[MPlayer-users] xvid

Loren Merritt lorenm at u.washington.edu
Thu Apr 15 01:36:59 CEST 2004

On Wed, 14 Apr 2004, Jack wrote:
> D Richard Felker III wrote:
>>>The movies involved are "Haibane Renmei" and "Neko no Ongaeshi", which are
>>>animated at around 10fps (variable framerate), and contain not all that
>>>much action. At quant 2, Haibane is 820 kbit/s, and Neko is 910 kbit/s.
>>>Still, frames at quant 2 are not perfect, and they look much better with
>>BTW, re: 10 fps... aren't these files telecined in some sense? Or not?
>I've got the same DVDs.  No they aren't, they just have A LOT of
>duplicate frames.  2 out of every 3 frames are usually duplicates,
>except when the scene is panning.  Sometimes even more.  If mencoder
>supported a good variable frame rate format, you could use the decimate
>filter on most animation with fantastic results.  But I'm not going to
>hold my breath for that.

The problem isn't mencoder or the muxer, it's the codec. I filter with
Avisynth and mux to Matroska (both support vfr). But if framerate varies
much more than 24 to 30, then it messes up rate control in all of
ffmpeg, xvid, and divx.

--Loren Merritt

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