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Video type parameters
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 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.
Ogg
Main MIME type: application/ogg (RFC 3534)
Filename extension: .ogg
Video Codecs
* Theora: unknown * Dirac: unknown
Audio Codecs
* Vorbis: unknown
Matroska
Main MIME type: video/x-matroska
Filename extension: .mkv
Video Codecs
* Theora: unknown * Dirac: unknown
Audio Codecs
* Vorbis: unknown
MP4
Main MIME type: video/mp4 (RFC 4337)
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
Audio Codecs
* Low-Complexity AAC: mp4a.40.2