How to Stream H.264 format format from a recorded video, using MediaCodec and Opengl, in Android Java?

Hello,
I'm trying to create an Android application which needs to process H.264 and stream it in Opengl surface. Present I don't have any idea on how to start with this, so any resources which need to be studied will helpful for me.

So can please give me some resources, and examples in Android JAVA which contains MediaCodec and Opengl to stream H.264?

Regards,
Nolan