qm-dsp  1.8
cluster_segmenter.h
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00001 #ifndef _CLUSTER_SEGMENTER_H
00002 #define _CLUSTER_SEGMENTER_H
00003 
00004 /*
00005  *  cluster_segmenter.h
00006  *  soundbite
00007  *
00008  *  Created by Mark Levy on 06/04/2006.
00009  *  Copyright 2006 Centre for Digital Music, Queen Mary, University of London.
00010 
00011     This program is free software; you can redistribute it and/or
00012     modify it under the terms of the GNU General Public License as
00013     published by the Free Software Foundation; either version 2 of the
00014     License, or (at your option) any later version.  See the file
00015     COPYING included with this distribution for more information.
00016  *
00017  */
00018 
00019 #include <stdio.h>
00020 #include <stdlib.h>
00021 #include <math.h>
00022 #include <float.h>
00023 
00024 #include "segment.h"
00025 #include "cluster_melt.h"
00026 #include "hmm/hmm.h"
00027 #include "maths/pca/pca.h"
00028 
00029 #ifdef __cplusplus
00030 extern "C" {
00031 #endif
00032 
00033 /* applies MPEG-7 normalisation to constant-Q features, storing normalised envelope (norm) in last feature dimension */
00034 void mpeg7_constq(double** features, int nframes, int ncoeff);
00035 
00036 /* converts constant-Q features to normalised chroma */
00037 void cq2chroma(double** cq, int nframes, int ncoeff, int bins, double** chroma);
00038 
00039 void create_histograms(int* x, int nx, int m, int hlen, double* h);
00040 
00041 void cluster_segment(int* q, double** features, int frames_read, int feature_length, int nHMM_states, 
00042                                          int histogram_length, int nclusters, int neighbour_limit);
00043 
00044 void constq_segment(int* q, double** features, int frames_read, int bins, int ncoeff, int feature_type, 
00045                          int nHMM_states, int histogram_length, int nclusters, int neighbour_limit);
00046 
00047 #ifdef __cplusplus
00048 }
00049 #endif
00050 
00051 #endif