Mark Foltz

> the ITU performed strictly controlled tests with expert viewers and found that the threshold for [lip sync] detectability is -125ms to +45ms. From: [ITU-R BT.1359-1, Relative Timing of Sound...

Is this what you are looking for? It covers some, but not all of the MPEG codecs. https://tools.ietf.org/html/rfc6381 There may be an equivalent RFC for the VP*/AV1 codecs. The media...

Spoke with Dan Sanders, there are other RFCs for the webm container we can refer to as well. He noted that enumeration of codec strings for any given codec family...

Take a look at these specs for VPX and AV1 and you'll see what I mean: https://storage.googleapis.com/downloads.webmproject.org/docs/vp9/vp-codec-iso-media-file-format-binding-20160516-draft.pdf https://aomediacodec.github.io/av1-isobmff/#codecsparam

It sounds like there wasn't an explicit action recorded in the last F2F minutes [1], but for the record, we discussed consulting with the Media WG folks working on Media...

Want to discuss briefly and propose putting up a pull request to update the specification to explicitly use the WebCodecs registry to resolve this issue.

@chrisn, at the F2F [*] you mentioned you would follow up with any thoughts on how to extend the codecs name list beyond what is defined through WebCodecs. Maybe we...

Good point. We could provide guidance along the lines that the codec string should only be returned in the capabilities response if MediaCapabilities would return "supported" and "smooth" in combination...

Closed by #299.

@muyao-xu has offered to help with this review (thank you!) @tidoust, I can send a PR to add myself to the reviewer meta-file. I don't seem to be able to...