mplayer playing 1080i60 video at half the speed (30fps)

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On Tue, 2009-12-08 at 17:49 +0000, Carl Eugen Hoyos wrote:
> Pasi K?rkk?inen <pasik <at> iki.fi> writes:
> 
> > Link to the file in question:
> > http://www.xen.org/media/Movies/XenSummitAsia09/2009-11-19-morning/Iandemo.MTS
> 
> Works fine with -demuxer lavf -nocorrect-pts

For low enough values of "fine". As a rule of thumb using
"-nocorrect-pts" together with "-demuxer lavf" will produce inaccurate
results (it could work right if the video used a codec with no frame
reordering, but in that case you'd never get any benefit from using it
either). It can keep the timing inaccuracies in the old svn code from
causing boundlessly increasing sync loss, but it will not give accurate
timing. Try for example enabling time display on OSD and see what
happens after about 20 seconds in the video.



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