[MEncoder-users] 4x timing deflation for TV-to-lavc mpeg2video - multiplexer problem?

[Garry Boyer]

Okay, sent as "MPlayer/incoming/garryb/garryb-timedeflate.mpg".  The
file was cut off via head -c 3000000 so this sample isn't entirely
valid MPEG, but the time-deflation is still visible in Xine (haven't
checked dvdauthor on this sample).

BTW, I've seen conflicting advice on whether to use TSAF.  I've burned
DVDs successfully both with and without.

Also, remultiplexing it using mencoder and -oac/-ovc copy doesn't fix
the timing problem either (although it still plays perfectly).

On 1/22/07, Nico Sabbi <nsabbi at email.it> wrote:
> Garry Boyer wrote:
>
> > 'm capturing from TV, directly to DVD-compliant mpeg2video (via
> > lavc).  The resulting files have a four-times timing deflation
> > although playback is entirely correct -- my guess is this is a problem
> > with the muxer.
> >
> > To be specific, when I play it in Xine, the timer ticks one seconds
> > every four seconds of actual time.  Similarly, if I tell "dvdauthor"
> > to generate a chapter at 10 minutes, it will really occur at 40
> > minutes.  Here is my command:
> >
> >
> > sudo nice -n -10 mencoder \
> > -of mpeg -oac lavc=1 -ovc lavc=1 -mpegopts format=dvd \
> >  $INPUT \
> >  -vf pp=tn:0:100:10000,softskip,harddup -sws 1 \
> >  -srate 48000 \
> >  -af lavcresample=48000 \
> >  -ofps 30000/1001 \
> > -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:\
> > vbitrate=3000:keyint=25:acodec=ac3:abitrate=192:aspect=4/3:vstrict=0:\
> > me_range=192:ildct:ilme:nr=250:\
> > intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,\
> > 12,14,18,27,29,34,37,38,22,26,27,31,36,37,38,40,26,27,29,36,39,38,40,48,27,\
> >
> > 29,34,37,38,40,48,58,29,34,37,38,40,48,58,69,34,37,38,40,48,58,69,79\
> > :inter_matrix=16,18,20,22,24,26,28,30,18,20,22,24,26,28,30,32,20,22,24,26,\
> >
> > 28,30,32,34,22,24,26,30,32,32,34,36,24,26,28,32,34,34,36,38,26,28,30,32,34,\
> >
> > 36,38,40,28,30,32,34,36,38,42,42,30,32,34,36,38,40,42,44 \
> >  -o "$OUTFILE"
> >
>
> upload a sample to incoming and post the filename, please
>
>
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