add queen mary DSP library

git-svn-id: svn://localhost/ardour2/branches/3.0@9029 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/qm-dsp/dsp/segmentation/cluster_segmenter.h

@@ -0,0 +1,51 @@
+#ifndef _CLUSTER_SEGMENTER_H
+#define _CLUSTER_SEGMENTER_H
+
+/*
+ *  cluster_segmenter.h
+ *  soundbite
+ *
+ *  Created by Mark Levy on 06/04/2006.
+ *  Copyright 2006 Centre for Digital Music, Queen Mary, University of London.
+
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <float.h>
+
+#include "segment.h"
+#include "cluster_melt.h"
+#include "hmm/hmm.h"
+#include "maths/pca/pca.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* applies MPEG-7 normalisation to constant-Q features, storing normalised envelope (norm) in last feature dimension */
+void mpeg7_constq(double** features, int nframes, int ncoeff);
+
+/* converts constant-Q features to normalised chroma */
+void cq2chroma(double** cq, int nframes, int ncoeff, int bins, double** chroma);
+
+void create_histograms(int* x, int nx, int m, int hlen, double* h);
+
+void cluster_segment(int* q, double** features, int frames_read, int feature_length, int nHMM_states, 
+					 int histogram_length, int nclusters, int neighbour_limit);
+
+void constq_segment(int* q, double** features, int frames_read, int bins, int ncoeff, int feature_type, 
+			 int nHMM_states, int histogram_length, int nclusters, int neighbour_limit);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif