# ScrCpy

This project displays screens of Android devices plugged on USB in live.


## Run

### Runtime requirements

This projects requires _FFmpeg_, _LibSDL2_ and _LibSDL2-net_.

#### Linux

Install the packages from your package manager. For example, on Debian:

    sudo apt install ffmpeg libsdl2-2.0.0 libsdl2-net-2.0.0


#### Windows

From [MSYS2]:

    pacman -S mingw-w64-x86_64-SDL2
    pacman -S mingw-w64-x86_64-SDL2_net
    pacman -S mingw-w64-x86_64-ffmpeg

[MSYS2]: http://www.msys2.org/


#### MacOS

TODO


## Build

The project is divided into two parts:
 - the server, running on the device (in `server/`);
 - the client, running on the computer (in `app/`).

The server is a raw Java project requiring Android SDK. It not an Android
project: the target file is a `.jar`, and a `main()` method is executed with
_shell_ rights.

The client is a C project using [SDL] and [FFmpeg], built with [Meson]/[Ninja].

The root directory contains a `Makefile` to build both parts.

[sdl]: https://www.libsdl.org/
[ffmpeg]: https://www.ffmpeg.org/
[meson]: http://mesonbuild.com/
[ninja]: https://ninja-build.org/


### Build requirements

Install the [Android SDK], the JDK 8 (`openjdk-8-jdk`), and the packages
described below.

[Android SDK]: https://developer.android.com/studio/index.html


#### Linux

    sudo apt install make gcc openjdk-8-jdk pkg-config meson zip \
                     libavcodec-dev libavformat-dev libavutil-dev \
                     libsdl2-dev libsdl2-net-dev


#### Windows

Install these packages:

    pacman -S mingw-w64-x86_64-make
    pacman -S mingw-w64-x86_64-gcc
    pacman -S mingw-w64-x86_64-pkg-config
    pacman -S mingw-w64-x86_64-meson
    pacman -S zip

Java 8 is not available in MSYS2, so install it manually and make it available
from the `PATH`:

    export PATH="$JAVA_HOME/bin:$PATH"


### Build

Make sure your `ANDROID_HOME` variable is set to your Android SDK directory:

    export ANDROID_HOME=~/android/sdk

From the project root directory, execute:

    make build

To run the build:

    make run

It is also pass arguments to `scrcpy` via `make`:

    make run ARGS="-p 1234"

The purpose of this command is to execute `scrcpy` during the development.


### Test

To execute unit tests:

    make test

The server-side tests require JUnit 4:

    sudo apt install junit4


### Generate a release

From the project root directory, execute:

    make release

This will generate the application in `dist/scrcpy/`.


## Run

Plug a device, and from `dist/scrcpy/`, execute:

    ./scrcpy

If several devices are listed in `adb devices`, you must specify the _serial_:

    ./scrcpy 0123456789abcdef

To change the default port (useful to launch several `scrcpy` simultaneously):

    ./scrcpy -p 1234

Other options are available, check `scrcpy --help`.