[webrtc-stats] Clarify frame rates when SVC is used (#711)

henbos has just created a new issue for https://github.com/w3c/webrtc-stats:

== Clarify frame rates when SVC is used ==
Depending on [scalability mode], any given frame that is being encoded or sent can have one or more corresponding SVC layers.

The spec is not very clear if in the SVC case, the frame counters being counted for each frame refers to each temporal frame (input frame that was processed) or per unit of the SVC layer (a variable number of frames per input frame).

Should we clarify that each temporal frame is only counted once? For example framesSent can be reported as 90 fps in Chrome when SVC is used (3 active 30 fps layers), but it probably makes a lot more sense if this is reported as 30 fps.

Please view or discuss this issue at https://github.com/w3c/webrtc-stats/issues/711 using your GitHub account

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Received on Tuesday, 29 November 2022 15:40:53 UTC