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<!DOCTYPE html> <html class="client-nojs" lang="en" dir="ltr"> <head> <meta charset="UTF-8"/> <title>MultimediaWiki</title> <script>document.documentElement.className="client-js";RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy","wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"bcd492b04d26cddd151a8ffe","wgCSPNonce":false,"wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Main_Page","wgTitle":"Main Page","wgCurRevisionId":8157,"wgRevisionId":8157,"wgArticleId":1,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":[],"wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"Main_Page","wgRelevantArticleId":1,"wgIsProbablyEditable":false,"wgRelevantPageIsProbablyEditable":false,"wgRestrictionEdit":["sysop"],"wgRestrictionMove":["sysop"],"wgIsMainPage":true,"wgVector2022PreviewPages":[]};RLSTATE={"site.styles":"ready", "user.styles":"ready","user":"ready","user.options":"loading","skins.vector.styles.legacy":"ready"};RLPAGEMODULES=["site","mediawiki.page.ready","skins.vector.legacy.js"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.implement("user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"});});});</script> <link rel="stylesheet" href="/load.php?lang=en&modules=skins.vector.styles.legacy&only=styles&skin=vector"/> <script async="" src="/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector"></script> <meta name="generator" content="MediaWiki 1.39.5"/> <meta name="format-detection" content="telephone=no"/> <meta name="viewport" content="width=1000"/> <link rel="icon" href="/favicon.ico"/> <link rel="search" type="application/opensearchdescription+xml" href="/opensearch_desc.php" title="MultimediaWiki (en)"/> <link rel="EditURI" type="application/rsd+xml" href="https://wiki.multimedia.cx/api.php?action=rsd"/> <link rel="alternate" type="application/atom+xml" title="MultimediaWiki Atom feed" href="/index.php?title=Special:RecentChanges&feed=atom"/> </head> <body class="mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject page-Main_Page rootpage-Main_Page skin-vector action-view skin-vector-legacy vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-language-alert-in-sidebar-disabled vector-feature-sticky-header-disabled vector-feature-sticky-header-edit-disabled vector-feature-table-of-contents-disabled vector-feature-visual-enhancement-next-disabled"><div id="mw-page-base" class="noprint"></div> <div id="mw-head-base" class="noprint"></div> <div id="content" class="mw-body" role="main"> <a id="top"></a> <div id="siteNotice"></div> <div class="mw-indicators"> </div> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Main Page</span></h1> <div id="bodyContent" class="vector-body"> <div id="siteSub" class="noprint">From MultimediaWiki</div> <div id="contentSub"></div> <div id="contentSub2"></div> <div id="jump-to-nav"></div> <a class="mw-jump-link" href="#mw-head">Jump to navigation</a> <a class="mw-jump-link" href="#searchInput">Jump to search</a> <div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="en" dir="ltr"><div class="mw-parser-output"><table cellpadding="5" cellspacing="5" width="100%"> <tbody><tr> <td width="50%" style="border:1px solid #cef2e0;background-color:#f5fffa;vertical-align:top"> <h2 style="margin:0;background-color:#cef2e0;font-family:sans-serif;font-size:120%;font-weight:bold;border:1px solid #a3bfb1;text-align:left;color:#000;padding-left:0.4em;padding-top:0.2em;padding-bottom:0.2em;"><span class="mw-headline" id="Video_And_Audio_Codecs">Video And Audio Codecs</span></h2> <div class="floatleft"><a href="/index.php/File:Noia_palette.png" class="image"><img alt="Noia palette.png" src="/images/3/34/Noia_palette.png" decoding="async" width="64" height="64" /></a></div> <p>Here at the MultimediaWiki we catalog as many technical details as we can about video and audio codecs. This goes for current codecs such as <a href="/index.php/VC-1" title="VC-1">VC-1</a> as well as classic codecs like <a href="/index.php/Cinepak" title="Cinepak">Cinepak</a> that still enjoy widespread use. See the following categories for comprehensive lists: <a href="/index.php/Category:Video_Codecs" title="Category:Video Codecs">Video Codecs</a>, <a href="/index.php/Category:Video_FourCCs" title="Category:Video FourCCs">Video FourCCs</a>, <a href="/index.php/Category:Audio_Codecs" title="Category:Audio Codecs">Audio Codecs</a>, and <a href="/index.php/Category:Audio_FourCCs" title="Category:Audio FourCCs">Audio FourCCs</a>. </p> <div class="floatright"><a href="/index.php/File:Noia_midi.png" class="image"><img alt="Noia midi.png" src="/images/8/8b/Noia_midi.png" decoding="async" width="64" height="64" /></a></div> </td> <td width="50%" style="border:1px solid #cedff2;background-color:#f5faff;vertical-align:top"> <h2 style="margin:0;background-color:#cedff2;font-family:sans-serif;font-size:120%;font-weight:bold;border:1px solid #a3bfb1;text-align:left;color:#000;padding-left:0.4em;padding-top:0.2em;padding-bottom:0.2em;"><span id="Container.2C_Text.2C_And_Networking_Formats"></span><span class="mw-headline" id="Container,_Text,_And_Networking_Formats">Container, Text, And Networking Formats</span></h2> <div class="floatleft"><a href="/index.php/File:Noia_text.png" class="image"><img alt="Noia text.png" src="/images/6/61/Noia_text.png" decoding="async" width="64" height="64" /></a></div> <p>There is more to multimedia technology than just the audio and video codecs. <a href="/index.php/Category:Container_Formats" title="Category:Container Formats">Container formats</a> are responsible for organizing the data on disk and <a href="/index.php/Category:Networking_Protocols" title="Category:Networking Protocols">network protocols</a> are in charge of sending the data over the internet. There is a plethora of <a href="/index.php/Category:Subtitle_Formats" title="Category:Subtitle Formats">subtitle formats</a> that display textual information along with video. And do not discount the wide array of <a href="/index.php/Category:Game_Formats" title="Category:Game Formats">game-related formats</a> that helped pioneer the field. </p> <div class="floatright"><a href="/index.php/File:Joystick.png" class="image"><img alt="Joystick.png" src="/images/a/ad/Joystick.png" decoding="async" width="64" height="64" /></a></div> </td></tr> <tr> <td width="50%" style="border:1px solid #ddcef2;background-color:#faf5ff;vertical-align:top"> <h2 style="margin:0;background-color:#ddcef2;font-family:sans-serif;font-size:120%;font-weight:bold;border:1px solid #a3bfb1;text-align:left;color:#000;padding-left:0.4em;padding-top:0.2em;padding-bottom:0.2em;"><span id="Companies.2C_Programs.2C_And_Documentation"></span><span class="mw-headline" id="Companies,_Programs,_And_Documentation">Companies, Programs, And Documentation</span></h2> <div class="floatleft"><a href="/index.php/File:Noia_tux.png" class="image"><img alt="Noia tux.png" src="/images/e/e1/Noia_tux.png" decoding="async" width="64" height="64" /></a></div> <p>The MultimediaWiki is also a place where we catalog information about specific <a href="/index.php/Category:Multimedia-related_Companies" title="Category:Multimedia-related Companies">multimedia-related companies</a> and <a href="/index.php/Category:Multimedia_Programs" title="Category:Multimedia Programs">programs</a>. Further, we seek to document various <a href="/index.php/Category:Multimedia_APIs" title="Category:Multimedia APIs">multimedia APIs</a>. </p> <div class="floatright"><a href="/index.php/File:Noia_question.png" class="image"><img alt="Noia question.png" src="/images/8/8f/Noia_question.png" decoding="async" width="64" height="64" /></a></div> </td> <td width="50%" style="border:1px solid #FFA8D3;background-color:#FFECF5;vertical-align:top"> <h2 style="margin:0;background-color:#FFA8D3;font-family:sans-serif;font-size:120%;font-weight:bold;border:1px solid #a3bfb1;text-align:left;color:#000;padding-left:0.4em;padding-top:0.2em;padding-bottom:0.2em;"><span class="mw-headline" id="Research_And_Reverse_Engineering">Research And Reverse Engineering</span></h2> <div class="floatleft"><a href="/index.php/File:Noia_kdict.png" class="image"><img alt="Noia kdict.png" src="/images/9/9d/Noia_kdict.png" decoding="async" width="64" height="64" /></a></div> <p>One goal of the MultimediaWiki is to open up the field of multimedia technology to a wider audience of multimedia hackers. To that end, the Wiki hosts articles on <a href="/index.php/Category:Compression_Theory" title="Category:Compression Theory">compression theory</a> and facilitates research into <a href="/index.php/Reverse_Engineering_Tools" title="Reverse Engineering Tools">software reverse engineering</a> techniques. It also attempts to catalog which multimedia formats <a href="/index.php/Category:Undiscovered_Codecs" title="Category:Undiscovered Codecs">have yet to be discovered</a> and documented. </p> <div class="floatright"><a href="/index.php/File:Noia_eyes.png" class="image"><img alt="Noia eyes.png" src="/images/f/fb/Noia_eyes.png" decoding="async" width="64" height="64" /></a></div> </td></tr> <tr> <td colspan="2">So far, there are <a href="/index.php/Special:Statistics" title="Special:Statistics">1,132</a> pages in the MultimediaWiki. We would appreciate any knowledge you can contribute, for that is what the Wiki concept is all about. If you need help deciding what to write about, check the <a href="/index.php/Special:WantedPages" title="Special:WantedPages">wanted pages</a> for ideas. <p>Note that, due to spam and vandalism, you must have an account to edit this Wiki. Further -- again due to excessive automated spam and vandalism -- we have had to close general registration. If you would like to contribute, please contact <a href="/index.php/User:Multimedia_Mike" title="User:Multimedia Mike">Multimedia Mike</a> for registration. </p> </td></tr></tbody></table> <p><br /> </p>    </div> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://wiki.multimedia.cx/index.php?title=Main_Page&oldid=8157">https://wiki.multimedia.cx/index.php?title=Main_Page&oldid=8157</a>"</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </div> <div id="mw-navigation"> <h2>Navigation menu</h2> <div id="mw-head"> <nav id="p-personal" class="vector-menu mw-portlet mw-portlet-personal vector-user-menu-legacy" aria-labelledby="p-personal-label" role="navigation" > <h3 id="p-personal-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Personal tools</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"><li id="pt-login" class="mw-list-item"><a href="/index.php?title=Special:UserLogin&returnto=Main+Page" title="You are encouraged to log in; however, it is not mandatory [o]" accesskey="o"><span>Log in</span></a></li></ul> </div> </nav> <div id="left-navigation"> <nav id="p-namespaces" class="vector-menu mw-portlet mw-portlet-namespaces vector-menu-tabs vector-menu-tabs-legacy" aria-labelledby="p-namespaces-label" role="navigation" > <h3 id="p-namespaces-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Namespaces</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"><li id="ca-nstab-main" class="selected mw-list-item"><a href="/index.php/Main_Page" title="View the content page [c]" accesskey="c"><span>Main Page</span></a></li><li id="ca-talk" class="mw-list-item"><a href="/index.php/Talk:Main_Page" rel="discussion" title="Discussion about the content page [t]" accesskey="t"><span>Discussion</span></a></li></ul> </div> </nav> <nav id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet vector-menu-dropdown" aria-labelledby="p-variants-label" role="navigation" > <input type="checkbox" id="p-variants-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-variants" class="vector-menu-checkbox" aria-labelledby="p-variants-label" /> <label id="p-variants-label" aria-label="Change language variant" class="vector-menu-heading " > <span class="vector-menu-heading-label">English</span> </label> <div class="vector-menu-content"> <ul class="vector-menu-content-list"></ul> </div> </nav> </div> <div id="right-navigation"> <nav id="p-views" class="vector-menu mw-portlet mw-portlet-views vector-menu-tabs vector-menu-tabs-legacy" aria-labelledby="p-views-label" role="navigation" > <h3 id="p-views-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Views</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"><li id="ca-view" class="selected mw-list-item"><a href="/index.php/Main_Page"><span>Read</span></a></li><li id="ca-viewsource" class="mw-list-item"><a href="/index.php?title=Main_Page&action=edit" title="This page is protected.
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