webrtc代码下载编译

桃扇骨 2022-09-10 07:17 253阅读 0赞

### 代码下载编译 ###

#### 首先安装depot tools ####

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

$ fetch --nohooks webrtc
    Running: gclient root
    Running: gclient config --spec 'solutions = [
      {
        "name": "src",
        "url": "https://webrtc.googlesource.com/src.git",
        "deps_file": "DEPS",
        "managed": False,
        "custom_deps": {},
      },
    ]
    '
    Running: gclient sync --nohooks --with_branch_heads
    
    ________ running 'git -c core.deltaBaseCacheLimit=2g clone --no-checkout --progress https://webrtc.googlesource.com/src.git /home/hui/data/webrtc/_gclient_src_0t7ba_rt' in '/home/hui/data/webrtc'
    Cloning into '/home/hui/data/webrtc/_gclient_src_0t7ba_rt'...
    remote: Sending approximately 314.44 MiB ...
    remote: Total 387724 (delta 287364), reused 387724 (delta 287364)
    Receiving objects: 100% (387724/387724), 314.44 MiB | 37.77 MiB/s, done.
    Resolving deltas: 100% (287364/287364), done.

通过fetch获取webrtc和直接git clone是一样的。

#### 安装依赖 ####

cd src
    ./build/install-build-deps.sh

#### 生成Ninja工程文件 ####

$ gn gen out/Default
    Done. Made 1466 targets from 294 files in 425ms

#### 编译 ####

ninja -C out/Default
    ninja: Entering directory `out/Default'
    [1196/6440] CXX obj/net/dcsctp/packet/dcsctp_packet_unittests/init_chunk_test.o
    [4625/6440] CXX obj/api/libjingle_peerconnection_api/sctp_transport_interface.o
    [6440/6440] STAMP obj/default.stamp

#### 编译AppRTCMobile ####

$ ninja -C out/Default AppRTCMobile
    ninja: Entering directory `out/Default'
    ninja: error: unknown target 'AppRTCMobile'

> 这个是因为fetch的时候选择的分支不是webrtc\_android

### 重新拉代码编译AppRTCMobile ###

$ mkdir webrtc_android
    $ cd webrtc_android
    $ fetch --nohooks webrtc_android
    $ gclient sync
    $ ./build/install-build-deps.sh
    $ ./build/install-build-deps-android.sh
    $ source build/android/envsetup.sh
    $ gn gen out/Debug --args='target_os="android" target_cpu="arm64"'
    $ ninja -C out/Debug AppRTCMobile
    ninja: Entering directory `out/Debug'
    [4089/4089] STAMP obj/examples/AppRTCMobile.stam

默认fetch的webrtc代码后gn gen会报错

$ gn gen out/Debug --args='target_os="android" target_cpu="arm64"'
    ERROR at //build/config/android/internal_rules.gni:206:21: Can't load input file.
              deps += [ "$_dep_label$build_config_target_suffix" ]
                        ^---------------------------------------
    Unable to load:
      /home/hui/data/webrtc/src/third_party/androidx/BUILD.gn
    I also checked in the secondary tree for:
      /home/hui/data/webrtc/src/build/secondary/third_party/androidx/BUILD.gn

> 原因是webRTC源码，有RTC web的，是默认的，也有RTC android的，还有RTC ios的，默认拉取了web，target\_os指定为android就报错了。

### 参考 ###

*  webRTC Android源码拉取与编译与运行  
    `https://blog.csdn.net/newchenxf/article/details/116302993`