public void TestCircularSampleBuffer()
{
var x = new CircularSampleBuffer(4000);
Assert.AreEqual(0, x.Count);
x.Write(LinearArray(0, 3950), 0, 3950);
Assert.AreEqual(3950, x.Count);
var target = new float[3950];
x.Read(target, 0, 3950);
Assert.AreEqual(0, x.Count);
var source = LinearArray(0, 100);
x.Write(source, 0, 100);
Assert.AreEqual(100, x.Count);
target = new float[100];
x.Read(target, 0, 100);
Assert.AreEqual(0, x.Count);
Assert.AreEqual(source, target);
var read = x.Read(target, 0, 100);
Assert.AreEqual(0, read);
}
/// <inheritdoc />
public override int Read(float[] buffer, int offset, int count)
{
if (_circularBuffer.Count < count)
{
if (_finished)
{
Finished();
}
}
else
{
var read = new float[count];
_circularBuffer.Read(read, 0, read.Length);
for (var i = 0; i < count; i++)
{
buffer[offset + i] = read[i];
}
var samples = count / 2;
SamplesPlayed(samples);
}
if (!_finished)
{
RequestBuffers();
}
return(count);
}
private void GenerateSound(AudioProcessingEvent e)
{
var left = e.OutputBuffer.GetChannelData(0);
var right = e.OutputBuffer.GetChannelData(1);
var samples = left.Length + right.Length;
if (_circularBuffer.Count < samples)
{
if (_finished)
{
Finished();
}
}
else
{
var buffer = new SampleArray(samples);
_circularBuffer.Read(buffer, 0, buffer.Length);
var s = 0;
for (int i = 0; i < left.Length; i++)
{
left[i] = buffer[s++];
right[i] = buffer[s++];
}
SamplesPlayed(left.Length);
}
if (!_finished)
{
RequestBuffers();
}
}
/// <inheritdoc />
public override int Read(float[] buffer, int offset, int count)
{
if (_circularBuffer.Count < count)
{
if (_finished)
{
((EventEmitter)Finished).Trigger();
}
}
else
{
var read = new Float32Array(count);
_circularBuffer.Read(read, 0, read.Length);
Buffer.BlockCopy(read.Data, 0, buffer, offset * sizeof(float),
count * sizeof(float));
var samples = count / 2;
((EventEmitterOfT <double>)SamplesPlayed).Trigger(samples);
}
if (!_finished)
{
RequestBuffers();
}
return(count);
}
/// <inheritdoc />
public override int Read(float[] buffer, int offset, int count)
{
var read = new Float32Array(count);
_circularBuffer.Read(read, 0, System.Math.Min(read.Length, _circularBuffer.Count));
Buffer.BlockCopy(read.Data, 0, buffer, offset * sizeof(float),
count * sizeof(float));
var samples = count / 2;
((EventEmitterOfT <double>)SamplesPlayed).Trigger(samples);
RequestBuffers();
return(count);
}
private void GenerateSound(DOMEvent e)
{
var ae = (AudioProcessingEvent)e;
var left = ae.outputBuffer.getChannelData(0);
var right = ae.outputBuffer.getChannelData(1);
var samples = left.length + right.length;
if (_circularBuffer.Count < samples)
{
if (_finished)
{
if (Finished != null)
{
Finished();
}
Stop();
}
else
{
// when buffering we count it as pause time
_pauseTime += (int)((BufferSize * 1000) / (2 * _context.sampleRate));
}
}
else
{
var buffer = new SampleArray(samples);
_circularBuffer.Read(buffer, 0, buffer.Length);
var s = 0;
for (int i = 0; i < left.length; i++)
{
left[i] = buffer[s++];
right[i] = buffer[s++];
}
}
if (PositionChanged != null)
{
PositionChanged((int)(CalcPosition()));
}
if (!_finished)
{
RequestBuffers();
}
}
public override int Read(float[] buffer, int offset, int count)
{
if (_circularBuffer.Count < count)
{
if (_finished)
{
if (Finished != null)
{
Finished();
}
Stop();
}
else
{
// when buffering we count it as pause time
_pauseTime += (BufferSize * 1000) / (2 * WaveFormat.SampleRate);
}
}
else
{
var read = new SampleArray(count);
_circularBuffer.Read(read, 0, read.Length);
for (int i = 0; i < count; i++)
{
buffer[offset + i] = read[i];
}
}
if (PositionChanged != null)
{
PositionChanged((int)(CalcPosition()));
}
if (!_finished)
{
RequestBuffers();
}
return(count);
}
public int Pull(float[] data, int offset = 0)
{
return(buffer.Read(data, offset, data.Length));
}
