Detect MPEG4/H264 I-Frame (IDR) in RTP stream

Question

I need to detect MPEG4 I-Frame in RTP packet. I know how to remove RTP header and get the MPEG4 frame in it, but I can\'t figure out how to identify the I-Frame.

Doe

Answer 1

0x000001b6: vop_start_code (keyframe, if the next two bits are zero) this is correct way for MPEG-4