The Moving Picture Experts Group, the ISO/IEC standardisation body (formally ISO/IEC JTC 1/SC 29 working groups) that since 1988 has defined the dominant international standards for compressed digital audio and video — MPEG-1 and MP3, MPEG-2 for broadcast television and DVD, MPEG-4 AVC/H.264, HEVC, and VVC for streaming, plus systems standards such as MP4, MPEG-DASH, and MPEG-H spatial audio — underpinning virtually all modern media distribution.
Semantic Classification
Content
Definition
MPEG (Moving Picture Experts Group) is the standardisation body for compressed digital audio and video, founded in 1988 under ISO/IEC and convened for over three decades by Leonardo Chiariglione. Following a 2020 reorganisation, its work continues as a set of working groups under ISO/IEC JTC 1/SC 29, but “MPEG” remains the umbrella brand on the standards themselves. Its output defines how virtually all recorded and transmitted media is encoded: an unbroken line from Video CD and MP3 through digital television and DVD to today’s streaming services.
The major generations track the history of media distribution. MPEG-1 (1993) brought Video CD and, via its Audio Layer III, the MP3 format that reshaped the music industry. MPEG-2 (1995) became the backbone of digital broadcast television and DVD. MPEG-4 introduced object-based media and, jointly with ITU-T’s VCEG under the JVT/JCT collaborations, produced AVC/H.264 (2003) — still the most widely deployed video codec — followed by HEVC/H.265 (2013) and VVC/H.266 (2020), each roughly halving bitrate at equivalent quality. Systems-layer standards are equally consequential: the MP4 file format (ISO Base Media File Format), MPEG-TS transport streams, and MPEG-DASH, the ISO standard for Adaptive Bitrate Streaming that, alongside HLS, carries most internet video.
MPEG standards are developed through competitive call-for-proposals cycles, verified against reference software and conformance suites, and licensed through patent pools — the last being its chief controversy. HEVC’s fragmented royalty landscape (three pools plus independent licensors) is widely credited with accelerating the royalty-free alternative AV1 from the Alliance for Open Media, the central rivalry in codec standardisation today. Beyond video, MPEG-H 3D Audio provides object-based Spatial Audio for broadcast and VR, and newer work — point-cloud compression (V-PCC/G-PCC), MPEG Immersive Video, and AI-based coding studies — targets immersive and machine-oriented media.
Current Landscape
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Deployment: H.264 remains near-universal in hardware; HEVC dominates 4K broadcast and Apple ecosystems; AV1 is the principal royalty-free competitor at YouTube and Netflix. VVC adoption accelerated through 2025: Brazil regulated its VVC-based “TV 3.0”/DTV+ system via Decree No. 12,595/2025 (27 August 2025), ATSC approved VVC as an (optional) full ATSC 3.0 standard in July 2025, and Google’s Android 17 adds native VVC/H.266 support on devices with compatible hardware decoders.
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Next generation: on 14 July 2025 JVET published requirements for the successor to VVC (working label H.267), targeting at least 40% bitrate reduction over VVC Main 10, with standardisation expected around 2028-2029. The competing royalty-free AV2 from AOMedia was finalised in late May 2026 (announced 9 June 2026), renewing the AV1-versus-MPEG rivalry a generation on.
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Licensing: patent economics remain the fault line — Access Advance launched a Video Distribution Patent pool covering HEVC, VVC, AV1 and VP9 distribution on 16 January 2025, with rates published in July 2025.
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Streaming stack: MPEG-DASH + CMAF (a joint MPEG effort) remains the common packaging layer for large-scale adaptive streaming.
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Immersive and machine media: V-PCC and G-PCC compress point clouds for volumetric video; MPEG-I targets six-degrees-of-freedom experiences; and MPEG-AI work on Video Coding for Machines (VCM) and neural-network-based coding signals a shift toward codecs optimised for computer-vision consumers rather than human viewers.
Sources:
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http://aomedia.org/press%20releases/Alliance-for-Open-Media-Releases-AV2-Codec/