|
|
Instruction of running webrtc_unity_plugin on Android Unity
|
|
|
|
|
|
1. On Linux machine, compile target webrtc_unity_plugin.
|
|
|
Checkout WebRTC codebase: fetch --nohooks webrtc_android
|
|
|
If you already have a checkout for linux, add target_os=”android” into .gclient file.
|
|
|
Run gclient sync
|
|
|
Run gn args out/Android, and again set target_os=”android” in the args.gn
|
|
|
Run ninja -C out/Android webrtc_unity_plugin
|
|
|
|
|
|
2. On Linux machine, build target libwebrtc_unity under webrtc checkout. This is the java code for webrtc to work on Android.
|
|
|
|
|
|
3. Copy libwebrtc_unity.jar and libwebrtc_unity_plugin.so into Unity project folder, under Assets/Plugins/Android folder.
|
|
|
|
|
|
4. Rename libwebrtc_unity_plugin.so to libjingle_peerconnection_so.so. This is hacky, and the purpose is to let the java code in libwebrtc_unity.jar to find their JNI implementations. Simultaneously, in your C# wrapper script for the native plugin libjingle_peerconnection_so.so, the dll_path should be set to “jingle_peerconnection_so”.
|
|
|
|
|
|
5. In the Unity Main Scene’s Start method, write the following code to initialize the Java environment for webrtc (otherwise, webrtc will not be able to access audio device or camera from C++ code):
|
|
|
|
|
|
#if UNITY_ANDROID
|
|
|
AndroidJavaClass playerClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
|
|
|
AndroidJavaObject activity = playerClass.GetStatic<AndroidJavaObject>("currentActivity");
|
|
|
AndroidJavaClass utilityClass = new AndroidJavaClass("org.webrtc.UnityUtility");
|
|
|
utilityClass.CallStatic("InitializePeerConncectionFactory", new object[1] { activity });
|
|
|
#endif
|
|
|
|
|
|
6. Compile the unity project into an APK, and decompile the apk using apktool that you can download from https://ibotpeaches.github.io/Apktool/
|
|
|
Run apktool d apkname.apk.
|
|
|
Then copy the AndroidManifest.xml in the decompiled folder to the Assets/Plugins/Android folder, and add two lines:
|
|
|
<uses-permission android:name="android.permission.RECORD_AUDIO" />
|
|
|
<uses-permission android:name="android.permission.CAMERA" />
|
|
|
|
|
|
The purpose of using apktool is to get a well-written android manifest xml file. If you know how to write manifest file from scratch, you can skip using apktool.
|
|
|
|
|
|
7. Compile the unity project into an APK again and deploy it to an android device.
|
