/* * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package com.sun.media.sound; import java.io.File;import java.io.IOException;import java.io.OutputStream; import javax.sound.sampled.AudioFileFormat;import javax.sound.sampled.AudioFormat;import javax.sound.sampled.AudioFormat.Encoding;import javax.sound.sampled.AudioInputStream;import javax.sound.sampled.AudioSystem;import javax.sound.sampled.AudioFileFormat.Type;import javax.sound.sampled.spi.AudioFileWriter; /** * Floating-point encoded (format 3) WAVE file writer. * * @author Karl Helgason */public class WaveFloatFileWriter extends AudioFileWriter {     public Type[] getAudioFileTypes() {        return new Type[] { Type.WAVE };    }     public Type[] getAudioFileTypes(AudioInputStream stream) {         if (!stream.getFormat().getEncoding().equals(Encoding.PCM_FLOAT))            return new Type[0];        return new Type[] { Type.WAVE };    }     private void checkFormat(AudioFileFormat.Type type, AudioInputStream stream) {        if (!Type.WAVE.equals(type))            throw new IllegalArgumentException("File type " + type                    + " not supported.");        if (!stream.getFormat().getEncoding().equals(Encoding.PCM_FLOAT))            throw new IllegalArgumentException("File format "                    + stream.getFormat() + " not supported.");    }     public void write(AudioInputStream stream, RIFFWriter writer)            throws IOException {         RIFFWriter fmt_chunk = writer.writeChunk("fmt ");         AudioFormat format = stream.getFormat();        fmt_chunk.writeUnsignedShort(3); // WAVE_FORMAT_IEEE_FLOAT        fmt_chunk.writeUnsignedShort(format.getChannels());        fmt_chunk.writeUnsignedInt((int) format.getSampleRate());        fmt_chunk.writeUnsignedInt(((int) format.getFrameRate())                * format.getFrameSize());        fmt_chunk.writeUnsignedShort(format.getFrameSize());        fmt_chunk.writeUnsignedShort(format.getSampleSizeInBits());        fmt_chunk.close();        RIFFWriter data_chunk = writer.writeChunk("data");        byte[] buff = new byte[1024];        int len;        while ((len = stream.read(buff, 0, buff.length)) != -1)            data_chunk.write(buff, 0, len);        data_chunk.close();    }     private static class NoCloseOutputStream extends OutputStream {        OutputStream out;         public NoCloseOutputStream(OutputStream out) {            this.out = out;        }         public void write(int b) throws IOException {            out.write(b);        }         public void flush() throws IOException {            out.flush();        }         public void write(byte[] b, int off, int len) throws IOException {            out.write(b, off, len);        }         public void write(byte[] b) throws IOException {            out.write(b);        }    }     private AudioInputStream toLittleEndian(AudioInputStream ais) {        AudioFormat format = ais.getFormat();        AudioFormat targetFormat = new AudioFormat(format.getEncoding(), format                .getSampleRate(), format.getSampleSizeInBits(), format                .getChannels(), format.getFrameSize(), format.getFrameRate(),                false);        return AudioSystem.getAudioInputStream(targetFormat, ais);    }     public int write(AudioInputStream stream, Type fileType, OutputStream out)            throws IOException {         checkFormat(fileType, stream);        if (stream.getFormat().isBigEndian())            stream = toLittleEndian(stream);        RIFFWriter writer = new RIFFWriter(new NoCloseOutputStream(out), "WAVE");        write(stream, writer);        int fpointer = (int) writer.getFilePointer();        writer.close();        return fpointer;    }     public int write(AudioInputStream stream, Type fileType, File out)            throws IOException {        checkFormat(fileType, stream);        if (stream.getFormat().isBigEndian())            stream = toLittleEndian(stream);        RIFFWriter writer = new RIFFWriter(out, "WAVE");        write(stream, writer);        int fpointer = (int) writer.getFilePointer();        writer.close();        return fpointer;    } }