There is a 'native-media' project in NDK samples, in which it calls OMX functions in C level to do the video decode and play stuff, but it seems that NDK doesn't support encode of OMX now, is that true?
Besides, I also find this link. It seems that people are talking about use OMX to do video encode. But I can't find more information about OMX encode in android. Does anyone know about that?