79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
/* -*- 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.
|
|
Copyright 2006 Chris Cannam.
|
|
|
|
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 _SPECTRAL_CENTROID_PLUGIN_H_
|
|
#define _SPECTRAL_CENTROID_PLUGIN_H_
|
|
|
|
#include <vamp-sdk/Plugin.h>
|
|
|
|
/**
|
|
* Example plugin that calculates the centre of gravity of the
|
|
* frequency domain representation of each block of audio.
|
|
*/
|
|
|
|
class SpectralCentroid : public Vamp::Plugin
|
|
{
|
|
public:
|
|
SpectralCentroid(float inputSampleRate);
|
|
virtual ~SpectralCentroid();
|
|
|
|
bool initialise(size_t channels, size_t stepSize, size_t blockSize);
|
|
void reset();
|
|
|
|
InputDomain getInputDomain() const { return FrequencyDomain; }
|
|
|
|
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;
|
|
|
|
FeatureSet process(const float *const *inputBuffers,
|
|
Vamp::RealTime timestamp);
|
|
|
|
FeatureSet getRemainingFeatures();
|
|
|
|
protected:
|
|
size_t m_stepSize;
|
|
size_t m_blockSize;
|
|
};
|
|
|
|
|
|
#endif
|