110 lines
3.9 KiB
Java
110 lines
3.9 KiB
Java
/*
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* Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.ByteArrayInputStream;
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import java.io.FilterInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import javax.sound.midi.MidiSystem;
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import javax.sound.midi.Sequence;
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/**
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* @test
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* @bug 4910986
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* @summary MIDI file parser breaks up on http connection
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*/
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public class SMFParserBreak {
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public static void main(String[] args) throws Exception {
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InputStream is = new ByteArrayInputStream(midifile);
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// create a buffered input stream that seems
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// to be on an unfortunate boundary for the
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// 1.4.2 SMF parser implementation
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is = new ChunkInputStream(is, 32);
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Sequence sequence = MidiSystem.getSequence(is);
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long duration = sequence.getMicrosecondLength() / 10000;
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System.out.println("Duration: "+duration+" deciseconds ");
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// the test is passed if no exception thrown
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System.out.println("Test passed");
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}
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// A MIDI file
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static byte[] midifile = {
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77, 84, 104, 100, 0, 0, 0, 6, 0, 1, 0, 3, -30, 120, 77, 84, 114, 107, 0,
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0, 0, 123, 0, -112, 30, 100, -113, 49, -128, 50, 100, -114, 69, -112, 31,
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100, -114, 33, -128, 51, 100, -114, 55, -112, 32, 100, -114, 120, -128, 52,
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100, -114, 40, -112, 33, 100, -114, 26, -128, 53, 100, -114, 26, -112, 34,
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100, -114, 76, -128, 54, 100, -114, 12, -112, 35, 100, -114, 91, -128, 55,
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100, -114, 69, -112, 36, 100, -114, 33, -128, 56, 100, -114, 55, -112, 37,
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100, -114, 84, -128, 57, 100, -114, 40, -112, 38, 100, -114, 26, -128, 58,
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100, -114, 26, -112, 39, 100, -113, 24, -128, 59, 100, -113, 60, -112, 40,
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100, -113, 110, -128, 60, 100, -113, 96, -112, 41, 100, -113, 39, -128, 61,
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100, 0, -1, 47, 0, 77, 84, 114, 107, 0, 0, 0, 4, 0, -1, 47, 0, 77, 84, 114,
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107, 0, 0, 0, 4, 0, -1, 47, 0
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};
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}
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/* an input stream that always returns data in chunks */
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class ChunkInputStream extends FilterInputStream {
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int chunkSize;
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int p = 0; // position
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public ChunkInputStream(InputStream is, int chunkSize) {
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super(is);
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this.chunkSize = chunkSize;
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}
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// override to increase counter
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public int read() throws IOException {
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int ret = super.read();
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if (ret >= 0) {
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p++;
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}
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return ret;
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}
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// override to make sure that read(byte[], int, int) is used
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public int read(byte[] b) throws IOException {
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return read(b, 0, b.length);
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}
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// override to split the data in chunks
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public int read(byte[] b, int off, int len) throws IOException {
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// if we would pass a chunk boundary,
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// only return up to the chunk boundary
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if ( (p / chunkSize) < ( (p+len) / chunkSize)) {
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// p+len is in the next chunk
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len -= ((p+len) % chunkSize);
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}
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int ret = super.read(b, off, len);
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if (ret >= 0) {
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p += ret;
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}
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return ret;
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}
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}
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