W3C home > Mailing lists > Public > public-html-media@w3.org > February 2013

Re: [MSE] transport stream constraints vs Apple's HLS

From: David Singer <singer@apple.com>
Date: Tue, 05 Feb 2013 15:39:20 -0800
Cc: Adrian Bateman <adrianba@microsoft.com>, Michael Thornburgh <mthornbu@adobe.com>, "public-html-media@w3.org" <public-html-media@w3.org>, Bob Lund <b.lund@cablelabs.com>
Message-id: <D5F905AC-B618-48EC-ACC2-5B2867AE1D37@apple.com>
To: Aaron Colwell <acolwell@google.com>
I think it's worth saying that one of the main motivations to support MPEG-2 Transport Streams at all is to be able to take stuff 'as is' from environments that use them, and re-purpose it.  That argues for the minimum number of restrictions.  If people are going to be asked to transcode, then a change of format might also be possible (though 'using existing tooling' also comes into play).

It's one of the reasons that HLS uses transport streams, I think.

So, having the possibility of using essentially unconstrained TSs -- possibly with consequences that can be averted by adopting constraints -- makes sense.

David Singer
Multimedia and Software Standards, Apple Inc.
Received on Tuesday, 5 February 2013 23:39:48 UTC

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