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/*
* Copyright (c) 2002, 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.ByteArrayInputStream;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.Sequence;
/**
* @test
* @bug 4910986
* @summary MIDI file parser breaks up on http connection
*/
public class SMFParserBreak {
public static void main(String[] args) throws Exception {
InputStream is = new ByteArrayInputStream(midifile);
// create a buffered input stream that seems
// to be on an unfortunate boundary for the
// 1.4.2 SMF parser implementation
is = new ChunkInputStream(is, 32);
Sequence sequence = MidiSystem.getSequence(is);
long duration = sequence.getMicrosecondLength() / 10000;
System.out.println("Duration: "+duration+" deciseconds ");
// the test is passed if no exception thrown
System.out.println("Test passed");
}
// A MIDI file
static byte[] midifile = {
77, 84, 104, 100, 0, 0, 0, 6, 0, 1, 0, 3, -30, 120, 77, 84, 114, 107, 0,
0, 0, 123, 0, -112, 30, 100, -113, 49, -128, 50, 100, -114, 69, -112, 31,
100, -114, 33, -128, 51, 100, -114, 55, -112, 32, 100, -114, 120, -128, 52,
100, -114, 40, -112, 33, 100, -114, 26, -128, 53, 100, -114, 26, -112, 34,
100, -114, 76, -128, 54, 100, -114, 12, -112, 35, 100, -114, 91, -128, 55,
100, -114, 69, -112, 36, 100, -114, 33, -128, 56, 100, -114, 55, -112, 37,
100, -114, 84, -128, 57, 100, -114, 40, -112, 38, 100, -114, 26, -128, 58,
100, -114, 26, -112, 39, 100, -113, 24, -128, 59, 100, -113, 60, -112, 40,
100, -113, 110, -128, 60, 100, -113, 96, -112, 41, 100, -113, 39, -128, 61,
100, 0, -1, 47, 0, 77, 84, 114, 107, 0, 0, 0, 4, 0, -1, 47, 0, 77, 84, 114,
107, 0, 0, 0, 4, 0, -1, 47, 0
};
}
/* an input stream that always returns data in chunks */
class ChunkInputStream extends FilterInputStream {
int chunkSize;
int p = 0; // position
public ChunkInputStream(InputStream is, int chunkSize) {
super(is);
this.chunkSize = chunkSize;
}
// override to increase counter
public int read() throws IOException {
int ret = super.read();
if (ret >= 0) {
p++;
}
return ret;
}
// override to make sure that read(byte[], int, int) is used
public int read(byte[] b) throws IOException {
return read(b, 0, b.length);
}
// override to split the data in chunks
public int read(byte[] b, int off, int len) throws IOException {
// if we would pass a chunk boundary,
// only return up to the chunk boundary
if ( (p / chunkSize) < ( (p+len) / chunkSize)) {
// p+len is in the next chunk
len -= ((p+len) % chunkSize);
}
int ret = super.read(b, off, len);
if (ret >= 0) {
p += ret;
}
return ret;
}
}
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