[MEncoder-users] DVD with vfr av-sync problem

[Munzuk]

El Miércoles, 11 de Julio de 2007, Nico Sabbi escribió:
> Munzuk wrote:
> >El Miércoles, 11 de Julio de 2007, Ken escribió:
> >>On 7/10/07, Munzuk <munzuk at ono.com> wrote:
> >>>Hi,
> >>>I'm trying to encode a DVD with vfr (24/30 fps) and I get some AV-sync
> >>>problems (about 200-300 ms delay), it seems to affect only some scenes.
> >>>
> >>>I tried mencoder 1.0pre8 and 1.0rc1
> >>
> >>Those versions are ancient.  Use svn.
> >
> >thanks, but no luck, the latest snapshot has the same behavior.
>
> search the ML archive: recently there was  a similar thread with some
> solutions
>
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Found 3 similar threads last month, none helped:
1:
-vf harddup 
2:
-oac pcm -ovc copy -ofps 30000/1001
3:
mencoder -fps 30000/1001 -aid 129 -ovc lavc -oac copy -lavcopts vcodec=mpeg4 
1.VOB -o 1.AVI

The problems come after this (the duplicated frames con be avoided with ofps 
24000/1001), about 0,5 seconds at 30fps
.
.
.
Pos: 166.3s   3998f ( 2%) 59.54fps Trem:  38min 1675mb  A-V:-0.009 [818:1536]
1 duplicate frame(s)!
Pos: 166.5s   4002f ( 2%) 59.57fps Trem:  38min 1675mb  A-V:-0.018 [817:1536]
1 duplicate frame(s)!
Pos: 166.6s   4004f ( 2%) 59.58fps Trem:  38min 1673mb  A-V:-0.019 [817:1536]
demux_mpg: 30000/1001fps NTSC content detected, switching framerate.
Warning! FPS changed 23.976 -> 29.970  (-5.994005) [4]  A-V:-0.018 [817:1536]
Pos: 166.9s   4014f ( 2%) 59.64fps Trem:  38min 1673mb  A-V:0.003 [815:1536]]
1 duplicate frame(s)!
Pos: 167.1s   4019f ( 2%) 59.65fps Trem:  38min 1672mb  A-V:0.020 [815:1536]
1 duplicate frame(s)!
Pos: 167.2s   4021f ( 2%) 59.65fps Trem:  38min 1672mb  A-V:0.026 [814:1536]
demux_mpg: 24000/1001fps progressive NTSC content detected, switching 
framerate.

1 duplicate frame(s)!
Pos: 167.5s   4028f ( 2%) 59.66fps Trem:  38min 1673mb  A-V:0.018 [814:1536]
1 duplicate frame(s)!
Pos: 167.7s   4032f ( 2%) 59.66fps Trem:  38min 1672mb  A-V:0.027 [814:1536]
1 duplicate frame(s)!
.
.
.

:'(