[FFmpeg-devel] [PATCH 1/3] swscale: don't assign range converters for float

Chen, Wenbin wenbin.chen at intel.com
Mon Nov 27 04:10:11 EET 2023


> > From: Niklas Haas <git at haasn.dev>
> >
> > This logic was incongruent with logic used elsewhere, where floating
> > point formats are explicitly exempted from range conversion. Fixes an
> > issue where floating point formats were not going through special
> > unscaled converters even when it was otherwise possible.
> > ---
> >  libswscale/swscale.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/libswscale/swscale.c b/libswscale/swscale.c
> > index 46ba68fe6a..a66db22767 100644
> > --- a/libswscale/swscale.c
> > +++ b/libswscale/swscale.c
> > @@ -534,7 +534,8 @@ av_cold void ff_sws_init_range_convert(SwsContext
> > *c)
> >  {
> >      c->lumConvertRange = NULL;
> >      c->chrConvertRange = NULL;
> > -    if (c->srcRange != c->dstRange && !isAnyRGB(c->dstFormat)) {
> > +    if (c->srcRange != c->dstRange && !isAnyRGB(c->dstFormat) &&
> > +        !isFloat(c->srcFormat) && !isFloat(c->dstFormat)) {
> >          if (c->dstBpc <= 14) {
> >              if (c->srcRange) {
> >                  c->lumConvertRange = lumRangeFromJpeg_c;
> > --
> > 2.42.0
> >
> 
> This patchset works for me. Thanks for your quick fixing.

Ping. When can this patchset be merged?

Thanks
Wenbin 
> 
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