MPEG-1

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This standard is old enough that any patents that may have encumbered it in the past are now expired. US patents [http://www.google.com/patents/US4472747 4,472,747] and [http://www.google.com/patents/US5214678 5,214,678] are such possibly-related but expired patents. Since MP3 audio uses things from MPEG-2, there are still some unexpired patents relevant to that.
 
This standard is old enough that any patents that may have encumbered it in the past are now expired. US patents [http://www.google.com/patents/US4472747 4,472,747] and [http://www.google.com/patents/US5214678 5,214,678] are such possibly-related but expired patents. Since MP3 audio uses things from MPEG-2, there are still some unexpired patents relevant to that.
  
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== Programming code, libraries, and tools ==
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== Formats ==
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There are separate articles for these formats:
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* [[MP3]]
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* [[MPEG Audio Layer I]] (MP1)
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* [[MPEG Audio Layer II]] (MP2)
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* [[MPEG Elementary Stream]]
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* [[MPEG Program Stream]]
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* [[Packetized Elementary Stream]]
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== Software ==
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* [[VLC]]
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* [[FFmpeg]]
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* [[Konvertor]]
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== Sample files ==
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* {{DexvertSamples|video/mpeg1}}
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=== Programming code, libraries, and tools ===
 
* [http://standards.iso.org/ittf/licence.html ISO code to implement MPEG-1]
 
* [http://standards.iso.org/ittf/licence.html ISO code to implement MPEG-1]
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* [https://github.com/phoboslab/pl_mpeg PL_MPEG]
  
 
== Links ==
 
== Links ==
 
* [[Wikipedia:MPEG-1|Wikipedia article]]
 
* [[Wikipedia:MPEG-1|Wikipedia article]]
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* [http://mpeg.chiariglione.org/ MPEG official website]
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* [https://mpeg.chiariglione.org/ MPEG official website]
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* [http://mpeg.chiariglione.org/standards/mpeg-1 Official page on MPEG-1]
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* [https://mpeg.chiariglione.org/standards/mpeg-1 Official page on MPEG-1]
 
* [https://groups.google.com/forum/#!topic/pronom/pIgV6iK2uss Forthcoming changes to MPEG-1 and MPEG-2 variants in next PRONOM/DROID signature release]
 
* [https://groups.google.com/forum/#!topic/pronom/pIgV6iK2uss Forthcoming changes to MPEG-1 and MPEG-2 variants in next PRONOM/DROID signature release]
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* [http://dvd.sourceforge.net/dvdinfo/mpeghdrs.html MPEG Headers Quick Reference] (in DVD-Video Information)

Latest revision as of 04:07, 28 December 2023

File Format
Name MPEG-1
Ontology
Extension(s) .mpg, .mpeg, .mp1, .mp2, .mp3, .m1v, .m1a, .m2a, .mpa, .mpv
MIME Type(s) audio/mpeg, video/mpeg
LoCFDD fdd000035, fdd000012
PRONOM x-fmt/385, fmt/649
Released 1992

MPEG-1 is a video and audio compressed stream standard which is part of the MPEG group of standards. It can be used in a variety of containers, resulting in various file types including the popular MP3 audio format (which is based on Layer 3 of MPEG-1, and also Layer 3 of MPEG-2).

The later MPEG-2 standard is an extension of MPEG-1.

The ISO/IEC-11172 group of standards, published between 1993 and 1998, give the details of the specifications.

This standard is old enough that any patents that may have encumbered it in the past are now expired. US patents 4,472,747 and 5,214,678 are such possibly-related but expired patents. Since MP3 audio uses things from MPEG-2, there are still some unexpired patents relevant to that.

Contents

[edit] Formats

There are separate articles for these formats:

[edit] Software

[edit] Sample files

[edit] Programming code, libraries, and tools

[edit] Links

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