On Wed, Nov 16, 2011 at 02:43, Yingzhou Zhang <zhang...@gmail.com> wrote: > Hey guys,here is one simple question: how do I obtain sps and pps from H264 > stream(over RTP).I know through header & 0x1f==7 || header & 0x1f ==8 to > determine them,but what about their length?
As any other NAL unit, the size is either part of its header, or should be determined from the bitstream. > Plus how to use them to "init" decoder? You are supposed to send these two NAL units with the first I-frame (just before its first data NAL), which normally is simply the first frame you send to the decoder. In principle, any I-frame may have these two to change the stream settings on the fly. > I have been googled around,got a little confused,thanks for your help and > some code example would be appreciated!! > Cheers.... > --------------------- > Best Regards Good luck, Alex Cohn _______________________________________________ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user
