| /* |
| * 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; |
| } |
| } |