* Initial import

2007-11-06 21:41:16 +00:00
commit 597c96a200
38 changed files with 7863 additions and 0 deletions
--- a/src/ladspa/RubberBandPitchShifter.h
+++ b/src/ladspa/RubberBandPitchShifter.h
@@ -0,0 +1,91 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rubber Band
+    An audio time-stretching and pitch-shifting library.
+    Copyright 2007 Chris Cannam.
+    
+    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 _RUBBERBAND_PITCH_SHIFTER_H_
+#define _RUBBERBAND_PITCH_SHIFTER_H_
+
+#include <ladspa.h>
+
+#include "RingBuffer.h"
+
+namespace RubberBand {
+class RubberBandStretcher;
+}
+
+class RubberBandPitchShifter
+{
+public:
+    static const LADSPA_Descriptor *getDescriptor(unsigned long index);
+    
+protected:
+    RubberBandPitchShifter(int sampleRate, size_t channels);
+    ~RubberBandPitchShifter();
+
+    enum {
+        LatencyPort      = 0,
+	OctavesPort      = 1,
+	SemitonesPort    = 2,
+	CentsPort        = 3,
+        InputPort1       = 4,
+        OutputPort1      = 5,
+        PortCountMono    = 6,
+        InputPort2       = 6,
+        OutputPort2      = 7,
+        PortCountStereo  = 8
+    };
+
+    static const char *const portNamesMono[PortCountMono];
+    static const LADSPA_PortDescriptor portsMono[PortCountMono];
+    static const LADSPA_PortRangeHint hintsMono[PortCountMono];
+
+    static const char *const portNamesStereo[PortCountStereo];
+    static const LADSPA_PortDescriptor portsStereo[PortCountStereo];
+    static const LADSPA_PortRangeHint hintsStereo[PortCountStereo];
+
+    static const LADSPA_Properties properties;
+
+    static const LADSPA_Descriptor ladspaDescriptorMono;
+    static const LADSPA_Descriptor ladspaDescriptorStereo;
+
+    static LADSPA_Handle instantiate(const LADSPA_Descriptor *, unsigned long);
+    static void connectPort(LADSPA_Handle, unsigned long, LADSPA_Data *);
+    static void activate(LADSPA_Handle);
+    static void run(LADSPA_Handle, unsigned long);
+    static void deactivate(LADSPA_Handle);
+    static void cleanup(LADSPA_Handle);
+
+    void runImpl(unsigned long);
+    void updateRatio();
+
+    float *m_input[2];
+    float *m_output[2];
+    float *m_latency;
+    float *m_cents;
+    float *m_semitones;
+    float *m_octaves;
+    double m_ratio;
+    double m_prevRatio;
+
+    size_t m_extraLatency;
+
+    RubberBand::RubberBandStretcher *m_stretcher;
+    RubberBand::RingBuffer<float> *m_outputBuffer[2];
+    float *m_scratch[2];
+
+    int m_sampleRate;
+    size_t m_channels;
+};
+
+
+#endif