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Video type parameters

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The <video> element allows UA capability-based fallback with multiple alternative video resources designated by multiple <source> elements. The UA is expected to pick the alternative it tries to play by comparing the information given in the type attribute against its knowledge about its own playback capabilities. The same information is also exposed to scripts via the canPlayType function.

The main media type designates the container format. In general, it does not say anything about codecs needed to decode the streams packaged in the container. RFC 4281 defines a codecs MIME parameter for indicating which codecs are used within the container. The parameter takes a double-quoted comma-separated list of codec identifiers. For example, the MIME type for MPEG-4 Simple Profile Level 0 video and AMR audio in a 3GPP container (.3gp) is video/3gpp; codecs="mp4v.20.9,samr".

The following list is organized by container, including only types that at least one browser supports.

Ogg

MIME types: application/ogg, audio/ogg, video/ogg[1]

Filename extension: .ogg, .oga, .ogv

This is not the complete set of codecs from RFC 5334. See also http://wiki.xiph.org/index.php/MIMETypesCodecs

Video Codecs

  • Theora: theora
  • Dirac: dirac

Audio Codecs

  • Vorbis: vorbis
  • Speex: speex
  • FLAC: flac
  • Opus: opus[2]


WebM

MIME types: audio/webm, video/webm

Filename extension: .webm

Video Codecs

  • VP8: vp8, vp8.0 (these exact strings, not e.g. vp8. or vp8.00)

Audio Codecs

  • Vorbis: vorbis
  • Opus: opus

MPEG

MIME types: audio/mpeg[3], video/mpeg[4]

Filename extension: .mp1, .mp2, .mp3, .mpg, .mpeg

There are no registered codecs parameters.

MPEG-4

MIME types: audio/mp4, video/mp4[5]

Filename extension: .mp4

Video Codecs

  • H.264 Baseline: avc1.42E0xx, where xx is the AVC level
  • H.264 Main: avc1.4D40xx, where xx is the AVC level
  • H.264 High: avc1.6400xx, where xx is the AVC level
  • MPEG-4 Visual Simple Profile Level 0: mp4v.20.9
  • MPEG-4 Visual Advanced Simple Profile Level 0: mp4v.20.240
  • AV1 8-bit Main Profile Level 3.0: av01.0.04M.08[6]
  • AV1 10-bit Main Profile Level 3.0: av01.0.04M.10[6]

Audio Codecs

  • Low-Complexity AAC: mp4a.40.2
  • High-Efficiency AAC: mp4a.40.5
  • Opus: opus

3GPP

Main MIME type: video/3gpp[7]

Filename extension: .3gp

Video Codecs

  • MPEG-4 Visual Simple Profile Level 0: mp4v.20.9

Audio Codecs

  • Low-Complexity AAC: mp4a.40.2
  • High-Efficiency AAC: mp4a.40.5
  • AMR: samr

WAVE

MIME types: audio/wave, audio/wav, audio/x-wav

Filename extension: .wav

Audio Codecs

RFC 2361 lists parameters to be used on the form audio/vnd.wave;codec=x. These are also used for the codecs parameter.

Browser Support

The table below lists the results of canPlayType(type) for different browsers. It does not necessary relate to what the browsers actually can play.


MIME Chromium 84 Firefox 79 Safari 13
application/ogg "maybe" "maybe" ""
application/ogg; codecs=bogus "" "" ""
application/mp4 "" "" "maybe"
application/mp4; codecs=bogus "" "" "maybe"
application/octet-stream "" "" ""
application/octet-stream; codecs=bogus "" "" ""
audio/3gpp "" "" "maybe"
audio/3gpp2 "" "" "maybe"
audio/aac "probably" "maybe" "maybe"
audio/x-aac "" "maybe" "maybe"
audio/aiff "" "" "maybe"
audio/x-aiff "" "" "maybe"
audio/ac3 "" "" ""
audio/x-ac3 "" "" ""
audio/basic "" "" "maybe"
audio/flac "probably" "maybe" "maybe"
audio/x-flac "" "maybe" ""
audio/mid "" "" ""
audio/midi "" "" ""
audio/x-midi "" "" ""
audio/mpeg "probably" "maybe" "maybe"
audio/x-mpeg "" "" "maybe"
audio/mpegurl "" "" "maybe"
audio/x-mpegurl "" "" "maybe"
audio/mp4 "maybe" "maybe" "maybe"
audio/mp4; codecs=bogus "" "" "maybe"
audio/ogg "maybe" "maybe" ""
audio/ogg; codecs=bogus "" "" ""
audio/wav "maybe" "maybe" "maybe"
audio/wav; codecs=0 "" "" "maybe"
audio/wav; codecs=1 "probably" "probably" "maybe"
audio/wav; codecs=2 "" "" "maybe"
audio/wave "" "maybe" "maybe"
audio/wave; codecs=0 "" "" "maybe"
audio/wave; codecs=1 "" "probably" "maybe"
audio/wave; codecs=2 "" "" "maybe"
audio/x-wav "maybe" "maybe" "maybe"
audio/x-wav; codecs=0 "" "" "maybe"
audio/x-wav; codecs=1 "probably" "probably" "maybe"
audio/x-wav; codecs=2 "" "" "maybe"
audio/x-pn-wav "" "maybe" ""
audio/x-pn-wav; codecs=0 "" "" ""
audio/x-pn-wav; codecs=1 "" "probably" ""
audio/x-pn-wav; codecs=2 "" "" ""
video/3gpp "maybe" "" "maybe"
video/3gpp2 "" "" "maybe"
video/avi "" "" "maybe"
video/mpeg "" "" "maybe"
video/x-mpeg "" "" "maybe"
video/mp4 "maybe" "maybe" "maybe"
video/mp4; codecs=bogus "" "" "maybe"
video/msvideo "" "" ""
video/x-msvideo "" "" ""
video/quicktime "" "maybe" "maybe"
video/ogg "maybe" "maybe" ""
video/ogg; codecs=bogus "" "" ""
video/mp4; codecs="avc1.42E01E, mp4a.40.2" "probably" "probably" "probably"
video/mp4; codecs="avc1.58A01E, mp4a.40.2" "probably" "probably" "probably"
video/mp4; codecs="avc1.4D401E, mp4a.40.2" "probably" "probably" "probably"
video/mp4; codecs="avc1.64001E, mp4a.40.2" "probably" "probably" "probably"
video/mp4; codecs="mp4v.20.8, mp4a.40.2" "" "" "probably"
video/mp4; codecs="mp4v.20.240, mp4a.40.2" "" "" "probably"
video/mp4; codecs="avc1.64001E, mp4a.40.2" "probably" "probably" "probably"
video/mp4; codecs="mp4v.20.8, mp4a.40.2" "" "" "probably"
video/mp4; codecs=hev1 "" "" "maybe"
video/mp4; codecs=hev1.1.6.L93.B0 "" "" "maybe"
video/mp4; codecs=hvc1 "" "" "probably"
video/mp4; codecs=hvc1.1.6.L93.B0 "" "" "probably"
video/mp4; codecs=av01 "" "probably" "maybe"
video/mp4; codecs=av01.0.04M.08 "probably" "probably" "maybe"
video/mp4; codecs="av01.0.04M.08, mp4a.40.2" "probably" "probably" "maybe"
video/mp4; codecs="av01.0.04M.08, opus" "probably" "probably" "maybe"
audio/mp4; codecs=mp4a.40.2 "probably" "probably" "probably"
audio/mp4; codecs=mp4a.40.02 "probably" "probably" "probably"
audio/mp4; codecs=mp4a.40.5 "probably" "probably" "probably"
audio/mp4; codecs=mp4a.40.05 "probably" "probably" "probably"
audio/mp4; codecs=mp4a.40.29 "probably" "probably" "probably"
audio/mp4; codecs=mp4a.40.42 "" "" "maybe"
audio/mp4; codecs=opus "probably" "probably" "maybe"
video/3gpp; codecs="mp4v.20.8, samr" "" "" "probably"
video/ogg; codecs="theora, vorbis" "probably" "probably" ""
video/ogg; codecs="theora, speex" "" "" ""
audio/ogg; codecs=vorbis "probably" "probably" ""
audio/ogg; codecs=speex "" "" ""
audio/ogg; codecs=flac "probably" "probably" ""
audio/ogg; codecs=opus "probably" "probably" ""
video/ogg; codecs="dirac, vorbis" "" "" ""
video/x-matroska; codecs="theora, vorbis" "" "" ""
audio/webm "maybe" "maybe" ""
audio/webm; codecs=vorbis "probably" "probably" ""
video/webm "maybe" "maybe" ""
video/webm; codecs=vorbis "probably" "probably" ""
video/webm; codecs=vp8 "probably" "probably" ""
video/webm; codecs=vp8.0 "probably" "probably" ""
video/webm; codecs="vp8, vorbis" "probably" "probably" ""
video/webm; codecs=vp9 "probably" "probably" ""
video/webm; codecs=vp9.0 "probably" "probably" ""
video/webm; codecs=vp09 "" "" ""
video/webm; codecs=vp09.00.10.08 "probably" "probably" ""

MIME types used in the wild (in type="")

MIME type defaults in Web servers

References

  1. ↑ RFC 5334 Ogg Media Types
  2. ↑ RFC 7845 Ogg Encapsulation for the Opus Audio Codec § Content Type
  3. ↑ RFC 3003 The audio/mpeg Media Type
  4. ↑ RFC 2046 Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types
  5. ↑ RFC 4337 MIME Type Registration for MPEG-4
  6. ↑ 6.0 6.1 AV1 Codec ISO Media File Format Binding § Codecs Parameter String
  7. ↑ RFC 3839 MIME Type Registrations for 3rd Generation Partnership Project (3GPP) Multimedia files
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