alternates-examples

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= Introduction =
= Introduction =
This page is to collect examples of '''alternates''', that is, places where a user may be given several different items to choose amongst that at some logical level are considered equivalent.
This page is to collect examples of '''alternates''', that is, places where a user may be given several different items to choose amongst that at some logical level are considered equivalent.

Revision as of 10:40, 5 January 2009

Contents

Introduction

This page is to collect examples of alternates, that is, places where a user may be given several different items to choose amongst that at some logical level are considered equivalent.

Discussion Participants

Editor

Authors

Interested Folks

Specific Examples from the Wild

MediaRSS

Yahoo's Media RSS provides the <media:group> tag to group alternate choices for the same media file together. Here's an example from their spec:

<rss version="2.0">
<channel>
<title>Song Site</title>
<link>http://www.foo.com</link>
<description>Songs galore at different bitrates</description>
 <item>
  <title>Cool song by an artist</title>
  <link>http://www.foo.com/item1.htm</link>
  <media:group>
   <media:content url="http://www.foo.com/song64kbps.mp3" 
   fileSize="1000" bitrate="64" type="audio/mpeg" 
   isDefault="true" expression="full"/>
   <media:content url="http://www.foo.com/song128kbps.mp3" 
   fileSize="2000" bitrate="128" type="audio/mpeg" 
   expression="full"/>
   <media:content url="http://www.foo.com/song256kbps.mp3" 
   fileSize="4000" bitrate="256" type="audio/mpeg" 
   expression="full"/>
   <media:content url="http://www.foo.com/song512kbps.mp3.torrent" 
   fileSize="8000" type="application/x-bittorrent;enclosed=audio/mpeg" 
   expression="full"/>
   <media:content url="http://www.foo.com/song.wav" 
   fileSize="16000" type="audio/x-wav" expression="full"/>
   <media:credit role="musician">band member 1</media:credit>
   <media:credit role="musician">band member 2</media:credit>
   <media:category>music/artist name/album/song</media:category>
   <media:rating>nonadult</media:rating>
  </media:group>
 </item>
</channel>
</rss>

Note the mixing of alternates and related metadata together under the group tag.

hVlog

The vPIP (Videos Playing in Place) library uses a format called hVlog to identify media enclosures in blog posts.

See Also

alternates-examples was last modified: Wednesday, December 31st, 1969

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