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

Dirk Meyer dmeyer at tzi.de
Mon Jul 22 17:56:01 CEST 2002


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.


Dischi




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