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title="JavaScript">JavaScript</a> <ul><li><a href="/wiki/WebCL" title="WebCL">WebCL</a></li> <li><a href="/wiki/HTMX" class="mw-redirect" title="HTMX">HTMX</a></li></ul></li> <li><a href="/wiki/Web3D" title="Web3D">Web3D</a> <ul><li><a href="/wiki/WebGL" title="WebGL">WebGL</a></li> <li><a href="/wiki/WebGPU" title="WebGPU">WebGPU</a></li> <li><a href="/wiki/WebXR" title="WebXR">WebXR</a></li></ul></li> <li><a href="/wiki/World_Wide_Web_Consortium" title="World Wide Web Consortium">W3C</a> <ul><li><a href="/wiki/W3C_Markup_Validation_Service" title="W3C Markup Validation Service">Validator</a></li></ul></li> <li><a href="/wiki/WHATWG" title="WHATWG">WHATWG</a></li> <li><a href="/wiki/Quirks_mode" title="Quirks mode">Quirks mode</a></li> <li><a href="/wiki/Web_storage" title="Web storage">Web storage</a></li> <li><a href="/wiki/Browser_engine" title="Browser engine">Rendering engine</a></li></ul></td> </tr><tr><th class="sidebar-heading"> Comparisons</th></tr><tr><td class="sidebar-content hlist"> <ul><li><a href="/wiki/Comparison_of_document_markup_languages" title="Comparison of document markup languages">Document markup languages</a></li> <li><a href="/wiki/Comparison_of_browser_engines" title="Comparison of browser engines">Comparison of browser engines</a></li></ul></td> </tr><tr><td class="sidebar-navbar" style="border-top:1px solid #aaa;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:HTML" title="Template:HTML"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:HTML" title="Template talk:HTML"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:HTML" title="Special:EditPage/Template:HTML"><abbr title="Edit this template">e</abbr></a></li></ul></div></td></tr></tbody></table> <p>The <a href="/wiki/HTML5" title="HTML5">HTML5</a> draft specification adds <code>video</code> and <code>audio</code> <a href="/wiki/HTML_element" title="HTML element">elements</a> for <b>embedding video and audio in HTML documents</b>. The specification had formerly recommended support for playback of <b><a href="/wiki/Theora" title="Theora">Theora</a> video and <a href="/wiki/Vorbis" title="Vorbis">Vorbis</a> audio encapsulated in <a href="/wiki/Ogg" title="Ogg">Ogg</a> <a href="/wiki/Container_format_(digital)" class="mw-redirect" title="Container format (digital)">containers</a></b> to provide for easier distribution of audio and video over the internet by using <a href="/wiki/Open_standard" title="Open standard">open standards</a>, but the recommendation was soon after dropped. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Motivation">Motivation</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Use_of_Ogg_formats_in_HTML5&action=edit&section=1" title="Edit section: Motivation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="box-Original_research plainlinks metadata ambox ambox-content ambox-Original_research" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/40px-Ambox_important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/60px-Ambox_important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/80px-Ambox_important.svg.png 2x" data-file-width="40" data-file-height="40" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>possibly contains <a href="/wiki/Wikipedia:No_original_research" title="Wikipedia:No original research">original research</a></b>.<span class="hide-when-compact"> Please <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Use_of_Ogg_formats_in_HTML5&action=edit">improve it</a> by <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verifying</a> the claims made and adding <a href="/wiki/Wikipedia:Citing_sources#Inline_citations" title="Wikipedia:Citing sources">inline citations</a>. Statements consisting only of original research should be removed.</span> <span class="date-container"><i>(<span class="date">January 2012</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>Because some visitors and publishers choose not to take part in the use of <a href="/wiki/Proprietary_software" title="Proprietary software">proprietary software</a>, web content has been made available through <a href="/wiki/Open_standard" title="Open standard">open standards</a> in order to reach these users. As multimedia is already mainstream on the web through proprietary data formats (such as <a href="/wiki/Windows_Media_Video" title="Windows Media Video">Windows Media Video</a> and <a href="/wiki/MPEG-4_Part_14" class="mw-redirect" title="MPEG-4 Part 14">MP4</a>) and browser <a href="/wiki/Plug-in_(computing)" title="Plug-in (computing)">plugins</a> (such as <a href="/wiki/Adobe_Flash_Player" title="Adobe Flash Player">Adobe Flash Player</a>), developers<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Manual_of_Style/Words_to_watch#Unsupported_attributions" title="Wikipedia:Manual of Style/Words to watch"><span title="The material near this tag possibly uses too-vague attribution or weasel words. (January 2018)">who?</span></a></i>]</sup> had hoped Theora and Vorbis would become part of the HTML5 specification.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Users affiliated with the free software movement claimed the following advantages: </p> <ul><li>The potential for universal adoption of Theora and Vorbis, no matter the computer or the user, would ease "codec hell" by eliminating an unnecessary amount of codecs required to view and publish videos to a select few.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (January 2012)">citation needed</span></a></i>]</sup></li> <li>Browser plugins needed to accommodate the many different codecs would then become a thing of the past: <ul><li>Browsers could handle the playback of Theora and Vorbis and allow the user to customize the manner in which that was done.</li> <li>Bugs and exploits in obsolete versions of those plugins would affect the user less, as they are phased out; the loss of multiple attack vectors would happen once browser plugins were ultimately removed.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (January 2012)">citation needed</span></a></i>]</sup></li> <li>The HTML5-conformant player, not having to be coded for compatibility with different browsers, could make bugs and exploits easier to find during browser development, and any exploits found would only be able to target that one browser.<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify"><span title="The text near this tag may need clarification or removal of jargon. (January 2012)">clarification needed</span></a></i>]</sup></li></ul></li> <li><a href="/wiki/Free_software" title="Free software">Free software</a> encoders would compete with rival proprietary encoders, increasing encoder quality through competition.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (January 2012)">citation needed</span></a></i>]</sup></li> <li>Embedding of multimedia by the use of clear and straightforward <code>video</code> and <code>audio</code> elements would require less effort than mastering the <a href="/wiki/HTML_element#Images_and_objects" title="HTML element"><code>object</code></a> element or learning <a href="/wiki/ActionScript" title="ActionScript">ActionScript</a> as required by Adobe Flash.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (January 2012)">citation needed</span></a></i>]</sup></li></ul> <p><a href="/wiki/Chief_technical_officer" class="mw-redirect" title="Chief technical officer">CTO</a> at <a href="/wiki/Opera_Software" class="mw-redirect" title="Opera Software">Opera Software</a>, <a href="/wiki/H%C3%A5kon_Wium_Lie" title="Håkon Wium Lie">Håkon Wium Lie</a> explained in a Google tech talk entitled "The <video> element" the proposal of Theora as the video format for HTML5:<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <style data-mw-deduplicate="TemplateStyles:r1244412712">.mw-parser-output .templatequote{overflow:hidden;margin:1em 0;padding:0 32px}.mw-parser-output .templatequotecite{line-height:1.5em;text-align:left;margin-top:0}@media(min-width:500px){.mw-parser-output .templatequotecite{padding-left:1.6em}}</style><blockquote class="templatequote"><p>I believe very strongly, that we need to agree on some kind of baseline video format if [the video element] is going to succeed. [...] We want a freely implementable open standard to hold the content we put out. That's why we developed the <a href="/wiki/Portable_Network_Graphics" class="mw-redirect" title="Portable Network Graphics">PNG</a> image format. [...] PNG [...] came late to the party. Therefore I think it's important that from the beginning we think about this.</p></blockquote> <p>After the presentation, Lie was asked whether <a href="/wiki/Opera_(browser)" class="mw-redirect" title="Opera (browser)">Opera</a> will support other formats than Ogg: </p> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1244412712"><blockquote class="templatequote"><p>My opinion is that browsers shouldn't support other codecs, at least not in the beginning, until we have established a baseline format. [...] We don't want to contaminate <video> with other formats.</p></blockquote> <div class="mw-heading mw-heading2"><h2 id="Support">Support</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Use_of_Ogg_formats_in_HTML5&action=edit&section=2" title="Edit section: Support"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Opera_Software" class="mw-redirect" title="Opera Software">Opera Software</a> and <a href="/wiki/Mozilla_Foundation" title="Mozilla Foundation">Mozilla</a> have been advocates for including the Ogg formats into the HTML standard.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Support has been available in experimental builds of <a href="/wiki/Opera_(browser)" class="mw-redirect" title="Opera (browser)">Opera</a> 9.5 since 2007,<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> and Ogg Theora is fully supported since <a href="/wiki/Opera_10" class="mw-redirect" title="Opera 10">Opera 10.50</a>.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Gecko_(layout_engine)" class="mw-redirect" title="Gecko (layout engine)">Gecko</a> 1.9.1 (browsers based on this engine include <a href="/wiki/Mozilla_Firefox_3.5" class="mw-redirect" title="Mozilla Firefox 3.5">Mozilla Firefox 3.5</a> and <a href="/wiki/SeaMonkey" title="SeaMonkey">SeaMonkey</a> 2.0<sup id="cite_ref-seamonkey2_6-0" class="reference"><a href="#cite_note-seamonkey2-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>), released on June 30, 2009, was the first non-experimental layout engine to support Ogg formats. <a href="/wiki/Google_Chrome" title="Google Chrome">Google Chrome</a> included support in their 3.0 release (September 2009),<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> along with support for <a href="/wiki/H.264/MPEG-4_AVC" class="mw-redirect" title="H.264/MPEG-4 AVC">H.264</a>. However, they did not support <a href="/wiki/MPEG-1" title="MPEG-1">MPEG-1</a> (the parts patents on which are thought to have expired), citing concerns over performance.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Microsoft began work in October 2017 on implementing support for Ogg, Vorbis, and Theora in Windows 10 and <a href="/wiki/Microsoft_Edge" title="Microsoft Edge">Microsoft Edge</a>.<sup id="cite_ref-firewalldvsufw_9-0" class="reference"><a href="#cite_note-firewalldvsufw-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>In October 2023, Google announced their plans to deprecate and remove support for the Theora video codec starting with experiments reducing Theora support in Chrome 120 and a full removal in Chrome 123, Google states that the reason for the removal is due to low use and security risks associated with the codec.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Opposition">Opposition</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Use_of_Ogg_formats_in_HTML5&action=edit&section=3" title="Edit section: Opposition"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>On October 17, 2007, the <a href="/wiki/World_Wide_Web_Consortium" title="World Wide Web Consortium">World Wide Web Consortium</a> encouraged interested people to take part in a "Video on the Web Workshop", held on December 12, 2007, for two days.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> A number of global companies were involved, submitting position papers.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Among them, <a href="/wiki/Nokia" title="Nokia">Nokia</a>'s paper<sup id="cite_ref-nokia-ogg_14-0" class="reference"><a href="#cite_note-nokia-ogg-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> states that "a W3C-led standardization of a 'free' codec, or the active endorsement of proprietary technology such as Ogg [...] by W3C, is, in our opinion, not helpful". <a href="/wiki/Xiph.org" class="mw-redirect" title="Xiph.org">Xiph.org</a>'s codecs, while licensed under a <a href="/wiki/BSD_licenses#BSD-style_licenses" title="BSD licenses">BSD-style</a> <a href="/wiki/Permissive_free_software_license" class="mw-redirect" title="Permissive free software license">permissive free software license</a>, implement a standard controlled by Xiph.org themselves, rather than a multi-vendor community such as MPEG. <a href="/wiki/Apple_Inc." title="Apple Inc.">Apple Inc.</a>, a member of the <a href="/wiki/MPEG_LA" title="MPEG LA">MPEG LA</a>, has also opposed the inclusion of Ogg formats in the HTML standard on the grounds that <a href="/wiki/H.264" class="mw-redirect" title="H.264">H.264</a> performs better and is already more widely supported, citing patents on their codec's efficiency and the lack of precedents of "Placing requirements on format support", even at the "SHOULD" level, in HTML specifications.<sup id="cite_ref-apple-ogg_15-0" class="reference"><a href="#cite_note-apple-ogg-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Recommendation_retracted">Recommendation retracted</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Use_of_Ogg_formats_in_HTML5&action=edit&section=4" title="Edit section: Recommendation retracted"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>On December 10, 2007, the HTML 5 specification was updated,<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> replacing the reference to Theora and Vorbis with a placeholder:<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> </p> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1244412712"><blockquote class="templatequote"><p>It would be helpful for interoperability if all browsers could support the same codecs. However, there are no known codecs that satisfy all the current players: we need a codec that is known to not require per-unit or per-distributor licensing, that is compatible with the open source development model, that is of sufficient quality as to be usable, and that is not an additional submarine patent risk for large companies. This is an ongoing issue and this section will be updated once more information is available.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup></p></blockquote> <p>The removal of the Ogg formats from the specification made it completely file format neutral, like previous versions of HTML. The decision was criticized by a number of <a href="/wiki/Web_developer" title="Web developer">Web developers</a>. A follow-up discussion also occurred on the W3C questions and answers blog.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p><p>In response to criticism, the <a href="/wiki/WHATWG" title="WHATWG">WHATWG</a> has cited concerns over the Ogg formats still being within patent lifetime and thus vulnerable to unknown patents.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> Such <a href="/wiki/Submarine_patent" title="Submarine patent">submarine patents</a> may also exist for formats like <a href="/wiki/MP3" title="MP3">MP3</a>. Also, the <a href="/wiki/H.264/MPEG-4_AVC" class="mw-redirect" title="H.264/MPEG-4 AVC">AVC</a> patent licensing policy is subject to change in a not-yet-clear manner.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Adoption">Adoption</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Use_of_Ogg_formats_in_HTML5&action=edit&section=5" title="Edit section: Adoption"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="box-Update plainlinks metadata ambox ambox-content ambox-Update" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Ambox_current_red_Americas.svg/42px-Ambox_current_red_Americas.svg.png" decoding="async" width="42" height="34" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Ambox_current_red_Americas.svg/63px-Ambox_current_red_Americas.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/53/Ambox_current_red_Americas.svg/84px-Ambox_current_red_Americas.svg.png 2x" data-file-width="360" data-file-height="290" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section needs to be <b>updated</b>.<span class="hide-when-compact"> Please help update this article to reflect recent events or newly available information.</span> <span class="date-container"><i>(<span class="date">October 2021</span>)</i></span></div></td></tr></tbody></table> <p>As of December 31, 2020, Adobe Flash Player has stopped receiving support from Adobe,<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> with <a href="/wiki/HTML_video" title="HTML video">HTML video</a> being one of the main technologies replacing it.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </p><p>"<a href="/wiki/WebRTC" title="WebRTC">WebRTC</a> Audio Codec and Processing Requirements" Internet standard drafts, published in 2011–2013, require free formats, including <a href="/wiki/Opus_(audio_codec)" class="mw-redirect" title="Opus (audio codec)">Opus</a>, which was developed, among others, by programmers associated with <a href="/wiki/Xiph.Org_Foundation" title="Xiph.Org Foundation">Xiph.Org Foundation</a> (the maintainer of <a href="/wiki/Ogg" title="Ogg">Ogg</a>).<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Use_of_Ogg_formats_in_HTML5&action=edit&section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/HTML_video" title="HTML video">HTML video</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Use_of_Ogg_formats_in_HTML5&action=edit&section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 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title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Ietf+Datatracker&rft.atitle=WebRTC+Audio+Codec+and+Processing+Requirements&rft.date=2013-10-15&rft.aulast=Valin&rft.aufirst=Jean-Marc&rft.au=Bran%2C+Cary&rft_id=http%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-rtcweb-audio-03&rfr_id=info%3Asid%2Fen.wikipedia.org%3AUse+of+Ogg+formats+in+HTML5" class="Z3988"></span></span> </li> <li id="cite_note-25"><span class="mw-cite-backlink"><b><a href="#cite_ref-25">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://wiki.xiph.org/OpusFAQ">"OpusFAQ - XiphWiki"</a>.</cite><span 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