[FFmpeg-devel] [PATCH v6] libswscale/ppc: VSX-optimize 9-16 bit yuv2planeX

[Lauri Kasanen]

On Sun, 13 Jan 2019 10:26:20 +0200
Lauri Kasanen <cand at gmx.com> wrote:

> ./ffmpeg_g -f rawvideo -pix_fmt rgb24 -s hd1080 -i /dev/zero -pix_fmt yuv420p16be \
> -s 1920x1728 -f null -vframes 100 -v error -nostats -
> 
> 9-14 bit funcs get about 6x speedup, 16-bit gets about 15x.
> Fate passes, each format tested with an image to video conversion.
> 
> Only POWER8 includes 32-bit vector multiplies, so POWER7 is locked out
> of the 16-bit function. This includes the vec_mulo/mule functions too,
> not just vmuluwm.

Applying.

- Lauri