public Repository(IPermutations permutations, DatabaseService dbService, FingerprintService fingerprintService)
{
this.permutations = permutations;
this.minHash = new MinHash(this.permutations);
this.dbService = dbService;
this.fingerprintService = fingerprintService;
}
public static FingerprintService GetSoundfingerprintingService()
{
// Audio service
IAudioService audioService = new AudioService();
// Fingerprint Descriptor
FingerprintDescriptor fingerprintDescriptor = new FingerprintDescriptor();
// SpectrumService
SpectrumService spectrumService = new SpectrumService();
// Wavelet Service
IWaveletDecomposition waveletDecomposition = new Soundfingerprinting.Fingerprinting.Wavelets.StandardHaarWaveletDecomposition();
IWaveletService waveletService = new WaveletService(waveletDecomposition);
// Fingerprint Service
FingerprintService fingerprintService = new FingerprintService(audioService,
fingerprintDescriptor,
spectrumService,
waveletService);
return fingerprintService;
}
private static List<bool[]> GetFingerprintSignatures(FingerprintService fingerprintService, float[] samples, string name)
{
Mirage.DbgTimer t = new Mirage.DbgTimer();
t.Start();
// work config
WorkUnitParameterObject param = new WorkUnitParameterObject();
param.FingerprintingConfiguration = fingerprintingConfigCreation;
// Get fingerprints
double[][] LogSpectrogram;
List<double[][]> spectralImages;
List<bool[]> fingerprints = fingerprintService.CreateFingerprintsFromAudioSamples(samples, param, out LogSpectrogram, out spectralImages);
#if DEBUG
if (Analyzer.DEBUG_INFO_VERBOSE) {
// Image Service
ImageService imageService =
new ImageService(fingerprintService.SpectrumService, fingerprintService.WaveletService);
int width = param.FingerprintingConfiguration.FingerprintLength;
int height = param.FingerprintingConfiguration.LogBins;
imageService.GetImageForFingerprints(fingerprints, width, height, 2).Save(name + "_fingerprints.png");
}
#endif
Mirage.Dbg.WriteLine("GetFingerprintSignatures Execution Time: " + t.Stop().TotalMilliseconds + " ms");
return fingerprints;
}
public static void SaveFingerprintingDebugImages(string fileName, double[][] logSpectrogram, List<bool[]> fingerprints, FingerprintService fingerprintService, IFingerprintingConfiguration fingerprintConfig) {
ImageService imageService = new ImageService(fingerprintService.SpectrumService, fingerprintService.WaveletService);
int fingerprintsPerRow = 2;
imageService.GetSpectrogramImage(logSpectrogram, logSpectrogram.Length, logSpectrogram[0].Length).Save(fileName + "_spectrogram.png");
imageService.GetWaveletsImages(logSpectrogram, fingerprintConfig.Stride, fingerprintConfig.FingerprintLength, fingerprintConfig.Overlap, fingerprintsPerRow).Save(fileName + "_wavelets.png");
imageService.GetLogSpectralImages(logSpectrogram, fingerprintConfig.Stride, fingerprintConfig.FingerprintLength, fingerprintConfig.Overlap, fingerprintsPerRow).Save(fileName + "_spectrograms.png");
imageService.GetImageForFingerprints(fingerprints, fingerprintConfig.FingerprintLength, fingerprintConfig.LogBins, fingerprintsPerRow).Save(fileName + "_fingerprints.png");
}