ZeroCrossing.h
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/* -*- 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
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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,
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*/
#ifndef _ZERO_CROSSING_PLUGIN_H_
#define _ZERO_CROSSING_PLUGIN_H_
#include "vamp-sdk/Plugin.h"
class ZeroCrossing : public Vamp::Plugin
{
public:
ZeroCrossing(float inputSampleRate);
virtual ~ZeroCrossing();
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;
FeatureSet process(const float *const *inputBuffers,
Vamp::RealTime timestamp);
FeatureSet getRemainingFeatures();
protected:
size_t m_stepSize;
float m_previousSample;
};
#endif
ZeroCrossing::getOutputDescriptors
OutputList getOutputDescriptors() const
Get the outputs of this plugin.
Definition: ZeroCrossing.cpp:112
ZeroCrossing::m_stepSize
size_t m_stepSize
Definition: ZeroCrossing.h:73
ZeroCrossing::getMaker
std::string getMaker() const
Get the name of the author or vendor of the plugin in human-readable form.
Definition: ZeroCrossing.cpp:77
ZeroCrossing::getName
std::string getName() const
Get a human-readable name or title of the plugin.
Definition: ZeroCrossing.cpp:65
ZeroCrossing::reset
void reset()
Reset the plugin after use, to prepare it for another clean run.
Definition: ZeroCrossing.cpp:106
ZeroCrossing::m_previousSample
float m_previousSample
Definition: ZeroCrossing.h:74
Vamp::Plugin::InputDomain
InputDomain
Definition: vamp-sdk/Plugin.h:152
ZeroCrossing::getIdentifier
std::string getIdentifier() const
Get the computer-usable name of the plugin.
Definition: ZeroCrossing.cpp:59
ZeroCrossing::ZeroCrossing
ZeroCrossing(float inputSampleRate)
Definition: ZeroCrossing.cpp:47
ZeroCrossing::process
FeatureSet process(const float *const *inputBuffers, Vamp::RealTime timestamp)
Process a single block of input data.
Definition: ZeroCrossing.cpp:143
ZeroCrossing::getPluginVersion
int getPluginVersion() const
Get the version number of the plugin.
Definition: ZeroCrossing.cpp:83
Vamp::Plugin
Definition: vamp-sdk/Plugin.h:124
Vamp::Plugin::OutputList
std::vector< OutputDescriptor > OutputList
Definition: vamp-sdk/Plugin.h:335
ZeroCrossing::getRemainingFeatures
FeatureSet getRemainingFeatures()
After all blocks have been processed, calculate and return any remaining features derived from the co...
Definition: ZeroCrossing.cpp:192
ZeroCrossing::getDescription
std::string getDescription() const
Get a human-readable description for the plugin, typically a line of text that may optionally be disp...
Definition: ZeroCrossing.cpp:71
Vamp::Plugin::TimeDomain
@ TimeDomain
Definition: vamp-sdk/Plugin.h:152
ZeroCrossing::initialise
bool initialise(size_t channels, size_t stepSize, size_t blockSize)
Initialise a plugin to prepare it for use with the given number of input channels,...
Definition: ZeroCrossing.cpp:95
ZeroCrossing
Example plugin that calculates the positions and density of zero-crossing points in an audio waveform...
Definition: ZeroCrossing.h:47
Plugin.h
ZeroCrossing::getCopyright
std::string getCopyright() const
Get the copyright statement or licensing summary for the plugin.
Definition: ZeroCrossing.cpp:89
Vamp::RealTime
Definition: vamp-sdk/RealTime.h:66
ZeroCrossing::getInputDomain
InputDomain getInputDomain() const
Get the plugin's required input domain.
Definition: ZeroCrossing.h:56
ZeroCrossing::~ZeroCrossing
virtual ~ZeroCrossing()
Definition: ZeroCrossing.cpp:54
Vamp::Plugin::FeatureSet
std::map< int, FeatureList > FeatureSet
Definition: vamp-sdk/Plugin.h:395