--- /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<String, Object> p = new HashMap<String, Object>();
+ 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)));
+ }
+
+}