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/* aKode: Resampler (fast)
Copyright (C) 2004 Allan Sandfeld Jensen <kde@carewolf.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef _AKODE_FAST_RESAMPLER_H
#define _AKODE_FAST_RESAMPLER_H
#include "resampler.h"
namespace aKode {
class AudioFrame;
//! Fast low quality resampler using linear interpolation
/*!
* This is the default resampler, which excels over the SRCResampler
* in being LGPL, fast and integer only, but the result is more
* noisy.
*
* The quality of resampling most relevant to low signal samples.
* For samples of 44100Hz/16bit or more, it is mostly irrelevant.
*/
class FastResampler : public Resampler {
public:
FastResampler();
bool doFrame(AudioFrame* in, AudioFrame* out);
void setSampleRate(unsigned int rate);
void setSpeed(float speed);
float speed;
unsigned int sample_rate;
};
class FastResamplerPlugin : public ResamplerPlugin {
public:
virtual FastResampler* openResampler();
};
extern "C" FastResamplerPlugin fast_resampler;
} // namespace
#endif
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