org.tritonus.sampled.convert

Class SampleRateConversionProvider.SampleRateConverterStream

java.lang.Object

java.io.InputStream

javax.sound.sampled.AudioInputStream

org.tritonus.sampled.convert.SampleRateConversionProvider.SampleRateConverterStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, org.tritonus.share.sampled.FloatSampleInput

Enclosing class:

SampleRateConversionProvider

public static class SampleRateConversionProvider.SampleRateConverterStream
extends javax.sound.sampled.AudioInputStream
implements org.tritonus.share.sampled.FloatSampleInput

SampleRateConverterStream

Field Summary

Fields

Modifier and Type	Field and Description
static int	LINEAR_INTERPOLATION Conversion algorithm
static int	RESAMPLE Conversion algorithm
static int	SAMPLE_AND_HOLD Conversion algorithm

Fields inherited from class javax.sound.sampled.AudioInputStream

format, frameLength, framePos, frameSize

Constructor Summary

Constructors

Constructor and Description
SampleRateConverterStream(javax.sound.sampled.AudioInputStream sourceStream, javax.sound.sampled.AudioFormat targetFormat)
SampleRateConverterStream(org.tritonus.share.sampled.FloatSampleInput sourceInput, javax.sound.sampled.AudioFormat targetFormat, long frameLength)

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
protected void	convertLinearInterpolation1(float[] inSamples, double inSampleOffset, int inSampleCount, double increment, float[] outSamples, int outSampleOffset, int outSampleCount, float[] history, int historyLength)
protected void	convertSampleAndHold1(float[] inSamples, double inSampleOffset, int inSampleCount, double increment, float[] outSamples, int outSampleOffset, int outSampleCount, float[] history, int historyLength)
void	flush() Flushes the internal buffers
int	getChannels()
int	getConversionAlgorithm()
int	getFrameSize()
float	getSampleRate()
int	getSourceFrameSize()
float	getTargetSampleRate()
boolean	isClosed()
boolean	isDone()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] abData)
int	read(byte[] abData, int nOffset, int nLength) Read nLength bytes that will be the converted samples of the original inputStream.
void	read(org.tritonus.share.sampled.FloatSampleBuffer outBuffer)
void	read(org.tritonus.share.sampled.FloatSampleBuffer outBuffer, int offset, int count) Main read method.
void	reset()
void	setConversionAlgorithm(int algo)
void	setTargetSampleRate(float sr)
long	skip(long nSkip)
protected long	sourceBytes2targetBytes(long sourceBytes)
protected double	sourceFrames2targetFrames(double sourceFrames)
protected long	targetBytes2sourceBytes(long targetBytes)
protected double	targetFrames2sourceFrames(double targetFrames)

Methods inherited from class javax.sound.sampled.AudioInputStream

getFormat, getFrameLength

Methods inherited from class java.lang.Object

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

Field Detail

SAMPLE_AND_HOLD

public static final int SAMPLE_AND_HOLD

Conversion algorithm

See Also:

Constant Field Values

LINEAR_INTERPOLATION

public static final int LINEAR_INTERPOLATION

Conversion algorithm

See Also:

Constant Field Values

RESAMPLE

public static final int RESAMPLE

Conversion algorithm

See Also:

Constant Field Values

Constructor Detail

SampleRateConverterStream

public SampleRateConverterStream(javax.sound.sampled.AudioInputStream sourceStream,
                                 javax.sound.sampled.AudioFormat targetFormat)

SampleRateConverterStream

public SampleRateConverterStream(org.tritonus.share.sampled.FloatSampleInput sourceInput,
                                 javax.sound.sampled.AudioFormat targetFormat,
                                 long frameLength)

Method Detail

convertSampleAndHold1

protected void convertSampleAndHold1(float[] inSamples,
                                     double inSampleOffset,
                                     int inSampleCount,
                                     double increment,
                                     float[] outSamples,
                                     int outSampleOffset,
                                     int outSampleCount,
                                     float[] history,
                                     int historyLength)

convertLinearInterpolation1

protected void convertLinearInterpolation1(float[] inSamples,
                                           double inSampleOffset,
                                           int inSampleCount,
                                           double increment,
                                           float[] outSamples,
                                           int outSampleOffset,
                                           int outSampleCount,
                                           float[] history,
                                           int historyLength)

getChannels

public int getChannels()

Specified by:

getChannels in interface org.tritonus.share.sampled.FloatSampleInput

getSampleRate

public float getSampleRate()

Specified by:

getSampleRate in interface org.tritonus.share.sampled.FloatSampleInput

isDone

public boolean isDone()

Specified by:

isDone in interface org.tritonus.share.sampled.FloatSampleInput

read

public void read(org.tritonus.share.sampled.FloatSampleBuffer outBuffer)

Specified by:

read in interface org.tritonus.share.sampled.FloatSampleInput

read

public void read(org.tritonus.share.sampled.FloatSampleBuffer outBuffer,
                 int offset,
                 int count)

Main read method. It blocks until all samples are converted or the source stream is at its end or closed.
The sourceStream's sample rate is converted following the current setting of conversionAlgorithm. At most outBuffer.getSampleCount() are converted. In general, if outBuffer.getSampleCount()) is less after processing this function, then it is an indicator that it was the last block to be processed.

Specified by:

read in interface org.tritonus.share.sampled.FloatSampleInput

Parameters:

outBuffer - the buffer that the converted samples will be written to.

Throws:

java.lang.IllegalArgumentException - when outBuffer's channel count does not match

See Also:

setConversionAlgorithm(int)

sourceFrames2targetFrames

protected double sourceFrames2targetFrames(double sourceFrames)

targetFrames2sourceFrames

protected double targetFrames2sourceFrames(double targetFrames)

sourceBytes2targetBytes

protected long sourceBytes2targetBytes(long sourceBytes)

targetBytes2sourceBytes

protected long targetBytes2sourceBytes(long targetBytes)

getFrameSize

public int getFrameSize()

getSourceFrameSize

public int getSourceFrameSize()

read

public int read()
         throws java.io.IOException

Overrides:

read in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

read

public int read(byte[] abData)
         throws java.io.IOException

Overrides:

read in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

See Also:

read(byte[], int, int)

read

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

Read nLength bytes that will be the converted samples of the original inputStream. When nLength is not an integral number of frames, this method may read less than nLength bytes.

Overrides:

read in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

skip

public long skip(long nSkip)
          throws java.io.IOException

Overrides:

skip in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

available

public int available()
              throws java.io.IOException

Overrides:

available in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

mark

public void mark(int readlimit)

Overrides:

mark in class javax.sound.sampled.AudioInputStream

reset

public void reset()
           throws java.io.IOException

Overrides:

reset in class javax.sound.sampled.AudioInputStream

Throws:

java.io.IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class javax.sound.sampled.AudioInputStream

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class javax.sound.sampled.AudioInputStream

isClosed

public boolean isClosed()

flush

public void flush()

Flushes the internal buffers

setTargetSampleRate

public void setTargetSampleRate(float sr)

setConversionAlgorithm

public void setConversionAlgorithm(int algo)

getTargetSampleRate

public float getTargetSampleRate()

getConversionAlgorithm

public int getConversionAlgorithm()