/* * Copyright (c) 2007, 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.BufferedInputStream;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.net.URL; 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.UnsupportedAudioFileException;import javax.sound.sampled.spi.AudioFileReader; /** * Floating-point encoded (format 3) WAVE file loader. * * @author Karl Helgason */public class WaveFloatFileReader extends AudioFileReader {     public AudioFileFormat getAudioFileFormat(InputStream stream)            throws UnsupportedAudioFileException, IOException {         stream.mark(200);        AudioFileFormat format;        try {            format = internal_getAudioFileFormat(stream);        } finally {            stream.reset();        }        return format;    }     private AudioFileFormat internal_getAudioFileFormat(InputStream stream)            throws UnsupportedAudioFileException, IOException {         RIFFReader riffiterator = new RIFFReader(stream);        if (!riffiterator.getFormat().equals("RIFF"))            throw new UnsupportedAudioFileException();        if (!riffiterator.getType().equals("WAVE"))            throw new UnsupportedAudioFileException();         boolean fmt_found = false;        boolean data_found = false;         int channels = 1;        long samplerate = 1;        int framesize = 1;        int bits = 1;         while (riffiterator.hasNextChunk()) {            RIFFReader chunk = riffiterator.nextChunk();             if (chunk.getFormat().equals("fmt ")) {                fmt_found = true;                 int format = chunk.readUnsignedShort();                if (format != 3) // WAVE_FORMAT_IEEE_FLOAT only                    throw new UnsupportedAudioFileException();                channels = chunk.readUnsignedShort();                samplerate = chunk.readUnsignedInt();                /* framerate = */chunk.readUnsignedInt();                framesize = chunk.readUnsignedShort();                bits = chunk.readUnsignedShort();            }            if (chunk.getFormat().equals("data")) {                data_found = true;                break;            }        }         if (!fmt_found)            throw new UnsupportedAudioFileException();        if (!data_found)            throw new UnsupportedAudioFileException();         AudioFormat audioformat = new AudioFormat(                Encoding.PCM_FLOAT, samplerate, bits, channels,                framesize, samplerate, false);        AudioFileFormat fileformat = new AudioFileFormat(                AudioFileFormat.Type.WAVE, audioformat,                AudioSystem.NOT_SPECIFIED);        return fileformat;    }     public AudioInputStream getAudioInputStream(InputStream stream)            throws UnsupportedAudioFileException, IOException {         AudioFileFormat format = getAudioFileFormat(stream);        RIFFReader riffiterator = new RIFFReader(stream);        if (!riffiterator.getFormat().equals("RIFF"))            throw new UnsupportedAudioFileException();        if (!riffiterator.getType().equals("WAVE"))            throw new UnsupportedAudioFileException();        while (riffiterator.hasNextChunk()) {            RIFFReader chunk = riffiterator.nextChunk();            if (chunk.getFormat().equals("data")) {                return new AudioInputStream(chunk, format.getFormat(),                        chunk.getSize());            }        }        throw new UnsupportedAudioFileException();    }     public AudioFileFormat getAudioFileFormat(URL url)            throws UnsupportedAudioFileException, IOException {        InputStream stream = url.openStream();        AudioFileFormat format;        try {            format = getAudioFileFormat(new BufferedInputStream(stream));        } finally {            stream.close();        }        return format;    }     public AudioFileFormat getAudioFileFormat(File file)            throws UnsupportedAudioFileException, IOException {        InputStream stream = new FileInputStream(file);        AudioFileFormat format;        try {            format = getAudioFileFormat(new BufferedInputStream(stream));        } finally {            stream.close();        }        return format;    }     public AudioInputStream getAudioInputStream(URL url)            throws UnsupportedAudioFileException, IOException {        return getAudioInputStream(new BufferedInputStream(url.openStream()));    }     public AudioInputStream getAudioInputStream(File file)            throws UnsupportedAudioFileException, IOException {        return getAudioInputStream(new BufferedInputStream(new FileInputStream(                file)));    }}