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class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Levels"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1.1</span> <span>Levels</span> </div> </a> <ul id="toc-Levels-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Advanced_Simple_Profile_(ASP)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Advanced_Simple_Profile_(ASP)"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Advanced Simple Profile (ASP)</span> </div> </a> <ul id="toc-Advanced_Simple_Profile_(ASP)-sublist" class="vector-toc-list"> <li id="toc-Levels_2" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Levels_2"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2.1</span> <span>Levels</span> </div> </a> <ul id="toc-Levels_2-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Simple_Studio_Profile_(SStP)" 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class="vector-toc-list"> </ul> </li> <li id="toc-Notes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Notes"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Notes</span> </div> </a> <ul id="toc-Notes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc 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Pampanga" lang="pam" hreflang="pam" data-title="MPEG-4 Part 2" data-language-autonym="Kapampangan" data-language-local-name="Pampanga" class="interlanguage-link-target"><span>Kapampangan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/MPEG-4_cz%C4%99%C5%9B%C4%87_2" title="MPEG-4 część 2 – Polish" lang="pl" hreflang="pl" data-title="MPEG-4 część 2" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/MPEG-4_Parte_2" title="MPEG-4 Parte 2 – Portuguese" lang="pt" hreflang="pt" data-title="MPEG-4 Parte 2" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/MPEG-4_Part_2" 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</div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Video compression format</div> <p><b>MPEG-4 Part 2</b>, <b>MPEG-4 Visual</b> (formally <a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>/<a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a> 14496-2<sup id="cite_ref-iso-2004_1-0" class="reference"><a href="#cite_note-iso-2004-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>) is a <a href="/wiki/Video_compression_format" class="mw-redirect" title="Video compression format">video compression format</a> developed by the <a href="/wiki/Moving_Picture_Experts_Group" title="Moving Picture Experts Group">Moving Picture Experts Group</a> (MPEG). It belongs to the <a href="/wiki/MPEG-4" title="MPEG-4">MPEG-4</a> ISO/IEC standards. It uses block-wise <a href="/wiki/Motion_compensation" title="Motion compensation">motion compensation</a> and a <a href="/wiki/Discrete_cosine_transform" title="Discrete cosine transform">discrete cosine transform</a> (DCT), similar to previous standards such as <a href="/wiki/MPEG-1#Part_2:_Video" title="MPEG-1">MPEG-1 Part 2</a> and <a href="/wiki/H.262/MPEG-2_Part_2" title="H.262/MPEG-2 Part 2">H.262/MPEG-2 Part 2</a>. </p><p>Several popular <a href="/wiki/Codec" title="Codec">codecs</a> including <a href="/wiki/DivX" title="DivX">DivX</a>, <a href="/wiki/Xvid" title="Xvid">Xvid</a>, and <a href="/wiki/Nero_Digital" title="Nero Digital">Nero Digital</a> implement this standard. <a href="/wiki/H.264/MPEG-4_AVC" class="mw-redirect" title="H.264/MPEG-4 AVC">MPEG-4 Part 10</a> defines a different format from MPEG-4 Part 2. MPEG-4 Part 10 is commonly referred to as H.264 or AVC, and was jointly developed by <a href="/wiki/ITU-T" title="ITU-T">ITU-T</a> and MPEG. </p><p>MPEG-4 Part 2 is <a href="/wiki/H.263" title="H.263">H.263</a> compatible in the sense that a basic H.263 bitstream is correctly decoded by an MPEG-4 Video decoder. (MPEG-4 Video decoder is natively capable of decoding a basic form of H.263.)<sup id="cite_ref-end_of_the_ride_2-0" class="reference"><a href="#cite_note-end_of_the_ride-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-inside_MPEG-4_part_B_3-0" class="reference"><a href="#cite_note-inside_MPEG-4_part_B-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-mpeg-4-video-faq_4-0" class="reference"><a href="#cite_note-mpeg-4-video-faq-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> In MPEG-4 Visual, there are two types of video object layers: the video object layer that provides full MPEG-4 functionality, and a reduced functionality video object layer, the video object layer with short headers (which provides bitstream compatibility with base-line H.263).<sup id="cite_ref-natural-vide-paper_5-0" class="reference"><a href="#cite_note-natural-vide-paper-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> MPEG-4 Part 2 is partially based on ITU-T H.263.<sup id="cite_ref-inside_MPEG-1_part_A_6-0" class="reference"><a href="#cite_note-inside_MPEG-1_part_A-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The first MPEG-4 Video Verification Model (simulation and test model) used ITU-T H.263 coding tools together with shape coding.<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> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The MPEG-4 Visual format was developed by the <a href="/wiki/Moving_Picture_Experts_Group" title="Moving Picture Experts Group">Moving Picture Experts Group</a> (MPEG) committee. The specification was authored by <a href="/wiki/Iran" title="Iran">Iranian</a>-<a href="/wiki/Switzerland" title="Switzerland">Swiss</a> engineer Touradj Ebrahimi (later the president of <a href="/wiki/Joint_Photographic_Experts_Group" title="Joint Photographic Experts Group">JPEG</a>) and <a href="/wiki/Netherlands" title="Netherlands">Dutch</a> engineer Caspar Horne.<sup id="cite_ref-natural-vide-paper_5-1" class="reference"><a href="#cite_note-natural-vide-paper-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The standard was developed using patents from over a dozen organizations, listed by <a href="/wiki/MPEG_LA" title="MPEG LA">MPEG LA</a> in a <a href="/wiki/Patent_pool" title="Patent pool">patent pool</a>. The majority of patents used for the MPEG-4 Visual format were from three <a href="/wiki/Japan" title="Japan">Japanese</a> companies: <a href="/wiki/Mitsubishi_Electric" title="Mitsubishi Electric">Mitsubishi Electric</a> (255 patents), <a href="/wiki/Hitachi" title="Hitachi">Hitachi</a> (206 patents), and <a href="/wiki/Panasonic" title="Panasonic">Panasonic</a> (200 patents).<sup id="cite_ref-mpegla_8-0" class="reference"><a href="#cite_note-mpegla-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> See <i><a href="#Patent_holders">Patent holders</a></i> below for a full list of patent holders. </p> <div class="mw-heading mw-heading2"><h2 id="Editions">Editions</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=2" title="Edit section: Editions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable sortable"> <caption>MPEG-4 Visual editions<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </caption> <tbody><tr> <th>Edition </th> <th>Release date </th> <th>Latest amendment </th> <th>Standard </th> <th>Description </th></tr> <tr> <td>First edition </td> <td>1999 </td> <td>2000 </td> <td>ISO/IEC 14496-2:1999<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> </td> <td> </td></tr> <tr> <td>Second edition </td> <td>2001 </td> <td>2003 </td> <td>ISO/IEC 14496-2:2001<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> </td> <td> </td></tr> <tr> <td>Third edition </td> <td>2004 </td> <td>2009<sup id="cite_ref-iso-2004_1-1" class="reference"><a href="#cite_note-iso-2004-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td> <td>ISO/IEC 14496-2:2004<sup id="cite_ref-iso-2004_1-2" class="reference"><a href="#cite_note-iso-2004-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td> <td> </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Profiles">Profiles</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=3" title="Edit section: Profiles"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output 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.mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/MPEG-4_Part_2" title="Special:EditPage/MPEG-4 Part 2">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a> in this section. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22MPEG-4+Part+2%22">"MPEG-4 Part 2"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22MPEG-4+Part+2%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22MPEG-4+Part+2%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22MPEG-4+Part+2%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22MPEG-4+Part+2%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22MPEG-4+Part+2%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">May 2023</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>To address various applications ranging from low-quality, low-resolution surveillance cameras to high definition TV broadcasting and DVDs, many video standards group features into profiles and levels. MPEG-4 Part 2 contains approximately 21 profiles. </p><p>The most commonly deployed profiles are the <a href="#Advanced_Simple_Profile_(ASP)">Advanced Simple Profile</a> (ASP or AS Profile) and the <a href="#Simple_Profile_(SP)">Simple Profile</a> (SP), which is a subset of the ASP. </p><p>Other profiles include the Advanced Coding Efficiency Profile (ACEP or ACE Profile), the Advanced Real Time Simple Profile (ARTSP or ARTS Profile), the Core Profile (CP), the Main Profile (MP), and the <a href="#Simple_Studio_Profile_(SStP)">Simple Studio Profile</a> (SStP or SSt Profile). </p><p>Most of the video compression schemes standardize the <a href="/wiki/Bitstream" title="Bitstream">bitstream</a> (and thus the decoder) leaving the <a href="/wiki/Data_compression" title="Data compression">encoder</a> design to the individual implementations. Therefore, implementations for a particular profile (such as DivX or Nero Digital which are implementations of Advanced Simple Profile and Xvid that implements both profiles) are all technically identical on the decoder side. A point of comparison would be that an MP3 file can be played in any MP3 player, whether it was created through iTunes, Windows Media Player, <a href="/wiki/LAME" title="LAME">LAME</a>, or the common Fraunhofer encoder. </p> <div class="mw-heading mw-heading3"><h3 id="Simple_Profile_(SP)"><span id="Simple_Profile_.28SP.29"></span>Simple Profile (SP)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=4" title="Edit section: Simple Profile (SP)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <b>Simple Profile</b> is mostly aimed for use in situations where low bit rate and low resolution are mandated by other conditions of the applications, like network bandwidth, device size etc. Examples are <a href="/wiki/Mobile_phone" title="Mobile phone">mobile phones</a>, some low end <a href="/wiki/Video_conferencing" class="mw-redirect" title="Video conferencing">video conferencing</a> systems, <a href="/wiki/Electronic_surveillance#Surveillance_cameras" class="mw-redirect" title="Electronic surveillance">electronic surveillance</a> systems etc. </p> <div class="mw-heading mw-heading4"><h4 id="Levels">Levels</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=5" title="Edit section: Levels"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable"> <tbody><tr> <th scope="col" rowspan="2">Level </th> <th scope="col" rowspan="2">Max. buffer </th> <th scope="col" rowspan="2">Max. bitrate </th> <th scope="col" rowspan="2">Max. delay at max. bitrate </th> <th scope="col" rowspan="2">Max. VP size </th> <th scope="col" rowspan="2">Max. VOP size </th> <th scope="col" rowspan="2">Max. decoder rate </th> <th scope="col" colspan="5">Max. framesize </th></tr> <tr> <th scope="col">@ 30 Hz </th> <th scope="col">@ 25 Hz </th> <th scope="col">@ 24 Hz </th> <th scope="col">@ 15 Hz </th> <th scope="col">@ 12.5 Hz </th></tr> <tr> <th>0 </th> <td style="text-align:right">160</td> <td style="text-align:right">64</td> <td rowspan="3" style="text-align:right">2.50 </td> <td rowspan="3" style="text-align:right">2,048</td> <td rowspan="3" style="text-align:right">99</td> <td rowspan="3" style="text-align:right">1,485 </td> <td rowspan="2" colspan="3" style="text-align:center;background:#CCC">—</td> <td rowspan="3" colspan="2" style="text-align:center"><abbr title="Quarter Common Intermediate Format">QCIF</abbr> (176×144) </td></tr> <tr> <th>0b </th> <td style="text-align:right">320</td> <td style="text-align:right">128 </td></tr> <tr> <th>1 </th> <td style="text-align:right">160</td> <td style="text-align:right">64 </td> <td style="text-align:center">128×96</td> <td style="text-align:center">144×96</td> <td style="text-align:center">160×96 </td></tr> <tr> <th>2 </th> <td rowspan="2" style="text-align:right">640</td> <td style="text-align:right">128</td> <td style="text-align:right">5.00 </td> <td style="text-align:right">4,096</td> <td rowspan="2" style="text-align:right">396</td> <td style="text-align:right">5,940 </td> <td style="text-align:center">256×192</td> <td style="text-align:center">304×192, 288×208</td> <td style="text-align:center">304×208</td> <td colspan="2" style="text-align:center"><a href="/wiki/Common_Intermediate_Format" title="Common Intermediate Format"><abbr title="Common Intermediate Format">CIF</abbr></a> (352×288) </td></tr> <tr> <th>3 </th> <td style="text-align:right">384</td> <td style="text-align:right">1.66 </td> <td style="text-align:right">8,192</td> <td style="text-align:right">11,880 </td> <td colspan="5" style="text-align:center">CIF (352×288) </td></tr> <tr> <th>4a </th> <td style="text-align:right">1,280</td> <td style="text-align:right">4,000</td> <td style="text-align:right">0.32 </td> <td rowspan="3" style="text-align:right">16,384 </td> <td style="text-align:right">1,200</td> <td style="text-align:right">36,000 </td> <td colspan="5" style="text-align:center">VGA (640×480) </td></tr> <tr> <th>5 </th> <td style="text-align:right">1,792 </td> <td style="text-align:right">8,000</td> <td style="text-align:right">0.22 </td> <td style="text-align:right">1,620</td> <td style="text-align:right">40,500 </td> <td>D1 NTSC (720×480)</td> <td colspan="4" style="text-align:center">D1 PAL (720×576) </td></tr> <tr> <th>6 </th> <td style="text-align:right">3,968 </td> <td style="text-align:right">12,000</td> <td style="text-align:right">0.33 </td> <td style="text-align:right">3,600</td> <td style="text-align:right">108,000 </td> <td colspan="5" style="text-align:center">720p (1280x720) </td></tr> <tr style="background:#EEEEFF;font-size:smaller"> <th scope="row" style="text-align:right">Units </th> <td scope="col" style="text-align:right">kbits </td> <td scope="col" style="text-align:right">kbits/s </td> <td scope="col" style="text-align:right">seconds </td> <td scope="col" style="text-align:right">bits </td> <td scope="col" style="text-align:right">macroblocks </td> <td scope="col" style="text-align:right">macroblocks/s </td> <td scope="col" colspan="5" style="text-align:center">pixels </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Advanced_Simple_Profile_(ASP)"><span id="Advanced_Simple_Profile_.28ASP.29"></span>Advanced Simple Profile (ASP)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=6" title="Edit section: Advanced Simple Profile (ASP)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <b>Advanced Simple Profile</b> was not included in the original standard. Its notable technical features relative to the Simple Profile, which is roughly similar to <a href="/wiki/H.263" title="H.263">H.263</a>, include: </p> <ul><li>Support for "MPEG"-style quantization</li> <li>Support for <a href="/wiki/Interlaced_video" title="Interlaced video">interlaced</a> video</li> <li>Support for <a href="/wiki/B-frame" class="mw-redirect" title="B-frame">B pictures</a> (a.k.a. <i><a href="/wiki/B-frame" class="mw-redirect" title="B-frame">B-frames</a></i>)</li> <li>Quarter Pixel <a href="/wiki/Motion_compensation" title="Motion compensation">motion compensation</a> (<a href="/wiki/Qpel" class="mw-redirect" title="Qpel">Qpel</a>)</li> <li><a href="/wiki/Global_motion_compensation" title="Global motion compensation">Global motion compensation</a> (GMC)</li></ul> <p>The MPEG quantization and interlace support are designed in basically similar ways to the way it is found in <a href="/wiki/MPEG-2" title="MPEG-2">MPEG-2</a> Part 2. The B picture support is designed in a basically similar way to the way it is found in MPEG-2 Part 2 and <a href="/wiki/H.263" title="H.263">H.263v2</a>. </p><p>The quarter-pixel motion compensation feature of ASP was innovative, and was later also included (in somewhat different forms) in later designs such as <a href="/wiki/MPEG-4_Part_10" class="mw-redirect" title="MPEG-4 Part 10">MPEG-4 Part 10</a>, <a href="/wiki/High_Efficiency_Video_Coding" title="High Efficiency Video Coding">HEVC</a>, <a href="/wiki/VC-1" title="VC-1">VC-1</a> and <a href="/wiki/Versatile_Video_Coding" title="Versatile Video Coding">VVC</a>. Some implementations of MPEG-4 Part 2 omit support for this feature, because it has a significantly harmful effect on the speed of software decoders and it is not always beneficial for quality. </p><p>The global motion compensation feature is not actually supported in most implementations although the standard officially requires decoders to support it. Most encoders do not support it either, and some experts say that it does not ordinarily provide any benefit in compression. When used, ASP's global motion compensation has a large unfavorable impact on speed and adds considerable complexity to the implementation. </p> <div class="mw-heading mw-heading4"><h4 id="Levels_2">Levels</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=7" title="Edit section: Levels"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable"> <tbody><tr> <th scope="col" rowspan="2">Level </th> <th scope="col" rowspan="2">Max. buffer </th> <th scope="col" rowspan="2">Max. bitrate </th> <th scope="col" rowspan="2">Max. delay at max. bitrate </th> <th scope="col" rowspan="2">Max. VP size </th> <th scope="col" rowspan="2">Max. VOP size </th> <th scope="col" rowspan="2">Max. decoder rate </th> <th scope="col" colspan="5">Max. framesize </th></tr> <tr> <th scope="col">@ 30 Hz </th> <th scope="col">@ 25 Hz </th> <th scope="col">@ 24 Hz </th> <th scope="col">@ 15 Hz </th> <th scope="col">@ 12.5 Hz </th></tr> <tr> <th>0 </th> <td rowspan="2" style="text-align:right">160</td> <td rowspan="2" style="text-align:right">128</td> <td rowspan="2" style="text-align:right">1.25 </td> <td rowspan="2" style="text-align:right">2,048</td> <td rowspan="2" style="text-align:right">99</td> <td rowspan="2" style="text-align:right">2,970 </td> <td rowspan="2" colspan="5" style="text-align:center">QCIF (176×144) </td></tr> <tr> <th>1 </th></tr> <tr> <th>2 </th> <td rowspan="2" style="text-align:right">640</td> <td style="text-align:right">384</td> <td style="text-align:right">1.66 </td> <td rowspan="3" style="text-align:right">4,096</td> <td rowspan="3" style="text-align:right">396</td> <td style="text-align:right">5,940 </td> <td style="text-align:center">256×192</td> <td style="text-align:center">304×192, 288×208</td> <td style="text-align:center">304×208</td> <td colspan="2" style="text-align:center">CIF (352×288) </td></tr> <tr> <th>3 </th> <td style="text-align:right">768</td> <td style="text-align:right">0.86 </td> <td rowspan="2" style="text-align:right">11,880 </td> <td rowspan="2" colspan="5" style="text-align:center">CIF (352×288) </td></tr> <tr> <th>3b </th> <td style="text-align:right">1,040</td> <td style="text-align:right">1,500</td> <td style="text-align:right">0.69 </td></tr> <tr> <th>4 </th> <td style="text-align:right">1,280</td> <td style="text-align:right">3,000</td> <td style="text-align:right">0.43 </td> <td style="text-align:right">8,192</td> <td style="text-align:right">792</td> <td style="text-align:right">23,760 </td> <td colspan="5" style="text-align:center">352×576, 704×288 </td></tr> <tr> <th>5 </th> <td style="text-align:right">1,792</td> <td style="text-align:right">8,000</td> <td style="text-align:right">0.22 </td> <td style="text-align:right">16,384</td> <td style="text-align:right">1,620</td> <td style="text-align:right">48,600 </td> <td colspan="5" style="text-align:center">720×576 </td></tr> <tr style="background:#EEEEFF;font-size:smaller"> <th scope="row" style="text-align:right">Units </th> <td scope="col" style="text-align:right">kbits </td> <td scope="col" style="text-align:right">kbits/s </td> <td scope="col" style="text-align:right">seconds </td> <td scope="col" style="text-align:right">bits </td> <td scope="col" style="text-align:right">macroblocks </td> <td scope="col" style="text-align:right">macroblocks/s </td> <td scope="col" colspan="5" style="text-align:center">pixels </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Simple_Studio_Profile_(SStP)"><span id="Simple_Studio_Profile_.28SStP.29"></span>Simple Studio Profile (SStP)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=8" title="Edit section: Simple Studio Profile (SStP)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <b>Simple Studio Profile</b> has six levels, ranging from <a href="/wiki/Standard-definition_television" title="Standard-definition television">SDTV</a> to <a href="/wiki/4K_resolution" title="4K resolution">4K resolution</a>.<sup id="cite_ref-MPEG4SonyNAB2010_12-0" class="reference"><a href="#cite_note-MPEG4SonyNAB2010-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> SStP allows for up to 12-bit <a href="/wiki/Color_depth" title="Color depth">bit depth</a> and up to 4:4:4 <a href="/wiki/Chroma_subsampling" title="Chroma subsampling">chroma subsampling</a>,<sup id="cite_ref-MPEG4SonyNAB2010_12-1" class="reference"><a href="#cite_note-MPEG4SonyNAB2010-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> using intra-frame coding only.<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> SStP is used by <a href="/wiki/HDCAM#HDCAM_SR" title="HDCAM">HDCAM SR</a>.<sup id="cite_ref-MPEG4SonyNAB2010_12-2" class="reference"><a href="#cite_note-MPEG4SonyNAB2010-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Levels_3">Levels</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=9" title="Edit section: Levels"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable" style="text-align:right;"> <caption>Levels with maximum property values<sup id="cite_ref-MPEG4SonyNAB2010_12-3" class="reference"><a href="#cite_note-MPEG4SonyNAB2010-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </caption> <tbody><tr> <th>Level </th> <th>Max. bit depth and<br />chroma subsampling </th> <th>Max. resolution<br />and frame rate </th> <th>Max. data rate<br />(Mbit/s) </th></tr> <tr> <th>1 </th> <td>10-bit 4:2:2 </td> <td>SDTV </td> <td>180 </td></tr> <tr> <th>2 </th> <td>10-bit 4:2:2 </td> <td>1920×1080 30p/30i </td> <td>600 </td></tr> <tr> <th>3 </th> <td>12-bit 4:4:4 </td> <td>1920×1080 30p/30i </td> <td>900 </td></tr> <tr> <th>4 </th> <td>12-bit 4:4:4 </td> <td>2K×2K 30p </td> <td>1,350 </td></tr> <tr> <th>5 </th> <td>12-bit 4:4:4 </td> <td>4K×2K 30p </td> <td>1,800 </td></tr> <tr> <th>6 </th> <td>12-bit 4:4:4 </td> <td>4K×2K 60p </td> <td>3,600 </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Patent_holders">Patent holders</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=10" title="Edit section: Patent holders"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>MPEG-4 Part 2 <a href="/wiki/Patent" title="Patent">patents</a> <a href="/wiki/Term_of_patent" title="Term of patent">expired</a> worldwide, with the exception of only Brazil. The last US patent expired on November 14, 2023.<sup id="cite_ref-PatentList_14-0" class="reference"><a href="#cite_note-PatentList-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> The following organizations held patents for MPEG-4 Visual technology, as listed in the <a href="/wiki/Patent_pool" title="Patent pool">patent pool</a> administered by <a href="/wiki/MPEG_LA" title="MPEG LA">MPEG LA</a>. </p> <table class="wikitable sortable"> <tbody><tr> <th>Organization<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </th> <th>Patents<sup id="cite_ref-mpegla_8-1" class="reference"><a href="#cite_note-mpegla-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </th></tr> <tr> <td><a href="/wiki/Mitsubishi_Electric" title="Mitsubishi Electric">Mitsubishi Electric</a> </td> <td>255 </td></tr> <tr> <td><a href="/wiki/Hitachi" title="Hitachi">Hitachi</a> </td> <td>206 </td></tr> <tr> <td><a href="/wiki/Panasonic" title="Panasonic">Panasonic</a> </td> <td>200 </td></tr> <tr> <td>Sun Patent Trust </td> <td>125 </td></tr> <tr> <td><a href="/wiki/Toshiba" title="Toshiba">Toshiba</a> </td> <td>96 </td></tr> <tr> <td><a href="/wiki/Samsung_Electronics" title="Samsung Electronics">Samsung Electronics</a> </td> <td>92 </td></tr> <tr> <td><a href="/wiki/Sony" title="Sony">Sony</a> </td> <td>84 </td></tr> <tr> <td><a href="/wiki/Philips" title="Philips">Philips</a> </td> <td>73 </td></tr> <tr> <td><a href="/wiki/Sharp_Corporation" title="Sharp Corporation">Sharp Corporation</a> </td> <td>44 </td></tr> <tr> <td><a href="/wiki/Pantech" title="Pantech">Pantech</a> </td> <td>36 </td></tr> <tr> <td><a href="/wiki/Robert_Bosch_GmbH" class="mw-redirect" title="Robert Bosch GmbH">Robert Bosch GmbH</a> </td> <td>27 </td></tr> <tr> <td><a href="/wiki/Nippon_Telegraph_and_Telephone" title="Nippon Telegraph and Telephone">Nippon Telegraph and Telephone</a> </td> <td>24 </td></tr> <tr> <td>GE Technology Development </td> <td>23 </td></tr> <tr> <td>CIF Licensing </td> <td>20 </td></tr> <tr> <td><a href="/wiki/Dolby" title="Dolby">Dolby</a> </td> <td>19 </td></tr> <tr> <td><a href="/wiki/Telenor" title="Telenor">Telenor</a> </td> <td>19 </td></tr> <tr> <td><a href="/wiki/Siemens_AG" class="mw-redirect" title="Siemens AG">Siemens AG</a> </td> <td>15 </td></tr> <tr> <td><a href="/wiki/JVC_Kenwood" class="mw-redirect" title="JVC Kenwood">JVC Kenwood</a> </td> <td>14 </td></tr> <tr> <td><a href="/wiki/Orange_S.A." title="Orange S.A.">Orange S.A.</a> </td> <td>14 </td></tr> <tr> <td><a href="/wiki/LG_Electronics" title="LG Electronics">LG Electronics</a> </td> <td>13 </td></tr> <tr> <td><a href="/wiki/Fujitsu" title="Fujitsu">Fujitsu</a> </td> <td>11 </td></tr> <tr> <td><a href="/wiki/ZTE" title="ZTE">ZTE</a> </td> <td>10 </td></tr> <tr> <td><a href="/wiki/Google" title="Google">Google</a> </td> <td>9 </td></tr> <tr> <td><a href="/wiki/BT_Group" title="BT Group">BT Group</a> </td> <td>3 </td></tr> <tr> <td>Calmare Therapeutics </td> <td>2 </td></tr> <tr> <td><a href="/wiki/Cable_Television_Laboratories,_Inc." class="mw-redirect" title="Cable Television Laboratories, Inc.">Cable Television Laboratories, Inc.</a> </td> <td>1 </td></tr> <tr> <td><a href="/wiki/Canon_Inc." title="Canon Inc.">Canon Inc.</a> </td> <td>1 </td></tr> <tr> <td><a href="/wiki/KDDI" title="KDDI">KDDI</a> </td> <td>1 </td></tr> <tr> <td><a href="/wiki/Microsoft" title="Microsoft">Microsoft</a> </td> <td>1 </td></tr> <tr> <td><a href="/wiki/Oki_Electric_Industry" title="Oki Electric Industry">Oki Electric Industry</a> </td> <td>1 </td></tr> <tr> <td><a href="/wiki/Sanyo" title="Sanyo">Sanyo</a> </td> <td>1 </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Criticisms">Criticisms</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=11" title="Edit section: Criticisms"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>MPEG-4 Part 2 has drawn some industry criticism. <a href="/wiki/FFmpeg" title="FFmpeg">FFmpeg</a>'s maintainer Michael Niedermayer has criticised MPEG-4 for lacking an in-loop <a href="/wiki/Deblocking_filter_(video)" class="mw-redirect" title="Deblocking filter (video)">deblocking filter</a>, GMC being too computationally intensive, and <a href="/wiki/Motion_compensation#Overlapped_block_motion_compensation" title="Motion compensation">OBMC</a> being defined but not allowed in any profiles among other things.<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> <a href="/wiki/Microsoft" title="Microsoft">Microsoft</a>'s Ben Waggoner states "Microsoft (well before my time) went down the codec standard route before with MPEG-4 part 2, which turns out to be a profound disappointment across the industry - it didn't offer that much of a compression advantage over MPEG-2, and the protracted license agreement discussions scared off a lot of adoption. I was involved in many digital media projects that wouldn't even touch MPEG-4 in the late 1990s to early 2000s because there was going to be a 'content fee' that hadn't been fully defined yet."<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> <div class="mw-heading mw-heading2"><h2 id="Popular_software_implementations">Popular software implementations</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=12" title="Edit section: Popular software implementations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/3ivx" title="3ivx">3ivx</a></li> <li><a href="/wiki/DivX" title="DivX">DivX</a></li> <li><a href="/wiki/HDX4" title="HDX4">HDX4</a></li> <li><a href="/wiki/Libavcodec" title="Libavcodec">libavcodec</a></li> <li><a href="/wiki/Nero_Digital" title="Nero Digital">Nero Digital</a></li> <li><a href="/wiki/QuickTime" title="QuickTime">QuickTime</a></li> <li><a href="/wiki/Xvid" title="Xvid">Xvid</a></li></ul> <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=MPEG-4_Part_2&action=edit&section=13" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/High_Efficiency_Video_Coding" title="High Efficiency Video Coding">High Efficiency Video Coding</a></li> <li><a href="/wiki/Advanced_Video_Coding" title="Advanced Video Coding">Advanced Video Coding</a></li> <li><a href="/wiki/Quantization_(image_processing)" title="Quantization (image processing)">Quantization (image processing)</a></li> <li><a href="/wiki/FourCC" title="FourCC">FourCC</a></li> <li><a href="/wiki/MP3" title="MP3">MP3</a></li> <li><a href="/wiki/ISO/IEC_JTC_1/SC_29" title="ISO/IEC JTC 1/SC 29">ISO/IEC JTC 1/SC 29</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=MPEG-4_Part_2&action=edit&section=14" title="Edit section: Notes"><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 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href="/wiki/Template:Compression_formats" title="Template:Compression formats"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Compression_formats" title="Template talk:Compression formats"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Compression_formats" title="Special:EditPage/Template:Compression formats"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Multimedia_compression_and_container_formats" style="font-size:114%;margin:0 4em"><a href="/wiki/Multimedia" title="Multimedia">Multimedia</a> <a href="/wiki/Data_compression" title="Data compression">compression</a> and <a href="/wiki/Container_format_(computing)" class="mw-redirect" title="Container format (computing)">container</a> formats</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Video_coding_format" title="Video coding format">Video<br />compression</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a>, <br /><a href="/wiki/Moving_Picture_Experts_Group" title="Moving Picture Experts Group">MPEG</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DV_(video_format)" title="DV (video format)">DV</a></li> <li><a href="/wiki/Motion_JPEG" title="Motion JPEG">MJPEG</a></li> <li><a href="/wiki/Motion_JPEG_2000" title="Motion JPEG 2000">Motion JPEG 2000</a></li> <li><a href="/wiki/MPEG-1" title="MPEG-1">MPEG-1</a></li> <li><a href="/wiki/MPEG-2" title="MPEG-2">MPEG-2</a> <ul><li><a href="/wiki/H.262/MPEG-2_Part_2" title="H.262/MPEG-2 Part 2">Part 2</a></li></ul></li> <li><a href="/wiki/MPEG-4" title="MPEG-4">MPEG-4</a> <ul><li><a class="mw-selflink selflink">Part 2 / ASP</a></li> <li><a href="/wiki/H.264/MPEG-4_AVC" class="mw-redirect" title="H.264/MPEG-4 AVC">Part 10 / AVC</a></li> <li><a href="/wiki/MPEG-4_IVC" class="mw-redirect" title="MPEG-4 IVC">Part 33 / IVC</a></li></ul></li> <li><a href="/wiki/MPEG-H" title="MPEG-H">MPEG-H</a> <ul><li><a href="/wiki/High_Efficiency_Video_Coding" title="High Efficiency Video Coding">Part 2 / HEVC</a></li></ul></li> <li><a href="/w/index.php?title=MPEG-I&action=edit&redlink=1" class="new" title="MPEG-I (page does not exist)">MPEG-I</a> <ul><li><a href="/wiki/Versatile_Video_Coding" title="Versatile Video Coding">Part 3 / VVC</a></li></ul></li> <li><a href="/wiki/MPEG-5" class="mw-redirect" title="MPEG-5">MPEG-5</a> <ul><li><a href="/wiki/Essential_Video_Coding" title="Essential Video Coding">Part 1 / EVC</a></li> <li><a href="/wiki/LCEVC" title="LCEVC">Part 2 / LCEVC</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/ITU-T" title="ITU-T">ITU-T</a>, <a href="/wiki/Video_Coding_Experts_Group" title="Video Coding Experts Group">VCEG</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/H.120" title="H.120">H.120</a></li> <li><a href="/wiki/H.261" title="H.261">H.261</a></li> <li><a href="/wiki/H.262/MPEG-2_Part_2" title="H.262/MPEG-2 Part 2">H.262</a></li> <li><a href="/wiki/H.263" title="H.263">H.263</a></li> <li><a href="/wiki/Advanced_Video_Coding" title="Advanced Video Coding">H.264 / AVC</a></li> <li><a href="/wiki/High_Efficiency_Video_Coding" title="High Efficiency Video Coding">H.265 / HEVC</a></li> <li><a href="/wiki/Versatile_Video_Coding" title="Versatile Video Coding">H.266 / VVC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Society_of_Motion_Picture_and_Television_Engineers" title="Society of Motion Picture and Television Engineers">SMPTE</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/VC-1" title="VC-1">VC-1</a></li> <li><a href="/wiki/Dirac_(video_compression_format)" title="Dirac (video compression format)">VC-2</a></li> <li><a href="/wiki/Avid_DNxHD" title="Avid DNxHD">VC-3</a></li> <li><a href="/wiki/CineForm" title="CineForm">VC-5</a></li> <li><a href="/wiki/VC-6" title="VC-6">VC-6</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/On2_Technologies" title="On2 Technologies">TrueMotion</a> and AOMedia</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/On2_Technologies#TrueMotion_S" title="On2 Technologies">TrueMotion S</a></li> <li><a href="/wiki/VP3" title="VP3">VP3</a></li> <li><a href="/wiki/VP6" title="VP6">VP6</a></li> <li><a href="/wiki/VP7" class="mw-redirect" title="VP7">VP7</a></li> <li><a href="/wiki/VP8" title="VP8">VP8</a></li> <li><a href="/wiki/VP9" title="VP9">VP9</a></li> <li><a href="/wiki/AV1" title="AV1">AV1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Chinese Standard</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Audio_Video_Standard#First_generation" title="Audio Video Standard">AVS1 P2/AVS+</a>(GB/T 20090.2/16)</li> <li><a href="/wiki/Audio_Video_Standard#Second_generation" title="Audio Video Standard">AVS2 P2</a>(GB/T 33475.2,GY/T 299.1) <ul><li>HDR Vivid(GY/T 358)</li></ul></li> <li>AVS3 P2(GY/T 368)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Apple_Video" title="Apple Video">Apple Video</a></li> <li><a href="/wiki/Audio_Video_Standard" title="Audio Video Standard">AVS</a></li> <li><a href="/wiki/Bink_Video" title="Bink Video">Bink</a></li> <li><a href="/wiki/Cinepak" title="Cinepak">Cinepak</a></li> <li><a href="/wiki/Daala" title="Daala">Daala</a></li> <li><a href="/wiki/Digital_Video_Interactive" title="Digital Video Interactive">DVI</a></li> <li><a href="/wiki/FFV1" title="FFV1">FFV1</a></li> <li><a href="/wiki/Huffyuv" title="Huffyuv">Huffyuv</a></li> <li><a href="/wiki/Indeo" title="Indeo">Indeo</a></li> <li><a href="/wiki/Lagarith" title="Lagarith">Lagarith</a></li> <li><a href="/wiki/Microsoft_Video_1" title="Microsoft Video 1">Microsoft Video 1</a></li> <li><a href="/wiki/MSU_Lossless_Video_Codec" title="MSU Lossless Video Codec">MSU Lossless</a></li> <li><a href="/wiki/OMS_Video" title="OMS Video">OMS Video</a></li> <li><a href="/wiki/Pixlet" title="Pixlet">Pixlet</a></li> <li><a href="/wiki/Apple_ProRes" title="Apple ProRes">ProRes</a> <ul><li><a href="/wiki/ProRes_422" class="mw-redirect" title="ProRes 422">422</a></li> <li><a href="/wiki/ProRes_4444" class="mw-redirect" title="ProRes 4444">4444</a></li></ul></li> <li>QuickTime <ul><li><a href="/wiki/QuickTime_Animation" title="QuickTime Animation">Animation</a></li> <li><a href="/wiki/QuickTime_Graphics" title="QuickTime Graphics">Graphics</a></li></ul></li> <li><a href="/wiki/RealVideo" title="RealVideo">RealVideo</a></li> <li><a href="/wiki/RTVideo" title="RTVideo">RTVideo</a></li> <li><a href="/wiki/SheerVideo" title="SheerVideo">SheerVideo</a></li> <li><a href="/wiki/Smacker_video" title="Smacker video">Smacker</a></li> <li><a href="/wiki/Sorenson_Media" title="Sorenson Media">Sorenson Video/Spark</a></li> <li><a href="/wiki/Theora" title="Theora">Theora</a></li> <li><a href="/wiki/Thor_(video_codec)" title="Thor (video codec)">Thor</a></li> <li><a href="/wiki/Ut_Video_Codec_Suite" title="Ut Video Codec Suite">Ut</a></li> <li><a href="/wiki/Windows_Media_Video" title="Windows Media Video">WMV</a></li> <li><a href="/wiki/RatDVD" title="RatDVD">XEB</a></li> <li><a href="/wiki/YULS" title="YULS">YULS</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Audio_coding_format" title="Audio coding format">Audio<br />compression</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a>,<br /> <a href="/wiki/Moving_Picture_Experts_Group" title="Moving Picture Experts Group">MPEG</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MPEG-1_Audio_Layer_II" title="MPEG-1 Audio Layer II">MPEG-1 Layer II</a> <ul><li><a href="/wiki/MPEG_Multichannel" title="MPEG Multichannel">Multichannel</a></li></ul></li> <li><a href="/wiki/MPEG-1_Audio_Layer_I" title="MPEG-1 Audio Layer I">MPEG-1 Layer I</a></li> <li><a href="/wiki/MP3" title="MP3">MPEG-1 Layer III (MP3)</a></li> <li><a href="/wiki/Advanced_Audio_Coding" title="Advanced Audio Coding">AAC</a> <ul><li><a href="/wiki/High-Efficiency_Advanced_Audio_Coding" title="High-Efficiency Advanced Audio Coding">HE-AAC</a></li> <li><a href="/wiki/AAC-LD" title="AAC-LD">AAC-LD</a></li></ul></li> <li><a href="/wiki/MPEG_Surround" title="MPEG Surround">MPEG Surround</a></li> <li><a href="/wiki/Audio_Lossless_Coding" title="Audio Lossless Coding">MPEG-4 ALS</a></li> <li><a href="/wiki/MPEG-4_SLS" title="MPEG-4 SLS">MPEG-4 SLS</a></li> <li><a href="/wiki/Super_Audio_CD#DST" title="Super Audio CD">MPEG-4 DST</a></li> <li><a href="/wiki/Harmonic_Vector_Excitation_Coding" title="Harmonic Vector Excitation Coding">MPEG-4 HVXC</a></li> <li><a href="/wiki/Code-excited_linear_prediction" title="Code-excited linear prediction">MPEG-4 CELP</a></li> <li><a href="/wiki/Unified_Speech_and_Audio_Coding" title="Unified Speech and Audio Coding">MPEG-D USAC</a></li> <li><a href="/wiki/MPEG-H_3D_Audio" title="MPEG-H 3D Audio">MPEG-H 3D Audio</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/ITU-T" title="ITU-T">ITU-T</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/G.711" title="G.711">G.711</a> <ul><li><a href="/wiki/A-law_algorithm" title="A-law algorithm">A-law</a></li> <li><a href="/wiki/%CE%9C-law_algorithm" title="Μ-law algorithm">µ-law</a></li></ul></li> <li><a href="/wiki/G.718" title="G.718">G.718</a></li> <li><a href="/wiki/G.719" title="G.719">G.719</a></li> <li><a href="/wiki/G.722" title="G.722">G.722</a></li> <li><a href="/wiki/G.722.1" title="G.722.1">G.722.1</a></li> <li><a href="/wiki/Adaptive_Multi-Rate_Wideband" title="Adaptive Multi-Rate Wideband">G.722.2</a></li> <li><a href="/wiki/G.723" title="G.723">G.723</a></li> <li><a href="/wiki/G.723.1" title="G.723.1">G.723.1</a></li> <li><a href="/wiki/G.726" title="G.726">G.726</a></li> <li><a href="/wiki/G.728" title="G.728">G.728</a></li> <li><a href="/wiki/G.729" title="G.729">G.729</a></li> <li><a href="/wiki/G.729.1" title="G.729.1">G.729.1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Opus_(audio_format)" title="Opus (audio format)">Opus</a></li> <li><a href="/wiki/Internet_Low_Bitrate_Codec" title="Internet Low Bitrate Codec">iLBC</a></li> <li><a href="/wiki/Speex" title="Speex">Speex</a></li> <li><a href="/wiki/Vorbis" title="Vorbis">Vorbis</a></li> <li><a href="/wiki/FLAC" title="FLAC">FLAC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/3GPP" title="3GPP">3GPP</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Adaptive_Multi-Rate_audio_codec" title="Adaptive Multi-Rate audio codec">AMR</a></li> <li><a href="/wiki/Adaptive_Multi-Rate_Wideband" title="Adaptive Multi-Rate Wideband">AMR-WB</a></li> <li><a href="/wiki/Extended_Adaptive_Multi-Rate_%E2%80%93_Wideband" title="Extended Adaptive Multi-Rate – Wideband">AMR-WB+</a></li> <li><a href="/wiki/Enhanced_Variable_Rate_Codec" title="Enhanced Variable Rate Codec">EVRC</a></li> <li><a href="/wiki/Enhanced_Variable_Rate_Codec_B" title="Enhanced Variable Rate Codec B">EVRC-B</a></li> <li><a href="/wiki/Enhanced_Voice_Services" title="Enhanced Voice Services">EVS</a></li> <li><a href="/wiki/Half_Rate" title="Half Rate">GSM-HR</a></li> <li><a href="/wiki/Full_Rate" title="Full Rate">GSM-FR</a></li> <li><a href="/wiki/Enhanced_full_rate" title="Enhanced full rate">GSM-EFR</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/ETSI" class="mw-redirect" title="ETSI">ETSI</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dolby_Digital" title="Dolby Digital">AC-3</a></li> <li><a href="/wiki/Dolby_AC-4" title="Dolby AC-4">AC-4</a></li> <li><a href="/wiki/DTS_(sound_system)" class="mw-redirect" title="DTS (sound system)">DTS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Bluetooth_Special_Interest_Group" title="Bluetooth Special Interest Group">Bluetooth SIG</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/SBC_(codec)" title="SBC (codec)">SBC</a></li> <li><a href="/wiki/LC3_(codec)" title="LC3 (codec)">LC3</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Chinese Standard</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Audio_Video_Standard#First_generation" title="Audio Video Standard">AVS1 P10</a>(GB/T 20090.10)</li> <li><a href="/wiki/Audio_Video_Standard#Second_generation" title="Audio Video Standard">AVS2 P3</a>(GB/T 33475.3) <ul><li><a href="/w/index.php?title=Audio_Vivid&action=edit&redlink=1" class="new" title="Audio Vivid (page does not exist)">Audio Vivid</a>(GY/T 363)</li></ul></li> <li><a href="/wiki/Dynamic_Resolution_Adaptation" title="Dynamic Resolution Adaptation">DRA</a>(GB/T 22726)</li> <li><a href="/wiki/L2HC" title="L2HC">L2HC</a></li> <li>ExAC(SJ/T 11299.4)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Algebraic_code-excited_linear_prediction" title="Algebraic code-excited linear prediction">ACELP</a></li> <li><a href="/wiki/Apple_Lossless_Audio_Codec" title="Apple Lossless Audio Codec">ALAC</a></li> <li><a href="/wiki/Asao_(codec)" title="Asao (codec)">Asao</a></li> <li><a href="/wiki/Adaptive_Transform_Acoustic_Coding" class="mw-redirect" title="Adaptive Transform Acoustic Coding">ATRAC</a></li> <li><a href="/wiki/CELT" title="CELT">CELT</a></li> <li><a href="/wiki/Codec_2" title="Codec 2">Codec 2</a></li> <li><a href="/wiki/Internet_Speech_Audio_Codec" title="Internet Speech Audio Codec">iSAC</a></li> <li><a href="/wiki/Lyra_(codec)" title="Lyra (codec)">Lyra</a></li> <li><a href="/wiki/Mixed-excitation_linear_prediction" title="Mixed-excitation linear prediction">MELP</a></li> <li><a href="/wiki/Monkey%27s_Audio" title="Monkey's Audio">Monkey's Audio</a></li> <li><a href="/wiki/MT9" title="MT9">MT9</a></li> <li><a href="/wiki/Musepack" title="Musepack">Musepack</a></li> <li><a href="/wiki/OptimFROG" title="OptimFROG">OptimFROG</a></li> <li><a href="/wiki/Original_Sound_Quality" title="Original Sound Quality">OSQ</a></li> <li><a href="/wiki/Qualcomm_code-excited_linear_prediction" title="Qualcomm code-excited linear prediction">QCELP</a></li> <li><a href="/wiki/Relaxed_code-excited_linear_prediction" title="Relaxed code-excited linear prediction">RCELP</a></li> <li><a href="/wiki/RealAudio" title="RealAudio">RealAudio</a></li> <li><a href="/wiki/RTAudio" title="RTAudio">RTAudio</a></li> <li><a href="/wiki/Avid_Audio#Sound_Designer_file_formats" title="Avid Audio">SD2</a></li> <li><a href="/wiki/Shorten_file_format" class="mw-redirect" title="Shorten file format">SHN</a></li> <li><a href="/wiki/SILK" title="SILK">SILK</a></li> <li><a href="/wiki/Siren_(codec)" title="Siren (codec)">Siren</a></li> <li><a href="/wiki/Selectable_Mode_Vocoder" title="Selectable Mode Vocoder">SMV</a></li> <li><a href="/wiki/SVOPC" title="SVOPC">SVOPC</a></li> <li>TTA <ul><li>True Audio</li></ul></li> <li><a href="/wiki/TwinVQ" title="TwinVQ">TwinVQ</a></li> <li><a href="/wiki/Variable-Rate_Multimode_Wideband" title="Variable-Rate Multimode Wideband">VMR-WB</a></li> <li><a href="/wiki/Vector_sum_excited_linear_prediction" title="Vector sum excited linear prediction">VSELP</a></li> <li><a href="/wiki/WavPack" title="WavPack">WavPack</a></li> <li><a href="/wiki/Windows_Media_Audio" title="Windows Media Audio">WMA</a></li> <li><a href="/wiki/Master_Quality_Authenticated" title="Master Quality Authenticated">MQA</a></li> <li><a href="/wiki/AptX" title="AptX">aptX</a></li> <li><a href="/wiki/AptX#aptX_HD" title="AptX">aptX HD</a></li> <li><a href="/wiki/AptX#aptX_Low_Latency" title="AptX">aptX Low Latency</a></li> <li><a href="/wiki/AptX#aptX_Adaptive" title="AptX">aptX Adaptive</a></li> <li><a href="/wiki/LDAC_(codec)" title="LDAC (codec)">LDAC</a></li> <li><a href="/wiki/LHDC_(codec)" title="LHDC (codec)">LHDC</a></li> <li><a href="/wiki/LHDC_(codec)#LLAC" title="LHDC (codec)">LLAC</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Image_compression" title="Image compression">Image<br />compression</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a>, <a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a>, <br /><a href="/wiki/World_Wide_Web_Consortium" title="World Wide Web Consortium">W3C</a>, <a href="/wiki/ITU-T" title="ITU-T">ITU-T</a>, <a href="/wiki/Joint_Photographic_Experts_Group" title="Joint Photographic Experts Group">JPEG</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Group_4_compression" title="Group 4 compression">CCITT Group 4</a></li> <li><a href="/wiki/GIF" title="GIF">GIF</a></li> <li><a href="/wiki/High_Efficiency_Image_File_Format#HEIC:_HEVC_in_HEIF" title="High Efficiency Image File Format">HEIC / HEIF</a></li> <li><a href="/wiki/High_Efficiency_Video_Coding#Main_Still_Picture" title="High Efficiency Video Coding">HEVC</a></li> <li><a href="/wiki/JBIG" title="JBIG">JBIG</a></li> <li><a href="/wiki/JBIG2" title="JBIG2">JBIG2</a></li> <li><a href="/wiki/JPEG" title="JPEG">JPEG</a></li> <li><a href="/wiki/JPEG_2000" title="JPEG 2000">JPEG 2000</a></li> <li><a href="/wiki/JPEG-LS" class="mw-redirect" title="JPEG-LS">JPEG-LS</a></li> <li><a href="/wiki/JPEG_XL" title="JPEG XL">JPEG XL</a></li> <li><a href="/wiki/JPEG_XR" title="JPEG XR">JPEG XR</a></li> <li><a href="/wiki/JPEG_XS" title="JPEG XS">JPEG XS</a></li> <li><a href="/wiki/JPEG_XT" title="JPEG XT">JPEG XT</a></li> <li><a href="/wiki/Portable_Network_Graphics" class="mw-redirect" title="Portable Network Graphics">PNG</a></li> <li><a href="/wiki/TIFF" title="TIFF">TIFF</a></li> <li><a href="/wiki/TIFF/EP" title="TIFF/EP">TIFF/EP</a></li> <li><a href="/wiki/TIFF/IT" class="mw-redirect" title="TIFF/IT">TIFF/IT</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/APNG" title="APNG">APNG</a></li> <li><a href="/wiki/AV1" title="AV1">AV1</a></li> <li><a href="/wiki/AVIF" title="AVIF">AVIF</a></li> <li><a href="/wiki/Better_Portable_Graphics" title="Better Portable Graphics">BPG</a></li> <li><a href="/wiki/DjVu" title="DjVu">DjVu</a></li> <li><a href="/wiki/OpenEXR" title="OpenEXR">EXR</a></li> <li><a href="/wiki/Free_Lossless_Image_Format" title="Free Lossless Image Format">FLIF</a></li> <li><a href="/wiki/ICER_(file_format)" title="ICER (file format)">ICER</a></li> <li><a href="/wiki/Multiple-image_Network_Graphics" title="Multiple-image Network Graphics">MNG</a></li> <li><a href="/wiki/Progressive_Graphics_File" title="Progressive Graphics File">PGF</a></li> <li><a href="/wiki/QOI_(image_format)" title="QOI (image format)">QOI</a></li> <li><a href="/wiki/QuickTime_VR" title="QuickTime VR">QTVR</a></li> <li><a href="/wiki/Wireless_Application_Protocol_Bitmap_Format" title="Wireless Application Protocol Bitmap Format">WBMP</a></li> <li><a href="/wiki/WebP" title="WebP">WebP</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Digital_container_format" class="mw-redirect" title="Digital container format">Containers</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MPEG_elementary_stream" title="MPEG elementary stream">MPEG-ES</a> <ul><li><a href="/wiki/Packetized_elementary_stream" title="Packetized elementary stream">MPEG-PES</a></li></ul></li> <li><a href="/wiki/MPEG_program_stream" title="MPEG program stream">MPEG-PS</a></li> <li><a href="/wiki/MPEG_transport_stream" title="MPEG transport stream">MPEG-TS</a></li> <li><a href="/wiki/ISO/IEC_base_media_file_format" class="mw-redirect" title="ISO/IEC base media file format">ISO/IEC base media file format</a></li> <li><a href="/wiki/MPEG-4_Part_14" class="mw-redirect" title="MPEG-4 Part 14">MPEG-4 Part 14</a> (MP4)</li> <li><a href="/wiki/Motion_JPEG_2000" title="Motion JPEG 2000">Motion JPEG 2000</a></li> <li><a href="/wiki/MPEG-21" title="MPEG-21">MPEG-21 Part 9</a></li> <li><a href="/wiki/MPEG_media_transport" title="MPEG media transport">MPEG media transport</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/ITU-T" title="ITU-T">ITU-T</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MPEG-2#Systems" title="MPEG-2">H.222.0</a></li> <li><a href="/wiki/Motion_JPEG_2000" title="Motion JPEG 2000">T.802</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Real-time_Transport_Protocol" title="Real-time Transport Protocol">RTP</a></li> <li><a href="/wiki/Ogg" title="Ogg">Ogg</a></li> <li><a href="/wiki/Matroska" title="Matroska">Matroska</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Society_of_Motion_Picture_and_Television_Engineers" title="Society of Motion Picture and Television Engineers">SMPTE</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/General_Exchange_Format" title="General Exchange Format">GXF</a></li> <li><a href="/wiki/Material_Exchange_Format" title="Material Exchange Format">MXF</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3GP_and_3G2" title="3GP and 3G2">3GP and 3G2</a></li> <li><a href="/wiki/AMV_video_format" title="AMV video format">AMV</a></li> <li><a href="/wiki/Advanced_Systems_Format" title="Advanced Systems Format">ASF</a></li> <li><a href="/wiki/Audio_Interchange_File_Format" title="Audio Interchange File Format">AIFF</a></li> <li><a href="/wiki/Audio_Video_Interleave" title="Audio Video Interleave">AVI</a></li> <li><a href="/wiki/Au_file_format" title="Au file format">AU</a></li> <li><a href="/wiki/Better_Portable_Graphics" title="Better Portable Graphics">BPG</a></li> <li><a href="/wiki/Bink_Video" title="Bink Video">Bink</a> <ul><li><a href="/wiki/Smacker_video" title="Smacker video">Smacker</a></li></ul></li> <li><a href="/wiki/BMP_file_format" title="BMP file format">BMP</a></li> <li><a href="/wiki/DivX#DivX_Media_Format_(DMF)" title="DivX">DivX Media Format</a></li> <li><a href="/wiki/Enhanced_VOB" title="Enhanced VOB">EVO</a></li> <li><a href="/wiki/Flash_Video" title="Flash Video">Flash Video</a></li> <li><a href="/wiki/High_Efficiency_Image_File_Format" title="High Efficiency Image File Format">HEIF</a></li> <li><a href="/wiki/Interchange_File_Format" title="Interchange File Format">IFF</a></li> <li><a href="/wiki/.m2ts" title=".m2ts">M2TS</a></li> <li><a href="/wiki/Matroska" title="Matroska">Matroska</a> <ul><li><a href="/wiki/WebM" title="WebM">WebM</a></li></ul></li> <li><a href="/wiki/QuickTime_File_Format" title="QuickTime File Format">QuickTime File Format</a></li> <li><a href="/wiki/RatDVD" title="RatDVD">RatDVD</a></li> <li><a href="/wiki/RealMedia" title="RealMedia">RealMedia</a></li> <li><a href="/wiki/Resource_Interchange_File_Format" title="Resource Interchange File Format">RIFF</a> <ul><li><a href="/wiki/WAV" title="WAV">WAV</a></li></ul></li> <li><a href="/wiki/MOD_and_TOD" title="MOD and TOD">MOD and TOD</a></li> <li><a href="/wiki/VOB" title="VOB">VOB, IFO and BUP</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Collaborations</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NETVC" title="NETVC">NETVC</a></li> <li><a href="/wiki/MPEG_LA" title="MPEG LA">MPEG LA</a></li> <li><a href="/wiki/Alliance_for_Open_Media" title="Alliance for Open Media">Alliance for Open Media</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Data_compression" title="Data compression">Methods</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Entropy_encoding" class="mw-redirect" title="Entropy encoding">Entropy</a> <ul><li><a href="/wiki/Arithmetic_coding" title="Arithmetic coding">Arithmetic</a></li> <li><a href="/wiki/Huffman_coding" title="Huffman coding">Huffman</a></li> <li><a href="/wiki/Modified_Huffman_coding" title="Modified Huffman coding">Modified</a></li></ul></li> <li><a href="/wiki/Linear_predictive_coding" title="Linear predictive coding">LPC</a> <ul><li><a href="/wiki/Algebraic_code-excited_linear_prediction" title="Algebraic code-excited linear prediction">ACELP</a></li> <li><a href="/wiki/Code-excited_linear_prediction" title="Code-excited linear prediction">CELP</a></li> <li><a href="/wiki/Line_spectral_pairs" title="Line spectral pairs">LSP</a></li> <li><a href="/wiki/Warped_linear_predictive_coding" title="Warped linear predictive coding">WLPC</a></li></ul></li> <li><a href="/wiki/Lossless_compression" title="Lossless compression">Lossless</a></li> <li><a href="/wiki/Lossy_compression" title="Lossy compression">Lossy</a></li> <li><a href="/wiki/LZ77_and_LZ78" title="LZ77 and LZ78">LZ</a> <ul><li><a href="/wiki/DEFLATE" class="mw-redirect" title="DEFLATE">DEFLATE</a></li> <li><a href="/wiki/Lempel%E2%80%93Ziv%E2%80%93Welch" title="Lempel–Ziv–Welch">LZW</a></li></ul></li> <li><a href="/wiki/Pulse-code_modulation" title="Pulse-code modulation">PCM</a> <ul><li><a href="/wiki/A-law_algorithm" title="A-law algorithm">A-law</a></li> <li><a href="/wiki/%CE%9C-law_algorithm" title="Μ-law algorithm">µ-law</a></li> <li><a href="/wiki/Adaptive_differential_pulse-code_modulation" title="Adaptive differential pulse-code modulation">ADPCM</a></li> <li><a href="/wiki/Differential_pulse-code_modulation" title="Differential pulse-code modulation">DPCM</a></li></ul></li> <li><a href="/wiki/Transform_coding" title="Transform coding">Transforms</a> <ul><li><a href="/wiki/Discrete_cosine_transform" title="Discrete cosine transform">DCT</a></li> <li><a href="/wiki/Fast_Fourier_transform" title="Fast Fourier transform">FFT</a></li> <li><a href="/wiki/Modified_discrete_cosine_transform" title="Modified discrete cosine transform">MDCT</a></li> <li><a href="/wiki/Wavelet" title="Wavelet">Wavelet</a> <ul><li><a href="/wiki/Daubechies_wavelet" title="Daubechies wavelet">Daubechies</a></li> <li><a href="/wiki/Discrete_wavelet_transform" title="Discrete wavelet transform">DWT</a></li></ul></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Lists</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Comparison_of_audio_coding_formats" title="Comparison of audio coding formats">Comparison of audio coding formats</a></li> <li><a href="/wiki/Comparison_of_video_codecs" title="Comparison of video codecs">Comparison of video codecs</a></li> <li><a href="/wiki/List_of_codecs" title="List of codecs">List of codecs</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>See <a href="/wiki/Template:Compression_methods" title="Template:Compression methods">Compression methods</a> for techniques and <a href="/wiki/Template:Compression_software" title="Template:Compression software">Compression software</a> for codecs</div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="MPEG_(Moving_Picture_Experts_Group)" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:MPEG" title="Template:MPEG"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:MPEG" title="Template talk:MPEG"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:MPEG" title="Special:EditPage/Template:MPEG"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="MPEG_(Moving_Picture_Experts_Group)" style="font-size:114%;margin:0 4em"><a href="/wiki/Moving_Picture_Experts_Group" title="Moving Picture Experts Group">MPEG (Moving Picture Experts Group)</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2" style="font-size:115%;"><div> <ul><li><a href="/wiki/MPEG-1" title="MPEG-1">MPEG-1</a></li> <li><a href="/wiki/MPEG-2" title="MPEG-2">2</a></li> <li><a href="/wiki/MPEG-3" title="MPEG-3">3</a></li> <li><a href="/wiki/MPEG-4" title="MPEG-4">4</a></li> <li><a href="/wiki/MPEG-7" title="MPEG-7">7</a></li> <li><a href="/wiki/MPEG-21" title="MPEG-21">21</a></li> <li><a href="/wiki/MPEG-A" title="MPEG-A">A</a></li> <li>B</li> <li>C</li> <li><a href="/wiki/MPEG-D" title="MPEG-D">D</a></li> <li>E</li> <li><a href="/wiki/MPEG-G" title="MPEG-G">G</a></li> <li>V</li> <li>M</li> <li>U</li> <li><a href="/wiki/MPEG-H" title="MPEG-H">H</a></li> <li><a href="/w/index.php?title=MPEG-I&action=edit&redlink=1" class="new" title="MPEG-I (page does not exist)">I</a></li> <li><a href="/wiki/MPEG-5" class="mw-redirect" title="MPEG-5">5</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">MPEG-1 Parts</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Part 1: Systems <ul><li><a href="/wiki/MPEG_program_stream" title="MPEG program stream">Program stream</a></li></ul></li> <li>Part 2: Video <ul><li>based on <a href="/wiki/H.261" title="H.261">H.261</a></li></ul></li> <li>Part 3: Audio <ul><li><a href="/wiki/MPEG-1_Audio_Layer_I" title="MPEG-1 Audio Layer I">Layer I</a></li> <li><a href="/wiki/MPEG-1_Audio_Layer_II" title="MPEG-1 Audio Layer II">Layer II</a></li> <li><a href="/wiki/MP3" title="MP3">Layer III</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">MPEG-2 Parts</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Part 1: Systems (H.222.0) <ul><li><a href="/wiki/MPEG_transport_stream" title="MPEG transport stream">Transport stream</a></li> <li><a href="/wiki/MPEG_program_stream" title="MPEG program stream">Program stream</a></li></ul></li> <li><a href="/wiki/H.262/MPEG-2_Part_2" title="H.262/MPEG-2 Part 2">Part 2: Video (H.262)</a></li> <li><a href="/wiki/MPEG-2_Part_3" title="MPEG-2 Part 3">Part 3: Audio</a> <ul><li><a href="/wiki/MPEG-1_Audio_Layer_I" title="MPEG-1 Audio Layer I">Layer I</a></li> <li><a href="/wiki/MPEG-2_Audio_Layer_II" class="mw-redirect" title="MPEG-2 Audio Layer II">Layer II</a></li> <li><a href="/wiki/MP3" title="MP3">Layer III</a></li> <li><a href="/wiki/MPEG_Multichannel" title="MPEG Multichannel">MPEG Multichannel</a></li></ul></li> <li><a href="/wiki/DSM_CC" title="DSM CC">Part 6: DSM CC</a></li> <li><a href="/wiki/Advanced_Audio_Coding" title="Advanced Audio Coding">Part 7: Advanced Audio Coding</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">MPEG-4 Parts</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">Part 2: Video</a> <ul><li>based on <a href="/wiki/H.263" title="H.263">H.263</a></li></ul></li> <li><a href="/wiki/MPEG-4_Part_3" title="MPEG-4 Part 3">Part 3: Audio</a></li> <li><a href="/wiki/Delivery_Multimedia_Integration_Framework" title="Delivery Multimedia Integration Framework">Part 6: DMIF</a></li> <li><a href="/wiki/Advanced_Video_Coding" title="Advanced Video Coding">Part 10: Advanced Video Coding (H.264)</a></li> <li><a href="/wiki/MPEG-4_Part_11" title="MPEG-4 Part 11">Part 11: Scene description</a></li> <li><a href="/wiki/ISO_base_media_file_format" title="ISO base media file format">Part 12: ISO base media file format</a></li> <li><a href="/wiki/MPEG-4_Part_14" class="mw-redirect" title="MPEG-4 Part 14">Part 14: MP4 file format</a></li> <li><a href="/wiki/MPEG-4_Part_17" title="MPEG-4 Part 17">Part 17: Streaming text format</a></li> <li><a href="/wiki/MPEG-4_Part_20" title="MPEG-4 Part 20">Part 20: LASeR</a></li> <li><a href="/wiki/Open_Font_Format" class="mw-redirect" title="Open Font Format">Part 22: Open Font Format</a></li> <li><a href="/wiki/Internet_Video_Coding" title="Internet Video Coding">Part 33: Internet Video Coding</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">MPEG-7 Parts</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Description_Definition_Language" title="Description Definition Language">Part 2: Description definition language</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">MPEG-21 Parts</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Digital_Item" title="Digital Item">Parts 2, 3 and 9: Digital Item</a></li> <li><a href="/wiki/Rights_Expression_Language" title="Rights Expression Language">Part 5: Rights Expression Language</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">MPEG-D Parts</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MPEG_Surround" title="MPEG Surround">Part 1: MPEG Surround</a></li> <li><a href="/wiki/Unified_Speech_and_Audio_Coding" title="Unified Speech and Audio Coding">Part 3: Unified Speech and Audio Coding</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">MPEG-G Parts</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MPEG-G" title="MPEG-G">Part 1: Transport and Storage of Genomic Information</a></li> <li><a href="/wiki/MPEG-G" title="MPEG-G">Part 2: Coding of Genomic Information</a></li> <li><a href="/wiki/MPEG-G" title="MPEG-G">Part 3: APIs</a></li> <li><a href="/wiki/MPEG-G" title="MPEG-G">Part 4: Reference Software</a></li> <li><a href="/wiki/MPEG-G" title="MPEG-G">Part 5: Conformance</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">MPEG-H Parts</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MPEG_media_transport" title="MPEG media transport">Part 1: MPEG media transport</a></li> <li><a href="/wiki/High_Efficiency_Video_Coding" title="High Efficiency Video Coding">Part 2: High Efficiency Video Coding (H.265)</a></li> <li><a href="/wiki/MPEG-H_3D_Audio" title="MPEG-H 3D Audio">Part 3: MPEG-H 3D Audio</a></li> <li><a href="/wiki/High_Efficiency_Image_File_Format" title="High Efficiency Image File Format">Part 12: High Efficiency Image File Format</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">MPEG-I Parts</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Versatile_Video_Coding" title="Versatile Video Coding">Part 3: Versatile Video Coding (H.266)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">MPEG-5 Parts</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Essential_Video_Coding" title="Essential Video Coding">Part 1: Essential Video Coding</a></li> <li><a href="/wiki/LCEVC" title="LCEVC">Part 2: Low Complexity Enhancement Video Coding</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><a href="/wiki/Dynamic_Adaptive_Streaming_over_HTTP" title="Dynamic Adaptive Streaming over HTTP">MPEG-DASH</a></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=MPEG-4_Part_2&oldid=1228469052">https://en.wikipedia.org/w/index.php?title=MPEG-4_Part_2&oldid=1228469052</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:MPEG-4" title="Category:MPEG-4">MPEG-4</a></li><li><a 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