IAMTVTuner Interface (Windows CE 5.0)
This interface supports tuners with multiple input pins, to allow for multiple devices and multiple transmission types.
IAMTVTuner maps TV channels to specific frequencies through the IAMTuner::put_Channel and IAMTVTuner::AutoTune methods. These methods handle the details of the conversion so that the hardware driver receives an exact frequency. The TV Tuner filter supports worldwide tuning coverage.
Use this interface from an application to set TV channels and to get or set information about their frequencies, and to determine what analog video standards your TV tuner card supports.
In addition to the methods inherited from IAMTuner, this interface exposes the following methods.
| Method | Description |
|---|---|
| AutoTune | Scans for a precise signal on the channel's frequency. |
| get_AudioFrequency | Retrieves the current audio frequency. |
| get_AvailableTVFormats | Retrieves all the analog video TV standards that the tuner supports |
| get_ConnectInput | Retrieves the hardware tuner input connection. |
| get_InputType | Retrieves the input type. |
| get_NumInputConnections | Retrieves the number of TV sources plugged into the tuner filter |
| get_TVFormat | Retrieves the current analog video TV standard in use. |
| get_VideoFrequency | Retrieves the current video frequency. |
| put_ConnectInput | Sets the hardware tuner input connection. |
| put_InputType | Sets the tuner input type (cable or antenna). |
| StoreAutoTune | Saves the fine-tuning information for all channels. |
Remarks
You are responsible for implementing this interface. Windows CE does not include an implementation of the Tuner interfaces, just the necessary headers and class ids for you to use in your own implementation.
Requirements
OS Versions: Windows CE 5.0 Networked Media Device Feature Pack.
Header: strmif.h.
See Also
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