[vlc-devel] Re: mpeg2-ps transcode error of duration?

[Gildas Bazin]

On Friday 04 February 2005 08:33, Bart Kerver wrote:
> Laurent
> 
> >>AFAIK, this is related to the "fps" field being set to 0 by VLC's ps
> >>muxer. So, yes, it is a flow in VLC... not sure it is easy to fix...
> > 
> >  It's related to the bitrate field. The problem is that we don't know 
the
> > average bitrate (for the whole file) and thus we don't set a valid value
> > while muxing.
> >  (And anyway our muxer isn't really good).
> 
> Any particular reason why the MP4 muxer seems to do the job properly? In 
> the end I muxed mpv2 and mpa into an MP4 instead of a MPEG-PS container. 
> Basically this should give the same result but it doesn't ?!
> 

Simply because MP4/MOV files contain an index (written at the end of the 
muxing) that tells you the length of the file. MPEG PS/TS don't have such 
things.

--
Gildas

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