H264 without ffmeg

edit

In order to get an h264 stream, I'm using a simple android library (wich is working well enough)

I send the decoded stream to a surface view

mRtspClient = new RtspClient(Video_H264);
mRtspClient.setSurfaceView(mSurfaceView);

Can I extract a Mat from the MediacCodec Buffers directly ?

opencv 4.0.1 android sdk28