RE: [MSE] why MSE can assist adaptive streaming?

Media Source Extensions provide programmatic support over feeding data into media tracks associated with a media element (and allows switching between them). At the recent HTML WG F2F, Google demonstrated prototype code showing a page that uses these capabilities to implement adaptive streaming.

Adaptive streaming isn't the only use case solved by this spec however.

From: sunyang (eric) [mailto:sun.yang.nj@gmail.com]
Sent: Sunday, July 15, 2012 1:39 AM
To: public-html-media@w3.org
Subject: [MSE] why MSE can assist adaptive streaming?

As far as I know, adaptive streaming is handled in each vendor's http streaming implementation.
So what is the relationship between MSE and adaptive streaming?

--
Yang
Huawei