[*] 信令+设置布局

docs/WebRTC.md

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+# WebRTC
+
+本文档内容旨在独立编译`WebRTC`项目，非必需使用。
+
+## libwebrtc
+
+* https://webrtc.github.io/webrtc-org/native-code/android/
+* https://webrtc.github.io/webrtc-org/native-code/development/
+* https://webrtc.github.io/webrtc-org/native-code/development/prerequisite-sw/
+* https://www.chromium.org/developers/how-tos/install-depot-tools/
+
+国内镜像需要配置比较麻烦，建议直接按需购买能够访问外网的主机，用完直接释放，配置建议：
+
+* 内存`8G`
+* 四核`CPU`
+* 硬盘`100G`
+* 系统`Ubuntu 20.xx`
+* 宽带按需`100Mbps/s`（不要固定宽带）
+* 整个下载过程大概需要半到一个小时
+* 整个编译过程大概需要一到两个小时
+* 最痛苦的就是下载回来速度很慢
+
+```
+# 编译工具
+mkdir -p /data
+git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
+
+# 源码
+mkdir -p /data/webrtc
+cd /data/webrtc
+fetch --nohooks webrtc_android
+/data/depot_tools/gclient sync
+
+# 分支
+cd src
+git checkout -b m94 branch-heads/4606
+/data/depot_tools/gclient sync
+
+# 编译依赖
+./build/install-build-deps.sh
+./build/install-build-deps-android.sh
+source ./build/android/envsetup.sh
+
+# 编译配置：./tools_webrtc/android/build_aar.py
+---
+'target_os': 'android',
+'is_clang': True,
+'is_debug': False,
+'use_rtti': True,
+'rtc_use_h264': True,
+'use_custom_libcxx': False,
+'rtc_include_tests': False,
+'is_component_build': False,
+'treat_warnings_as_errors': False,
+'use_goma': use_goma,
+'target_cpu': _GetTargetCpu(arch)
+---
+
+# 编译项目
+./tools_webrtc/android/build_aar.py --build-dir ./out/release-build/
+# 指定CPU架构：--arch x86 x86_64 arm64-v8a armeabi-v7a
+
+# 生成静态库
+/data/depot_tools/autoninja -C ./out/release-build/x86 webrtc
+/data/depot_tools/autoninja -C ./out/release-build/x86_64 webrtc
+/data/depot_tools/autoninja -C ./out/release-build/arm64-v8a webrtc
+/data/depot_tools/autoninja -C ./out/release-build/armeabi-v7a webrtc
+
+# 打包
+zip -r webrtc.zip out libwebrtc.aar
+```
+
+[WebRTC](https://pan.baidu.com/s/1E_DXv32D9ODyj5J-o-ji_g?pwd=hudc)
+
+## libmediasoupclient
+
+https://mediasoup.org/documentation/v3/libmediasoupclient/installation/
+
+```
+# 编译
+cmake . -B build \
+-DCMAKE_BUILD_TYPE=Debug | Release \
+-DMEDIASOUPCLIENT_LOG_DEV=OFF \
+-DMEDIASOUPCLIENT_LOG_TRACE=OFF \
+-DMEDIASOUPCLIENT_BUILD_TESTS=OFF \
+-DLIBWEBRTC_INCLUDE_PATH:PATH=PATH_TO_LIBWEBRTC_SOURCES \
+-DLIBWEBRTC_BINARY_PATH:PATH=PATH_TO_LIBWEBRTC_BINARY
+make -C build
+make install -C build
+```