paulscode.sound.codecs
Class CodecIBXM

java.lang.Object
  paulscode.sound.codecs.CodecIBXM

All Implemented Interfaces:

paulscode.sound.ICodec

public class CodecIBXM
extends Object
implements paulscode.sound.ICodec

The CodecIBXM class provides an ICodec interface for reading from MOD/S3M/XM files via the IBXM library. SoundSystem CodecIBXM Class License:

You are free to use this class for any purpose, commercial or otherwise. You may modify this class or source code, and distribute it any way you like, provided the following conditions are met:
1) You may not falsely claim to be the author of this class or any unmodified portion of it.
2) You may not copyright this class or a modified version of it and then sue me for copyright infringement.
3) If you modify the source code, you must clearly document the changes made before redistributing the modified source code, so other users know it is not the original code.
4) You are not required to give me credit for this class in any derived work, but if you do, you must also mention my website: http://www.paulscode.com
5) I the author will not be responsible for any damages (physical, financial, or otherwise) caused by the use if this class or any portion of it.
6) I the author do not guarantee, warrant, or make any representations, either expressed or implied, regarding the use of this class or any portion of it.

Author: Paul Lamb
http://www.paulscode.com

This software is based on or using the IBXM library available from http://www.geocities.com/sunet2000/


IBXM is copyright (c) 2007, Martin Cameron, and is licensed under the BSD License.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of mumart nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Constructor Summary

CodecIBXM()
Constructor: Grabs a handle to the logger.

Method Summary

void	cleanup() Closes the audio stream and remove references to all instantiated objects.
boolean	endOfStream() Returns false if there is still more data available to be read in.
AudioFormat	getAudioFormat() Returns the audio format of the data being returned by the read() and readAll() methods.
boolean	initialize(URL url) Prepares an audio stream to read from.
boolean	initialized() Returns false if the stream is busy initializing.
paulscode.sound.SoundBuffer	read() Reads in one stream buffer worth of audio data.
paulscode.sound.SoundBuffer	readAll() Reads in all the audio data from the stream (up to the default "maximum file size".
void	reverseByteOrder(boolean b) Tells this codec when it will need to reverse the byte order of the data before returning it in the read() and readAll() methods.
static void	reverseBytes(byte[] buffer) Reverse-orders all bytes contained in the specified array.
static void	reverseBytes(byte[] buffer, int offset, int size) Reverse-orders the specified range of bytes contained in the specified array.

Methods inherited from class java.lang.Object

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

Constructor Detail

CodecIBXM

public CodecIBXM()

Constructor: Grabs a handle to the logger.

Method Detail

reverseByteOrder

public void reverseByteOrder(boolean b)

Tells this codec when it will need to reverse the byte order of the data before returning it in the read() and readAll() methods. The IBXM library produces audio data in a format that some external audio libraries require to be reversed. Derivatives of the Library and Source classes for audio libraries which require this type of data to be reversed will call the reverseByteOrder() method.

Specified by:

reverseByteOrder in interface paulscode.sound.ICodec

Parameters:

b - True if the calling audio library requires byte-reversal.

initialize

public boolean initialize(URL url)

Prepares an audio stream to read from. If another stream is already opened, it will be closed and a new audio stream opened in its place.

Specified by:

initialize in interface paulscode.sound.ICodec

Parameters:

url - URL to an audio file to stream from.

Returns:

False if an error occurred or if end of stream was reached.

initialized

public boolean initialized()

Returns false if the stream is busy initializing.

Specified by:

initialized in interface paulscode.sound.ICodec

Returns:

True if steam is initialized.

read

public paulscode.sound.SoundBuffer read()

Reads in one stream buffer worth of audio data. See SoundSystemConfig for more information about accessing and changing default settings.

Specified by:

read in interface paulscode.sound.ICodec

Returns:

The audio data wrapped into a SoundBuffer context.

readAll

public paulscode.sound.SoundBuffer readAll()

Reads in all the audio data from the stream (up to the default "maximum file size". See SoundSystemConfig for more information about accessing and changing default settings.

Specified by:

readAll in interface paulscode.sound.ICodec

Returns:

the audio data wrapped into a SoundBuffer context.

endOfStream

public boolean endOfStream()

Returns false if there is still more data available to be read in.

Specified by:

endOfStream in interface paulscode.sound.ICodec

Returns:

True if end of stream was reached.

cleanup

public void cleanup()

Closes the audio stream and remove references to all instantiated objects.

Specified by:

cleanup in interface paulscode.sound.ICodec

getAudioFormat

public AudioFormat getAudioFormat()

Returns the audio format of the data being returned by the read() and readAll() methods.

Specified by:

getAudioFormat in interface paulscode.sound.ICodec

Returns:

Information wrapped into an AudioFormat context.

reverseBytes

public static void reverseBytes(byte[] buffer)

Reverse-orders all bytes contained in the specified array.

Parameters:

buffer - Array containing audio data.

reverseBytes

public static void reverseBytes(byte[] buffer,
                                int offset,
                                int size)

Reverse-orders the specified range of bytes contained in the specified array.

Parameters:

buffer - Array containing audio data.

offset - Array index to begin.

size - number of bytes to reverse-order.