247414 – animated webp doesn't render properly

Bug 247414 - animated webp doesn't render properly

Summary: animated webp doesn't render properly

Attachments
gif (907.83 KB, image/gif) 2022-11-03 01:09 PDT, lydiafork	no flags	Details
webp (477.01 KB, image/webp) 2022-11-03 01:11 PDT, lydiafork	no flags	Details
webp (189.79 KB, image/webp) 2023-03-06 20:23 PST, luozhenyu	no flags	Details
gif (431.85 KB, image/gif) 2023-03-06 20:24 PST, luozhenyu	no flags	Details
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Description lydiafork 2022-11-03 01:09:34 PDT

Created attachment 463378 [details]
gif

animated webp doesn't render properly

Comment 1 lydiafork 2022-11-03 01:11:24 PDT

Created attachment 463379 [details]
webp

the webp img is transfer by the first gif version

Comment 2 lydiafork 2022-11-03 01:15:57 PDT

The problem with this kind of images is that the images seem to render in a "slow motion" of sorts.

Comment 3 lydiafork 2022-11-03 02:34:04 PDT

I would like to know how to avoid

Comment 4 Alexey Proskuryakov 2022-11-03 15:10:47 PDT

I see that an animating button leaves a trail. This doesn't happen in Chrome.

Comment 5 Radar WebKit Bug Importer 2022-11-03 15:26:55 PDT

<rdar://problem/101933939>

Comment 6 luozhenyu 2023-03-06 20:23:57 PST

Created attachment 465332 [details]
webp

Comment 7 luozhenyu 2023-03-06 20:24:15 PST

Created attachment 465333 [details]
gif

Comment 8 luozhenyu 2023-03-06 20:26:27 PST

Same to me. The picture from the previous frame does not seem to be cleared.

Comment 9 Said Abou-Hallawa 2023-03-07 10:47:14 PST

Same as bug 246792.

This is a bug in a system framework below webkit.

*** This bug has been marked as a duplicate of bug 246792 ***