0N/A/*
6321N/A * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/Apackage com.sun.media.sound;
0N/A
6321N/Aimport java.io.DataInputStream;
6321N/Aimport java.io.DataOutputStream;
0N/Aimport java.io.File;
6321N/Aimport java.io.FileInputStream;
6321N/Aimport java.io.IOException;
0N/Aimport java.io.InputStream;
0N/Aimport java.net.URL;
0N/A
0N/Aimport javax.sound.sampled.AudioFileFormat;
6321N/Aimport javax.sound.sampled.AudioFormat;
0N/Aimport javax.sound.sampled.AudioInputStream;
0N/Aimport javax.sound.sampled.AudioSystem;
0N/Aimport javax.sound.sampled.UnsupportedAudioFileException;
0N/A
0N/A
0N/A/**
0N/A * AIFF file reader and writer.
0N/A *
0N/A * @author Kara Kytle
0N/A * @author Jan Borgersen
0N/A * @author Florian Bomers
0N/A */
6321N/Apublic final class AiffFileReader extends SunFileReader {
0N/A
0N/A private static final int MAX_READ_LENGTH = 8;
0N/A
0N/A /**
0N/A * Constructs a new AiffParser object.
0N/A */
0N/A public AiffFileReader() {
0N/A }
0N/A
0N/A
0N/A
0N/A
0N/A // METHODS TO IMPLEMENT AudioFileReader
0N/A
0N/A /**
0N/A * Obtains the audio file format of the input stream provided. The stream must
0N/A * point to valid audio file data. In general, audio file providers may
0N/A * need to read some data from the stream before determining whether they
0N/A * support it. These parsers must
0N/A * be able to mark the stream, read enough data to determine whether they
0N/A * support the stream, and, if not, reset the stream's read pointer to its original
0N/A * position. If the input stream does not support this, this method may fail
0N/A * with an IOException.
0N/A * @param stream the input stream from which file format information should be
0N/A * extracted
0N/A * @return an <code>AudioFileFormat</code> object describing the audio file format
0N/A * @throws UnsupportedAudioFileException if the stream does not point to valid audio
0N/A * file data recognized by the system
0N/A * @throws IOException if an I/O exception occurs
0N/A * @see InputStream#markSupported
0N/A * @see InputStream#mark
0N/A */
0N/A public AudioFileFormat getAudioFileFormat(InputStream stream) throws UnsupportedAudioFileException, IOException {
0N/A // fix for 4489272: AudioSystem.getAudioFileFormat() fails for InputStream, but works for URL
0N/A AudioFileFormat aff = getCOMM(stream, true);
0N/A // the following is not strictly necessary - but was implemented like that in 1.3.0 - 1.4.1
0N/A // so I leave it as it was. May remove this for 1.5.0
0N/A stream.reset();
0N/A return aff;
0N/A }
0N/A
0N/A
0N/A /**
0N/A * Obtains the audio file format of the URL provided. The URL must
0N/A * point to valid audio file data.
0N/A * @param url the URL from which file format information should be
0N/A * extracted
0N/A * @return an <code>AudioFileFormat</code> object describing the audio file format
0N/A * @throws UnsupportedAudioFileException if the URL does not point to valid audio
0N/A * file data recognized by the system
0N/A * @throws IOException if an I/O exception occurs
0N/A */
0N/A public AudioFileFormat getAudioFileFormat(URL url) throws UnsupportedAudioFileException, IOException {
0N/A AudioFileFormat fileFormat = null;
0N/A InputStream urlStream = url.openStream(); // throws IOException
0N/A try {
0N/A fileFormat = getCOMM(urlStream, false);
0N/A } finally {
0N/A urlStream.close();
0N/A }
0N/A return fileFormat;
0N/A }
0N/A
0N/A
0N/A /**
0N/A * Obtains the audio file format of the File provided. The File must
0N/A * point to valid audio file data.
0N/A * @param file the File from which file format information should be
0N/A * extracted
0N/A * @return an <code>AudioFileFormat</code> object describing the audio file format
0N/A * @throws UnsupportedAudioFileException if the File does not point to valid audio
0N/A * file data recognized by the system
0N/A * @throws IOException if an I/O exception occurs
0N/A */
0N/A public AudioFileFormat getAudioFileFormat(File file) throws UnsupportedAudioFileException, IOException {
0N/A AudioFileFormat fileFormat = null;
0N/A FileInputStream fis = new FileInputStream(file); // throws IOException
0N/A // part of fix for 4325421
0N/A try {
0N/A fileFormat = getCOMM(fis, false);
0N/A } finally {
0N/A fis.close();
0N/A }
0N/A
0N/A return fileFormat;
0N/A }
0N/A
0N/A
0N/A
0N/A
0N/A /**
0N/A * Obtains an audio stream from the input stream provided. The stream must
0N/A * point to valid audio file data. In general, audio file providers may
0N/A * need to read some data from the stream before determining whether they
0N/A * support it. These parsers must
0N/A * be able to mark the stream, read enough data to determine whether they
0N/A * support the stream, and, if not, reset the stream's read pointer to its original
0N/A * position. If the input stream does not support this, this method may fail
0N/A * with an IOException.
0N/A * @param stream the input stream from which the <code>AudioInputStream</code> should be
0N/A * constructed
0N/A * @return an <code>AudioInputStream</code> object based on the audio file data contained
0N/A * in the input stream.
0N/A * @throws UnsupportedAudioFileException if the stream does not point to valid audio
0N/A * file data recognized by the system
0N/A * @throws IOException if an I/O exception occurs
0N/A * @see InputStream#markSupported
0N/A * @see InputStream#mark
0N/A */
0N/A public AudioInputStream getAudioInputStream(InputStream stream) throws UnsupportedAudioFileException, IOException {
0N/A // getCOMM leaves the input stream at the beginning of the audio data
0N/A AudioFileFormat fileFormat = getCOMM(stream, true); // throws UnsupportedAudioFileException, IOException
0N/A
0N/A // we've got everything, and the stream is at the
0N/A // beginning of the audio data, so return an AudioInputStream.
0N/A return new AudioInputStream(stream, fileFormat.getFormat(), fileFormat.getFrameLength());
0N/A }
0N/A
0N/A
0N/A /**
0N/A * Obtains an audio stream from the URL provided. The URL must
0N/A * point to valid audio file data.
0N/A * @param url the URL for which the <code>AudioInputStream</code> should be
0N/A * constructed
0N/A * @return an <code>AudioInputStream</code> object based on the audio file data pointed
0N/A * to by the URL
0N/A * @throws UnsupportedAudioFileException if the URL does not point to valid audio
0N/A * file data recognized by the system
0N/A * @throws IOException if an I/O exception occurs
0N/A */
0N/A public AudioInputStream getAudioInputStream(URL url) throws UnsupportedAudioFileException, IOException {
0N/A InputStream urlStream = url.openStream(); // throws IOException
0N/A AudioFileFormat fileFormat = null;
0N/A try {
0N/A fileFormat = getCOMM(urlStream, false);
0N/A } finally {
0N/A if (fileFormat == null) {
0N/A urlStream.close();
0N/A }
0N/A }
0N/A return new AudioInputStream(urlStream, fileFormat.getFormat(), fileFormat.getFrameLength());
0N/A }
0N/A
0N/A
0N/A /**
0N/A * Obtains an audio stream from the File provided. The File must
0N/A * point to valid audio file data.
0N/A * @param file the File for which the <code>AudioInputStream</code> should be
0N/A * constructed
0N/A * @return an <code>AudioInputStream</code> object based on the audio file data pointed
0N/A * to by the File
0N/A * @throws UnsupportedAudioFileException if the File does not point to valid audio
0N/A * file data recognized by the system
0N/A * @throws IOException if an I/O exception occurs
0N/A */
0N/A public AudioInputStream getAudioInputStream(File file)
0N/A throws UnsupportedAudioFileException, IOException {
0N/A
0N/A FileInputStream fis = new FileInputStream(file); // throws IOException
0N/A AudioFileFormat fileFormat = null;
0N/A // part of fix for 4325421
0N/A try {
0N/A fileFormat = getCOMM(fis, false);
0N/A } finally {
0N/A if (fileFormat == null) {
0N/A fis.close();
0N/A }
0N/A }
0N/A return new AudioInputStream(fis, fileFormat.getFormat(), fileFormat.getFrameLength());
0N/A }
0N/A
0N/A //--------------------------------------------------------------------
0N/A
0N/A private AudioFileFormat getCOMM(InputStream is, boolean doReset)
0N/A throws UnsupportedAudioFileException, IOException {
0N/A
0N/A DataInputStream dis = new DataInputStream(is);
0N/A
0N/A if (doReset) {
0N/A dis.mark(MAX_READ_LENGTH);
0N/A }
0N/A
0N/A // assumes a stream at the beginning of the file which has already
0N/A // passed the magic number test...
0N/A // leaves the input stream at the beginning of the audio data
0N/A int fileRead = 0;
0N/A int dataLength = 0;
0N/A AudioFormat format = null;
0N/A
0N/A // Read the magic number
0N/A int magic = dis.readInt();
0N/A
0N/A // $$fb: fix for 4369044: javax.sound.sampled.AudioSystem.getAudioInputStream() works wrong with Cp037
0N/A if (magic != AiffFileFormat.AIFF_MAGIC) {
0N/A // not AIFF, throw exception
0N/A if (doReset) {
0N/A dis.reset();
0N/A }
0N/A throw new UnsupportedAudioFileException("not an AIFF file");
0N/A }
0N/A
0N/A int length = dis.readInt();
0N/A int iffType = dis.readInt();
0N/A fileRead += 12;
0N/A
0N/A int totallength;
0N/A if(length <= 0 ) {
0N/A length = AudioSystem.NOT_SPECIFIED;
0N/A totallength = AudioSystem.NOT_SPECIFIED;
0N/A } else {
0N/A totallength = length + 8;
0N/A }
0N/A
0N/A // Is this an AIFC or just plain AIFF file.
0N/A boolean aifc = false;
0N/A // $$fb: fix for 4369044: javax.sound.sampled.AudioSystem.getAudioInputStream() works wrong with Cp037
0N/A if (iffType == AiffFileFormat.AIFC_MAGIC) {
0N/A aifc = true;
0N/A }
0N/A
0N/A // Loop through the AIFF chunks until
0N/A // we get to the SSND chunk.
0N/A boolean ssndFound = false;
0N/A while (!ssndFound) {
0N/A // Read the chunk name
0N/A int chunkName = dis.readInt();
0N/A int chunkLen = dis.readInt();
0N/A fileRead += 8;
0N/A
0N/A int chunkRead = 0;
0N/A
0N/A // Switch on the chunk name.
0N/A switch (chunkName) {
0N/A case AiffFileFormat.FVER_MAGIC:
0N/A // Ignore format version for now.
0N/A break;
0N/A
0N/A case AiffFileFormat.COMM_MAGIC:
0N/A // AIFF vs. AIFC
0N/A // $$fb: fix for 4399551: Repost of bug candidate: cannot replay aif file (Review ID: 108108)
0N/A if ((!aifc && chunkLen < 18) || (aifc && chunkLen < 22)) {
0N/A throw new UnsupportedAudioFileException("Invalid AIFF/COMM chunksize");
0N/A }
0N/A // Read header info.
0N/A int channels = dis.readShort();
0N/A dis.readInt();
0N/A int sampleSizeInBits = dis.readShort();
0N/A float sampleRate = (float) read_ieee_extended(dis);
0N/A chunkRead += (2 + 4 + 2 + 10);
0N/A
0N/A // If this is not AIFC then we assume it's
0N/A // a linearly encoded file.
0N/A AudioFormat.Encoding encoding = AudioFormat.Encoding.PCM_SIGNED;
0N/A
0N/A if (aifc) {
0N/A int enc = dis.readInt(); chunkRead += 4;
0N/A switch (enc) {
0N/A case AiffFileFormat.AIFC_PCM:
0N/A encoding = AudioFormat.Encoding.PCM_SIGNED;
0N/A break;
0N/A case AiffFileFormat.AIFC_ULAW:
0N/A encoding = AudioFormat.Encoding.ULAW;
0N/A sampleSizeInBits = 8; // Java Sound convention
0N/A break;
0N/A default:
0N/A throw new UnsupportedAudioFileException("Invalid AIFF encoding");
0N/A }
0N/A }
0N/A int frameSize = calculatePCMFrameSize(sampleSizeInBits, channels);
0N/A //$fb what's that ??
0N/A //if (sampleSizeInBits == 8) {
0N/A // encoding = AudioFormat.Encoding.PCM_SIGNED;
0N/A //}
0N/A format = new AudioFormat(encoding, sampleRate,
0N/A sampleSizeInBits, channels,
0N/A frameSize, sampleRate, true);
0N/A break;
0N/A case AiffFileFormat.SSND_MAGIC:
0N/A // Data chunk.
0N/A // we are getting *weird* numbers for chunkLen sometimes;
0N/A // this really should be the size of the data chunk....
0N/A int dataOffset = dis.readInt();
0N/A int blocksize = dis.readInt();
0N/A chunkRead += 8;
0N/A
0N/A // okay, now we are done reading the header. we need to set the size
0N/A // of the data segment. we know that sometimes the value we get for
0N/A // the chunksize is absurd. this is the best i can think of:if the
0N/A // value seems okay, use it. otherwise, we get our value of
0N/A // length by assuming that everything left is the data segment;
0N/A // its length should be our original length (for all AIFF data chunks)
0N/A // minus what we've read so far.
0N/A // $$kk: we should be able to get length for the data chunk right after
0N/A // we find "SSND." however, some aiff files give *weird* numbers. what
0N/A // is going on??
0N/A
0N/A if (chunkLen < length) {
0N/A dataLength = chunkLen - chunkRead;
0N/A } else {
0N/A // $$kk: 11.03.98: this seems dangerous!
0N/A dataLength = length - (fileRead + chunkRead);
0N/A }
0N/A ssndFound = true;
0N/A break;
0N/A } // switch
0N/A fileRead += chunkRead;
0N/A // skip the remainder of this chunk
0N/A if (!ssndFound) {
0N/A int toSkip = chunkLen - chunkRead;
0N/A if (toSkip > 0) {
0N/A fileRead += dis.skipBytes(toSkip);
0N/A }
0N/A }
0N/A } // while
0N/A
0N/A if (format == null) {
0N/A throw new UnsupportedAudioFileException("missing COMM chunk");
0N/A }
0N/A AudioFileFormat.Type type = aifc?AudioFileFormat.Type.AIFC:AudioFileFormat.Type.AIFF;
0N/A
0N/A return new AiffFileFormat(type, totallength, format, dataLength / format.getFrameSize());
0N/A }
0N/A
0N/A // HELPER METHODS
0N/A /** write_ieee_extended(DataOutputStream dos, double f) throws IOException {
0N/A * Extended precision IEEE floating-point conversion routine.
0N/A * @argument DataOutputStream
0N/A * @argument double
0N/A * @return void
0N/A * @exception IOException
0N/A */
0N/A private void write_ieee_extended(DataOutputStream dos, double f) throws IOException {
0N/A
0N/A int exponent = 16398;
0N/A double highMantissa = f;
0N/A
0N/A // For now write the integer portion of f
0N/A // $$jb: 03.30.99: stay in synch with JMF on this!!!!
0N/A while (highMantissa < 44000) {
0N/A highMantissa *= 2;
0N/A exponent--;
0N/A }
0N/A dos.writeShort(exponent);
0N/A dos.writeInt( ((int) highMantissa) << 16);
0N/A dos.writeInt(0); // low Mantissa
0N/A }
0N/A
0N/A
0N/A /**
0N/A * read_ieee_extended
0N/A * Extended precision IEEE floating-point conversion routine.
0N/A * @argument DataInputStream
0N/A * @return double
0N/A * @exception IOException
0N/A */
0N/A private double read_ieee_extended(DataInputStream dis) throws IOException {
0N/A
0N/A double f = 0;
0N/A int expon = 0;
0N/A long hiMant = 0, loMant = 0;
0N/A long t1, t2;
0N/A double HUGE = ((double)3.40282346638528860e+38);
0N/A
0N/A
0N/A expon = dis.readUnsignedShort();
0N/A
0N/A t1 = (long)dis.readUnsignedShort();
0N/A t2 = (long)dis.readUnsignedShort();
0N/A hiMant = t1 << 16 | t2;
0N/A
0N/A t1 = (long)dis.readUnsignedShort();
0N/A t2 = (long)dis.readUnsignedShort();
0N/A loMant = t1 << 16 | t2;
0N/A
0N/A if (expon == 0 && hiMant == 0 && loMant == 0) {
0N/A f = 0;
0N/A } else {
0N/A if (expon == 0x7FFF)
0N/A f = HUGE;
0N/A else {
0N/A expon -= 16383;
0N/A expon -= 31;
0N/A f = (hiMant * Math.pow(2, expon));
0N/A expon -= 32;
0N/A f += (loMant * Math.pow(2, expon));
0N/A }
0N/A }
0N/A
0N/A return f;
0N/A }
0N/A
0N/A
0N/A
0N/A}