--- a/encrypted-media/cenc-format-respec.html Mon Jul 28 16:50:04 2014 -0700
+++ b/encrypted-media/cenc-format-respec.html Tue Aug 05 14:14:04 2014 -0700
@@ -114,15 +114,13 @@
<section id="init-data">
<h2>Initialization Data and Events</h2>
- <p class="issue">This section is still under discussion. See <a href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=17673">Bug 17673</a>.</p>
- <p>Common Encryption files may contain one or more protection system specific header ('pssh') boxes, each for a unique SystemID at each location where a 'pssh' is necessary.</p>
- <p><a href="encrypted-media.html#initialization-data">Initialization Data</a> is always one or more concatenated 'pssh' boxes. The CDM must be able to filter multiple 'pssh' in the initData to find the 'pssh' box which is Key System appropriate.</p>
+ <p>Common Encryption files may contain one or more protection system specific header ('pssh') boxes, each for a unique SystemID at each location where a 'pssh' box is necessary.</p>
+ <p><a href="encrypted-media.html#initialization-data">Initialization Data</a> is always one or more concatenated 'pssh' boxes. The CDM must be able to examine multiple 'pssh' boxes in the Initialization Data to find a 'pssh' box that it supports.</p>
<p>Each time one or more 'pssh' boxes are encountered, the <a href="encrypted-media.html#algorithms-initdata-encountered">Initialization Data Encountered</a> algorithm shall be invoked with <var title="">initDataType</var> = "cenc" and <var title="">initData</var> = the 'pssh' box(es). Multiple 'pssh' boxes must be provided together if and only if they appear directly next to each other in the file.</p>
<p>If a supported 'pssh' box (based on SystemID) is not found while processing the <var>initData</var> in the <code><a href="encrypted-media.html#dom-createsession">createSession()</a></code> algorithm, follow the algorithm step for "<var>init data</var> is not supported by the <var>cdm</var>."</p>
-
- <p class="note">'pssh' boxes stored in movie fragment boxes are intended to store keys referenced by KID in a sample group description contained in that movie fragment, where the KID in the sample group description overrides the default_KID specified for the track in the track encryption box ('tenc'). Each 'moof'/'pssh' must protect the contained keys with a SystemID specific method. Sample groups and 'pssh' key storage in movie fragments enable keys to be changed and accessed without interruption during playback of a track.</p>
+
+ <p class="note">'pssh' boxes stored in movie fragment boxes are intended to store keys referenced by KID in a sample group description contained in that movie fragment, where the KID in the sample group description overrides the default_KID specified for the track in the track encryption box ('tenc'). Each 'moof'/'pssh' box must protect the contained keys with a SystemID specific method. Sample groups and 'pssh' key storage in movie fragments enable keys to be changed and accessed without interruption during playback of a track.</p>
<p class="note">ISO Common Encryption 2nd Edition [[!CENC-2ND]] also specifies storage of a 'pssh' box base64 encoded in an XML element of the form <cenc:pssh (base64 'pssh')>. For instance, DASH manifests may provide 'pssh' boxes in this format, each contained in a ContentProtection Descriptor element identified by a SystemID. These 'pssh' boxes may be decoded and concatenated by an application to provide equivalent Initialization Data to that stored in movie or movie fragment boxes.</p>
-
</section>
<section id="common-system">
--- a/encrypted-media/cenc-format.html Mon Jul 28 16:50:04 2014 -0700
+++ b/encrypted-media/cenc-format.html Tue Aug 05 14:14:04 2014 -0700
@@ -1,5 +1,5 @@
<!DOCTYPE html>
-<html lang="en" dir="ltr" content="en" property="dcterms:language" about="" typeof="bibo:Document ">
+<html lang="en" dir="ltr" typeof="bibo:Document " about="" property="dcterms:language" content="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>ISO Common Encryption EME Stream Format and Initialization Data</title>
@@ -81,7 +81,7 @@
}
-</style><link href="eme.css" rel="stylesheet">
+</style><link rel="stylesheet" href="eme.css">
<style>/*****************************************************************
* ReSpec 3 CSS
* Robin Berjon - http://berjon.com/
@@ -197,16 +197,16 @@
display: none;
}
}
-</style><link href="https://www.w3.org/StyleSheets/TR/W3C-ED" rel="stylesheet"><!--[if lt IE 9]><script src='https://www.w3.org/2008/site/js/html5shiv.js'></script><![endif]--></head>
- <body class="h-entry" id="respecDocument" role="document"><div class="head" id="respecHeader" role="contentinfo">
+</style><link rel="stylesheet" href="https://www.w3.org/StyleSheets/TR/W3C-ED"><!--[if lt IE 9]><script src='https://www.w3.org/2008/site/js/html5shiv.js'></script><![endif]--></head>
+ <body class="h-entry" role="document" id="respecDocument"><div class="head" role="contentinfo" id="respecHeader">
<p>
- <a href="http://www.w3.org/"><img width="72" height="48" alt="W3C" src="https://www.w3.org/Icons/w3c_home"></a>
+ <a href="http://www.w3.org/"><img width="72" height="48" src="https://www.w3.org/Icons/w3c_home" alt="W3C"></a>
</p>
<h1 class="title p-name" id="title" property="dcterms:title">ISO Common Encryption EME Stream Format and Initialization Data</h1>
- <h2 id="w3c-editor-s-draft-28-july-2014" content="2014-07-28T23:45:25.000Z" property="dcterms:issued" datatype="xsd:dateTime"><abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft <time class="dt-published" datetime="2014-07-28">28 July 2014</time></h2>
+ <h2 property="dcterms:issued" datatype="xsd:dateTime" content="2014-08-06T04:03:25.000Z" id="w3c-editor-s-draft-05-august-2014"><abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft <time class="dt-published" datetime="2014-08-05">05 August 2014</time></h2>
<dl>
<dt>This version:</dt>
@@ -227,13 +227,13 @@
<dt>Editors:</dt>
- <dd class="p-author h-card vcard" rel="bibo:editor" inlist=""><span typeof="foaf:Person"><span class="p-name fn" property="foaf:name">David Dorwin</span>, <a class="p-org org h-org h-card" href="http://www.google.com/" rel="foaf:workplaceHomepage">Google Inc.</a></span>
+ <dd class="p-author h-card vcard" rel="bibo:editor" inlist=""><span typeof="foaf:Person"><span property="foaf:name" class="p-name fn">David Dorwin</span>, <a rel="foaf:workplaceHomepage" class="p-org org h-org h-card" href="http://www.google.com/">Google Inc.</a></span>
</dd>
-<dd class="p-author h-card vcard" rel="bibo:editor" inlist=""><span typeof="foaf:Person"><span class="p-name fn" property="foaf:name">Adrian Bateman</span>, <a class="p-org org h-org h-card" href="http://www.microsoft.com/" rel="foaf:workplaceHomepage">Microsoft Corporation</a></span>
+<dd class="p-author h-card vcard" rel="bibo:editor" inlist=""><span typeof="foaf:Person"><span property="foaf:name" class="p-name fn">Adrian Bateman</span>, <a rel="foaf:workplaceHomepage" class="p-org org h-org h-card" href="http://www.microsoft.com/">Microsoft Corporation</a></span>
</dd>
-<dd class="p-author h-card vcard" rel="bibo:editor" inlist=""><span typeof="foaf:Person"><span class="p-name fn" property="foaf:name">Mark Watson</span>, <a class="p-org org h-org h-card" href="http://www.netflix.com/" rel="foaf:workplaceHomepage">Netflix Inc.</a></span>
+<dd class="p-author h-card vcard" rel="bibo:editor" inlist=""><span typeof="foaf:Person"><span property="foaf:name" class="p-name fn">Mark Watson</span>, <a rel="foaf:workplaceHomepage" class="p-org org h-org h-card" href="http://www.netflix.com/">Netflix Inc.</a></span>
</dd>
-<dd class="p-author h-card vcard" rel="bibo:editor" inlist=""><span typeof="foaf:Person"><span class="p-name fn" property="foaf:name">Jerry Smith</span>, <a class="p-org org h-org h-card" href="http://www.microsoft.com/" rel="foaf:workplaceHomepage">Microsoft Corporation</a></span>
+<dd class="p-author h-card vcard" rel="bibo:editor" inlist=""><span typeof="foaf:Person"><span property="foaf:name" class="p-name fn">Jerry Smith</span>, <a rel="foaf:workplaceHomepage" class="p-org org h-org h-card" href="http://www.microsoft.com/">Microsoft Corporation</a></span>
</dd>
@@ -267,11 +267,11 @@
<hr>
</div>
<!-- TODO: Use styles for ISO boxes like the MSE registry. -->
- <section class="introductory" id="abstract" property="dcterms:abstract" typeof="bibo:Chapter" datatype="" rel="bibo:Chapter" resource="#abstract"><h2 id="h2_abstract" role="heading" aria-level="1">Abstract</h2>
+ <section id="abstract" class="introductory" property="dcterms:abstract" datatype="" typeof="bibo:Chapter" resource="#abstract" rel="bibo:Chapter"><h2 aria-level="1" role="heading" id="h2_abstract">Abstract</h2>
<p>This specification defines the stream format and initialization data for using ISO Base media File Format [<cite><a class="bibref" href="#bib-BMFF">BMFF</a></cite>] content using the ISO Common Encryption ('cenc') protection scheme [<cite><a class="bibref" href="#bib-CENC-1ST">CENC-1ST</a></cite>] with the <a href="http://www.w3.org/TR/encrypted-media/">Encrypted Media Extensions</a>.
It also defines a common SystemID and PSSH box format for use with Encrypted Media Extensions.
</p>
- </section><section class="introductory" id="sotd" typeof="bibo:Chapter" rel="bibo:Chapter" resource="#sotd"><h2 id="h2_sotd" role="heading" aria-level="1">Status of This Document</h2>
+ </section><section id="sotd" class="introductory" typeof="bibo:Chapter" resource="#sotd" rel="bibo:Chapter"><h2 aria-level="1" role="heading" id="h2_sotd">Status of This Document</h2>
@@ -314,7 +314,7 @@
<p>
This document was produced by a group operating under the
- <a id="sotd_patent" href="http://www.w3.org/Consortium/Patent-Policy-20040205/" rel="w3p:patentRules" about="">5 February 2004 <abbr title="World Wide Web Consortium">W3C</abbr> Patent
+ <a id="sotd_patent" about="" rel="w3p:patentRules" href="http://www.w3.org/Consortium/Patent-Policy-20040205/">5 February 2004 <abbr title="World Wide Web Consortium">W3C</abbr> Patent
Policy</a>.
@@ -337,18 +337,18 @@
-</section><section id="toc"><h2 class="introductory" id="h2_toc" role="heading" aria-level="1">Table of Contents</h2><ul class="toc" id="respecContents" role="directory"><li class="tocline"><a class="tocxref" href="#stream-format"><span class="secno">1. </span>Stream Format</a></li><li class="tocline"><a class="tocxref" href="#detect-encrypt"><span class="secno">2. </span>Detecting Encryption</a></li><li class="tocline"><a class="tocxref" href="#init-data"><span class="secno">3. </span>Initialization Data and Events</a></li><li class="tocline"><a class="tocxref" href="#common-system"><span class="secno">4. </span>Common SystemID and PSSH Box Format</a><ul class="toc"><li class="tocline"><a class="tocxref" href="#common-system-definition"><span class="secno">4.1 </span>Definition</a></li><li class="tocline"><a class="tocxref" href="#example"><span class="secno">4.2 </span>Example</a></li></ul></li><li class="tocline"><a class="tocxref" href="#references"><span class="secno">A. </span>References</a><ul class="toc"><li class="tocline"><a class="tocxref" href="#normative-references"><span class="secno">A.1 </span>Normative references</a></li></ul></li></ul></section>
+</section><section id="toc"><h2 class="introductory" aria-level="1" role="heading" id="h2_toc">Table of Contents</h2><ul class="toc" role="directory" id="respecContents"><li class="tocline"><a href="#stream-format" class="tocxref"><span class="secno">1. </span>Stream Format</a></li><li class="tocline"><a href="#detect-encrypt" class="tocxref"><span class="secno">2. </span>Detecting Encryption</a></li><li class="tocline"><a href="#init-data" class="tocxref"><span class="secno">3. </span>Initialization Data and Events</a></li><li class="tocline"><a href="#common-system" class="tocxref"><span class="secno">4. </span>Common SystemID and PSSH Box Format</a><ul class="toc"><li class="tocline"><a href="#common-system-definition" class="tocxref"><span class="secno">4.1 </span>Definition</a></li><li class="tocline"><a href="#example" class="tocxref"><span class="secno">4.2 </span>Example</a></li></ul></li><li class="tocline"><a href="#references" class="tocxref"><span class="secno">A. </span>References</a><ul class="toc"><li class="tocline"><a href="#normative-references" class="tocxref"><span class="secno">A.1 </span>Normative references</a></li></ul></li></ul></section>
- <section id="stream-format" typeof="bibo:Chapter" rel="bibo:Chapter" resource="#stream-format">
- <!--OddPage--><h2 id="h2_stream-format" role="heading" aria-level="1"><span class="secno">1. </span>Stream Format</h2>
- <p>Under the ISO Common Encryption ('cenc') protection scheme [<cite><a class="bibref" href="#bib-CENC-1ST">CENC-1ST</a></cite>], ISO Base media File Format [<cite><a class="bibref" href="#bib-BMFF">BMFF</a></cite>]128 CTR encryption. This protection method enables multiple Key Systems to decrypt the same media content.</p>
+ <section id="stream-format" typeof="bibo:Chapter" resource="#stream-format" rel="bibo:Chapter">
+ <!--OddPage--><h2 aria-level="1" role="heading" id="h2_stream-format"><span class="secno">1. </span>Stream Format</h2>
+ <p>Under the ISO Common Encryption ('cenc') protection scheme [<cite><a class="bibref" href="#bib-CENC-1ST">CENC-1ST</a></cite>], ISO Base media File Format [<cite><a class="bibref" href="#bib-BMFF">BMFF</a></cite>] content is encrypted at the sample level with AES-128 CTR encryption. This protection method enables multiple Key Systems to decrypt the same media content.</p>
<p>Each key is identified by a Key ID and each encrypted sample is associated with the Key ID of the key needed to decrypt it. This association is signaled either through the specification of a default Key ID in the track encryption box ('tenc') or by assigning the sample to a Sample Group, the definition of which specifies a Key ID. Common encryption files may contain a mixture of encrypted and unencrypted samples.</p>
</section>
- <section id="detect-encrypt" typeof="bibo:Chapter" rel="bibo:Chapter" resource="#detect-encrypt">
- <!--OddPage--><h2 id="h2_detect-encrypt" role="heading" aria-level="1"><span class="secno">2. </span>Detecting Encryption</h2>
+ <section id="detect-encrypt" typeof="bibo:Chapter" resource="#detect-encrypt" rel="bibo:Chapter">
+ <!--OddPage--><h2 aria-level="1" role="heading" id="h2_detect-encrypt"><span class="secno">2. </span>Detecting Encryption</h2>
<p>Protection scheme signaling conforms with ISO Base media File Format [<cite><a class="bibref" href="#bib-BMFF">BMFF</a></cite>]. When protection has been applied, the stream type will be transformed to 'encv' for video or 'enca' for audio, with a Protection Scheme Information Box ('sinf') added to the sample entry in the Sample Description Box ('stsd'). The Protection Scheme Information Box ('sinf') will contain a Scheme Type Box ('schm') with a scheme_type field set to a value of 'cenc' (Common Encryption).</p>
<p>The "encrypted block" is a sample. Determining whether a sample is encrypted depends on the corresponding Track Encryption Box ('tenc') and the sample group with grouping type 'seig' (CencSampleEncryption group), if any, associated with the sample.
The default encryption state of a sample is defined by the IsEncrypted flag in the associated track encryption box ('tenc'). This default state may be modified by the IsEncrypted flag in the SampleGroupDescriptionBox ('sgpd'), pointed to by an index in the SampleToGroupBox ('sbgp').</p>
@@ -356,29 +356,27 @@
<p>For complete information, see [<cite><a class="bibref" href="#bib-CENC-1ST">CENC-1ST</a></cite>].</p>
</section>
- <section id="init-data" typeof="bibo:Chapter" rel="bibo:Chapter" resource="#init-data">
- <!--OddPage--><h2 id="h2_init-data" role="heading" aria-level="1"><span class="secno">3. </span>Initialization Data and Events</h2>
- <div class="issue"><div class="issue-title" id="h_issue_1" role="heading" aria-level="2"><span>Issue 1</span></div><p>This section is still under discussion. See <a href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=17673">Bug 17673</a>.</p></div>
- <p>Common Encryption files may contain one or more protection system specific header ('pssh') boxes, each for a unique SystemID at each location where a 'pssh' is necessary.</p>
- <p><a href="encrypted-media.html#initialization-data">Initialization Data</a> is always one or more concatenated 'pssh' boxes. The CDM must be able to filter multiple 'pssh' in the initData to find the 'pssh' box which is Key System appropriate.</p>
+ <section id="init-data" typeof="bibo:Chapter" resource="#init-data" rel="bibo:Chapter">
+ <!--OddPage--><h2 aria-level="1" role="heading" id="h2_init-data"><span class="secno">3. </span>Initialization Data and Events</h2>
+ <p>Common Encryption files may contain one or more protection system specific header ('pssh') boxes, each for a unique SystemID at each location where a 'pssh' box is necessary.</p>
+ <p><a href="encrypted-media.html#initialization-data">Initialization Data</a> is always one or more concatenated 'pssh' boxes. The CDM must be able to examine multiple 'pssh' boxes in the Initialization Data to find a 'pssh' box that it supports.</p>
<p>Each time one or more 'pssh' boxes are encountered, the <a href="encrypted-media.html#algorithms-initdata-encountered">Initialization Data Encountered</a> algorithm shall be invoked with <var title="">initDataType</var> = "cenc" and <var title="">initData</var> = the 'pssh' box(es). Multiple 'pssh' boxes must be provided together if and only if they appear directly next to each other in the file.</p>
<p>If a supported 'pssh' box (based on SystemID) is not found while processing the <var>initData</var> in the <code><a href="encrypted-media.html#dom-createsession">createSession()</a></code> algorithm, follow the algorithm step for "<var>init data</var> is not supported by the <var>cdm</var>."</p>
-
- <div class="note"><div class="note-title" id="h_note_1" role="heading" aria-level="2"><span>Note</span></div><p>'pssh' boxes stored in movie fragment boxes are intended to store keys referenced by KID in a sample group description contained in that movie fragment, where the KID in the sample group description overrides the default_KID specified for the track in the track encryption box ('tenc'). Each 'moof'/'pssh' must protect the contained keys with a SystemID specific method. Sample groups and 'pssh' key storage in movie fragments enable keys to be changed and accessed without interruption during playback of a track.</p></div>
- <div class="note"><div class="note-title" id="h_note_2" role="heading" aria-level="2"><span>Note</span></div><p>ISO Common Encryption 2nd Edition [<cite><a class="bibref" href="#bib-CENC-2ND">CENC-2ND</a></cite>] also specifies storage of a 'pssh' box base64 encoded in an XML element of the form <cenc:pssh (base64 'pssh')>. For instance, DASH manifests may provide 'pssh' boxes in this format, each contained in a ContentProtection Descriptor element identified by a SystemID. These 'pssh' boxes may be decoded and concatenated by an application to provide equivalent Initialization Data to that stored in movie or movie fragment boxes.</p></div>
-
+
+ <div class="note"><div class="note-title" aria-level="2" role="heading" id="h_note_1"><span>Note</span></div><p class="">'pssh' boxes stored in movie fragment boxes are intended to store keys referenced by KID in a sample group description contained in that movie fragment, where the KID in the sample group description overrides the default_KID specified for the track in the track encryption box ('tenc'). Each 'moof'/'pssh' box must protect the contained keys with a SystemID specific method. Sample groups and 'pssh' key storage in movie fragments enable keys to be changed and accessed without interruption during playback of a track.</p></div>
+ <div class="note"><div class="note-title" aria-level="2" role="heading" id="h_note_2"><span>Note</span></div><p class="">ISO Common Encryption 2nd Edition [<cite><a class="bibref" href="#bib-CENC-2ND">CENC-2ND</a></cite>] also specifies storage of a 'pssh' box base64 encoded in an XML element of the form <cenc:pssh (base64 'pssh')>. For instance, DASH manifests may provide 'pssh' boxes in this format, each contained in a ContentProtection Descriptor element identified by a SystemID. These 'pssh' boxes may be decoded and concatenated by an application to provide equivalent Initialization Data to that stored in movie or movie fragment boxes.</p></div>
</section>
- <section id="common-system" typeof="bibo:Chapter" rel="bibo:Chapter" resource="#common-system">
- <!--OddPage--><h2 id="h2_common-system" role="heading" aria-level="1"><span class="secno">4. </span>Common SystemID and PSSH Box Format</h2>
+ <section id="common-system" typeof="bibo:Chapter" resource="#common-system" rel="bibo:Chapter">
+ <!--OddPage--><h2 aria-level="1" role="heading" id="h2_common-system"><span class="secno">4. </span>Common SystemID and PSSH Box Format</h2>
<p>This section defines a common open SystemID and PSSH box format for use with EME.
Key System implementations supporting ISO Common Encryption should support this SystemID and format, though they may prefer another SystemID when present in the Initialization Data.
It is also recommended that media resources contain appropriate PSSH box(es) for this SystemID so that they may be used by any Key System implementation that supports it.</p>
<p><a href="encrypted-media.html#clear-key">Clear Key</a> uses this SystemID for ISO Common Encryption content.
When <code><a href="encrypted-media.html#dom-createsession">createSession()</a></code> is called with <var>initDataType</var> "cenc", the Clear Key CDM will use the PSSH box with this SystemID to generate a license request.
</p>
- <section id="common-system-definition" typeof="bibo:Chapter" rel="bibo:Chapter" resource="#common-system-definition">
- <h3 id="h3_common-system-definition" role="heading" aria-level="2"><span class="secno">4.1 </span>Definition</h3>
+ <section id="common-system-definition" typeof="bibo:Chapter" resource="#common-system-definition" rel="bibo:Chapter">
+ <h3 aria-level="2" role="heading" id="h3_common-system-definition"><span class="secno">4.1 </span>Definition</h3>
<p>The SystemID is 1077efec-c0b2-4d02-ace3-3c1e52e2fb4b.</p>
<p>The PSSH box format is as follows. It follows version 1 of the 'pssh' box as defined in ISO Common Encryption 2nd Edition [<cite><a class="bibref" href="#bib-CENC-2ND">CENC-2ND</a></cite>].</p>
<dl>
@@ -387,11 +385,11 @@
<dt>KID and KID_count</dt>
<dd>The key ID(s) represented by the PSSH box. For example, those key ID(s) used by the Movie ('moov') or Movie Fragment ('moof').</dd>
<dt>Data and DataSize</dt>
- <dd>Reserved for future use. DataSize <em title="SHALL" class="rfc2119">SHALL</em> be set to 0 when constructing this box. When processing, if dataSize is non-zero the Data field <em title="SHALL" class="rfc2119">SHALL</em> be ignored.</dd>
+ <dd>Reserved for future use. DataSize <em class="rfc2119" title="SHALL">SHALL</em> be set to 0 when constructing this box. When processing, if dataSize is non-zero the Data field <em class="rfc2119" title="SHALL">SHALL</em> be ignored.</dd>
</dl>
</section>
<section class="informative" id="example">
- <h3 id="h3_example" role="heading" aria-level="2"><span class="secno">4.2 </span>Example</h3><p><em>This section is non-normative.</em></p>
+ <h3 aria-level="2" role="heading" id="h3_example"><span class="secno">4.2 </span>Example</h3><p><em>This section is non-normative.</em></p>
<p>The following example contains two key IDs.</p>
<div class="example"><div class="example-title"><span>Example 1</span></div><pre class="example">var pssh = [
0x00, 0x00, 0x00, 0x4c, 0x70, 0x73, 0x73, 0x68, // BMFF box header (76 bytes, 'pssh')
@@ -410,7 +408,7 @@
-<form id="bug-assist-form" action="//www.w3.org/Bugs/Public/enter_bug.cgi" target="_blank">See a problem? Select text and <input accesskey="f" style="font-family: Tahoma,sans-serif; font-size: 10px;" type="submit" value="file a bug"><input name="comment" type="hidden" value=""><input name="product" type="hidden" value="HTML WG"><input name="component" type="hidden" value="Encrypted Media Extensions">.</form><section class="appendix" id="references" typeof="bibo:Chapter" rel="bibo:Chapter" resource="#references"><!--OddPage--><h2 id="h2_references" role="heading" aria-level="1"><span class="secno">A. </span>References</h2><section id="normative-references" typeof="bibo:Chapter" rel="bibo:Chapter" resource="#normative-references"><h3 id="h3_normative-references" role="heading" aria-level="2"><span class="secno">A.1 </span>Normative references</h3><dl class="bibliography" about=""><dt id="bib-BMFF">[BMFF]</dt><dd rel="dcterms:requires"><a href="http://standards.iso.org/ittf/PubliclyAvailableStandards/c061988_ISO_IEC_14496-12_2012.zip"><cite>ISO/IEC 14496-12:2012, Information technology -- Coding of audio-visual objects -- Part 12: ISO base media file format</cite></a>. International Standard. URL: <a href="http://standards.iso.org/ittf/PubliclyAvailableStandards/c061988_ISO_IEC_14496-12_2012.zip">http://standards.iso.org/ittf/PubliclyAvailableStandards/c061988_ISO_IEC_14496-12_2012.zip</a>
+<form id="bug-assist-form" action="//www.w3.org/Bugs/Public/enter_bug.cgi" target="_blank">See a problem? Select text and <input type="submit" accesskey="f" value="file a bug" style="font-family: Tahoma, sans-serif; font-size: 10px;"><input type="hidden" name="comment" value=""><input type="hidden" name="product" value="HTML WG"><input type="hidden" name="component" value="Encrypted Media Extensions">.</form><section id="references" class="appendix" typeof="bibo:Chapter" resource="#references" rel="bibo:Chapter"><!--OddPage--><h2 aria-level="1" role="heading" id="h2_references"><span class="secno">A. </span>References</h2><section id="normative-references" typeof="bibo:Chapter" resource="#normative-references" rel="bibo:Chapter"><h3 aria-level="2" role="heading" id="h3_normative-references"><span class="secno">A.1 </span>Normative references</h3><dl class="bibliography" about=""><dt id="bib-BMFF">[BMFF]</dt><dd rel="dcterms:requires"><a href="http://standards.iso.org/ittf/PubliclyAvailableStandards/c061988_ISO_IEC_14496-12_2012.zip"><cite>ISO/IEC 14496-12:2012, Information technology -- Coding of audio-visual objects -- Part 12: ISO base media file format</cite></a>. International Standard. URL: <a href="http://standards.iso.org/ittf/PubliclyAvailableStandards/c061988_ISO_IEC_14496-12_2012.zip">http://standards.iso.org/ittf/PubliclyAvailableStandards/c061988_ISO_IEC_14496-12_2012.zip</a>
</dd><dt id="bib-CENC-1ST">[CENC-1ST]</dt><dd rel="dcterms:requires"><a href="https://www.iso.org/obp/ui/#iso:std:iso-iec:23001:-7:ed-1:v1"><cite>ISO/IEC 23001-7:2012, Information technology -- MPEG systems technologies -- Part 7: Common encryption in ISO base media file format files</cite></a>. International Standard. URL: <a href="https://www.iso.org/obp/ui/#iso:std:iso-iec:23001:-7:ed-1:v1">https://www.iso.org/obp/ui/#iso:std:iso-iec:23001:-7:ed-1:v1</a>
</dd><dt id="bib-CENC-2ND">[CENC-2ND]</dt><dd rel="dcterms:requires"><cite>ISO/IEC DIS 23001-7 2nd Edition</cite>. Draft International Standard.
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