On Wed, Dec 26, 2012 at 6:35 AM, Brian Chi <[email protected]> wrote: > Yes, I read all frames, most return value of function > "ff_avc_parse_nal_units" is 0. > i think maybe the problem is about NAL, will the NAL layer of H264 frame be > detached in the function "av_read_frame". > So in the "ff_avc_parse_nal_units", it can't find start code(0x000001), and > discard the frame.
Packets in mp4 are not stored in annex B format, you will never see 0x000001 start codes there. See http://msdn.microsoft.com/en-us/library/windows/desktop/dd757808(v=vs.85).aspx _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
