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VGA2PCIe image

VGA2PCIe

Frequently Asked Questions

  1. What PCI interface is needed for VGA2PCIe?
  2. How can I verify whether my system has PCIe?
  3. How many frames per second can VGA2PCIe capture?
  4. Does VGA2PCIe reduce the resolution of the images it captures in order to transfer it over PCIe?
  5. Can VGA2PCIe work on Windows NT, Windows 3.x/95/98/SE/ME?
  6. The video mode that I am using is not listed in the list of supported modes for VGA2PCIe. Can VGA2PCIe capture it?
  7. What Linux kernel does VGA2PCIe support? Is the driver's code open source?
  8. Can VGA2PCIe save captured signals as a movie?
  9. Which AVI codec works best with VGA2PCIe?
  10. Images grabbed from some sources appear to be slightly shifted right or left. How this can be fixed?
  11. Can I connect two or more VGA2PCIe devices to one computer and capture signals simultaneously? What is the resulting rate of capture for each VGA2PCIe?
  12. With what software can I interpret the digital signal generated by the VGA2PCIe device?
  13. Does the frame compression on VGA2PCIe hamper the quality of the output?
  14. Is VGA2PCIe software compatible with Mac OS?

1. What PCI interface is needed for VGA2PCIe?

The VGA2PCIe is compatible with PCI Express (PCIe) 1.1 or higher interface. It uses 1 (1x) lane interface.

2. How can I verify whether my system has PCIe?

Nearly every recently made PC or MAC since 2007 comes with PCI Express support. Please refer to your motherboard specifications to see if it has support for PCIe 1.1.

3. How many frames per second can VGA2PCIe capture?

It depends on the resolution of your screen, the screen refresh rate, your operating system and the speed of the computer that is acquiring images. Please consult the Specifications for appropriate capture rates.

4. Does VGA2PCIe reduce the resolution of the images it captures in order to transfer it over the PCIe bus?

No. VGA2PCIe captures and transfers every pixel of the original VGA frame in RGB24 format. VGA2PCIe may optionally perform on-the-fly color-space conversion before transferring the image over PCI Express. In this respect, VGA2PCI provides better quality than a VGA-to-video converter paired with a Composite or S-Video grabber.

5. Can VGA2PCIe work on Windows NT, Windows 3.x/95/98/SE/ME?

No. Unfortunately, some of those systems have very poor support or no support at all for PCI Express.

6. The video mode that I am using is not listed in the list of supported modes for VGA2PCIe. Can VGA2PCIe capture it?

Yes. You may add custom modes through the VGA2PCIe software, available as a free download.

7. What Linux kernel does VGA2PCIe support? Is the driver's code open source?

The Linux drivers are still under development. Please contact us ahead of purchase if you require a driver compiled for a specific kernel version or kernel setting.

8. Can VGA2PCIe save captured signals as a movie?

Yes, the VGA2PCIe application has the ability to save captured signals as an AVI file. Refer to #12 for more info.

9. Which AVI codec works best with VGA2PCIe?

The choice of codec and codec settings depend on the requirements for the quality of the AVI. You may need to try several codecs with different settings to see which codec best fits your task.

10. Images grabbed from some sources appear to be slightly shifted right or left. How this can be fixed?

VGA2PCIe has an automatic algorithm that crops visible images from the VGA frame. The algorithm may make a mistake, however, and be off by a few pixels. Please refer to Configuring Image Adjustments in section 18 of the Frame Grabber User Guide.

11. Can I connect two or more VGA2PCIe devices to one computer and capture signals simultaneously? What is the resulting rate of capture for each VGA2PCIe?

Yes you can connect two or more VGA2PCIe devices and capture multiple signals simultaneously. You will need to run the VGA2PCIe application for each VGA2PCIe device attached.

12. With what software can I interpret the digital signal generated by the VGA2PCIe device?

The VGA2PCIe frame grabber works by emulating a high resolution video camera for Windows. VGA2PCIe is a DirectShow compatible device, which means that virtually any video capture software designed for Windows is compatible with VGA2PCIe. For example, VirtualDUB can be used to record .avi files, Microsoft Media Encoder to record .wmv files, and RealProducer to record .rm files. VGA2PCIe also supports QuickTime in Mac OS X and Video4Linux in Linux operating systems.

13. Does the frame compression on VGA2PCIe hamper the quality of the output?

No. VGA2PCIe devices do not use frame compression, resulting in a high quality of the output.

14. Is VGA2PCIe software compatible with Mac OS X?

Yes. VGA2PCIe is compatible with Mac OS X 10.4 and up. Drivers and software can be downloaded from VGA2PCIe download page.