Chris@366: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@366: 
Chris@366: #ifndef FLATTENDYNAMICS_LADSPA_H
Chris@366: #define FLATTENDYNAMICS_LADSPA_H
Chris@366: 
Chris@366: #include <ladspa.h>
Chris@366: 
Chris@366: class FlattenDynamics
Chris@366: {
Chris@366: public:
Chris@366:     static const LADSPA_Descriptor *getDescriptor(unsigned long index);
Chris@366: 
Chris@366:     enum Port {
Chris@366:         AudioInputPort     = 0,
Chris@366: 	AudioOutputPort    = 1,
Chris@366:         GainOutputPort     = 2,
Chris@366: 	PortCount          = 3,
Chris@366:     };
Chris@366: 
Chris@366:     // Rest of the public interface is for use when constructing the
Chris@366:     // class directly, rather than through LADSPA
Chris@366: 
Chris@366:     FlattenDynamics(int sampleRate);
Chris@366:     ~FlattenDynamics();
Chris@366: 
Chris@366:     void connectInputPort(Port p, const float *addr);
Chris@366:     void connectOutputPort(Port p, float *addr);
Chris@366:     void reset();
Chris@366:     void process(int nsamples);
Chris@366: 
Chris@366: private:
Chris@366:     static const char *const portNames[PortCount];
Chris@366:     static const LADSPA_PortDescriptor ports[PortCount];
Chris@366:     static const LADSPA_PortRangeHint hints[PortCount];
Chris@366:     static const LADSPA_Properties properties;
Chris@366:     static const LADSPA_Descriptor ladspaDescriptor;
Chris@366: 
Chris@366:     static LADSPA_Handle ladspaInstantiate(const LADSPA_Descriptor *, unsigned long);
Chris@366:     static void ladspaConnectPort(LADSPA_Handle, unsigned long, LADSPA_Data *);
Chris@366:     static void ladspaActivate(LADSPA_Handle);
Chris@366:     static void ladspaRun(LADSPA_Handle, unsigned long);
Chris@366:     static void ladspaDeactivate(LADSPA_Handle);
Chris@366:     static void ladspaCleanup(LADSPA_Handle);
Chris@366: 
Chris@366:     float processSingle(float sample);
Chris@366:     void updateRMS(float);
Chris@366:     void updateParameters();
Chris@366: 
Chris@366:     int m_sampleRate;
Chris@366:     const float *m_input;
Chris@366:     float *m_output;
Chris@366:     float *m_pgain;
Chris@366: 
Chris@366:     float *m_history;
Chris@366:     int m_histlen;
Chris@366:     int m_histwrite;
Chris@366:     int m_histread;
Chris@366: 
Chris@366:     double m_sumOfSquares;
Chris@366:     float m_rms;
Chris@366:     float m_maxRms;
Chris@366:     float m_gain;
Chris@366: };
Chris@366: 
Chris@366: #endif