[MPlayer-users] Loss-less AVI

D Richard Felker III dalias at aerifal.cx
Sat Oct 18 01:05:27 CEST 2003


On Fri, Oct 17, 2003 at 10:00:49AM +0200, Andreu Escudero wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> > huffyuv cannot be lossless, since the original video is rgb, and
> > colorspace conversion is not one-to-one. Not to mention the 4:2:2 or
> > 4:2:0 downsampling...
> 
> Of course the colorspace conversion is not one-to-oe, but the original
> video is not rgb. It's yuv by it's very nature.

No. The original is a sequence of png files with 1-pixel-wide lines,
which will lose a LOT when converting to 4:2:0 if any of the lines are
colored! RTFt! (t=thread :)

Rich



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