IWMEncVideoSource2 Interface
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The IWMEncVideoSource2 interface manages the live video image, including its dimensions and pixel aspect ratio, and specifies the properties when using a TV-tuner capture card. Windows Media Encoder works with most capture devices that have Video for Windows (VFW) or Windows Driver Model (WDM) drivers. For a current list of supported audio and video capture cards, see the hardware providers page at the Microsoft Web site.
In addition to the methods inherited from the IWMEncSource and IWMEncVideoSource interfaces, the IWMEncVideoSource2 interface exposes the following properties and method.
| Property | Description |
| Channel | Specifies and retrieves the television channel number for a TV-tuner capture card. |
| ChannelMax | Retrieves the highest available channel when using a TV tuner capture card. |
| ChannelMin | Retrieves the lowest available channel when using a TV tuner capture card. |
| Country | Specifies and retrieves the country/region code for a TV-tuner capture card. |
| Duration | Retrieves the duration of the video input file. |
| Height | Specifies and retrieves the height of a live video image. |
| Input | Specifies and retrieves the type of input for a TV-tuner capture card. |
| PixelAspectRatioX | Specifies and retrieves the x value of the pixel aspect ratio. |
| PixelAspectRatioY | Specifies and retrieves the y value of the pixel aspect ratio. |
| PreProcessPass | Specifies and retrieves the preprocess pass count. |
| TVFormat | Specifies and retrieves a value indicating the TV format used by a TV-tuner capture card. |
| TVType | Specifies and retrieves a value indicating whether the TV-tuner capture card uses cable or antenna reception. |
| Width | Specifies and retrieves the width of a live video image. |
| Method | Description |
| EnumerateInputs | Retrieves the collection of available inputs for the TV tuner capture card. |
See Also