/* -*- 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.
*/

#include "rubberband-c.h"
#include "RubberBandStretcher.h"

struct RubberBandState_
{
    RubberBand::RubberBandStretcher *m_s;
};

RubberBandState rubberband_new(unsigned int sampleRate,
                               unsigned int channels,
                               RubberBandOptions options,
                               double initialTimeRatio,
                               double initialPitchScale)
{
    RubberBandState_ *state = new RubberBandState_();
    state->m_s = new RubberBand::RubberBandStretcher
        (sampleRate, channels, options,
         initialTimeRatio, initialPitchScale);
    return state;
}

void rubberband_delete(RubberBandState state)
{
    delete state->m_s;
    delete state;
}

void rubberband_reset(RubberBandState state)
{
    state->m_s->reset();
}

void rubberband_set_time_ratio(RubberBandState state, double ratio)
{
    state->m_s->setTimeRatio(ratio);
}

void rubberband_set_pitch_scale(RubberBandState state, double scale)
{
    state->m_s->setPitchScale(scale);
}

double rubberband_get_time_ratio(const RubberBandState state) 
{
    return state->m_s->getTimeRatio();
}

double rubberband_get_pitch_scale(const RubberBandState state)
{
    return state->m_s->getPitchScale();
}

unsigned int rubberband_get_latency(const RubberBandState state) 
{
    return state->m_s->getLatency();
}

void rubberband_set_transients_option(RubberBandState state, RubberBandOptions options)
{
    state->m_s->setTransientsOption(options);
}

void rubberband_set_phase_option(RubberBandState state, RubberBandOptions options)
{
    state->m_s->setPhaseOption(options);
}

void rubberband_set_formant_option(RubberBandState state, RubberBandOptions options)
{
    state->m_s->setFormantOption(options);
}

void rubberband_set_pitch_option(RubberBandState state, RubberBandOptions options)
{
    state->m_s->setPitchOption(options);
}

void rubberband_set_expected_input_duration(RubberBandState state, unsigned int samples)
{
    state->m_s->setExpectedInputDuration(samples);
}

unsigned int rubberband_get_samples_required(const RubberBandState state)
{
    return state->m_s->getSamplesRequired();
}

void rubberband_set_max_process_size(RubberBandState state, unsigned int samples)
{
    state->m_s->setMaxProcessSize(samples);
}

void rubberband_study(RubberBandState state, const float *const *input, unsigned int samples, int final)
{
    state->m_s->study(input, samples, final != 0);
}

void rubberband_process(RubberBandState state, const float *const *input, unsigned int samples, int final)
{
    state->m_s->process(input, samples, final != 0);
}

int rubberband_available(const RubberBandState state)
{
    return state->m_s->available();
}

unsigned int rubberband_retrieve(const RubberBandState state, float *const *output, unsigned int samples)
{
    return state->m_s->retrieve(output, samples);
}

unsigned int rubberband_get_channel_count(const RubberBandState state)
{
    return state->m_s->getChannelCount();
}

void rubberband_calculate_stretch(RubberBandState state)
{
    state->m_s->calculateStretch();
}

void rubberband_set_debug_level(RubberBandState state, int level)
{
    state->m_s->setDebugLevel(level);
}

void rubberband_set_default_debug_level(int level)
{
    RubberBand::RubberBandStretcher::setDefaultDebugLevel(level);
}