9d4ea9	Add util function to parse a list of integers This will help parsing arguments like '1234:5678' into a list of integers.	2020-01-18 17:21:00 +01:00
Romain Vimont	ca0031cbde	Refactor server tunnel initialization Start the server socket in enable_tunnel() directly. For the caller point of view, enabling the tunnel opens a port (either the server socket locally or the "adb forward" process).	2020-01-18 17:21:00 +01:00
Romain Vimont	d1a9a76cc6	Reorder functions Move functions so that they can be called from enable_tunnel() (in the following commit).	2020-01-18 17:21:00 +01:00
Romain Vimont	a8ceaf5284	Fix include order	2020-01-17 21:00:14 +01:00
Romain Vimont	83d48267a7	Accept --max-fps before Android 10 KEY_MAX_FPS_TO_ENCODER existed privately before Android 10: <https://github.com/Genymobile/scrcpy/issues/488#issuecomment-567321437>	2019-12-19 11:52:09 +01:00
Romain Vimont	db6252e52b	Simplify net.c The platform-specific code for net.c was implemented in sys/*/net.c. But the differences are quite limited, so use ifdef-blocks in the single net.c instead.	2019-12-15 22:04:09 +01:00
Romain Vimont	229eeb24a2	Merge pull request #1002 into dev Fix utf-8 char path in windows <https://github.com/Genymobile/scrcpy/pull/1002>	2019-12-15 13:24:17 +01:00
Yu-Chen Lin	f9786e5034	Get env in windows correctly Signed-off-by: Yu-Chen Lin <npes87184@gmail.com> Signed-off-by: Romain Vimont <rom@rom1v.com>	2019-12-14 18:47:54 +01:00
Yu-Chen Lin	78a320a763	Fix utf-8 char path in windows The file 'E:\安安\scrcpy-win64-v1.12.1-1-g31bd950\scrcpy-server' exists, however, it will show msg as follow: INFO: scrcpy 1.12.1 <https://github.com/Genymobile/scrcpy> stat: No such file or directory ERROR: 'E:\安安\scrcpy-win64-v1.12.1-1-g31bd950\scrcpy-server' does not exist or is not a regular file Press any key to continue... This patch fixes it. Signed-off-by: Yu-Chen Lin <npes87184@gmail.com> Signed-off-by: Romain Vimont <rom@rom1v.com>	2019-12-14 18:47:30 +01:00
Romain Vimont	7d5845196e	Fix memory leak on portable builds The function get_server_path() sometimes returned an owned string, sometimes a non-owned string. Always return an allocated (owned) string, and free it after usage.	2019-12-14 18:23:25 +01:00
Romain Vimont	31bd95022b	Update links to v1.12.1 in README and BUILD	2019-12-10 17:59:44 +01:00
Romain Vimont	4687a0ebac	Bump version to 1.12.1	2019-12-10 10:07:48 +01:00
Romain Vimont	6965d051ae	Limit bitrate range to 31 bits integer A proper solution could be to use "long long" instead (guaranteed to be at least 64 bits), but it adds its own problems (e.g. "%lld" is not supported as a printf format on all platforms). In practice, we don't need such high values, so keep it simple. Fixes #995 <https://github.com/Genymobile/scrcpy/issues/995>	2019-12-10 09:28:27 +01:00
Romain Vimont	71df3175bd	Update links to v1.12 in README and BUILD	2019-12-09 23:52:26 +01:00
Romain Vimont	a0f8e7fd9f	Bump version to 1.12	2019-12-09 23:24:43 +01:00
Romain Vimont	e4cebc8d4c	Do not build tests in release mode Assertions would not be executed. And as a side effect, it causes "unused variable" warnings.	2019-12-09 23:24:39 +01:00
Romain Vimont	ba1b36758e	Define SDL_MAIN_HANDLED in all tests Each test defines its own main() function. If this flag is not set, then SDL redefines it to SDL_main(), causing compilation failures.	2019-12-09 23:24:39 +01:00
Romain Vimont	ad92a192b5	Fix meson.build codestyle	2019-12-09 23:00:55 +01:00
Romain Vimont	81a8e503e5	Describe screen rotation shortcut in README	2019-12-09 22:51:27 +01:00
Romain Vimont	242e57d69b	Merge branch 'master' into dev	2019-12-09 22:37:20 +01:00
Romain Vimont	024c2f7e6b	Configure log priority early The log priority must be configured before parsing command-line arguments, in order to get logs as expected.	2019-12-09 22:31:14 +01:00
Romain Vimont	1eae139b6e	Add missing consts String parsing functions should not be able to modify their input.	2019-12-09 22:30:48 +01:00
Romain Vimont	419c869c9c	Use ARRAY_LEN() macro in tests	2019-12-09 20:59:11 +01:00
Romain Vimont	929bf48c7e	Add tests for command-line parsing	2019-12-08 23:19:01 +01:00
Romain Vimont	d950383b72	Move command-line parsing to a separate file	2019-12-08 23:18:57 +01:00
Romain Vimont	61274a7cdb	Factorize integer argument parsing Add util functions for integer parsing (with tests), and factorize integer argument parsing to avoid code duplication.	2019-12-08 21:19:53 +01:00
Romain Vimont	64bcac9157	Refuse to push a non-regular file server If SCRCPY_SERVER_PATH points to a directory, then a directory will be pushed to /data/local/tmp/scrcpy-server.jar. When executing it, app_process will just abort and leave the directory on the device, causing scrcpy to always fail. To avoid the problem, check that the server is a regular file before pushing it. Closes #956 <https://github.com/Genymobile/scrcpy/issues/956>	2019-12-05 21:07:11 +01:00
Romain Vimont	3259c60b22	Fix test compilation on mingw Including SDL2/SDL.h redefines main to SDL_main by default.	2019-12-05 21:06:49 +01:00
Romain Vimont	e0b117de13	Fix checkstyle warning	2019-12-05 21:05:45 +01:00
Seb Leo	684e0abb74	Update BUILD.md to install adb package PR <https://github.com/Genymobile/scrcpy/pull/965> Signed-off-by: Romain Vimont <rom@rom1v.com>	2019-12-03 16:05:23 +01:00
Romain Vimont	86fcd89d80	Fix max size default value Suggested-by: jurkov Closes <https://github.com/Genymobile/scrcpy/issues/978>	2019-12-03 12:07:36 +01:00
yangfl	8bc056b9c6	Fix manpage format	2019-11-27 10:58:17 +01:00
seoyeonK	8ec077ce1b	Add Korean translation for README and FAQ PR <https://github.com/Genymobile/scrcpy/pull/934> Signed-off-by: Romain Vimont <rom@rom1v.com>	2019-11-24 11:09:30 +01:00