Discovery and fallback for media segment addressing over HTTP

• From: Conrad Parker <conrad@metadecks.org>
• Date: Wed, 1 Apr 2009 16:09:22 +0900
• To: Media Fragment <public-media-fragment@w3.org>
• Message-ID: <dba6c0830904010009t5d5cca9fw33b3b5174abf4656@mail.gmail.com>

Hi,

there were some recent questions about discovery (how does a client
find out whether an HTTP segment response mechanism is available) and
fallback (what happens if either the client or server fails to
understand the mechanism). I've put together some thoughts here:

http://blog.kfish.org/2009/04/discovery-and-fallback-for-media.html

Summary

    * The distinction between use of fragments or queries is one of
protocol mechanism
    * For the common case of video displayed in HTML, the distinction
is not user-visible
    * The use of fragment specifiers do not have a fallback to standard HTTP
    * The cost of discovery failure for fragments is high (retrieval
of entire resource)

Conrad.

Received on Wednesday, 1 April 2009 07:09:58 UTC