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Fix #24: Suspending and notifying resumption of a download for a media element fetching from a MediaSource #85

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Jun 6, 2016
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Fix #24: Suspending and notifying resumption of a download for a media element fetching from a MediaSource #85

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25 changes: 19 additions & 6 deletions index.html
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Expand Up @@ -454,7 +454,7 @@
</p>
<h1 class="title p-name" id="title" property="dcterms:title">Media Source Extensions</h1>

<h2 id="w3c-editor-s-draft-26-may-2016"><abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft <time property="dcterms:issued" class="dt-published" datetime="2016-05-26">26 May 2016</time></h2>
<h2 id="w3c-editor-s-draft-06-june-2016"><abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft <time property="dcterms:issued" class="dt-published" datetime="2016-06-06">06 June 2016</time></h2>
<dl>

<dt>This version:</dt>
Expand Down Expand Up @@ -1130,12 +1130,17 @@ <h4 id="h-mediasource-attach" resource="#h-mediasource-attach"><span property="x
<dt>Otherwise</dt>
<dd>
<ol>
<li>Set the media element's <a href="https://www.w3.org/TR/html5/embedded-content-0.html#delaying-the-load-event-flag">delaying-the-load-event-flag</a> to false.</li>
<li>Set the <code><a href="#widl-MediaSource-readyState">readyState</a></code> attribute to <code><a href="#idl-def-ReadyState.open">"open"</a></code>.</li>
<li>
<a href="https://www.w3.org/TR/html5/webappapis.html#queue-a-task">Queue a task</a> to <a href="https://www.w3.org/TR/html5/webappapis.html#fire-a-simple-event">fire a simple event</a> named <code><a href="#dom-evt-sourceopen">sourceopen</a></code> at the <a href="#idl-def-MediaSource" class="idlType"><code>MediaSource</code></a>.</li>
<li>Continue the <a href="https://www.w3.org/TR/html5/embedded-content-0.html#concept-media-load-resource">resource fetch algorithm</a> by running the <span>"<i>Perform a potentially CORS-enabled fetch</i>"</span> step. Text in the <a href="https://www.w3.org/TR/html5/embedded-content-0.html#concept-media-load-resource">resource fetch algorithm</a>
that refers to "the download" or "bytes received" refer to data passed in via <code><a href="#widl-SourceBuffer-appendBuffer-void-ArrayBufferView-data">appendBuffer()</a></code> and <code><a href="#widl-SourceBuffer-appendStream-void-ReadableStream-stream-unsigned-long-long-maxSize">appendStream()</a></code>. References to
HTTP in the <a href="https://www.w3.org/TR/html5/embedded-content-0.html#concept-media-load-resource">resource fetch algorithm</a> do not apply because the HTMLMediaElement does not fetch media data via HTTP when a <a href="#idl-def-MediaSource" class="idlType"><code>MediaSource</code></a> is attached.</li>
<li>Continue the <a href="https://www.w3.org/TR/html5/embedded-content-0.html#concept-media-load-resource">resource fetch algorithm</a> by running the <span>"<i>Perform a potentially CORS-enabled fetch</i>"</span> step, with these clarifications:
<ol>
<li>Text in the <a href="https://www.w3.org/TR/html5/embedded-content-0.html#concept-media-load-resource">resource fetch algorithm</a> that refers to "the download" or "bytes received" refers to data passed in via <code><a href="#widl-SourceBuffer-appendBuffer-void-ArrayBufferView-data">appendBuffer()</a></code> and <code><a href="#widl-SourceBuffer-appendStream-void-ReadableStream-stream-unsigned-long-long-maxSize">appendStream()</a></code>.</li>
<li>References to HTTP in the <a href="https://www.w3.org/TR/html5/embedded-content-0.html#concept-media-load-resource">resource fetch algorithm</a> do not apply because the HTMLMediaElement does not fetch media data via HTTP when a <a href="#idl-def-MediaSource" class="idlType"><code>MediaSource</code></a> is attached.</li>
<li>Text in the <a href="https://www.w3.org/TR/html5/embedded-content-0.html#concept-media-load-resource">resource fetch algorithm</a> that refers to transitions to "NETWORK_IDLE" and firing "suspend" events, and the paragraph that begins with "User agents may decide to not download more content at any time", do not apply to a media element that has a <a href="#idl-def-MediaSource" class="idlType"><code>MediaSource</code></a> object attached by this algorithm.</li>
</ol>
</li>
</ol>
</dd>
</dl>
Expand Down Expand Up @@ -3182,7 +3187,15 @@ <h3 id="h-sourcebufferlist-events" resource="#h-sourcebufferlist-events"><span p
</thead>
<tbody>
<tr>
<td>26 May 2016</td>
<td>06 June 2016</td>
<td>
<ul>
<li>Issue 24 - Clarify MSE attachment stops delaying the 'load' event, and MSE disables 'suspend' event logic</li>
</ul>
</td>
</tr>
<tr>
<td><a href="https://rawgit.com/w3c/media-source/1f80b6e98d13acc106d5da80a771b6e4756d971c/index.html">26 May 2016</a></td>
<td>
<ul>
<li>Issue 44 - Used SVG and longdesc for pipeline diagram.</li>
Expand Down Expand Up @@ -3983,7 +3996,7 @@ <h3 id="h-sourcebufferlist-events" resource="#h-sourcebufferlist-events"><span p
</dd><dt id="bib-HTML5">[HTML5]</dt><dd>Ian Hickson; Robin Berjon; Steve Faulkner; Travis Leithead; Erika Doyle Navara; Edward O'Connor; Silvia Pfeiffer. <a href="http://www.w3.org/TR/html5/" property="dc:requires"><cite>HTML5</cite></a>. 28 October 2014. W3C Recommendation. URL: <a href="http://www.w3.org/TR/html5/" property="dc:requires">http://www.w3.org/TR/html5/</a>
</dd><dt id="bib-TYPED-ARRAYS">[TYPED-ARRAYS]</dt><dd>David Herman; Kenneth Russell. <a href="https://www.khronos.org/registry/typedarray/specs/latest/" property="dc:requires"><cite>Typed Array Specification</cite></a>. 26 June 2013. Khronos Working Draft. URL: <a href="https://www.khronos.org/registry/typedarray/specs/latest/" property="dc:requires">https://www.khronos.org/registry/typedarray/specs/latest/</a>
</dd><dt id="bib-WHATWG-STREAMS-API">[WHATWG-STREAMS-API]</dt><dd>Domenic Denicola; Takeshi Yoshino. <a href="https://streams.spec.whatwg.org/" property="dc:requires"><cite>WHATWG Streams API</cite></a>. URL: <a href="https://streams.spec.whatwg.org/" property="dc:requires">https://streams.spec.whatwg.org/</a>
</dd></dl></section><section id="informative-references" typeof="bibo:Chapter" resource="#informative-references" property="bibo:hasPart"><h3 id="h-informative-references" resource="#h-informative-references"><span property="xhv:role" resource="xhv:heading"><span class="secno">A.2 </span>Informative references</span></h3><dl class="bibliography" resource=""><dt id="bib-HTML51">[HTML51]</dt><dd>Steve Faulkner; Arron Eicholz; Travis Leithead; Alex Danilo. <a href="http://www.w3.org/TR/html51/" property="dc:references"><cite>HTML 5.1</cite></a>. 3 May 2016. W3C Working Draft. URL: <a href="http://www.w3.org/TR/html51/" property="dc:references">http://www.w3.org/TR/html51/</a>
</dd></dl></section><section id="informative-references" typeof="bibo:Chapter" resource="#informative-references" property="bibo:hasPart"><h3 id="h-informative-references" resource="#h-informative-references"><span property="xhv:role" resource="xhv:heading"><span class="secno">A.2 </span>Informative references</span></h3><dl class="bibliography" resource=""><dt id="bib-HTML51">[HTML51]</dt><dd>Steve Faulkner; Arron Eicholz; Travis Leithead; Alex Danilo. <a href="http://www.w3.org/TR/html51/" property="dc:references"><cite>HTML 5.1</cite></a>. 2 June 2016. W3C Working Draft. URL: <a href="http://www.w3.org/TR/html51/" property="dc:references">http://www.w3.org/TR/html51/</a>
</dd><dt id="bib-INBANDTRACKS">[INBANDTRACKS]</dt><dd>Bob Lund; Silvia Pfeiffer. <a href="http://dev.w3.org/html5/html-sourcing-inband-tracks/" property="dc:references"><cite>Sourcing In-band Media Resource Tracks from Media Containers into HTML</cite></a>. URL: <a href="http://dev.w3.org/html5/html-sourcing-inband-tracks/" property="dc:references">http://dev.w3.org/html5/html-sourcing-inband-tracks/</a>
</dd><dt id="bib-MSE-REGISTRY">[MSE-REGISTRY]</dt><dd>Aaron Colwell. <a href="byte-stream-format-registry.html" property="dc:references"><cite>Media Source Extensions Byte Stream Format Registry</cite></a>. URL: <a href="byte-stream-format-registry.html" property="dc:references">byte-stream-format-registry.html</a>
</dd></dl></section></section><p role="navigation" id="back-to-top"><a href="#toc"><abbr title="Back to Top">↑</abbr></a></p><script src="https://www.w3.org/scripts/TR/2016/fixup.js"></script></body></html>
23 changes: 18 additions & 5 deletions media-source-respec.html
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Expand Up @@ -20,7 +20,7 @@
// if this is a LCWD, uncomment and set the end of its review period
// lcEnd: "2009-08-05",

publishDate: "2016-05-26",
publishDate: "2016-06-06",
previousMaturity: "CR",
previousPublishDate: "2015-05-03",

Expand Down Expand Up @@ -652,12 +652,17 @@ <h4>Attaching to a media element</h4>
<dt>Otherwise</dt>
<dd>
<ol>
<li>Set the media element's <a def-id="delaying-the-load-event-flag"></a> to false.</li>
<li>Set the <a def-id="readyState"></a> attribute to <a def-id="open"></a>.</li>
<li>
<a def-id="Queue-a-task-to-fire-an-event-named"></a> <a def-id="sourceopen"></a> at the <a>MediaSource</a>.</li>
<li>Continue the <a def-id="resource-fetch-algorithm"></a> by running the <a def-id="perform-potentially-cors-enabled-fetch"></a> step. Text in the <a def-id="resource-fetch-algorithm"></a>
that refers to &quot;the download&quot; or &quot;bytes received&quot; refer to data passed in via <a def-id="appendBuffer"></a> and <a def-id="appendStream"></a>. References to
HTTP in the <a def-id="resource-fetch-algorithm"></a> do not apply because the HTMLMediaElement does not fetch media data via HTTP when a <a>MediaSource</a> is attached.</li>
<li>Continue the <a def-id="resource-fetch-algorithm"></a> by running the <a def-id="perform-potentially-cors-enabled-fetch"></a> step, with these clarifications:
<ol>
<li>Text in the <a def-id="resource-fetch-algorithm"></a> that refers to &quot;the download&quot; or &quot;bytes received&quot; refers to data passed in via <a def-id="appendBuffer"></a> and <a def-id="appendStream"></a>.</li>
<li>References to HTTP in the <a def-id="resource-fetch-algorithm"></a> do not apply because the HTMLMediaElement does not fetch media data via HTTP when a <a>MediaSource</a> is attached.</li>
<li>Text in the <a def-id="resource-fetch-algorithm"></a> that refers to transitions to &quot;NETWORK_IDLE&quot; and firing &quot;suspend&quot; events, and the paragraph that begins with &quot;User agents may decide to not download more content at any time&quot;, do not apply to a media element that has a <a>MediaSource</a> object attached by this algorithm.</li>
</ol>
</li>
</ol>
</dd>
</dl>
Expand Down Expand Up @@ -2781,7 +2786,15 @@ <h2>Revision History</h2>
</thead>
<tbody>
<tr>
<td>26 May 2016</td>
<td>06 June 2016</td>
<td>
<ul>
<li>Issue 24 - Clarify MSE attachment stops delaying the 'load' event, and MSE disables 'suspend' event logic</li>
</ul>
</td>
</tr>
<tr>
<td><a href="https://rawgit.com/w3c/media-source/1f80b6e98d13acc106d5da80a771b6e4756d971c/index.html">26 May 2016</a></td>
<td>
<ul>
<li>Issue 44 - Used SVG and longdesc for pipeline diagram.</li>
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1 change: 1 addition & 0 deletions media-source.js
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Expand Up @@ -283,6 +283,7 @@
'media-timeline': { func: videoref_helper, fragment: 'media-timeline', link_text: 'media timeline', },
'media-element-load-algorithm': { func: videoref_helper, fragment: 'media-element-load-algorithm', link_text: 'media element load algorithm', },
'resource-fetch-algorithm': { func: videoref_helper, fragment: 'concept-media-load-resource', link_text: 'resource fetch algorithm', },
'delaying-the-load-event-flag': {func: videoref_helper, fragment: 'delaying-the-load-event-flag', link_text: 'delaying-the-load-event-flag', },
'intrinsic-width-and-height': { func: videoref_helper, fragment: 'concept-video-intrinsic-width', link_text: 'intrinsic width and height', },
'normalized-timeranges-object': { func: videoref_helper, fragment: 'normalized-timeranges-object', link_text: 'normalized TimeRanges object', },
'current-playback-position': { func: videoref_helper, fragment: 'current-playback-position', link_text: 'current playback position', },
Expand Down