public static async Task <float[][]> GetData(IWaveSource waveSource, int samplesPerSecond = 16)
{
if (waveSource == null)
{
throw new ArgumentNullException("waveSource");
}
return(await Task.Run(() =>
{
var sampleSource = new InterruptDisposeChainSource(waveSource).ToSampleSource();
var audioLength = sampleSource.ToWaveSource().GetLength();
var numberOfPoints = audioLength.TotalSeconds *samplesPerSecond;
var channels = sampleSource.WaveFormat.Channels;
var blockSize = (int)(sampleSource.Length / channels / numberOfPoints);
var waveformDataChannels = new WaveformDataChannel[channels];
for (var i = 0; i < channels; i++)
{
waveformDataChannels[i] = new WaveformDataChannel(blockSize);
}
var buffer = new float[sampleSource.WaveFormat.BlockAlign * 5];
var sampleCount = 0;
var flag = true;
while (flag)
{
var samplesToRead = buffer.Length;
var read = sampleSource.Read(buffer, 0, samplesToRead);
for (var i = 0; i < read; i += channels)
{
for (var n = 0; n < channels; n++)
{
waveformDataChannels[n].AddSample(buffer[i + n]);
sampleCount++;
}
}
if (read == 0)
{
flag = false;
}
}
foreach (var waveformDataChannel in waveformDataChannels)
{
waveformDataChannel.Finish();
}
Length = sampleCount;
return waveformDataChannels.Select(x => x.GetData()).ToArray();
}));
}
public static async Task<float[][]> GetData(IWaveSource waveSource)
{
if (waveSource == null)
throw new ArgumentNullException("waveSource");
return await Task.Run(() =>
{
var sampleSource = new InterruptDisposeChainSource(waveSource).ToSampleSource();
var channels = sampleSource.WaveFormat.Channels;
var blockSize = (int) (sampleSource.Length / channels / NumberOfPoints);
var waveformDataChannels = new WaveformDataChannel[channels];
for (var i = 0; i < channels; i++)
{
waveformDataChannels[i] = new WaveformDataChannel(blockSize);
}
var buffer = new float[sampleSource.WaveFormat.BlockAlign * 5];
var sampleCount = 0;
var flag = true;
while (flag)
{
var samplesToRead = buffer.Length;
var read = sampleSource.Read(buffer, 0, samplesToRead);
for (var i = 0; i < read; i += channels)
{
for (var n = 0; n < channels; n++)
{
waveformDataChannels[n].AddSample(buffer[i + n]);
sampleCount++;
}
}
if (read == 0)
flag = false;
}
foreach (var waveformDataChannel in waveformDataChannels)
{
waveformDataChannel.Finish();
}
Length = sampleCount;
return waveformDataChannels.Select(x => x.GetData()).ToArray();
});
}
