{
  "title":"HEVC/H.265 video format",
  "description":"The High Efficiency Video Coding (HEVC) compression standard is a video compression format intended to succeed H.264. It is hard for browsers to universally support HEVC because it is [complex and expensive to license](https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding#Patent_licensing). HEVC competes with [AV1](/av1) which has similar compression quality and provides a free license.",
  "spec":"https://www.itu.int/rec/T-REC-H.265",
  "status":"other",
  "links":[
    {
      "url":"https://bugzilla.mozilla.org/show_bug.cgi?format=default&id=1332136",
      "title":"Firefox support bug (WONTFIX)"
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    {
      "url":"https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding",
      "title":"Wikipedia article"
    },
    {
      "url":"https://bugs.chromium.org/p/chromium/issues/detail?id=684382",
      "title":"Chrome support bug (WontFix)"
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    {
      "url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1842838",
      "title":"Firefox support via OS API bug"
    }
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  "notes":"",
  "notes_by_num":{
    "1":"Supported only for devices with [hardware support](https://answers.microsoft.com/en-us/insider/forum/insider_apps-insider_wmp/windows-10-hevc-playback-yes-or-no/3c1ab780-a6b2-4b77-ac0f-9faeefd4680d)",
    "2":"Reported to work in certain Android devices with hardware support",
    "3":"Supported only on macOS High Sierra or later",
    "4":"Supported for all devices on macOS (>= Big Sur 11.0) and Android (>= 5.0) if Edge >= 107, for devices with [hardware support](https://techcommunity.microsoft.com/t5/discussions/updated-dev-channel-build-77-0-211-3-is-live/m-p/745801#M6548) on Windows (>= Windows 10 1709) when [HEVC video extensions from the Microsoft Store](https://apps.microsoft.com/store/detail/hevc-video-extension/9NMZLZ57R3T7) is installed",
    "5":"Supported for all devices on macOS (>= Big Sur 11.0) and Android (>= 5.0), for devices with [hardware support](https://github.com/StaZhu/enable-chromium-hevc-hardware-decoding) on Windows (>= Windows 8), and for devices with hardware support powered by VAAPI on Linux and ChromeOS",
    "6":"Supported for devices with hardware support (the range is the same as Edge) on Windows in Nightly only. 10-bit or higher colors are not supported.",
    "7":"Supported for devices with hardware support (the range is the same as Edge) on Windows only. Enabled by default in Nightly and can be enabled via the `media.wmf.hevc.enabled` pref in `about:config`. 10-bit or higher colors are not supported.",
    "8":"Supported for devices with hardware support, software fallback in some cases. See [details here on MDN](https://developer.mozilla.org/en-US/docs/Web/Media/Guides/Formats/Video_codecs#hevc_h.265)."
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