Vamp Plugin SDK

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*

    Vamp

    An API for audio analysis and feature extraction plugins.

    Centre for Digital Music, Queen Mary, University of London.

    This file copyright 2006 Dan Stowell.

    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 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.

    Except as contained in this notice, the names of the Centre for

    Digital Music; Queen Mary, University of London; and Chris Cannam

    shall not be used in advertising or otherwise to promote the sale,

    use or other dealings in this Software without prior written

    authorization.

*/

#ifndef _AMPLITUDE_FOLLOWER_PLUGIN_H_

#define _AMPLITUDE_FOLLOWER_PLUGIN_H_

#include "vamp-sdk/Plugin.h"

/**

 * Example plugin implementing the SuperCollider amplitude follower

 * function.

 */

class AmplitudeFollower : public Vamp::Plugin

{

public:

    AmplitudeFollower(float inputSampleRate);

    virtual ~AmplitudeFollower();

    bool initialise(size_t channels, size_t stepSize, size_t blockSize);

    void reset();

    InputDomain getInputDomain() const { return TimeDomain; }

    std::string getIdentifier() const;

    std::string getName() const;

    std::string getDescription() const;

    std::string getMaker() const;

    int getPluginVersion() const;

    std::string getCopyright() const;

    OutputList getOutputDescriptors() const;

    ParameterList getParameterDescriptors() const;

    float getParameter(std::string paramid) const;

    void setParameter(std::string paramid, float newval);

    FeatureSet process(const float *const *inputBuffers,

                       Vamp::RealTime timestamp);

    FeatureSet getRemainingFeatures();

protected:

    size_t m_stepSize;

    float  m_previn;

    float  m_clampcoef;

    float  m_relaxcoef;

};

#endif