[MEncoder-users] Re: x264 lossless, or is it?
ods15 at ods15.dyndns.org
Mon Dec 5 21:44:33 CET 2005
On Mon, Dec 05, 2005 at 08:09:56PM +0000, Aleksandar Uzelac wrote:
> Rich Felker <dalias <at> aerifal.cx> writes:
> > Of course it's not. You've converted an RGB image to 4:2:0-subsampled
> > YUV (lossy conversion), compressed _that_ image losslessly,
> > decompressed that image, and then converted it back to RGB (lossy).
> i fully understand what you are saying. i made similar statement to that
> effect in this very thread.
> do you know if x264 supports formats other then YUV?
> > If you want lossless compression of RGB images, use a codec that works
> > in RGB space without chroma subsampling.
> i know only one codec that works in RGB without chroma subsampling, RGB
> uncompressed. can you recomend any other?
> or should i try to modify my PNGs to some YUV based picture? is there any
> picture format that supports YUV?
JPG I think?...
Maybe you should try MPNG :) it's basically just -ovc copy of 'mf://*.png'
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