public AudioRecorderViewModel(Microphone microphone, byte[] buffer, OpusRuntimeComponent opusComponent, Action <double> decibelValueChangedCallback, Action recordingStoppedCallback, Action recordingStoppedWithTimeoutCallback)
{
AudioRecorderViewModel recorderViewModel = this;
this._microphone = microphone;
this._buffer = buffer;
this._opusComponent = opusComponent;
this._decibelValueChangedCallback = decibelValueChangedCallback;
this._recordingStoppedCallback = recordingStoppedCallback;
this._asyncDispatcher = new XnaAsyncDispatcher((Action)(() =>
{
recorderViewModel._recordFinishTime = DateTime.Now;
TimeSpan timeSpan = recorderViewModel._recordFinishTime - recorderViewModel._recordStartTime;
recorderViewModel.RecordDurationStr = timeSpan.ToString(timeSpan.Hours > 0 ? "h\\:m\\:ss" : "m\\:ss");
recorderViewModel.RecordDuration = (int)timeSpan.TotalMilliseconds;
if (recorderViewModel.RecordDuration < AudioRecorderViewModel.GetMaxDuration())
{
return;
}
recorderViewModel.StopRecording();
Action action = recordingStoppedWithTimeoutCallback;
if (action == null)
{
return;
}
action();
}));
}
private void Microphone_OnBufferReady(object sender, EventArgs eventArgs)
{
int data = this._microphone.GetData(this._buffer);
int num1 = data / 1920;
this._stream.Write(this._buffer, 0, this._buffer.Length);
for (int index = 0; index < num1; ++index)
{
int length = 1920 * (index + 1) > this._buffer.Length ? this._buffer.Length - 1920 * index : 1920;
this._opusComponent.WriteFrame(AudioRecorderViewModel.SubArray <byte>(this._buffer, 1920 * index, length), length);
}
List <short> shortList = new List <short>();
int startIndex1 = 0;
while (startIndex1 < this._buffer.Length)
{
short int16 = BitConverter.ToInt16(this._buffer, startIndex1);
shortList.Add(int16);
startIndex1 += 2;
}
double num2 = 0.0;
try
{
long num3 = this._samplesCount + (long)(data / 2);
int num4 = (int)((double)this._samplesCount / (double)num3 * (double)this._recordSamples.Length);
int num5 = this._recordSamples.Length - num4;
if (num4 != 0)
{
float num6 = (float)this._recordSamples.Length / (float)num4;
float num7 = 0.0f;
for (int index = 0; index < num4; ++index)
{
this._recordSamples[index] = this._recordSamples[(int)num7];
num7 += num6;
}
}
int index1 = num4;
float num8 = 0.0f;
float num9 = (float)data / 2f / (float)num5;
int startIndex2 = 0;
for (int index2 = 0; index2 < data / 2; ++index2)
{
short int16 = BitConverter.ToInt16(this._buffer, startIndex2);
double num6 = (double)int16 / 32768.0;
num2 += num6 * num6;
if (index2 == (int)num8 && index1 < this._recordSamples.Length)
{
this._recordSamples[index1] = int16;
num8 += num9;
++index1;
}
startIndex2 += 2;
}
this._samplesCount = num3;
}
catch (Exception ex)
{
Logger.Instance.Error("Audio record failure", ex);
}
double num10 = Math.Max(0.0, Math.Min(1.0, 1.0 - Math.Abs(AudioRecorderViewModel.ConvertAmplitudeToDb(Math.Sqrt(num2 / ((double)data / 2.0)))) / Math.Abs(-50.0)));
Action <double> valueChangedCallback = this._decibelValueChangedCallback;
if (valueChangedCallback == null)
{
return;
}
double num11 = num10;
valueChangedCallback(num11);
}
