[MPlayer-users] Re: DVD constant a/v mismatch (was DXR3 audio/video sync issues)

Steffen Barszus st_barszus at gmx.de
Mon Jul 22 22:51:11 CEST 2002


Am Montag, 22. Juli 2002 17:42 schrieb Dirk Meyer:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>
> Arpi wrote:
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> > Hi,
> >
> >> > > http://www.maven.de/code/index.html#vstrip
> >> >
> >> > Would be fine if mplayer can use some of that code. I put  a jpg
> >> > (vStrip-Screenshot-recognized-delay.jpg) on incoming there
> >>
> >> interesting. could you show the delays for teh first (video) streams?
> >
> > ok i did it, for the dvd with ~300ms delay:
> >
> > root at arpi:/usr/src/vStrip/vstrip# ./vstrip /9/VOB/stream.dump
> > vStrip - version 0.8f, by [maven] (maven at maven.de).
> >
> > Scanning for stream id's, press control-c to quit...
> > Found 0xE0 = Video 0 [PTS 0:00:00.367 @LBA 0]
> >   Width = 720
> >   Height = 576
> >   Aspect-ratio = [2] 4:3 display
> >   Frame-rate = [3] 25 fps
> > Found 0xBE = Padding [@LBA 116]
> > Found 0xBD = Private 1, sub 0x80 [PTS 0:00:00.287 @LBA 117]
> > Found 0xBD = Private 1, sub 0x20 [PTS 0:00:01.287 @LBA 310]
> >
> > Summary:
> > MPEG Packs = 35342
> > Private 1 packets = 1853, total bytes = 3739521
> >   Sub 0x20 packets = 4, total bytes = 5600 (delay 0:00:00.920)
> >   Sub 0x80 packets = 1849, total bytes = 3733921 (delay -0:00:00.080)
> > Padding packets = 244, total bytes = 235900
> > Video 0 packets = 33489, total bytes = 67578951
>
> There is another tool but it's Windows. Check DVD2AVI (GPL)
> http://arbor.ee.ntu.edu.tw/~jackei/dvd2avi/
>
> This tools names the audio files after the delay. If you have windows
> on your computer you can check with this tool if it reports 80ms too.

I know the whole delay thing, since I'm much more experienced in DVDrippin 
under win than Linux. Otherwise I didn't have problems on transcoding the 
last 3 DVDs. But atlantis I didn't tested right now, since I have work since 
3 weeks and it is very hard to work 8 hours a day , then you haven't done it 
since 3 years before *g ( student ;) ) 

Greets 

Steffen




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