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/* -*- 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 2007-2008 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_C_API_H_
#define _RUBBERBAND_C_API_H_
#ifdef __cplusplus
extern "C" {
#endif
#define RUBBERBAND_VERSION "1.3.0-gpl"
#define RUBBERBAND_API_MAJOR_VERSION 2
#define RUBBERBAND_API_MINOR_VERSION 0
/**
* This is a C-linkage interface to the Rubber Band time stretcher.
*
* This is a wrapper interface: the primary interface is in C++ and is
* defined and documented in RubberBandStretcher.h. The library
* itself is implemented in C++, and requires C++ standard library
* support even when using the C-linkage API.
*
* Please see RubberBandStretcher.h for documentation.
*
* If you are writing to the C++ API, do not include this header.
*/
enum RubberBandOption {
RubberBandOptionProcessOffline = 0x00000000,
RubberBandOptionProcessRealTime = 0x00000001,
RubberBandOptionStretchElastic = 0x00000000,
RubberBandOptionStretchPrecise = 0x00000010,
RubberBandOptionTransientsCrisp = 0x00000000,
RubberBandOptionTransientsMixed = 0x00000100,
RubberBandOptionTransientsSmooth = 0x00000200,
RubberBandOptionPhaseLaminar = 0x00000000,
RubberBandOptionPhaseIndependent = 0x00002000,
RubberBandOptionThreadingAuto = 0x00000000,
RubberBandOptionThreadingNever = 0x00010000,
RubberBandOptionThreadingAlways = 0x00020000,
RubberBandOptionWindowStandard = 0x00000000,
RubberBandOptionWindowShort = 0x00100000,
RubberBandOptionWindowLong = 0x00200000,
RubberBandOptionFormantShifted = 0x00000000,
RubberBandOptionFormantPreserved = 0x01000000,
RubberBandOptionPitchHighQuality = 0x00000000,
RubberBandOptionPitchHighSpeed = 0x02000000,
RubberBandOptionPitchHighConsistency = 0x04000000
};
typedef int RubberBandOptions;
struct RubberBandState_;
typedef struct RubberBandState_ *RubberBandState;
extern RubberBandState rubberband_new(unsigned int sampleRate,
unsigned int channels,
RubberBandOptions options,
double initialTimeRatio,
double initialPitchScale);
extern void rubberband_delete(RubberBandState);
extern void rubberband_reset(RubberBandState);
extern void rubberband_set_time_ratio(RubberBandState, double ratio);
extern void rubberband_set_pitch_scale(RubberBandState, double scale);
extern double rubberband_get_time_ratio(const RubberBandState);
extern double rubberband_get_pitch_scale(const RubberBandState);
extern unsigned int rubberband_get_latency(const RubberBandState);
extern void rubberband_set_transients_option(RubberBandState, RubberBandOptions options);
extern void rubberband_set_phase_option(RubberBandState, RubberBandOptions options);
extern void rubberband_set_formant_option(RubberBandState, RubberBandOptions options);
extern void rubberband_set_pitch_option(RubberBandState, RubberBandOptions options);
extern void rubberband_set_expected_input_duration(RubberBandState, unsigned int samples);
extern unsigned int rubberband_get_samples_required(const RubberBandState);
extern void rubberband_set_max_process_size(RubberBandState, unsigned int samples);
extern void rubberband_study(RubberBandState, const float *const *input, unsigned int samples, int final);
extern void rubberband_process(RubberBandState, const float *const *input, unsigned int samples, int final);
extern int rubberband_available(const RubberBandState);
extern unsigned int rubberband_retrieve(const RubberBandState, float *const *output, unsigned int samples);
extern unsigned int rubberband_get_channel_count(const RubberBandState);
extern void rubberband_calculate_stretch(RubberBandState);
extern void rubberband_set_debug_level(RubberBandState, int level);
extern void rubberband_set_default_debug_level(int level);
#ifdef __cplusplus
}
#endif
#endif
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