[MPlayer-users] Lossless h264 Encoding

[Loren Merritt]

On Wed, 24 Oct 2007, Fluxid wrote:

> Anyway, is mencoder (x264) capable of encoding completely lossless 
> h.264 video? As far i remember, x264 only encodes in 4:2:0 chroma 
> format, so chroma is subsampled (pixelized)...

That is completely lossless. It's just lossless encoding of 4:2:0 data.

x264 also doesn't support RGB, HSV, LAB, XYZ, alpha, float, or bitdepth>8. 
If you have data in any of those formats, x264 can't deal with it at all, 
let alone losslessly.

--Loren Merritt