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Old 9th January 2017, 13:17   #141  |  Link
leonccyiu
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Does anyone have any idea as to how much longer it'll take for the av1 format to be frozen and how much work still needs to be done?
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Old 9th January 2017, 14:18   #142  |  Link
Clare
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Originally Posted by leonccyiu View Post
Does anyone have any idea as to how much longer it'll take for the av1 format to be frozen and how much work still needs to be done?
Quote:
When will the codec ship? The group is aiming to freeze the bitstream sometime between the end of the 2016 and March 2017. Expect to see browser-based support soon thereafter, with the first hardware support within 12 months after that.
http://www.streamingmedia.com/Articl...ec-110383.aspx

Although I'm personally skeptical about these delays.
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Old 9th January 2017, 14:40   #143  |  Link
mzso
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Does anyone have any idea as to how much longer it'll take for the av1 format to be frozen and how much work still needs to be done?
Doubt that anyone will give anything other then guesses. They don't provide any information whatsoever on their progress or state of the codec.

So only someone within could give any information. I don't think there's anyone on this forum besides jmvalin who has any sort of attachment to AV1.
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Old 10th January 2017, 21:34   #144  |  Link
Mr.Radar
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Originally Posted by leonccyiu View Post
Does anyone have any idea as to how much longer it'll take for the av1 format to be frozen and how much work still needs to be done?
The last public update on AV1 I'm aware of is from Netflix's forum on royalty-free video codecs back in October which mentioned a target of "H1 2017" for freezing the bitstream. A talk giving a new status update on AV1 is scheduled for FOSDEM in early February which should hopefully provide a bit more detail.

Last edited by Mr.Radar; 10th January 2017 at 21:37.
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Old 15th January 2017, 11:06   #145  |  Link
VincAlastor
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Vanilla nightly builds for Win64, with high bit depth enabled. Should be able to output 8 / 10 / 12 bit av1. Encoder consumes too much RAM, so no 32bit build.
http://tmod.nmm-hd.org/aom/

Built daily if there are new commits. Old builds will be removed occasionally.

Also added av1 decoding (8/10/12 bit) for LAVFilters in http://tmod.nmm-hd.org/LAVFilters/ with latest libaom, thanks to Libav patches #61173 and #61174 and VFR-maniac's patch for LAVFilters. Both were somewhat modified and placed in patches folder.

BTW, the encoder seems not stable enough that 4K encoding usually causes crashes on windows, and even 720p 10-bit encoding results in abort trap 6 on OS X. Decoding with LAVFilters seems to be fine now, but further test is still needed.


for easier testing with logs and statistics i want to use a GUI. Is there already a GUI for aomenc.exe?
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Old 15th January 2017, 20:20   #146  |  Link
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@VincAlastor: I plan to add support for av1 to Hybrid shortly after I can playback such files in MPC-HC.
(got the general support working, but can't verify that everything is okay, since I can't decode the created files)
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Last edited by Selur; 15th January 2017 at 20:48.
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Old 16th January 2017, 10:39   #147  |  Link
VincAlastor
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Originally Posted by Selur View Post
@VincAlastor: I plan to add support for av1 to Hybrid shortly after I can playback such files in MPC-HC.
(got the general support working, but can't verify that everything is okay, since I can't decode the created files)
Thank you very much

i use the patched lavfilters as external filters in mpc-hc and seems to work very well, but not tested much for now.

Last edited by VincAlastor; 16th January 2017 at 10:51.
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Old 16th January 2017, 19:57   #148  |  Link
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I'll probably wait till it makes it into a nightly build of mpc-hc.
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Old 16th January 2017, 22:28   #149  |  Link
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Not as good as a gui but I create a batch file for my AV1 testing.

here the code if someone is interested ( only cpu-used and bitrate can be set ) :

for the encoder, you can drag and drop the file on the .bat icon or drag and drop when the bat is running. change the path to ffmpeg and aomenc if needed.

Code:
@echo off
Set file="%1"
if  "%1"==""   Set /p file="enter file to encode (or drag and drop )  = "
FOR /F %%I IN ("%file%") DO SET filename=%%~nI

set /p bitrate="bitrate ( enter = default 250K ) without the"K" = "
if  "%bitrate%"=="" set /a bitrate=250

set /p preset_AV1="AV1 Cpu-used (enter = 2) = "
if  "%preset_AV1%"=="" set preset_AV1=2

ffmpeg -i "%file%" -f yuv4mpegpipe - |  aomenc - --target-bitrate=%bitrate% -t 8 --good --cpu-used=%preset_AV1% --tile-columns=4   --passes=2 --pass=1 --fpf="%filename%.fpf"  -o "%filename%_av1.webm"

ffmpeg -i "%file%" -f yuv4mpegpipe - |  aomenc - --target-bitrate=%bitrate% -t 8 --good --cpu-used=%preset_AV1% --tile-columns=4   --passes=2 --pass=2 --fpf="%filename%.fpf"  -o "%filename%_av1.webm"
and for the decoder with mpv ( you can change to ffplay )
change the path to aomdec and mpv if needed.

Code:
:start
Set file=%1
if  "%1"==""   Set /p file="file to decode(drag and drop )  = "
aomdec "%file%" -o - | mpv.exe - --fs
goto start
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Old 17th January 2017, 03:56   #150  |  Link
littlepox
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It's simply too early to take a serious look at AV1 now. My own estimation would be 3 years, before it surpasses x264 for general ripping use-case. This includes decent playback support (perfect in PC platform and good enough for mobile), excellent visual quality(with comprehensive psy optimization, tuning, on a wide spectrum of bit-rate target) and affordable performance (including different levels of performance presets)

Even x265 is not completely there arguably.
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Old 17th January 2017, 07:40   #151  |  Link
nevcairiel
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I'll probably wait till it makes it into a nightly build of mpc-hc.
Which won't happen until av1 is officially finalized (ie. stable bitstream), and releases of libaom are made instead of just having Git master, sometime later this year, hopefully.
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Old 17th January 2017, 11:02   #152  |  Link
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Originally Posted by littlepox View Post
It's simply too early to take a serious look at AV1 now. My own estimation would be 3 years, before it surpasses x264 for general ripping use-case. This includes decent playback support (perfect in PC platform and good enough for mobile), excellent visual quality(with comprehensive psy optimization, tuning, on a wide spectrum of bit-rate target) and affordable performance (including different levels of performance presets)

Even x265 is not completely there arguably.
3yrs? pffft. Google and lots of other companies are working on this, development will be much faster than x265 has been. Hardware decoders for mobile will likely be ready in early 2018 and hardware decoders for pc in late 2018. I expect that in early 2019 the encoder will be good enough to replace x264, x265 and vp9.

Last edited by hajj_3; 17th January 2017 at 19:44.
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Old 17th January 2017, 11:46   #153  |  Link
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Yeah the next GPU Cycle should show a first introduction as well before that we might see Hybrid solutions already, with Volta there will be definitely some kind of Decoding support 100% on Nvidias side and it could be going straight to first Hardware without any Hybrid step this time at all
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Old 17th January 2017, 15:10   #154  |  Link
littlepox
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Playback compatibility is not a issue, as long as it remains open and hardware giants are evolved.
What the real challenge for ripping use-case is the visual quality optimization in transparent level, i.e, very high quality.
Optimization for benchmark is easy, for human eyes you really need to put in a lot of effort.
It takes 3 years for x265 to be there with x265 v2.0 as the milestone.

But still up to now, hardware support for HEVC main10 is poor and limited, and the tuning for x265 is incomplete. Majority still prefer x264 and I don't expect it changes within one year.

Let's see how AV1 progresses. Now it's still a lovely baby, may it grow up healthily.
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Old 18th January 2017, 12:01   #155  |  Link
wiak
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There was such a suggestion. Codec AOM replaces VP10, Daala, Thor, HEVC. Anyway what for they did to the alliance. VP10 disappears. I see that these are two paths of development, ie said Clare.

It can and is based on the codec vp10, just don't know it or not version a few months ago.
VP10 is the basis for AV1, but then they retrofitted daala/thor stuff into it, i suspect AOMedia AV2 will be a more daala lapping based codec. but thats for another time and place

TL;DR: VP10 + small parts of daala/thor = AV1
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Old 18th January 2017, 14:00   #156  |  Link
Jamaika
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This is not important, what is the basis? This may suggest that changing the name VPX on AOM. However, the contents of the files is very modified and you can no longer suggest that VP10 was base.
https://aomedia-review.googlesource.com/#/c/1008/
As regards Daala. The truth is that a handful of fixes is like one bigger patch to month. I'm afraid that Daala will not have a significant effect on the development of AV2. Unless, development Daala is out of open source technologies.

Last edited by Jamaika; 18th January 2017 at 14:04.
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Old 19th January 2017, 21:35   #157  |  Link
Quikee
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Latest presentation about AV1 (mainly daala tech.) at LCA2017: https://www.youtube.com/watch?v=lzPaldsmJbk

AV1 bitstream freeze will be in October 2017
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Old 20th January 2017, 03:31   #158  |  Link
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Latest presentation about AV1 (mainly daala tech.) at LCA2017: https://www.youtube.com/watch?v=lzPaldsmJbk

AV1 bitstream freeze will be in October 2017
So that is a further delay. Looking likely to see it pushed into 2018.
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Old 20th January 2017, 13:42   #159  |  Link
Quikee
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So that is a further delay. Looking likely to see it pushed into 2018.
Well.. that's the first delay (for AV1). First deadline wasn't really realistic considering that most of the experiments didn't play together yet (VP10 experiments - the nextgen2 branch was merged not too long ago) and some experiments aren't in a state to evaluate them (PVQ).
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Old 21st January 2017, 11:54   #160  |  Link
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Apart from the Mobile space then i see Intel and Nvidia with first Hardware ready in late 2018.
Lot of time for HEVC to flourish tough and x265 to further improve it's overall Psy Layer if the acceptance for H.264 still stays high enough it could go well if x264 by then gets overrolled @ 4K completely it will be much harder and progress on H.266 is also gonna start with a total Psy focus, though well still have to see how Trump will impact all of this.
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