public static bool ExportSample(SampleGeneratingArgs sampleGeneratingArgs, string name,
string exportFolder, Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples = null)
{
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);
}
}
// TODO: Allow mp3, ogg and aif export.
string filename = name + ".wav";
CreateWaveFile(Path.Combine(exportFolder, filename), sampleSoundGenerator.GetSampleProvider().ToWaveProvider16());
return(true);
}
public static Dictionary <SampleGeneratingArgs, string> GenerateSampleNames(IEnumerable <SampleGeneratingArgs> samples,
Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples)
{
var usedNames = new HashSet <string>();
var sampleNames = new Dictionary <SampleGeneratingArgs, string>();
foreach (var sample in samples)
{
if (!SampleImporter.ValidateSampleArgs(sample, loadedSamples))
{
sampleNames[sample] = string.Empty;
continue;
}
var baseName = sample.GetFilename();
var name = baseName;
int i = 1;
while (usedNames.Contains(name))
{
name = baseName + "-" + ++i;
}
usedNames.Add(name);
sampleNames[sample] = name;
}
return(sampleNames);
}
public static void ExportCustomIndices(List<CustomIndex> customIndices, string exportFolder, Dictionary<SampleGeneratingArgs, SampleSoundGenerator> loadedSamples=null) {
foreach (CustomIndex ci in customIndices) {
foreach (KeyValuePair<string, HashSet<SampleGeneratingArgs>> kvp in ci.Samples) {
if (kvp.Value.Count == 0) {
continue;
}
var samples = new List<ISampleProvider>();
var volumes = new List<double>();
int soundsAdded = 0;
if (loadedSamples != null) {
foreach (SampleGeneratingArgs args in kvp.Value) {
if (SampleImporter.ValidateSampleArgs(args, loadedSamples)) {
var sample = loadedSamples[args];
samples.Add(sample.GetSampleProvider());
volumes.Add(sample.VolumeCorrection != -1 ? sample.VolumeCorrection : 1f);
soundsAdded++;
}
}
} else {
foreach (SampleGeneratingArgs args in kvp.Value) {
try {
var sample = SampleImporter.ImportSample(args);
samples.Add(sample.GetSampleProvider());
volumes.Add(sample.VolumeCorrection != -1 ? sample.VolumeCorrection : 1f);
soundsAdded++;
} catch (Exception) { }
}
}
if (soundsAdded == 0) {
continue;
}
int maxSampleRate = samples.Max(o => o.WaveFormat.SampleRate);
int maxChannels = samples.Max(o => o.WaveFormat.Channels);
IEnumerable<ISampleProvider> sameFormatSamples = samples.Select(o => (ISampleProvider)new WdlResamplingSampleProvider(SampleImporter.SetChannels(o, maxChannels), maxSampleRate));
ISampleProvider result = new MixingSampleProvider(sameFormatSamples);
if (soundsAdded > 1) {
result = new VolumeSampleProvider(result) {
Volume = (float)(1 / Math.Sqrt(soundsAdded * volumes.Average()))
};
result = new SimpleCompressorEffect(result) {
Threshold = 16,
Ratio = 6,
Attack = 0.1,
Release = 0.1,
Enabled = true,
MakeUpGain = 15 * Math.Log10(Math.Sqrt(soundsAdded * volumes.Average()))
};
}
// TODO: Allow mp3, ogg and aif export.
string filename = ci.Index == 1 ? kvp.Key + ".wav" : kvp.Key + ci.Index + ".wav";
CreateWaveFile(Path.Combine(exportFolder, filename), result.ToWaveProvider16());
}
}
}
public static void BalanceVolumes(List <SamplePackage> packages, VolumeBalancingArgs args)
{
foreach (SamplePackage package in packages)
{
double maxVolume = package.Samples.Max(o => o.SampleArgs.Volume);
if (Math.Abs(maxVolume - -0.01) < Precision.DOUBLE_EPSILON)
{
maxVolume = 1;
}
foreach (Sample sample in package.Samples)
{
if (Math.Abs(sample.SampleArgs.Volume - -0.01) < Precision.DOUBLE_EPSILON)
{
sample.SampleArgs.Volume = 1;
}
// I pick the new volume such that the samples have a volume as high as possible and the greenline brings the volume down.
// With this equation the final amplitude stays the same while the greenline has the volume of the loudest sample at this time.
double newVolume = SampleImporter.AmplitudeToVolume(
SampleImporter.VolumeToAmplitude(package.Volume) *
SampleImporter.VolumeToAmplitude(sample.SampleArgs.Volume) /
SampleImporter.VolumeToAmplitude(maxVolume));
if (Math.Abs(newVolume - 1) > args.Roughness && !args.AlwaysFullVolume)
{
// If roughness is not 0 it will quantize the new volume in order to reduce the number of different volumes
sample.SampleArgs.Volume = Math.Abs(args.Roughness) > Precision.DOUBLE_EPSILON ?
args.Roughness * Math.Round(newVolume / args.Roughness) :
newVolume;
}
else
{
sample.SampleArgs.Volume = 1;
}
}
if (args.AlwaysFullVolume)
{
// Assuming the volume of the sample is always maximum, this equation makes sure that
// the loudest sample at this time has the wanted amplitude using the volume change from the greenline.
package.Volume = SampleImporter.AmplitudeToVolume(
SampleImporter.VolumeToAmplitude(package.Volume) *
SampleImporter.VolumeToAmplitude(maxVolume));
}
else
{
package.Volume = maxVolume;
}
}
}
public static void ExportLoadedSamples(Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples,
string exportFolder, Dictionary <SampleGeneratingArgs, string> names = null,
SampleExportFormat format = SampleExportFormat.Default)
{
if (names == null)
{
names = GenerateSampleNames(loadedSamples.Keys, loadedSamples);
}
foreach (var sample in loadedSamples.Keys.Where(sample => SampleImporter.ValidateSampleArgs(sample, loadedSamples)))
{
ExportSample(sample, names[sample], exportFolder, loadedSamples, format);
}
}
/// <summary>
///
/// </summary>
/// <param name="loadedSamples"></param>
public void CleanInvalids(Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples = null, bool validateSampleFile = true)
{
// Replace all invalid paths with "" and remove the invalid path if another valid path is also in the hashset
foreach (HashSet <SampleGeneratingArgs> paths in Samples.Values)
{
int initialCount = paths.Count;
int removed = paths.RemoveWhere(o => !SampleImporter.ValidateSampleArgs(o, loadedSamples, validateSampleFile));
if (paths.Count == 0 && initialCount != 0)
{
// All the paths where invalid and it didn't just start out empty
paths.Add(new SampleGeneratingArgs()); // This "" is here to prevent this hashset from getting new paths
}
}
}
public static void AddNewSampleName(Dictionary <SampleGeneratingArgs, string> sampleNames, SampleGeneratingArgs sample,
Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples)
{
if (!SampleImporter.ValidateSampleArgs(sample, loadedSamples))
{
sampleNames[sample] = string.Empty;
return;
}
var baseName = sample.GetFilename();
var name = baseName;
int i = 1;
while (sampleNames.ContainsValue(name))
{
name = baseName + "-" + ++i;
}
sampleNames[sample] = name;
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public ISampleProvider GetSampleProvider()
{
Wave.Position = 0;
ISampleProvider output = WaveToSampleProvider(Wave);
if (FadeStart != -1 && FadeLength != -1)
{
output = new DelayFadeOutSampleProvider(output);
((DelayFadeOutSampleProvider)output).BeginFadeOut(FadeStart * 1000, FadeLength * 1000);
}
if (KeyCorrection != 0)
{
output = SampleImporter.PitchShift(output, KeyCorrection);
}
if (VolumeCorrection != 1)
{
output = SampleImporter.VolumeChange(output, VolumeCorrection);
}
return(output);
}
public static List <HitsoundEvent> GetHitsounds(List <SamplePackage> samplePackages,
ref Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples,
ref Dictionary <SampleGeneratingArgs, string> names,
ref Dictionary <SampleGeneratingArgs, Vector2> positions)
{
HashSet <SampleGeneratingArgs> allSampleArgs = new HashSet <SampleGeneratingArgs>();
foreach (SamplePackage sp in samplePackages)
{
allSampleArgs.UnionWith(sp.Samples.Select(o => o.SampleArgs));
}
if (loadedSamples == null)
{
loadedSamples = SampleImporter.ImportSamples(allSampleArgs);
}
if (names == null)
{
names = HitsoundExporter.GenerateSampleNames(allSampleArgs, loadedSamples);
}
if (positions == null)
{
positions = HitsoundExporter.GenerateHitsoundPositions(allSampleArgs);
}
var hitsounds = new List <HitsoundEvent>();
foreach (var p in samplePackages)
{
foreach (var s in p.Samples)
{
hitsounds.Add(new HitsoundEvent(p.Time,
positions[s.SampleArgs], s.OutsideVolume, names[s.SampleArgs], s.SampleSet, s.SampleSet,
0, s.Whistle, s.Finish, s.Clap));
}
}
return(hitsounds);
}
public static void ExportMixedSample(IEnumerable <SampleGeneratingArgs> sampleGeneratingArgses, string name,
string exportFolder, Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples = null,
SampleExportFormat format = SampleExportFormat.Default, SampleExportFormat mixedFormat = SampleExportFormat.Default)
{
// Try loading all the valid samples
var validLoadedSamples = new Dictionary <SampleGeneratingArgs, SampleSoundGenerator>();
if (loadedSamples != null)
{
foreach (var args in sampleGeneratingArgses)
{
if (!SampleImporter.ValidateSampleArgs(args, loadedSamples))
{
continue;
}
var sample = loadedSamples[args];
validLoadedSamples.Add(args, sample);
}
}
else
{
// Import each sample individually
foreach (SampleGeneratingArgs args in sampleGeneratingArgses)
{
try {
var sample = SampleImporter.ImportSample(args);
validLoadedSamples.Add(args, sample);
} catch (Exception ex) {
Console.WriteLine($@"{ex.Message} while importing sample {args}.");
}
}
}
if (validLoadedSamples.Count == 0)
{
return;
}
// If all the valid samples are blank samples, then also export only a single blank sample
if (validLoadedSamples.Count == 1 || validLoadedSamples.All(o => o.Value.BlankSample))
{
// It has only one valid sample, so we can just export it with the single sample export
ExportSample(validLoadedSamples.Keys.First(), name, exportFolder, loadedSamples, format);
}
else if (validLoadedSamples.Count > 1)
{
// Synchronize the sample rate and channels for all samples and get the sample providers
int maxSampleRate = validLoadedSamples.Values.Max(o => o.Wave.WaveFormat.SampleRate);
int maxChannels = validLoadedSamples.Values.Max(o => o.Wave.WaveFormat.Channels);
IEnumerable <ISampleProvider> sameFormatSamples = validLoadedSamples.Select(o =>
(ISampleProvider) new WdlResamplingSampleProvider(SampleImporter.SetChannels(o.Value.GetSampleProvider(), maxChannels),
maxSampleRate));
ISampleProvider sampleProvider = new MixingSampleProvider(sameFormatSamples);
// If the input is Ieee float or you are mixing multiple samples, then clipping is possible,
// so you can either export as IEEE float or use a compressor and export as 16-bit PCM (half filesize) or Vorbis (even smaller filesize)
// If the input is only The Blank Sample then it should export The Blank Sample
if (mixedFormat == SampleExportFormat.WavePcm || mixedFormat == SampleExportFormat.OggVorbis)
{
// When the sample is mixed and the export format is PCM or Vorbis, then clipping is possible, so we add a limiter
sampleProvider = new SoftLimiter(sampleProvider);
}
switch (mixedFormat)
{
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:
VorbisFileWriter.CreateVorbisFile(Path.Combine(exportFolder, name + ".ogg"), sampleProvider.ToWaveProvider());
break;
default:
CreateWaveFile(Path.Combine(exportFolder, name + ".wav"), sampleProvider.ToWaveProvider());
break;
}
}
}
public static bool ExportSample(SampleGeneratingArgs sampleGeneratingArgs, string name,
string exportFolder, Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples = null,
SampleExportFormat format = SampleExportFormat.Default)
{
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 sourceEncoding = 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 && IsFormatEncodingCompatible(sourceEncoding, 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) && sourceEncoding == 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:
VorbisFileWriter.CreateVorbisFile(Path.Combine(exportFolder, name + ".ogg"), sampleProvider.ToWaveProvider());
break;
default:
switch (sourceEncoding)
{
case WaveFormatEncoding.IeeeFloat:
CreateWaveFile(Path.Combine(exportFolder, name + ".wav"), sampleProvider.ToWaveProvider());
break;
case WaveFormatEncoding.Pcm:
CreateWaveFile(Path.Combine(exportFolder, name + ".wav"), sampleProvider.ToWaveProvider16());
break;
case WaveFormatEncoding.Vorbis1:
case WaveFormatEncoding.Vorbis2:
case WaveFormatEncoding.Vorbis3:
case WaveFormatEncoding.Vorbis1P:
case WaveFormatEncoding.Vorbis2P:
case WaveFormatEncoding.Vorbis3P:
// Vorbis files default to being exported as 16-bit PCM wave files because that's lossless
CreateWaveFile(Path.Combine(exportFolder, name + ".wav"), sampleProvider.ToWaveProvider16());
break;
default:
CreateWaveFile(Path.Combine(exportFolder, name + ".wav"), sampleProvider.ToWaveProvider());
break;
}
break;
}
return(true);
}
/// <summary>
/// Balances the volume of <see cref="SamplePackage"/> such that volume is mostly handled by osu!'s volume controllers rather than
/// in-sample amplitude changes.
/// </summary>
/// <param name="packages"></param>
/// <param name="roughness">Quantizing level in the new volumes of samples. Can be used to decrease the number of distinct volume levels.</param>
/// <param name="alwaysFullVolume">Forces to always use maximum amplitude in the samples.</param>
/// <param name="individualVolume">Allows for multiple distinct volume levels within a single <see cref="SamplePackage"/>.</param>
public static void BalanceVolumes(IEnumerable <SamplePackage> packages, double roughness, bool alwaysFullVolume, bool individualVolume = false)
{
foreach (SamplePackage package in packages)
{
if (individualVolume)
{
// Simply mix the volume in the sample to the outside volume
foreach (Sample sample in package.Samples)
{
sample.OutsideVolume = SampleImporter.AmplitudeToVolume(
SampleImporter.VolumeToAmplitude(sample.OutsideVolume) *
SampleImporter.VolumeToAmplitude(sample.SampleArgs.Volume));
sample.SampleArgs.Volume = 1;
}
continue;
}
double maxVolume = package.Samples.Max(o => o.SampleArgs.Volume);
if (Math.Abs(maxVolume - -0.01) < Precision.DOUBLE_EPSILON)
{
maxVolume = 1;
}
foreach (Sample sample in package.Samples)
{
if (Math.Abs(sample.SampleArgs.Volume - -0.01) < Precision.DOUBLE_EPSILON)
{
sample.SampleArgs.Volume = 1;
}
// Pick the new volume such that the samples have a volume as high as possible and the greenline brings the volume down.
// With this equation the final amplitude stays the same while the greenline has the volume of the loudest sample at this time.
double newVolume = SampleImporter.AmplitudeToVolume(
SampleImporter.VolumeToAmplitude(sample.OutsideVolume) *
SampleImporter.VolumeToAmplitude(sample.SampleArgs.Volume) /
SampleImporter.VolumeToAmplitude(maxVolume));
if (Math.Abs(newVolume - 1) > roughness && !alwaysFullVolume)
{
// If roughness is not 0 it will quantize the new volume in order to reduce the number of different volumes
sample.SampleArgs.Volume = Math.Abs(roughness) > Precision.DOUBLE_EPSILON ?
roughness * Math.Round(newVolume / roughness) :
newVolume;
}
else
{
sample.SampleArgs.Volume = 1;
}
}
if (alwaysFullVolume)
{
// Assuming the volume of the sample is always maximum, this equation makes sure that
// the loudest sample at this time has the wanted amplitude using the volume change from the greenline.
package.SetAllOutsideVolume(SampleImporter.AmplitudeToVolume(
SampleImporter.VolumeToAmplitude(package.MaxOutsideVolume) *
SampleImporter.VolumeToAmplitude(maxVolume)));
}
else
{
package.SetAllOutsideVolume(maxVolume);
}
}
}
public static List <HitsoundEvent> GetHitsounds(List <SamplePackage> samplePackages,
ref Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples,
ref Dictionary <SampleGeneratingArgs, string> names,
ref Dictionary <SampleGeneratingArgs, Vector2> positions,
bool maniaPositions = false, bool includeRegularHitsounds = true, bool allowNamingGrowth = false,
bool validateSampleFile = true, SampleGeneratingArgsComparer comparer = null)
{
if (comparer == null)
{
comparer = new SampleGeneratingArgsComparer();
}
HashSet <SampleGeneratingArgs> allSampleArgs = new HashSet <SampleGeneratingArgs>(comparer);
foreach (SamplePackage sp in samplePackages)
{
allSampleArgs.UnionWith(sp.Samples.Select(o => o.SampleArgs));
}
if (loadedSamples == null)
{
loadedSamples = SampleImporter.ImportSamples(allSampleArgs, comparer);
}
if (names == null)
{
names = HitsoundExporter.GenerateSampleNames(allSampleArgs, loadedSamples, validateSampleFile, comparer);
}
if (positions == null)
{
positions = maniaPositions ? HitsoundExporter.GenerateManiaHitsoundPositions(allSampleArgs, comparer) :
HitsoundExporter.GenerateHitsoundPositions(allSampleArgs, comparer);
}
var hitsounds = new List <HitsoundEvent>();
foreach (var p in samplePackages)
{
foreach (var s in p.Samples)
{
string filename;
if (names.ContainsKey(s.SampleArgs))
{
filename = names[s.SampleArgs];
}
else
{
// Validate the sample because we expect only valid samples to be present in the sample schema
if (SampleImporter.ValidateSampleArgs(s.SampleArgs, loadedSamples, validateSampleFile))
{
if (allowNamingGrowth)
{
HitsoundExporter.AddNewSampleName(names, s.SampleArgs, loadedSamples);
filename = names[s.SampleArgs];
}
else
{
throw new Exception($"Given sample schema doesn't support sample ({s.SampleArgs}) and growth is disabled.");
}
}
else
{
filename = string.Empty;
}
}
if (includeRegularHitsounds)
{
hitsounds.Add(new HitsoundEvent(p.Time,
positions[s.SampleArgs], s.OutsideVolume, filename, s.SampleSet, s.SampleSet,
0, s.Whistle, s.Finish, s.Clap));
}
else
{
hitsounds.Add(new HitsoundEvent(p.Time,
positions[s.SampleArgs], s.OutsideVolume, filename, SampleSet.Auto, SampleSet.Auto,
0, false, false, false));
}
}
}
return(hitsounds);
}
/// <summary>
/// Analyses all sound samples in a folder and generates a mapping from a full path without extension to the full path of the first sample which makes the same sound.
/// Use this to detect duplicate samples.
/// </summary>
/// <param name="dir"></param>
/// <param name="extended"></param>
/// <param name="detectDuplicateSamples"></param>
/// <returns></returns>
public static Dictionary <string, string> AnalyzeSamples(string dir, bool extended = false, bool detectDuplicateSamples = true)
{
var extList = new[] { ".wav", ".ogg", ".mp3" };
List <string> samplePaths = Directory.GetFiles(dir, "*.*", extended ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly)
.Where(n => extList.Contains(Path.GetExtension(n), StringComparer.OrdinalIgnoreCase)).ToList();
Dictionary <string, string> dict = new Dictionary <string, string>();
bool error = false;
// Compare all samples to find ones with the same data
if (detectDuplicateSamples)
{
for (int i = 0; i < samplePaths.Count; i++)
{
long thisLength = new FileInfo(samplePaths[i]).Length;
for (int k = 0; k <= i; k++)
{
if (samplePaths[i] != samplePaths[k])
{
long otherLength = new FileInfo(samplePaths[k]).Length;
if (thisLength != otherLength)
{
continue;
}
try {
using (var thisWave = SampleImporter.OpenSample(samplePaths[i])) {
using (var otherWave = SampleImporter.OpenSample(samplePaths[k])) {
if (thisWave.Length != otherWave.Length)
{
continue;
}
byte[] thisBuffer = new byte[thisWave.Length];
thisWave.Read(thisBuffer, 0, (int)thisWave.Length);
byte[] otherBuffer = new byte[otherWave.Length];
otherWave.Read(otherBuffer, 0, (int)otherWave.Length);
if (!thisBuffer.SequenceEqual(otherBuffer))
{
continue;
}
}
}
} catch (Exception ex) {
// Something went wrong reading the samples. I'll just assume they weren't the same
if (!error)
{
MessageBox.Show($"Exception '{ex.Message}' while trying to analyze samples.",
"Warning");
ex.Show();
error = true;
}
continue;
}
}
string samplePath = samplePaths[i];
string fullPathExtLess =
Path.Combine(Path.GetDirectoryName(samplePath) ?? throw new InvalidOperationException(),
Path.GetFileNameWithoutExtension(samplePath));
dict[fullPathExtLess] = samplePaths[k];
break;
}
}
}
else
{
foreach (var samplePath in samplePaths)
{
string fullPathExtLess =
Path.Combine(Path.GetDirectoryName(samplePath) ?? throw new InvalidOperationException(),
Path.GetFileNameWithoutExtension(samplePath));
dict[fullPathExtLess] = samplePath;
}
}
return(dict);
}
public static void ExportMixedSample(IEnumerable <SampleGeneratingArgs> sampleGeneratingArgses, string name,
string exportFolder, Dictionary <SampleGeneratingArgs, SampleSoundGenerator> loadedSamples = null)
{
var samples = new List <ISampleProvider>();
var volumes = new List <double>();
int soundsAdded = 0;
if (loadedSamples != null)
{
foreach (var sample in from args in sampleGeneratingArgses where SampleImporter.ValidateSampleArgs(args, loadedSamples) select loadedSamples[args])
{
samples.Add(sample.GetSampleProvider());
volumes.Add(Math.Abs(sample.VolumeCorrection - -1) > Precision.DOUBLE_EPSILON ? sample.VolumeCorrection : 1f);
soundsAdded++;
}
}
else
{
foreach (SampleGeneratingArgs args in sampleGeneratingArgses)
{
try {
var sample = SampleImporter.ImportSample(args);
samples.Add(sample.GetSampleProvider());
volumes.Add(Math.Abs(sample.VolumeCorrection - -1) > Precision.DOUBLE_EPSILON
? sample.VolumeCorrection
: 1f);
soundsAdded++;
} catch (Exception ex) {
Console.WriteLine($@"{ex.Message} while importing sample {args}.");
}
}
}
if (soundsAdded == 0)
{
return;
}
int maxSampleRate = samples.Max(o => o.WaveFormat.SampleRate);
int maxChannels = samples.Max(o => o.WaveFormat.Channels);
IEnumerable <ISampleProvider> sameFormatSamples = samples.Select(o => (ISampleProvider) new WdlResamplingSampleProvider(SampleImporter.SetChannels(o, maxChannels), maxSampleRate));
ISampleProvider result = new MixingSampleProvider(sameFormatSamples);
if (soundsAdded > 1)
{
result = new VolumeSampleProvider(result)
{
Volume = (float)(1 / Math.Sqrt(soundsAdded * volumes.Average()))
};
result = new SimpleCompressorEffect(result)
{
Threshold = 16,
Ratio = 6,
Attack = 0.1,
Release = 0.1,
Enabled = true,
MakeUpGain = 15 * Math.Log10(Math.Sqrt(soundsAdded * volumes.Average()))
};
}
// TODO: Allow mp3, ogg and aif export.
string filename = name + ".wav";
CreateWaveFile(Path.Combine(exportFolder, filename), result.ToWaveProvider16());
}
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().ToLower() == ".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);
}
