1、安装depot tools

git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git

然后把把depot_tools添加到环境变量中去

export PATH=path_to_depot_tools:$PATH

2.下载代码

创建一个工作目录

mkdir webrtc

cd  webrtc

下载代码

export GYP_DEFINES="OS=android"

fetch --nohooks webrtc_android

gclient sync

This will fetch a regular WebRTC checkout with the Android-specific parts added. Notice that the Android specific parts like the Android SDK and NDK are quite large (~8 GB), so the total checkout size will be about 16 GB. The same checkout can be used for both Linux and Android development since you can generate your Ninja project files in different directories for each build config.

3.编译代码

使用gn创建工程

在src目录下，执行下面命令

gn gen out/Debug --args='target_os="android" target_cpu="arm"'

You can specify a directory of your own choice instead of out/Debug, to enable managing multiple configurations in parallel.

• To build for ARM64: use target_cpu="arm64"
• To build for 32-bit x86: use target_cpu="x86"
• To build for 64-bit x64: use target_cpu="x64"

然后使用ninja编译代码

ninja -C out/Debug

编译完成后，就可以在out/Debug/apks目录下找到AppRTCMobile.apk了

2017年12月4日更新

Windows版本下载、编译

http://blog.csdn.net/wirelessdisplay/article/details/63263991