edu.cmu.sphinx.frontend.util
Class ConcatAudioFileDataSource

java.lang.Object
  edu.cmu.sphinx.util.props.ConfigurableAdapter
      edu.cmu.sphinx.frontend.BaseDataProcessor
          edu.cmu.sphinx.frontend.util.AudioFileDataSource
              edu.cmu.sphinx.frontend.util.ConcatAudioFileDataSource

All Implemented Interfaces:

DataProcessor, Configurable, ReferenceSource

public class ConcatAudioFileDataSource
extends AudioFileDataSource
implements ReferenceSource

Concatenates a list of audio files as one continuous audio stream.

A DataStartSignal will be placed before the start of the first file, and a DataEndSignal after the last file. No DataStartSignal or DataEndSignal will be placed between them.

Author:

Holger Brandl

Nested Class Summary

(package private) class

ConcatAudioFileDataSource.InputStreamEnumeration The work of the concatenating of the audio files are done here.

Field Summary

(package private) java.util.List<java.net.URL>	batchFiles
private boolean	isInitialized
private java.net.URL	nextFile
private java.util.List<java.lang.String>	referenceList

Fields inherited from class edu.cmu.sphinx.frontend.util.AudioFileDataSource

AUDIO_FILE_LISTENERS, bigEndian, bytesPerRead, bytesPerValue, dataStream, fileListeners, PROP_BYTES_PER_READ, sampleRate, signedData

Fields inherited from class edu.cmu.sphinx.util.props.ConfigurableAdapter

logger

Constructor Summary

ConcatAudioFileDataSource()

ConcatAudioFileDataSource(int bytesPerRead, java.util.List<AudioFileProcessListener> listeners)

Method Summary

java.util.List<java.lang.String>	getReferences() Returns a list of all reference text.
void	initialize() Initializes a ConcatFileDataSource.
private static java.util.List<java.net.URL>	readDriver(java.lang.String fileName) Reads and verifies a driver file.
void	setAudioFile(java.net.URL audioFileURL, java.lang.String streamName) Sets the audio file from which the data-stream will be generated of.
void	setBatchFile(java.io.File batchFile)
void	setBatchFiles(java.util.List<java.io.File> files)
void	setBatchUrls(java.util.List<java.net.URL> urls)

Methods inherited from class edu.cmu.sphinx.frontend.util.AudioFileDataSource

addNewFileListener, getData, getSampleRate, isBigEndian, newProperties, removeNewFileListener, setAudioFile, setInputStream

Methods inherited from class edu.cmu.sphinx.frontend.BaseDataProcessor

getPredecessor, getTimer, setPredecessor

Methods inherited from class edu.cmu.sphinx.util.props.ConfigurableAdapter

getName, initLogger, toString

Methods inherited from class java.lang.Object

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

Field Detail

nextFile

private java.net.URL nextFile

referenceList

private java.util.List<java.lang.String> referenceList

isInitialized

private boolean isInitialized

batchFiles

java.util.List<java.net.URL> batchFiles

Constructor Detail

ConcatAudioFileDataSource

public ConcatAudioFileDataSource(int bytesPerRead,
                                 java.util.List<AudioFileProcessListener> listeners)

ConcatAudioFileDataSource

public ConcatAudioFileDataSource()

Method Detail

initialize

public void initialize()

Initializes a ConcatFileDataSource.

Specified by:

initialize in interface DataProcessor

Overrides:

initialize in class AudioFileDataSource

setBatchFile

public void setBatchFile(java.io.File batchFile)

setBatchFiles

public void setBatchFiles(java.util.List<java.io.File> files)

setBatchUrls

public void setBatchUrls(java.util.List<java.net.URL> urls)

readDriver

private static java.util.List<java.net.URL> readDriver(java.lang.String fileName)

Reads and verifies a driver file.

Parameters:

fileName -

setAudioFile

public void setAudioFile(java.net.URL audioFileURL,
                         java.lang.String streamName)

Description copied from class: AudioFileDataSource

Sets the audio file from which the data-stream will be generated of.

Overrides:

setAudioFile in class AudioFileDataSource

Parameters:

audioFileURL - The location of the audio file to use

streamName - The name of the InputStream. if null the complete path of the audio file will be uses as stream name.

getReferences

public java.util.List<java.lang.String> getReferences()

Returns a list of all reference text. Implements the getReferences() method of ReferenceSource.

Specified by:

getReferences in interface ReferenceSource

Returns:

a list of all reference text