[MPlayer-dev-eng] Re: [RFC] h264 over rtsp without AVParser

Uoti Urpala uoti.urpala at pp1.inet.fi
Fri Mar 9 16:56:07 CET 2007


On Fri, 2007-03-09 at 15:12 +0000, Carl Eugen Hoyos wrote:
> Uoti Urpala <uoti.urpala <at> pp1.inet.fi> writes:
> > The current timing code won't work if you feed it the same timestamp
> > multiple times like that. I think it's probably best to make the demuxer
> > set the timestamps to MP_NOPTS_VALUE except for one (by detecting
> > identical timestamps if it doesn't recognize frame boundaries otherwise)
> > and change the timing code to ignore those.
> 
> Identical timestamps for several NALs belonging to the same frame: Works with
> -correct-pts (except - maybe! - fps =<8: I only tested one stream with low fps!)

No it doesn't work really. Maybe you just had streams where the breakage
was not noticeable (no B frames for example). Frame rate shouldn't
matter.

> Timestamp of first of several NALs belonging to the same frame unchanged,
> remaining set to MP_NOPTS_VALUE: Does not work with -correct-pts - I get "pts
> value from demuxer MISSING" and the video plays too fast.

As I wrote above "and change the timing code to ignore those" - it
hasn't been changed that way yet.




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