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'''Advanced Video Coding''' ('''AVC'''), also referred to as '''H.264''' or '''MPEG-4 Part 10''', is a [[video compression standard]] based on block-oriented, [[motion compensation|motion-compensated]] coding.<ref>{{Cite web|url=https://www.itu.int/rec/T-REC-H.264|title=H.264 : Advanced video coding for generic audiovisual services|website=www.itu.int|url-status=live|archive-url=https://web.archive.org/web/20191031100750/https://www.itu.int/rec/T-REC-H.264|archive-date=2019-10-31|access-date=2019-11-22}}</ref> It is by far the most commonly used format for the recording, compression, and distribution of video content, used by 84-86% of video industry developers {{as of|November 2023|lc=on}}.<ref>{{cite web|url=https://bitmovin.com/downloads/bitmovin-7th-video-developer-report-2023-2024.pdf|title=Video Developer Report 2023/2024 |website=[[Bitmovin]] |date=November 2023}}</ref> It supports a maximum resolution of [[8K resolution|8K UHD]].<ref>{{Cite news|url=http://www.mysterybox.us/blog/2017/2/21/delivering-8k-using-avch264|archive-url=https://web.archive.org/web/20210325084239/https://www.mysterybox.us/blog/2017/2/21/delivering-8k-using-avch264 | archive-date=March 25, 2021|title=Delivering 8K using AVC/H.264|work=Mystery Box|access-date=2017-08-23|language=en-US}}</ref><ref name="Wang" />
The intent of the H.264/AVC project was to create a standard capable of providing good video quality at substantially lower [[bit rate]]s than previous standards (i.e., half or less the bit rate of [[H.262/MPEG-2 Part 2|MPEG-2]], [[H.263]], or [[MPEG-4 Part 2]]), without increasing the complexity of design so much that it would be impractical or excessively expensive to implement. This was achieved with features such as a reduced-complexity integer [[discrete cosine transform]] (integer DCT),<ref name="apple"/> variable block-size segmentation, and multi-picture [[inter frame|inter-picture prediction]]. An additional goal was to provide enough flexibility to allow the standard to be applied to a wide variety of applications on a wide variety of networks and systems, including low and high bit rates, low and high resolution video, [[Broadcasting|broadcast]], [[DVD]] storage, [[Real-time Transport Protocol|RTP]]/[[Internet Protocol|IP]] packet networks, and [[ITU-T]] multimedia [[telephony]] systems. The H.264 standard can be viewed as a "family of standards" composed of a number of different profiles, although its "High profile" is by far the most commonly used format. A specific decoder decodes at least one, but not necessarily all profiles. The standard describes the format of the encoded data and how the data is decoded, but it does not specify algorithms for
H.264 was standardized by the [[ITU-T]] [[Video Coding Experts Group]] (VCEG) of [[ITU-T Study Group 16|Study Group 16]] together with the [[ISO/IEC JTC 1]] [[Moving Picture Experts Group]] (MPEG). The project partnership effort is known as the Joint Video Team (JVT). The ITU-T H.264 standard and the ISO/IEC [[MPEG-4]] AVC standard (formally, ISO/IEC 14496-10 – MPEG-4 Part 10, Advanced Video Coding) are jointly maintained so that they have identical technical content. The final drafting work on the first version of the standard was completed in May 2003, and various extensions of its capabilities have been added in subsequent editions. [[High Efficiency Video Coding]] (HEVC), a.k.a. H.265 and MPEG-H Part 2 is a successor to H.264/MPEG-4 AVC developed by the same organizations, while earlier standards are still in common use.
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