Java example source code file (SMPTESequence.java)

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Java - Java tags/keywords

after, audio, bytearrayoutputstream, fail, illegalargumentexception, inputstream, invalidmididataexception, ioexception, midi, runtimeexception, sequence, smptesequence, sound, testing

The SMPTESequence.java Java example source code

/*
 * Copyright (c) 2011, 2013, 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.
 */

/**
 * @test
 * @bug 6835393
 * @summary Tests that MidiFileReader correctly reads sequences with different division types
 * @author Alex Menkov
 */

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.Sequence;

public class SMPTESequence {

    static int failed = 0;

    public static void main(String[] args) {
        test(Sequence.PPQ);
        test(Sequence.SMPTE_24);
        test(Sequence.SMPTE_25);
        test(Sequence.SMPTE_30);
        test(Sequence.SMPTE_30DROP);

        if (failed > 0) {
            throw new RuntimeException("" + failed + " tests failed");
        }
    }

    static boolean test(float divisionType) {
        boolean result = false;
        try {
            log("Testing divisionType == " + divisionType);
            Sequence sequence = new Sequence(divisionType, 16, 1);
            float div1 = sequence.getDivisionType();

            ByteArrayOutputStream outStream = new ByteArrayOutputStream();
            MidiSystem.write(sequence, 1, outStream);

            InputStream inStream = new ByteArrayInputStream(outStream.toByteArray());

            sequence = MidiSystem.getSequence(inStream);
            float div2 = sequence.getDivisionType();

            log("After write/read got divisionType == " + div2);
            if (Math.abs(div2 - div1) < 0.001f) {
                result = true;
            }
        } catch (InvalidMidiDataException ex) {
            log(ex);
        } catch (IOException ex) {
            log(ex);
        } catch (IllegalArgumentException ex) {
            log(ex);
        }
        if (result) {
            log("OK");
        } else {
            log("FAIL");
            failed++;
        }
        return result;
    }

    static void log(String s) {
        System.out.println(s);
    }

    static void log(Exception ex) {
        log("got exception (" + ex.getClass().getSimpleName() + "): " + ex.getMessage());
    }

}