Question: Using another video source instead of device camera

[khallaghi]

I want to use another video source and stream it using libstreaming but as I understand there is no way to change the source video and libstreaming automatically use device camera as source video.
to be more specific I have an external camera that I can get video as a raw ByteBuffer and I wanted to stream it over network.

I call this function in onCreate

private void initListener() {

        hdCameraManager = (HDCameraManager) getUnitManager(FuncConstant.HDCAMERA_MANAGER);

        Log.i(TAG, "Now in initListener start");

        hdCameraManager.setMediaListener(new MediaStreamListener() {
            @Override
            public void getVideoStream(int i, byte[] bytes, int i1, int i2) {
                drawVideoSample(ByteBuffer.wrap(bytes));
            }

            @Override
            public void getAudioStream(int i, byte[] bytes) {

            }
        });
    }

it's not important what is HdCameraManager and other stuff the only important thing is in getVideoStream function I get the raw video data as bytes and wrap it up in a ByteBuffer and pass it to another function.

@Override
 public void getVideoStream(int i, byte[] bytes, int i1, int i2) {
        drawVideoSample(ByteBuffer.wrap(bytes));
}

so How can I be able to send this raw stream to external encoder like Wowza or FFmpeg using Libstreaming?
Should I use MediaCodec and other stuff to make it through?
Should I change the libstreaming source code to make it happen?
Thanks a lot.