[FFmpeg-devel] [PATCH v1 1/9] lavu/pix_fmt: add P012 pixel format

[Carl Eugen Hoyos]

Am Mi., 26. Jan. 2022 um 09:33 Uhr schrieb Xiang, Haihao
<haihao.xiang-at-intel.com at ffmpeg.org>:

> > Did you already explain why you cannot use P016 or in which situation
> > it would create a different output?
>
> $ ffmpeg -hwaccel vaapi -f rawvideo -pix_fmt p016 -s 1920x1080 -i input.yuv
> -vf "hwupload,format=vaapi" -c:v hevc_vaapi -f null -
>
> If using P016, how will we know the input is 12bit indeed

Thank you for explaining this, at least I didn't realize this reason earlier!

I hope we can find another solution than to add an additional pix_fmt.
I believe I had suggested an additional property bit_depth for raw video
a long time ago.

Carl Eugen