MPEG-5 Essential Video Coding (EVC) is a current
video compression standard
A video coding format (or sometimes video compression format) is a content representation format for storage or transmission of digital video content (such as in a data file or bitstream). It typically uses a standardized video compression algori ...
that has been completed in April 2020 by decision of MPEG Working Group 11 at its 130th meeting.
The standard consists of a royalty-free subset and individually switchable enhancements.
Concept
The publicly available requirements document
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, means "royalty-free", in the nomenclature used in ISO documents.
* The "enhanced" set consists of 21
other tools which have passed an extra compression efficiency justification and which can be disabled individually.
Each of the 21
payable tools can have separately acquired and separately
negotiated and separately
Traded
Trade involves the transfer of goods and services from one person or entity to another, often in exchange for money. Economists refer to a system or network that allows trade as a market.
An early form of trade, barter, saw the direct excha ...
License agreement
A license (or licence) is an official permission or permit to do, use, or own something (as well as the document of that permission or permit).
A license is granted by a party (licensor) to another party (licensee) as an element of an agreeme ...
s.
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
A license (or licence) is an official permission or permit to do, use, or own something (as well as the document of that permission or permit).
A license is granted by a party (licensor) to another party (licensee) as an element of an agreeme ...
complications occur around a specific tool, without breaking
compatibility with already deployed decoders.
A proposal by
Samsung
The Samsung Group (or simply Samsung) ( ko, 삼성 ) is a South Korean multinational manufacturing conglomerate headquartered in Samsung Town, Seoul, South Korea. It comprises numerous affiliated businesses, most of them united under the ...
,
Huawei
Huawei Technologies Co., Ltd. ( ; ) is a Chinese multinational technology corporation headquartered in Shenzhen, Guangdong, China. It designs, develops, produces and sells telecommunications equipment, consumer electronics and various smar ...
and
Qualcomm forms the basis of EVC.
Implementations
* XEVE (eXtra-fast Essential Video Encoder) is self-described as a fast open source EVC encoder. It is written in
C99
C99 (previously known as C9X) is an informal name for ISO/IEC 9899:1999, a past version of the C programming language standard. It extends the previous version ( C90) with new features for the language and the standard library, and helps impl ...
and supports both the baseline and main profiles of EVC. Its license is a custom
3-clause BSD license
BSD licenses are a family of permissive free software licenses, imposing minimal restrictions on the use and distribution of covered software. This is in contrast to copyleft licenses, which have share-alike requirements. The original BSD lice ...
.
MPAI-EVC standard
Moving Picture, Audio and data Coding by
AI uses:
MPEG-5 Essential Video Coding
in its project:
MPAI - Enhanced Video Coding.
This Project aims to significantly enhance the performance of the traditional video codec MPEG-5 EVC by improving or replacing traditional tools with
AI-based tools.
The goal of the MPAI group is to enhance MPEG-5 EVC using
AI-tools to reach at least 25% improvement over the baseline profile of EVC.
More preciesely MPAI-EVC Evidence Project is just to reach at least 25% improvement over the baseline profile of EVC.
The main goal of MPAI-EVC propper project: Final Standard will attempt to reach at least 35-50% improvement over state of the art traditional EVC.
("State of the art" may suggest challenging Main Profile of EVC.)
Since Base Profile is free of patents fees; therefore there should be no patent issues hindering development from legal side.
See also
*
MPEG-5 Part 2 / Low Complexity Enhancement Video Coding / LC EVC
*
H.266 / MPEG-I Part 3 / Versatile Video Coding / VVC
*
AV1
AOMedia Video 1 (AV1) is an open, royalty-free video coding format initially designed for video transmissions over the Internet. It was developed as a successor to VP9 by the Alliance for Open Media (AOMedia), a consortium founded in 2015 th ...
*
IP core
In electronic design, a semiconductor intellectual property core (SIP core), IP core, or IP block is a reusable unit of logic, cell, or integrated circuit layout design that is the intellectual property of one party. IP cores can be licensed to ...
- Semiconductor
intellectual property
Intellectual property (IP) is a category of property that includes intangible creations of the human intellect. There are many types of intellectual property, and some countries recognize more than others. The best-known types are patents, cop ...
core - Licensing scheme based on similar solutions as for MPEG-5 Part 1: EVC
References
External links
Text of the standard on the ISO website(feature freeze (''FDIS'' status) as of August 2020)
MPEG
Video compression
Video codecs
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