/// <summary>Reads processed data to the provided buffer.</summary>
/// <param name="buffer">The buffer.</param>
/// <param name="offset">The offset to the first value.</param>
/// <param name="count">The number of the values to read.</param>
/// <returns>The number of read values.</returns>
public int Read(float[] buffer, int offset, int count)
{
int read = resampler.Read(buffer, offset, count);
SamplesAvailable?.Invoke(this, new SamplesAvailableEventArgs(buffer, offset, read));
return(read);
}
public Afedri()
{
settings.SamplingRate = DEFAULT_SAMPLING_RATE;
Format = new SignalFormat(DEFAULT_SAMPLING_RATE, true, settings.IsSync(), settings.ChannelCount(),
-(int)(DEFAULT_SAMPLING_RATE * 0.47), (int)(DEFAULT_SAMPLING_RATE * 0.47), 0);
buffer.SamplesAvailable += (o, e) => SamplesAvailable?.Invoke(this, e);
}
/// <summary>Writes floating point values to the specified buffer.</summary>
/// <param name="buffer">The buffer.</param>
/// <param name="offset">The offset to the first value.</param>
/// <param name="count">The number of values.</param>
public void Write(float[] buffer, int offset, int count)
{
if (count > ringBuffer.Length)
{
//throw new ArgumentException($"Too many values to write: {count}.");
Resize(count);
}
lock (lockObject)
{
int spaceAvailable = ringBuffer.Length - Count;
int count1 = Math.Min(count, ringBuffer.Length - writePos);
int count2 = count - count1;
if (count1 > 0)
{
Array.Copy(buffer, offset, ringBuffer, writePos, count1);
writePos += count1;
if (writePos == ringBuffer.Length)
{
writePos = 0;
}
}
if (count2 > 0)
{
Array.Copy(buffer, offset + count1, ringBuffer, 0, count2);
writePos = count2;
}
Count += count;
//buffer overflow
if (count > spaceAvailable)
{
Count = ringBuffer.Length;
readPos = writePos;
}
}
SamplesAvailable?.Invoke(this, new SamplesAvailableEventArgs((float[])buffer.Clone(), offset, count));
}
/// <summary>
/// Ensure that registered delegates receive the SamplesAvailable event.
/// </summary>
/// <param name="e">Event argument.</param>
private void OnSamplesAvailable(SamplesAvailableEventArgs e)
{
// If there are subscriber(s), raise event.
SamplesAvailable?.Invoke(this, e);
}