[Mp4-tech] H264 RTP Timestamp

[Alex]

Dave, 
What if the system does not use any inrmediate file
format structure ? How to reconstruct 32 bit value
timestamp from SEI message structure ? 
Thanks. 
--- Dave Singer <singer apple.com> wrote:
> At 15:51  -0700 20/10/06, Jerry Johns wrote:
> >Hello,
> >           I'm currently in the process of writing
> a H264 packetizer, 
> >and I'm encountering some difficulty composing the
> RTP timestamps; 
> >in the H264 sample vids I've had, there have been
> samples which
> >Had SEI messages, indicating a picture_timing msg
> which means I can 
> >extract the timing info (is the timing a PTS? Where
> does the 
> >reference 90khz come from?) - I've also had samples
> which don't have 
> >an SEI, (just parameter sets and slices), in which
> case, how do I 
> >compose the 32-bit timestamp?
> 
> The system that the stream is in is probably
> carrying the timing in 
> that case (e.g. the mp4 file format).
> 
> >
> >Thank you
> >
> >_______________________________________________
> >NOTE: Please use clear subject lines for your
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> 
> 
> -- 
> David Singer
> Apple Computer/QuickTime>
_______________________________________________
> NOTE: Please use clear subject lines for your posts.
> Include [audio, [video], [systems], [general] or
> another apppropriate identifier to indicate the type
> of question you have.
> 
> Note: Conduct on the mailing list is subject to the
> Antitrust guidelines found at
http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php
--
Regards, 
Alex
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