On 07/10/2023 02:14, Michael Niedermayer wrote:
This fixes green lines in some odd dimensions with some slice configurations
like Ticket 5548
This also changes the encoder and whats encoded, and would require an
update to the specification. This change attempts to limit the change
to configurations that have missing lines currently.
It changes a lot the count of pixels per slice, and , e.g. with 4:2:2 and 4
slices per direction (16 slices in total), 13 pixel width:
before: 3/3/3/4 for luma, 2/2/2/2 for chroma (so 1 chroma too much)
after: 4/4/2/3 for luma, 2/2/1/2 for chroma
Wouldn't it easier for spec and maths to keep the previous behavior for luma
and consider extra chroma as to be not encoded?
Something like 3/3/3/4 for luma, 2/2/2/1 for chroma
Actually maybe not really a change for spec in that case, more making a part
more explicit while considering the patch as a bug fix rather than a spec
change.
Or did I miss another issue? I'll check more a bit later.
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