IAMTVTuner Interface (Compact 2013)

3/26/2014

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 Embedded Compact does not include an implementation of the Tuner interfaces, just the necessary headers and class id's for you to use in your own implementation.

Requirements

Header	dshow.h, strmif.h
Library	Strmiids.lib

See Also

Reference

DirectShow Interfaces