| 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), standardized as ISO/IEC 23094-1, is a video compression standard that has been completed in April 2020 by decision of MPEG Working Group 11 at its 130th meeting.[1][2][3] [4]
The standard consists of a royalty-free subset and individually switchable enhancements.[2][3][5]
The publicly available requirements document[5] outlines a development process that is defensive against patent threats: Two sets of coding tools, base and enhanced, are defined:
Each of the 21 payable tools can have separately acquired and separately negotiated and separately Traded License agreements. [7] Each 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]
A proposal by Samsung, Huawei and Qualcomm forms the basis of EVC.[8]
MPAI aims to significantly enhance the performance of EVC by improving or replacing traditional tools with AI-based tools, with the goal of reaching at least 25% improvement over the baseline profile of EVC.[10][11][12]
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).
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
| Video compression |
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| Audio compression |
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| Image compression |
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See Compression methods for techniques and Compression software for codecs | |||||||||||||||||