MPEG-4 Part 14
MPEG-4 Part 14 or MP4, formally ISO\/IEC 14496-14:2003, is a multimedia container format standard specified as a part of MPEG-4. It is most commonly used to store digital video and digital audio streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images. Like most modern container formats, MPEG-4 Part 14 allows streaming over the Internet. A separate hint track is used to include streaming information in the file. The only official filename extension for MPEG-4 Part 14 files is .mp4.
Some devices advertised as "MP4 Players" are simply MP3 Players that also play AMV video or some other video format, and do not necessarily play the MPEG-4 part 14 format.
History of MP4
MPEG-4 Part 14 is an instance of more general ISO\/IEC 14496-12:2004 (MPEG-4 Part 12: ISO base media file format) which is directly based upon QuickTime File Format. MPEG-4 Part 14 is essentially identical to the QuickTime file format, but formally specifies support for Initial Object Descriptors (IOD) and other MPEG features. MPEG-4 Part 14 revises and completely replaces Clause 13 of ISO\/IEC 14496-1 (MPEG-4 Part 1: Systems), in which the file format for MPEG-4 content was previously specified.
The MPEG-4 file format specification was created on the basis of the QuickTime format specification published in 2001. The MPEG-4 file format, version 1 was published in 2001 as ISO\/IEC 14496-1:2001, which is a revision of the MPEG-4 Part 1: Systems specification published in 1999 (ISO\/IEC 14496-1:1999). In 2003, the first version of MP4 file format was revised and replaced by MPEG-4 Part 14: MP4 file format (ISO\/IEC 14496-14:2003), commonly named as MPEG-4 file format version 2. The MP4 file format was generalized into the ISO Base Media File format ISO\/IEC 14496-12:2004, which defines a general structure for time-based media files. It in turn is used as the basis for other file formats in the family (for example MP4, 3GP, Motion JPEG 2000).

Audio and video glossary. 2014.

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  • .mp4 — mp4,   Erweiterung für komprimierte Musikdateien (Audioformate). Es gibt derzeit zwei unterschiedliche Standards, welche die Erweiterung ».mp4« benutzen:   die maßgeblich vom Fraunhofer Institut für Integrierte Schaltungen in Erlangen (IIS)… …   Universal-Lexikon

  • MP4 — 8 [MP4] [ˌem piː ˈfɔː(r)] [ˌem piː ˈfɔːr] noun countable, uncountable a method of reducing the size of a computer file containing sound and images; a file that is reduced in size in this way …   Useful english dictionary

  • Mp4 — Vorlage:Infobox Dateiformat/Wartung/magic fehltVorlage:Infobox Dateiformat/Wartung/website fehlt MP4 (MPEG 4 Part 14) Dateiendung .mp4 MIME Type video/mp4 Entwickelt von …   Deutsch Wikipedia

  • MP4 — Vorlage:Infobox Dateiformat/Wartung/MagischeZahl fehltVorlage:Infobox Dateiformat/Wartung/Website fehlt MP4 (MPEG 4 Part 14) Dateiendung: .mp4 MIME Type: video/mp4 …   Deutsch Wikipedia

  • MP4 — MPEG 4 MPEG 4 (ISO/CEI 14496), introduit en 1998, est une norme de codage d’objets audiovisuels spécifiée par le Moving Picture Experts Group. MPEG 4 est d’abord conçu pour gérer le contenu de scènes comprenant un ou plusieurs objets audio vidéo …   Wikipédia en Français

  • MP4 — {{#}}{{LM M47143}}{{〓}} {{[}}MP4{{]}} {{■}}(ing.){{□}} {{◆}}(pl. MP4){{◇}} {{《}}▍ s.m.{{》}} {{<}}1{{>}} {{♂}}En informática,{{♀}} formato que permite comprimir archivos de sonido y de vídeo. {{<}}2{{>}} Aparato portátil con una pequeña pantalla… …   Diccionario de uso del español actual con sinónimos y antónimos

  • MP4 — Es la extensión agregada al nombre de los archivos creados bajo el standard MPEG 4. La extensión .m4a ha sido popularizada por Apple quien inicio el uso de la extencion .m4a en su software iTunes y en sus populares reproductores de audio iPod… …   Enciclopedia Universal

  • MP4 — ● ext. ►VIDEO►EXT Extension du nom d un fichier contenant de la vidéo au format MPEG 4 …   Dictionnaire d'informatique francophone

  • MP4 (disambiguation) — MP4 can refer to:* MPEG 4 Part 14 file format * MP4 player, a marketing name for certain portable media players, mainly used in the People s Republic of China. * The McLaren team s Formula One cars, from the MP4 to the current MP4 23 * Møller… …   Wikipedia

  • MP4 (band) — MP4 is a rock band made up of United Kingdom members of Parliament.It was founded as MP3 in 2001 by Peter Wishart (SNP, Perth and North Perthshire) on keyboards, Ian Cawsey (Labour, Brigg and Goole) on bass guitar and vocals, and Greg Knight… …   Wikipedia

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