[Bug 21302] Support for inserting adverts as non-fragmented MP4 files

https://www.w3.org/Bugs/Public/show_bug.cgi?id=21302

--- Comment #2 from oipfjon@gmail.com ---

> If adaptive streaming is not required, why use Media Source at all ? Why not
> just use a separate video element to play the advert ?

The broadcasters want the transition from the main content item to the adverts
and back again to be as seamless as possible. (There's a long debate in
progress in various places about how seamless is possible and how the content
must be prepared/constrained to achieve that.)

Use of two video elements has been discussed extensively in the workshops of
the 3 organisations as one of the options. However just starting the 2nd video
element from JS based on polling for the advert insertion time or use of media
fragment URI with an end time was believed to be a long way removed from
seamless without some new APIs to somehow link the two video elements together
so that the UA (platform) automatically started the 2nd at the end of the
content in the 1st without an JS in the critical path.

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Received on Saturday, 16 March 2013 15:13:47 UTC