audio-algo-chunkware/audio/algo/chunkware/CompressorRms.hpp

/**
 * @author Bojan MARKOVIC
 * @author Edouard DUPIN
 * @copyright 2006, ChunkWare Music Software, OPEN-SOURCE
 * @license BSD-1 (see license file)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
#pragma once

#include <audio/algo/chunkware/Compressor.hpp>

namespace audio {
	namespace algo {
		namespace chunkware {
			class CompressorRms : public audio::algo::chunkware::Compressor {
				public:
					CompressorRms();
					virtual ~CompressorRms() {}
					// sample rate
					virtual void setSampleRate(double _sampleRate);
					// RMS window
					virtual void setWindow(double _ms);
					virtual double getWindow() const {
						return m_averager.getTc();
					}
				public:
					virtual void init();
					virtual void processDouble(double* _out, const double* _in, int8_t _nbChannel);
				protected:
					audio::algo::chunkware::EnvelopeDetector m_averager; //!< averager
					double m_averageSuares; //!< average of squares
			};
		}
	}
}