[FFmpeg-devel] [PATCH] libavfilter: zscale performance optimization >4x

[Lynne]

19 Feb 2022, 14:58 by niva213 at gmail.com:

> By ffmpeg threading support implementation via frame slicing and doing
> zimg_filter_graph_build that used to take 30-60% of each frame processig
> only if necessary (some parameters changed)
> the performance increase vs original version
> in video downscale and color conversion  >4x is seen
> on 64 cores Intel Xeon, 3x on i7-6700K (4 cores with HT)
>
> Signed-off-by: Victoria Zhislina <Victoria.Zhislina at intel.com>
>

Can't you patch such a feature into the upstream instead?