69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
/**
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* @author Bojan MARKOVIC
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* @author Edouard DUPIN
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* @copyright 2006, ChunkWare Music Software, OPEN-SOURCE
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* @license BSD-1 (see license file)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* * The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __AUDIO_ALGO_CHUNKWARE_COMPRESSOR_H__
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#define __AUDIO_ALGO_CHUNKWARE_COMPRESSOR_H__
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#include "header.h"
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#include "AttRelEnvelope.h"
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#include "Gain.h"
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namespace audio {
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namespace algo {
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namespace chunkware {
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class Compresssor : public AttRelEnvelope {
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public:
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Compresssor();
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virtual ~Compresssor() {}
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// parameters
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virtual void setThresh(double dB);
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virtual void setRatio(double dB);
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virtual double getThresh() const {
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return threshdB_;
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}
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virtual double getRatio() const {
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return ratio_;
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}
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// runtime
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// call before runtime (in resume())
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virtual void initRuntime();
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// compressor runtime process
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void process(double &in1, double &in2);
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// with stereo-linked key in
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void process(double &in1, double &in2, double keyLinked);
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private:
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// transfer function
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double threshdB_;//!< threshold (dB)
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double ratio_; //!< ratio (compression: < 1 ; expansion: > 1)
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// runtime variables
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double envdB_; //!< over-threshold envelope (dB)
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};
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}
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}
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}
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#endif
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