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

Carl Eugen Hoyos cehoyos at ag.or.at
Thu Aug 20 11:08:28 CEST 2009


Michael Niedermayer <michaelni <at> gmx.at> writes:

> > No, I just wonder what's the rationale behind those percentages
> 
> i guess, though dont know, that 75% worked after random trying ;)

Of course, I am sorry if that wasn't clear;-)

> besides as iam already here, could someone summarize what the PAFF
> issue in mplayer was exactly in fine technical detail.
> Iam asking because i remember it only halfway ATM and maybe we could
> find some solution if we spell out and read what exactly is the problem

(Surely not "fine technical detail", but I'll answer nonetheless)

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.

Carl Eugen

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




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