VampPluginSDK 2.10
AmplitudeFollower.h
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1/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
2
3/*
4 Vamp
5
6 An API for audio analysis and feature extraction plugins.
7
8 Centre for Digital Music, Queen Mary, University of London.
9 This file copyright 2006 Dan Stowell.
10
11 Permission is hereby granted, free of charge, to any person
12 obtaining a copy of this software and associated documentation
13 files (the "Software"), to deal in the Software without
14 restriction, including without limitation the rights to use, copy,
15 modify, merge, publish, distribute, sublicense, and/or sell copies
16 of the Software, and to permit persons to whom the Software is
17 furnished to do so, subject to the following conditions:
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19 The above copyright notice and this permission notice shall be
20 included in all copies or substantial portions of the Software.
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22 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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27 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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30 Except as contained in this notice, the names of the Centre for
31 Digital Music; Queen Mary, University of London; and Chris Cannam
32 shall not be used in advertising or otherwise to promote the sale,
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35*/
36
37#ifndef _AMPLITUDE_FOLLOWER_PLUGIN_H_
38#define _AMPLITUDE_FOLLOWER_PLUGIN_H_
39
40#include "vamp-sdk/Plugin.h"
41
48{
49public:
50 AmplitudeFollower(float inputSampleRate);
51 virtual ~AmplitudeFollower();
52
53 bool initialise(size_t channels, size_t stepSize, size_t blockSize);
54 void reset();
55
57
58 std::string getIdentifier() const;
59 std::string getName() const;
60 std::string getDescription() const;
61 std::string getMaker() const;
62 int getPluginVersion() const;
63 std::string getCopyright() const;
64
66
68 float getParameter(std::string paramid) const;
69 void setParameter(std::string paramid, float newval);
70
71 FeatureSet process(const float *const *inputBuffers,
72 Vamp::RealTime timestamp);
73
75
76protected:
77 size_t m_stepSize;
78 float m_previn;
81};
82
83
84#endif
Example plugin implementing the SuperCollider amplitude follower function.
FeatureSet getRemainingFeatures()
After all blocks have been processed, calculate and return any remaining features derived from the co...
OutputList getOutputDescriptors() const
Get the outputs of this plugin.
FeatureSet process(const float *const *inputBuffers, Vamp::RealTime timestamp)
Process a single block of input data.
std::string getName() const
Get a human-readable name or title of the plugin.
ParameterList getParameterDescriptors() const
Get the controllable parameters of this plugin.
float getParameter(std::string paramid) const
Get the value of a named parameter.
InputDomain getInputDomain() const
Get the plugin's required input domain.
std::string getDescription() const
Get a human-readable description for the plugin, typically a line of text that may optionally be disp...
std::string getMaker() const
Get the name of the author or vendor of the plugin in human-readable form.
std::string getCopyright() const
Get the copyright statement or licensing summary for the plugin.
void reset()
Reset the plugin after use, to prepare it for another clean run.
std::string getIdentifier() const
Get the computer-usable name of the plugin.
int getPluginVersion() const
Get the version number of the plugin.
void setParameter(std::string paramid, float newval)
Set a named parameter.
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,...
std::vector< ParameterDescriptor > ParameterList
Vamp::Plugin is a base class for plugin instance classes that provide feature extraction from audio o...
std::vector< OutputDescriptor > OutputList
std::map< int, FeatureList > FeatureSet
RealTime represents time values to nanosecond precision with accurate arithmetic and frame-rate conve...