protected ArrayList findAudioSources(ICaptureGraphBuilder2 graphBuilder, IBaseFilter deviceFilter)
{
ArrayList sources = new ArrayList();
IAMAudioInputMixer audioInputMixer = deviceFilter as IAMAudioInputMixer;
if ( audioInputMixer != null )
{
// Get a pin enumerator off the filter
IEnumPins pinEnum;
int hr = deviceFilter.EnumPins( out pinEnum );
pinEnum.Reset();
if( (hr == 0) && (pinEnum != null) )
{
// Loop through each pin
IPin[] pins = new IPin[1];
int f;
do
{
// Get the next pin
hr = pinEnum.Next( 1, pins, out f );
if( (hr == 0) && (pins[0] != null) )
{
// Is this an input pin?
PinDirection dir = PinDirection.Output;
hr = pins[0].QueryDirection( out dir );
if( (hr == 0) && (dir == (PinDirection.Input)) )
{
// Add the input pin to the sources list
AudioSource source = new AudioSource( pins[0] );
sources.Add( source );
}
pins[0] = null;
}
}
while( hr == 0 );
Marshal.ReleaseComObject( pinEnum ); pinEnum = null;
}
}
// If there is only one source, don't return it
// because there is nothing for the user to choose.
// (Hopefully that single source is already enabled).
if ( sources.Count == 1 )
sources.Clear();
return( sources );
}
protected ArrayList findAudioSources(ICaptureGraphBuilder2 graphBuilder, IBaseFilter deviceFilter)
{
ArrayList list = new ArrayList();
if (deviceFilter is IAMAudioInputMixer)
{
IEnumPins pins;
int num = deviceFilter.EnumPins(out pins);
pins.Reset();
if ((num == 0) && (pins != null))
{
IPin[] ppPins = new IPin[1];
do
{
int num2;
num = pins.Next(1, ppPins, out num2);
if ((num == 0) && (ppPins[0] != null))
{
PinDirection output = PinDirection.Output;
num = ppPins[0].QueryDirection(out output);
if ((num == 0) && (output == PinDirection.Input))
{
AudioSource source = new AudioSource(ppPins[0]);
list.Add(source);
}
ppPins[0] = null;
}
}
while (num == 0);
Marshal.ReleaseComObject(pins);
pins = null;
}
}
if (list.Count == 1)
{
list.Clear();
}
return list;
}
