Custom video source for WebRTC on Android

Question

Overview

I would like to use a custom video source to live stream video via WebRTC Android implementation. If I understand correctly, existing implementation only supp

Answer 1

There are two possible solutions to this problem:

1. Implement custom VideoCapturer and create VideoFrame using byte[] stream data in onReceive handler. There actually exists a very good example of FileVideoCapturer, which implements VideoCapturer.
2. Simply construct VideoFrame from NV21Buffer, which is created from our byte array stream data. Then we only need to use our previously created VideoSource to capture this frame. Example:

public void onReceive(byte[] videoBuffer, int size, int width, int height) {
    long timestampNS = TimeUnit.MILLISECONDS.toNanos(SystemClock.elapsedRealtime());
    NV21Buffer buffer = new NV21Buffer(videoBuffer, width, height, null);

    VideoFrame videoFrame = new VideoFrame(buffer, 0, timestampNS);
    videoSource.getCapturerObserver().onFrameCaptured(videoFrame);

    videoFrame.release();
}