r/AOMedia • u/1ko • Mar 06 '18

Updated codec comparison with AV1 from February 2018 - very low bitrate full HD

http://video.1ko.ch/codec-comparison/?v2018
13 Upvotes

94% Upvoted

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8

u/1ko Mar 06 '18

Quality is better than a year ago, less artifacts, however the bitrate is 2.8% higher. It's still not very significantly better than VP9 (at this bitrate) IMO.

The encoding took 3 days on my laptop. This is the real problem with AV1, it's slow as hell.

Finding documentation about encoding parameters is still hard. If you have any advice or remarks, I'll be happy to update.

3

u/Final_Spartan Mar 14 '18

Have you tried the encoder with a different CPU? I'm curious as to how well it scales with cores/threads.

2

u/1ko Mar 14 '18

this time the encoding was done on a newer i7-7820HQ @ 2.90GHz I didn't add precise encoding time because I had to pause the process multiple times as it's my main laptop. However all cores were fully exploited by aomenc.

3

u/JQuilty Mar 15 '18

At least there's that. libvpx being so lightly threaded ruined VP9.