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git-svn-id: file:///home/ksmith/gitmigration/svn/xmpp/trunk@1809 4b5297f7-1745-476d-ba37-a9c6900126ab
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Peter Saint-Andre 2008-04-28 16:47:05 +00:00
parent 3eaf8220a5
commit bad0660beb
1 changed files with 28 additions and 4 deletions
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xep-0221.xml
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@ -43,13 +43,19 @@
<section1 topic='Media Element' anchor='media'>
<p>The root element for media data is &lt;media/&gt;. This element MUST be qualified by the "urn:xmpp:tmp:media-element' namespace &NSNOTE;. The &lt;media/&gt; element MUST be contained within a &lt;field/&gt; element qualified by the 'jabber:x:data' namespace.</p>
<p>If the media is an image or video then the &lt;media/&gt; element SHOULD include 'height' and 'width' attributes specifying the recommended display size of the media in pixels.</p>
<p>The &lt;media/&gt; element SHOULD contain at least one &lt;uri/&gt; element to specify the out-of-band location of the media data. <note>Constrained execution environments prevent some clients (e.g., Web clients) from rendering media unless it has been received out-of-band.</note> The &lt;uri/&gt; element MUST contain a URI that indicates the location and MUST include a 'type' atribute that specifies the MIME type (see &rfc2045;) of the media.</p>
<p>The &lt;media/&gt; element MUST contain at least one &lt;uri/&gt; element to specify the out-of-band location of the media data. <note>Constrained execution environments prevent some clients (e.g., Web clients) from rendering media unless it has been received out-of-band.</note> The &lt;uri/&gt; element MUST contain a URI that indicates the location and MUST include a 'type' atribute that specifies the MIME type (see &rfc2045;) of the media.</p>
<p>The &lt;media/&gt; element MAY also contain one or more &lt;data/&gt; elements for distributing the media in-band. The &lt;data/&gt; element MUST be qualified by the 'urn:xmpp:tmp:data-element' as defined in &xep0231;. The <em>encoded</em> data SHOULD NOT be larger than 8 kilobytes. <note>If a stanza contains more than one &lt;data/&gt; element, the sending entity MUST take care not to trigger server-defined bandwidth limits.</note></p>
<example caption='Audio Media Element'><![CDATA[
<media xmlns='urn:xmpp:tmp:media-element'>
<uri type='audio/x-wav'>http://victim.example.com/challenges/speech.wav?F3A6292C</uri>
<uri type='audio/ogg-speex'>http://victim.example.com/challenges/speech.ogg?F3A6292C</uri>
<uri type='audio/mpeg'>http://victim.example.com/challenges/speech.mp3?F3A6292C</uri>
<uri type='audio/x-wav'>
http://victim.example.com/challenges/speech.wav?F3A6292C
</uri>
<uri type='audio/ogg-speex'>
http://victim.example.com/challenges/speech.ogg?F3A6292C
</uri>
<uri type='audio/mpeg'>
http://victim.example.com/challenges/speech.mp3?F3A6292C
</uri>
<data xmlns='urn:xmpp:tmp:data-element'
alt='An audio file'
type='audio/x-wav'>
@ -57,6 +63,24 @@
</data>
</media>
]]></example>
<p>The following example is provided only for the purpose of illustration; consult the specifications for using protocols to see canonical examples.</p>
<example caption='Inclusion in Data Form'><![CDATA[
<x xmlns='jabber:x:data' type='form'>
[ ... ]
<field var='ocr'>
<media xmlns='xmlns='urn:xmpp:tmp:media-element'
height='80'
width='290'>
<uri type='image/jpeg'>
http://www.victim.com/challenges/ocr.jpeg?F3A6292C
</uri>
<data xmlns='urn:xmpp:tmp:data-element'
type='image/jpeg'> ** Base64 encoded image ** </data>
</media>
</field>
[ ... ]
</x>
]]></example>
</section1>
<section1 topic='XMPP Registrar Considerations' anchor='registrar'>