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27th March 2018, 12:01 | #541 | Link |
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Once av1 takes off, I would expect someone to develop a decoder for ffmpeg eventually. Encoders, probably not. Thats more suited for stand-alone projects from the sheer complexity of it.
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LAV Filters - open source ffmpeg based media splitter and decoders |
27th March 2018, 12:03 | #542 | Link | |
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27th March 2018, 12:09 | #543 | Link |
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If ffmpeg developers disagree with some opinions of the original team about e.g. programming styles, I would not be surprised if they may be going to show how it can be made better; wasn't that a reason to develop VPx codecs in parallel to Google? I do not remember everything in detail, but I believe efficiency was one of the focus points.
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27th March 2018, 12:42 | #544 | Link | |
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27th March 2018, 13:38 | #546 | Link |
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They are not called "ffvp9" internally, its just "vp9", which is listed in the quoted output above.
Anyway distinct decoder implementations have several advantages. Often it helps to find bugs in the original decoder, and historically the ffmpeg decoders have also been faster - and they serve as a platform for hardware acceleration, which is not possible with an external decoder like using libaom.
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LAV Filters - open source ffmpeg based media splitter and decoders |
27th March 2018, 14:11 | #547 | Link |
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@sneaker_ger @nevcairiel
Ah, okay. Thanks for clearing that up. It was also confusing that it's named google VP9: Code:
VFS..D vp9 Google VP9 V....D libvpx-vp9 libvpx VP9 (codec vp9) |
27th March 2018, 19:00 | #548 | Link |
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because Google developed the specifications (theory) further from the base of the VP8 specifications originally developed by On2. But there can be different implementations (practice), not only from Google, but also from different authors, still based on the same specifications, but with different code. The listing is indeed not really unambiguous.
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28th March 2018, 12:39 | #552 | Link | |
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28th March 2018, 14:39 | #554 | Link |
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Yep, AV1 1.0 spec is official: https://aomedia.org/the-alliance-for...h-av1-release/
1.0 spec (619 pages) PDF: https://aomediacodec.github.io/av1-spec/av1-spec.pdf Last edited by hajj_3; 28th March 2018 at 14:56. |
28th March 2018, 16:36 | #555 | Link | |
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And what sort of time frame could we expect that in? |
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28th March 2018, 16:47 | #557 | Link |
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New era of video has begun.
Some big companies were already ready https://aomedia.org/the-alliance-for...e-at-nab-2018/ ARM and Intel talk about fast adoption of AV1 into their hardware. |
28th March 2018, 16:53 | #558 | Link |
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They are most likely fixing all the bugs in the initial release in order to have a predictable foundation to work from before dropping in heuristics and optimisations as well as more SIMD instructions. A significant speed-up should be possible by simply reducing the search scope of the encoder at the expense of coding efficiency.
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28th March 2018, 16:59 | #559 | Link |
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And I notice the membership page
https://aomedia.org/membership/members/ Apple is the only one not using its logo? |
28th March 2018, 17:00 | #560 | Link | |
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Cant wait to see what speed up that have. |
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