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LAwLz

YouTube Starts Testing the New Cutting Edge Codec AV1

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Posted · Original PosterOP

av1-logo.png.02ad11b2d3bdc1e376f707da73960525.png

YouTube has added support for AV1!

 

 

What is AV1 you might ask?

Spoiler

 

It's a new video codec being developed by the Alliance for Open Media (AOMedia for short). AOMedia is a massive alliance consisting of ~40 companies all banding together to create the best possible video codec.

  • The goals are to beat HEVC in terms of compression (that is to say, the video files will be smaller, or look better at the same file size) by about 30%.
  • AV1 should be free to use both in terms of monetary cost (it won't cost anything to use it, unlike AVC/H.264 and HEVC/H.265) and licensing wise (you can use it however you want).
  • High performance in hardware - Since all the major chip makers have been involved in the making of the codec, it has been designed with future hardware in mind. As a result, it will be very fast and use very little power once hardware with support for it starts to appear.
  • Flexibility - It is designed to work well for low resolution, low quality clips all the way up to very high resolution and quality videos.
  • Support for all the latest and greatest technologies such as 12 bit color depth, wide color gamut, high frame rate, and so on.

 

Like I said earlier, about 40 companies are in the alliance and have pledged to implement support for it in their products. Some of the most noteworthy companies in the alliance are:

  • Google
  • Apple
  • Microsoft
  • Mozilla
  • Cisco
  • IBM
  • Nvidia
  • AMD
  • ARM
  • Intel
  • Realtek
  • Amazon
  • Facebook
  • Netflix
  • Adobe
  • BBC
  • Hulu
  • VLC
  • Vimeo

 

 

Anyway, Youtube now has support for it (if you turn it on over at TestTube).

You will need a browser which supports it too however. Currently the only two are Chrome 70 (the beta version) and Firefox 63 (the Firefox beta version, but you need to enable it in about:config).

 

Here is a playlist of videos which currently has an AV1 version available. Please note that AV1 is currently only used for the 480p versions of the videos because of performance issues. The AV1 files for other, higher resolutions exists, but they won't be served automatically.

I checked the Halo Infinite trailer and was kind of disappointed by the file sizes. The AV1 files are slightly larger than the VP9 files. However, Google says that they did this on purpose because the larger files are easier to decode, and right now they want to evaluate decoder performance.

 

Here are all the files for the Halo trailer:

Quote

format code  extension  resolution note
249          webm       audio only DASH audio   56k , opus @ 50k, 844.95KiB
250          webm       audio only DASH audio   74k , opus @ 70k, 1.10MiB
140          m4a        audio only DASH audio  128k , m4a_dash container, mp4a.40.2@128k, 2.10MiB
171          webm       audio only DASH audio  129k , vorbis@128k, 1.92MiB
251          webm       audio only DASH audio  146k , opus @160k, 2.15MiB
278          webm       256x144    144p   97k , webm container, vp9, 30fps, video only, 1.39MiB
160          mp4        256x144    144p  112k , avc1.4d400c, 30fps, video only, 839.41KiB
242          webm       426x240    240p  226k , vp9, 30fps, video only, 2.49MiB
133          mp4        426x240    240p  229k , avc1.4d4015, 30fps, video only, 1.56MiB
394          mp4        256x144    144p  278k , av01.0.05M.08, 30fps, video only, 1.38MiB
243          webm       640x360    360p  410k , vp9, 30fps, video only, 4.70MiB
134          mp4        640x360    360p  643k , avc1.4d401e, 30fps, video only, 4.22MiB
244          webm       854x480    480p  768k , vp9, 30fps, video only, 8.45MiB
135          mp4        854x480    480p 1237k , avc1.4d401f, 30fps, video only, 9.27MiB
396          mp4        640x360    360p 1388k , av01.0.05M.08, 30fps, video only, 5.74MiB
247          webm       1280x720   720p 1518k , vp9, 30fps, video only, 17.55MiB
136          mp4        1280x720   720p 2439k , avc1.4d401f, 30fps, video only, 18.95MiB
302          webm       1280x720   720p60 2656k , vp9, 60fps, video only, 29.14MiB
248          webm       1920x1080  1080p 2673k , vp9, 30fps, video only, 31.90MiB
397          mp4        854x480    480p 2756k , av01.0.05M.08, 30fps, video only, 10.44MiB
298          mp4        1280x720   720p60 4020k , avc1.4d4020, 60fps, video only, 33.11MiB
303          webm       1920x1080  1080p60 4423k , vp9, 60fps, video only, 52.21MiB
137          mp4        1920x1080  1080p 4505k , avc1.640028, 30fps, video only, 36.24MiB
299          mp4        1920x1080  1080p60 6781k , avc1.64002a, 60fps, video only, 61.06MiB
398          mp4        1280x720   720p 7096k , av01.0.05M.08, 30fps, video only, 23.31MiB
271          webm       2560x1440  1440p 8880k , vp9, 30fps, video only, 93.27MiB
308          webm       2560x1440  1440p60 13498k , vp9, 60fps, video only, 146.20MiB
399          mp4        1920x1080  1080p 17499k , av01.0.05M.08, 30fps, video only, 49.75MiB
313          webm       3840x2160  2160p 17865k , vp9, 30fps, video only, 230.82MiB
315          webm       3840x2160  2160p60 26694k , vp9, 60fps, video only, 355.36MiB
17           3gp        176x144    small , mp4v.20.3, mp4a.40.2@ 24k, 1.27MiB
36           3gp        320x180    small , mp4v.20.3, mp4a.40.2, 3.51MiB
18           mp4        640x360    medium , avc1.42001E, mp4a.40.2@ 96k, 8.51MiB
43           webm       640x360    medium , vp8.0, vorbis@128k, 11.98MiB
22           mp4        1280x720   hd720 , avc1.64001F, mp4a.40.2@192k (best)

 

I uploaded the 720p AV1 version of the Halo trailer if anyone wants to for example try playing it in VLC and see how it looks. Here is the download link.

 

 

Description from the AV1 Beta launch playlist:

Quote

The first videos to receive YouTube's AV1 transcodes.

 

Support for AV1 in MP4 within Media Source is available in Chrome 70, and Firefox Nightly builds newer than September 13 with the media.av1.enabled and media.mediasource.experimental.enabled prefs set.

 

Using a supported browser and choosing the 'Prefer AV1 for SD' setting on youtube.com/testtube, you should see AV1 used for these videos when playing less than 480p, switching to VP9 for higher resolutions.

 

At time of writing, these transcodes are encoded at a very high bitrate for decoder performance testing.

 

The videos selected here represent a large slice of content that YouTube users enjoy, from talking-head programs to popular music videos. We've chosen action videos featuring snow and water spray, as these tend to stress encoders and decoders alike. Animated footage and game captures (coming soon) provide a wider range of content, and we round out the set with some beautiful stuff straight from the makers of cinema cameras.

 

Just a few videos today, but our commitment to AV1 is strong, and we have ambitious goals for rolling out the new format. Look for AV1 transcodes on the videos from your favorite creators soon.

 

I am super excited to see progress on AV1 continue.

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Interesting, maybe we'll see streaming done using AV1 encoding in the future if it really does replace HEVC and H.264

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So could this codec replace most/all other video codecs one day? I wont need VLC player to play 9000 different formats? This is way overdue


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Posted · Original PosterOP
Just now, AntiTrust said:

So could this codec replace most/all other video codecs one day?

That's the idea, yes.

 

Chances are people won't go back and reencode all their old videos, so those old codecs will still be out there. But for new content hopefully we won't need more than AV1 for things like video on demand, streaming and so on.

 

There are also plans to develop a JPEG/GIF/PNG replacement based on AV1. They have experimented with it and it's already far superior to JPEG in terms of file size and quality.

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nvm it's about 1/3rd the size

 

 

How's quality vs file size compare to H.265? A side by side video would be cool


ƆԀ S₱▓Ɇ▓cs: i7 6ʇɥפᴉƎ00K (4.4ghz), Asus DeLuxe X99A II, GT҉X҉1҉0҉8҉0 Zotac Amp ExTrꍟꎭe),Si6F4Gb D🅾🅼🅸🅽🅰🆃🅾r PlatinUm, EVGA G2 Sǝʌǝᘉ5ᙣᙍᖇᓎᙎᗅᖶt, Phanteks Enthoo Primo, 3TB WD Black, 500gb 850 Evo, H100iGeeTeeX, Windows 10, K70 R̸̢̡̭͍͕̱̭̟̩̀̀̃́̃͒̈́̈́͑̑́̆͘͜ͅG̶̦̬͊́B̸͈̝̖͗̈́, G502, HyperX Cloud 2s, Asus MX34. פN∩SW∀S 960 EVO

Just keeping this here as a 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All I wish is for AV1 to have proper hardware acceleration support across a decent amount of hardware unlike VP9 did.

Also, I've been looking for fucking ages on what the audio bitrate is for the various format codes. 


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I wonder if this means the YouTube app on the Apple TV will no longer be crap. 


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2 minutes ago, Morgan Everett said:

I wonder if this means the YouTube app on the Apple TV will no longer be crap. 

The Apple TV probably follows the iOS layout of using the AVC video and MP4 audio.


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5 minutes ago, Dan Castellaneta said:

All I wish is for AV1 to have proper hardware acceleration support across a decent amount of hardware unlike VP9 did.

Also, I've been looking for fucking ages on what the audio bitrate is for the various format codes. 

What do you mean? Pretty much every mobile device, every Intel iGPU since Kaby Lake, the Raven's Ridge APUs, and Pascal from Nvidia all support VP9 decode. Considering how recent it is that's actually fairly decent.

 

Heck there's even some systems that have encode acceleration for VP9 which is just shocking considering one of the biggest complaints about it was encode complexity.

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1 minute ago, Sniperfox47 said:

What do you mean? Pretty much every mobile device, every Intel iGPU since Kaby Lake, the Raven's Ridge APUs, and Pascal from Nvidia all support VP9 decode. Considering how recent it is that's actually fairly decent.

 

Heck there's even some systems that have encode acceleration for VP9 which is just shocking considering one of the biggest complaints about it was encode complexity.

Maybe I'm just looking too forward or backward, but that's the thing: you need the literal latest when it's been around in the mainstream for a few years now, although as I said, I could be thinking too far back.


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41 minutes ago, Crunchy Dragon said:

Interesting, maybe we'll see streaming done using AV1 encoding in the future if it really does replace HEVC and H.264

Hopefully... but it seems like it is quite a bit more demanding to encode than x265 as of right now.


 

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3 minutes ago, WereCat said:

Hopefully... but it seems like it is quite a bit more demanding to encode than x265 as of right now.

That'll probably be improved down the road.

 

I like the idea of less space taken up without sacrificing quality though, as someone who's considering going into content creation, that is pretty tempting.

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1 minute ago, Crunchy Dragon said:

That'll probably be improved down the road.

 

I like the idea of less space taken up without sacrificing quality though, as someone who's considering going into content creation, that is pretty tempting.

Everything I encode I make to x265 or VP9... unless for some specific use where nothing else beside x264 is not supported.

But for live streaming I am very limited by my upload speed and I have to stay under 1250bitrate. x265/VP9/AV1 would significantly boost the image quality on those bitrates for the stream.


 

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1 minute ago, WereCat said:

x265/VP9/AV1 would significantly boost the image quality on those bitrates for the stream.

That's another consideration. Smaller streamers who can't afford the best internet to have high bitrates could also make use of this to have better quality streams instead of being limited to 480p or 720p.

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5 minutes ago, Crunchy Dragon said:

That's another consideration. Smaller streamers who can't afford the best internet to have high bitrates could also make use of this to have better quality streams instead of being limited to 480p or 720p.

But if you go over 480 or 720p you drastically limit your audience unless the server you're streaming to does live transcoding. 

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6 minutes ago, Crunchy Dragon said:

That's another consideration. Smaller streamers who can't afford the best internet to have high bitrates could also make use of this to have better quality streams instead of being limited to 480p or 720p.

522p 30FPS master race :D

Encoding to x265 saved me so much disk space, its unbelievable. But since I dont have a very beefy CPU for HEVC encode, I did only the important stuff and rest I encode with the Pascal NVENC x265 which is only doable in StaxRIP (AFAIK). Not as good as CPU x265 but its significantly faster to encode and I still got better quality than with a CPU x264 on a comparable bitrates (3000-4000 for 1080p video). 


 

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3 minutes ago, Sniperfox47 said:

But if you go over 480 or 720p you drastically limit your audience unless the server you're streaming to does live transcoding. 

Its not the resolution, its the bitrate.

You can stream at 4k if you want but if its anything than static images it will look a lot worse on the same bitrate that would be typicaly used for 720p streaming because the picture fidelity would get significantly worse as the compression would have to be a lot greater.


 

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32 minutes ago, Sniperfox47 said:

What do you mean? Pretty much every mobile device, every Intel iGPU since Kaby Lake, the Raven's Ridge APUs, and Pascal from Nvidia all support VP9 decode. Considering how recent it is that's actually fairly decent.

 

Heck there's even some systems that have encode acceleration for VP9 which is just shocking considering one of the biggest complaints about it was encode complexity.

My Core2Duo didn't, and VP9 was a considerable consideration for my upgrade.  Would have much preferred to have the ability to offload to the dGPU, but nope. 

Went from a Q9000 with 4 cores at 2.00 gigahertz solid to a 7700HQ with 4 cores at 2.8(when intels 'feels like it') jigahurts.  Wouldn't feels as con'ed if it were an upgrade that needed to happen b/c of CPU bicep flex rather than hipster CPU 'finesse' energy-saving landfill-filling blathering blatherskite weren't the principal reason.

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For some reason when I read the title I assumed it was being sarcastic xD well, I guess this is good.  It leaves me wondering where some other codecs fit into the "family" though, namely AVC, VP9, and Opus.  Are those just older versions in the same "line", or are they totally different?  Which if any of those were/are proprietary or charge some sort of fee to use?  I know Youtube has used (or can still if you set it to) AVC, and currently the "main" one is VP9... I wonder why Opus never caught on.  They were already using it for audio I believe, why not video too?  From what little I know, it too was supposed to be very high quality (better visuals per byte), and also totally free and open.

Edited by Ryan_Vickers
nvm I was confused
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3 minutes ago, Ryan_Vickers said:

For some reason when I read the title I assumed it was being sarcastic xD well, I guess this is good.  It leaves me wondering where some other codecs fit into the "family" though, namely AVC, VP9, and Opus.  Are those just older versions in the same "line", or are they totally different?  Which if any of those were/are proprietary or charge some sort of fee to use?  I know Youtube has used (or can still if you set it to) AVC, and currently the "main" one is VP9... I wonder why Opus never caught on.  They were already using it for audio I believe, why not video too?  From what little I know, it too was supposed to be very high quality (better visuals per byte), and also totally free and open.

Opus is an audio codec; AVC video and AAC audio is the default for every video until YouTube either converts it at a certain point in being viewed, if the video is at 1440p or higher, or you use the site's editing tools; then, VP9 and Opus kick in.


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14 minutes ago, Dan Castellaneta said:

Opus is an audio codec; AVC video and AAC audio is the default for every video until YouTube either converts it at a certain point or you use the site's editing tools; then, VP9 and Opus kick in.

Opus can also do video, I watched a rather lengthy explanation of how it works and how it's unique among codecs for not following the typical "key frame followed by frames that show what changed" paradigm (but that's besides the point).  As for the default, every video I've ever bothered to check has been using VP9

Edited by Ryan_Vickers
nvm this is wrong
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1 minute ago, Ryan_Vickers said:

Opus can also do video, I watched a rather lengthy explanation of how it works and how it's unique among codecs for not following the typical "key frame followed by frames that show what changed" paradigm (but that's besides the point).  As for the default, every video I've ever bothered to check has been using VP9

Hmm, strange that Opus can do video, although to be fair, the way Opus was made to begin with is pretty damn strange.

You probably watch a ton of videos that are in VP9; usually, older videos or videos with relatively low amounts of views and are new tend to be in the AVC/AAC setup.


Volume / Normalized 100% / 89% (content loudness 1.0dB)

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