[FFmpeg-devel] [PATCH v2] swscale: add unscaled conversion from yuv420p to p010

[Ali KIZIL]

On Sep 4, 2016 5:02 PM, "Timo Rothenpieler" <timo at rothenpieler.org> wrote:
>
> > Finally, with the change, the function can also be used
> > for P016, note that I tried to object to P010: It does not
> > serve any real purpose, if I remember correctly, the
> > explanation for the commit was that there is a bug in
> > FFmpeg's pix_fmt decision routine that needed to
> > be worked-around ("hacked").
>
> It's the input format to nvenc in 10bit mode.
> The purpose of this patch is to make conversion from yuv420p (8 bit) to
> p010 (10 bit) fast.
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel

Especially for 4K and UHD frames.
You may not notice conversion speed change in HD or SD resolutions.