MP4

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|mimetypes={{mimetype|audio/mp4}}, {{mimetype|video/mp4}}
 
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|locfdd={{LoCFDD|fdd000037}}, {{LoCFDD|fdd000155}}
 
|locfdd={{LoCFDD|fdd000037}}, {{LoCFDD|fdd000155}}
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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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Imgur uses an MP4 video format for converting animated [[GIF]]s uploaded by users into its own "[[GIFV]]" format, which is actually an MPR referenced in a video element of an [[HTML]] 5 document, which is served with a .gifv extension from their servers.
  
 
== See also ==
 
== See also ==
 
* [[AVC (file format)]], for the related format defined in MPEG-4 Part 15
 
* [[AVC (file format)]], for the related format defined in MPEG-4 Part 15
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* [[ISO Base Media File Format]]
 
* [[AAC]]
 
* [[AAC]]
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== Specifications ==
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* [http://www.iso.org/iso/catalogue_detail.htm?csnumber=38538 ISO/IEC 14496-14:2003 (MP4 file format)]  (not free to download)
  
 
== Sample files ==
 
== Sample files ==
 
* http://samples.libav.org/MPEG-4/
 
* http://samples.libav.org/MPEG-4/
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== Software ==
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* [[FFmpeg]]
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* [[Konvertor]]
  
 
== Links ==
 
== Links ==
 
* [[Wikipedia:MPEG-4 Part 14|Wikipedia article: MPEG-4 Part 14]]
 
* [[Wikipedia:MPEG-4 Part 14|Wikipedia article: MPEG-4 Part 14]]
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* [http://wiki.multimedia.cx/index.php?title=MP4 MultimediaWiki: MP4]
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* [http://xhelmboyx.tripod.com/formats/mp4-layout.txt mp4-layout.txt]
 
* [http://www.mp4ra.org/ MP4 Registration Authority]
 
* [http://www.mp4ra.org/ MP4 Registration Authority]
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* [http://www.ftyps.com/ Complete List of all known MP4 / QuickTime 'ftyp' designations]
  
 
[[Category:Audio and Music]]
 
[[Category:Audio and Music]]
 
[[Category:MPEG-4]]
 
[[Category:MPEG-4]]
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[[Category:Box file format]]

Revision as of 19:35, 19 January 2021

File Format
Name MP4
Ontology
Extension(s) .mp4, .m4a, .m4p, .m4b, .m4r, .m4v
MIME Type(s) audio/mp4, video/mp4
LoCFDD fdd000037, fdd000155
PRONOM fmt/199
Wikidata ID Q336316

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.

Imgur uses an MP4 video format for converting animated GIFs uploaded by users into its own "GIFV" format, which is actually an MPR referenced in a video element of an HTML 5 document, which is served with a .gifv extension from their servers.

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