Update README
Explain how to build, install and run the application.
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Romain Vimont
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README.md
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README.md
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# ScrCpy
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# scrcpy
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This project displays screens of Android devices plugged on USB in live.
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This project displays screens of Android devices connected on USB, and allow to
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control them using the host mouse and keyboard. It does not require any _root_
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access. It works on _GNU/Linux_, _Windows_ and _Mac OS_.
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## Run
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## Requirements
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### Runtime requirements
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The Android part requires at least API 21 (Android 5.0).
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This projects requires _FFmpeg_, _LibSDL2_ and _LibSDL2-net_.
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You need [adb] (recent enough so that `adb reverse` is implemented, it works
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with 1.0.36). It is available in the [Android SDK platform
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tools][platform-tools], on packaged in your distribution (`android-adb-tools`).
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On Windows, just download the [platform-tools][platform-tools-windows] and
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extract the following files to a directory accessible from your `PATH`:
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- `adb.exe`
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- `AdbWinApi.dll`
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- `AdbWinUsbApi.dll`
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Make sure you [enabled adb debugging][enable-adb] on your device(s).
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[adb]: https://developer.android.com/studio/command-line/adb.html
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[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
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[platform-tools]: https://developer.android.com/studio/releases/platform-tools.html
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[platform-tools-windows]: https://dl.google.com/android/repository/platform-tools-latest-windows.zip
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The client requires _FFmpeg_ and _LibSDL2_.
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## Build and install
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### System-specific steps
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#### Linux
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Install the packages from your package manager. For example, on Debian:
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Install the required packages from your package manager (here, for Debian):
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sudo apt install ffmpeg libsdl2-2.0.0 libsdl2-net-2.0.0
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# runtime dependencies
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sudo apt install ffmpeg libsdl2-2.0.0
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# build dependencies
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sudo apt install make gcc openjdk-8-jdk pkg-config meson zip \
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libavcodec-dev libavformat-dev libavutil-dev \
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libsdl2-dev
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#### Windows
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From [MSYS2]:
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For Windows, for simplicity, a prebuilt package with all the dependencies
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(including `adb`) is available: TODO.
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pacman -S mingw-w64-x86_64-SDL2
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pacman -S mingw-w64-x86_64-SDL2_net
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pacman -S mingw-w64-x86_64-ffmpeg
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Instead, you may want to build it manually. You need [MSYS2] to build the
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project. From an MSYS2 terminal, install the required packages:
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[MSYS2]: http://www.msys2.org/
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# runtime dependencies
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pacman -S mingw-w64-x86_64-SDL2 \
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mingw-w64-x86_64-ffmpeg
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#### MacOS
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# build dependencies
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pacman -S mingw-w64-x86_64-make \
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mingw-w64-x86_64-gcc \
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mingw-w64-x86_64-pkg-config \
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mingw-w64-x86_64-meson \
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zip
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TODO
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## Build
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The project is divided into two parts:
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- the server, running on the device (in `server/`);
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- the client, running on the computer (in `app/`).
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The server is a raw Java project requiring Android SDK. It not an Android
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project: the target file is a `.jar`, and a `main()` method is executed with
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_shell_ rights.
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The client is a C project using [SDL] and [FFmpeg], built with [Meson]/[Ninja].
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The root directory contains a `Makefile` to build both parts.
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[sdl]: https://www.libsdl.org/
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[ffmpeg]: https://www.ffmpeg.org/
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[meson]: http://mesonbuild.com/
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[ninja]: https://ninja-build.org/
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### Build requirements
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Install the [Android SDK], the JDK 8 (`openjdk-8-jdk`), and the packages
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described below.
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[Android SDK]: https://developer.android.com/studio/index.html
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#### Linux
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sudo apt install make gcc openjdk-8-jdk pkg-config meson zip \
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libavcodec-dev libavformat-dev libavutil-dev \
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libsdl2-dev libsdl2-net-dev
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#### Windows
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Install these packages:
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pacman -S mingw-w64-x86_64-make
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pacman -S mingw-w64-x86_64-gcc
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pacman -S mingw-w64-x86_64-pkg-config
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pacman -S mingw-w64-x86_64-meson
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pacman -S zip
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Java 8 is not available in MSYS2, so install it manually and make it available
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from the `PATH`:
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Java (>= 7) is not available in MSYS2, so if you plan to build the server,
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install it manually and make it available from the `PATH`:
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export PATH="$JAVA_HOME/bin:$PATH"
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### Build
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#### Mac OS
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Make sure your `ANDROID_HOME` variable is set to your Android SDK directory:
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Use [Homebrew] to install the packages:
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[Homebrew]: https://brew.sh/
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# runtime dependencies
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brew install sdl2 ffmpeg
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# build dependencies
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brew install gcc pkg-config meson zip
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Java (>= 7) is not available in Homebrew, so if you plan to build the server,
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install it manually and make it available from the `PATH`:
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export PATH="$JAVA_HOME/bin:$PATH"
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### Common steps
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Install the [Android SDK] (_Android Studio_), and set `ANDROID_HOME` to
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its directory. For example:
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[Android SDK]: https://developer.android.com/studio/index.html
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export ANDROID_HOME=~/android/sdk
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From the project root directory, execute:
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Then, build `scrcpy`:
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make build
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meson x --buildtype release --strip -Db_lto=true
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cd x
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ninja
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To run the build:
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You can test it from here:
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make run
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ninja run
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It is also pass arguments to `scrcpy` via `make`:
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Or you can install it on the system:
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make run ARGS="-p 1234"
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sudo ninja install # without sudo on Windows
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The purpose of this command is to execute `scrcpy` during the development.
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This installs two files:
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- `/usr/local/bin/scrcpy`
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- `/usr/local/share/scrcpy/scrcpy-server.jar`
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Just remove them to "uninstall" the application.
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### Test
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#### Prebuilt server
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To execute unit tests:
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Since the server binary, that will be pushed to the Android device, does not
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depend on your system and architecture, you may want to use the prebuilt binary
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instead: [`scrcpy-server.jar`](TODO).
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make test
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In that case, the build does not require Java or the Android SDK.
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The server-side tests require JUnit 4:
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Download the prebuilt server somewhere, and specify its path during the Meson
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configuration:
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sudo apt install junit4
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### Generate a release
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From the project root directory, execute:
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make release
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This will generate the application in `dist/scrcpy/`.
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meson x --buildtype release --strip -Db_lto=true \
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-Dprebuilt_server=/path/to/scrcpy-server.jar
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cd x
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ninja
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sudo ninja install
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## Run
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Plug a device, and from `dist/scrcpy/`, execute:
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_At runtime, `adb` must be accessible from your `PATH`._
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./scrcpy
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If everything is ok, just plug an Android device, and execute:
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scrcpy
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It accepts command-line arguments, listed by:
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scrcpy --help
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For example, to increase video bitrate to 8Mbps (default is 4Mbps):
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scrcpy -b 8M
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To limit the video dimensions (e.g. if the device is 2540×1440, but the host
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screen is smaller, or cannot decode such a high definition):
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scrcpy -m 1024
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If several devices are listed in `adb devices`, you must specify the _serial_:
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./scrcpy 0123456789abcdef
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scrcpy -s 0123456789abcdef
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To change the default port (useful to launch several `scrcpy` simultaneously):
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./scrcpy -p 1234
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## Shortcuts
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Other options are available, check `scrcpy --help`.
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| Action | Shortcut |
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| ------------------------------------- | -------------:|
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| switch fullscreen mode | `Ctrl`+`f` |
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| resize window to 1:1 (pixel-perfect) | `Ctrl`+`g` |
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| resize window to remove black borders | `Ctrl`+`x` |
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| click on `HOME` | `Ctrl`+`h` |
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| click on `BACK` | `Ctrl`+`b` |
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| click on `APP_SWITCH` | `Ctrl`+`m` |
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| click on `VOLUME_UP` | `Ctrl`+`+` |
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| click on `VOLUME_DOWN` | `Ctrl`+`-` |
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| click on `POWER` | `Ctrl`+`p` |
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| turn screen on | _Right-click_ |
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| enable/disable FPS counter (on stdout) | `Ctrl`+`i` |
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## Licence
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Copyright (C) 2018 Genymobile
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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