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Old 24th January 2017, 13:33   #161  |  Link
Quikee
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Originally Posted by mzso View Post
This makes me wonder. Will they have an officially supported extension/container for AV1? Or will they just leave the situation as bad as it is, with a bunch of entities having their own preferred containers?
They'll most likely extend WebM (or they already did actually as aomenc already outputs WebM with AV1) . Probably they'll want to extend MP4 too (like they did it for VP9 (Netflix) and Opus).
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Old 24th January 2017, 14:49   #162  |  Link
dapperdan
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For me it's just another container. Google didn't want to have anything to do in the MOV container. Now Apple is in the team, so I expect that, and MOV will be under codec VPX / AOM.
I don't think Apple has publicly announced anything about AOM, has it?
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Old 24th January 2017, 14:57   #163  |  Link
wiak
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Originally Posted by Quikee View Post
They'll most likely extend WebM (or they already did actually as aomenc already outputs WebM with AV1) . Probably they'll want to extend MP4 too (like they did it for VP9 (Netflix) and Opus).
this is how webm is
WebM v1 aka VP8/Vorbis
WebM v2 aka VP9/Opus

in the future it will probably look like this

WebM v3 aka AV1/Opus

the preferred container for av1 is webm as the encoder and decoders has a muxer and demuxer built in already

you can still put it in matroska, mov, and other containers, but webm has a much better compatibility guaranteed than other containers, its much closer to mp4 which only has AVC/HEVC with AAC audio etc
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Old 24th January 2017, 15:44   #164  |  Link
Jamaika
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you can still put it in matroska, mov, and other containers, but webm has a much better compatibility guaranteed than other containers, its much closer to mp4 which only has AVC/HEVC with AAC audio etc
As regards the work codec webm it better preserves parameters of converter ffmpeg codec than the VPX / AOM. I don't know why it is like that.
As regards the codec HEVC. In the Magix Vegas 14 codec Intel HEVC is in MOV container.

PS Even half a year ago it was added to the VPX codec MOV. Now is blocked and the problem solved.
Sam codec AV1 IVF currently can't be added to the Matroska container.
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I don't think Apple has publicly announced anything about AOM, has it?
VP9 only supported in MP4.
VP9 in MP4 support is experimental, add '-strict -2' if you want to use it.
That may change in a month.

ffmpeg.exe -i input.mov -f mp4 -c:v libvpx-vp9 -vb 2000k -strict -2 output.mp4

At one time the user RBO wrote two articles about the construction of codecs in containers VP9 / AV1. Unfortunately I don't received information, will codecs vpx be implemented in MP4Box?

Last edited by Jamaika; 24th January 2017 at 16:20.
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Old 30th January 2017, 02:31   #165  |  Link
Nintendo Maniac 64
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I don't think Apple has publicly announced anything about AOM, has it?
No, Apple has not seeing how Apple is not listed on here:

http://aomedia.org/about-us/
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Old 30th January 2017, 07:19   #166  |  Link
Jamaika
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In the press from the previous year was just a suggestion:
While this collaboration falls far short of Apple joining the Alliance for Open Media, it does signal that the two companies can work together effectively. It also indicates that Apple, long and publicly intransigent on MPEG DASH, is willing to contribute to new standards that benefit the common good. Will Apple join the Alliance? “We’ve been talking to a lot of companies, and recruiting definitely isn’t our challenge," Gabe Frost said. "The hard part is the engineering effort, taking the next step, and driving contributions through the open source project.”
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Old 30th January 2017, 16:30   #167  |  Link
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Google has stopped encoding 4k videos in h264, leaving Safari users on Mac OS without that option. VP9 is still impacting battery life though so my guess is Apple will start shipping AV1 decoders once bitstream is frozen. Implementing VP9 now would be a bit pointless and Apple has been sticking with h264/AAC for a rather long time, hence they will most likely want the same ROI on the next set of codecs.
Joining the AOM now might just completely break down support for HEVC as well since Apple is one of the final large holdouts not shipping consumer devices with VP9. Not sure if Apple wants to do that or if they are bound by agreements with the MPEG LA not to relicense their patents to others. At this stage they are probably just waiting for AV1 to be complete and then making a decision.
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Old 1st February 2017, 13:36   #168  |  Link
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Google has stopped encoding 4k videos in h264
That is not true. (Example)
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Old 1st February 2017, 18:41   #169  |  Link
bstrobl
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That is not true. (Example)

Nope, 1440p max on Safari.
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Old 1st February 2017, 19:38   #170  |  Link
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It's still encoded and available (e.g. via youtube-dl) as 3840x2160 H.264. I don't know about Safari.
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Old 3rd February 2017, 13:51   #171  |  Link
dapperdan
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https://www.twitch.tv/videos/94956965

An overview of AOM from last year. Mostly old news and a recap, though in response to a question they do mention that AV1 is not the final name for the codec.

Also justifies some of Youtube/Google's design decisions around sending video to people in countries where the CPU available is higher than the bandwith.
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Old 6th February 2017, 00:13   #172  |  Link
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Slides from FOSSDEM

(from http://phoronix.com/scan.php?page=ne...ec-FOSDEM-2017 )
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Old 6th February 2017, 00:21   #173  |  Link
wiak
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Originally Posted by dapperdan View Post
https://www.twitch.tv/videos/94956965

An overview of AOM from last year. Mostly old news and a recap, though in response to a question they do mention that AV1 is not the final name for the codec.

Also justifies some of Youtube/Google's design decisions around sending video to people in countries where the CPU available is higher than the bandwith.
neat added to my overview page
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Old 6th February 2017, 12:52   #174  |  Link
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And the presentation from FOSDEM:

http://video.fosdem.org/2017/K.3.401/om_av1.mp4
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Old 6th February 2017, 14:10   #175  |  Link
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And the presentation from FOSDEM:

http://video.fosdem.org/2017/K.3.401/om_av1.mp4
Slides are gone, any backup link?
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Old 6th February 2017, 22:19   #176  |  Link
mandarinka
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Slides are gone, any backup link?
https://fosdem.org/2017/schedule/eve...av1_update.pdf
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Old 7th February 2017, 03:41   #177  |  Link
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That is literally no news in the slide.

And it is hasn't pass IP test, I can bet the bitstream wont be frozen until next year. It is good they didn't rush it. But another year for HEVC to gain.

Let's just hope Apple hold off HEVC for another year.
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Old 7th February 2017, 04:25   #178  |  Link
hajj_3
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It is good they didn't rush it. But another year for HEVC to gain.
No-one is adopting h265. Only broadcast and ultra hd bluray are using it. Almost no digital cameras record in h265 even though there have been hardware encoders for years for mobile devices. AV1 shall be the king for many years on the web. We really could do with safari adding support for vp9 though in the meantime.
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Old 15th February 2017, 12:29   #179  |  Link
Jamaika
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I post up to date links of development on github aomenc.c and aomanalyzer.c
https://github.com/mbebenita/aomanalyzer
https://github.com/brion/aomedia
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Old 15th February 2017, 19:19   #180  |  Link
Blue_MiSfit
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Originally Posted by hajj_3 View Post
No-one is adopting h265. Only broadcast and ultra hd bluray are using it. Almost no digital cameras record in h265 even though there have been hardware encoders for years for mobile devices. AV1 shall be the king for many years on the web. We really could do with safari adding support for vp9 though in the meantime.
Well... that's not really true. All the major OTT streaming providers are doing 4k using HEVC. It's a big deal to high end consumers because it enables HDR!
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