The End of Video Coding?
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The End of Video Coding?
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Re: The End of Video Coding?
#2Pull quote:
We run compute on the cloud and have no real-time requirements. I was asked by the Chair, “How much complexity increase is acceptable?”
I was not prepared for the question, so did some quick math in my mind estimating an upper bound and said “At the worst case 100X.”
The room of about a hundred video standardization experts burst out laughing. I looked at the Chair perplexed, and he says,
“Don’t worry they are happy that they can try-out new things. People typically say 3X.” We were all immersed in the video codec space and yet my views surprised them and vice versa.
Re: The End of Video Coding?
#3Pull quote: We run compute on the cloud and have no real-time requirements. I was asked by the Chair, “How much complexity increase is acceptable?” I was not prepared for the question, so did some quick math in my mind estimating an upper bound and said “At the worst case 100X.” The room of about a hundred video standardization experts burst out laughing. I looked at the Chair perplexed, and he says, “Don’t worry the…
This makes entire sense to me: When you're going to stream the episode of Stranger things to 15million people, who really cares what the one-time cost to encode is? Surely you'd take algorithmic complexity that was 100x or even 1000x the baseline if it provided you with even a few kB of bandwidth savings?
Re: The End of Video Coding?
#4It seems to me that despite the tech, Netflix video quality is really horrible. Youtube is consistently much higher quality, even though Netflix's own "fast.com" tells me my connection is capable of 75Mbps downstream. Which should be enough for crisp 1080p. Multiple times I've been so frustrated with Netflix's quality that I've started a movie, stopped it because it looked like something out of a VCR, torrented the true 1080p version and watched that.
Re: The End of Video Coding?
#5Pull quote: We run compute on the cloud and have no real-time requirements. I was asked by the Chair, “How much complexity increase is acceptable?” I was not prepared for the question, so did some quick math in my mind estimating an upper bound and said “At the worst case 100X.” The room of about a hundred video standardization experts burst out laughing. I looked at the Chair perplexed, and he says, “Don’t worry the…
This makes entire sense to me: When you're going to stream the episode of Stranger things to 15million people, who really cares what the one-time cost to encode is? Surely you'd take algorithmic complexity that was 100x or even 1000x the baseline if it provided you with even a few kB of bandwidth savings?
Netflix is probably at the extreme end. Remember: the same codecs are used to compress the videos your cell phone takes.
Re: The End of Video Coding?
#6Pull quote: We run compute on the cloud and have no real-time requirements. I was asked by the Chair, “How much complexity increase is acceptable?” I was not prepared for the question, so did some quick math in my mind estimating an upper bound and said “At the worst case 100X.” The room of about a hundred video standardization experts burst out laughing. I looked at the Chair perplexed, and he says, “Don’t worry the…
This makes entire sense to me: When you're going to stream the episode of Stranger things to 15million people, who really cares what the one-time cost to encode is? Surely you'd take algorithmic complexity that was 100x or even 1000x the baseline if it provided you with even a few kB of bandwidth savings?
You still care, since at some point the cost of the extra encoder-hours used is going to outpace the bandwidth savings. I'm guessing she mentally assumed 'at no bandwidth savings, how much margin do we have?', since the amount saved wasn't ever quantified.
Re: The End of Video Coding?
#7A post about innovation and moving beyond block-based encoding and no mention of Daala's idea of lapped transforms?
Re: The End of Video Coding?
#8It seems to me that despite the tech, Netflix video quality is really horrible. Youtube is consistently much higher quality, even though Netflix's own "fast.com" tells me my connection is capable of 75Mbps downstream. Which should be enough for crisp 1080p. Multiple times I've been so frustrated with Netflix's quality that I've started a movie, stopped it because it looked like something out of a VCR, torrented the t…
Could it be your ISP is targeting and throttling Netflix? There's probably a way to verify this.
I tend to find the quality of HD Netflix streams pretty great over my PS4. Certainly never a cause to download a torrent instead.
Re: The End of Video Coding?
#9It seems to me that despite the tech, Netflix video quality is really horrible. Youtube is consistently much higher quality, even though Netflix's own "fast.com" tells me my connection is capable of 75Mbps downstream. Which should be enough for crisp 1080p. Multiple times I've been so frustrated with Netflix's quality that I've started a movie, stopped it because it looked like something out of a VCR, torrented the t…
Could it be your ISP is targeting and throttling Netflix? There's probably a way to verify this. I tend to find the quality of HD Netflix streams pretty great over my PS4. Certainly never a cause to download a torrent instead.
> Could it be your ISP is targeting and throttling Netflix? There's probably a way to verify this.
I believe fast.com is supposed to test against actual Netflix video delivery servers, just to detect this kind of ISP fuckery.
Re: The End of Video Coding?
#10I see this:
In the ITU-T VCEG and ISO/IEC MPEG standardization world, the
Joint Video Experts Team (JVET) was formed in October 2017 to
develop a new video standard that has capabilities beyond
HEVC. The recently-concluded Call for Proposals attracted an
impressive number of 32 institutions from industry and
academia, with a combined 22 submissions. The new standard,
which will be called Versatile Video Coding (VVC), is expected
to be finalized by October 2020.