RESOLVED MOVED 275906
Animated AVIF with transparency doesn't play correctly 
https://bugs.webkit.org/show_bug.cgi?id=275906
Summary Animated AVIF with transparency doesn't play correctly
Jake Archibald
Reported 2024-06-26 10:27:00 PDT
https://static-misc-3.glitch.me/alpha-video-test/avif-img.html In Safari 17.5, it plays back slowly, and with incorrect transparency. Compare to Chrome or Firefox for the correct rendering (although playback performance is poor in Chrome) https://issues.chromium.org/issues/349566435.
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Radar WebKit Bug Importer
Comment 1 2024-06-26 11:06:01 PDT
<rdar://problem/130607349>
Said Abou-Hallawa
Comment 2 2024-06-26 14:26:12 PDT
Thank you for the report! This is an issue below WebKit, tracked by Apple internally as rdar://130607349.
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