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}} | ||
| + | |wikidata={{wikidata|Q336316}} | ||
| + | |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. | ||
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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. | ||
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| + | == See also == | ||
| + | * [[AVC (file format)]], for the related format defined in MPEG-4 Part 15 | ||
| + | * [[ISO Base Media File Format]] | ||
| + | * [[AAC]] | ||
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| + | == Specifications == | ||
| + | * [http://www.iso.org/iso/catalogue_detail.htm?csnumber=38538 ISO/IEC 14496-14:2003 (MP4 file format)] (not free to download) | ||
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| + | == Software == | ||
| + | * [[FFmpeg]] | ||
| + | * [[Konvertor]] | ||
== Sample files == | == Sample files == | ||
* http://samples.libav.org/MPEG-4/ | * http://samples.libav.org/MPEG-4/ | ||
| + | * {{DexvertSamples|video/mp4}} | ||
== Links == | == Links == | ||
* [[Wikipedia:MPEG-4 Part 14|Wikipedia article: MPEG-4 Part 14]] | * [[Wikipedia:MPEG-4 Part 14|Wikipedia article: MPEG-4 Part 14]] | ||
| + | * [http://wiki.multimedia.cx/index.php?title=MP4 MultimediaWiki: MP4] | ||
| + | * [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] | ||
| + | * [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]] | ||
| + | [[Category:Box file format]] | ||
Latest revision as of 15:26, 28 December 2023
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.
Contents |
[edit] See also
- AVC (file format), for the related format defined in MPEG-4 Part 15
- ISO Base Media File Format
- AAC
[edit] Specifications
- ISO/IEC 14496-14:2003 (MP4 file format) (not free to download)
