Use MediaCodec for H264 streaming

Question

I\'m currently trying to use Android as a Skype endpoint. At this stage, I need to encode video into H.264 (since it\'s the only format supported by Skype) and encapsulate it wi

Answer 1

UPDATE
I was finally able to create proper RTP packages from the h264 frames. Here's what you have to keep in mind (it's actually quite simple):

The encoder does create NAL headers for each frame. But it returns each frame as a h264 bytestream. This means that each frame starts with three 0-bytes and a 1-byte. All you have to do is remove those start prefixes, and put the frame into a RTP packet (or split them up using FU-As).

Now to your questions:

I cannot find a way to store its raw data into a buffer before encoding. Is addCallbackBuffer suited for this?

You should use camera.setPreviewCallback(...), and add each frame to the encoder.

I cannot find a lot of documentation about MediaCodec (since it's fairly new). Anyone who has a solid tutorial?

This should be a good introduction as to how the MediaCodec works. http://dpsm.wordpress.com/2012/07/28/android-mediacodec-decoded/

Lastly: any recommendations on RTP libraries?

I'm using jlibrtp which gets the job done.