[MPlayer-users] Bug using ivtc with libavcodec mpeg2

D Richard Felker III dalias at aerifal.cx
Tue Apr 27 18:58:44 CEST 2004

On Mon, Apr 26, 2004 at 09:40:04PM -0300, Vi Mesq wrote:
> Hi,
> When using the ivtc filter to perform inverse telecine, MEncoder does not 
> duplicate frames when needed if the target is MPEG2, causing loss of sync 
> over time. MEncoder does show "1 duplicated frame" warning a frame was 
> duplicated (what seems to be OK when the 3:2 pattern is broken), but it 
> doesn't actually insert the duplicated frame unless the target is AVI (I 
> tested with ffv1). What made me suspect about the problem is this old 
> message in the list:

This is a general problem in mencoder... The A/V sync takes place
entirely in mencoder itself (and filters have no control over it).


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