[MPlayer-dev-eng] [RFC][PATCH]Workaround to play PAFF samples

Carl Eugen Hoyos cehoyos at ag.or.at
Mon Aug 31 01:19:27 CEST 2009


Carl Eugen Hoyos <cehoyos <at> ag.or.at> writes:

> All PAFF samples I know of fail with mplayer (-mc 0), meaning that A/V sync
> gets worse every second, no matter if correct-pts is used or not, with or
> without -fps 100 and I did not find a value for autosync that made a
> difference.
> All PAFF samples I have transcode fine with ffmpeg and play ok with ffplay (I
> know there are some that fail, but I have many and they can all be viewed and
> transcoded).
> 
> -mc 1 does of course not "fix" the problem (there is still a lot of clearly
> visible jitter), but it is a very useful workaround, so I propose to make it
> standard.

> PS: Am I the only one for whom playing ts files with -demuxer lavf fails
> reliably?

An update:
demuxer lavf should work now with MPEG transport streams.
Most PAFF samples (in MPEG ts) play fine with -demuxer lavf -nocorrect-pts, only
premiere-paff.ts (I don't know where it comes from, it shows a German soccer
match) needs -mc 1 (and -nocorrect-pts).

Should we make -nocorrect-pts standard? That would fix most samples with
-demuxer lavf. Or, even better, -nocorrect-pts -mc 1?

Carl Eugen




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