webrtc源码的下载-对应ios-android-linux-mac-window等平台的编译文档

# Build Native Plugin This guide will cover building and deploying the native plugin `com.unity.webrtc` depends on. ## Developing environment Install dependencies to make development environment. ### Windows On windows, first, the build process use the **clang** compiler. To install clang, see [MSDN](https://docs.microsoft.com/en-us/cpp/build/clang-support-msbuild?view=msvc-170). And [chocolatey](https://chocolatey.org/) is used to install. ```powershell # Install CUDA choco install cuda --version=10.1 # Install Windows SDK # WARNING: If you have versions of Windows SDK earlier than Version 1809, # compiling the plugin will fail. Make sure to uninstall earlier versions. choco install -y vcredist2010 vcredist2013 vcredist140 windows-sdk-10-version-1809-all # Install Vulkan choco install -y wget wget https://vulkan.lunarg.com/sdk/download/1.1.121.2/windows/VulkanSDK-1.1.121.2-Installer.exe -O C:/Windows/Temp/VulkanSDK.exe C:/Windows/Temp/VulkanSDK.exe /S # Install CMake 3.18.0 choco install cmake -y --version 3.18.0 # Install 7zip (used to extract Google's webrtc library after download) choco install 7zip # Setting up environment variables setx CUDA_PATH "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.1" /m setx VULKAN_SDK "C:\VulkanSDK\1.1.121.2" /m ``` ### Ubuntu The below commands shows the build process developing environment on Ubuntu `18.04` or `20.04`. ```bash # Install libc++-dev libc++abi-dev clang vulkan-utils libvulkan1 libvulkan-dev # Ubuntu `18.04` sudo apt install -y libc++-10-dev libc++abi-10-dev clang-10 vulkan-utils libvulkan1 libvulkan-dev # Ubuntu `20.04` sudo apt install -y libc++-dev libc++abi-dev clang vulkan-utils libvulkan1 libvulkan-dev # Install freeglut3-dev sudo apt update sudo apt install -y freeglut3-dev # Install CUDA SDK sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/7fa2af80.pub wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/cuda-repo-ubuntu1804_10.1.243-1_amd64.deb sudo dpkg -i cuda-repo-ubuntu1804_10.1.243-1_amd64.deb sudo apt update sudo apt install -y cuda # Install CMake 3.18.0 sudo apt install -y libssl-dev sudo apt purge -y cmake wget https://github.com/Kitware/CMake/releases/download/v3.18.0/cmake-3.18.0.tar.gz tar xvf cmake-3.18.0.tar.gz cd cmake-3.18.0 ./bootstrap && make && sudo make install ``` ### macOS On macOS, [homebrew](https://brew.sh/) is used to install CMake. XCode version **11.0.0 or higher** is used but **Xcode 12 would not work well**. ```bash # Install CMake brew install cmake ``` ### iOS On macOS, [homebrew](https://brew.sh/) is used to install CMake. XCode version **11.0.0 or higher** is used but **Xcode 12 would not work well**. ### Android On Ubuntu (**WSL2** on Windows is also working well), ```bash # Install Android NDK r21b wget https://dl.google.com/android/repository/android-ndk-r21b-linux-x86_64.zip # Set Android NDK root path to `ANDROID_NDK` environment variable echo "export ANDROID_NDK=~/android-ndk-r21d/" >> ~/.profile # Install CMake 3.18.0 sudo apt install -y libssl-dev sudo apt purge -y cmake wget https://github.com/Kitware/CMake/releases/download/v3.18.0/cmake-3.18.0.tar.gz tar xvf cmake-3.18.0.tar.gz cd cmake-3.18.0 ./bootstrap && make && sudo make install # Install pkg-config, zip sudo apt install -y pkg-config zip ``` ## Build plugin To build plugin, you need to execute command in the `BuildScripts~` folder. - [BuildScripts~/build_plugin_android.sh](../BuildScripts~/build_plugin_android.sh) - [BuildScripts~/build_plugin_mac.sh](../BuildScripts~/build_plugin_mac.sh) - [BuildScripts~/build_plugin_ios.sh](../BuildScripts~/build_plugin_ios.sh) - [BuildScripts~/build_plugin_linux.sh](../BuildScripts~/build_plugin_linux.sh) - [BuildScripts~/build_plugin_win.cmd](../BuildScripts~/build_plugin_win.cmd) - Note: If you encounter `LNK1120`, `LNK2001` or `LNK2019` errors while running this build script, it's possible that you may need to open `Plugin~/build64/webrtc.sln` and build from within Visual Studio 2019 instead. You can also use it for development. ([#441](https://github.com/Unity-Technologies/com.unity.webrtc/issues/441)) Alternatively, after the script has been run, a project ready for your IDE or other build tools is ready for you to use/build with (the name of the folder differs based on the target platform, check the script for more details). ### Deploying the Plugin When you run the build, `webrtc.dll` will be placed in `Packages\com.unity.webrtc\Runtime\Plugins\x86_64`. You should then be able to verify the following settings in the Unity Inspector window. **WARNING:** If "Load on startup" is not ticked, your editor will crash when running your project. This may become unticked after you make a change to the plugin. ([#444](https://github.com/Unity-Technologies/com.unity.webrtc/issues/444)) <img src="../Documentation~/images/inspector_webrtc_plugin.png" width=400 align=center> ## Debug The `WebRTC` project properties must be adjusted to match your environment in order to build the plugin. Set the Unity.exe path under `Command` and the project path under `Command Arguments`. Once set, during debugging the Unity Editor will run and breakpoints will be enabled. <img src="../Documentation~/images/command_config_vs2017.png" width=600 align=center>