L3T1_KEY is a valid scalability mode. Chrome should already support it both for AV1 and VP9. AV1 spec doesn't have dedicated scalability_mode_idc for it in Metadata OBU, so encoder that wish to produce such optional OBU would have to use generic SCALABILITY_SS. It was probably missed because L3T1_KEY_SHIFT is not a valid structure, and in the AV1 spec there is 1:1 relation between _KEY and _KEY_SHIFT structures. -- GitHub Notification of comment by DanilChapovalov Please view or discuss this issue at https://github.com/w3c/webrtc-svc/issues/81#issuecomment-1424436108 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-configReceived on Thursday, 9 February 2023 16:04:58 UTC
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