[Bug 22263] No requirement on synchronization of tracks in a MediaStream

https://www.w3.org/Bugs/Public/show_bug.cgi?id=22263

--- Comment #5 from Martin Thomson <martin.thomson@skype.net> ---
While the intent of the current text is sufficient, it probably isn't enough
information for an implementer to understand all the ramifications of the
statement.

We could expect that implementations will do the right thing, but it might be
better to expand on that statement rather than just leave it lie.  Dom isn't
the only person who is likely to ask the question regarding conformance.

I don't think that this sounds right, but something along these lines might be
appropriate:

"While the intent is to synchronize tracks, it could be better in some
circumstances to permit tracks to lose synchronization.  In particular, when
tracks are remotely sourced and real-time (see WebRTC), it can be better to
allow loss of synchronization than to accumulate delays or risk glitches and
other artefacts.  Implementations are expected to understand the implications
of choices regarding synchronization of playback and the effect that these have
on user perception."

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Received on Wednesday, 5 June 2013 16:32:20 UTC