/// <summary>
/// Helper function to go from IWaveProvider to a SampleProvider
/// Must already be PCM or IEEE float
/// </summary>
/// <param name="waveProvider">The WaveProvider to convert</param>
/// <returns>A sample provider</returns>
public static ISampleProvider ConvertWaveProviderIntoSampleProvider(IWaveProvider waveProvider)
{
ISampleProvider sampleProvider;
if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.Pcm)
{
// go to float
if (waveProvider.WaveFormat.BitsPerSample == 8)
{
sampleProvider = new Pcm8BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 16)
{
sampleProvider = new Pcm16BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 24)
{
sampleProvider = new Pcm24BitToSampleProvider(waveProvider);
}
else
{
throw new InvalidOperationException("Unsupported operation");
}
}
else if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.IeeeFloat)
{
sampleProvider = new WaveToSampleProvider(waveProvider);
}
else
{
throw new ArgumentException("Unsupported source encoding");
}
return sampleProvider;
}
/// <summary>
/// Helper function to go from IWaveProvider to a SampleProvider
/// Must already be PCM or IEEE float
/// </summary>
/// <param name="waveProvider">The WaveProvider to convert</param>
/// <returns>A sample provider</returns>
public static ISampleProvider ConvertWaveProviderIntoSampleProvider(IWaveProvider waveProvider)
{
ISampleProvider sampleProvider;
if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.Pcm)
{
// go to float
if (waveProvider.WaveFormat.BitsPerSample == 8)
{
sampleProvider = new Pcm8BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 16)
{
sampleProvider = new Pcm16BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 24)
{
sampleProvider = new Pcm24BitToSampleProvider(waveProvider);
}
else
{
throw new InvalidOperationException("Unsupported operation");
}
}
else if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.IeeeFloat)
{
sampleProvider = new WaveToSampleProvider(waveProvider);
}
else
{
throw new ArgumentException("Unsupported source encoding");
}
return(sampleProvider);
}
public static ISampleProvider ConvertWaveProviderIntoSampleProvider(IWaveProvider waveProvider)
{
ISampleProvider result;
if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.Pcm)
{
if (waveProvider.WaveFormat.BitsPerSample == 8)
{
result = new Pcm8BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 16)
{
result = new Pcm16BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 24)
{
result = new Pcm24BitToSampleProvider(waveProvider);
}
else
{
if (waveProvider.WaveFormat.BitsPerSample != 32)
{
throw new InvalidOperationException("Unsupported bit depth");
}
result = new Pcm32BitToSampleProvider(waveProvider);
}
}
else
{
if (waveProvider.WaveFormat.Encoding != WaveFormatEncoding.IeeeFloat)
{
throw new ArgumentException("Unsupported source encoding");
}
if (waveProvider.WaveFormat.BitsPerSample == 64)
{
result = new WaveToSampleProvider64(waveProvider);
}
else
{
result = new WaveToSampleProvider(waveProvider);
}
}
return(result);
}
/// <summary>
/// Initialises a new instance of SampleChannel
/// </summary>
/// <param name="waveProvider">Source wave provider, must be PCM or IEEE</param>
public SampleChannel(IWaveProvider waveProvider)
{
ISampleProvider sampleProvider;
if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.Pcm)
{
// go to float
if (waveProvider.WaveFormat.BitsPerSample == 8)
{
sampleProvider = new Pcm8BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 16)
{
sampleProvider = new Pcm16BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 24)
{
sampleProvider = new Pcm24BitToSampleProvider(waveProvider);
}
else
{
throw new InvalidOperationException("Unsupported operation");
}
}
else if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.IeeeFloat)
{
sampleProvider = new WaveToSampleProvider(waveProvider);
}
else
{
throw new ArgumentException("Unsupported source encoding");
}
if (sampleProvider.WaveFormat.Channels == 1)
{
sampleProvider = new MonoToStereoSampleProvider(sampleProvider);
}
this.waveFormat = sampleProvider.WaveFormat;
// let's put the meter before the volume (useful for drawing waveforms)
this.preVolumeMeter = new MeteringSampleProvider(sampleProvider);
this.volumeProvider = new VolumeSampleProvider(preVolumeMeter);
}
/// <summary>
/// Initialises a new instance of SampleChannel
/// </summary>
/// <param name="waveProvider">Source wave provider, must be PCM or IEEE</param>
public SampleChannel(IWaveProvider waveProvider)
{
ISampleProvider sampleProvider;
if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.Pcm)
{
// go to float
if (waveProvider.WaveFormat.BitsPerSample == 8)
{
sampleProvider = new Pcm8BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 16)
{
sampleProvider = new Pcm16BitToSampleProvider(waveProvider);
}
else if (waveProvider.WaveFormat.BitsPerSample == 24)
{
sampleProvider = new Pcm24BitToSampleProvider(waveProvider);
}
else
{
throw new InvalidOperationException("Unsupported operation");
}
}
else if (waveProvider.WaveFormat.Encoding == WaveFormatEncoding.IeeeFloat)
{
sampleProvider = new WaveToSampleProvider(waveProvider);
}
else
{
throw new ArgumentException("Unsupported source encoding");
}
if (sampleProvider.WaveFormat.Channels == 1)
{
sampleProvider = new MonoToStereoSampleProvider(sampleProvider);
}
this.waveFormat = sampleProvider.WaveFormat;
// let's put the meter before the volume (useful for drawing waveforms)
this.preVolumeMeter = new MeteringSampleProvider(sampleProvider);
this.volumeProvider = new VolumeSampleProvider(preVolumeMeter);
}
