IAMTVTuner interface controls a TV tuner. The TV Tuner filter implements this interface. Applications can use this interface 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.
The interface supports tuners for analog broadcast television and AM/FM radio. It supports tuners with multiple input pins, to enable multiple devices and multiple transmission types. The TV Tuner filter supports worldwide tuning coverage. It 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 IAMTVTuner interface has these methods.
|IAMTVTuner::AutoTune||The AutoTune method scans for a precise signal on the channel's frequency.|
|IAMTVTuner::get_AudioFrequency||The get_AudioFrequency method retrieves the currently tuned audio frequency.|
|IAMTVTuner::get_AvailableTVFormats||The get_AvailableTVFormats method retrieves all the analog video TV standards that the tuner supports.|
|IAMTVTuner::get_ConnectInput||The get_ConnectInput method retrieves the hardware tuner input connection.|
|IAMTVTuner::get_InputType||The get_InputType method retrieves the input type set in IAMTVTuner::put_InputType.|
|IAMTVTuner::get_NumInputConnections||The get_NumInputConnections method retrieves the number of TV sources plugged into the tuner filter.|
|IAMTVTuner::get_TVFormat||The get_TVFormat method retrieves the current analog video TV standard in use.|
|IAMTVTuner::get_VideoFrequency||The get_VideoFrequency method retrieves the current video frequency.|
|IAMTVTuner::put_ConnectInput||The put_ConnectInput method sets the hardware tuner input connection.|
|IAMTVTuner::put_InputType||The put_InputType method sets the tuner input type (cable or antenna).|
|IAMTVTuner::StoreAutoTune||The StoreAutoTune method saves the fine-tuning information for all channels.|
|Minimum supported client||Windows 2000 Professional [desktop apps only]|
|Minimum supported server||Windows 2000 Server [desktop apps only]|
|Header||strmif.h (include Dshow.h)|