public void TestTuningSpace()
{
int hr = 0;
int ts1, ts2;
hr = tuner.get_TuningSpace(out ts1);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(hr == 0, "IAMTVTuner.get_TuningSpace");
hr = tuner.put_TuningSpace(ts1 + 1);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(hr == 0, "IAMTVTuner.put_TuningSpace");
hr = tuner.get_TuningSpace(out ts2);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(ts2 == (ts1 + 1), "IAMTVTuner.get / put_TuningSpace");
}
/// <summary>
/// Performs a tuning to the given channel
/// </summary>
/// <param name="analogChannel">The channel to tune to</param>
public void PerformTune(AnalogChannel analogChannel)
{
if (_tuner == null || analogChannel == null)
{
throw new NullReferenceException();
}
if (analogChannel.IsTv)
{
SetFrequencyOverride(analogChannel);
}
if (_currentChannel != null)
{
if (analogChannel.IsRadio != _currentChannel.IsRadio)
{
if (analogChannel.IsRadio)
{
Log.Log.WriteFile("analog: set to FM radio");
_tuner.put_Mode(AMTunerModeType.FMRadio);
}
else
{
Log.Log.WriteFile("analog: set to TV");
_tuner.put_Mode(AMTunerModeType.TV);
}
}
if (analogChannel.Country.Id != _currentChannel.Country.Id)
{
_tuner.put_TuningSpace(analogChannel.Country.Id);
_tuner.put_CountryCode(analogChannel.Country.Id);
}
if (analogChannel.TunerSource != _currentChannel.TunerSource)
{
_tuner.put_InputType(0, analogChannel.TunerSource);
}
if (analogChannel.IsRadio)
{
if (analogChannel.Frequency != _currentChannel.Frequency)
{
_tuner.put_Channel((int)analogChannel.Frequency, AMTunerSubChannel.Default, AMTunerSubChannel.Default);
}
}
else
{
if (analogChannel.ChannelNumber != _currentChannel.ChannelNumber)
{
_tuner.put_Channel(analogChannel.ChannelNumber, AMTunerSubChannel.Default, AMTunerSubChannel.Default);
}
}
}
else
{
if (analogChannel.IsRadio)
{
Log.Log.WriteFile("analog: set to FM radio");
_tuner.put_Mode(AMTunerModeType.FMRadio);
}
else
{
Log.Log.WriteFile("analog: set to TV");
_tuner.put_Mode(AMTunerModeType.TV);
}
_tuner.put_TuningSpace(analogChannel.Country.Id);
_tuner.put_CountryCode(analogChannel.Country.Id);
_tuner.put_InputType(0, analogChannel.TunerSource);
if (analogChannel.IsRadio)
{
_tuner.put_Channel((int)analogChannel.Frequency, AMTunerSubChannel.Default, AMTunerSubChannel.Default);
}
else
{
_tuner.put_Channel(analogChannel.ChannelNumber, AMTunerSubChannel.Default, AMTunerSubChannel.Default);
}
}
_tuner.get_VideoFrequency(out _videoFrequency);
_tuner.get_AudioFrequency(out _audioFrequency);
_tunerLocked = false;
_currentChannel = analogChannel;
UpdateSignalQuality();
UpdateMinMaxChannel();
Log.Log.WriteFile("Analog: Tuned to country:{0} video:{1} Hz audio:{2} Hz locked:{3}", analogChannel.Country.Id,
_videoFrequency, _audioFrequency, _tunerLocked);
}
