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data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Conteníu</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mover a la barra llateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">despintar</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Entamu</div> </a> </li> <li id="toc-Ciclu_de_desenvolvimientu_de_los_códecs" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Ciclu_de_desenvolvimientu_de_los_códecs"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Ciclu de desenvolvimientu de los códecs</span> </div> </a> <ul id="toc-Ciclu_de_desenvolvimientu_de_los_códecs-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Meyores_nel_funcionamientu_de_los_códecs" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Meyores_nel_funcionamientu_de_los_códecs"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Meyores nel funcionamientu de los códecs</span> </div> </a> <button aria-controls="toc-Meyores_nel_funcionamientu_de_los_códecs-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Alternar subsección Meyores nel funcionamientu de los códecs</span> </button> <ul id="toc-Meyores_nel_funcionamientu_de_los_códecs-sublist" class="vector-toc-list"> <li id="toc-Compensación_de_movimientu" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Compensación_de_movimientu"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Compensación de movimientu</span> </div> </a> <ul id="toc-Compensación_de_movimientu-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Codificación_de_la_tresformada" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Codificación_de_la_tresformada"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Codificación de la tresformada</span> </div> </a> <ul id="toc-Codificación_de_la_tresformada-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Codificación_estadística" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Codificación_estadística"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Codificación estadística</span> </div> </a> <ul id="toc-Codificación_estadística-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Ver_tamién" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Ver_tamién"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Ver tamién</span> </div> </a> <ul id="toc-Ver_tamién-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referencies" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referencies"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Referencies</span> </div> </a> <ul id="toc-Referencies-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Enllaces_esternos" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Enllaces_esternos"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Enllaces esternos</span> </div> </a> <ul id="toc-Enllaces_esternos-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="Conteníu" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Tabla de conteníos" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Cambiar a la tabla de contenidos" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Cambiar a la tabla de contenidos</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Códec</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ir a un artículo en otro idioma. Disponible en 47 idiomas" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-47" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">47 llingües</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Kodek" title="Kodek – afrikaans" lang="af" hreflang="af" data-title="Kodek" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%B1%D9%85%D8%B2_%D9%88%D9%81%D8%A7%D9%83_%D8%AA%D8%B1%D9%85%D9%8A%D8%B2" title="مرمز وفاك ترميز – árabe" lang="ar" hreflang="ar" data-title="مرمز وفاك ترميز" data-language-autonym="العربية" data-language-local-name="árabe" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9A%D0%BE%D0%B4%D0%B5%D0%BA" title="Кодек – búlgaru" lang="bg" hreflang="bg" data-title="Кодек" data-language-autonym="Български" data-language-local-name="búlgaru" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Codec" title="Codec – bosniu" lang="bs" hreflang="bs" data-title="Codec" data-language-autonym="Bosanski" data-language-local-name="bosniu" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/C%C3%B2dec" title="Còdec – catalán" lang="ca" hreflang="ca" data-title="Còdec" data-language-autonym="Català" data-language-local-name="catalán" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Kodek" title="Kodek – checu" lang="cs" hreflang="cs" data-title="Kodek" data-language-autonym="Čeština" data-language-local-name="checu" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Codec" title="Codec – danés" lang="da" hreflang="da" data-title="Codec" data-language-autonym="Dansk" data-language-local-name="danés" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Codec" title="Codec – alemán" lang="de" hreflang="de" data-title="Codec" data-language-autonym="Deutsch" data-language-local-name="alemán" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Codec" title="Codec – inglés" lang="en" hreflang="en" data-title="Codec" data-language-autonym="English" data-language-local-name="inglés" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Kodeko" title="Kodeko – esperanto" lang="eo" hreflang="eo" data-title="Kodeko" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/C%C3%B3dec" title="Códec – español" lang="es" hreflang="es" data-title="Códec" data-language-autonym="Español" data-language-local-name="español" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Koodek" title="Koodek – estoniu" lang="et" hreflang="et" data-title="Koodek" data-language-autonym="Eesti" data-language-local-name="estoniu" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Codec" title="Codec – vascu" lang="eu" hreflang="eu" data-title="Codec" data-language-autonym="Euskara" data-language-local-name="vascu" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%A9%D8%AF%DA%A9" title="کدک – persa" lang="fa" hreflang="fa" data-title="کدک" data-language-autonym="فارسی" data-language-local-name="persa" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Koodekki" title="Koodekki – finlandés" lang="fi" hreflang="fi" data-title="Koodekki" data-language-autonym="Suomi" data-language-local-name="finlandés" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Codec" title="Codec – francés" lang="fr" hreflang="fr" data-title="Codec" data-language-autonym="Français" data-language-local-name="francés" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Codec" title="Codec – irlandés" lang="ga" hreflang="ga" data-title="Codec" data-language-autonym="Gaeilge" data-language-local-name="irlandés" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/C%C3%B3dec" title="Códec – gallegu" lang="gl" hreflang="gl" data-title="Códec" data-language-autonym="Galego" data-language-local-name="gallegu" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A7%D7%95%D7%93%D7%A7" title="קודק – hebréu" lang="he" hreflang="he" data-title="קודק" data-language-autonym="עברית" data-language-local-name="hebréu" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Kodek" title="Kodek – croata" lang="hr" hreflang="hr" data-title="Kodek" data-language-autonym="Hrvatski" data-language-local-name="croata" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Kodek" title="Kodek – húngaru" lang="hu" hreflang="hu" data-title="Kodek" data-language-autonym="Magyar" data-language-local-name="húngaru" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Kodek" title="Kodek – indonesiu" lang="id" hreflang="id" data-title="Kodek" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiu" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Codec" title="Codec – italianu" lang="it" hreflang="it" data-title="Codec" data-language-autonym="Italiano" data-language-local-name="italianu" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B3%E3%83%BC%E3%83%87%E3%83%83%E3%82%AF" title="コーデック – xaponés" lang="ja" hreflang="ja" data-title="コーデック" data-language-autonym="日本語" data-language-local-name="xaponés" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9A%D0%BE%D0%B4%D0%B5%D0%BA" title="Кодек – kazaquistanín" lang="kk" hreflang="kk" data-title="Кодек" data-language-autonym="Қазақша" data-language-local-name="kazaquistanín" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%BD%94%EB%8D%B1" title="코덱 – coreanu" lang="ko" hreflang="ko" data-title="코덱" data-language-autonym="한국어" data-language-local-name="coreanu" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Codec" title="Codec – lombardu" lang="lmo" hreflang="lmo" data-title="Codec" data-language-autonym="Lombard" data-language-local-name="lombardu" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Kodekas" title="Kodekas – lituanu" lang="lt" hreflang="lt" data-title="Kodekas" data-language-autonym="Lietuvių" data-language-local-name="lituanu" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9A%D0%BE%D0%B4%D0%B5%D0%BA" title="Кодек – macedoniu" lang="mk" hreflang="mk" data-title="Кодек" data-language-autonym="Македонски" data-language-local-name="macedoniu" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%95%E0%B5%8B%E0%B4%A1%E0%B5%86%E0%B4%95%E0%B5%8D" title="കോഡെക് – malayalam" lang="ml" hreflang="ml" data-title="കോഡെക്" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Codec" title="Codec – neerlandés" lang="nl" hreflang="nl" data-title="Codec" data-language-autonym="Nederlands" data-language-local-name="neerlandés" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Kodek" title="Kodek – noruegu Nynorsk" lang="nn" hreflang="nn" data-title="Kodek" data-language-autonym="Norsk nynorsk" data-language-local-name="noruegu Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Kodek" title="Kodek – noruegu Bokmål" lang="nb" hreflang="nb" data-title="Kodek" data-language-autonym="Norsk bokmål" data-language-local-name="noruegu Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Kodek" title="Kodek – polacu" lang="pl" hreflang="pl" data-title="Kodek" data-language-autonym="Polski" data-language-local-name="polacu" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Codec" title="Codec – piamontés" lang="pms" hreflang="pms" data-title="Codec" data-language-autonym="Piemontèis" data-language-local-name="piamontés" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Codec" title="Codec – portugués" lang="pt" hreflang="pt" data-title="Codec" data-language-autonym="Português" data-language-local-name="portugués" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Codec" title="Codec – rumanu" lang="ro" hreflang="ro" data-title="Codec" data-language-autonym="Română" data-language-local-name="rumanu" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9A%D0%BE%D0%B4%D0%B5%D0%BA" title="Кодек – rusu" lang="ru" hreflang="ru" data-title="Кодек" data-language-autonym="Русский" data-language-local-name="rusu" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Kodek" title="Kodek – eslovacu" lang="sk" hreflang="sk" data-title="Kodek" data-language-autonym="Slovenčina" data-language-local-name="eslovacu" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9A%D0%BE%D0%B4%D0%B5%D0%BA" title="Кодек – serbiu" lang="sr" hreflang="sr" data-title="Кодек" data-language-autonym="Српски / srpski" data-language-local-name="serbiu" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Kodek" title="Kodek – suecu" lang="sv" hreflang="sv" data-title="Kodek" data-language-autonym="Svenska" data-language-local-name="suecu" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AF%8B%E0%AE%9F%E0%AF%86%E0%AE%95%E0%AF%8D" title="கோடெக் – tamil" lang="ta" hreflang="ta" data-title="கோடெக்" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%82%E0%B8%84%E0%B9%80%E0%B8%94%E0%B8%81" title="โคเดก – tailandés" lang="th" hreflang="th" data-title="โคเดก" data-language-autonym="ไทย" data-language-local-name="tailandés" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/%C3%87%C3%B6z%C3%BCc%C3%BC_(bilgisayar)" title="Çözücü (bilgisayar) – turcu" lang="tr" hreflang="tr" data-title="Çözücü (bilgisayar)" data-language-autonym="Türkçe" data-language-local-name="turcu" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9A%D0%BE%D0%B4%D0%B5%D0%BA" title="Кодек – ucraín" lang="uk" hreflang="uk" data-title="Кодек" data-language-autonym="Українська" data-language-local-name="ucraín" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Codec" title="Codec – vietnamín" lang="vi" hreflang="vi" data-title="Codec" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamín" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%BC%96%E8%A7%A3%E7%A0%81%E5%99%A8" title="编解码器 – chinu" lang="zh" hreflang="zh" data-title="编解码器" data-language-autonym="中文" data-language-local-name="chinu" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q184748#sitelinks-wikipedia" title="Editar los enllaces d'interllingua" class="wbc-editpage">Editar los enllaces</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div 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class="mbox-text"><div class="mbox-text-span">Esti artículu o seición necesita <b>referencies</b> qu'apaezan nuna <b><a href="/wiki/Wikipedia:Verificabilid%C3%A1" title="Wikipedia:Verificabilidá">publicación acreitada</a></b>, como revistes especializaes, monografíes, prensa diaria o páxines d'Internet fiables.<span class="hide-when-compact"> <br /><span style="font-size:88%">Pues añadiles tu mesmu o avisar <a class="external text" href="https://ast.wikipedia.org/w/index.php?title=C%C3%B3dec&action=history">al autor principal del artículu</a> na so páxina d'alderique pegando: <code>{{subst:Avisu referencies|Códec}} ~~~~</code></span></span></div></td></tr></tbody></table> <table class="infobox" style="font-size:90%;width:25em"><caption class="summary" style="font-weight:bold;background:Moccasin;"><span style="float:left; margin-left: 3px;"><span class="skin-invert" typeof="mw:File"><span title="Ficha de software"><img alt="Ficha de software" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Crystal_Clear_app_winprops_bw.svg/25px-Crystal_Clear_app_winprops_bw.svg.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Crystal_Clear_app_winprops_bw.svg/38px-Crystal_Clear_app_winprops_bw.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Crystal_Clear_app_winprops_bw.svg/50px-Crystal_Clear_app_winprops_bw.svg.png 2x" data-file-width="128" data-file-height="128" /></span></span></span>Códec</caption><tbody><tr><td colspan="2" style="text-align:center"></td></tr><tr><th scope="row" style="text-align:left;background:#eeeeee; white-space: nowrap;"><a href="/w/index.php?title=Categor%C3%ADa:Software_por_tipu&action=edit&redlink=1" class="new" title="Categoría:Software por tipu (la páxina nun esiste)">Tipu</a></th><td> <a href="https://www.wikidata.org/wiki/Special:EntityPage/Q17155032" class="extiw" title="d:Special:EntityPage/Q17155032">tipu de software</a> y <a href="https://www.wikidata.org/wiki/Special:EntityPage/Q4485156" class="extiw" title="d:Special:EntityPage/Q4485156">funcionalidá de software</a></td></tr><tr><td colspan="2" style="text-align:right"><span typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q184748" title="Cambiar los datos en Wikidata"><img alt="Cambiar los datos en Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/12px-Arbcom_ru_editing.svg.png" decoding="async" width="12" height="12" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/18px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/24px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr></tbody></table> <p>Un <b>códec</b> ye un programa o dispositivu hardware capaz de codificar o decodificar una señal o fluxu de datos dixitales. Códec ye un acrónimu de <i>codificador-decodificador</i> o, menos comúnmente, <i>compresor-descompresor</i>. El so usu ta bien estendíu pa la codificación de señales d'audiu y videu dientro d'un formatu contenedor. </p><p>Describe una <a href="/w/index.php?title=Especificaci%C3%B3n&action=edit&redlink=1" class="new" title="Especificación (la páxina nun esiste)">especificación</a> desenvuelta en <a href="/wiki/Software" class="mw-redirect" title="Software">software</a>, <a href="/wiki/Hardware" class="mw-redirect" title="Hardware">hardware</a> o una combinación de dambos, capaz de tresformar un archivu con un fluxu de datos (<i><a href="/w/index.php?title=Fluxu_de_datos&action=edit&redlink=1" class="new" title="Fluxu de datos (la páxina nun esiste)">stream</a></i>) o una señal. Los códecs pueden codificar el fluxu o la señal (de cutiu pa la tresmisión, l'almacenaxe o'l cifráu) y recuperalo o descifralo de la mesma pa la reproducción o la manipulación nun formatu más apropiáu pa estes operaciones. Los códecs son usaos de cutiu en videoconferencias y emisiones de medios de comunicación. </p><p>La mayor parte de códecs provoca perdes d'información pa consiguir un tamañu lo más pequeño posible del archivu destino. Hai tamién códecs ensin perdes (<i>lossless</i>), pero na mayor parte d'aplicaciones práutiques, pa un aumentu cuasi imperceptible de la calidá nun merez la pena un aumentu considerable del tamañu de los datos. La esceición ye si los datos van sufrir otros tratamientos nel futuru. Nesti casu, una codificación repitida con perdes a la llarga estropiaría demasiáu la calidá. </p><p>Munchos archivos multimedia contienen tantu datos d'audiu como de videu, y de cutiu dalguna referencia que dexa la sincronización del audiu y el videu. Cada unu d'estos trés fluxos de datos puede ser remanáu con programes, procesos, o hardware distintos; pero por que estos <i>streams</i> sían útiles p'almacenalos o tresmitilos, tienen de ser encapsulados xuntos. Esta función ye realizada por un formatu d'archivu de videu (<a href="/w/index.php?title=Contenedor_multimedia&action=edit&redlink=1" class="new" title="Contenedor multimedia (la páxina nun esiste)">contenedor</a>), como <a href="/w/index.php?title=.mpg&action=edit&redlink=1" class="new" title=".mpg (la páxina nun esiste)">.mpg</a>, <a href="/w/index.php?title=.avi&action=edit&redlink=1" class="new" title=".avi (la páxina nun esiste)">.avi</a>, <a href="/w/index.php?title=.mov&action=edit&redlink=1" class="new" title=".mov (la páxina nun esiste)">.mov</a>, <a href="/w/index.php?title=.mp4&action=edit&redlink=1" class="new" title=".mp4 (la páxina nun esiste)">.mp4</a>, <a href="/w/index.php?title=.rm&action=edit&redlink=1" class="new" title=".rm (la páxina nun esiste)">.rm</a>, <a href="/w/index.php?title=.ogg&action=edit&redlink=1" class="new" title=".ogg (la páxina nun esiste)">.ogg</a>, <a href="/w/index.php?title=.mkv&action=edit&redlink=1" class="new" title=".mkv (la páxina nun esiste)">.mkv</a> o <a href="/w/index.php?title=.tta&action=edit&redlink=1" class="new" title=".tta (la páxina nun esiste)">.tta</a>. Dalgunos d'estos formatos tán llindaos a contener <i>streams</i> que s'amenorguen a un pequeñu xuegu de códecs, ente qu'otros son usaos pa oxetivos más xenerales. </p><p>Un <i>endec</i> ye un conceutu similar (pero non idénticu) pal hardware. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Ciclu_de_desenvolvimientu_de_los_códecs"><span id="Ciclu_de_desenvolvimientu_de_los_c.C3.B3decs"></span>Ciclu de desenvolvimientu de los códecs</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=C%C3%B3dec&veaction=edit&section=1" title="Editar seición: Ciclu de desenvolvimientu de los códecs" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=C%C3%B3dec&action=edit&section=1" title="Editar el código fuente de la sección: Ciclu de desenvolvimientu de los códecs"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>N'<a href="/wiki/Inxenier%C3%ADa" title="Inxeniería">inxeniería</a>, un <b>ciclu de desenvolvimientu</b> ye'l periodu que trescurre dende la implementación d'un <a href="/w/index.php?title=Norma_(teunolox%C3%ADa)&action=edit&redlink=1" class="new" title="Norma (teunoloxía) (la páxina nun esiste)">estándar</a> <a href="/wiki/Teunolox%C3%ADa" title="Teunoloxía">teunolóxicu</a> hasta'l desenvolvimientu de nueves ferramientes de mayor complexidá y <a href="/w/index.php?title=Eficiencia&action=edit&redlink=1" class="new" title="Eficiencia (la páxina nun esiste)">eficiencia</a>. </p><p>Nel mundu de la compresión dixital, un ciclu de desenvolvimientu corresponder col tiempu de vida de les meyores d'un sistema; por casu, un sistema de compresión va sufriendo cambeos pa la meyora de la so eficiencia desque se estandariza. Esto produciráse hasta'l desenvolvimientu de nueves ferramientes que traigan una ganancia na eficiencia de la calidá. Entós va cerrase un ciclu de desenvolvimientu pal sistema de compresión en cuestión. </p><p>Pa los nuevos códecs búscase qu'estos tengan un sistema de compresión cada vez más intelixente, ye dicir que sían capaces d'afaer-s'a'l tipu de conteníu de les imáxenes y amás xeneren una tasa de bits cada vez menor pa ufiertar un mesmu nivel calidable. </p><p>Aproximao'l ciclu de desenvolvimientu d'un sistema ye de 5 a 8 años. Siempres teniendo en cuenta qu'esta cifra varia pa cada sistema en concretu. Si falamos en términos d'eficiencia, podemos citar l'exemplu de la SDTV (<i>Standard Definition TV</i>), ónde la ganancia establezse aproximao ente un 5 y 10% per añu trescurríu. </p> <div class="mw-heading mw-heading2"><h2 id="Meyores_nel_funcionamientu_de_los_códecs"><span id="Meyores_nel_funcionamientu_de_los_c.C3.B3decs"></span>Meyores nel funcionamientu de los códecs</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=C%C3%B3dec&veaction=edit&section=2" title="Editar seición: Meyores nel funcionamientu de los códecs" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=C%C3%B3dec&action=edit&section=2" title="Editar el código fuente de la sección: Meyores nel funcionamientu de los códecs"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Los sistemes de compresión de videu dixital básense toos nuna estructura común. De primeres, estrayen la información redundante de les imáxenes, de cuenta que por aciu la unviada d'esa información puedan ser reconstruyíes nel receptor. De segundes, los sistemes lleven a cabo aproximaciones de la señal, col fin de poder amenorgar el <i>bitrate</i> de la señal al ser tresmitida. D'últimes el sistema encargar d'atopar la manera más eficiente pa poder unviar toos estos datos o información. </p><p>La compresión llevar a cabu en 3 pasos consecutivos: </p> <div class="mw-heading mw-heading3"><h3 id="Compensación_de_movimientu"><span id="Compensaci.C3.B3n_de_movimientu"></span>Compensación de movimientu</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=C%C3%B3dec&veaction=edit&section=3" title="Editar seición: Compensación de movimientu" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=C%C3%B3dec&action=edit&section=3" title="Editar el código fuente de la sección: Compensación de movimientu"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>El sistema encargar d'atopar si dalguna parte de la imaxe repitir n'imáxenes anteriores(frecuencia d'escurrimientu). Si esto ye asina'l sistema va unviar namái la información d'ónde nun se repiten eses partes de les imáxenes , en cuenta de volver unviar tola imaxe entera. </p> <div class="mw-heading mw-heading3"><h3 id="Codificación_de_la_tresformada"><span id="Codificaci.C3.B3n_de_la_tresformada"></span>Codificación de la tresformada</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=C%C3%B3dec&veaction=edit&section=4" title="Editar seición: Codificación de la tresformada" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=C%C3%B3dec&action=edit&section=4" title="Editar el código fuente de la sección: Codificación de la tresformada"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Nesti pasu conviértese la señal dende'l dominiu temporal al dominiu frecuencial, ye dicir esprésase la señal como un conxuntu de componentes frecuenciales. </p> <div class="mw-heading mw-heading3"><h3 id="Codificación_estadística"><span id="Codificaci.C3.B3n_estad.C3.ADstica"></span>Codificación estadística</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=C%C3%B3dec&veaction=edit&section=5" title="Editar seición: Codificación estadística" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=C%C3%B3dec&action=edit&section=5" title="Editar el código fuente de la sección: Codificación estadística"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading2"><h2 id="Ver_tamién"><span id="Ver_tami.C3.A9n"></span>Ver tamién</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=C%C3%B3dec&veaction=edit&section=6" title="Editar seición: Ver tamién" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=C%C3%B3dec&action=edit&section=6" title="Editar el código fuente de la sección: Ver tamién"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/w/index.php?title=C%C3%B3dec_d%27audiu&action=edit&redlink=1" class="new" title="Códec d'audiu (la páxina nun esiste)">Códec d'audiu</a></li> <li><a href="/w/index.php?title=C%C3%B3dec_de_videu&action=edit&redlink=1" class="new" title="Códec de videu (la páxina nun esiste)">Códec de videu</a></li> <li><a href="/w/index.php?title=Procesamientu_de_se%C3%B1ales_d%27audiu&action=edit&redlink=1" class="new" title="Procesamientu de señales d'audiu (la páxina nun esiste)">Procesamientu de señales d'audiu</a></li> <li><a href="/w/index.php?title=Procesamientu_dixital_de_se%C3%B1ales&action=edit&redlink=1" class="new" title="Procesamientu dixital de señales (la 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class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-talk-sticky-header" tabindex="-1" data-event-name="talk-sticky-header"><span class="vector-icon mw-ui-icon-speechBubbles mw-ui-icon-wikimedia-speechBubbles"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-subject-sticky-header" tabindex="-1" data-event-name="subject-sticky-header"><span class="vector-icon mw-ui-icon-article mw-ui-icon-wikimedia-article"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-history-sticky-header" tabindex="-1" data-event-name="history-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-history mw-ui-icon-wikimedia-wikimedia-history"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only mw-watchlink" id="ca-watchstar-sticky-header" tabindex="-1" data-event-name="watch-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-star mw-ui-icon-wikimedia-wikimedia-star"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-ve-edit-sticky-header" tabindex="-1" data-event-name="ve-edit-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-edit mw-ui-icon-wikimedia-wikimedia-edit"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-edit-sticky-header" tabindex="-1" data-event-name="wikitext-edit-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-wikiText mw-ui-icon-wikimedia-wikimedia-wikiText"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-viewsource-sticky-header" tabindex="-1" data-event-name="ve-edit-protected-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-editLock mw-ui-icon-wikimedia-wikimedia-editLock"></span> <span></span> </a> </div> <div class="vector-sticky-header-buttons"> <button class="cdx-button cdx-button--weight-quiet mw-interlanguage-selector" id="p-lang-btn-sticky-header" tabindex="-1" data-event-name="ui.dropdown-p-lang-btn-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-language mw-ui-icon-wikimedia-wikimedia-language"></span> <span>47 llingües</span> </button> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive" id="ca-addsection-sticky-header" tabindex="-1" data-event-name="addsection-sticky-header"><span class="vector-icon mw-ui-icon-speechBubbleAdd-progressive mw-ui-icon-wikimedia-speechBubbleAdd-progressive"></span> <span>Amestar seición</span> </a> </div> <div class="vector-sticky-header-icon-end"> <div class="vector-user-links"> </div> </div> </div> </div> </div> <div class="mw-portlet mw-portlet-dock-bottom emptyPortlet" id="p-dock-bottom"> <ul> </ul> </div> <script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.eqiad.main-7c8f4cbd58-kmx7g","wgBackendResponseTime":186,"wgPageParseReport":{"limitreport":{"cputime":"0.232","walltime":"0.301","ppvisitednodes":{"value":732,"limit":1000000},"postexpandincludesize":{"value":9624,"limit":2097152},"templateargumentsize":{"value":55,"limit":2097152},"expansiondepth":{"value":9,"limit":100},"expensivefunctioncount":{"value":2,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":5162,"limit":5000000},"entityaccesscount":{"value":3,"limit":400},"timingprofile":["100.00% 266.708 1 -total"," 44.31% 118.189 1 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