/// <summary>
/// Reads samples from this sample provider
/// </summary>
/// <param name="buffer">Sample buffer</param>
/// <param name="offset">Offset into sample buffer</param>
/// <param name="sampleCount">Number of samples desired</param>
/// <returns>Number of samples read</returns>
public int Read(float[] buffer, int offset, int sampleCount)
{
int samplesRead = source.Read(buffer, offset, sampleCount);
if (Volume != 1f)
{
rampGain.CalculateGainStepDelta(sampleCount);
for (int n = 0; n < sampleCount; n++)
{
buffer[offset + n] *= (float)rampGain.CurrentGain;
rampGain.CalculateNextGain();
}
}
return(samplesRead);
}
/// <summary>
/// Reads samples from this provider
/// </summary>
/// <param name="buffer">Sample buffer</param>
/// <param name="offset">Offset into sample buffer</param>
/// <param name="count">Number of samples required</param>
/// <returns>Number of samples read</returns>
public int Read(float[] buffer, int offset, int count)
{
var sourceSamplesRequired = count / 2;
var outIndex = offset;
EnsureSourceBuffer(sourceSamplesRequired);
var sourceSamplesRead = source.Read(sourceBuffer, 0, sourceSamplesRequired);
leftRampGain.CalculateGainStepDelta(sourceSamplesRequired);
rightRampGain.CalculateGainStepDelta(sourceSamplesRequired);
for (var n = 0; n < sourceSamplesRead; n++)
{
buffer[outIndex++] = sourceBuffer[n] * (float)leftRampGain.CurrentGain;
buffer[outIndex++] = sourceBuffer[n] * (float)rightRampGain.CurrentGain;
leftRampGain.CalculateNextGain();
rightRampGain.CalculateNextGain();
}
return(sourceSamplesRead * 2);
}