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Having trouble with 6 ps3 camera recording
https://forum.ipisoft.com/viewtopic.php?f=5&t=6131		 Page 1 of 2
Author:  cosbovfx [ Wed Jun 20, 2012 11:06 am ]
Post subject:  Having trouble with 6 ps3 camera recording
I can't really determine why I can't get 60fps on 6 cameras @640x480. I have a 128gb SSD that is exclusively for Ipisoft capturing. I have bought 2 different USB controllers, + the built in controllers. But can't get 60FPS.

I did a clean install of XP pro 32bit, I had 64bit on, but it seems Ipisoft 2.0 does not support 64bit xp

My system is a HP XW6600

2 5430 quad xeons

8GB ram (only 3.25gb with 32bit)

GTS450 1GB

320gb system drive Mechanical

128gb SSD

1 belkin usb controller

1 Generic USB controller, Both Belkin and the Generic seem to be running the same USB controller chip.

The system has 7 USB2 ports 2 front 5 back

Attachments:
system.JPG
system.JPG [ 111.54 KiB | Viewed 28033 times ]
Author:  vmaslov [ Thu Jun 21, 2012 3:26 am ]
Post subject:  Re: Having trouble with 6 ps3 camera recording
Please provide more details about your issue.
Are you experiencing frame drops in 60fps mode?
If yes, do frame drops occur only while recording or in the preview also?
What is the maximum frame rate at which smooth recording is possible?

If you're experiencing frame drops, try disabling compression - select None for compression method at the Record stage.

Considering support for XP 64-bit. iPi Recorder 2 should work on all systems where .NET Framework 4 is installed, though we had not tested in XP 64 bit. Maybe you have installed only .NET Framework 4 for x86, and not for x64. If Recorder launches but does not show cameras, maybe it's WinUSB driver for PS Eye issue.
Author:  cosbovfx [ Thu Jun 21, 2012 5:36 am ]
Post subject:  Re: Having trouble with 6 ps3 camera recording
So when I launch ipi recorder 2 at the setup stage, I can only achieve 60fps @640x480 on two cameras, the rest of the cameras are red, and have a very low frame rate like 0-3fps, and produce dropped frames, and Bad frames, Actually they make more Bad frames then dropped frames. The Bad frame rate is quite high, anywhere from 5- 50+fps

I can record at 640x480@30, and can get 60fps @ 320x240.

It seems there is some sort of band width issue with the USB controllers, that is why I bought the additional controller.

Attachments:
record setup.JPG
record setup.JPG [ 211.78 KiB | Viewed 28028 times ]
Author:  cosbovfx [ Thu Jun 21, 2012 6:09 am ]
Post subject:  Re: Having trouble with 6 ps3 camera recording
When I tried to install Ipi recorder on Xp64, the installer would not launch, it said that Service Pack 3 is required. From what I can tell MIcrosoft is never going to make a SP3 for XP64.
Author:  vmaslov [ Thu Jun 21, 2012 1:27 pm ]
Post subject:  Re: Having trouble with 6 ps3 camera recording
cosbovfx wrote:
When I tried to install Ipi recorder on Xp64, the installer would not launch, it said that Service Pack 3 is required. From what I can tell MIcrosoft is never going to make a SP3 for XP64.

Indeed, for XP, SP3 is required to run our installer. And installer for .NET Framework 4 also has this requirement. So it seems .NET 4 is not supported on XP 64 bit, though I could not find a definite answer to this question.
Author:  cosbovfx [ Thu Jun 21, 2012 1:42 pm ]
Post subject:  Re: Having trouble with 6 ps3 camera recording
What are Bad frames? I can get 2 cameras to record 60fps @ 640x480, and the other 4 are recording 60fps, but they mostly bad frames (see picture). So it seems that my system can do the 640x480@ 60, Just not sure why 4 out of the 6 cameras are recording bad frames.

Attachments:
Bad Frames.JPG
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Author:  vmaslov [ Sat Jun 23, 2012 2:39 am ]
Post subject:  Re: Having trouble with 6 ps3 camera recording
Frame is considered bad when the camera signals it has a new frame, but does not supply (sufficient) data for it. Frame drops are detected when the camera does not signal a new frame for a reasonable time. Not near-zero values of any of these numbers usually mean there are USB bandwidth problems.
Try connect cameras one by one watching for statistics after each connected camera. If after connecting next camera you start getting bad statistics, reconnect this last camera to another USB port and watch again. And so on...
Author:  cosbovfx [ Sat Jun 23, 2012 1:18 pm ]
Post subject:  Re: Having trouble with 6 ps3 camera recording
So after doing some tests It seems that the USb Bandwidth is the issue.

From what I can tell in my system, I have 3 controllers for USB 2, The Motherboard has 1 controller, and the 2 USB2 PCI cards I have added make 3 total.

I tried plugging in one camera at a time watching the USB bandwidth.

It seems that each camera uses slightly less then 6% of USB bandwidth.

The Built in controller starts up with 15% Used.

The other 2 controllers each start up 10% Used.

I was able to get 2 Of the cameras to be able to record 640x480 @60fps while plugged into the Front ports of my system. Adding theses 2 cameras makes the onboard Controller bandwidth go to 27%, If I add another camera, the system can not handle 640x480@60fps, and it produces mostly bad frames.

So I thought that I should be able to plug 2 cameras into each of the remaining controllers.

So I tried 1 camera in each controller first, And this works perfectly. Each controllers bandwidth goes up to about 15%, and I am able to record 4 cameras 640x480@ 60FPS.

However neither controller will allow me to plugin an additional camera, and maintain 60FPS @640x480

Which I thought was weird, because the resulting bandwidth on the additional pci USB cards would only be 21% .

So, for now I have 4 cameras 640x480@60FPS, I plan on buying a PCI Express USB3 card and seeing if it will allow me to plugin 2 cameras, and maintain 640x480 60FPS.
Author:  vmaslov [ Sat Jun 23, 2012 2:12 pm ]
Post subject:  Re: Having trouble with 6 ps3 camera recording
I'm not sure the percentage of reserved controller's bandwidth is a good indicator. Besides controller's bandwidth, there may be other limitations, for example PCI bus bandwidth in case of PCI cards. Also, specific USB controllers have compatibility issues with cameras, and this may lead to bandwidth issues. General rule with PS Eye cameras is not more than 2 cameras on 1 USB controller.
Your decision to try PCIe USB controller seems a good idea.
Author:  cosbovfx [ Tue Jun 26, 2012 7:30 pm ]
Post subject:  Re: Having trouble with 6 ps3 camera recording
I bought and installed the PCIe USB3 card today, and that has solved the problem. I have the last 2 cameras plugged in the USB3 Card, and am now able to maintain 640x480@60fps, with 6 cameras.
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