add queen mary DSP library

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

1 files changed, 40 insertions, 0 deletions

diff --git a/libs/qm-dsp/dsp/rhythm/BeatSpectrum.h b/libs/qm-dsp/dsp/rhythm/BeatSpectrum.h
new file mode 100644
index 0000000000..e8984088d9
--- /dev/null
+++ b/libs/qm-dsp/dsp/rhythm/BeatSpectrum.h
@@ -0,0 +1,40 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    QM DSP Library
+
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2008 Kurt Jacobson and QMUL.
+
+    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.
+*/
+
+#ifndef BEATSPECTRUM_H
+#define BEATSPECTRUM_H
+
+#include <vector>
+
+/**
+ * Given a matrix of "feature values", calculate a self-similarity
+ * vector.  The resulting vector will have half as many elements as
+ * the number of columns in the matrix.  This is based on the
+ * SoundBite rhythmic similarity code.
+ */
+
+class BeatSpectrum
+{
+public:
+    BeatSpectrum() { }
+    ~BeatSpectrum() { }
+
+    std::vector<double> process(const std::vector<std::vector<double> > &inmatrix);
+
+};
+
+#endif
+
+