IAMTVTuner
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IAMTVTuner interface

The 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.

Members

The IAMTVTuner interface inherits from IAMTuner. IAMTVTuner also has these types of members:

Methods

The IAMTVTuner interface has these methods.

MethodDescription
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.

 

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Strmif.h (include Dshow.h)

Library

Strmiids.lib

See also

IAMTuner
Analog Television

 

 

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