diff -r 836adbf7a2cd -r 3317bb8137f4 jdk/src/java.desktop/share/classes/com/sun/media/sound/WaveExtensibleFileReader.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/src/java.desktop/share/classes/com/sun/media/sound/WaveExtensibleFileReader.java Sun Aug 17 15:54:13 2014 +0100 @@ -0,0 +1,339 @@ +/* + * 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] + " "); + } else { + sb.append(allchannelnames[i] + " "); + } + } + 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))); + } + +}