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How to Capture Streaming Video to your PC
This article explains how to capture streaming video to your PC and record it using DVI2USB 3.0– a frame grabber solution specially designed for capturing signal from a VGA, DVI or HDMI (non HDCP) video source. Standalone frame grabbers are an alternative to streaming capture cards. These solutions providing live capture are connected directly to the PC and do not require additional power supply. In this example the DVI2USB 3.0 USB 3 frame grabber is used.
This How To is for basic of capture from VGA, DVI and HDMI (non HDCP) video sources. For more information on how to capture VGA, DVI, HDMI and other video sources, please see How to Record VGA, DVI, HDMI and other video sources
Capture Hardware Required
You will need the following hardware before you start:
PC for Capturing DVI , VGA, or DVI output
A PC records streaming video content, monitors or cameras and directs the recording process via a software application.
DVI, VGA, HDMI Source
A source of DVI signal that will be recorded using DVI2USB.
A DVI cable connects a DVI output to DVI2USB.
DVI2USB 3.0 frame grabber will capture video signal and record it to the computer.
USB3 to USB Cable
A USB cable plugs into the USB 3 port of DVI2USB and connects it to the USB computer port. (note DVI2USB 3.0 supports USB 2 and USB 3 data uplinks. Please consult your capture computer hardware to determine which interface speed your computer will upload images. )
Steps below explain in details how to capture streaming video.
Step 1: Download DVI2USB application and drivers
Download DVI2USB application and drivers from the Epiphan Systems’ web site.
1. Browse to the main product page and select the DVI2USB product page.
2. Select the “Download” menu item.
3. Depending on the OS type installed on your PC click the appropriate command.
4. In the “File Download” window click “Open”.
5. Select a folder to save an application. The archive’s name (vga2usb-...) should not confuse you as this Epiphan software is suitable both for DVI and VGA frame grabbers.
6. Click “Save”.
7. Click “Open Folder”.
8. Click “Next”. Then select destination where the archive is extracted to and click “Next”. The files are extracted from the archive.
9. When the extraction is complete, click “Finish”. The folder with the extracted files is displayed.
10. Double-click the setup file in the folder.
11. Now you are ready to start the installer. Click “Next”.
12. Browse to the folder with the downloaded files and click “Next”. Confirm and start the installation.
13. Click “Continue Anyway”. The installation is complete.
Step 2: Connect and switch on hardware
Now you need to connect all necessary hardware using cables from the package.
1. Use the DVI cable to connect DVI2USB 3.0 to the VGA HDMI, DVI video source with the appropriate cable or adapters.
2. Connect the USB cable to DVI2USB 3.0. Then connect it to the computer.
3. Switch on both the computer and the video source. Your PC will detect the new equipment.
4. Start the New Hardware Wizard. The software is installed automatically.
Step 3: Streaming video capture
1. Click on Start > All Programs > VGA2USB. The frame grabber application starts.
2. Select “Options” from the “Tools” menu in the frame grabber application. Select the “Recording” tab.
3. Now specify that you capture video signal: set “Record as” to “Video” and click the “Select Codec…” button. For this application, Epiphan recommends using ffvfw MPEG-4 Codec for signal capture.
4. Now start streaming video on your DVI, VGA or HDMI source using the program’s interface.
5. Click the “Record” button.
6. Select the location for the recorded video file on your PC and click “Save”. The signal capture will not start unless you click “Save”.
7. To stop recording, click the “Record” button again.
As you have accurately performed all steps described above, you know now how to capture video to your PC. The file containing streaming video from your DVI source is recorded to a specified location on the computer.
Additional Information on Capturing Video to your PC
For more information on how to capture VGA, DVI, HDMI and other video sources, please see