THtheandrewbailey·May 10, 2022
AV1 v1 happened 4 years ago, not 18 days ago. SVT is Intel's AV1 encoder.
https://aomedia.googlesource.com/aom/+/refs/tags/v1.0.0
https://github.com/AOMediaCodec/av1-spec/releases/tag/v1.0.0
In AV1 Video CodecAOMediaCodec
av1-spec
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AOMediaCodec / av1-spec
av1-spec
AV1 Bitstream & Decoding Process Specification
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What it is
AV1 Bitstream & Decoding Process Specification
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Observed mentions: 2018-06-26 20:48:31 UTC to 2022-05-10 12:52:23 UTC.
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| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
3 sourcesAV1 has lightfield encoding support, which should allow for impressive mobile VR content once hardware decoders are available! Annex D of the spec has more information: https://github.com/AOMediaCodec/av1-spec/blob/master/annex.d...
The general technique was described back in 2000: https://ieeexplore.ieee.org/document/838165/
In AV1 ReleasedDirect link to 1.0.0 spec (PDF): https://github.com/AOMediaCodec/av1-spec/releases/download/v...
Unofficial working copy (HTML): https://aomediacodec.github.io/av1-spec/
Source (of spec): https://github.com/AOMediaCodec/av1-spec/tree/v1.0.0
AV1 is a video codec developed by a consortium of companies, broadly descending from Google's VP9 while incorporating significant enhancements from Cisco and Xiph.Org. The participant companies are numerous and include big chipmakers and content delivery networks, banding together to perpetuate a royalty-free video codec that mounts a competition against MPEG's efforts, whose rules don't exclude techniques that are patented.
This is news because previous for previous codecs in this bloodline, like VP8 and VP9, the bitstream has never been frozen [1][2]. This wishiwashiness didn't preclude hardware impl
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ementations, and certainly not software implementations, but was very much a departure of the orthodox, old-hat practice in the standard-speccing space. With AV1, they're trying an approach that competes more directly with the MPEG specs, by having a bitstream that's not a moving target and is more formal than just a document embarrassingly marked as draft [2].
[1] http://blog.webmproject.org/2010/06/future-of-vp8-bitstream.... [2] https://www.webmproject.org/vp9/#draft-vp9-bitstream-and-dec...