MPEG-4

Short description: Video encoding standard

MPEG-4 is a group of international standards for the compression of digital audio and visual data, multimedia systems, and file storage formats. It was originally introduced in late 1998 as a group of audio and video coding formats and related technology agreed upon by the ISO/IEC Moving Picture Experts Group (MPEG) (ISO/IEC JTC 1/SC29/WG11) under the formal standard ISO/IEC 14496 – Coding of audio-visual objects. Uses of MPEG-4 include compression of audiovisual data for Internet video and CD distribution, voice (telephone, videophone) and broadcast television applications. The MPEG-4 standard was developed by a group led by Touradj Ebrahimi (later the JPEG president) and Fernando Pereira.[1]

## Contents

* 1 Background
* 2 Overview
* 2.1 Profiles and Levels
* 3 MPEG-4 Parts
* 4 Licensing
* 5 See also
* 6 References
* 7 External links

## Background

MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2 and other related standards, adding new features such as (extended) VRML support for 3D rendering, object-oriented composite files (including audio, video and VRML objects), support for externally specified Digital Rights Management and various types of interactivity. AAC (Advanced Audio Coding) was standardized as an adjunct to MPEG-2 (as Part 1) before MPEG-4 was issued.

MPEG-4 is still an evolving standard and is divided into a number of parts. Companies promoting MPEG-4 compatibility do not always clearly state which "part" level compatibility they are referring to. The key parts to be aware of are MPEG-4 Part 2 (including Advanced Simple Profile, used by codecs such as DivX, Xvid, Nero Digital and 3ivx and by QuickTime 6) and MPEG-4 part 10 (MPEG-4 AVC/H.264 or Advanced Video Coding, used by the x264 encoder, Nero Digital AVC, QuickTime 7, and high-definition video media like Blu-ray Disc).

Most of the features included in MPEG-4 are left to individual developers to decide whether or not to implement. This means that there are probably no complete implementations of the entire MPEG-4 set of standards. To deal with this, the standard includes the concept of "profiles" and "levels", allowing a specific set of capabilities to be defined in a manner appropriate for a subset of applications.

Initially, MPEG-4 was aimed primarily at low-bit-rate video communications; however, its scope as a multimedia coding standard was later expanded. MPEG-4 is efficient across a variety of bit rates ranging from a few kilobits per second to tens of megabits per second. MPEG-4 provides the following functions:

* Improved coding efficiency over MPEG-2[2]
* Ability to encode mixed media data (video, audio, speech)
* Error resilience to enable robust transmission
* Ability to interact with the audio-visual scene generated at the receiver

## Overview

MPEG-4 provides a series of technologies for developers, for various service-providers and for end users:

* MPEG-4 enables different software and hardware developers to create multimedia objects possessing better abilities of adaptability and flexibility to improve the quality of such services and technologies as digital television, animation graphics, the World Wide Web and their extensions.
* Data network providers can use MPEG-4 for data transparency. With the help of standard procedures, MPEG-4 data can be interpreted and transformed into other signal types compatible with any available network.
* The MPEG-4 format provides end users with a wide range of interaction with various animated objects.
* Standardized Digital Rights Management signaling, otherwise known in the MPEG community as Intellectual Property Management and Protection (IPMP).

The MPEG-4 format can perform various functions, among which might be the following:

* Multiplexes and synchronizes data, associated with media objects, in such a way that they can be efficiently transported further via network channels.
* Interaction with the audio-visual scene, which is formed on the side of the receiver.

### Profiles and Levels

MPEG-4 provides a large and rich set of tools for encoding.[vague] Subsets of the MPEG-4 tool sets have been provided for use in specific applications.[vague] These subsets, called 'Profiles', limit the size of the tool set a decoder is required to implement.[3] In order to restrict computational complexity, one or more 'Levels' are set for each Profile.[3] A Profile and Level combination allows:[3]

* A codec builder to implement only the subset of the standard needed, while maintaining interworking with other MPEG-4 devices that implement the same combination.[3]
* Checking whether MPEG-4 devices comply with the standard, referred to as conformance testing.[3]

## MPEG-4 Parts

MPEG-4 consists of several standards—termed "parts"—including the following (each part covers a certain aspect of the whole specification):

MPEG-4 parts[4][5] Part  | Number  | First public release date (first edition)  | Latest public release date (last edition)  | Latest amendment  | Title  | Description

|
|
|
|
|
|

Part 1 | ISO/IEC 14496-1 | 1999  | 2010[6] | 2014[7] | Systems  | Describes synchronization and multiplexing of video and audio. For example, the MPEG-4 file format version 1 (obsoleted by version 2 defined in MPEG-4 Part 14). The functionality of a transport protocol stack for transmitting and/or storing content complying with ISO/IEC 14496 is not within the scope of 14496-1 and only the interface to this layer is considered (DMIF). Information about transport of MPEG-4 content is defined e.g. in MPEG-2 Transport Stream, RTP Audio Video Profiles and others.[8][9][10][11][12]
Part 2 | ISO/IEC 14496-2 | 1999  | 2004[13] | 2009  | Visual | A compression format for visual data (video, still textures, synthetic images, etc.). Contains many profiles, including the Advanced Simple Profile (ASP), and the Simple Profile (SP).
Part 3 | ISO/IEC 14496-3 | 1999  | 2009[14] | 2017[15] | Audio | A set of compression formats for perceptual coding of audio signals, including some variations of Advanced Audio Coding (AAC) as well as other audio/speech coding formats and tools (such as Audio Lossless Coding (ALS), Scalable Lossless Coding (SLS), Structured Audio, Text-To-Speech Interface (TTSI), HVXC, CELP and others)
Part 4  | ISO/IEC 14496-4 | 2000  | 2004[16] | 2016  | Conformance testing  | Describes procedures for testing conformance to other parts of the standard.
Part 5  | ISO/IEC 14496-5 | 2000  | 2001[17] | 2017  | Reference software  | Provides reference software for demonstrating and clarifying the other parts of the standard.
Part 6 | ISO/IEC 14496-6 | 1999  | 2000[18] |  | Delivery Multimedia Integration Framework (DMIF)  |
Part 7  | ISO/IEC TR 14496-7 | 2002  | 2004[19] |  | Optimized reference software for coding of audio-visual objects  | Provides examples of how to make improved implementations (e.g., in relation to Part 5).
Part 8  | ISO/IEC 14496-8 | 2004  | 2004[20] |  | Carriage of ISO/IEC 14496 contents over IP networks  | Specifies a method to carry MPEG-4 content on IP networks. It also includes guidelines to design RTP payload formats, usage rules of SDP to transport ISO/IEC 14496-1-related information, MIME type definitions, analysis on RTP security and multicasting.
Part 9  | ISO/IEC TR 14496-9 | 2004  | 2009[21] |  | Reference hardware description  | Provides hardware designs for demonstrating how to implement the other parts of the standard.
Part 10  | ISO/IEC 14496-10 | 2003  | 2014[22] | 2016[23] | Advanced Video Coding (AVC)  | A compression format for video signals which is technically identical to the ITU-T H.264 standard.
Part 11 | ISO/IEC 14496-11 | 2005  | 2015[24] |  | Scene description and application engine | Can be used for rich, interactive content with multiple profiles, including 2D and 3D versions. MPEG-4 Part 11 revised MPEG-4 Part 1 – ISO/IEC 14496-1:2001 and two amendments to MPEG-4 Part 1. It describes a system level description of an application engine (delivery, lifecycle, format and behaviour of downloadable Java byte code applications) and the Binary Format for Scene (BIFS) and the Extensible MPEG-4 Textual (XMT) format – a textual representation of the MPEG-4 multimedia content using XML, etc.[24] (It is also known as BIFS, XMT, MPEG-J.[25] MPEG-J was defined in MPEG-4 Part 21)
Part 12  | ISO/IEC 14496-12 | 2004  | 2015[26] | 2017[27] | ISO base media file format | A file format for storing time-based media content. It is a general format forming the basis for a number of other more specific file formats (e.g. 3GP, Motion JPEG 2000, MPEG-4 Part 14). It is technically identical to ISO/IEC 15444-12 (JPEG 2000 image coding system – Part 12).
Part 13  | ISO/IEC 14496-13 | 2004  | 2004[28] |  | Intellectual Property Management and Protection (IPMP) Extensions
Part 14 | ISO/IEC 14496-14 | 2003  | 2003[29] | 2010[30] | MP4 file format | It is also known as "MPEG-4 file format version 2". The designated container file format for MPEG-4 content, which is based on Part 12. It revises and completely replaces Clause 13 of ISO/IEC 14496-1 (MPEG-4 Part 1: Systems), in which the MPEG-4 file format was previously specified.
Part 15  | ISO/IEC 14496-15 | 2004  | 2022[31] | 2023[32] | Part 15: Carriage of network abstraction layer (NAL) unit structured video in the ISO base media file format  | For storage of Part 10 video. File format is based on Part 12, but also allows storage in other file formats.
Part 16  | ISO/IEC 14496-16 | 2004  | 2011[33] | 2016[34] | Animation Framework eXtension (AFX)  | It specifies MPEG-4 Animation Framework eXtension (AFX) model for representing 3D Graphics content. MPEG-4 is extended with higher-level synthetic objects for specifying geometry, texture, animation and dedicated compression algorithms.
Part 17 | ISO/IEC 14496-17 | 2006  | 2006[35] |  | Streaming text format | Timed Text subtitle format
Part 18  | ISO/IEC 14496-18 | 2004  | 2004[36] | 2014  | Font compression and streaming  | For Open Font Format defined in Part 22.
Part 19  | ISO/IEC 14496-19 | 2004  | 2004[37] |  | Synthesized texture stream  | Synthesized texture streams are used for creation of very low bitrate synthetic video clips.
Part 20 | ISO/IEC 14496-20 | 2006  | 2008[38] | 2010  | Lightweight Application Scene Representation (LASeR) and Simple Aggregation Format (SAF) | LASeR requirements (compression efficiency, code and memory footprint) are fulfilled by building upon the existing the Scalable Vector Graphics (SVG) format defined by the World Wide Web Consortium.[39]
Part 21  | ISO/IEC 14496-21 | 2006  | 2006[40] |  | MPEG-J Graphics Framework eXtensions (GFX)  | Describes a lightweight programmatic environment for advanced interactive multimedia applications – a framework that marries a subset of the MPEG standard Java application environment (MPEG-J) with a Java API.[25][40][41][42] (at "FCD" stage in July 2005, FDIS January 2006, published as ISO standard on 2006-11-22).
Part 22  | ISO/IEC 14496-22 | 2007  | 2015[43] | 2017  | Open Font Format  | OFFS is based on the OpenType version 1.4 font format specification, and is technically equivalent to that specification.[44][45] Reached "CD" stage in July 2005, published as ISO standard in 2007
Part 23  | ISO/IEC 14496-23 | 2008  | 2008[46] |  | Symbolic Music Representation (SMR)  | Reached "FCD" stage in October 2006, published as ISO standard in 2008-01-28
Part 24  | ISO/IEC TR 14496-24 | 2008  | 2008[47] |  | Audio and systems interaction  | Describes the desired joint behavior of MPEG-4 File Format and MPEG-4 Audio.
Part 25  | ISO/IEC 14496-25 | 2009  | 2011[48] |  | 3D Graphics Compression Model  | Defines a model for connecting 3D Graphics Compression tools defined in MPEG-4 standards to graphics primitives defined in any other standard or specification.
Part 26  | ISO/IEC 14496-26 | 2010  | 2010[49] | 2016  | Audio Conformance  |
Part 27  | ISO/IEC 14496-27 | 2009  | 2009[50] | 2015[51] | 3D Graphics conformance  | 3D Graphics Conformance summarizes the requirements, cross references them to characteristics, and defines how conformance with them can be tested. Guidelines are given on constructing tests to verify decoder conformance.
Part 28 | ISO/IEC 14496-28 | 2012  | 2012[52] |  | Composite font representation  |
Part 29  | ISO/IEC 14496-29 | 2014  | 2015  |  | Web video coding  | Text of Part 29 is derived from Part 10 - ISO/IEC 14496-10. Web video coding is a technology that is compatible with the Constrained Baseline Profile of ISO/IEC 14496-10 (the subset that is specified in Annex A for Constrained Baseline is a normative specification, while all remaining parts are informative).
Part 30  | ISO/IEC 14496-30 | 2014  | 2014  |  | Timed text and other visual overlays in ISO base media file format  | It describes the carriage of some forms of timed text and subtitle streams in files based on ISO/IEC 14496-12 - W3C Timed Text Markup Language 1.0, W3C WebVTT (Web Video Text Tracks). The documentation of these forms does not preclude other definition of carriage of timed text or subtitles; see, for example, 3GPP Timed Text (3GPP TS 26.245).
Part 31  | ISO/IEC 14496-31 | Under development (2018-05)  |  |  | Video Coding for Browsers  | Video Coding for Browsers (VCB) - a video compression technology that is intended for use within World Wide Web browser
Part 32  | ISO/IEC CD 14496-32 | Under development  |  |  | Conformance and reference software  |
Part 33 | ISO/IEC FDIS 14496-33 | Under development  |  |  | Internet video coding |

Profiles are also defined within the individual "parts", so an implementation of a part is ordinarily not an implementation of an entire part.

MPEG-1, MPEG-2, MPEG-7 and MPEG-21 are other suites of MPEG standards.

## Licensing

Further information: MPEG-4 Part 2 § Patent holders

MPEG-4 contains patented technologies, the use of which requires licensing in countries that acknowledge software algorithm patents. Over two dozen companies claim to have patents covering MPEG-4. MPEG LA[53] licenses patents required for MPEG-4 Part 2 Visual from a wide range of companies (audio is licensed separately) and lists all of its licensors and licensees on the site. New licenses for MPEG-4 System patents are under development[54] and no new licenses are being offered while holders of its old MPEG-4 Systems license are still covered under the terms of that license for the patents listed (MPEG LA – Patent List).

The majority of patents used for the MPEG-4 Visual format are held by three Japanese companies: Mitsubishi Electric (255 patents), Hitachi (206 patents), and Panasonic (200 patents).

## See also

* MPEG
* MPEG-4 Structured Audio
* MPEG-4 SLS
* ISO/IEC JTC 1/SC 29

## References

1. ↑ Ebrahimi, Touradj; Pereira, Fernando (2002). The MPEG-4 Book. Prentice Hall Professional. ISBN 9780130616210. https://books.google.com/books?id=ftRvA08WcM4C.
2. ↑ Wiegand, T; Sullican, G J; Bjontegaard, G; Luthra, A (2003). "Overview of the H.264/AVC video coding standard". IEEE Transactions on Circuits and Systems for Video Technology 13 (7): 560–576. doi:10.1109/TCSVT.2003.815165.
3. ↑ 3.0 3.1 3.2 3.3 3.4 MacKie, David; Singer, David; Meer, Jan Van der; Swaminathan, Viswanathan; Gentric, Philippe (December 2003), RFC 3640, IETF, p. 31, http://tools.ietf.org/html/rfc3640#page-31 .
4. ↑ MPEG. "MPEG standards – Full list of standards developed or under development". Chiariglione. http://mpeg.chiariglione.org/standards.htm.
5. ↑ ISO/IEC JTC 1/SC 29 (2009-11-09). "Programme of Work – MPEG-4 (Coding of audio-visual objects)". http://kikaku.itscj.ipsj.or.jp/sc29/29w42911.htm#MPEG-4.
6. ↑ "ISO/IEC 14496-1:2010 – Information technology — Coding of audio-visual objects — Part 1: Systems". https://www.iso.org/standard/55688.html.
7. ↑ ISO. "ISO/IEC 14496-1:2010/Amd 2:2014 – Support for raw audio-visual data". https://www.iso.org/standard/62114.html.
8. ↑ ISO/IEC (2004-11-15), ISO/IEC 14496-1:2004 – Third edition 2004-11-15 – Information technology — Coding of audio-visual objects — Part 1: Systems, http://webstore.iec.ch/preview/info_isoiec14496-1{ed3.0}en.pdf, retrieved 2010-04-11
9. ↑ WG11 (MPEG) (March 2002). "Overview of the MPEG-4 Standard". http://mpeg.chiariglione.org/standards/mpeg-4/mpeg-4.htm.
10. ↑ WG11 (1997-11-21) (MS Word .doc), Text for CD 14496-1 Systems, http://www.ece.cmu.edu/~ece796/documents/MPEG4_Systems_CD_w1901.doc, retrieved 2010-04-11
11. ↑ "MPEG-4 Systems Elementary Stream Management (ESM)". July 2001. http://mpeg.chiariglione.org/faq/mp4-sys/sys-faq-esm.htm.
12. ↑ "MPEG Systems (1-2-4-7) FAQ, Version 17.0". July 2001. http://mpeg.chiariglione.org/faq/mp4-sys/mp4-sys.htm.
13. ↑ "ISO/IEC 14496-2:2004 – Information technology — Coding of audio-visual objects — Part 2: Visual". ISO. https://www.iso.org/standard/39259.html.
14. ↑ "ISO/IEC 14496-3:2009 – Information technology — Coding of audio-visual objects — Part 3: Audio". ISO. https://www.iso.org/standard/53943.html.
15. ↑ "ISO/IEC 14496-3:2009/Amd 6:2017, Profiles, levels and downmixing method for 22.2 channel programs". ISO. 2017. https://www.iso.org/standard/70436.html.
16. ↑ "ISO/IEC 14496-4:2004 – Information technology — Coding of audio-visual objects — Part 4: Conformance testing". ISO. https://www.iso.org/standard/36084.html.
17. ↑ "ISO/IEC 14496-5:2001 – Information technology — Coding of audio-visual objects — Part 5: Reference software". ISO. https://www.iso.org/standard/36086.html.
18. ↑ "ISO/IEC 14496-6:2000 – Information technology — Coding of audio-visual objects — Part 6: Delivery Multimedia Integration Framework (DMIF)". ISO. https://www.iso.org/standard/34418.html.
19. ↑ "ISO/IEC TR 14496-7:2004 – Information technology — Coding of audio-visual objects — Part 7: Optimized reference software for coding of audio-visual objects". ISO. https://www.iso.org/standard/40728.html.
20. ↑ "ISO/IEC 14496-8:2004 – Information technology — Coding of audio-visual objects — Part 8: Carriage of ISO/IEC 14496 contents over IP networks". ISO. https://www.iso.org/standard/36066.html.
21. ↑ "ISO/IEC TR 14496-9:2009 – Information technology — Coding of audio-visual objects — Part 9: Reference hardware description". ISO. https://www.iso.org/standard/52073.html.
22. ↑ "ISO/IEC 14496-10:2014 – Information technology — Coding of audio-visual objects — Part 10: Advanced Video Coding". ISO. https://www.iso.org/standard/66069.html.
23. ↑ "ISO/IEC 14496-10:2014/Amd 3:2016 – Constrained Additional supplemental enhancement information". ISO. https://www.iso.org/standard/69728.html.
24. ↑ 24.0 24.1 "ISO/IEC 14496-11:2015 – Information technology — Coding of audio-visual objects — Part 11: Scene description and application engine". ISO. https://www.iso.org/standard/63548.html.
25. ↑ 25.0 25.1 "MPEG-J White Paper". July 2005. http://mpeg.chiariglione.org/technologies/mpeg-4/mp04-j/.
26. ↑ "ISO/IEC 14496-12:2015 – Information technology — Coding of audio-visual objects — Part 12: ISO base media file format". ISO. https://www.iso.org/standard/68960.html.
27. ↑ ISO. "ISO/IEC 14496-12:2015/Amd 1:2017 – DRC Extensions". https://www.iso.org/standard/70430.html.
28. ↑ "ISO/IEC 14496-13:2004 – Information technology — Coding of audio-visual objects — Part 13: Intellectual Property Management and Protection (IPMP) extensions". ISO. https://www.iso.org/standard/39110.html.
29. ↑ ISO. "ISO/IEC 14496-14:2003 – Information technology — Coding of audio-visual objects — Part 14: MP4 file format". https://www.iso.org/standard/38538.html.
30. ↑ "ISO/IEC 14496-14:2003/Amd 1:2010 – Handling of MPEG-4 audio enhancement layers". ISO. https://www.iso.org/standard/53749.html.
31. ↑ "ISO/IEC 14496-15:2022 – Information technology — Coding of audio-visual objects — Part 15: Carriage of network abstraction layer (NAL) unit structured video in the ISO base media file format". ISO. https://www.iso.org/standard/83336.html.
32. ↑ "ISO/IEC 14496-15:2022/Amd 1:2023 - Information technology — Coding of audio-visual objects — Part 15: Carriage of network abstraction layer (NAL) unit structured video in the ISO base media file format — Amendment 1: Support for LCEVC" (in en). ISO. https://www.iso.org/standard/83337.html.
33. ↑ "ISO/IEC 14496-16:2011 – Information technology — Coding of audio-visual objects — Part 16: Animation Framework eXtension (AFX)". ISO. https://www.iso.org/standard/57367.html.
34. ↑ "ISO/IEC 14496-16:2011/Amd 3:2016 – Printing material and 3D graphics coding for browsers". https://www.iso.org/standard/63521.html.
35. ↑ "ISO/IEC 14496-17:2006 – Information technology — Coding of audio-visual objects — Part 17: Streaming text format". ISO. https://www.iso.org/standard/39478.html.
36. ↑ "ISO/IEC 14496-18:2004 – Information technology — Coding of audio-visual objects — Part 18: Font compression and streaming". ISO. https://www.iso.org/standard/40151.html.
37. ↑ "ISO/IEC 14496-19:2004 – Information technology – Coding of audio-visual objects — Part 19: Synthesized texture stream". ISO. https://www.iso.org/standard/40152.html.
38. ↑ "ISO/IEC 14496-20:2008 – Information technology — Coding of audio-visual objects — Part 20: Lightweight Application Scene Representation (LASeR) and Simple Aggregation Format (SAF)". ISO. https://www.iso.org/standard/52454.html.
39. ↑ "MPEG-4 LASeR white paper". July 2005. http://mpeg.chiariglione.org/technologies/mpeg-4/mp04-lsr/.
40. ↑ 40.0 40.1 "ISO/IEC 14496-21:2006 – Information technology — Coding of audio-visual objects — Part 21: MPEG-J Graphics Framework eXtensions (GFX)". ISO. https://www.iso.org/standard/41733.html.
41. ↑ "MPEG-4 Systems MPEG-J". July 2001. http://mpeg.chiariglione.org/faq/mp4-sys/sys-faq-mpegj.htm.
42. ↑ "MPEG-J GFX white paper". July 2005. http://mpeg.chiariglione.org/technologies/mpeg-4/mpj-gfx/.
43. ↑ "ISO/IEC 14496-22:2009 – Information technology — Coding of audio-visual objects — Part 22: Open Font Format". ISO. https://www.iso.org/standard/66391.html.
44. ↑ ISO/IEC JTC 1/SC 29/WG 11 (July 2008). "ISO/IEC 14496-22 "Open Font Format"". Chiariglione. http://mpeg.chiariglione.org/technologies/mpeg-4/mp04-off/.
45. ↑ "ISO/IEC 14496-22 Information technology — Coding of audio-visual objects — Part 22: Open Font Format" (Zip). 2007-03-15. http://standards.iso.org/ittf/PubliclyAvailableStandards/c043466_ISO_IEC_14496-22_2007(E).zip.
46. ↑ "ISO/IEC 14496-23:2008 – Information technology — Coding of audio-visual objects — Part 23: Symbolic Music Representation". ISO. https://www.iso.org/standard/45531.html.
47. ↑ "ISO/IEC TR 14496-24:2008 – Information technology — Coding of audio-visual objects — Part 24: Audio and systems interaction". ISO. https://www.iso.org/standard/46461.html.
48. ↑ "ISO/IEC 14496-25:2011 – Information technology — Coding of audio-visual objects — Part 25: 3D Graphics Compression Model". ISO. https://www.iso.org/standard/57755.html.
49. ↑ "ISO/IEC 14496-26:2010 – Information technology — Coding of audio-visual objects — Part 26: Audio conformance". ISO. https://www.iso.org/standard/53750.html.
50. ↑ "ISO/IEC 14496-27:2009 – Information technology — Coding of audio-visual objects — Part 27: 3D Graphics conformance". ISO. https://www.iso.org/standard/53751.html.
51. ↑ ISO. "ISO/IEC 14496-27:2009/Amd 6:2015 – Pattern-based 3D mesh coding conformance". https://www.iso.org/standard/65392.html.
52. ↑ "ISO/IEC CD 14496-28 – Information technology — Coding of audio-visual objects — Part 28: Composite font representation". ISO. https://www.iso.org/standard/59240.html.
53. ↑ "MPEG Licensing Authority – MPEG-4 Visual: Introduction". http://www.mpegla.com/main/programs/M4V/Pages/Intro.aspx.
54. ↑ "MPEG Licensing Authority – MPEG-4 Systems: Introduction". http://www.mpegla.com/main/programs/M4S/Pages/Intro.aspx.

## External links

* Overview of the MPEG-4 Standard at the MPEG Official Website
*   *   * JM MPEG-4 AVC /H.264 Reference Code
* OpenIPMP: Open Source DRM Project for MPEG-4

* v
* t
* e

Multimedia compression and container formats

Video
compression|

| ISO, IEC, MPEG|

* MJPEG
* Motion JPEG 2000
* MPEG-1
* MPEG-2
* Part 2
* MPEG-4
* Part 2 / ASP
* Part 10 / AVC
* MPEG-H
* Part 2 / HEVC
* MPEG-I
* Part 3 / VVC

|

ITU-T, VCEG|

* H.120
* DCT
* H.261
* H.262
* H.263
* H.264 / AVC
* H.265 / HEVC
* H.266 / VVC
* DV

SMPTE|

* VC-1
* VC-2
* VC-3
* VC-5

TrueMotion|

* TrueMotion S
* DCT
* VP3
* VP6
* VP7
* VP8
* VP9
* AV1

Others|

* Apple Video
* AVS
* Bink
* Cinepak
* Daala
* DVI
* EVC
* FFV1
* Huffyuv
* Indeo
* Lagarith
* Microsoft Video 1
* MSU Lossless
* OMS Video
* Pixlet
* ProRes 422
* ProRes 4444
* QuickTime
* Animation
* Graphics
* RealVideo
* RTVideo
* SheerVideo
* Smacker
* Sorenson Video/Spark
* Theora
* Thor
* WMV
* XEB
* YULS

Audio
compression|

| ISO, IEC, MPEG|

* MPEG-1 Layer II
* Multichannel
* MPEG-1 Layer I
* MPEG-1 Layer III (MP3)
* AAC
* HE-AAC
* AAC-LD
* MPEG Surround
* MPEG-4 ALS
* MPEG-4 SLS
* MPEG-4 DST
* MPEG-4 HVXC
* MPEG-4 CELP
* MPEG-D USAC
* MPEG-H 3D Audio

|

ITU-T|

* G.711
* A-law
* µ-law
* G.718
* G.719
* G.722
* G.722.1
* G.722.2
* G.723
* G.723.1
* G.726
* G.728
* G.729
* G.729.1

IETF|

* Opus
* iLBC
* Speex
* Vorbis

3GPP|

* AMR
* AMR-WB
* AMR-WB+
* EVRC
* EVRC-B
* EVS
* GSM-HR
* GSM-FR
* GSM-EFR

ETSI|

* AC-3
* AC-4
* DTS

Others|

* ACELP
* ALAC
* Asao
* ATRAC
* AVS
* CELT
* Codec 2
* DRA
* FLAC
* iSAC
* Monkey's Audio
* TTA
* True Audio
* MT9
* Musepack
* OptimFROG
* OSQ
* QCELP
* RCELP
* RealAudio
* RTAudio
* SD2
* SHN
* SILK
* Siren
* SMV
* SVOPC
* TwinVQ
* VMR-WB
* VSELP
* WavPack
* WMA
* MQA
* aptX
* aptX HD
* aptX Low Latency
* aptX Adaptive
* LDAC
* LHDC
* LLAC

Image
compression|

| IEC, ISO,
IETF, W3C,
ITU-T, JPEG|

* CCITT Group 4
* DCT
* HEIF
* HEVC
* JPEG
* JPEG XR
* JPEG XT
* TIFF/EP
* Arithmetic
* JBIG
* JBIG2
* JPEG-LS
* JPEG 2000
* LZ
* GIF
* PNG
* TIFF
* TIFF/IT

|

Others|

* APNG
* BPG
* DjVu
* EXR
* FLIF
* ICER
* MNG
* PGF
* QTVR
* WBMP
* WebP

Containers|

| ISO, IEC|

* MPEG-ES
* MPEG-PES
* MPEG-PS
* MPEG-TS
* ISO base media file format
* MPEG-4 Part 14 (MP4)
* Motion JPEG 2000
* MPEG-21 Part 9
* MPEG media transport

|

ITU-T|

* H.222.0
* T.802

IETF|

* RTP
* Ogg

SMPTE|

* GXF
* MXF

Others|

* 3GP and 3G2
* AMV
* ASF
* AIFF
* AVI
* AU
* BPG
* Bink
* Smacker
* BMP
* DivX Media Format
* EVO
* Flash Video
* IFF
* M2TS
* Matroska
* WebM
* QuickTime File Format
* RatDVD
* RealMedia
* RIFF
* WAV
* MOD and TOD
* VOB, IFO and BUP

Collaborations|

* NETVC
* MPEG LA
* HEVC Advance

Methods|

* Discrete cosine transform
* DCT
* MDCT
* Entropy
* Arithmetic
* Huffman
* Modified
* FFT
* LPC
* ACELP
* CELP
* LSP
* WLPC
* Lossless
* Lossy
* LZ
* DEFLATE
* LZW
* PCM
* A-law
* µ-law
* ADPCM
* DPCM
* Transform
* Wavelet
* Daubechies
* DWT
* Transform

Lists|

* Comparison of audio coding formats
* Comparison of video codecs
* List of codecs

See Compression methods for techniques and Compression software for codecs

* v
* t
* e

ISO standards by standard number

List of ISO standards / ISO romanizations / IEC standards

1–9999|

* 1
* 2
* 3
* 4
* 5
* 6
* 7
* 9
* 16
* 17
* 31
* -0
* -1
* -2
* -3
* -4
* -5
* -6
* -7
* -8
* -9
* -10
* -11
* -12
* -13
* 128
* 216
* 217
* 226
* 228
* 233
* 259
* 269
* 302
* 306
* 361
* 428
* 500
* 518
* 519
* 639
* -1
* -2
* -3
* -5
* -6
* 646
* 657
* 668
* 690
* 704
* 732
* 764
* 838
* 843
* 860
* 898
* 965
* 999
* 1000
* 1004
* 1007
* 1073-1
* 1155
* 1413
* 1538
* 1629
* 1745
* 1989
* 2014
* 2015
* 2022
* 2033
* 2047
* 2108
* 2145
* 2146
* 2240
* 2281
* 2533
* 2709
* 2711
* 2720
* 2788
* 2848
* 2852
* 3029
* 3103
* 3166
* -1
* -2
* -3
* 3297
* 3307
* 3601
* 3602
* 3864
* 3901
* 3950
* 3977
* 4031
* 4157
* 4165
* 4217
* 4909
* 5218
* 5426
* 5427
* 5428
* 5725
* 5775
* 5776
* 5800
* 5807
* 5964
* 6166
* 6344
* 6346
* 6385
* 6425
* 6429
* 6438
* 6523
* 6709
* 6943
* 7001
* 7002
* 7010
* 7027
* 7064
* 7098
* 7185
* 7200
* 7498
* -1
* 7637
* 7736
* 7810
* 7811
* 7812
* 7813
* 7816
* 7942
* 8000
* 8093
* 8178
* 8217
* 8373
* 8501-1
* 8571
* 8583
* 8601
* 8613
* 8632
* 8651
* 8652
* 8691
* 8805/8806
* 8807
* 8820-5
* 8859
* -1
* -2
* -3
* -4
* -5
* -6
* -7
* -8
* -8-I
* -9
* -10
* -11
* -12
* -13
* -14
* -15
* -16
* 8879
* 9000/9001
* 9036
* 9075
* 9126
* 9141
* 9227
* 9241
* 9293
* 9314
* 9362
* 9407
* 9506
* 9529
* 9564
* 9592/9593
* 9594
* 9660
* 9797-1
* 9897
* 9899
* 9945
* 9984
* 9985
* 9995

10000–19999|

* 10005
* 10006
* 10007
* 10116
* 10118-3
* 10160
* 10161
* 10165
* 10179
* 10206
* 10218
* 10303
* -11
* -21
* -22
* -28
* -238
* 10383
* 10487
* 10585
* 10589
* 10646
* 10664
* 10746
* 10861
* 10957
* 10962
* 10967
* 11073
* 11170
* 11179
* 11404
* 11544
* 11783
* 11784
* 11785
* 11801
* 11898
* 11940 (-2)
* 11941
* 11941 (TR)
* 11992
* 12006
* 12182
* 12207
* 12234-2
* 13211
* -1
* -2
* 13216
* 13250
* 13399
* 13406-2
* 13450
* 13485
* 13490
* 13567
* 13568
* 13584
* 13616
* 14000
* 14031
* 14224
* 14289
* 14396
* 14443
* 14496
* -2
* -3
* -6
* -10
* -11
* -12
* -14
* -17
* -20
* 14644
* 14649
* 14651
* 14698
* 14750
* 14764
* 14882
* 14971
* 15022
* 15189
* 15288
* 15291
* 15292
* 15398
* 15408
* 15444
* -3
* 15445
* 15438
* 15504
* 15511
* 15686
* 15693
* 15706
* -2
* 15707
* 15897
* 15919
* 15924
* 15926
* 15926 WIP
* 15930
* 16023
* 16262
* 16355-1
* 16612-2
* 16750
* 16949 (TS)
* 17024
* 17025
* 17100
* 17203
* 17369
* 17442
* 17799
* 18000
* 18004
* 18014
* 18245
* 18629
* 18916
* 19005
* 19011
* 19092 (-1
* -2)
* 19114
* 19115
* 19125
* 19136
* 19407
* 19439
* 19500
* 19501
* 19502
* 19503
* 19505
* 19506
* 19507
* 19508
* 19509
* 19510
* 19600
* 19752
* 19757
* 19770
* 19775-1
* 19794-5
* 19831

20000+|

* 20000
* 20022
* 20121
* 20400
* 21000
* 21047
* 21500
* 21827:2002
* 22000
* 23270
* 23271
* 23360
* 24517
* 24613
* 24617
* 24707
* 25178
* 25964
* 26000
* 26262
* 26300
* 26324
* 27000 series
* 27000
* 27001
* 27002
* 27006
* 27729
* 28000
* 29110
* 29148
* 29199-2
* 29500
* 30170
* 31000
* 32000
* 37001
* 38500
* 40500
* 42010
* 45001
* 50001
* 55000
* 80000
* -1
* -2
* -3

* Category

* v
* t
* e

MPEG (Moving Picture Experts Group)

* MPEG-1
* 2
* 3
* 4
* 7
* 21
* A
* B
* C
* D
* E
* G
* V
* M
* U
* H

MPEG-1 Parts|

* Part 1: Systems
* Program stream
* Part 2: Video
* based on H.261
* Part 3: Audio
* Layer I
* Layer II
* Layer III

MPEG-2 Parts|

* Part 1: Systems (H.222.0)
* Transport stream
* Program stream
* Part 2: Video (H.262)
* Part 3: Audio
* Layer I
* Layer II
* Layer III
* MPEG Multichannel
* Part 6: DSM CC
* Part 7: Advanced Audio Coding

MPEG-4 Parts|

* Video
* based on H.263
* Audio
* DMIF
* Part 10: Advanced Video Coding (H.264)
* Scene description
* Part 12: ISO base media file format
* MP4 file format
* Streaming text format
* LASeR
* Part 22: Open Font Format
* Part 33: Internet Video Coding

MPEG-7 Parts|

* Description definition language

MPEG-21 Parts|

* Parts 2, 3 and 9: Digital Item
* Part 5: Rights Expression Language

MPEG-D Parts|

* Part 1: MPEG Surround
* Part 3: Unified Speech and Audio Coding

MPEG-G Parts|

* Part 1: Transport and Storage of Genomic Information
* Part 2: Coding of Genomic Information
* Part 3: APIs
* Part 4: Reference Software
* Part 5: Conformance

MPEG-H Parts|

* Part 1: MPEG media transport
* Part 2: High Efficiency Video Coding
* Part 3: MPEG-H 3D Audio
* Part 12: High Efficiency Image File Format

Other|

MPEG-DASH

* v
* t
* e

List of International Electrotechnical Commission standards

IEC standards|

* IEC 60027
* IEC 60034
* IEC 60038
* IEC 60062
* IEC 60063
* IEC 60068
* IEC 60112
* IEC 60228
* IEC 60269
* IEC 60297
* IEC 60309
* IEC 60320
* IEC 60364
* IEC 60446
* IEC 60559
* IEC 60601
* IEC 60870
* IEC 60870-5
* IEC 60870-6
* IEC 60906-1
* IEC 60908
* IEC 60929
* IEC 60958
* AES3
* S/PDIF
* IEC 61030
* IEC 61131
* IEC 61131-3
* IEC 61158
* IEC 61162
* IEC 61334
* IEC 61346
* IEC 61355
* IEC 61360
* IEC 61400
* IEC 61499
* IEC 61508
* IEC 61511
* IEC 61850
* IEC 61851
* IEC 61883
* IEC 61960
* IEC 61968
* IEC 61970
* IEC 62014-4
* IEC 62056
* IEC 62061
* IEC 62196
* IEC 62262
* IEC 62264
* IEC 62304
* IEC 62325
* IEC 62351
* IEC 62365
* IEC 62366
* IEC 62379
* IEC 62386
* IEC 62455
* IEC 62680
* IEC 62682
* IEC 62700

ISO/IEC standards|

* ISO/IEC 646
* ISO/IEC 2022
* ISO/IEC 4909
* ISO/IEC 5218
* ISO/IEC 6429
* ISO/IEC 6523
* ISO/IEC 7810
* ISO/IEC 7811
* ISO/IEC 7812
* ISO/IEC 7813
* ISO/IEC 7816
* ISO/IEC 7942
* ISO/IEC 8613
* ISO/IEC 8632
* ISO/IEC 8652
* ISO/IEC 8859
* ISO/IEC 9126
* ISO/IEC 9293
* ISO/IEC 9592
* ISO/IEC 9593
* ISO/IEC 9899
* ISO/IEC 9945
* ISO/IEC 9995
* ISO/IEC 10021
* ISO/IEC 10116
* ISO/IEC 10165
* ISO/IEC 10179
* ISO/IEC 10646
* ISO/IEC 10967
* ISO/IEC 11172
* ISO/IEC 11179
* ISO/IEC 11404
* ISO/IEC 11544
* ISO/IEC 11801
* ISO/IEC 12207
* ISO/IEC 13250
* ISO/IEC 13346
* ISO/IEC 13522-5
* ISO/IEC 13568
* ISO/IEC 13818
* ISO/IEC 14443
* ISO/IEC 14496
* ISO/IEC 14882
* ISO/IEC 15288
* ISO/IEC 15291
* ISO/IEC 15408
* ISO/IEC 15444
* ISO/IEC 15445
* ISO/IEC 15504
* ISO/IEC 15511
* ISO/IEC 15693
* ISO/IEC 15897
* ISO/IEC 15938
* ISO/IEC 16262
* ISO/IEC 17024
* ISO/IEC 17025
* ISO/IEC 18000
* ISO/IEC 18004
* ISO/IEC 18014
* ISO/IEC 19752
* ISO/IEC 19757
* ISO/IEC 19770
* ISO/IEC 19788
* ISO/IEC 20000
* ISO/IEC 21000
* ISO/IEC 21827
* ISO/IEC 23000
* ISO/IEC 23003
* ISO/IEC 23008
* ISO/IEC 23270
* ISO/IEC 23360
* ISO/IEC 24707
* ISO/IEC 24727
* ISO/IEC 24744
* ISO/IEC 24752
* ISO/IEC 26300
* ISO/IEC 27000
* ISO/IEC 27000-series
* ISO/IEC 27002
* ISO/IEC 27040
* ISO/IEC 29119
* ISO/IEC 33001
* ISO/IEC 38500
* ISO/IEC 42010
* ISO/IEC 80000

Related|

* International Electrotechnical Commission

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