public BigArray <float> GenerateMissingFrame(int frequency)
{
int frameSize = frameSizes[frequency * 1000];
codecWrapper codec = encoders[frequency * 1000];
short[] decodedFrame16Bit = TempArray <short> .Obtain(frameSize * 4);
int decoded = codec.decoder.Decode(null, 0, 0, decodedFrame16Bit, 0, true);
if (tempOutputArray.Length != decoded)
{
tempOutputArray.Resize(decoded);
}
for (int i = 0; i < decoded; i++)
{
float val = (float)decodedFrame16Bit[i];
val /= short.MaxValue;
tempOutputArray[i] = val;
}
TempArray <short> .Release(decodedFrame16Bit);
return(tempOutputArray);
}
public BigArray <float> DecodeFrame(VoicePacketWrapper data)
{
int frameSize = frameSizes[data.Frequency * 1000];
codecWrapper codec = encoders[data.Frequency * 1000];
short[] decodedFrame16Bit = TempArray <short> .Obtain(frameSize * 4);
int decoded = codec.decoder.Decode(data.RawData, 0, data.RawData.Length, decodedFrame16Bit, 0, false);
if (tempOutputArray.Length != decoded)
{
tempOutputArray.Resize(decoded);
}
for (int i = 0; i < decoded; i++)
{
float val = (float)decodedFrame16Bit[i];
val /= short.MaxValue;
tempOutputArray[i] = val;
}
TempArray <short> .Release(decodedFrame16Bit);
return(tempOutputArray);
}
/// <summary>
/// For internal use only.
/// </summary>
// @private
internal T[] ToTempArray()
{
var result = TempArray <T> .Obtain(this.count);
Array.Copy(items, 0, result, 0, this.count);
return(result);
}
public void BufferAudio(BigArray <float> audioData)
{
if (GetComponent <AudioSource>() == null)
{
return;
}
float[] temp = TempArray <float> .Obtain(audioData.Length);
audioData.CopyTo(0, temp, 0, audioData.Length * 4);
if (Equalize)
{
float maxAmp = AudioUtils.GetMaxAmplitude(temp);
targetGain = TargetEqualizeVolume / maxAmp;
if (targetGain > MaxEqualization)
{
targetGain = MaxEqualization;
}
if (targetGain < currentGain)
{
currentGain = targetGain;
}
AudioUtils.ApplyGain(temp, currentGain);
}
playClip.SetData(temp, writeHead);
TempArray <float> .Release(temp);
writeHead += audioData.Length;
totalWritten += audioData.Length;
writeHead %= playClip.samples;
if (!GetComponent <AudioSource>().isPlaying)
{
delayForFrames--;
if (delayForFrames <= 0)
{
GetComponent <AudioSource>().Play();
}
}
}
public VoicePacketWrapper?GetNextEncodedFrame(int frequency)
{
int frameSize = frameSizes[frequency];
codecWrapper codec = encoders[frequency];
float[] chunk = TempArray <float> .Obtain(frameSize);
bool chunkAvailable = chunkBuffer.RetrieveChunk(chunk);
if (!chunkAvailable)
{
TempArray <float> .Release(chunk);
return(null);
}
tempPacketWrapper = new VoicePacketWrapper();
tempPacketWrapper.Frequency = (byte)(frequency / 1000);
short[] audio16bit = TempArray <short> .Obtain(frameSize);
for (int i = 0; i < frameSize; i++)
{
float val = chunk[i] * short.MaxValue;
audio16bit[i] = (short)val;
}
TempArray <float> .Release(chunk);
byte[] buffer = TempArray <byte> .Obtain(audio16bit.Length * 2);
int encoded = codec.encoder.Encode(audio16bit, 0, frameSize, buffer, 0, buffer.Length);
TempArray <short> .Release(audio16bit);
tempPacketWrapper.RawData = new byte[encoded];
System.Buffer.BlockCopy(buffer, 0, tempPacketWrapper.RawData, 0, encoded);
TempArray <byte> .Release(buffer);
return(tempPacketWrapper);
}
void Update()
{
if (!Microphone.IsRecording(device) || recordedAudio == null)
{
return;
}
float[] tempArray = TempArray <float> .Obtain(ChunkSize);
// in case of recompile
if (resampleBuffer == null)
{
resampleBuffer = new BigArray <float>(ChunkSize, 0);
}
int readPosition = Microphone.GetPosition(device);
if (readPosition >= (prevReadPosition + ChunkSize))
{
while (readPosition >= (prevReadPosition + ChunkSize))
{
if (canTalk())
{
recordedAudio.GetData(tempArray, prevReadPosition);
if (exceedsVolumeThreshold(tempArray))
{
resample(tempArray);
bufferReady(resampleBuffer, this.recordingFrequency);
}
}
prevReadPosition += ChunkSize;
}
}
else if (prevReadPosition > readPosition)
{
var endReadPos = readPosition + recordedAudio.samples;
var diff = endReadPos - prevReadPosition;
while (diff >= ChunkSize)
{
if (canTalk())
{
recordedAudio.GetData(tempArray, prevReadPosition);
if (exceedsVolumeThreshold(tempArray))
{
resample(tempArray);
bufferReady(resampleBuffer, this.recordingFrequency);
}
}
prevReadPosition += ChunkSize;
if (prevReadPosition >= recordedAudio.samples)
{
prevReadPosition -= recordedAudio.samples;
break;
}
endReadPos = readPosition + recordedAudio.samples;
diff = endReadPos - prevReadPosition;
}
}
TempArray <float> .Release(tempArray);
}
