Resampler.h
/*
* This file is part of libsidplayfp, a SID player engine.
*
* Copyright 2011-2013 Leandro Nini <drfiemost@users.sourceforge.net>
* Copyright 2007-2010 Antti Lankila
*
* 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.
*
* 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef RESAMPLER_H
#define RESAMPLER_H
namespace reSIDfp
{
class Resampler
{
protected:
virtual int output() const = 0;
Resampler() {}
public:
virtual ~Resampler() {}
virtual bool input(int sample) = 0;
short getOutput() const
{
const int value = output();
// Clip signed integer value into the -32768,32767 range.
#if 1
// This requires two's complement integer
return ((value + 0x8000) & ~0xFFFF) ? (value >> 31) ^ 0x7FFF : value;
#else
return (value < -32768) ? -32768 : (value > 32767) ? 32767 : value;
#endif
}
virtual void reset() = 0;
};
} // namespace reSIDfp
#endif
reSIDfp::Resampler::getOutput
short getOutput() const
Definition: Resampler.h:57
reSIDfp::Resampler
Definition: Resampler.h:34
reSIDfp::Resampler::input
virtual bool input(int sample)=0