[Bug 22137] changes in number of audio tracks during advert insertion

https://www.w3.org/Bugs/Public/show_bug.cgi?id=22137

Jerry Smith <jdsmith@microsoft.com> changed:

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--- Comment #5 from Jerry Smith <jdsmith@microsoft.com> ---
We've not yet closed on this topic, so are bringing it back for discussion.  We
have concluded that the request is understandable and valid.  The experience
could have some rough patches, but that is perhaps preferable to returning an
error when the track count isn't precisely aligned.

There are some tricky aspects though, like playing a track in one language and
having it flip to another during ad insertion.  This is a tough issue to solve,
since it’s fundamental to the premise that some tracks can be abruptly dropped
and later resumed.  Including language in the heuristic would help in cases
where the playback language matches the operating system localization, which
should be a common case.

Persisting user selections also seems tricky.  If we are playing content in one
language, insert an ad and play another, what should be done with any user
selected changes during the ad?  Presumably post-ad we normally would revert to
the previously playing track that disappeared during the ad, but if the user
makes a selection, should we persist it?  

Also, can we continue to prohibit dynamically increasing the number of audio
tracks?  This would be more difficult to implement.

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Received on Tuesday, 9 July 2013 03:13:01 UTC