bsnes/supergameboy/common/resample/resampler.h

44 lines
2.0 KiB
C++
Executable File

/***************************************************************************
* Copyright (C) 2008 by Sindre Aamås *
* aamas@stud.ntnu.no *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License version 2 as *
* published by the Free Software Foundation. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License version 2 for more details. *
* *
* You should have received a copy of the GNU General Public License *
* version 2 along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef RESAMPLER_H
#define RESAMPLER_H
#include <cstddef>
class Resampler {
long inRate_;
long outRate_;
protected:
void setRate(const long inRate, const long outRate) { inRate_ = inRate; outRate_ = outRate; }
public:
Resampler() : inRate_(0), outRate_(0) {}
long inRate() const { return inRate_; }
long outRate() const { return outRate_; }
virtual void adjustRate(long inRate, long outRate) = 0;
virtual void exactRatio(unsigned long &mul, unsigned long &div) const = 0;
virtual std::size_t maxOut(std::size_t inlen) const = 0;
virtual std::size_t resample(short *out, const short *in, std::size_t inlen) = 0;
virtual ~Resampler() {}
};
#endif