| /* |
| * Copyright (c) 2007, 2016, 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 (int) 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(); |
| } |
| } |
