/*
* Copyright (c) 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.
*
* 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
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*/
import java.io.ByteArrayInputStream;
import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
/**
* @test
* @bug 6729836
*/
public final class RecognizeHugeAuFiles {
/**
* The size of the header's data.
*/
private static final byte AU_HEADER = 44;
/**
* This value should be used if the size in bytes is unknown.
*/
private static final /* unsigned int */ long MAX_UNSIGNED_INT = 0xffffffffL;
/**
* The list of supported au formats and sample size in bits per format.
*/
private static final byte[][] auTypeBits = {
{1, 8}, {2, 8}, {3, 16}, {4, 24}, {5, 32}, {6, 32}, {27, 8}
};
/**
* The list of supported sample rates(stored as unsigned int).
*/
private static final int[] sampleRates = {
8000, 11025, 16000, 22050, 32000, 37800, 44056, 44100, 47250, 48000,
50000, 50400, 88200, 96000, 176400, 192000, 352800, 2822400,
5644800, Integer.MAX_VALUE
};
/**
* The list of supported channels (stored as unsigned int).
*/
private static final int[] channels = {
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
};
/**
* The list of supported size of data (stored as unsigned int).
* <p>
* The {@code MAX_UNSIGNED_INT} used if the size in bytes is unknown.
*/
private static final long[] dataSizes = {
0, 1, 2, 3, Integer.MAX_VALUE - AU_HEADER, Integer.MAX_VALUE - 1,
Integer.MAX_VALUE, (long) Integer.MAX_VALUE + 1,
(long) Integer.MAX_VALUE + AU_HEADER, MAX_UNSIGNED_INT - AU_HEADER,
MAX_UNSIGNED_INT - 1, MAX_UNSIGNED_INT
};
public static void main(final String[] args) throws Exception {
for (final byte[] type : auTypeBits) {
for (final int sampleRate : sampleRates) {
for (final int channel : channels) {
for (final long dataSize : dataSizes) {
testAFF(type, sampleRate, channel, dataSize);
testAIS(type, sampleRate, channel, dataSize);
}
}
}
}
}
/**
* Tests the {@code AudioFileFormat} fetched from the fake header.
* <p>
* Note that the frameLength and byteLength are stored as int which means
* that {@code AudioFileFormat} will store the data above {@code MAX_INT}
* as NOT_SPECIFIED.
*/
private static void testAFF(final byte[] type, final int rate,
final int channel, final long size)
throws Exception {
final byte[] header = createHeader(type, rate, channel, size);
final ByteArrayInputStream fake = new ByteArrayInputStream(header);
final AudioFileFormat aff = AudioSystem.getAudioFileFormat(fake);
final AudioFormat format = aff.getFormat();
if (aff.getType() != AudioFileFormat.Type.AU) {
throw new RuntimeException("Error");
}
final long frameLength = size / format.getFrameSize();
if (size != MAX_UNSIGNED_INT && frameLength <= Integer.MAX_VALUE) {
if (aff.getFrameLength() != frameLength) {
System.err.println("Expected: " + frameLength);
System.err.println("Actual: " + aff.getFrameLength());
throw new RuntimeException();
}
} else {
if (aff.getFrameLength() != AudioSystem.NOT_SPECIFIED) {
System.err.println("Expected: " + AudioSystem.NOT_SPECIFIED);
System.err.println("Actual: " + aff.getFrameLength());
throw new RuntimeException();
}
}
final long byteLength = size + AU_HEADER;
if (byteLength <= Integer.MAX_VALUE) {
if (aff.getByteLength() != byteLength) {
System.err.println("Expected: " + byteLength);
System.err.println("Actual: " + aff.getByteLength());
throw new RuntimeException();
}
} else {
if (aff.getByteLength() != AudioSystem.NOT_SPECIFIED) {
System.err.println("Expected: " + AudioSystem.NOT_SPECIFIED);
System.err.println("Actual: " + aff.getByteLength());
throw new RuntimeException();
}
}
validateFormat(type[1], rate, channel, aff.getFormat());
}
/**
* Tests the {@code AudioInputStream} fetched from the fake header.
* <p>
* Note that the frameLength is stored as long which means
* that {@code AudioInputStream} must store all possible data from au file.
*/
private static void testAIS(final byte[] type, final int rate,
final int channel, final long size)
throws Exception {
final byte[] header = createHeader(type, rate, channel, size);
final ByteArrayInputStream fake = new ByteArrayInputStream(header);
final AudioInputStream ais = AudioSystem.getAudioInputStream(fake);
final AudioFormat format = ais.getFormat();
final long frameLength = size / format.getFrameSize();
if (size != MAX_UNSIGNED_INT) {
if (frameLength != ais.getFrameLength()) {
System.err.println("Expected: " + frameLength);
System.err.println("Actual: " + ais.getFrameLength());
throw new RuntimeException();
}
} else {
if (ais.getFrameLength() != AudioSystem.NOT_SPECIFIED) {
System.err.println("Expected: " + AudioSystem.NOT_SPECIFIED);
System.err.println("Actual: " + ais.getFrameLength());
throw new RuntimeException();
}
}
if (ais.available() < 0) {
System.err.println("available should be >=0: " + ais.available());
throw new RuntimeException();
}
validateFormat(type[1], rate, channel, format);
}
/**
* Tests that format contains the same data as were provided to the fake
* stream.
*/
private static void validateFormat(final byte bits, final int rate,
final int channel,
final AudioFormat format) {
if (Float.compare(format.getSampleRate(), rate) != 0) {
System.out.println("Expected: " + rate);
System.out.println("Actual: " + format.getSampleRate());
throw new RuntimeException();
}
if (format.getChannels() != channel) {
System.out.println("Expected: " + channel);
System.out.println("Actual: " + format.getChannels());
throw new RuntimeException();
}
int frameSize = ((bits + 7) / 8) * channel;
if (format.getFrameSize() != frameSize) {
System.out.println("Expected: " + frameSize);
System.out.println("Actual: " + format.getFrameSize());
throw new RuntimeException();
}
}
/**
* Creates the custom header of the AU file. It is expected that all passed
* data are supported.
*/
private static byte[] createHeader(final byte[] type, final int rate,
final int channel, final long size) {
return new byte[]{
// AU_SUN_MAGIC
0x2e, 0x73, 0x6e, 0x64,
// headerSize
0, 0, 0, AU_HEADER,
// dataSize
(byte) (size >> 24), (byte) (size >> 16), (byte) (size >> 8),
(byte) size,
// encoding
0, 0, 0, type[0],
// sampleRate
(byte) (rate >> 24), (byte) (rate >> 16), (byte) (rate >> 8),
(byte) (rate),
// channels
(byte) (channel >> 24), (byte) (channel >> 16),
(byte) (channel >> 8), (byte) (channel),
// data
0, 0, 0, 0, 0, 0
};
}
}