/// <summary>
/// Reads bytes from this wave stream
/// </summary>
/// <param name="destBuffer">The destination buffer</param>
/// <returns>Number of bytes read.</returns>
public int Read(Span <byte> destBuffer)
{
int samplesRequired = destBuffer.Length / 2;
sourceBuffer = BufferHelpers.Ensure(sourceBuffer, samplesRequired);
var s = new Span <float>(sourceBuffer, 0, samplesRequired);
int sourceSamples = sourceProvider.Read(s);
var outBuf = MemoryMarshal.Cast <byte, short>(destBuffer);
//destBuffer.NonPortableCast<byte,short>();
for (int sample = 0; sample < sourceSamples; sample++)
{
// adjust volume
float sample32 = sourceBuffer[sample] * volume;
// clip
if (sample32 > 1.0f)
{
sample32 = 1.0f;
}
if (sample32 < -1.0f)
{
sample32 = -1.0f;
}
outBuf[sample++] = (short)(sample32 * 32767);
}
return(sourceSamples * 2);
}
/// <summary>
/// Ensure the source buffer exists and is big enough
/// </summary>
/// <param name="sourceBytesRequired">Bytes required</param>
protected void EnsureSourceBuffer(int sourceBytesRequired)
{
sourceBuffer = BufferHelpers.Ensure(sourceBuffer, sourceBytesRequired);
}