internal LocalVoice(Client client, byte id, IAudioStream audioStream, object userData, int encoderSamplingRateHz, int numChannels, int bitrate, int delay)
: base((SamplingRate)encoderSamplingRateHz, (Channels)numChannels, bitrate, OpusApplicationType.Voip, (Delay)delay)
{
this.client = client;
this.id = id;
this.audioStream = audioStream;
this.sourceSamplingRateHz = audioStream.SamplingRate;
this.userData = userData;
this.frameSize = VoiceUtil.DelayToFrameSize((int)delay, (int)encoderSamplingRateHz, (int)numChannels);
this.sourceFrameSize = this.frameSize * this.sourceSamplingRateHz / (int)this.InputSamplingRate;
this.frameBuffer = new float[this.frameSize];
if (this.sourceFrameSize == this.frameSize)
{
this.sourceFrameBuffer = this.frameBuffer;
}
else
{
this.sourceSamplingRateHz = audioStream.SamplingRate;
this.sourceFrameBuffer = new float[this.sourceFrameSize];
this.client.DebugReturn(DebugLevel.WARNING, "[PV] Local voice #" + this.id + " audio source frequency " + this.sourceSamplingRateHz + " and encoder sampling rate " + (int)this.InputSamplingRate + " do not match. Resampling will occur before encoding.");
}
this.LevelMeter = new LevelMeter(this.sourceSamplingRateHz, numChannels); //1/2 sec
this.VoiceDetector = new VoiceDetector(this.sourceSamplingRateHz, numChannels);
// _debug_decoder = new OpusDecoder(this.InputSamplingRate, this.InputChannels);
}
private bool readStream()
{
if (!this.audioStream.GetData(this.sourceFrameBuffer))
{
return(false);
}
this.LevelMeter.process(this.sourceFrameBuffer);
// process VAD calibration (could be moved to process method of yet another processor)
if (this.voiceDetectorCalibrateCount != 0)
{
this.voiceDetectorCalibrateCount -= this.sourceFrameBuffer.Length;
if (this.voiceDetectorCalibrateCount <= 0)
{
this.voiceDetectorCalibrateCount = 0;
this.VoiceDetector.Threshold = LevelMeter.AccumAvgPeakAmp * 2;
}
}
if (this.VoiceDetector.On)
{
this.VoiceDetector.process(this.sourceFrameBuffer);
if (!this.VoiceDetector.Detected)
{
return(false);
}
}
if (this.sourceFrameBuffer != this.frameBuffer)
{
VoiceUtil.Resample(this.sourceFrameBuffer, this.frameBuffer, (int)this.opusEncoder.InputChannels);
}
return(true);
}
internal void receiveBytes(byte[] receivedBytes, byte evNumber)
{
// receive-gap detection and compensation
if (evNumber != this.lastEvNumber)
{
int missing = VoiceUtil.byteDiff(evNumber, this.lastEvNumber);
if (missing != 0)
{
this.voiceClient.frontend.DebugReturn(DebugLevel.ALL, "[PV] evNumer: " + evNumber + " playerVoice.lastEvNumber: " + this.lastEvNumber + " missing: " + missing);
}
this.lastEvNumber = evNumber;
// restoring missing frames
for (int i = 0; i < missing; i++)
{
this.receiveFrame(null);
}
this.voiceClient.FramesLost += missing;
}
this.receiveFrame(receivedBytes);
}
/// <summary>Converts delay to frame size (samples*channels)</summary>
public static int DelayToFrameSize(int _encoderDelay, int _inputSamplingRate, int numChannels)
{
return(VoiceUtil.DelayToSamples(_encoderDelay, _inputSamplingRate) * numChannels);
}
