[FFmpeg-devel] [PATCH] avfilter: fix YUV colorspace negotiation for YUVJ

[Niklas Haas]

On Mon, 25 Mar 2024 14:40:44 +0100 Niklas Haas <ffmpeg at haasn.xyz> wrote:
> From: Niklas Haas <git at haasn.dev>
> 
> Ironically, despite being introduced to make YUVJ unnecessary, the new
> YUV negotiation logic failed to actually negotiate YUVJ formats
> themselves correctly, leading to errors when passing YUVJ frames into
> a filter graph. (They were effectively treated like RGB or Grayscale
> formats, rather than as forced-full-range YUV, and hence did not have
> their colorspace matrix correctly negotiated)
> 
> Fix this by splitting off the YUVJ check from ff_fmt_is_regular_yuv().
> Obviously, we can trivially undo this change again once YUVJ is actually
> deleted from the codebase.

Breaks FATE, I will investigate.