scrcpy/BUILD.md

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# Build scrcpy
Here are the instructions to build _scrcpy_ (client and server).
## Simple
If you just want to install the latest release from `master`, follow this
simplified process.
First, you need to install the required packages:
```bash
# for Debian/Ubuntu
sudo apt install ffmpeg libsdl2-2.0-0 adb wget \
gcc git pkg-config meson ninja-build libsdl2-dev \
libavcodec-dev libavdevice-dev libavformat-dev libavutil-dev
```
Then clone the repo and execute the installation script
([source](install_release.sh)):
```bash
git clone https://github.com/Genymobile/scrcpy
cd scrcpy
./install_release.sh
```
When a new release is out, update the repo and reinstall:
```bash
git pull
./install_release.sh
```
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To uninstall:
```bash
sudo ninja -Cbuild-auto uninstall
```
## Branches
### `master`
The `master` branch concerns the latest release, and is the home page of the
project on Github.
### `dev`
`dev` is the current development branch. Every commit present in `dev` will be
in the next release.
If you want to contribute code, please base your commits on the latest `dev`
branch.
## Requirements
You need [adb]. It is available in the [Android SDK platform
tools][platform-tools], or packaged in your distribution (`adb`).
On Windows, download the [platform-tools][platform-tools-windows] and extract
the following files to a directory accessible from your `PATH`:
- `adb.exe`
- `AdbWinApi.dll`
- `AdbWinUsbApi.dll`
The client requires [FFmpeg] and [LibSDL2]. Just follow the instructions.
[adb]: https://developer.android.com/studio/command-line/adb.html
[platform-tools]: https://developer.android.com/studio/releases/platform-tools.html
[platform-tools-windows]: https://dl.google.com/android/repository/platform-tools-latest-windows.zip
[ffmpeg]: https://en.wikipedia.org/wiki/FFmpeg
[LibSDL2]: https://en.wikipedia.org/wiki/Simple_DirectMedia_Layer
## System-specific steps
### Linux
Install the required packages from your package manager.
#### Debian/Ubuntu
```bash
# runtime dependencies
sudo apt install ffmpeg libsdl2-2.0-0 adb
# client build dependencies
sudo apt install gcc git pkg-config meson ninja-build libsdl2-dev \
libavcodec-dev libavdevice-dev libavformat-dev libavutil-dev
# server build dependencies
sudo apt install openjdk-11-jdk
```
On old versions (like Ubuntu 16.04), `meson` is too old. In that case, install
it from `pip3`:
```bash
sudo apt install python3-pip
pip3 install meson
```
#### Fedora
```bash
# enable RPM fusion free
sudo dnf install https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm
# client build dependencies
sudo dnf install SDL2-devel ffms2-devel meson gcc make
# server build dependencies
sudo dnf install java-devel
```
### Windows
#### Cross-compile from Linux
This is the preferred method (and the way the release is built).
From _Debian_, install _mingw_:
```bash
sudo apt install mingw-w64 mingw-w64-tools
```
You also need the JDK to build the server:
```bash
sudo apt install openjdk-11-jdk
```
Then generate the releases:
```bash
./release.sh
```
It will generate win32 and win64 releases into `dist/`.
#### In MSYS2
From Windows, you need [MSYS2] to build the project. From an MSYS2 terminal,
install the required packages:
[MSYS2]: http://www.msys2.org/
```bash
# runtime dependencies
pacman -S mingw-w64-x86_64-SDL2 \
mingw-w64-x86_64-ffmpeg
# client build dependencies
pacman -S mingw-w64-x86_64-make \
mingw-w64-x86_64-gcc \
mingw-w64-x86_64-pkg-config \
mingw-w64-x86_64-meson
```
For a 32 bits version, replace `x86_64` by `i686`:
```bash
# runtime dependencies
pacman -S mingw-w64-i686-SDL2 \
mingw-w64-i686-ffmpeg
# client build dependencies
pacman -S mingw-w64-i686-make \
mingw-w64-i686-gcc \
mingw-w64-i686-pkg-config \
mingw-w64-i686-meson
```
Java (>= 7) is not available in MSYS2, so if you plan to build the server,
install it manually and make it available from the `PATH`:
```bash
export PATH="$JAVA_HOME/bin:$PATH"
```
### Mac OS
Install the packages with [Homebrew]:
[Homebrew]: https://brew.sh/
```bash
# runtime dependencies
brew install sdl2 ffmpeg
# client build dependencies
brew install pkg-config meson
```
Additionally, if you want to build the server, install Java 8 from Caskroom, and
make it available from the `PATH`:
```bash
brew tap homebrew/cask-versions
brew install adoptopenjdk/openjdk/adoptopenjdk11
export JAVA_HOME="$(/usr/libexec/java_home --version 1.11)"
export PATH="$JAVA_HOME/bin:$PATH"
```
### Docker
See [pierlon/scrcpy-docker](https://github.com/pierlon/scrcpy-docker).
## Common steps
**As a non-root user**, clone the project:
```bash
git clone https://github.com/Genymobile/scrcpy
cd scrcpy
```
### Build
You may want to build only the client: the server binary, which will be pushed
to the Android device, does not depend on your system and architecture. In that
case, use the [prebuilt server] (so you will not need Java or the Android SDK).
[prebuilt server]: #option-2-use-prebuilt-server
#### Option 1: Build everything from sources
Install the [Android SDK] (_Android Studio_), and set `ANDROID_SDK_ROOT` to its
directory. For example:
[Android SDK]: https://developer.android.com/studio/index.html
```bash
# Linux
export ANDROID_SDK_ROOT=~/Android/Sdk
# Mac
export ANDROID_SDK_ROOT=~/Library/Android/sdk
# Windows
set ANDROID_SDK_ROOT=%LOCALAPPDATA%\Android\sdk
```
Then, build:
```bash
meson x --buildtype release --strip -Db_lto=true
ninja -Cx # DO NOT RUN AS ROOT
```
_Note: `ninja` [must][ninja-user] be run as a non-root user (only `ninja
install` must be run as root)._
[ninja-user]: https://github.com/Genymobile/scrcpy/commit/4c49b27e9f6be02b8e63b508b60535426bd0291a
#### Option 2: Use prebuilt server
- [`scrcpy-server-v1.18`][direct-scrcpy-server]
_(SHA-256: 641c5c6beda9399dfae72d116f5ff43b5ed1059d871c9ebc3f47610fd33c51a3)_
[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.18/scrcpy-server-v1.18
Download the prebuilt server somewhere, and specify its path during the Meson
configuration:
```bash
meson x --buildtype release --strip -Db_lto=true \
-Dprebuilt_server=/path/to/scrcpy-server
ninja -Cx # DO NOT RUN AS ROOT
```
The server only works with a matching client version (this server works with the
`master` branch).
### Run without installing:
```bash
./run x [options]
```
### Install
After a successful build, you can install _scrcpy_ on the system:
```bash
sudo ninja -Cx install # without sudo on Windows
```
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This installs three files:
- `/usr/local/bin/scrcpy`
- `/usr/local/share/scrcpy/scrcpy-server`
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- `/usr/local/share/man/man1/scrcpy.1`
You can then [run](README.md#run) _scrcpy_.
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### Uninstall
```bash
sudo ninja -Cx uninstall # without sudo on Windows
```