[x264-devel] Re: non mod16 res and alternative colorspaces for x264

[Måns Rullgård]

Czarek Kwasny said:
>
> I'd like to ask whether future x264 bulids are going to support mod 8
> resolutions. Right now it's only mod 16 compatible. Is it going to
> change? I'd would be great to have 1920x1080 resolution available for
> h.264 compression. I read about frame_cropping_flag in h.264
> documentation. Would it be possible to implement the function in further
> x264 bulids?

It's certainly possible.  It's even one of the things I've been contemplating
doing when I get some time to spare.  If you don't want to wait, feel free
to send a patch ;-)

> Also the second question: What about alternative colorspaces for High
> Profile? x264 supports lossless coding which is great for archival
> purposes, but it allows only YV12 as input, this makes the orginal
> material already dostorted because of the colorspace conversion. Would
> it be possible to make x264 support YUV 4:4:4 colorspace so the full
> information is stored?

Anything is possible.  The question is how much code needs to be changed.
In this case I'm afraid there might be a lot of code making implicit
assumptions about the color space.

-- 
Måns Rullgård
mru at inprovide.com

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