[FFmpeg-devel] [PATCH v2] swscale/ppc: VSX-optimize yuv2rgb_full

[Lauri Kasanen]

On Wed, 20 Mar 2019 16:31:57 +0100
Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:

> 2019-03-20 16:06 GMT+01:00, Lauri Kasanen <cand at gmx.com>:
> > On Wed, 20 Mar 2019 15:51:20 +0100
> > Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> >
> >> 2019-03-20 15:06 GMT+01:00, Lauri Kasanen <cand at gmx.com>:
> >>
> >> > +            case AV_PIX_FMT_BGRA:
> >> > +                if (HAVE_POWER8 && cpu_flags & AV_CPU_FLAG_POWER8) {
> >> > +                    if (!c->needAlpha) {
> >> > +                        c->yuv2packed1 = yuv2bgrx32_full_1_vsx;
> >>
> >> If only non-alpha is supported, I would have expected the
> >> exact same function to also work for AV_PIX_FMT_BGR0.
> >
> > I'll check that, and RGB0 as well.

No need for changes it seems. swcale internals never see those zero
pixfmts:

libswscale/utils.c:    case AV_PIX_FMT_RGB0    : *format =
AV_PIX_FMT_RGBA   ; return 4;

- Lauri