57 Plugin(inputSampleRate),
72 return "amplitudefollower";
78 return "Amplitude Follower";
84 return "Track the amplitude of the audio signal";
90 return "Vamp SDK Example Plugins";
102 return "Code copyright 2006 Dan Stowell; method from SuperCollider. Freely redistributable (BSD license)";
135 sca.
name =
"Amplitude";
136 sca.
description =
"The peak tracked amplitude for the current processing block";
155 att.
name =
"Attack time";
156 att.
description =
"The 60dB convergence time for an increase in amplitude";
167 dec.
name =
"Release time";
168 dec.
description =
"The 60dB convergence time for a decrease in amplitude";
182 if (paramid ==
"attack") {
184 }
else if (paramid ==
"release") {
191 if (paramid ==
"attack") {
193 }
else if (paramid ==
"release") {
205 cerr <<
"ERROR: AmplitudeFollower::process: "
206 <<
"AmplitudeFollower has not been initialised"
220 val = fabs(inputBuffers[0][i]);
228 if (val > peak) peak = val;
237 feature.
values.push_back(peak);
238 returnFeatures[0].push_back(feature);
240 return returnFeatures;
std::vector< OutputDescriptor > OutputList
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, step size (window increment, in sample frames) and block size (window size, in sample frames).
OutputList getOutputDescriptors() const
Get the outputs of this plugin.
AmplitudeFollower(float inputSampleRate)
An implementation of SuperCollider's amplitude-follower algorithm as a simple Vamp plugin...
bool hasFixedBinCount
True if the output has the same number of values per sample for every output sample.
std::vector< float > values
Results for a single sample of this feature.
std::map< int, FeatureList > FeatureSet
std::string identifier
The name of the parameter, in computer-usable form.
std::string description
A human-readable short text describing the output.
std::string identifier
The name of the output, in computer-usable form.
FeatureSet getRemainingFeatures()
After all blocks have been processed, calculate and return any remaining features derived from the co...
std::string name
The human-readable name of the parameter.
std::string getMaker() const
Get the name of the author or vendor of the plugin in human-readable form.
float minValue
The minimum value of the parameter.
std::string unit
The unit of the parameter, in human-readable form.
std::string unit
The unit of the output, in human-readable form.
std::string name
The human-readable name of the output.
RealTime represents time values to nanosecond precision with accurate arithmetic and frame-rate conve...
bool hasTimestamp
True if an output feature has its own timestamp.
std::string description
A human-readable short text describing the parameter.
float maxValue
The maximum value of the parameter.
std::string getIdentifier() const
Get the computer-usable name of the plugin.
std::string getDescription() const
Get a human-readable description for the plugin, typically a line of text that may optionally be disp...
void reset()
Reset the plugin after use, to prepare it for another clean run.
std::string getName() const
Get a human-readable name or title of the plugin.
std::string getCopyright() const
Get the copyright statement or licensing summary for the plugin.
ParameterList getParameterDescriptors() const
Get the controllable parameters of this plugin.
Results from each process() align with that call's block start.
virtual size_t getMaxChannelCount() const
Get the maximum supported number of input channels.
size_t binCount
The number of values per result of the output.
int getPluginVersion() const
Get the version number of the plugin.
bool isQuantized
True if the output values are quantized to a particular resolution.
float defaultValue
The default value of the parameter.
void setParameter(std::string paramid, float newval)
Set a named parameter.
virtual size_t getMinChannelCount() const
Get the minimum supported number of input channels.
FeatureSet process(const float *const *inputBuffers, Vamp::RealTime timestamp)
Process a single block of input data.
bool isQuantized
True if the parameter values are quantized to a particular resolution.
virtual ~AmplitudeFollower()
SampleType sampleType
Positioning in time of the output results.
float getParameter(std::string paramid) const
Get the value of a named parameter.
bool hasKnownExtents
True if the results in each output bin fall within a fixed numeric range (minimum and maximum values)...
std::vector< ParameterDescriptor > ParameterList