/* * Copyright (c) 2007, 2013, 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 java.util.HashMap; import java.util.Map; import javax.sound.sampled.AudioFileFormat; import javax.sound.sampled.AudioFormat; import javax.sound.sampled.AudioInputStream; import javax.sound.sampled.AudioSystem; import javax.sound.sampled.UnsupportedAudioFileException; import javax.sound.sampled.AudioFormat.Encoding; import javax.sound.sampled.spi.AudioFileReader; /** * WAVE file reader for files using format WAVE_FORMAT_EXTENSIBLE (0xFFFE). * * @author Karl Helgason */ public final class WaveExtensibleFileReader extends AudioFileReader { static private class GUID { long i1; int s1; int s2; int x1; int x2; int x3; int x4; int x5; int x6; int x7; int x8; private GUID() { } GUID(long i1, int s1, int s2, int x1, int x2, int x3, int x4, int x5, int x6, int x7, int x8) { this.i1 = i1; this.s1 = s1; this.s2 = s2; this.x1 = x1; this.x2 = x2; this.x3 = x3; this.x4 = x4; this.x5 = x5; this.x6 = x6; this.x7 = x7; this.x8 = x8; } public static GUID read(RIFFReader riff) throws IOException { GUID d = new GUID(); d.i1 = riff.readUnsignedInt(); d.s1 = riff.readUnsignedShort(); d.s2 = riff.readUnsignedShort(); d.x1 = riff.readUnsignedByte(); d.x2 = riff.readUnsignedByte(); d.x3 = riff.readUnsignedByte(); d.x4 = riff.readUnsignedByte(); d.x5 = riff.readUnsignedByte(); d.x6 = riff.readUnsignedByte(); d.x7 = riff.readUnsignedByte(); d.x8 = riff.readUnsignedByte(); return d; } public int hashCode() { return (int) i1; } public boolean equals(Object obj) { if (!(obj instanceof GUID)) return false; GUID t = (GUID) obj; if (i1 != t.i1) return false; if (s1 != t.s1) return false; if (s2 != t.s2) return false; if (x1 != t.x1) return false; if (x2 != t.x2) return false; if (x3 != t.x3) return false; if (x4 != t.x4) return false; if (x5 != t.x5) return false; if (x6 != t.x6) return false; if (x7 != t.x7) return false; if (x8 != t.x8) return false; return true; } } private static final String[] channelnames = { "FL", "FR", "FC", "LF", "BL", "BR", // 5.1 "FLC", "FLR", "BC", "SL", "SR", "TC", "TFL", "TFC", "TFR", "TBL", "TBC", "TBR" }; private static final String[] allchannelnames = { "w1", "w2", "w3", "w4", "w5", "w6", "w7", "w8", "w9", "w10", "w11", "w12", "w13", "w14", "w15", "w16", "w17", "w18", "w19", "w20", "w21", "w22", "w23", "w24", "w25", "w26", "w27", "w28", "w29", "w30", "w31", "w32", "w33", "w34", "w35", "w36", "w37", "w38", "w39", "w40", "w41", "w42", "w43", "w44", "w45", "w46", "w47", "w48", "w49", "w50", "w51", "w52", "w53", "w54", "w55", "w56", "w57", "w58", "w59", "w60", "w61", "w62", "w63", "w64" }; private static final GUID SUBTYPE_PCM = new GUID(0x00000001, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); private static final GUID SUBTYPE_IEEE_FLOAT = new GUID(0x00000003, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); private String decodeChannelMask(long channelmask) { StringBuilder sb = new StringBuilder(); long m = 1; for (int i = 0; i < allchannelnames.length; i++) { if ((channelmask & m) != 0L) { if (i < channelnames.length) { sb.append(channelnames[i]).append(' '); } else { sb.append(allchannelnames[i]).append(' '); } } m *= 2L; } if (sb.length() == 0) return null; return sb.substring(0, sb.length() - 1); } 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; // long framerate = 1; int framesize = 1; int bits = 1; int validBitsPerSample = 1; long channelMask = 0; GUID subFormat = null; while (riffiterator.hasNextChunk()) { RIFFReader chunk = riffiterator.nextChunk(); if (chunk.getFormat().equals("fmt ")) { fmt_found = true; int format = chunk.readUnsignedShort(); if (format != 0xFFFE) throw new UnsupportedAudioFileException(); // WAVE_FORMAT_EXTENSIBLE // only channels = chunk.readUnsignedShort(); samplerate = chunk.readUnsignedInt(); /* framerate = */chunk.readUnsignedInt(); framesize = chunk.readUnsignedShort(); bits = chunk.readUnsignedShort(); int cbSize = chunk.readUnsignedShort(); if (cbSize != 22) throw new UnsupportedAudioFileException(); validBitsPerSample = chunk.readUnsignedShort(); if (validBitsPerSample > bits) throw new UnsupportedAudioFileException(); channelMask = chunk.readUnsignedInt(); subFormat = GUID.read(chunk); } if (chunk.getFormat().equals("data")) { data_found = true; break; } } if (!fmt_found) throw new UnsupportedAudioFileException(); if (!data_found) throw new UnsupportedAudioFileException(); Map p = new HashMap(); String s_channelmask = decodeChannelMask(channelMask); if (s_channelmask != null) p.put("channelOrder", s_channelmask); if (channelMask != 0) p.put("channelMask", channelMask); // validBitsPerSample is only informational for PCM data, // data is still encode according to SampleSizeInBits. p.put("validBitsPerSample", validBitsPerSample); AudioFormat audioformat = null; if (subFormat.equals(SUBTYPE_PCM)) { if (bits == 8) { audioformat = new AudioFormat(Encoding.PCM_UNSIGNED, samplerate, bits, channels, framesize, samplerate, false, p); } else { audioformat = new AudioFormat(Encoding.PCM_SIGNED, samplerate, bits, channels, framesize, samplerate, false, p); } } else if (subFormat.equals(SUBTYPE_IEEE_FLOAT)) { audioformat = new AudioFormat(Encoding.PCM_FLOAT, samplerate, bits, channels, framesize, samplerate, false, p); } else throw new UnsupportedAudioFileException(); 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))); } }