IAMTVTuner Interface (Windows Embedded CE 6.0)

1/6/2010

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_Channeland 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 CE 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 strmif.h
Windows Embedded CE Windows CE 5.0 Networked Media Device Feature Pack and later

See Also

Reference

DirectShow Interfaces