Paul Davis
7da75446b8
git-svn-id: svn://localhost/ardour2/branches/3.0@3713 d708f5d6-7413-0410-9779-e7cbd77b26cf
59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
/* -*- 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_TIMESTRETCHER_H_
|
|
#define _RUBBERBAND_TIMESTRETCHER_H_
|
|
|
|
#include <sys/types.h>
|
|
|
|
namespace RubberBand
|
|
{
|
|
|
|
/**
|
|
* Base class for time stretchers. RubberBand currently provides only
|
|
* a single subclass implementation.
|
|
*
|
|
* @see RubberBandStretcher
|
|
*/
|
|
class TimeStretcher
|
|
{
|
|
public:
|
|
TimeStretcher(size_t sampleRate, size_t channels) :
|
|
m_sampleRate(sampleRate),
|
|
m_channels(channels)
|
|
{ }
|
|
virtual ~TimeStretcher()
|
|
{ }
|
|
|
|
virtual void reset() = 0;
|
|
virtual void setTimeRatio(double ratio) = 0;
|
|
virtual void setPitchScale(double scale) = 0;
|
|
virtual size_t getLatency() const = 0;
|
|
|
|
virtual void study(const float *const *input, size_t samples, bool final) = 0;
|
|
virtual size_t getSamplesRequired() const = 0;
|
|
virtual void process(const float *const *input, size_t samples, bool final) = 0;
|
|
virtual int available() const = 0;
|
|
virtual size_t retrieve(float *const *output, size_t samples) const = 0;
|
|
|
|
protected:
|
|
size_t m_sampleRate;
|
|
size_t m_channels;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|
|
|