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Firefox 80 To Support VA-API Acceleration On X11

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  • #41
    Originally posted by ernstp View Post

    Browsers have to convert the Video from YUV or whatever they get it in to RGB before displaying it, to be able to combine with media controls and other things they have. Native video players generally don't have to do that so the save a lot of processing.
    This is what the conversion looks like: https://en.wikipedia.org/wiki/YUV#HDTV_with_BT.709
    There's no way 9 multiplications and 6 additions need that much extra CPU time. Though back in the day, I remember Adobe complaining about YUV as well...

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    • #42
      But xOrG iS abAndoNEd

      144Hz

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      • #43
        Originally posted by 240Hz View Post
        But xOrG iS abAndoNEd

        144Hz
        Please don't. It's strange enough he stayed away so far, do you dislike 5 pages of readable posts that much?

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        • #44
          Sorry I missed the memo and I'm dumb as fuck. What this brings to the table? Just a bit of power efficiency for laptop users??
          Thanks
          Last edited by horizonbrave; 07-04-2020, 08:01 PM.

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          • #45
            Originally posted by DanL View Post
            Huh? What is fake hardware acceleration?
            If we are talking about an AMD video card or APU, then I would suspect that "real" hardware acceleration would leverage the capabilities of the onboard UVD.

            "Fake" hardware acceleration might be said to simply use the main GPU chip.

            To my knowledge(which is very limited here) the UVD is more efficient than than the GPU, and even vastly moreso than the CPU.
            Last edited by ezst036; 07-04-2020, 09:56 PM.

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            • #46
              Originally posted by ezst036 View Post

              If we are talking about an AMD video card or APU, then I would suspect that "real" hardware acceleration would leverage the capabilities of the onboard UVD.

              "Fake" hardware acceleration might be said to simply use the main GPU chip.

              To my knowledge(which is very limited here) the UVD is more efficient than than the GPU, and even vastly moreso than the CPU.
              This is about using libVA, which is hooked up to UVD on AMD chips and whatever hardware other drivers expose through it on their hardware. So yes, it's "real".

              I have no idea why this keeps coming up over and over again in all these articles. Are you the same person and just refusing to acknowledge the answers you're getting in each article? Or is this FUD spreading somehow?

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              • #47
                Originally posted by marco-c View Post

                As a user, what do you care about the market share? Why would you choose a browser based on its market share?
                Market share matters very much. More clout, more developers, more third party coders, more add-ons & extensions, more & better alpha & beta testing, etc. In case you did not noitice, poor market sharte means eventual death.

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                • #48
                  Originally posted by bug77 View Post
                  There's no way 9 multiplications and 6 additions need that much extra CPU time. Though back in the day, I remember Adobe complaining about YUV as well...
                  Well, let's have a look at your assertion: That is 15 floating point operations per pixel you show there. So you need 15*1920*1080*60 = 1 866 240 000 or approximately 2 GFLOPS just to do a simple YUV conversion on your CPU. For 4k video that will be 7½ GFLOPS...

                  Of course a real implementation will apply some tricks, but still... There is a reason why specialized hardware is a win when doing video conversions!
                  Last edited by Veto; 07-05-2020, 04:00 AM. Reason: Added 4k

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                  • #49
                    Originally posted by birdie View Post
                    Adobe Flash player
                    is not a browser. you could also list addons which download video and run mplayer
                    Originally posted by birdie View Post
                    then everyone rushed to kill off Flash
                    everyone including adobe itself. obviously they were wrong because they made birdie unhappy

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                    • #50
                      Originally posted by marco-c View Post
                      As a user, what do you care about the market share? Why would you choose a browser based on its market share?
                      it's the other way around. market share is a result of user choice. i.e. everyone already switched to chrome and improvements in firefox will not affect majority of users

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