Paul Davis
1ff9e8afc0
git-svn-id: svn://localhost/ardour2/branches/3.0@4982 d708f5d6-7413-0410-9779-e7cbd77b26cf
122 lines
4.4 KiB
C
122 lines
4.4 KiB
C
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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Rubber Band
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An audio time-stretching and pitch-shifting library.
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Copyright 2007-2008 Chris Cannam.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#ifndef _RUBBERBAND_C_API_H_
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#define _RUBBERBAND_C_API_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define RUBBERBAND_VERSION "1.3.0-gpl"
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#define RUBBERBAND_API_MAJOR_VERSION 2
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#define RUBBERBAND_API_MINOR_VERSION 0
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/**
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* This is a C-linkage interface to the Rubber Band time stretcher.
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*
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* This is a wrapper interface: the primary interface is in C++ and is
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* defined and documented in RubberBandStretcher.h. The library
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* itself is implemented in C++, and requires C++ standard library
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* support even when using the C-linkage API.
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*
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* Please see RubberBandStretcher.h for documentation.
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*
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* If you are writing to the C++ API, do not include this header.
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*/
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enum RubberBandOption {
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RubberBandOptionProcessOffline = 0x00000000,
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RubberBandOptionProcessRealTime = 0x00000001,
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RubberBandOptionStretchElastic = 0x00000000,
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RubberBandOptionStretchPrecise = 0x00000010,
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RubberBandOptionTransientsCrisp = 0x00000000,
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RubberBandOptionTransientsMixed = 0x00000100,
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RubberBandOptionTransientsSmooth = 0x00000200,
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RubberBandOptionPhaseLaminar = 0x00000000,
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RubberBandOptionPhaseIndependent = 0x00002000,
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RubberBandOptionThreadingAuto = 0x00000000,
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RubberBandOptionThreadingNever = 0x00010000,
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RubberBandOptionThreadingAlways = 0x00020000,
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RubberBandOptionWindowStandard = 0x00000000,
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RubberBandOptionWindowShort = 0x00100000,
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RubberBandOptionWindowLong = 0x00200000,
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RubberBandOptionFormantShifted = 0x00000000,
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RubberBandOptionFormantPreserved = 0x01000000,
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RubberBandOptionPitchHighQuality = 0x00000000,
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RubberBandOptionPitchHighSpeed = 0x02000000,
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RubberBandOptionPitchHighConsistency = 0x04000000
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};
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typedef int RubberBandOptions;
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struct RubberBandState_;
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typedef struct RubberBandState_ *RubberBandState;
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extern RubberBandState rubberband_new(unsigned int sampleRate,
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unsigned int channels,
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RubberBandOptions options,
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double initialTimeRatio,
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double initialPitchScale);
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extern void rubberband_delete(RubberBandState);
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extern void rubberband_reset(RubberBandState);
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extern void rubberband_set_time_ratio(RubberBandState, double ratio);
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extern void rubberband_set_pitch_scale(RubberBandState, double scale);
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extern double rubberband_get_time_ratio(const RubberBandState);
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extern double rubberband_get_pitch_scale(const RubberBandState);
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extern unsigned int rubberband_get_latency(const RubberBandState);
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extern void rubberband_set_transients_option(RubberBandState, RubberBandOptions options);
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extern void rubberband_set_phase_option(RubberBandState, RubberBandOptions options);
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extern void rubberband_set_formant_option(RubberBandState, RubberBandOptions options);
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extern void rubberband_set_pitch_option(RubberBandState, RubberBandOptions options);
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extern void rubberband_set_expected_input_duration(RubberBandState, unsigned int samples);
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extern unsigned int rubberband_get_samples_required(const RubberBandState);
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extern void rubberband_set_max_process_size(RubberBandState, unsigned int samples);
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extern void rubberband_study(RubberBandState, const float *const *input, unsigned int samples, int final);
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extern void rubberband_process(RubberBandState, const float *const *input, unsigned int samples, int final);
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extern int rubberband_available(const RubberBandState);
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extern unsigned int rubberband_retrieve(const RubberBandState, float *const *output, unsigned int samples);
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extern unsigned int rubberband_get_channel_count(const RubberBandState);
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extern void rubberband_calculate_stretch(RubberBandState);
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extern void rubberband_set_debug_level(RubberBandState, int level);
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extern void rubberband_set_default_debug_level(int level);
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#ifdef __cplusplus
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}
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#endif
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#endif
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