On Tue, May 31, 2022 at 7:17 PM Ronald S. Bultje <rsbul...@gmail.com> wrote:
> Hi,
>
> On Thu, May 19, 2022 at 4:42 PM Mohammad Izadi <
> izadi-at-google....@ffmpeg.org> wrote:
>
> > ffmpeg support YCOCG (YCOCG=YCGCO). However, vf_colorspace is only
> support
> > YCGCO as input. Added YCOCG to the inputs.
> > ---
> > libavfilter/vf_colorspace.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/libavfilter/vf_colorspace.c b/libavfilter/vf_colorspace.c
> > index 3c8b3b20eb..bccd04528e 100644
> > --- a/libavfilter/vf_colorspace.c
> > +++ b/libavfilter/vf_colorspace.c
> > @@ -906,6 +906,7 @@ static const AVOption colorspace_options[] = {
> > ENUM("smpte170m", AVCOL_SPC_SMPTE170M, "csp"),
> > ENUM("smpte240m", AVCOL_SPC_SMPTE240M, "csp"),
> > ENUM("ycgco", AVCOL_SPC_YCGCO, "csp"),
> > + ENUM("ycocg", AVCOL_SPC_YCOCG, "csp"),
> > ENUM("gbr", AVCOL_SPC_RGB, "csp"),
> > ENUM("bt2020nc", AVCOL_SPC_BT2020_NCL, "csp"),
> > ENUM("bt2020ncl", AVCOL_SPC_BT2020_NCL, "csp"),
> > --
> > 2.36.1.124.g0e6072fb45-goog
> >
>
> Could you elaborate on why you think AVCOL_SPC_YCGCO might be missing from
> the LumaCoefficients table? Is this a typo/mixup? Should it be added?
>
from pixfmt.h
AVCOL_SPC_YCGCO = 8, ///< used by Dirac / VC-2 and H.264 FRext,
see ITU-T SG16
AVCOL_SPC_YCOCG = AVCOL_SPC_YCGCO,
this input option seems redundant, in which use case do you strictly need
it?
thanks
--
Vittorio
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