org.tritonus.share.sampled
Class FloatInputStream

java.lang.Object
  java.io.InputStream
      javax.sound.sampled.AudioInputStream
          org.tritonus.share.sampled.FloatInputStream

All Implemented Interfaces:

Closeable, FloatSampleInput

public class FloatInputStream
extends AudioInputStream
implements FloatSampleInput

An implementation of AudioInputStream that implements the FloatSampleInput interface. This is a convenience class to instantly make any AudioInputStream capable of fulfilling the FloatSampleInput interface, or vice versa: make an existing FloatSampleInput class compatible with AudioInputStream.

All calls to FloatSampleInput.read() will cause implicit conversion to FloatSampleBuffer. If the underlying stream implementes FloatSampleInput, the FloatSampleInput.read method is used for reading.

Author:

florian

Field Summary

Fields inherited from class javax.sound.sampled.AudioInputStream

format, frameLength, framePos, frameSize, stream

Constructor Summary

FloatInputStream(AudioInputStream sourceStream)
Create a new FloatInputStream that shadows the sourceStream.

FloatInputStream(FloatSampleInput sourceInput, AudioFormat format, long frameLength)
Create a new FloatInputStream that will make the specified FloatSampleInput a complete AudioInputStream.

FloatInputStream(InputStream sourceStream, AudioFormat format, long frameLength)
Create a new FloatInputStream that shadows the sourceStream.

Method Summary

int	available()
void	close()
int	getChannels()
float	getSampleRate()
boolean	isDone() Determine if this stream has reached its end.
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] abData)
int	read(byte[] abData, int nOffset, int nLength) If an underlying InputStream is available, read from it, otherwise read from an underlying FloatSampleInput stream and convert to a byte array.
void	read(FloatSampleBuffer outBuffer) Fill the entire buffer with audio data.
void	read(FloatSampleBuffer buffer, int offset, int sampleCount) Fill the specified portion of the buffer with the next audio data to be read.
protected int	readBytesFromFloatInput(byte[] abData, int nOffset, int nLength) internal method to read from the underlying InputStream.
protected int	readBytesFromInputStream(byte[] abData, int nOffset, int nLength) internal method to read from the underlying InputStream.
void	reset()
long	skip(long nSkip)

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

Constructor Detail

FloatInputStream

public FloatInputStream(AudioInputStream sourceStream)

Create a new FloatInputStream that shadows the sourceStream.

Parameters:

sourceStream -

Throws:

IllegalArgumentException - if the stream's format is not compatible

FloatInputStream

public FloatInputStream(InputStream sourceStream,
                        AudioFormat format,
                        long frameLength)

Create a new FloatInputStream that shadows the sourceStream.

Parameters:

sourceStream -

format - the native format of sourceStream

frameLength - the length in frames of the streams, or AudioSystem.NOT_SPECIFIED if not known or unlimited.

Throws:

IllegalArgumentException - if the stream's format is not compatible

FloatInputStream

public FloatInputStream(FloatSampleInput sourceInput,
                        AudioFormat format,
                        long frameLength)

Create a new FloatInputStream that will make the specified FloatSampleInput a complete AudioInputStream.

Parameters:

sourceInput -

format - the native format for the read(byte[]) method

frameLength - the length in frames of the stream, or AudioSystem.NOT_SPECIFIED if not known or unlimited.

Throws:

IllegalArgumentException - if the format is not compatible

Method Detail

read

public void read(FloatSampleBuffer outBuffer)

Description copied from interface: FloatSampleInput

Fill the entire buffer with audio data. If fewer samples are read, this method will use buffer.changeSampleCount() to adjust the size of the buffer. If no samples can be written to the buffer, the buffer's sample count will be set to 0.

The buffer's channel count and sample rate may not be changed by the implementation of this method.

Specified by:

read in interface FloatSampleInput

Parameters:

outBuffer - the buffer to be filled

read

public void read(FloatSampleBuffer buffer,
                 int offset,
                 int sampleCount)

Description copied from interface: FloatSampleInput

Fill the specified portion of the buffer with the next audio data to be read. If fewer samples are read, this method will use buffer.changeSampleCount() to adjust the size of the buffer. If no samples can be written to the buffer, the buffer's sample count will be set to offset.

The buffer's channel count and sample rate may not be changed by the implementation of this method.

Specified by:

read in interface FloatSampleInput

Parameters:

buffer - the buffer to be filled

offset - the start index, in samples, where to start filling the buffer

sampleCount - the number fo samples to fill into the buffer

getChannels

public int getChannels()

Specified by:

getChannels in interface FloatSampleInput

Returns:

the number of audio channels of the audio data that this stream provides. If it can support a variable number of channels, this method returns AudioSystem.NOT_SPECIFIED.

getSampleRate

public float getSampleRate()

Specified by:

getSampleRate in interface FloatSampleInput

Returns:

the sample rate of the audio data that this stream provides. If it can support different sample rates, this method returns a negative number, e.g. AudioSystem.NOT_SPECIFIED.

isDone

public boolean isDone()

Description copied from interface: FloatSampleInput

Determine if this stream has reached its end. If true, subsequent calls to read() will return 0-sized buffers.

Specified by:

isDone in interface FloatSampleInput

Returns:

true if this stream reached its end.

read

public int read()
         throws IOException

Overrides:

read in class AudioInputStream

Throws:

IOException

read

public int read(byte[] abData)
         throws IOException

Overrides:

read in class AudioInputStream

Throws:

IOException

See Also:

read(byte[], int, int)

read

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

If an underlying InputStream is available, read from it, otherwise read from an underlying FloatSampleInput stream and convert to a byte array.

Overrides:

read in class AudioInputStream

Throws:

IOException

readBytesFromInputStream

protected int readBytesFromInputStream(byte[] abData,
                                       int nOffset,
                                       int nLength)
                                throws IOException

internal method to read from the underlying InputStream.
Precondition: sourceStream!=null

Throws:

IOException

readBytesFromFloatInput

protected int readBytesFromFloatInput(byte[] abData,
                                      int nOffset,
                                      int nLength)
                               throws IOException

internal method to read from the underlying InputStream.
Precondition: sourceInput!=null

Parameters:

abData - the byte array to fill, or null if just skipping

Throws:

IOException

skip

public long skip(long nSkip)
          throws IOException

Overrides:

skip in class AudioInputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class AudioInputStream

Throws:

IOException

mark

public void mark(int readlimit)

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

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class AudioInputStream

Throws:

IOException