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61 lines
1.7 KiB
61 lines
1.7 KiB
/* aKode: Resampler (fast)
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Copyright (C) 2004 Allan Sandfeld Jensen <kde@carewolf.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef _AKODE_FAST_RESAMPLER_H
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#define _AKODE_FAST_RESAMPLER_H
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#include "resampler.h"
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namespace aKode {
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class AudioFrame;
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//! Fast low quality resampler using linear interpolation
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/*!
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* This is the default resampler, which excels over the SRCResampler
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* in being LGPL, fast and integer only, but the result is more
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* noisy.
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*
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* The quality of resampling most relevant to low signal samples.
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* For samples of 44100Hz/16bit or more, it is mostly irrelevant.
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*/
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class FastResampler : public Resampler {
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public:
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FastResampler();
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bool doFrame(AudioFrame* in, AudioFrame* out);
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void setSampleRate(unsigned int rate);
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void setSpeed(float speed);
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float speed;
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unsigned int sample_rate;
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};
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class FastResamplerPlugin : public ResamplerPlugin {
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public:
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virtual FastResampler* openResampler();
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};
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extern "C" FastResamplerPlugin fast_resampler;
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} // namespace
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#endif
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