net.sf.freecol.client.gui.sound

Class OggVorbisDecoderFactory.OggStream

java.lang.Object

java.io.InputStream

net.sf.freecol.client.gui.sound.OggVorbisDecoderFactory.OggStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

Enclosing class:

OggVorbisDecoderFactory

private static class OggVorbisDecoderFactory.OggStream
extends java.io.InputStream

Core JOgg/JOrbis magic handled here.

Field Summary

Fields

Modifier and Type	Field and Description
private javax.sound.sampled.AudioFormat	audioFormat
private int	bufCount
private static int	BUFSIZ
private byte[]	convBuf
private static java.lang.String	EOS
private java.io.InputStream	inputStream
private int	offset
private com.jcraft.jogg.Packet	oggPacket
private com.jcraft.jogg.Page	oggPage
private com.jcraft.jogg.StreamState	oggStreamState
private com.jcraft.jogg.SyncState	oggSyncState
private com.jcraft.jorbis.Block	orbisBlock
private com.jcraft.jorbis.Comment	orbisComment
private com.jcraft.jorbis.DspState	orbisDspState
private com.jcraft.jorbis.Info	orbisInfo
private float[][][]	pcmData
private int[]	pcmi

Constructor Summary

Constructors

Constructor and Description
OggStream(java.io.InputStream inputStream)

Method Summary

Modifier and Type	Method and Description
int	available() Gets the amount of data available to be read right now.
void	close()
private int	decodePacket(int samples) Decode the PCM data.
int	getBody(java.io.InputStream is) Refills the conversion buffer.
javax.sound.sampled.AudioFormat	getFormat()
private java.lang.String	getHeader() Gets the OGG header (first three packets) which must contain vorbis audio content.
private java.lang.String	getInput() Gets another chunk of input into the oggSyncState.
private java.lang.String	getPage() Gets the next page from the oggSyncState into the oggStreamState.
int	read()
int	read(byte[] buf)
int	read(byte[] buf, int n) Reads into the supplied buffer.
void	reset()
long	skip(long n) Skips a number of bytes.

Methods inherited from class java.io.InputStream

mark, markSupported, read

Methods inherited from class java.lang.Object

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

Field Detail

EOS

private static final java.lang.String EOS

See Also:

Constant Field Values

BUFSIZ

private static final int BUFSIZ

See Also:

Constant Field Values

oggPacket

private final com.jcraft.jogg.Packet oggPacket

oggPage

private final com.jcraft.jogg.Page oggPage

oggStreamState

private final com.jcraft.jogg.StreamState oggStreamState

oggSyncState

private final com.jcraft.jogg.SyncState oggSyncState

orbisDspState

private final com.jcraft.jorbis.DspState orbisDspState

orbisBlock

private final com.jcraft.jorbis.Block orbisBlock

orbisComment

private final com.jcraft.jorbis.Comment orbisComment

orbisInfo

private final com.jcraft.jorbis.Info orbisInfo

audioFormat

private final javax.sound.sampled.AudioFormat audioFormat

convBuf

private final byte[] convBuf

bufCount

private int bufCount

offset

private int offset

pcmi

private int[] pcmi

pcmData

private float[][][] pcmData

inputStream

private java.io.InputStream inputStream

Constructor Detail

OggStream

public OggStream(java.io.InputStream inputStream)
          throws java.io.IOException

Throws:

java.io.IOException

Method Detail

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.InputStream

getFormat

public javax.sound.sampled.AudioFormat getFormat()

available

public int available()

Gets the amount of data available to be read right now.

Overrides:

available in class java.io.InputStream

Returns:

A number of bytes to read.

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] buf,
                int n)
         throws java.io.IOException

Reads into the supplied buffer.

Parameters:

buf - The buffer to read to.

n - The number of bytes to read.

Returns:

Negative on error, zero on end of stream, otherwise the number of bytes added to the buffer.

Throws:

java.io.IOException - if JOrbis loses.

skip

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

Skips a number of bytes.

Overrides:

skip in class java.io.InputStream

Parameters:

n - The number of bytes to skip.

Returns:

The actual number of bytes skipped.

Throws:

java.io.IOException

reset

public void reset()

Overrides:

reset in class java.io.InputStream

getHeader

private java.lang.String getHeader()

Gets the OGG header (first three packets) which must contain vorbis audio content. This routine is public so it can be used as a check if the a file really does contain vorbis.

Returns:

An error message if a page not is available, null on success.

getInput

private java.lang.String getInput()

Gets another chunk of input into the oggSyncState.

Returns:

An error message if input is not available, null on success.

getPage

private java.lang.String getPage()

Gets the next page from the oggSyncState into the oggStreamState.

Returns:

An error message if a page not is available, null on success.

getBody

public int getBody(java.io.InputStream is)

Refills the conversion buffer.

Returns:

The number of bytes waiting in the convBuf.

decodePacket

private int decodePacket(int samples)

Decode the PCM data.

Returns:

The number of bytes waiting in the conversion buffer to be written.