[FFmpeg-devel] [PATCH] swscale/ppc: VSX-optimize yuv2rgb_full_X

[Lauri Kasanen]

On Mon, 1 Apr 2019 13:37:32 +0300
Lauri Kasanen <cand at gmx.com> wrote:

> ./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 \
>                 -s 1200x720 -f null -vframes 100 -pix_fmt $i -nostats \
>                 -cpuflags 0 -v error -
>
> 32-bit mul, power8 only.
>
> ~6.4x speedup:
>
> rgb24
>  214278 UNITS in yuv2packedX,   16384 runs,      0 skips
>   33249 UNITS in yuv2packedX,   16384 runs,      0 skips
> bgr24
>  214616 UNITS in yuv2packedX,   16384 runs,      0 skips
>   33233 UNITS in yuv2packedX,   16384 runs,      0 skips
> rgba
>  214517 UNITS in yuv2packedX,   16384 runs,      0 skips
>   33271 UNITS in yuv2packedX,   16384 runs,      0 skips
> bgra
>  214973 UNITS in yuv2packedX,   16384 runs,      0 skips
>   33397 UNITS in yuv2packedX,   16384 runs,      0 skips
> argb
>  214613 UNITS in yuv2packedX,   16384 runs,      0 skips
>   33310 UNITS in yuv2packedX,   16384 runs,      0 skips
> bgra
>  214637 UNITS in yuv2packedX,   16384 runs,      0 skips
>   33330 UNITS in yuv2packedX,   16384 runs,      0 skips
>
> Signed-off-by: Lauri Kasanen <cand at gmx.com>
> ---
>  libswscale/ppc/swscale_vsx.c | 160 +++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 160 insertions(+)

Applying.

- Lauri