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vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目次</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">非表示</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">ページ先頭</div> </a> </li> <li id="toc-概要" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#概要"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>概要</span> </div> </a> <ul id="toc-概要-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-機能" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#機能"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>機能</span> </div> </a> <button aria-controls="toc-機能-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>機能サブセクションを切り替えます</span> </button> <ul id="toc-機能-sublist" class="vector-toc-list"> <li id="toc-ストリーム送信" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#ストリーム送信"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>ストリーム送信</span> </div> </a> <ul id="toc-ストリーム送信-sublist" class="vector-toc-list"> <li id="toc-順序制御" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#順序制御"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.1</span> <span>順序制御</span> </div> </a> <ul id="toc-順序制御-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-パケットヘッダー" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#パケットヘッダー"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>パケットヘッダー</span> </div> </a> <button aria-controls="toc-パケットヘッダー-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>パケットヘッダーサブセクションを切り替えます</span> </button> <ul id="toc-パケットヘッダー-sublist" class="vector-toc-list"> <li id="toc-順序番号" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#順序番号"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>順序番号</span> </div> </a> <ul id="toc-順序番号-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-SSRC識別子" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#SSRC識別子"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>SSRC識別子</span> </div> </a> <ul id="toc-SSRC識別子-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-仕様" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#仕様"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>仕様</span> </div> </a> <button aria-controls="toc-仕様-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>仕様サブセクションを切り替えます</span> </button> <ul id="toc-仕様-sublist" class="vector-toc-list"> <li id="toc-下層プロトコル" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#下層プロトコル"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>下層プロトコル</span> </div> </a> <ul id="toc-下層プロトコル-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-規格書" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#規格書"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>規格書</span> </div> </a> <ul id="toc-規格書-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-出典・脚注" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#出典・脚注"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>出典・脚注</span> </div> </a> <ul id="toc-出典・脚注-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-関連項目" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#関連項目"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>関連項目</span> </div> </a> <ul id="toc-関連項目-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-外部リンク" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#外部リンク"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>外部リンク</span> </div> </a> <ul id="toc-外部リンク-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="目次" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="目次" > <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="目次の表示・非表示を切り替え" > <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">目次の表示・非表示を切り替え</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">Real-time Transport Protocol</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="特定の記事の別の言語版に移動します。利用可能な言語36件" > <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-36" 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">36の言語版</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D8%B1%D9%88%D8%AA%D9%88%D9%83%D9%88%D9%84_%D8%A7%D9%84%D9%86%D9%82%D9%84_%D9%81%D9%8A_%D8%A7%D9%84%D9%88%D9%82%D8%AA_%D8%A7%D9%84%D8%AD%D9%82%D9%8A%D9%82%D9%8A" title="アラビア語: بروتوكول النقل في الوقت الحقيقي" lang="ar" hreflang="ar" data-title="بروتوكول النقل في الوقت الحقيقي" data-language-autonym="العربية" data-language-local-name="アラビア語" 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/RTP" title="ブルガリア語: RTP" lang="bg" hreflang="bg" data-title="RTP" data-language-autonym="Български" data-language-local-name="ブルガリア語" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Real_Time_Protocol" title="カタロニア語: Real Time Protocol" lang="ca" hreflang="ca" data-title="Real Time Protocol" data-language-autonym="Català" data-language-local-name="カタロニア語" 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/Real-time_Transport_Protocol" title="チェコ語: Real-time Transport Protocol" lang="cs" hreflang="cs" data-title="Real-time Transport Protocol" data-language-autonym="Čeština" data-language-local-name="チェコ語" 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/Real-time_Transport_Protocol" title="デンマーク語: Real-time Transport Protocol" lang="da" hreflang="da" data-title="Real-time Transport Protocol" data-language-autonym="Dansk" data-language-local-name="デンマーク語" 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/Real-Time_Transport_Protocol" title="ドイツ語: Real-Time Transport Protocol" lang="de" hreflang="de" data-title="Real-Time Transport Protocol" data-language-autonym="Deutsch" data-language-local-name="ドイツ語" 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/Real-time_Transport_Protocol" title="英語: Real-time Transport Protocol" lang="en" hreflang="en" data-title="Real-time Transport Protocol" data-language-autonym="English" data-language-local-name="英語" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Protocolo_de_transporte_en_tiempo_real" title="スペイン語: Protocolo de transporte en tiempo real" lang="es" hreflang="es" data-title="Protocolo de transporte en tiempo real" data-language-autonym="Español" data-language-local-name="スペイン語" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Real-time_Transport_Protocol" title="バスク語: Real-time Transport Protocol" lang="eu" hreflang="eu" data-title="Real-time Transport Protocol" data-language-autonym="Euskara" data-language-local-name="バスク語" 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/%D8%A2%D8%B1%D8%AA%DB%8C%E2%80%8C%D9%BE%DB%8C" title="ペルシア語: آرتی‌پی" lang="fa" hreflang="fa" data-title="آرتی‌پی" data-language-autonym="فارسی" data-language-local-name="ペルシア語" 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/RTP" title="フィンランド語: RTP" lang="fi" hreflang="fi" data-title="RTP" data-language-autonym="Suomi" data-language-local-name="フィンランド語" 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/Real-time_Transport_Protocol" title="フランス語: Real-time Transport Protocol" lang="fr" hreflang="fr" data-title="Real-time Transport Protocol" data-language-autonym="Français" data-language-local-name="フランス語" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/Real-time_Transport_Protocol" title="ヘブライ語: Real-time Transport Protocol" lang="he" hreflang="he" data-title="Real-time Transport Protocol" data-language-autonym="עברית" data-language-local-name="ヘブライ語" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Real-time_Transport_Protocol" title="ハンガリー語: Real-time Transport Protocol" lang="hu" hreflang="hu" data-title="Real-time Transport Protocol" data-language-autonym="Magyar" data-language-local-name="ハンガリー語" 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/Protokol_Transpor_Waktu_Nyata" title="インドネシア語: Protokol Transpor Waktu Nyata" lang="id" hreflang="id" data-title="Protokol Transpor Waktu Nyata" data-language-autonym="Bahasa Indonesia" data-language-local-name="インドネシア語" 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/Real-time_Transport_Protocol" title="イタリア語: Real-time Transport Protocol" lang="it" hreflang="it" data-title="Real-time Transport Protocol" data-language-autonym="Italiano" data-language-local-name="イタリア語" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%8B%A4%EC%8B%9C%EA%B0%84_%EC%A0%84%EC%86%A1_%ED%94%84%EB%A1%9C%ED%86%A0%EC%BD%9C" title="韓国語: 실시간 전송 프로토콜" lang="ko" hreflang="ko" data-title="실시간 전송 프로토콜" data-language-autonym="한국어" data-language-local-name="韓国語" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Re%C4%81l%C4%81_laika_transportprotokols" title="ラトビア語: Reālā laika transportprotokols" lang="lv" hreflang="lv" data-title="Reālā laika transportprotokols" data-language-autonym="Latviešu" data-language-local-name="ラトビア語" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/Real-time_Transport_Protocol" title="マケドニア語: Real-time Transport Protocol" lang="mk" hreflang="mk" data-title="Real-time Transport Protocol" data-language-autonym="Македонски" data-language-local-name="マケドニア語" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/RTP_%D0%BF%D1%80%D0%BE%D1%82%D0%BE%D0%BA%D0%BE%D0%BB" title="モンゴル語: RTP протокол" lang="mn" hreflang="mn" data-title="RTP протокол" data-language-autonym="Монгол" data-language-local-name="モンゴル語" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Protokol_Pengangkut_Masa_Sebenar" title="マレー語: Protokol Pengangkut Masa Sebenar" lang="ms" hreflang="ms" data-title="Protokol Pengangkut Masa Sebenar" data-language-autonym="Bahasa Melayu" data-language-local-name="マレー語" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Realtime_Transport_Protocol" title="オランダ語: Realtime Transport Protocol" lang="nl" hreflang="nl" data-title="Realtime Transport Protocol" data-language-autonym="Nederlands" data-language-local-name="オランダ語" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Real-time_Transport_Protocol" title="ポーランド語: Real-time Transport Protocol" lang="pl" hreflang="pl" data-title="Real-time Transport Protocol" data-language-autonym="Polski" data-language-local-name="ポーランド語" 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/RTP" title="ピエモンテ語: RTP" lang="pms" hreflang="pms" data-title="RTP" data-language-autonym="Piemontèis" data-language-local-name="ピエモンテ語" 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/Real-time_Transport_Protocol" title="ポルトガル語: Real-time Transport Protocol" lang="pt" hreflang="pt" data-title="Real-time Transport Protocol" data-language-autonym="Português" data-language-local-name="ポルトガル語" 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/RTP" title="ルーマニア語: RTP" lang="ro" hreflang="ro" data-title="RTP" data-language-autonym="Română" data-language-local-name="ルーマニア語" 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/Real-time_Transport_Protocol" title="ロシア語: Real-time Transport Protocol" lang="ru" hreflang="ru" data-title="Real-time Transport Protocol" data-language-autonym="Русский" data-language-local-name="ロシア語" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Real-time_Transport_Protocol" title="シンプル英語: Real-time Transport Protocol" lang="en-simple" hreflang="en-simple" data-title="Real-time Transport Protocol" data-language-autonym="Simple English" data-language-local-name="シンプル英語" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Protokol_komunik%C3%A1cie_v_re%C3%A1lnom_%C4%8Dase" title="スロバキア語: Protokol komunikácie v reálnom čase" lang="sk" hreflang="sk" data-title="Protokol komunikácie v reálnom čase" data-language-autonym="Slovenčina" data-language-local-name="スロバキア語" 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/RTP" title="セルビア語: RTP" lang="sr" hreflang="sr" data-title="RTP" data-language-autonym="Српски / srpski" data-language-local-name="セルビア語" 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/Real-time_Transport_Protocol" title="スウェーデン語: Real-time Transport Protocol" lang="sv" hreflang="sv" data-title="Real-time Transport Protocol" data-language-autonym="Svenska" data-language-local-name="スウェーデン語" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Ger%C3%A7ek_Zamanl%C4%B1_%C4%B0letim_Protokol%C3%BC" title="トルコ語: Gerçek Zamanlı İletim Protokolü" lang="tr" hreflang="tr" data-title="Gerçek Zamanlı İletim Protokolü" data-language-autonym="Türkçe" data-language-local-name="トルコ語" 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/RTP" title="ウクライナ語: RTP" lang="uk" hreflang="uk" data-title="RTP" data-language-autonym="Українська" data-language-local-name="ウクライナ語" 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/Real-time_Transport_Protocol" title="ベトナム語: Real-time Transport Protocol" lang="vi" hreflang="vi" data-title="Real-time Transport Protocol" data-language-autonym="Tiếng Việt" data-language-local-name="ベトナム語" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/Real-time_Transport_Protocol" title="ヨルバ語: Real-time Transport Protocol" lang="yo" hreflang="yo" data-title="Real-time Transport Protocol" data-language-autonym="Yorùbá" 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vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">ツール</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">サイドバーに移動</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">非表示</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="その他の操作" > <div class="vector-menu-heading"> 操作 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Real-time_Transport_Protocol"><span>閲覧</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit" title="このページのソースコードを編集する [e]" accesskey="e"><span>編集</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Real-time_Transport_Protocol&action=history"><span>履歴を表示</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> 全般 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E3%83%AA%E3%83%B3%E3%82%AF%E5%85%83/Real-time_Transport_Protocol" title="ここにリンクしている全ウィキページの一覧 [j]" accesskey="j"><span>リンク元</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/%E7%89%B9%E5%88%A5:%E9%96%A2%E9%80%A3%E3%83%9A%E3%83%BC%E3%82%B8%E3%81%AE%E6%9B%B4%E6%96%B0%E7%8A%B6%E6%B3%81/Real-time_Transport_Protocol" rel="nofollow" title="このページからリンクしているページの最近の更新 [k]" accesskey="k"><span>関連ページの更新状況</span></a></li><li id="t-upload" class="mw-list-item"><a href="//ja.wikipedia.org/wiki/Wikipedia:ファイルのアップロード" title="ファイルをアップロードする [u]" accesskey="u"><span>ファイルをアップロード</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Real-time_Transport_Protocol&oldid=102280270" title="このページのこの版への固定リンク"><span>この版への固定リンク</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Real-time_Transport_Protocol&action=info" title="このページについての詳細情報"><span>ページ情報</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=%E7%89%B9%E5%88%A5:%E3%81%93%E3%81%AE%E3%83%9A%E3%83%BC%E3%82%B8%E3%82%92%E5%BC%95%E7%94%A8&page=Real-time_Transport_Protocol&id=102280270&wpFormIdentifier=titleform" 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href="/w/index.php?title=%E7%89%B9%E5%88%A5:DownloadAsPdf&page=Real-time_Transport_Protocol&action=show-download-screen"><span>PDF 形式でダウンロード</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Real-time_Transport_Protocol&printable=yes" title="このページの印刷用ページ [p]" accesskey="p"><span>印刷用バージョン</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> 他のプロジェクト </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Real-time_Transport_Protocol" hreflang="en"><span>コモンズ</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q321213" title="関連付けられたデータリポジトリ項目へのリンク [g]" accesskey="g"><span>ウィキデータ項目</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="ページツール"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="表示"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">表示</div> <button class="vector-pinnable-header-toggle-button 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.ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%;font-size:90%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}html.client-js body.skin-minerva .mw-parser-output .mbox-text-span{margin-left:23px!important}@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-複数の問題 plainlinks metadata ambox ambox-content" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/OOjs_UI_icon_alert-warning.svg/38px-OOjs_UI_icon_alert-warning.svg.png" decoding="async" width="38" height="38" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/OOjs_UI_icon_alert-warning.svg/57px-OOjs_UI_icon_alert-warning.svg.png 1.5x, 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title="2021-03">2021年3月</span>）</small><br /><small><span class="plainlinks">出典検索<a href="/wiki/Template:Find_sources_mainspace" title="Template:Find sources mainspace"><sup>?</sup></a>: <a rel="nofollow" class="external text" href="//www.google.co.jp/search?hl=ja&as_eq=wikipedia&q=%22Real-time+Transport+Protocol%22&num=50">"Real-time Transport Protocol"</a> – <a rel="nofollow" class="external text" href="//www.google.co.jp/search?hl=ja&q=%22Real-time+Transport+Protocol%22&tbm=nws">ニュース</a> <b>·</b> <a rel="nofollow" class="external text" href="//www.google.co.jp/search?hl=ja&tbs=bks:1&q=%22Real-time+Transport+Protocol%22">書籍</a> <b>·</b> <a rel="nofollow" class="external text" href="//scholar.google.co.jp/scholar?num=100&hl=ja&q=%22Real-time+Transport+Protocol%22">スカラー</a> <b>·</b> <a rel="nofollow" class="external text" href="https://ci.nii.ac.jp/opensearch/search?lang=ja&q=%22Real-time+Transport+Protocol%22&range=2&count=200&sortorder=1&type=0">CiNii</a> <b>·</b> <a rel="nofollow" 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.sidebar{width:100%!important;clear:both;float:none!important;margin-left:0!important;margin-right:0!important}}body.skin--responsive .mw-parser-output .sidebar a>img{max-width:none!important}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-night .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle a{color:var(--color-progressive)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-list-title,html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle{background:transparent!important}html.skin-theme-clientpref-os .mw-parser-output .sidebar:not(.notheme) .sidebar-title-with-pretitle a{color:var(--color-progressive)!important}}@media print{body.ns-0 .mw-parser-output .sidebar{display:none!important}}</style><table class="sidebar nomobile nowraplinks" style="width:20em; font-size:90%;"><tbody><tr><th class="sidebar-title" style="background-color:#adb;"><a href="/wiki/%E3%82%A4%E3%83%B3%E3%82%BF%E3%83%BC%E3%83%8D%E3%83%83%E3%83%88%E3%83%BB%E3%83%97%E3%83%AD%E3%83%88%E3%82%B3%E3%83%AB%E3%83%BB%E3%82%B9%E3%82%A4%E3%83%BC%E3%83%88" title="インターネット・プロトコル・スイート">TCP/IP群</a></th></tr><tr><th class="sidebar-heading" style="background-color:#cfc;"> <a href="/wiki/%E3%82%A2%E3%83%97%E3%83%AA%E3%82%B1%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3%E5%B1%A4" title="アプリケーション層">アプリケーション層</a></th></tr><tr><td class="sidebar-content hlist"> <ul><li><a href="/wiki/Border_Gateway_Protocol" title="Border Gateway Protocol">BGP</a></li> <li><a href="/wiki/Dynamic_Host_Configuration_Protocol" title="Dynamic Host Configuration Protocol">DHCP</a></li> <li><a href="/wiki/Domain_Name_System" title="Domain Name System">DNS</a></li> <li><a href="/wiki/File_Transfer_Protocol" title="File Transfer Protocol">FTP</a></li> <li><a href="/wiki/Hypertext_Transfer_Protocol" title="Hypertext Transfer Protocol">HTTP</a></li> <li><a href="/wiki/Internet_Message_Access_Protocol" title="Internet Message Access Protocol">IMAP</a></li> <li><a href="/wiki/Internet_Relay_Chat" title="Internet Relay Chat">IRC</a></li> <li><a href="/wiki/Lightweight_Directory_Access_Protocol" title="Lightweight Directory Access Protocol">LDAP</a></li> <li><a href="/wiki/MGCP" title="MGCP">MGCP</a></li> <li><a href="/wiki/MQTT" title="MQTT">MQTT</a></li> <li><a href="/wiki/Network_News_Transfer_Protocol" title="Network News Transfer Protocol">NNTP</a></li> <li><a href="/wiki/Network_Time_Protocol" title="Network Time Protocol">NTP</a></li> <li><a href="/wiki/Simple_Network_Time_Protocol" title="Simple Network Time Protocol">SNTP</a></li> <li><a href="/wiki/Time_Protocol" title="Time Protocol">TIME</a></li> <li><a href="/wiki/Post_Office_Protocol" title="Post Office Protocol">POP</a></li> <li><a href="/wiki/Routing_Information_Protocol" title="Routing Information Protocol">RIP</a></li> <li><a href="/wiki/Open_Shortest_Path_First" title="Open Shortest Path First">OSPF</a></li> <li><a href="/wiki/Open_Network_Computing_Remote_Procedure_Call" title="Open Network Computing Remote Procedure Call">ONC RPC</a></li> <li><a class="mw-selflink selflink">RTP</a></li> <li><a href="/wiki/Session_Initiation_Protocol" title="Session Initiation Protocol">SIP</a></li> <li><a href="/wiki/Simple_Mail_Transfer_Protocol" title="Simple Mail Transfer Protocol">SMTP</a></li> <li><a href="/wiki/Simple_Network_Management_Protocol" title="Simple Network Management Protocol">SNMP</a></li> <li><a href="/wiki/Secure_Shell" title="Secure Shell">SSH</a></li> <li><a href="/wiki/Telnet" title="Telnet">Telnet</a></li> <li><a href="/wiki/Trivial_File_Transfer_Protocol" title="Trivial File Transfer Protocol">TFTP</a></li> <li><a href="/wiki/Transport_Layer_Security" title="Transport Layer Security">TLS/SSL</a></li> <li><a href="/wiki/Extensible_Messaging_and_Presence_Protocol" title="Extensible Messaging and Presence Protocol">XMPP</a></li></ul> <a href="/wiki/Category:%E3%82%A2%E3%83%97%E3%83%AA%E3%82%B1%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3%E5%B1%A4%E3%83%97%E3%83%AD%E3%83%88%E3%82%B3%E3%83%AB" title="Category:アプリケーション層プロトコル">カテゴリ</a></td> </tr><tr><th class="sidebar-heading" style="background-color:#cfc;"> <a href="/wiki/%E3%83%88%E3%83%A9%E3%83%B3%E3%82%B9%E3%83%9D%E3%83%BC%E3%83%88%E5%B1%A4" title="トランスポート層">トランスポート層</a></th></tr><tr><td class="sidebar-content hlist"> <ul><li><a href="/wiki/Transmission_Control_Protocol" title="Transmission Control Protocol">TCP</a></li> <li><a href="/wiki/User_Datagram_Protocol" title="User Datagram Protocol">UDP</a></li> <li><a href="/wiki/Datagram_Congestion_Control_Protocol" title="Datagram Congestion Control Protocol">DCCP</a></li> <li><a href="/wiki/Stream_Control_Transmission_Protocol" title="Stream Control Transmission Protocol">SCTP</a></li> <li><a href="/wiki/Resource_Reservation_Protocol" title="Resource Reservation Protocol">RSVP</a></li> <li><a href="/wiki/QUIC" title="QUIC">QUIC</a></li></ul> <a href="/wiki/Category:%E3%83%88%E3%83%A9%E3%83%B3%E3%82%B9%E3%83%9D%E3%83%BC%E3%83%88%E5%B1%A4%E3%83%97%E3%83%AD%E3%83%88%E3%82%B3%E3%83%AB" title="Category:トランスポート層プロトコル">カテゴリ</a></td> </tr><tr><th class="sidebar-heading" style="background-color:#cfc;"> <a href="/wiki/%E3%82%A4%E3%83%B3%E3%82%BF%E3%83%BC%E3%83%8D%E3%83%83%E3%83%88%E5%B1%A4" title="インターネット層">インターネット層</a></th></tr><tr><td class="sidebar-content hlist"> <ul><li><a href="/wiki/Internet_Protocol" title="Internet Protocol">IP</a> <ul><li><a href="/wiki/IPv4" title="IPv4">IPv4</a></li> <li><a href="/wiki/IPv6" title="IPv6">IPv6</a></li></ul></li> <li><a href="/wiki/Internet_Control_Message_Protocol" title="Internet Control Message Protocol">ICMP</a></li> <li><a href="/wiki/Internet_Control_Message_Protocol_for_IPv6" title="Internet Control Message Protocol for IPv6">ICMPv6</a></li> <li><a href="/wiki/%E8%BF%91%E9%9A%A3%E6%8E%A2%E7%B4%A2%E3%83%97%E3%83%AD%E3%83%88%E3%82%B3%E3%83%AB" title="近隣探索プロトコル">NDP</a></li> <li><a href="/wiki/Internet_Group_Management_Protocol" title="Internet Group Management Protocol">IGMP</a></li> <li><a href="/wiki/IPsec" title="IPsec">IPsec</a></li></ul> <a href="/wiki/Category:%E3%82%A4%E3%83%B3%E3%82%BF%E3%83%BC%E3%83%8D%E3%83%83%E3%83%88%E5%B1%A4%E3%83%97%E3%83%AD%E3%83%88%E3%82%B3%E3%83%AB" title="Category:インターネット層プロトコル">カテゴリ</a></td> </tr><tr><th class="sidebar-heading" style="background-color:#cfc;"> <a href="/wiki/%E3%83%AA%E3%83%B3%E3%82%AF%E5%B1%A4" title="リンク層">リンク層</a></th></tr><tr><td class="sidebar-content hlist"> <ul><li><a href="/wiki/Address_Resolution_Protocol" title="Address Resolution Protocol">ARP</a></li> <li><a href="/wiki/IEEE_802.1aq" title="IEEE 802.1aq">SPB</a></li> <li><a href="/wiki/%E3%83%88%E3%83%B3%E3%83%8D%E3%83%AA%E3%83%B3%E3%82%B0" title="トンネリング">トンネリング</a> <ul><li><a href="/wiki/Layer_2_Tunneling_Protocol" title="Layer 2 Tunneling Protocol">L2TP</a></li></ul></li> <li><a href="/wiki/Point-to-Point_Protocol" title="Point-to-Point Protocol">PPP</a></li> <li><a href="/wiki/%E5%AA%92%E4%BD%93%E3%82%A2%E3%82%AF%E3%82%BB%E3%82%B9%E5%88%B6%E5%BE%A1" title="媒体アクセス制御">MAC</a> <ul><li><a href="/wiki/%E3%82%A4%E3%83%BC%E3%82%B5%E3%83%8D%E3%83%83%E3%83%88" title="イーサネット">イーサネット</a></li> <li><a href="/wiki/IEEE_802.11" title="IEEE 802.11">IEEE 802.11</a></li> <li><a href="/wiki/%E3%83%87%E3%82%B8%E3%82%BF%E3%83%AB%E5%8A%A0%E5%85%A5%E8%80%85%E7%B7%9A" title="デジタル加入者線">DSL</a></li> <li><a href="/wiki/ISDN" title="ISDN">ISDN</a></li></ul></li></ul> <a href="/wiki/Category:%E3%83%AA%E3%83%B3%E3%82%AF%E5%B1%A4%E3%83%97%E3%83%AD%E3%83%88%E3%82%B3%E3%83%AB" title="Category:リンク層プロトコル">カテゴリ</a></td> </tr><tr><td class="sidebar-navbar"><style data-mw-deduplicate="TemplateStyles:r103358373">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline-block;word-break:keep-all}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd:after,.mw-parser-output .hlist li:after{content:" ·\a0 ";font-weight:bold}.mw-parser-output .hlist-pipe dd:after,.mw-parser-output .hlist-pipe 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.navbar{display:inline;font-size:75%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:110%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:110%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}.mw-parser-output .infobox .navbar{font-size:80%}.mw-parser-output .navbox .navbar{display:block;font-size:80%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:IPstack" title="Template:IPstack"><abbr title="参照先のページを表示します。">表</abbr></a></li><li class="nv-talk"><a href="/wiki/Template%E2%80%90%E3%83%8E%E3%83%BC%E3%83%88:IPstack" title="Template‐ノート:IPstack"><abbr title="参照先のノートを表示します。">話</abbr></a></li><li class="nv-edit"><a href="/wiki/%E7%89%B9%E5%88%A5:EditPage/Template:IPstack" title="特別:EditPage/Template:IPstack"><abbr title="参照先のページを編集します。">編</abbr></a></li><li class="nv-hist"><a href="/wiki/%E7%89%B9%E5%88%A5:PageHistory/Template:IPstack" title="特別:PageHistory/Template:IPstack"><abbr title="参照先のページの履歴を表示します。">歴</abbr></a></li></ul></div></td></tr></tbody></table> <table class="infobox vevent" style="width:22em; width:26em;"><caption itemprop="name" class="summary" style="">Real-time Transport Protocol</caption><tbody><tr class="" style="" itemprop=""><td colspan="2" class="" style="text-align:center;" itemprop=""> <a href="/wiki/%E9%80%9A%E4%BF%A1%E3%83%97%E3%83%AD%E3%83%88%E3%82%B3%E3%83%AB" title="通信プロトコル">通信プロトコル</a></td></tr><tr class="" style="" itemprop=""><th scope="row" style="text-align:left; white-space:nowrap; white-space: nowrap; width:25%;">略称</th><td class="" style="" itemprop=""> RTP</td></tr><tr class="" style="" itemprop=""><th scope="row" style="text-align:left; white-space:nowrap; white-space: nowrap; width:25%;">目的</th><td class="" style="" itemprop=""> オーディオとビデオの配信を行う</td></tr><tr class="" style="" itemprop=""><th scope="row" style="text-align:left; white-space:nowrap; white-space: nowrap; width:25%;">開発者</th><td class="" style="" itemprop=""> Audio-Video Transport Working Group of the <a href="/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a></td></tr><tr class="" style="" itemprop=""><th scope="row" style="text-align:left; white-space:nowrap; white-space: nowrap; width:25%;">導入</th><td class="" style="" itemprop=""> <span style="white-space:nowrap;">1996年1月</span><span class="noprint"> (29年前)</span><span style="display:none"> (<span class="bday dtstart published updated">1996-01</span>)</span></td></tr><tr class="" style="" itemprop=""><th scope="row" style="text-align:left; white-space:nowrap; white-space: nowrap; width:25%;">派生元</th><td class="" style="" itemprop=""> <a href="/w/index.php?title=Network_Voice_Protocol&action=edit&redlink=1" class="new" title="Network Voice Protocol (存在しないページ)">Network Voice Protocol</a><sup id="cite_ref-FOOTNOTEPerkins20036_1-0" class="reference"><a href="#cite_note-FOOTNOTEPerkins20036-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr class="" style="" itemprop=""><th scope="row" style="text-align:left; white-space:nowrap; white-space: nowrap; width:25%;"><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a></th><td class="" style="" itemprop=""> <style data-mw-deduplicate="TemplateStyles:r101121245">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation.cs-ja1 q,.mw-parser-output .citation.cs-ja2 q{quotes:"「""」""『""』"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:var(--color-success,#3a3);margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}</style><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc1889">1889</a>, <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>, <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3551">3551</a></td></tr></tbody></table> <p><b>Real-time Transport Protocol</b>（リアルタイムトランスポートプロトコル、<b>RTP</b>）は、<a href="/wiki/%E9%9F%B3%E5%A3%B0" title="音声">音声</a>や<a href="/wiki/%E5%8B%95%E7%94%BB" title="動画">動画</a>などのデータストリームをリアルタイムに配送するためのデータ<a href="/wiki/%E9%80%9A%E4%BF%A1%E3%83%97%E3%83%AD%E3%83%88%E3%82%B3%E3%83%AB" title="通信プロトコル">通信プロトコル</a>である。 </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="概要"><span id=".E6.A6.82.E8.A6.81"></span>概要</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=1" title="節を編集: 概要"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Real_Time_Streaming_Protocol" title="Real Time Streaming Protocol">RTSP</a>や<a href="/wiki/H.323" title="H.323">H.323</a>の<a href="/wiki/%E9%80%9A%E4%BF%A1%E3%83%97%E3%83%AD%E3%83%88%E3%82%B3%E3%83%AB" title="通信プロトコル">通信プロトコル</a>のデータ部分に使用される。ほぼ全ての<a href="/wiki/VoIP" title="VoIP">VoIP</a>関連製品は、RTPを利用して、音声情報を<a href="/wiki/IP%E3%83%8D%E3%83%83%E3%83%88%E3%83%AF%E3%83%BC%E3%82%AF" class="mw-redirect" title="IPネットワーク">IPネットワーク</a>上へ送出している。これは、リアルタイムストリームを運ぶためのプロトコルとして<a href="/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a>および<a href="/wiki/%E5%9B%BD%E9%9A%9B%E9%9B%BB%E6%B0%97%E9%80%9A%E4%BF%A1%E9%80%A3%E5%90%88" title="国際電気通信連合">ITU</a>によって標準化されている。 </p><p>RTPは典型的には<a href="/wiki/User_Datagram_Protocol" title="User Datagram Protocol">UDP</a>上で利用される<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>。<a href="/wiki/Transmission_Control_Protocol" title="Transmission Control Protocol">TCP</a>と違ってUDPのヘッダーには「シーケンス（順序）番号」の項目が存在しないため順序の組み立てができない。しかし、RTP<a href="/wiki/%E3%83%91%E3%82%B1%E3%83%83%E3%83%88" title="パケット">パケット</a>を受信した<a href="/wiki/%E3%83%9B%E3%82%B9%E3%83%88_(%E3%83%8D%E3%83%83%E3%83%88%E3%83%AF%E3%83%BC%E3%82%AF)" title="ホスト (ネットワーク)">ホスト</a>は、RTPパケット内のヘッダーにある情報のうち、時刻情報（タイムスタンプ）から各パケットの時間的な順序関係を把握し、データを再生することができる。（詳細は <a href="#順序制御">#順序制御</a>）。 </p><p>RTPパケットも他のパケットと同様に、ネットワークを経由して転送されていく中で、喪失や、配送の遅れが起こる。しかし、映像や音声のデータ（ストリーミングメディアデータ）は、データの一部が多少欠けていても再生が可能であるため、データの受信側では、喪失や、配送の遅れたパケットは無視し、受信側が期待する時間に到着したパケットだけを利用してデータを再生することができる。 </p><p>RTPは単独で利用されることはなく、RTCP (<a href="/wiki/RTP_Control_Protocol" title="RTP Control Protocol">RTP Control Protocol</a>) のような制御プロトコルと組み合わせて利用される<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>。RTPとRTCPはともに<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>にて標準化されている。 </p> <table class="wikitable"> <caption>表. UDP, RTP/UDP, TCP 比較 </caption> <tbody><tr> <th colspan="2"> </th> <th>UDP </th> <th>RTP/UDP </th> <th>TCP </th></tr> <tr> <td colspan="2">アプリ間通信 </td> <td>✔ </td> <td>✔ </td> <td>✔ </td></tr> <tr> <td colspan="2">パケットトランザクション </td> <td>✔ </td> <td>✔ </td> <td>✔ </td></tr> <tr> <td colspan="2">ストリーム通信 </td> <td>- </td> <td>✔ </td> <td>✔ </td></tr> <tr> <td colspan="2">順序制御 </td> <td> </td> <td> </td> <td> </td></tr> <tr> <td rowspan="2"> </td> <td>到着順序保証 </td> <td>- </td> <td>-<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td> <td>✔ </td></tr> <tr> <td>シーケンス順序復元 </td> <td>- </td> <td>✔<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </td> <td>✔ </td></tr> <tr> <td colspan="2">到達保証 </td> <td>- </td> <td>-<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td> <td>✔ </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="機能"><span id=".E6.A9.9F.E8.83.BD"></span>機能</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=2" title="節を編集: 機能"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>RTPは以下の機能を提供する。 </p> <div class="mw-heading mw-heading3"><h3 id="ストリーム送信"><span id=".E3.82.B9.E3.83.88.E3.83.AA.E3.83.BC.E3.83.A0.E9.80.81.E4.BF.A1"></span>ストリーム送信</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=3" title="節を編集: ストリーム送信"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>パケット通信プロトコルは独立したパケットを送信するため、パケット間の関係性を扱わない。RTP はストリーム機能を提供することで、音声や動画などデータストリームの送信を可能にする。 </p> <div class="mw-heading mw-heading4"><h4 id="順序制御"><span id=".E9.A0.86.E5.BA.8F.E5.88.B6.E5.BE.A1"></span>順序制御</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=4" title="節を編集: 順序制御"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>ネットワークの輻輳や負荷分散、その他ネットワークの予測できない振る舞いにより、<a href="/wiki/%E3%83%91%E3%82%B1%E3%83%83%E3%83%88" title="パケット">パケット</a>は遅延し順序がばらばらに届きうる。パケット集合をストリームとしてデコードするにはパケットの順序を知る必要がある。RTPはストリームシーケンス番号機能を提供することで順序制御を可能にする<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> <div class="mw-heading mw-heading2"><h2 id="パケットヘッダー"><span id=".E3.83.91.E3.82.B1.E3.83.83.E3.83.88.E3.83.98.E3.83.83.E3.83.80.E3.83.BC"></span>パケットヘッダー</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=5" title="節を編集: パケットヘッダー"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable" style="text-align:center"> <caption>RTP packet header </caption> <tbody><tr> <th>Bit offset </th> <th colspan="2">0-1 </th> <th colspan="1">2 </th> <th colspan="1">3 </th> <th colspan="4">4-7 </th> <th colspan="1">8 </th> <th colspan="6">9-15 </th> <th colspan="15">16-31 </th></tr> <tr align="center"> <th>0 </th> <td colspan="2">バージョン </td> <td colspan="1">P </td> <td colspan="1">X </td> <td colspan="4">CC </td> <td colspan="1">M </td> <td colspan="6">PT </td> <td colspan="15">順序番号 </td></tr> <tr align="center"> <th colspan="1">32 </th> <td colspan="32">タイムスタンプ </td></tr> <tr align="center"> <th>64 </th> <td colspan="32">SSRC識別子 </td></tr> <tr align="center"> <th>96 </th> <td colspan="32" bgcolor="#FFBBBB">CSRC識別子<br />... </td></tr> <tr align="center"> <th>96+32×CC </th> <td colspan="16" bgcolor="#FFBBBB">プロファイル固有の拡張ヘッダーID </td> <td colspan="16" bgcolor="#FFBBBB">拡張ヘッダー長 </td></tr> <tr> <th>128+32×CC </th> <td colspan="32" bgcolor="#FFBBBB">拡張ヘッダー<br />... </td></tr></tbody></table> <p>RTPヘッダーは、12バイトが最小サイズである。ヘッダーの後ろのオプションの拡張ヘッダーは存在してもよい。<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="順序番号"><span id=".E9.A0.86.E5.BA.8F.E7.95.AA.E5.8F.B7"></span>順序番号</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=6" title="節を編集: 順序番号"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>順序番号</b>（<a href="/wiki/%E8%8B%B1%E8%AA%9E" title="英語">英</a>: <span lang="en">sequence number</span>）はRTPパケットの送出順序番号である<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>。初期値はランダムである<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>。 </p> <div class="mw-heading mw-heading3"><h3 id="SSRC識別子"><span id="SSRC.E8.AD.98.E5.88.A5.E5.AD.90"></span>SSRC識別子</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=7" title="節を編集: SSRC識別子"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>SSRC識別子</b>（<a href="/wiki/%E8%8B%B1%E8%AA%9E" title="英語">英</a>: <span lang="en">SSRC identifier</span>）はRTPストリームの識別子である。SSRC識別子の実体はRTPセッション内で一意な32bitのランダム値である<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup>。 </p> <div class="mw-heading mw-heading2"><h2 id="仕様"><span id=".E4.BB.95.E6.A7.98"></span>仕様</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=8" title="節を編集: 仕様"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="下層プロトコル"><span id=".E4.B8.8B.E5.B1.A4.E3.83.97.E3.83.AD.E3.83.88.E3.82.B3.E3.83.AB"></span>下層プロトコル</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=9" title="節を編集: 下層プロトコル"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>RTPはトランスポートプロトコル上で利用される。 </p><p>仕様上、下層プロトコルは特定プロトコルに縛られないが<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup>、<a href="/wiki/%E3%83%9D%E3%83%BC%E3%83%88_(%E3%82%B3%E3%83%B3%E3%83%94%E3%83%A5%E3%83%BC%E3%82%BF%E3%83%8D%E3%83%83%E3%83%88%E3%83%AF%E3%83%BC%E3%82%AF)" title="ポート (コンピュータネットワーク)">ポート</a>機能を前提とする<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>。 </p> <div class="mw-heading mw-heading3"><h3 id="規格書"><span id=".E8.A6.8F.E6.A0.BC.E6.9B.B8"></span>規格書</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=10" title="節を編集: 規格書"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a> において RTP に関する規格が策定されている。以下はその一部である： </p> <table class="wikitable"> <caption><b>表. RTP 規格</b> </caption> <tbody><tr> <th><b>規格書名</b> </th> <th><b>規格種別</b> </th> <th><b>発行日</b> </th></tr> <tr> <td><i><a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">RTP: A Transport Protocol for Real-Time Applications</a></i> </td> <td>RFC Internet Standard </td> <td>2003-07 </td></tr> <tr> <td><i><a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc7656">A Taxonomy of Semantics and Mechanisms for Real-Time Transport Protocol (RTP) Sources</a></i> </td> <td>RFC Informational </td> <td>2015-11 </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="出典・脚注"><span id=".E5.87.BA.E5.85.B8.E3.83.BB.E8.84.9A.E6.B3.A8"></span>出典・脚注</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=11" title="節を編集: 出典・脚注"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="noprint" style="float:right; font-size:90%;">[<a href="/wiki/Help:%E8%84%9A%E6%B3%A8/%E8%AA%AD%E8%80%85%E5%90%91%E3%81%91" title="Help:脚注/読者向け"><span title="この欄の操作法">脚注の使い方</span></a>]</div> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-FOOTNOTEPerkins20036-1"><b><a href="#cite_ref-FOOTNOTEPerkins20036_1-0">^</a></b> <span class="reference-text"><a href="#CITEREFPerkins2003">Perkins 2003</a>, p. 6.</span> </li> <li id="cite_note-2"><b><a href="#cite_ref-2">^</a></b> <span class="reference-text">"Applications typically run RTP on top of UDP"<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>より引用。</span> </li> <li id="cite_note-3"><b><a href="#cite_ref-3">^</a></b> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.ieice-hbkb.org/files/03/03gun_04hen_05.pdf">15群(○○○)-8編 - 03gun_04hen_05.pdf</a></span> </li> <li id="cite_note-4"><b><a href="#cite_ref-4">^</a></b> <span class="reference-text">"RTP itself ... does not prevent out-of-order delivery"<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>より引用。</span> </li> <li id="cite_note-5"><b><a href="#cite_ref-5">^</a></b> <span class="reference-text">"The sequence numbers included in RTP allow the receiver to reconstruct the sender's packet sequence"<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>より引用。</span> </li> <li id="cite_note-6"><b><a href="#cite_ref-6">^</a></b> <span class="reference-text">"Note that RTP itself ... does not guarantee delivery"<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>より引用。</span> </li> <li id="cite_note-7"><b><a href="#cite_ref-7">^</a></b> <span class="reference-text">"the real-time transport protocol ... provides end-to-end delivery services ... Those services include ... sequence numbering ... The sequence numbers included in RTP allow the receiver to reconstruct the sender's packet sequence ... All packets from a synchronization source form part of the same timing and sequence number space"<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>より引用。</span> </li> <li id="cite_note-8"><b><a href="#cite_ref-8">^</a></b> <span class="reference-text"><a href="#CITEREFPeterson2007">Peterson 2007</a>, p. 430</span> </li> <li id="cite_note-9"><b><a href="#cite_ref-9">^</a></b> <span class="reference-text">"The sequence number increments by one for each RTP data packet sent"<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>より引用。</span> </li> <li id="cite_note-10"><b><a href="#cite_ref-10">^</a></b> <span class="reference-text">"The initial value of the sequence number SHOULD be random (unpredictable) to make known-plaintext attacks on encryption more difficult"<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>より引用。</span> </li> <li id="cite_note-11"><b><a href="#cite_ref-11">^</a></b> <span class="reference-text">"The SSRC identifier is a randomly chosen value meant to be globally unique within a particular RTP session"<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>より引用。</span> </li> <li id="cite_note-12"><b><a href="#cite_ref-12">^</a></b> <span class="reference-text">"RTP may be used with other suitable underlying network or transport protocols"<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>より引用。</span> </li> <li id="cite_note-13"><b><a href="#cite_ref-13">^</a></b> <span class="reference-text">"RTP depends upon the lower-layer protocol to provide some mechanism such as ports"<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r101121245" /><a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc3550">3550</a>より引用。</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="関連項目"><span id=".E9.96.A2.E9.80.A3.E9.A0.85.E7.9B.AE"></span>関連項目</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=12" title="節を編集: 関連項目"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/RTP_Control_Protocol" title="RTP Control Protocol">RTP Control Protocol</a> (RTCP)</li> <li><a href="/wiki/MGCP" title="MGCP">MGCP</a></li> <li><a href="/wiki/%E9%81%A0%E9%9A%94%E4%BC%9A%E8%AD%B0" title="遠隔会議">遠隔会議</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="外部リンク"><span id=".E5.A4.96.E9.83.A8.E3.83.AA.E3.83.B3.E3.82.AF"></span>外部リンク</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Real-time_Transport_Protocol&action=edit&section=13" title="節を編集: 外部リンク"><span>編集</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><span typeof="mw:File"><span><img alt="" 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