at.tuwien.ifs.feature.extraction.audio
Class MultipleFileExtractor

java.lang.Object
  at.tuwien.ifs.feature.extraction.audio.MultipleFileExtractor

public class MultipleFileExtractor
extends java.lang.Object

Copyright Vienna University of Technology

Version:

$Id: MultipleFileExtractor.java 216 2011-05-07 11:04:26Z mayer $

Author:

Thomas Lidy, Jakob Frank

Field Summary

private static java.lang.String[]	DEFAULT_AUDIO_EXTENSIONS
private ExtractionDispatcher	dispatcher
private int	parallelThreads
(package private) static boolean	verboose
static java.lang.String	VERSION_STRING

Constructor Summary

MultipleFileExtractor()

MultipleFileExtractor(int extractionThreads)

Method Summary

void	cancelExtraction()
private static void	checkFeatureExtractionOptions(FeatureExtractionOptions opt)
static long	checkFiles(java.util.List<FeatureVectorData> fileList, java.lang.String baseDir)
static java.util.List<FeatureVectorData>	createExtractionList(java.io.File file, FeatureExtractionOptions opt) extract files recursively from directory, search for standard audio extensions
static java.util.List<FeatureVectorData>	createExtractionList(java.io.File file, java.lang.String[] fileExtensions, FeatureExtractionOptions opt) extract files recursively from directory, search for defined audio extensions provided as parameter
void	extractListOfFiles(java.util.List<FeatureVectorData> featureVectorMetaDataList, FeatureExtractionOptions opt, MainGUI graphic) extract features from a list of files provided by a Java List object
static java.lang.String	getAbsoluteFilename(java.lang.String filename, java.lang.String baseDir) adds base directory at the beginning of relative filenames, only if base directory is non-null and not empty string
static long	getFileList(java.io.File file, java.util.List<java.io.File> result, java.io.FileFilter filter) constructs a FileList from recursing a directory for files with a given list of extensions
int	getParallelThreads()
static java.lang.String	getRelativeFilename(java.io.File file, java.lang.String baseDir) cuts base directory out of absolute filename
static void	main(java.lang.String[] args)
private static void	setCMDArgs(com.martiansoftware.jsap.JSAP jsap)
void	setParallelThreads(int parallelThreads)

Methods inherited from class java.lang.Object

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

Field Detail

VERSION_STRING

public static final java.lang.String VERSION_STRING

See Also:

Constant Field Values

DEFAULT_AUDIO_EXTENSIONS

private static final java.lang.String[] DEFAULT_AUDIO_EXTENSIONS

verboose

static boolean verboose

parallelThreads

private int parallelThreads

dispatcher

private ExtractionDispatcher dispatcher

Constructor Detail

MultipleFileExtractor

public MultipleFileExtractor(int extractionThreads)

MultipleFileExtractor

public MultipleFileExtractor()

Method Detail

main

public static void main(java.lang.String[] args)

setCMDArgs

private static void setCMDArgs(com.martiansoftware.jsap.JSAP jsap)
                        throws com.martiansoftware.jsap.JSAPException

Parameters:

jsap -

Throws:

com.martiansoftware.jsap.JSAPException

checkFeatureExtractionOptions

private static void checkFeatureExtractionOptions(FeatureExtractionOptions opt)

createExtractionList

public static java.util.List<FeatureVectorData> createExtractionList(java.io.File file,
                                                                     FeatureExtractionOptions opt)

extract files recursively from directory, search for standard audio extensions

Parameters:

file - directory, or, if only 1 single file is to be extracted: file

opt - Feature Extraction options

Returns:

a list of FeatureVectorData containing the extracted features.

createExtractionList

public static java.util.List<FeatureVectorData> createExtractionList(java.io.File file,
                                                                     java.lang.String[] fileExtensions,
                                                                     FeatureExtractionOptions opt)

extract files recursively from directory, search for defined audio extensions provided as parameter

Parameters:

file - directory, or, if only 1 single file is to be extracted: file

fileExtensions - a string array containing file extensions for which should be searched while recursing directories

opt - Feature Extraction options

Returns:

a list of FeatureVectorData containing the extracted features.

getRelativeFilename

public static java.lang.String getRelativeFilename(java.io.File file,
                                                   java.lang.String baseDir)

cuts base directory out of absolute filename

Parameters:

file - File object of a file, given with absolute filename

baseDir - String containing base directory, with file separator at the end

Returns:

relative filename

getAbsoluteFilename

public static java.lang.String getAbsoluteFilename(java.lang.String filename,
                                                   java.lang.String baseDir)

adds base directory at the beginning of relative filenames, only if base directory is non-null and not empty string

Parameters:

filename - String containing relative filename

baseDir - String containing base directory, with file separator at the end

Returns:

String containing absolute filename (if base directory is set)

extractListOfFiles

public void extractListOfFiles(java.util.List<FeatureVectorData> featureVectorMetaDataList,
                               FeatureExtractionOptions opt,
                               MainGUI graphic)

extract features from a list of files provided by a Java List object

Parameters:

featureVectorMetaDataList - List object containing FeatureVectorData objects

opt - Feature Extraction options

graphic - reference to the main gui, may be null

checkFiles

public static long checkFiles(java.util.List<FeatureVectorData> fileList,
                              java.lang.String baseDir)

getFileList

public static long getFileList(java.io.File file,
                               java.util.List<java.io.File> result,
                               java.io.FileFilter filter)

constructs a FileList from recursing a directory for files with a given list of extensions

Parameters:

file - directory to start recursion

result - resulting List of files found

filter - a file filter used to determine the files to include in the list.

Returns:

the sum of the size of all files found in bytes

getParallelThreads

public int getParallelThreads()

setParallelThreads

public void setParallelThreads(int parallelThreads)

cancelExtraction

public void cancelExtraction()