The BSP supports tunneling of Hw accelerated codec.
Android uses feature-tunneled-playback
to check if tunneling is supported.
If yes It will try to configure tunneling.
How to implement or specify the android extension OMX.google.android.index.configureVideoTunnelMode
It just says for tunneled playback support the extension should be supported. How to expose this extension so that android will assume the tunneling is supported ?