Windows Video Capture Device

This tutorial describes how to connect video capture devices to the OnSign TV WindowsPlayer.


  • OnSign TV Windows Player version 10 or higher
  • Using a VLC compatible video device
  • While installing VLC is not mandatory, is nice to have it for testing the capture device under VLC
  • Having successfully installed your video device card using the device manufacturer software and drivers

VLC is one of the most popular media players,  offering both a graphical interface and full command line for playback.

Although installing VLC on the player is not necessary, we recommend using it to test the correct operation of the capture device and to facilitate getting the configuration parameters.

Compatible Capture Devices

Any device compatible with VLC 3.0 can be used such as:

  • Capture to capture HDMI
  • WebCam or Camera
  • TV Tuner Card

Step-by-step configuration:

1 - Ensure that all necessary drivers for your capture card are correctly installed.

2 - To check if the drivers are correct, the capture device must be working correctly when using the software provided by the device manufacturer.

3 - Download and install VLC

4 - With the capture device installed and connected, open VLC and select:

  • Media -> Open Capture Device

5 - In Capture mode select "DircetShow" for video capture cards and WebCams; or TV - Digital for TV tuner card.

5 - Select Video device name from the menu:

6 - Click Show more options to see the parameters used for the selected device

7 - Copy the content shown in MRL to the Playback Media Resource Locator field

8 - Copy the parameters shown in Edit Options into the Playback Arguments within the OnSigTV VLC App.

    • Remove the symbol from ":" before each parameter
    • Use quotes to define parameters that contain space characters:
      • Example:
        • Parameters in VLC :dshow-vdev=HD Webcam C525 live-caching=300
        • Change parameters : dshow-vdev= "HD Webcam C525" live-caching=300
  • Take a look here to get to know more about VLC parameter options.


Other command examples:

Built-in webcam - This will usually be the default DirectShow device





TV Tuner

  • Use the tuner card manufacturer's software to find the frequency of each channel.
  • The channel width depends on the location and the specific Digital TV Standard used. In this example, we are setting the channel width to 6 MHz (or 6000 Hz).