Essential Video Coding
| Essential Video Coding | |
| Status | Draft |
|---|---|
| Year started | 2018 (Initial Requirements Document) |
| Organization | ISO |
| Committee | MPEG |
| Domain | Video compression |
| Website | mpeg |
MPEG-5 Essential Video Coding (EVC) is a current video compression standard that has been completed in April 2020 by decision of MPEG WG11 during 130 meeting.[1][2][3] [4] The standard is to consist of a royalty-free subset and individually switchable enhancements.[2][3][5]
Concept
The publicly available requirement document[5] outlines a development process that is defensive against patent threats: Two sets of coding tools, base and enhanced, are defined:
- The base consist of tools that were made public more than 20 years ago or for which a Type 1 declaration is received. Type 1, or option 1, is ISO speak for royalty-free.[6]
- 21[7] Tools in the enhanced have passed an extra compression efficiency justification and have possibility to be disabled individually.
Each of 21 payable tools can have separately acquired and separately negotiated and separately Traded License agreements. [7] Every of 21 different coding tools from payable main profile can be individually turned off and, when necessary, replaced by a corresponding cost free baseline profile tool. This structure makes it easy to fall back to a smaller set of tools in the future, if, for example, licensing complications occur around a specific tool, without breaking compatibility with already deployed decoders. [7]
Bitstream-switchable coding tools are also known from Divideon's XVC.[8]
Contributors
A proposal by Samsung, Huawei and Qualcomm was selected as the basis for EVC.[8] Divideon is among the editors of the standard.[9]
Implementations
- XEVE (the eXtra-fast Essential Video Encoder) is self-described as a fast open source EVC encoder. It is written in C99 and supports both the baseline and main profiles of EVC. Its license is a custom 3-clause BSD license.
See also
- MPEG-5 Part 2 / Low Complexity Enhancement Video Coding / LC EVC
- H.266 / MPEG-I Part 3 / Versatile Video Coding / VVC
- AV1
References
- ^ Pennington, Adrian (6 April 2019). "NAB 2019: Five trends to watch". IBC. Retrieved 6 April 2019.
- ^ a b Timmerer, Christian (14 February 2019). "MPEG 125 Meeting Report". Bitmovin. Retrieved 6 April 2019.
- ^ a b Gibellino, Diego (4 March 2019). "Introducing MPEG-5". Retrieved 6 April 2019.
- ^ "MPEG-5 EVC gets final approval". CSImagazine.com. CSImagazine.com. Retrieved 6 May 2020.
- ^ a b "Requirements for a New Video Coding Standard". 12 October 2018. Retrieved 6 April 2019.
- ^ Chiariglione, Leonardo (28 January 2018). "A crisis, the causes and a solution". Retrieved 6 April 2019.
I saw the danger coming and designed a strategy for it. This would create two tracks in MPEG: one track producing royalty free standards (Option 1, in ISO language) and the other the traditional Fair Reasonable and Non Discriminatory (FRAND) standards (Option 2, in ISO language).
- ^ a b c Samuelsson, Jonatan; Choi, Kiho; Chen, Jianle; Rusanovskyy, Dmytro. "MPEG-5 Part 1: Essential Video Coding". ieeexplore.ieee.org. SMPTE. Retrieved 26 June 2021.
{{cite web}}: CS1 maint: extra punctuation (link) - ^ a b Ozer, Jan (October 15, 2019). "Inside MPEG's Ambitious Plan to Launch 3 Video Codecs in 2020". Retrieved June 12, 2020.
Though the EVC Main profile uses royalty-bearing "tools," these can be switched on and off with "limited loss of performance." This was the model deployed by Divideon and their xvc codec, and, in theory, it allows those deploying the technology to pick and choose both the performance and the associated royalty cost. (…) Two proposals were submitted in response to MPEG's call for proposals for MPEG-5 Part 1, and MPEG selected the proposal from Samsung, Huawei, and Qualcomm
- ^ "SMPTE 2019: MPEG-5 EVC". October 21, 2019. Retrieved June 12, 2020.
External links
- Text of the standard on the ISO website (feature freeze (FDIS status) as of August 2020)
- MPEG publications on EVC
- Divideon's resource page
- Video presentation by Jonatan Samuelsson (SMPTE 2019)
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