QLab - Syphon virt screen - MadMapper: slow play on MacBook pro 2011

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Marat Korchemnyy

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Nov 3, 2013, 12:04:02 PM11/3/13
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Hi,

Please help me to find solution...

I'm using QLab - Syphon virt screen - MadMapper

on macbook pro 13" late 2011

for mapping 1028x768 footages (QT jpeg)

And video is not playing smoothly as if the power of my Mac is not enough

Is there any way to fix it?

Kelly Schmidt

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Nov 3, 2013, 1:11:24 PM11/3/13
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I've used a similar setup. iMac instead of MacBook. I've only found lag when using around 30 surfaces in MadMapper.

Can you give us more specs on your MacBook & setup? CPU / RAM / Harddrive Speed / Video file location

Try playing the video do the default surface via QLab, bypassing MadMapper. Does it still lag?
Try playing the video file in quicktime. Does it still lag?

Do you have other applications open? Try going to Applications > Utilities > Activity Monitor to see how much of your system is being used. This will tell you if your MacBook is the bottleneck if its something else.

Andy Lang

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Nov 3, 2013, 1:47:34 PM11/3/13
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On Sun, Nov 3, 2013 at 12:04 PM, Marat Korchemnyy <pikni...@gmail.com> wrote:
I'm using QLab - Syphon virt screen - MadMapper

on macbook pro 13" late 2011

for mapping 1028x768 footages (QT jpeg)

And video is not playing smoothly as if the power of my Mac is not enough


Hi Marat,

Unfortunately, you may have hit the nail on the head, that the Mac isn't powerful enough :-(

The 13" MacBook Pros are a bit of a misnomer, as they're Pro only in name and design, but not up to the same level of performance as the other Pros. They don't have dedicated graphics cards/memory, and instead only have the Intel integrated graphics. The Intel graphics have improved a lot lately, but trying to run QLab and MadMapper is going to be a real strain for integrated graphics.

In addition, are you running on an SSD, or is this the stock 5400 RPM hard drive? That will bottleneck things a lot for you, as well, and on a system like this, it's all going to add up to a little slower here, a little slower there, and suddenly, nothing plays back smooth.

You may be able to optimize a bit and get better performance by trying other video formats, optimizing your media size, etc, but it will always be a compromise, and if it's at all an option, getting a machine with better graphics hardware will make your life exponentially happier.

Best wishes,
Andy

Marat Korchemnyy

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Nov 4, 2013, 4:30:53 AM11/4/13
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Thanks for all,

I've just find that QLab pro has it's own Syphon server. It works fine and smoothly with madMapper…


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