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Firefox video stutters and has low framerate when using AV1 codec with hardware acceleration

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Liipski
Liipski
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I've played video both on Firefox and Edge using AV1 and VP9 codes. Only Firefox has the issue of video stutter when AV1 is played. I've tested it both with hardware acceleration and without and only when recommended settings were turned off along with hardware acceleration video seemed to have improved. Switching recommended settings or hardware acceleration back on would bring back stuttering.

Firefox: 111.0 (64 bit) GPU: RTX 6800 XT (newest drivers installed) OS: Windows 11 22H2 22621.1413

I've played video both on Firefox and Edge using AV1 and VP9 codes. Only Firefox has the issue of video stutter when AV1 is played. I've tested it both with hardware acceleration and without and only when recommended settings were turned off along with hardware acceleration video seemed to have improved. Switching recommended settings or hardware acceleration back on would bring back stuttering. Firefox: 111.0 (64 bit) GPU: RTX 6800 XT (newest drivers installed) OS: Windows 11 22H2 22621.1413