Versatile Video Coding
Versatile Video Coding (VVC) (MPEG-I Part 3) is a future video compression standard being developed for finalisation around 2020 by the Joint Video Exploration Team (JVET), a united video expert team of the MPEG consortium and the ITU. At times, it was also referred to as Future Video Coding (FVC) or as ITU H.266. It will be the successor to High Efficiency Video Coding / HEVC (also known as ITU H.265). The standardization process for the HEVC successor officially began in October 2017. At IBC 2018, a version of one codec was shown that compresses 40% more efficiently than HEVC.
Goals and Schedule
In October 2015, MPEG and VCEG formed the Joint Video Exploration Team (JVET) to evaluate available compression technologies and study the requirements for a next-generation video compression standard. The new algorithms should have 30-50% better compression rate for the same perceptual quality, with support for lossless and subjectively lossless compression. It should also support YCbCr 4:4:4, 4:2:2 and 4:2:0 with 10 to 16 bits per component, BT.2100 wide color gamut and high dynamic range (HDR) of more than 16 stops (with peak brightness of 1000, 4000 and 10000 nits), auxiliary channels (for depth, transparency, etc.), variable and fractional frame rates from 0 to 120 Hz, scalable video coding for temporal (frame rate), spatial (resolution), SNR, color gamut and dynamic range differences, stereo/multiview coding, panoramic formats, and still picture coding. Encoding complexity of 10 times that of HEVC is expected. JVET issued a final “Call for Proposals” in October 2017, with the first working draft of the Versatile Video Coding standard released in April 2018; the final standard is to be approved before the end of 2020.
- At least 30 percent better compression than H.265 / HEVC (target goal: consistently 50 percent)
- Resolutions: from 4K to 16K
- Support for 360° videos
- October 2017: Call for Proposals
- February 2018: Evaluation of the proposals received
- October 2018: First test modules for evaluation
- October 2019: First draft of the standard
- End of 2020: First official standard
- June 2021: First hardware implementations
The AOMedia Video 1 process saw the release of another video compression method in 2018, which is likely to achieve almost the same compression rates and is offered by Alliance for Open Media royalty free. With future licensing from the MPEG licensing authority, the wishes of MPEG founder Leonardo Chiariglione are that they would also offer a standard codec royalty free, pending certain patent applications, the active feature set, which patent rights are available, and any required downstream license fees.
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- VVC website at the Fraunhofer Heinrich Hertz Institute
- Stand by for ITU H.266 compression
- Improvement of HEVC Intercoding Mode using multiple transforms
- Transform competition for temporal prediction in video coding
- Adaptive transforms for inter-predicted residuals in post-HEVC video coding
- Future Video Coding