[FFmpeg-devel] [PATCH] lavu/pixfmt: summarize yuv naming conventions

Nicolas George george at nsup.org
Wed Jul 27 19:48:48 EEST 2022


Hendrik Leppkes (12022-07-27):
> Following the actual naming convention, you would arrive at a 4x2
> grid, however even the Wikipedia article linked above is inconsistent
> with that. In the first section describing how the naming convention
> works, it lists an exception that 4:1:0 is supposedly referencing a
> 4x4 grid, however further down where 4:1:0 is being detailed, this is
> no longer the case.
> Many other resources just seem to copy this second Wikipedia description.
> 
> We have a variety of decoders that use this format as it is defined
> right now, presumably successfully. Of course that could just mean
> this format exists, and is just named wrong, on the other hand, did
> any decoder ever require the one pixel per 4x4 grid format, giving any
> technical baking to the other interpretation?

Thanks for the clarification. Let us leave it as it is.

Regards,

-- 
  Nicolas George
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <https://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20220727/39be9e4f/attachment.sig>


More information about the ffmpeg-devel mailing list