271 lines
9.8 KiB
Java
271 lines
9.8 KiB
Java
/*
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* Copyright (c) 2003, 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.File;
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import java.io.IOException;
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import javax.sound.sampled.AudioFormat;
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import javax.sound.sampled.AudioInputStream;
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import javax.sound.sampled.AudioSystem;
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import javax.sound.sampled.DataLine;
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import javax.sound.sampled.LineUnavailableException;
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import javax.sound.sampled.Mixer;
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import javax.sound.sampled.SourceDataLine;
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/**
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* @test
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* @key sound
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* @bug 4834461
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* @summary Applet hang when you load it during sound card is in use
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* @run main/manual PlaySine
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*/
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public class PlaySine {
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static int sampleRate = 8000;
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static double frequency = 2000.0;
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static double RAD = 2.0 * Math.PI;
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static byte[] audioData = new byte[sampleRate/2];
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static SourceDataLine source;
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static Mixer mixer = null;
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static AudioInputStream ais = null;
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static AudioFormat audioFormat;
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static String filename;
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public static void constructAIS() {
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try {
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ais = AudioSystem.getAudioInputStream(new File(filename));
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} catch (Exception e) {
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println("ERROR: could not open "+filename+": "+e.getMessage());
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}
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}
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public static void print(String s) {
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System.out.print(s);
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}
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public static void println(String s) {
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System.out.println(s);
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}
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public static void key() {
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println("");
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print("Press ENTER to continue...");
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try {
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System.in.read();
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} catch (IOException ioe) {
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}
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}
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static int audioLen = -1;
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static int audioOffset = -1;
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public static void writeData() {
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if (audioLen == -1) {
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audioLen = audioData.length;
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}
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if (audioOffset < 0) {
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audioOffset = audioLen;
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}
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try {
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if (audioOffset >= audioLen) {
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audioOffset = 0;
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if (ais!=null) {
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do {
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audioLen = ais.read(audioData, 0, audioData.length);
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if (audioLen < 0) {
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constructAIS();
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}
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} while (audioLen < 0);
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}
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}
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int toWrite = audioLen - audioOffset;
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int written = source.write(audioData, audioOffset, toWrite);
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audioOffset+=written;
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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public static int play(boolean shouldPlay) {
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int res = 0;
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DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
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try {
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println("Getting line from mixer...");
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source = (SourceDataLine) mixer.getLine(info);
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println("Opening line...");
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println(" -- if the program is hanging here, kill the process that has blocks the audio device now.");
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source.open(audioFormat);
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println("Starting line...");
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source.start();
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println("Writing audio data for 1 second...");
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long startTime = System.currentTimeMillis();
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while (System.currentTimeMillis() - startTime < 1000) {
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writeData();
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Thread.sleep(100);
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}
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res = 1;
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} catch (IllegalArgumentException iae) {
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println("IllegalArgumentException: "+iae.getMessage());
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println("Sound device cannot handle this audio format.");
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println("ERROR: Test environment not correctly set up.");
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if (source!=null) {
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source.close();
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}
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return 3;
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} catch (LineUnavailableException lue) {
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println("LineUnavailableException: "+lue.getMessage());
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if (shouldPlay) {
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println("ERROR: the line should be available now!.");
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println(" Verify that you killed the other audio process.");
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} else {
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println("Correct behavior! the bug is fixed.");
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}
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res = 2;
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} catch (Exception e) {
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println("Unexpected Exception: "+e.toString());
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}
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if (source != null) {
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println("Draining...");
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try {
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source.drain();
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} catch (NullPointerException npe) {
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println("(NullPointerException: bug fixed in J2SE 1.4.2");
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}
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println("Stopping...");
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source.stop();
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println("Closing...");
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source.close();
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source = null;
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}
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return res;
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}
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public static void main(String[] args) throws Exception {
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println("This is an interactive test. You can run it with a filename as argument");
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println("It is only meant to be run on linux, with the (old) OSS kernel drivers (/dev/dsp)");
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println("This test should not be run on systems with ALSA installed, or kernel 2.6 or higher.");
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println("");
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println("The test verifies that Java Sound fails correctly if another process is blocking");
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println("the audio device.");
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println("");
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println("Checking sanity...");
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Mixer.Info[] mixers=null;
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mixers = AudioSystem.getMixerInfo();
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for (int i=0; i<mixers.length; i++) {
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try {
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Mixer thisMixer = AudioSystem.getMixer(mixers[i]);
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String mixerName = thisMixer.getMixerInfo().getName();
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if (mixerName.indexOf("Java Sound")>=0
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&& mixerName.indexOf("Engine")>=0) {
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mixer = thisMixer;
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break;
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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if (mixer == null) {
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if (mixers.length==0) {
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System.out.println("ERROR: No mixers available!");
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} else {
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println("ERROR: Java Sound Engine could not be found.");
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}
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println("Cannot run this test.");
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return;
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}
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println(" ...using mixer "+mixer.getMixerInfo());
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String osname = System.getProperty("os.name");
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if ((osname == null) || (osname.toLowerCase().indexOf("linux")<0)) {
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println("ERROR: not running on linux (you are running on "+osname+")");
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return;
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}
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println(" ...running on "+osname);
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println(" ...sanity test OK.");
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filename = null;
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if (args.length>0) {
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File f = new File(args[0]);
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if (f.exists()) {
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filename = args[0];
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println("Opening "+filename);
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constructAIS();
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if (ais!=null) {
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audioFormat = ais.getFormat();
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}
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}
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}
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if (ais == null) {
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println("Using self-generated sine wave for playback");
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audioFormat = new AudioFormat((float)sampleRate, 8, 1, true, true);
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for (int i=0; i<audioData.length; i++) {
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audioData[i] = (byte)(Math.sin(RAD*frequency/sampleRate*i)*127.0);
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}
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}
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println("");
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println("Now, on a second console, run the following command:");
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println(" cat - < /dev/zero > /dev/dsp");
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key();
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println("After you press ENTER now, the mixer will be opened.");
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println("There are 3 possible cases that can occur:");
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println("1) you'll hear a sine wave");
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println(" -> you are running with mixing OSS drivers. ");
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println(" Some soundcards only provide mixing OSS drivers.");
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println(" Test environment not valid. ");
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println(" Repeat on another machine where you can reproduce the bug first.");
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println("2) this program stops doing anything after 'Opening line...'");
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println(" -> this is the bug.");
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println(" Kill the command on the other console with Ctrl-C, this program");
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println(" should continue working then.");
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println("3) this program reports a LineUnavailableException");
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println(" -> bug is fixed.");
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println(" OR you run with non-blocking OSS drivers.");
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println(" make sure that you can reproduce this bug first with e.g. J2SE 1.4.1");
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key();
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int playedFirst = play(false);
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int playedSecond = 0;
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if (playedFirst == 2) {
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println("");
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println("Now kill the other process with Ctrl-C.");
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println("After that, this program should be able to play ");
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println("the sine wave without problems.");
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key();
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playedSecond = play(true);
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}
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println("");
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if (playedFirst == 1) {
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println("Test FAILED.");
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}
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else if (playedFirst == 2 && playedSecond == 1) {
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println("Test SUCCESSFUL");
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} else {
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println("Test not failed (but not successful either...).");
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}
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}
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}
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