/** * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. * Copyright (c) 2011 JogAmp Community. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * -Redistribution of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * -Redistribution 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 Sun Microsystems, Inc. or the names of contributors may * be used to endorse or promote products derived from this software without * specific prior written permission. * * This software is provided "AS IS," without a warranty of any kind. * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS * LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A * RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. * IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT * OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that this software is not designed or intended for use in the * design, construction, operation or maintenance of any nuclear facility. */ package com.jogamp.openal.util; import java.io.BufferedInputStream; import java.io.IOException; import java.io.InputStream; import java.nio.ByteBuffer; import java.nio.ByteOrder; import com.jogamp.common.util.IOUtil; import com.jogamp.openal.ALConstants; import com.jogamp.openal.UnsupportedAudioFileException; /** * This class is a holder for WAV (.wav ) file Data returned from the WavLoader, * or directly via {@link #loadFromStream(InputStream, int, int, int)}. * * @author Athomas Goldberg, et.al. */ public final class WAVData { /** The audio data */ public final ByteBuffer data; /** the format of the Data. One of: *
     * AL.AL_FORMAT_MONO8
     * AL.AL_FORMAT_MONO16
     * AL.AL_FORMAT_STEREO8
     * AL.AL_FORMAT_STEREO16
     * 
* */ public final int format; /** Size (in bytes) of the data */ public final int size; /** The frequency of the data */ public final int freq; /** flag indicating whether or not the sound in the data should loop */ public final boolean loop; public WAVData(final ByteBuffer data, final int format, final int size, final int freq, final boolean loop) { this.data = data; this.format = format; this.size = size; this.freq = freq; this.loop = loop; } /** * This method loads a (.wav) file into a WAVData object. * @param initialCapacity initial buffer capacity in bytes, if > available bytes * @param numChannels * @param bits * @param sampleRate * @param byteOrder * @param stream An InputStream for the .WAV stream * * @return a WAVData object containing the audio data * * @throws UnsupportedAudioFileException if the format of the audio if not * supported. * @throws IOException If the file can no be found or some other IO error * occurs */ public static WAVData loadFromStream(InputStream aIn, final int initialCapacity, final int numChannels, final int bits, final int sampleRate, final ByteOrder byteOrder, final boolean loop) throws IOException { if( !(aIn instanceof BufferedInputStream) ) { aIn = new BufferedInputStream(aIn); } // ReadableByteChannel aChannel = Channels.newChannel(aIn); int format = ALConstants.AL_FORMAT_MONO8; if ((bits == 8) && (numChannels == 1)) { format = ALConstants.AL_FORMAT_MONO8; } else if ((bits == 16) && (numChannels == 1)) { format = ALConstants.AL_FORMAT_MONO16; } else if ((bits == 8) && (numChannels == 2)) { format = ALConstants.AL_FORMAT_STEREO8; } else if ((bits == 16) && (numChannels == 2)) { format = ALConstants.AL_FORMAT_STEREO16; } final ByteBuffer buffer = IOUtil.copyStream2ByteBuffer(aIn, initialCapacity); final int size = buffer.limit(); // Must byte swap in case endianess mismatch if ( bits == 16 && ByteOrder.nativeOrder() != byteOrder ) { final int len = buffer.remaining(); for (int i = 0; i < len; i += 2) { final byte a = buffer.get(i); final byte b = buffer.get(i+1); buffer.put(i, b); buffer.put(i+1, a); } } final WAVData result = new WAVData(buffer, format, size, sampleRate, loop); aIn.close(); return result; } }