/// <summary>
/// Implements the Read method of IWaveProvider by delegating to the abstract
/// Read method taking a short array
/// </summary>
public int Read(byte[] buffer, int offset, int count)
{
var waveBuffer = new WaveBuffer(buffer);
int samplesRequired = count/2;
int samplesRead = Read(waveBuffer.ShortBuffer, offset/2, samplesRequired);
return samplesRead*2;
}
/// <summary>
/// Implements the Read method of IWaveProvider by delegating to the abstract
/// Read method taking a float array
/// </summary>
public int Read(byte[] buffer, int offset, int count)
{
var waveBuffer = new WaveBuffer(buffer);
int samplesRequired = count/4;
int samplesRead = Read(waveBuffer.FloatBuffer, offset/4, samplesRequired);
return samplesRead*4;
}
/// <summary>
/// Reads bytes from this wave stream
/// </summary>
/// <param name="destBuffer">The destination buffer</param>
/// <param name="offset">Offset into the destination buffer</param>
/// <param name="numBytes">Number of bytes read</param>
/// <returns>Number of bytes read.</returns>
public int Read(byte[] destBuffer, int offset, int numBytes)
{
int sourceBytesRequired = numBytes/2;
byte[] sourceBuffer = GetSourceBuffer(sourceBytesRequired);
int sourceBytesRead = sourceProvider.Read(sourceBuffer, offset, sourceBytesRequired);
var sourceWaveBuffer = new WaveBuffer(sourceBuffer);
var destWaveBuffer = new WaveBuffer(destBuffer);
int sourceSamples = sourceBytesRead/2;
int destOffset = offset/4;
for (int sample = 0; sample < sourceSamples; sample++)
{
destWaveBuffer.FloatBuffer[destOffset++] = (sourceWaveBuffer.ShortBuffer[sample]/32768f)*volume;
}
return sourceSamples*4;
}
/// <summary>
/// Reads bytes from this WaveProvider
/// </summary>
public int Read(byte[] buffer, int offset, int count)
{
int sourceBytesRequired = count/2;
EnsureBuffer(sourceBytesRequired);
var sourceWaveBuffer = new WaveBuffer(sourceBuffer);
var destWaveBuffer = new WaveBuffer(buffer);
int sourceBytesRead = sourceProvider.Read(sourceBuffer, 0, sourceBytesRequired);
int samplesRead = sourceBytesRead/2;
int destOffset = offset/2;
for (int sample = 0; sample < samplesRead; sample++)
{
short sampleVal = sourceWaveBuffer.ShortBuffer[sample];
destWaveBuffer.ShortBuffer[destOffset++] = (short) (LeftVolume*sampleVal);
destWaveBuffer.ShortBuffer[destOffset++] = (short) (RightVolume*sampleVal);
}
return samplesRead*4;
}
/// <summary>
/// Reads bytes from this WaveProvider
/// </summary>
public int Read(byte[] buffer, int offset, int count)
{
int sourceBytesRequired = count*2;
EnsureBuffer(sourceBytesRequired);
var sourceWaveBuffer = new WaveBuffer(sourceBuffer);
var destWaveBuffer = new WaveBuffer(buffer);
int sourceBytesRead = sourceProvider.Read(sourceBuffer, 0, sourceBytesRequired);
int samplesRead = sourceBytesRead/2;
int destOffset = offset/2;
for (int sample = 0; sample < samplesRead; sample += 2)
{
short left = sourceWaveBuffer.ShortBuffer[sample];
short right = sourceWaveBuffer.ShortBuffer[sample + 1];
float outSample = (left*LeftVolume) + (right*RightVolume);
// hard limiting
if (outSample > Int16.MaxValue) outSample = Int16.MaxValue;
if (outSample < Int16.MinValue) outSample = Int16.MinValue;
destWaveBuffer.ShortBuffer[destOffset++] = (short) outSample;
}
return sourceBytesRead/2;
}
/// <summary>
/// Reads bytes from this wave stream
/// </summary>
/// <param name="destBuffer">The destination buffer</param>
/// <param name="offset">Offset into the destination buffer</param>
/// <param name="numBytes">Number of bytes read</param>
/// <returns>Number of bytes read.</returns>
public int Read(byte[] destBuffer, int offset, int numBytes)
{
int sourceBytesRequired = numBytes*2;
byte[] sourceBuffer = GetSourceBuffer(sourceBytesRequired);
int sourceBytesRead = sourceProvider.Read(sourceBuffer, offset, sourceBytesRequired);
var sourceWaveBuffer = new WaveBuffer(sourceBuffer);
var destWaveBuffer = new WaveBuffer(destBuffer);
int sourceSamples = sourceBytesRead/4;
int destOffset = offset/2;
for (int sample = 0; sample < sourceSamples; sample++)
{
// adjust volume
float sample32 = sourceWaveBuffer.FloatBuffer[sample]*volume;
// clip
if (sample32 > 1.0f)
sample32 = 1.0f;
if (sample32 < -1.0f)
sample32 = -1.0f;
destWaveBuffer.ShortBuffer[destOffset++] = (short) (sample32*32767);
}
return sourceSamples*2;
}
