[FFmpeg-devel] [PATCH v2 3/3] avfilter/scale_cuda: Add support for 4:2:2 chroma subsampling

[Philip Langdale]

On Mon, 7 Jul 2025 11:45:36 +0200
Diego Felix de Souza via ffmpeg-devel <ffmpeg-devel at ffmpeg.org> wrote:

> From: Diego de Souza <ddesouza at nvidia.com>
> 
> The supported YUV pixel formats were separated between planar
> and semiplanar. This approach reduces the number of CUDA kernels
> for all pixel formats.
> 
> This patch:
> 1. Adds support for YUV 4:2:2 planar and semi-planar formats:
>         yuv422p, yuv422p10, nv16, p210, p216
> 2. Implements new conversion structures and kernel definitions
>         for planar and semi-planar formats
> 
> Signed-off-by: Diego de Souza <ddesouza at nvidia.com>

Maybe this is actually the same as what Andreas was asking, but could
you split this change into two - with the first part just doing the
renames, and then the second part adding the 4:2:2 handling. The fact
that the renames get mixed in with the conversions causes it to be hard
to keep track of what is actually new.

Thanks,

--phil