comirva.audio.extraction
Class AudioFeatureExtractionThread

java.lang.Object
  java.lang.Thread
      comirva.audio.extraction.AudioFeatureExtractionThread

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

FluctuationPatternExtractionThread, MandelEllisExtractionThread, TimbreDistributionExtractionThread

public abstract class AudioFeatureExtractionThread
extends Thread

This thread is intended to do a feature extraction batch job. Each file handed to the constructor will be process the given feature extractor. The priority of the thread is low, such that it may run in the background. Any kind of exception during the batch process are reported to the standard log and ignored.

This class is abstract because it has one template method, which should create a DataMatrix object by using the extracted features. Depending on the feature a specialized feature extraction thread may for example return a similarity matrix or a matrix containing vectors.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

(package private) AudioFeatureExtractor	featureExtractor
(package private) List<AudioFeature>	features
(package private) File[]	files
(package private) Vector<String>	meta
(package private) JLabel	statusBar
(package private) Workspace	ws

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

protected

AudioFeatureExtractionThread(AudioFeatureExtractor featureExtractor, File[] files, Workspace ws, JLabel statusBar) Creates a new audio feature extraction thread.

Method Summary

protected abstract void	createDataMatrix() Template method creating the audio feature specific DataMatrix.
void	run() Starts processing the feature extraction batch job.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

files

File[] files

featureExtractor

AudioFeatureExtractor featureExtractor

meta

Vector<String> meta

features

List<AudioFeature> features

ws

Workspace ws

statusBar

JLabel statusBar

Constructor Detail

AudioFeatureExtractionThread

protected AudioFeatureExtractionThread(AudioFeatureExtractor featureExtractor,
                                       File[] files,
                                       Workspace ws,
                                       JLabel statusBar)

Creates a new audio feature extraction thread.

Parameters:

featureExtractor - AudioFeatureExtractor the extractor, defining the extraction process

files - File[] the audio files to process

ws - Workspace the workspace object to store the result in

statusBar - JLabel the status bar to show some progress information

Method Detail

run

public void run()

Starts processing the feature extraction batch job.

Specified by:

run in interface Runnable

Overrides:

run in class Thread

createDataMatrix

protected abstract void createDataMatrix()

Template method creating the audio feature specific DataMatrix.