[FFmpeg-devel] [PATCH] swscale/output: VSX-optimize nbps yuv2plane1

[Carl Eugen Hoyos]

2018-11-27 14:26 GMT+01:00, Lauri Kasanen <cand at gmx.com>:
> ./ffmpeg_g -f rawvideo -pix_fmt rgb24 -s hd1080 -i /dev/zero -pix_fmt
> yuv420p9le \
> -f null -vframes 100 -v error -nostats -
>
> Speedups:
> yuv2plane1_9BE_vsx	11.2042
> yuv2plane1_9LE_vsx	11.156
> yuv2plane1_10BE_vsx	9.89428
> yuv2plane1_10LE_vsx	10.3637
> yuv2plane1_12BE_vsx	9.71923
> yuv2plane1_12LE_vsx	11.0404
> yuv2plane1_14BE_vsx	10.1763
> yuv2plane1_14LE_vsx	11.2728
>
> Fate passes, each format tested with an image to video conversion.
>
> Depends on "swscale/ppc: Move VSX-using code to its own file".

> Only tested on LE.

This patch breaks output on BE, tested with fate-v410enc and:
$ ffmpeg -i fate-suite/lena.pnm -pix_fmt yuv420p10 -vcodec ffv1 out.nut

Carl Eugen