MP4
From Just Solve the File Format Problem
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MPEG-4 Part 14 is an application of [[ISO Base Media File Format|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. | MPEG-4 Part 14 is an application of [[ISO Base Media File Format|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. | ||
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| + | See also [[AVC (file format)]], for the related format defined in MPEG-4 Part 15. | ||
== Sample files == | == Sample files == | ||
Revision as of 13:54, 5 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.
See also AVC (file format), for the related format defined in MPEG-4 Part 15.
