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initdata-format-registry-respec.html
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Encrypted Media Extensions Stream Format and Initialization Data Format Registry</title>
<script src="https://www.w3.org/Tools/respec/respec-w3c-common" class="remove"></script>
<script src="encrypted-media.js" class="remove"></script>
<script class="remove">
var respecConfig = {
// specification status (e.g. WD, LCWD, NOTE, etc.). If in doubt use ED.
specStatus: "ED",
// the specification's short name, as in http://www.w3.org/TR/short-name/
shortName: "encrypted-media", <!-- The registry does not have its own short name. -->
// if there a publicly available Editor's Draft, this is the link
edDraftURI: "https://w3c.github.io/encrypted-media/initdata-format-registry.html",
// if this is a LCWD, uncomment and set the end of its review period
// lcEnd: "2009-08-05",
// editors, add as many as you like
// only "name" is required
editors: [
{ name: "David Dorwin", url: "",
company: "Google Inc.", companyURL: "https://www.google.com/" },
{ name: "Adrian Bateman", url: "",
company: "Microsoft Corporation", companyURL: "https://www.microsoft.com/" },
{ name: "Mark Watson", url: "",
company: "Netflix Inc.", companyURL: "https://www.netflix.com/" },
],
otherLinks: [
{ key: "Repository",
href: "https://github.com/w3c/encrypted-media/"}
],
emeDefGroupName: "format-registry",
emeUnusedGroupNameExcludeList: ["encrypted-media",
"eme-references-from-registry"
],
// name of the WG
wg: "HTML Working Group",
// URI of the public WG page
wgURI: "http://www.w3.org/html/wg/",
// name (without the @w3c.org) of the public mailing to which comments are due
wgPublicList: "public-html-media",
// URI of the patent status for this WG, for Rec-track documents
// !!!! IMPORTANT !!!!
// This is important for Rec-track documents, do not copy a patent URI from a random
// document unless you know what you're doing. If in doubt ask your friendly neighbourhood
// Team Contact.
wgPatentURI: "https://www.w3.org/2004/01/pp-impl/40318/status",
noIDLIn: true,
scheme: "https",
// Empty definitions for objects declared in the document are here to
// prevent error messages from being displayed for references to these objects.
definitionMap: {},
preProcess: [ encryptedMediaPreProcessor ],
// Empty definitions for objects declared in the document are here to
// prevent error messages from being displayed for references to these objects.
definitionMap: {},
postProcess: [ encryptedMediaPostProcessor ],
};
</script>
<!-- script to register bugs -->
<!-- Disabled unless/until it supports GitHub issues.
<script src="https://w3c.github.io/webcomponents/assets/scripts/bug-assist.js"></script>
<meta name="bug.product" content="HTML WG">
<meta name="bug.component" content="Encrypted Media Extensions">
-->
<link rel="stylesheet" href="eme.css">
<style type="text/css">
#registry table { border-collapse: collapse; border-style: hidden hidden none hidden; }
#registry table thead, table tbody { border-bottom: solid; }
#registry table tbody th:first-child { border-left: solid; }
#registry table tbody th { text-align: left; }
#registry table td, table th { border-left: solid; border-right: solid; border-bottom: solid thin; vertical-align: top; padding: 0.2em; }
</style>
</head>
<body>
<section id="abstract">
<p>This specification defines the stream and initialization data formats for use with the <a def-id="eme-spec"></a>.</p>
</section>
<section id="sotd">
<p>The working group maintains <a href="https://github.com/w3c/encrypted-media/issues">a list of all bug reports that the editors have not yet tried to address</a>.</p>
<p>Implementors should be aware that this specification is not stable. <strong>Implementors who are not taking part in the discussions are likely to find the specification changing out from under them in incompatible ways.</strong> Vendors interested in implementing this specification before it eventually reaches the Candidate Recommendation stage should join the mailing list mentioned below and take part in the discussions.</p>
</section>
<section id="purpose">
<h2>Purpose</h2>
<p>This registry is intended to enhance interoperability among implementations and users of encrypted media streams with the
<a def-id="eme-spec"></a> (EME) specification. In particular, this registry provides the means (1) to identify
and avoid collisions among initialization data type strings, and (2) to disclose information about encrypted data formats accepted by EME
implementations to promote interoperability.
</section>
<section id="organization">
<h2>Organization</h2>
<p>The registry maintains a mapping between <a def-id="initialization-data-type"></a> strings and encryption format specifications. The encryption format specifications describe the
structure and semantics of initialization data.</p>
<p>This registry is not intended to include any information on whether a byte stream format is encumbered by intellectual property claims. Implementors and users
are advised to seek appropriate legal counsel in this matter if they intend to implement or use a specific byte stream format.</p>
</section>
<section id="entry-requirements">
<h2>Registration Entry Requirements</h2>
<ol>
<li><p>Each entry must include a unique <a def-id="initialization-data-type"></a> string.</p></li>
<li>
<p>Each entry must include a link that references a publicly available specification.
It is RECOMMENDED that such a specification be made available without cost (other than reasonable shipping and handling if not available by online means).
</p>
</li>
<li>
<p>Candidate entries must be announced on <a href="public-html-media@w3.org">public-html-media@w3.org</a>(<a href="public-html-media-request@w3.org">subscribe</a>,
<a href="http://lists.w3.org/Archives/Public/public-html-media/">archives</a>) so they can be discussed and evaluated for compliance before being added to the registry.
</p>
</li>
<li><p>Per the <a def-id="eme-spec"></a> specification, the media container for a stream format MUST NOT be encrypted.</p></li>
<li><p>Per the <a def-id="eme-spec"></a> specification, entries MUST be fully specified and support "common encryption" such that the content can decrypted in a fully specified and compatible way when a key or keys are provided.</p></li>
</ol>
</section>
<section id="registry">
<h2>Registry</h2>
<table>
<thead>
<tr>
<th>Initialization Data Type</th>
<th>Public Specification(s)</th>
</tr>
</thead>
<tbody>
<tr>
<td>
cenc
</td>
<td><a href="cenc-format.html">ISO Common Encryption EME Stream Format and Initialization Data</a></td>
</tr>
<tr>
<td>
keyids
</td>
<td><a href="keyids-format.html">Key IDs Initialization Data Format</a></td>
</tr>
<tr>
<td>
webm
</td>
<td><a href="webm-format.html">WebM EME Stream Format and Initialization Data</a></td>
</tr>
</tbody>
</table>
</section>
</body>
</html>