MP4
From Just Solve the File Format Problem
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|extensions={{ext|mp4}}, {{ext|m4a}}, {{ext|m4p}}, {{ext|m4b}}, {{ext|m4r}}, {{ext|m4v}} | |extensions={{ext|mp4}}, {{ext|m4a}}, {{ext|m4p}}, {{ext|m4b}}, {{ext|m4r}}, {{ext|m4v}} | ||
|mimetypes={{mimetype|audio/mp4}}, {{mimetype|video/mp4}} | |mimetypes={{mimetype|audio/mp4}}, {{mimetype|video/mp4}} | ||
| + | |locfdd={{LoCFDD|fdd000037}}, {{LoCFDD|fdd000155}} | ||
| + | |pronom={{PRONOM|fmt/199}} | ||
}} | }} | ||
'''MP4''' usually refers to the multimedia file format defined in Part 14 (and to a lesser extent Part 1) of the MPEG-4 standard. | '''MP4''' usually refers to the multimedia file format defined in Part 14 (and to a lesser extent Part 1) of the MPEG-4 standard. | ||
Revision as of 01:04, 4 April 2014
MP4 usually refers to the multimedia file format defined in Part 14 (and to a lesser extent Part 1) of the MPEG-4 standard.
"MP4" could also mean the entire MPEG-4 standard, or some other subset of MPEG-4. This article only covers the Part 14 file format.
MPEG-4 Part 14 is an application of Part 12. The recommended extension for it is ".mp4", though ".m4a" is often used for audio-only files. It is standardized by ISO/IEC 14496-14.
