[vlc] Re: MPEG2 file incorrect time

[Laurent Aimar]

On Wed, Feb 02, 2005, Sigmund Augdal wrote:
> On Wed, Feb 02, 2005 at 09:40:21AM -0600, Rett D. Walters wrote:
> > Hi,
> > 
> > > Hi,
> > >
> > > I am transcoding files into MPEG2-PS format. For that I am
> > > using
> > > mencoder (which in fact uses ffmpeg). I choose the codec
> > > to be
> > > mpeg2video. The resulting file appears to be an MPEG2
> > > file, I can
> > > stream it and play it. There is however one thing which is
> > > not
> > > correct: the length reported by the movie players. E.g. a
> > > 1min file is
> > 
> > > recognized as a 6secods movie. This results in a fact that
> > > when I
> > 
> > I have seen this as well - can you tell me the command
> > line parms you are using to create the mpeg2-ps file? What
> > version of Mencoder are you using?  I was under the
> > impression that mencoders ps multiplexer was still
> > considered "beta".
> > 
> > > transcode such file into wmv (using Windows Media Encoder)
> > > the
> > > resulting file consists only of last 6 seconds of the
> > > movie. How can I
> > > fix the problem. I am transcoding on Linux (and this is
> > > necessary)
> > > Should I use another program. Maybe someone can provide me
> > > with a
> > > command line that generates the file I need.
> > 
> > Unfortunately I don't know of any other program other than
> > transcode that can do this, but my experience with
> > transcode  is that the quality is not as good as
> > ffmpeg/mencoder.
> Vlc can do it as well I think. To remux your file with vlc try the following:
> 
> vlc yourfile.mpg :sout=file/ps://newfile.mpg -I dummy vlc:quit
> 
> if vlc's mpeg ps muxer is better than mencoders then this could probably
> correct your file.
 I have some bad feelings about that ;)

 Anyway, I think the problem comes from a wrong rate(bitrate) indication in
the mpg produced by mencoder (it's just a guess).
(VLC doesn't do a better job, I think it sets it to 0)

-- 
fenrir

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