6 ms·

>Not to mention that on Youtube (a Google site) 1080p video uses 1% CPU in Safari while 720p video in Chrome (a Google browser) manages to use 80% CPU. This is

by Jerry2 10y ago

>Not to mention that on Youtube (a Google site) 1080p video uses 1% CPU in Safari while 720p video in Chrome (a Google browser) manages to use 80% CPU. This is because Google/YouTube is pushing VP9 streams when they detect that you're using Chrome. It saves them few megs on bandwidth (over H.264) but you suffer for it because VP9 is not hardware accelerated so it chews through your CPU and makes your system less responsive. YouTube/Google also doesn't allow you to set your preference for H.264. It's irresponsible for Google to waste so much electricity for everyone who uses Chrome.

dragonwriter 10y ago
> This is because Google/YouTube is pushing VP9 streams when they detect that you're using Chrome. It saves them few megs on bandwidth (over H.264) but you suffer for it because VP9 is not hardware accelerated VP9 can be hardware accelerated, and AFAIK current Chrome supports hardware acceleration for VP9 with hardware that supports it.
- MBCook 10y ago
  Are there any normal desktops/laptops that support it? I'd be amazed if anything other than Chromebooks and Android had it.
  - dragonwriter 10y ago
    > Are there any normal desktops/laptops that support it? From what I've been able to find: NVidia Pascal has full hardware decoding for VP9, as does the NVidia GM206. And Intel's (now shipping, but not in consumer hands yet until probably next month, IIRC) Kaby Lake has full hardware decoding support, too. (A lot more existing GPUs have hybrid support, but that's still got a CPU cost.)
    - MBCook 10y ago
      Interesting. Given basically everyone but Google is happy with H.264 I'm surprised they would bother.
      - dragonwriter 10y ago
        > Given basically everyone but Google is happy with H.264 I'm surprised they would bother. Well, YouTube alone is something like 1/6 of internet traffic, and probably a sizable amount of the time people spend on the internet. And everyone besides Google isn't happy with H.264, either. While it's true that Google is the main source of VP9, Netflix 4K is, IIRC, H.265-only (for which hardware acceleration is becoming more common just as it is for VP9).
- Jerry2 10y ago
  Can and is are two very different things. My brand new Nvidia GPU doesn't support it. Neither does iGPU. I'd wager that 99% of devices in use don't support HW decoding of VP9. Which means that Google is wasting tons of electricity by pushing their own codec. That's not good for the environment and for global warming. Extremely irresponsible.

by Jerry2 10y ago

dragonwriter 10y ago

> This is because Google/YouTube is pushing VP9 streams when they detect that you're using Chrome. It saves them few megs on bandwidth (over H.264) but you suffer for it because VP9 is not hardware accelerated VP9 can be hardware accelerated, and AFAIK current Chrome supports hardware acceleration for VP9 with hardware that supports it.

MBCook 10y ago
Are there any normal desktops/laptops that support it? I'd be amazed if anything other than Chromebooks and Android had it.
- dragonwriter 10y ago
  > Are there any normal desktops/laptops that support it? From what I've been able to find: NVidia Pascal has full hardware decoding for VP9, as does the NVidia GM206. And Intel's (now shipping, but not in consumer hands yet until probably next month, IIRC) Kaby Lake has full hardware decoding support, too. (A lot more existing GPUs have hybrid support, but that's still got a CPU cost.)
  - MBCook 10y ago
    Interesting. Given basically everyone but Google is happy with H.264 I'm surprised they would bother.
    - dragonwriter 10y ago
      > Given basically everyone but Google is happy with H.264 I'm surprised they would bother. Well, YouTube alone is something like 1/6 of internet traffic, and probably a sizable amount of the time people spend on the internet. And everyone besides Google isn't happy with H.264, either. While it's true that Google is the main source of VP9, Netflix 4K is, IIRC, H.265-only (for which hardware acceleration is becoming more common just as it is for VP9).
Jerry2 10y ago
Can and is are two very different things. My brand new Nvidia GPU doesn't support it. Neither does iGPU. I'd wager that 99% of devices in use don't support HW decoding of VP9. Which means that Google is wasting tons of electricity by pushing their own codec. That's not good for the environment and for global warming. Extremely irresponsible.