| /* | |
| * Copyright (c) 2007, 2021, 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.IOException; | |
| import java.io.InputStream; | |
| import java.util.HashMap; | |
| import java.util.Map; | |
| 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.UnsupportedAudioFileException; | |
| /** | |
| * WAVE file reader for files using format WAVE_FORMAT_EXTENSIBLE (0xFFFE). | |
| * | |
| * @author Karl Helgason | |
| */ | |
| public final class WaveExtensibleFileReader extends SunFileReader { | |
| private static final class GUID { | |
| private long i1; | |
| private int s1; | |
| private int s2; | |
| private int x1; | |
| private int x2; | |
| private int x3; | |
| private int x4; | |
| private int x5; | |
| private int x6; | |
| private int x7; | |
| private 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; | |
| } | |
| @Override | |
| public int hashCode() { | |
| return Long.hashCode(i1); | |
| } | |
| @Override | |
| 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 static 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); | |
| } | |
| @Override | |
| StandardFileFormat getAudioFileFormatImpl(final 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; | |
| long dataSize = 0; | |
| 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 != WaveFileFormat.WAVE_FORMAT_EXTENSIBLE) { | |
| throw new UnsupportedAudioFileException(); | |
| } | |
| 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")) { | |
| dataSize = chunk.getSize(); | |
| data_found = true; | |
| break; | |
| } | |
| } | |
| if (!fmt_found || !data_found) { | |
| throw new UnsupportedAudioFileException(); | |
| } | |
| Map<String, Object> 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(); | |
| } | |
| return new StandardFileFormat(AudioFileFormat.Type.WAVE, audioformat, | |
| dataSize / audioformat.getFrameSize()); | |
| } | |
| @Override | |
| public AudioInputStream getAudioInputStream(final InputStream stream) | |
| throws UnsupportedAudioFileException, IOException { | |
| final StandardFileFormat format = getAudioFileFormat(stream); | |
| final AudioFormat af = format.getFormat(); | |
| final long length = format.getLongFrameLength(); | |
| // we've got everything, the stream is supported and it is at the | |
| // beginning of the header, so find the data chunk again and return an | |
| // AudioInputStream | |
| final RIFFReader riffiterator = new RIFFReader(stream); | |
| while (riffiterator.hasNextChunk()) { | |
| RIFFReader chunk = riffiterator.nextChunk(); | |
| if (chunk.getFormat().equals("data")) { | |
| return new AudioInputStream(chunk, af, length); | |
| } | |
| } | |
| throw new UnsupportedAudioFileException(); | |
| } | |
| } |