public static bool ExportSample(SampleGeneratingArgs sampleGeneratingArgs, string name,
string exportFolder, Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples = null,
SampleExportFormat format = SampleExportFormat.Default)
{
// Export as midi file with single note
if (format == SampleExportFormat.MidiChords)
{
MidiExporter.SaveToFile(Path.Combine(exportFolder, name + ".mid"), new[] { sampleGeneratingArgs });
return(true);
}
if (sampleGeneratingArgs.CanCopyPaste && format == SampleExportFormat.Default)
{
var dest = Path.Combine(exportFolder, name + sampleGeneratingArgs.GetExtension());
return(CopySample(sampleGeneratingArgs.Path, dest));
}
SampleSoundGenerator sampleSoundGenerator;
if (loadedSamples != null)
{
if (SampleImporter.ValidateSampleArgs(sampleGeneratingArgs, loadedSamples))
{
sampleSoundGenerator = loadedSamples[sampleGeneratingArgs];
}
else
{
return(false);
}
}
else
{
try {
sampleSoundGenerator = SampleImporter.ImportSample(sampleGeneratingArgs);
} catch (Exception ex) {
Console.WriteLine($@"{ex.Message} while importing sample {sampleGeneratingArgs}.");
return(false);
}
}
var sourceWaveEncoding = sampleSoundGenerator.Wave.WaveFormat.Encoding;
// Either if it is the blank sample or the source file is literally what the user wants to be exported
if (sampleSoundGenerator.BlankSample && sampleGeneratingArgs.GetExtension() == ".wav" ||
sampleGeneratingArgs.CanCopyPaste && IsCopyCompatible(sampleGeneratingArgs, sourceWaveEncoding, format))
{
var dest = Path.Combine(exportFolder, name + sampleGeneratingArgs.GetExtension());
return(CopySample(sampleGeneratingArgs.Path, dest));
}
var sampleProvider = sampleSoundGenerator.GetSampleProvider();
if ((format == SampleExportFormat.WavePcm || format == SampleExportFormat.OggVorbis) && sourceWaveEncoding == WaveFormatEncoding.IeeeFloat)
{
// When the source is IEEE float and the export format is PCM or Vorbis, then clipping is possible, so we add a limiter
sampleProvider = new SoftLimiter(sampleProvider);
}
switch (format)
{
case SampleExportFormat.WaveIeeeFloat:
CreateWaveFile(Path.Combine(exportFolder, name + ".wav"), sampleProvider.ToWaveProvider());
break;
case SampleExportFormat.WavePcm:
CreateWaveFile(Path.Combine(exportFolder, name + ".wav"), sampleProvider.ToWaveProvider16());
break;
case SampleExportFormat.OggVorbis:
var resampled = new WdlResamplingSampleProvider(sampleProvider,
VorbisFileWriter.GetSupportedSampleRate(sampleProvider.WaveFormat.SampleRate));
VorbisFileWriter.CreateVorbisFile(Path.Combine(exportFolder, name + ".ogg"), resampled.ToWaveProvider());
break;
default:
switch (sourceWaveEncoding)
{
case WaveFormatEncoding.IeeeFloat:
CreateWaveFile(Path.Combine(exportFolder, name + ".wav"), sampleProvider.ToWaveProvider());
break;
case WaveFormatEncoding.Pcm:
CreateWaveFile(Path.Combine(exportFolder, name + ".wav"), sampleProvider.ToWaveProvider16());
break;
default:
CreateWaveFile(Path.Combine(exportFolder, name + ".wav"), sampleProvider.ToWaveProvider());
break;
}
break;
}
return(true);
}
private void PlayThread()
{
ResamplerDmoStream resamplerDmoStream = null;
IWaveProvider playbackProvider = sourceProvider;
Exception exception = null;
WdlResamplingSampleProvider resamplerWdlStream = null;
try
{
if (dmoResamplerNeeded)
{
if (!windowsN)
{
resamplerDmoStream = new ResamplerDmoStream(sourceProvider, outputFormat);
playbackProvider = resamplerDmoStream;
}
else
{
resamplerWdlStream = new WdlResamplingSampleProvider(sourceProvider.ToSampleProvider(), outputFormat.SampleRate);
playbackProvider = resamplerWdlStream.ToWaveProvider();
}
}
// fill a whole buffer
bufferFrameCount = audioClient.BufferSize;
bytesPerFrame = outputFormat.Channels * outputFormat.BitsPerSample / 8;
readBuffer = new byte[bufferFrameCount * bytesPerFrame];
FillBuffer(playbackProvider, bufferFrameCount);
// Create WaitHandle for sync
var waitHandles = new WaitHandle[] { frameEventWaitHandle };
audioClient.Start();
while (playbackState != PlaybackState.Stopped)
{
// If using Event Sync, Wait for notification from AudioClient or Sleep half latency
int indexHandle = 0;
if (isUsingEventSync)
{
indexHandle = WaitHandle.WaitAny(waitHandles, 3 * latencyMilliseconds, false);
}
else
{
Thread.Sleep(latencyMilliseconds / 2);
}
// If still playing and notification is ok
if (playbackState == PlaybackState.Playing && indexHandle != WaitHandle.WaitTimeout)
{
// See how much buffer space is available.
int numFramesPadding;
if (isUsingEventSync)
{
// In exclusive mode, always ask the max = bufferFrameCount = audioClient.BufferSize
numFramesPadding = (shareMode == AudioClientShareMode.Shared) ? audioClient.CurrentPadding : 0;
}
else
{
numFramesPadding = audioClient.CurrentPadding;
}
int numFramesAvailable = bufferFrameCount - numFramesPadding;
if (numFramesAvailable > 10) // see https://naudio.codeplex.com/workitem/16363
{
FillBuffer(playbackProvider, numFramesAvailable);
}
}
}
Thread.Sleep(latencyMilliseconds / 2);
audioClient.Stop();
if (playbackState == PlaybackState.Stopped)
{
audioClient.Reset();
}
}
catch (Exception e)
{
exception = e;
}
finally
{
if (resamplerDmoStream != null)
{
resamplerDmoStream.Dispose();
}
RaisePlaybackStopped(exception);
}
}