[gst-devel] how to use qtdemux to demux h264 stream from MP4?

[Jan Schmidt]

jp_liu wrote:
> Hello, gstreamer-devel
>  
> How to use qtdemux to demux h264 stream from MP4?
> The demuxed h264 stream looks have no startcodes before every NAL
> Unit. So, Some key information ( such as: SPS PPS ....) is missed. It
> caused my H264 decoder can not decode the frame which demuxed by qtdemux .
> How can I solve this problem?
> 

I think the information your decoder is looking for is the stuff
provided by the 'codec_data' in the caps. This is the header information
that quicktime stores and provides separately from the actual data stream.

Regards,
Jan.