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Changes to ISOBMFF #33

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Changes to ISOBMFF #33

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59aff2f
adding application/mp4
cconcolato Oct 28, 2014
f7216f6
rephrase the statements about handler_type
cconcolato Oct 28, 2014
f408569
adding ExtendedLanguage box
cconcolato Oct 28, 2014
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12 changes: 6 additions & 6 deletions index.html
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Expand Up @@ -711,7 +711,7 @@ <h2>MPEG-2 Transport Streams</h2>

<section id='mpeg4'>
<h2>MPEG-4 ISOBMFF</h2>
<b>MIME type/subtype: audio/mp4 , video/mp4</b>
<b>MIME type/subtype: audio/mp4 , video/mp4, application/mp4</b>

<ol>
<li><p>Track Order</p>
Expand All @@ -722,12 +722,12 @@ <h2>MPEG-4 ISOBMFF</h2>

<li><p>Determining the type of track</p>
<p>
A user agent recognises and supports data from a MPEG-4 TrackBox as being equivalent to a HTML track based on the value of the 'handler_type' field in the HandlerBox ('hdlr) of the MediaBox ('mdia') of the TrackBox:
A user agent shall create HTML Track objects from [[ISOMBFF]] tracks based on the value of the <code>handler_type</code> field in the <code>HandlerBox</code> of the <code>MediaBox</code> of the <code>TrackBox</code> of those tracks as follows:
</p>
<ul>
<li>text track: the 'handler_type' value is "meta", "subt" or "text"</li>
<li>video track: the 'handler_type' value is "soun"</li>
<li>audio track: the 'handler_type' value is "vide"</li>
<li>If the <code>handler_type</code> value is <code>meta</code>, <code>subt</code> or <code>text</code>, the user agent shall create a <code>TextTrack</code> object.</li>
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That is much harder to read. I prefer we keep it the other way around.

<li>If the <code>handler_type</code> value is <code>soun</code>, the user agent shall create a <code>AudioTrack</code> object.</li>
<li>If the <code>handler_type</code> value is <code>vide</code>, the user agent shall create a <code>VideoTrack</code> object.</li>
</ul>
</li>

Expand Down Expand Up @@ -773,7 +773,7 @@ <h2>MPEG-4 ISOBMFF</h2>
<tr>
<th>language</th>
<td>
Content of the 'language' field in the MediaHeaderBox.
Content of the <code>language</code> field in the <code>MediaHeaderBox</code> or of the <code>extended_language</code> field in the <code>ExtendedLanguageBox</code> (as defined in ISO/IEC 14496-12:2014/Amd4).
</td>
</tr>
<tr>
Expand Down