AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
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Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
#2It’s pretty amazing people are still finding ways to make video smaller.
Is this just people being clever or is it also more processing power being thrown at the problem when decoding / encoding?
Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
#3All this high speed fiber for nothing...
Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
#4It’s pretty amazing people are still finding ways to make video smaller. Is this just people being clever or is it also more processing power being thrown at the problem when decoding / encoding?
I believe patents play a big role here as well. Anything new must be careful to not (accidentally) violate any active patent, so there might be some tricks that can't currently be used for AV1/AV2
Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
#5It’s pretty amazing people are still finding ways to make video smaller. Is this just people being clever or is it also more processing power being thrown at the problem when decoding / encoding?
It’s more money and more user’s compute being thrown at the problem to get the streaming service’s CDN bill down.
Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
#6All this high speed fiber for nothing...
well we might start streaming 8K content ! Or maybe this could be used for 16K VR videos
Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
#7It’s pretty amazing people are still finding ways to make video smaller. Is this just people being clever or is it also more processing power being thrown at the problem when decoding / encoding?
A bit of both. Also, the modern Codecs have slightly different tradeoffs (image quality (PSNR, SSIM), computational complexity (CPU vs DSP vs Memory), storage requirements, bit rate) and therefore there isn't one that is best for every use case.
Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
#8Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
#9We must be reaching the limit at which video codecs can only achieve better quality by synthesizing details. That's already pretty prevalent in still images - phone cameras do it, and there are lots of AI resizing algorithms that do it.
It doesn't look like AV2 does any of that yet though fortunately (except film grain synthesis but I think that's fine).
Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
#1030% over AV1 is crazy, it doesn't feel too long since AV1 released but that was in 2019.