Caps for CIE 1931 XYZ color space for HDR processing

[Tim-Philipp Müller]

On Sat, 2011-11-05 at 10:48 -0400, Josh Doe wrote:

> I'm interested in processing HDR images, and a new library libhdr
> (derived from pfstools) has just started, in order to provide HDR
> processing including tone mapping. They use the XYZ color space (CIE
> 1931), so I'd like to define caps for this. I'm not sure if there's
> interest in this colorspace, but perhaps I could at least get some
> feedback on this.
> 
> video/x-raw-xyz
> width = (int) [1, 2147483647]
> height = (int) [1, 2147483647]
> endianness = (int) BIG_ENDIAN, LITTLE_ENDIAN
> depth = (int) 16, 32, 64, 128
> luminance = (string) "relative", "absolute", "display"
> channel_order = (string) "XYZ", "XYZA", "ZYX", "Y", "YA", ...
> 
> Here's the PFS file format spec:
> http://www.mpi-inf.mpg.de/resources/pfstools/pfs_format_spec.pdf

Would be great if you could also have a look at how things are done in
0.11, to make sure it can accommodate your use case:

http://cgit.freedesktop.org/gstreamer/gst-plugins-base/tree/gst-libs/gst/video/video.h?h=0.11

 Cheers
  -Tim