Package nzilbb.media.wav

Class TruncatingAudioInputStream

java.lang.Object

java.io.InputStream

javax.sound.sampled.AudioInputStream

nzilbb.media.wav.TruncatingAudioInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class TruncatingAudioInputStream
extends AudioInputStream

Input stream that truncates another input stream - i.e. read operations only return data between the given start time and end time.

Author:

Robert Fromont robert@fromont.net.nz

Constructor Summary

Constructors

Constructor	Description
TruncatingAudioInputStream(AudioInputStream audioInputStream, double dStart, double dEnd)	Constructor

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()
double	getEndSeconds()	EndSeconds accessor
long	getFrameLength()	Obtains the length of the audio data contained in the file, expressed in sample frames.
AudioInputStream	getInputStream()	InputStream accessor
double	getStartSeconds()	StartSeconds accessor
void	mark(int nReadLimit)
boolean	markSupported()
int	read()
int	read(byte[] abData, int nOffset, int nLength)
void	reset()
TruncatingAudioInputStream	setEndSeconds(double dNewEndSeconds)	EndSeconds mutator
TruncatingAudioInputStream	setInputStream(AudioInputStream isNewInputStream)	InputStream mutator
TruncatingAudioInputStream	setStartSeconds(double dNewStartSeconds)	StartSeconds mutator
long	skip(long lLength)

Methods inherited from class javax.sound.sampled.AudioInputStream

getFormat, read

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Detail

TruncatingAudioInputStream

public TruncatingAudioInputStream(AudioInputStream audioInputStream,
                                  double dStart,
                                  double dEnd)
                           throws IOException

Constructor

Throws:

IOException

Method Detail

getInputStream

public AudioInputStream getInputStream()

InputStream accessor

Returns:

The input stream that this is to truncate

setInputStream

public TruncatingAudioInputStream setInputStream(AudioInputStream isNewInputStream)

InputStream mutator

Parameters:

isNewInputStream - The input stream that this is to truncate

getStartSeconds

public double getStartSeconds()

StartSeconds accessor

Returns:

Start time in seconds

setStartSeconds

public TruncatingAudioInputStream setStartSeconds(double dNewStartSeconds)
                                           throws IOException

StartSeconds mutator

Parameters:

dNewStartSeconds - Start time in seconds

Throws:

IOException

getEndSeconds

public double getEndSeconds()

EndSeconds accessor

Returns:

End time in seconds Can be 0 to indicate the end of the stream.

setEndSeconds

public TruncatingAudioInputStream setEndSeconds(double dNewEndSeconds)

EndSeconds mutator

Parameters:

dNewEndSeconds - End time in seconds. Can be 0 to indicate the end of the stream.

read

public int read()
         throws IOException

Overrides:

read in class AudioInputStream

Throws:

IOException

read

public int read(byte[] abData,
                int nOffset,
                int nLength)
         throws IOException

Overrides:

read in class AudioInputStream

Throws:

IOException

getFrameLength

public long getFrameLength()

Obtains the length of the audio data contained in the file, expressed in sample frames.

Overrides:

getFrameLength in class AudioInputStream

Returns:

the number of sample frames of audio data in the file

skip

public long skip(long lLength)
          throws IOException

Overrides:

skip in class AudioInputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class AudioInputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class AudioInputStream

Throws:

IOException

mark

public void mark(int nReadLimit)

Overrides:

mark in class AudioInputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class AudioInputStream

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class AudioInputStream