Does playoutDelay of video affect jitter buffer of synced audio and vice versa?

[jan-ivar]

The spec has this non-normative note:

What does "the largest of those hints will take precedence in synchronization mechanism" mean? Does it mean:

1. tracks get synced at playout without the benefit of deeper jitter buffers?
2. tracks get the same (larger) jitter buffer depth?

As mentioned in #156, jitter buffer depth is JS-observable through receiver.getStats(), so we should be clear.

Notes are non-normative in this spec, and I find no normative steps to support 2, which suggests 1.

Was 1 the intent? Is 2 useful? If so, do we wish to specify it? Any downsides to doing so? Either way we should clarify.

[bdrtc]

Yes ,from our test, playoutDelay of video will be affected by av sync, i have metioned this before in nv-use-case, user should disable A/V sync when use playoutDelay to achive low delay of video.

[dontcallmedom-bot]

This issue was mentioned in WEBRTCWG-2023-04-18 (Page 81)