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The MSE specification should provide an informative reference to "Sourcing In-band Media Resource Tracks from Media Containers into HTML"[1] that describes how audio, video and text track attributes should be sourced for the MSE byte stream formats. One way to do this is as follows: - Add a statement to the general requirements for all byte stream format specifications [2], e.g. "A byte stream format should provide references for sourcing track attributes from data in initialization segments". - In each of the existing byte stream format specs defined in the MSE registry [3], add a reference to [1] in the "Initialization Segments" section; e.g. "The user agent should source attribute values for id, kind, label and language of audio, video and text tracks as described for the relevant media resource format. [INBANDTRACKS]" [1] http://dev.w3.org/html5/html-sourcing-inband-tracks/ [2] http://w3c.github.io/media-source/#byte-stream-formats [3] http://w3c.github.io/media-source/byte-stream-format-registry.html#registry
Change committed... https://github.com/w3c/media-source/commit/c3ad59c7a370d04430969ba73d18dc9bcde57a33 I did not update the mpeg audio byte stream format spec because the in-band spec doesn't appear to have sections for .mp3 and .aac content. It would be nice if info was added to the INBANDTRACKS spec for these formats so I can simply point to it like I do for the other formats.