diff dsp/rateconversion/Decimator.h @ 225:49844bc8a895

* Queen Mary C++ DSP library

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dsp/rateconversion/Decimator.h	Wed Apr 05 17:35:59 2006 +0000
@@ -0,0 +1,42 @@
+/* -*- 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 2005-2006 Christian Landone.
+    All rights reserved.
+*/
+
+#ifndef DECIMATOR_H
+#define DECIMATOR_H
+
+class Decimator  
+{
+public:
+    void process( double* src, double* dst );
+    void doAntiAlias( double* src, double* dst, unsigned int length );
+
+    Decimator( unsigned int inLength, unsigned int decFactor );
+    virtual ~Decimator();
+
+private:
+    void resetFilter();
+    void deInitialise();
+    void initialise( unsigned int inLength, unsigned int decFactor );
+
+    unsigned int m_inputLength;
+    unsigned int m_outputLength;
+    unsigned int m_decFactor;
+
+    double Input;
+    double Output ;
+
+    double o1,o2,o3,o4,o5,o6,o7;
+
+    double a[ 9 ];
+    double b[ 9 ];
+	
+    double* decBuffer;
+};
+
+#endif //