/* * Copyright (c) 2009-2012 jMonkeyEngine * 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 'jMonkeyEngine' 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 OWNER 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. */ package com.jme3.audio.plugins; import com.jme3.asset.AssetInfo; import com.jme3.asset.AssetLoader; import com.jme3.audio.AudioBuffer; import com.jme3.audio.AudioData; import com.jme3.audio.AudioKey; import com.jme3.audio.AudioStream; import com.jme3.audio.SeekableStream; import com.jme3.util.BufferUtils; import de.jarnbjo.ogg.EndOfOggStreamException; import de.jarnbjo.ogg.LogicalOggStream; import de.jarnbjo.ogg.PhysicalOggStream; import de.jarnbjo.vorbis.IdentificationHeader; import de.jarnbjo.vorbis.VorbisStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.nio.ByteBuffer; import java.util.Collection; import java.util.logging.Level; import java.util.logging.Logger; public class OGGLoader implements AssetLoader { // private static int BLOCK_SIZE = 4096*64; private PhysicalOggStream oggStream; private LogicalOggStream loStream; private VorbisStream vorbisStream; // private CommentHeader commentHdr; private IdentificationHeader streamHdr; private static class JOggInputStream extends InputStream { private boolean endOfStream = false; protected final VorbisStream vs; public JOggInputStream(VorbisStream vs){ this.vs = vs; } @Override public int read() throws IOException { return 0; } @Override public int read(byte[] buf) throws IOException{ return read(buf,0,buf.length); } @Override public int read(byte[] buf, int offset, int length) throws IOException{ if (endOfStream) return -1; int bytesRead = 0, cnt = 0; assert length % 2 == 0; // read buffer should be even while (bytesRead 0){ baos.write(buf, 0, read); } } catch (EndOfOggStreamException ex){ } byte[] dataBytes = baos.toByteArray(); swapBytes(dataBytes, 0, dataBytes.length); int bytesToCopy = getOggTotalBytes( dataBytes.length ); ByteBuffer data = BufferUtils.createByteBuffer(bytesToCopy); data.put(dataBytes, 0, bytesToCopy).flip(); vorbisStream.close(); loStream.close(); oggStream.close(); return data; } private static void swapBytes(byte[] b, int off, int len) { byte tempByte; for (int i = off; i < (off+len); i+=2) { tempByte = b[i]; b[i] = b[i+1]; b[i+1] = tempByte; } } private InputStream readToStream(boolean seekable,float streamDuration){ if(seekable){ return new SeekableJOggInputStream(vorbisStream,loStream,streamDuration); }else{ return new JOggInputStream(vorbisStream); } } private AudioData load(InputStream in, boolean readStream, boolean streamCache) throws IOException{ if (readStream && streamCache){ oggStream = new CachedOggStream(in); }else{ oggStream = new UncachedOggStream(in); } Collection streams = oggStream.getLogicalStreams(); loStream = streams.iterator().next(); // if (loStream == null){ // throw new IOException("OGG File does not contain vorbis audio stream"); // } vorbisStream = new VorbisStream(loStream); streamHdr = vorbisStream.getIdentificationHeader(); // commentHdr = vorbisStream.getCommentHeader(); if (!readStream){ AudioBuffer audioBuffer = new AudioBuffer(); audioBuffer.setupFormat(streamHdr.getChannels(), 16, streamHdr.getSampleRate()); audioBuffer.updateData(readToBuffer()); return audioBuffer; }else{ AudioStream audioStream = new AudioStream(); audioStream.setupFormat(streamHdr.getChannels(), 16, streamHdr.getSampleRate()); // might return -1 if unknown float streamDuration = computeStreamDuration(); audioStream.updateData(readToStream(oggStream.isSeekable(),streamDuration), streamDuration); return audioStream; } } public Object load(AssetInfo info) throws IOException { if (!(info.getKey() instanceof AudioKey)){ throw new IllegalArgumentException("Audio assets must be loaded using an AudioKey"); } AudioKey key = (AudioKey) info.getKey(); boolean readStream = key.isStream(); boolean streamCache = key.useStreamCache(); InputStream in = null; try { in = info.openStream(); AudioData data = load(in, readStream, streamCache); if (data instanceof AudioStream){ // audio streams must remain open in = null; } return data; } finally { if (in != null){ in.close(); } } } }