private Tuple <object, string, int> createAudioStream(ISampleGrabberCallbackSinkFactory aISampleGrabberCallbackSinkFactory, int aIndexCount)
{
object result = null;
int index = 0;
string lMediaType = "";
do
{
ISampleGrabberCallback lAACSampleGrabberCallback;
aISampleGrabberCallbackSinkFactory.createOutputNode(
MFMediaType_Audio,
MFAudioFormat_AAC,
out lAACSampleGrabberCallback);
if (lAACSampleGrabberCallback != null)
{
lAACSampleGrabberCallback.mUpdateNativeFullEvent += delegate
(uint aSampleFlags, long aSampleTime, long aSampleDuration, IntPtr aData, uint aSize)
{
if (s != null)
{
lock (s)
{
currentmillisecond = (int)(aSampleTime / (long)10000);
s.sendAudioData(currentmillisecond, aData, (int)aSize, aIndexCount);
}
}
};
var lSampleGrabberCallNode = lAACSampleGrabberCallback.getTopologyNode();
if (lSampleGrabberCallNode != null)
{
var mEncoderControl = mCaptureManager.createEncoderControl();
Guid lAACEncoder = new Guid("93AF0C51-2275-45d2-A35B-F2BA21CAED00");
IEncoderNodeFactory lIEncoderNodeFactory;
mEncoderControl.createEncoderNodeFactory(lAACEncoder, out lIEncoderNodeFactory);
if (lIEncoderNodeFactory != null)
{
var lSourceNode = mAudioSourcesComboBox.SelectedItem as XmlNode;
if (lSourceNode == null)
{
break;
}
var lNode = lSourceNode.SelectSingleNode("Source.Attributes/Attribute[@Name='MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_AUDCAP_SYMBOLIC_LINK']/SingleValue/@Value");
if (lNode == null)
{
break;
}
string lSymbolicLink = lNode.Value;
lSourceNode = mAudioStreamsComboBox.SelectedItem as XmlNode;
if (lSourceNode == null)
{
break;
}
lNode = lSourceNode.SelectSingleNode("@Index");
if (lNode == null)
{
break;
}
uint lStreamIndex = 0;
if (!uint.TryParse(lNode.Value, out lStreamIndex))
{
break;
}
lSourceNode = mAudioMediaTypesComboBox.SelectedItem as XmlNode;
if (lSourceNode == null)
{
break;
}
lNode = lSourceNode.SelectSingleNode("@Index");
if (lNode == null)
{
break;
}
uint lMediaTypeIndex = 0;
if (!uint.TryParse(lNode.Value, out lMediaTypeIndex))
{
break;
}
object lAudioSourceOutputMediaType;
mSourceControl.getSourceOutputMediaType(
lSymbolicLink,
lStreamIndex,
lMediaTypeIndex,
out lAudioSourceOutputMediaType);
object lAudioEncoder;
lIEncoderNodeFactory.createEncoderNode(
lAudioSourceOutputMediaType,
StreamingCBR,
75,
0,
lSampleGrabberCallNode,
out lAudioEncoder);
object lCompressedMediaType;
lIEncoderNodeFactory.createCompressedMediaType(
lAudioSourceOutputMediaType,
StreamingCBR,
75,
0,
out lCompressedMediaType);
mSourceControl.createSourceNode(
lSymbolicLink,
lStreamIndex,
lMediaTypeIndex,
lAudioEncoder,
out result);
if (result != null)
{
index = aIndexCount;
}
mCaptureManager.parseMediaType(lCompressedMediaType, out lMediaType);
}
}
}
}while (false);
return(Tuple.Create <object, string, int>(result, lMediaType, index));
}
