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    4 Video Playback Question

    How To... ?
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    • Fred
      Fred @craigw last edited by Fred

      @craigw ok, so the d300 is a pretty small card but should be able to handle this. I had 3 full hd videos with scenes that were crossfading to another set of 3 full hd on a MacBook Pro with a 2 gig gfx card with Isadora 2.5 and it was fine, so spec wise it may be tight but ok.

      I would go for ProRes (that is what I used in the above scenario), the frames are compressed but much easier to decode the h264, bigger files but easier on the system.

      When using ProRes or h264 the playback engine should be avfoundation, not quicktime, can you check that with your movie player?

      The only thing I can think of is, there is something eating resources on your machine, or the compression is messing with the decode, or these trashcan had a serious design flaw and get very early thermal throttling, there was a quiet recall for those who pushed it to apple. If you use some kind of GPU profiler when you run Isadora that may give you a clue.

      One other things that made a big difference is refresh rates. Make sure all your outputs have the same refresh rate even your control screen, so if one is 25p all screens and outputs are 25p or whatever refresh your videos are.

      Also try change the general service task settings.

      http://www.fredrodrigues.net/
      https://github.com/fred-dev
      OSX 10.15.15 MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
      Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD
      Windows 10 Threadripper 3960x 64g ram, 1tb NVME, rtx 2080ti + rtx2070 super

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      • mark
        mark last edited by

        Dear @craigw 

        I've just read through all this and certainly it is mystifying. You're aware of the issue of running Adobe Creative cloud right? This absolutely needs to be turned off if, by some chance, you have it installed on the computer and it is running.

        But when you say the frame rate goes down to 16fps, that really indicates something is "rotten in Denmark." I mean, I can play 4 x 1080p HD Apple Pro Res 422 on my laptop (though, granted, it's not to four separate monitors.)

        Have you read this KB article about configuring your monitors? If Isadora were unable to work with one OpenGL context, that might cause the problems you are seeing. One important test: Go to Isadora Preferences > Video > OpenGL and check the Disable Vertical Retrace Sync checkbox. Does that change the frame rate or other issues you have?

        If not, then I would follow up on @Fred's comments about the monitor refresh rate. In addition, I would also ask you to try is to add one monitor at a time, to find out if it's fine with two but not with three, etc. This would 

        If you switch to Stage Preview, does it change the behavior and smoothness?

        What happens if you switch to the Control Panel view – i.e., hide the actors by typing Command-Shift-C. Does that change anything?

        Silly question since you tried this on multiple computers, but is your computer dirty on the inside? (On my laptop this summer, plugging in an external monitor decreased the frame rate to 5fps... turns out the inside of my machine was filthy and it was overheating. Once I had it cleaned by a pro, it was all fine again, knock wood.)

        Finally, you say "This is my show computer so I can't update it to 2.6.1 until the bugs are flushed out." Currently, there are no serious bugs that we know about. I have a couple of minor things, but they wouldn't affect movie playback anyway. I would encourage you to at least try v2.6.1 (keeping v2.5.2 on your machine) if only so you can tell us if it behaves differently.

        I hope one of the suggestions above will help. Please let us know.

        Best Wishes,
        Mark

        Media Artist & Creator of Isadora
        Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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        • craigw
          craigw last edited by

          Thanks Mark, In the past I did all those suggestions, It's been awhile though so I'll go through them again.

          OS 10.15.7 Catalina 2017 MacPro, 32g Ram ,AMD FirePro D700 6144 MB. Isadora v3.2.5 Los Angeles CA

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          • craigw
            craigw last edited by

            I was using another Izzy file with no video and 12-15 picture players. Frame Rate was down to 8fps with 44 cycles and very sluggish to use. I started deleting things, I deleted the 3 Gaussian Blurs and it went back up to 60fps and 775 cycles.

            OS 10.15.7 Catalina 2017 MacPro, 32g Ram ,AMD FirePro D700 6144 MB. Isadora v3.2.5 Los Angeles CA

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            • DusX
              DusX Tech Staff last edited by

              Where the Gaussian blurs, gpu or cpu?

              If cpu, its very possible that your cpu was at max usage. (check in activity monitor)

              if gpu based, you may have maxed your gpu memory or over heated. I would suggest looking for a gpu monitoring tool (I use GPUz on PC, sorry I don't know a mac tool off hand)

              Troikatronix Technical Support

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              Running: Win 10 64bit, i7-8750H, M.2 PCIe SSD's, 16gb DDR4-2666, nVidia GTX 1070 | located in Ontario Canada.

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              • mark
                mark @craigw last edited by

                @craigw said:

                I deleted the 3 Gaussian Blurs and it went back up to 60fps and 775 cycles.

                Well, there's no way around this fact: blurs are  computationally intensive even for the GPU. If they 12 pictures were very high res I can see that the Gaussian Blur might cause this problem, even if it was GPU. Still, it would be good to know the resolution of the images and if you were using CPU or GPU gaussian blur, just so we have a sense of what went wrong here.

                Best Wishes,
                Mark

                Media Artist & Creator of Isadora
                Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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                • craigw
                  craigw last edited by

                  Hi, It's the GPU version of Gaussian blur. Most of the pics were 1920x1080 jpegs, some were 1920x1080 pngs with an alpha.

                  OS 10.15.7 Catalina 2017 MacPro, 32g Ram ,AMD FirePro D700 6144 MB. Isadora v3.2.5 Los Angeles CA

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                  • craigw
                    craigw last edited by

                    Oh, I did update the computer to 2.6.1 also and no change.

                    OS 10.15.7 Catalina 2017 MacPro, 32g Ram ,AMD FirePro D700 6144 MB. Isadora v3.2.5 Los Angeles CA

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                    • craigw
                      craigw last edited by

                      I'm starting to see a big powerful PC in my future.

                      OS 10.15.7 Catalina 2017 MacPro, 32g Ram ,AMD FirePro D700 6144 MB. Isadora v3.2.5 Los Angeles CA

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                      • mark
                        mark @craigw last edited by

                        @craigw said:

                        Most of the pics were 1920x1080 jpegs, some were 1920x1080 pngs with an alpha.

                         So you're saying 12 to 15 instances of x 1920x1080 images going through the Gaussian Blur actor, yes?

                        I forgot to ask: what was the blur setting at? That's important... higher is slower for sure.

                        Best Wishes,
                        Mark

                        Media Artist & Creator of Isadora
                        Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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                        • craigw
                          craigw last edited by

                          No, only 1 pic per gaussian blur. So 3 pics and 3 Blurs.

                          OS 10.15.7 Catalina 2017 MacPro, 32g Ram ,AMD FirePro D700 6144 MB. Isadora v3.2.5 Los Angeles CA

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                          • mark
                            mark @craigw last edited by

                            @craigw said:

                            No, only 1 pic per gaussian blur. So 3 pics and 3 Blurs.

                             And the blur setting?

                            Media Artist & Creator of Isadora
                            Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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                            • craigw
                              craigw last edited by

                              Almost max blur.

                              So here's my time line. Opened the file. Heavy CPU load. Rebooted, same thing, heavy load. Deleted the gaussian blurs and all is good. Shut down computer for the day, started everything back up opened the same file that was giving me problems and now it's good. Aauugghh! So strange!

                              I keep this computer free of everything so its only duty is Isadora.

                              The activity monitor files attached are yesterdays bad, and todays good. The only change I see is the load from Isadora.

                              At this stage it's a mystery to me. Next time, would it help if I ran a spindump for more data collecting?

                              OS 10.15.7 Catalina 2017 MacPro, 32g Ram ,AMD FirePro D700 6144 MB. Isadora v3.2.5 Los Angeles CA

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