forked from w3c/encrypted-media
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathinitdata-format-registry.html
363 lines (251 loc) · 15.3 KB
/
initdata-format-registry.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
<!DOCTYPE html>
<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>Encrypted Media Extensions Stream Format and Initialization Data Format Registry</title>
<!-- script to register bugs -->
<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>
<style>/*****************************************************************
* ReSpec 3 CSS
* Robin Berjon - http://berjon.com/
*****************************************************************/
/* --- INLINES --- */
em.rfc2119 {
text-transform: lowercase;
font-variant: small-caps;
font-style: normal;
color: #900;
}
h1 acronym, h2 acronym, h3 acronym, h4 acronym, h5 acronym, h6 acronym, a acronym,
h1 abbr, h2 abbr, h3 abbr, h4 abbr, h5 abbr, h6 abbr, a abbr {
border: none;
}
dfn {
font-weight: bold;
}
a.internalDFN {
color: inherit;
border-bottom: 1px solid #99c;
text-decoration: none;
}
a.externalDFN {
color: inherit;
border-bottom: 1px dotted #ccc;
text-decoration: none;
}
a.bibref {
text-decoration: none;
}
cite .bibref {
font-style: normal;
}
code {
color: #C83500;
}
/* --- TOC --- */
.toc a, .tof a {
text-decoration: none;
}
a .secno, a .figno {
color: #000;
}
ul.tof, ol.tof {
list-style: none outside none;
}
.caption {
margin-top: 0.5em;
font-style: italic;
}
/* --- TABLE --- */
table.simple {
border-spacing: 0;
border-collapse: collapse;
border-bottom: 3px solid #005a9c;
}
.simple th {
background: #005a9c;
color: #fff;
padding: 3px 5px;
text-align: left;
}
.simple th[scope="row"] {
background: inherit;
color: inherit;
border-top: 1px solid #ddd;
}
.simple td {
padding: 3px 10px;
border-top: 1px solid #ddd;
}
.simple tr:nth-child(even) {
background: #f0f6ff;
}
/* --- DL --- */
.section dd > p:first-child {
margin-top: 0;
}
.section dd > p:last-child {
margin-bottom: 0;
}
.section dd {
margin-bottom: 1em;
}
.section dl.attrs dd, .section dl.eldef dd {
margin-bottom: 0;
}
@media print {
.removeOnSave {
display: none;
}
}
</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" src="https://www.w3.org/Icons/w3c_home" alt="W3C"></a>
</p>
<h1 class="title p-name" id="title" property="dcterms:title">Encrypted Media Extensions Stream Format and Initialization Data Format Registry</h1>
<h2 property="dcterms:issued" datatype="xsd:dateTime" content="2014-11-26T19:23:04.000Z" id="w3c-editor-s-draft-26-november-2014"><abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft <time class="dt-published" datetime="2014-11-26">26 November 2014</time></h2>
<dl>
<dt>This version:</dt>
<dd><a class="u-url" href="https://w3c.github.io/encrypted-media/initdata-format-registry.html">https://w3c.github.io/encrypted-media/initdata-format-registry.html</a></dd>
<dt>Latest published version:</dt>
<dd><a href="http://www.w3.org/TR/encrypted-media/">http://www.w3.org/TR/encrypted-media/</a></dd>
<dt>Latest editor's draft:</dt>
<dd><a href="https://w3c.github.io/encrypted-media/initdata-format-registry.html">https://w3c.github.io/encrypted-media/initdata-format-registry.html</a></dd>
<dt>Editors:</dt>
<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="https://www.google.com/">Google Inc.</a></span>
</dd>
<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="https://www.microsoft.com/">Microsoft Corporation</a></span>
</dd>
<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="https://www.netflix.com/">Netflix Inc.</a></span>
</dd>
<dt>Repository:</dt>
<dd>
<a href="https://github.com/w3c/encrypted-media/">https://github.com/w3c/encrypted-media/</a>
</dd>
</dl>
<p class="copyright">
<a href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> ©
2014
<a href="http://www.w3.org/"><abbr title="World Wide Web Consortium">W3C</abbr></a><sup>®</sup>
(<a href="http://www.csail.mit.edu/"><abbr title="Massachusetts Institute of Technology">MIT</abbr></a>,
<a href="http://www.ercim.eu/"><abbr title="European Research Consortium for Informatics and Mathematics">ERCIM</abbr></a>,
<a href="http://www.keio.ac.jp/">Keio</a>, <a href="http://ev.buaa.edu.cn/">Beihang</a>),
All Rights Reserved.
<abbr title="World Wide Web Consortium">W3C</abbr> <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>,
<a href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a> and
<a href="http://www.w3.org/Consortium/Legal/copyright-documents">document use</a>
rules apply.
</p>
<hr>
</div>
<section id="abstract" class="introductory" property="dcterms:abstract" datatype="" typeof="bibo:Chapter" resource="#abstract" rel="bibo:Chapter"><h2 role="heading" id="h2_abstract">Abstract</h2>
<p>This specification defines the stream and initialization data formats for use with the <a href="index.html#">Encrypted Media Extensions</a>.</p>
</section><section id="sotd" class="introductory" typeof="bibo:Chapter" resource="#sotd" rel="bibo:Chapter"><h2 role="heading" id="h2_sotd">Status of This Document</h2>
<p>
<em>This section describes the status of this document at the time of its publication.
Other documents may supersede this document. A list of current <abbr title="World Wide Web Consortium">W3C</abbr> publications and the
latest revision of this technical report can be found in the <a href="http://www.w3.org/TR/"><abbr title="World Wide Web Consortium">W3C</abbr> technical reports index</a> at
http://www.w3.org/TR/.</em>
</p>
<p>The Working Group maintains <a href="https://www.w3.org/brief/MjY5"> 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>
<p>
This document was published by the <a href="http://www.w3.org/html/wg/">HTML Working Group</a> as an Editor's Draft.
If you wish to make comments regarding this document, please send them to
<a href="mailto:[email protected]">[email protected]</a>
(<a href="mailto:[email protected]?subject=subscribe">subscribe</a>,
<a href="http://lists.w3.org/Archives/Public/public-html-media/">archives</a>).
All comments are welcome.
</p>
<p>
Publication as an Editor's Draft does not imply endorsement by the <abbr title="World Wide Web Consortium">W3C</abbr>
Membership. This is a draft document and may be updated, replaced or obsoleted by other
documents at any time. It is inappropriate to cite this document as other than work in
progress.
</p>
<p>
This document was produced by a group operating under the
<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>.
<abbr title="World Wide Web Consortium">W3C</abbr> maintains a <a href="https://www.w3.org/2004/01/pp-impl/40318/status" rel="disclosure">public list of any patent
disclosures</a>
made in connection with the deliverables of the group; that page also includes
instructions for disclosing a patent. An individual who has actual knowledge of a patent
which the individual believes contains
<a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#def-essential">Essential
Claim(s)</a> must disclose the information in accordance with
<a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#sec-Disclosure">section
6 of the <abbr title="World Wide Web Consortium">W3C</abbr> Patent Policy</a>.
</p>
<p>This document is governed by the <a id="w3c_process_revision" href="http://www.w3.org/2014/Process-20140801/">1 August 2014 <abbr title="World Wide Web Consortium">W3C</abbr> Process Document</a>.
</p>
</section><section id="toc"><h2 class="introductory" role="heading" id="h2_toc">Table of Contents</h2><ul class="toc" role="directory" id="respecContents"><li class="tocline"><a href="#purpose" class="tocxref"><span class="secno">1. </span>Purpose</a></li><li class="tocline"><a href="#organization" class="tocxref"><span class="secno">2. </span>Organization</a></li><li class="tocline"><a href="#entry-requirements" class="tocxref"><span class="secno">3. </span>Registration Entry Requirements</a></li><li class="tocline"><a href="#registry" class="tocxref"><span class="secno">4. </span>Registry</a></li></ul></section>
<section id="purpose" typeof="bibo:Chapter" resource="#purpose" rel="bibo:Chapter">
<!--OddPage--><h2 role="heading" id="h2_purpose"><span class="secno">1. </span>Purpose</h2>
<p>This registry is intended to enhance interoperability among implementations and users of encrypted media streams with the
<a href="index.html#">Encrypted Media Extensions</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.
</p></section>
<section id="organization" typeof="bibo:Chapter" resource="#organization" rel="bibo:Chapter">
<!--OddPage--><h2 role="heading" id="h2_organization"><span class="secno">2. </span>Organization</h2>
<p>The registry maintains a mapping between <a href="index.html#initialization-data-type">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" typeof="bibo:Chapter" resource="#entry-requirements" rel="bibo:Chapter">
<!--OddPage--><h2 role="heading" id="h2_entry-requirements"><span class="secno">3. </span>Registration Entry Requirements</h2>
<ol>
<li>Each entry must include a unique <a href="index.html#initialization-data-type">Initialization Data Type</a> string. If the byte stream format is derived-from an existing file format, then it should use the
MIME-type/subtype pairs typically used for the file format.</li>
<li>Each entry must include a link that references a publically 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).</li>
<li>Candidate entries must be announced on <a href="[email protected]">[email protected]</a>(<a href="[email protected]">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.</li>
</ol>
</section>
<section id="registry" typeof="bibo:Chapter" resource="#registry" rel="bibo:Chapter">
<!--OddPage--><h2 role="heading" id="h2_registry"><span class="secno">4. </span>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>
<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></body></html>