[FFmpeg-devel] [PATCH 2/3] vf_colorspace: Add support for ycgco color space
Ronald S. Bultje
rsbultje at gmail.com
Sun Oct 30 15:14:03 EET 2016
On Sun, Oct 30, 2016 at 3:07 AM, Vittorio Giovara <
vittorio.giovara at gmail.com> wrote:
> Signed-off-by: Vittorio Giovara <vittorio.giovara at gmail.com>
> This is a little hackish, not sure how to represent the matrix otherwise.
Haha :) I have to admit I hadn't put much thought into YCgCo yet. It's a
little hacky but I guess it's OK...
I think the primary reason some people - at some point in ancient history,
certainly not today - might have cared about YCgCo is because the
conversion between RGB and YCgCo is so trivial. For example, YCgCo to RGB
is two butterflies (an interleaved add/sub pair), which is incredibly
appealing from a performance point of view. But we're not using that
I'm not saying it's bad, and it's probably totally irrelevant, especially
given how insignificant YCgCo is anyway, but it's worth noting.
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