Use this command to select the source for the video input. The dialog's interface and options will depend on the video driver selected in the Video Preferences.
If the current driver is Video For Windows (VFW) or DirectShow (WDM), the Video Source dialog is provided by the manufacturer of the driver. For more details, consult the manufacturer's documentation that came with your capture card.
If you have any other video driver selected in the Video Preferences, click the corresponding link below: