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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 javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.Mixer;
import javax.sound.sampled.SourceDataLine;
/**
* @test
* @bug 4498848
* @summary Sound causes crashes on Linux (part 2)
*/
public class SDLLinuxCrash implements Runnable {
SourceDataLine sdl;
int size;
SDLLinuxCrash(SourceDataLine sdl, int size) {
this.sdl = sdl;
this.size = size - (size % 4);
}
public void run() {
int written=0;
//byte[] buffer = new byte[4096];
byte[] buffer = data;
out(" starting data line feed thread.");
try {
while (written<size) {
int toWrite = buffer.length;
if (toWrite+written > size) {
toWrite = size-written;
}
toWrite -= (toWrite % 4);
//out(" writing "+toWrite+" bytes.");
int thisWritten = sdl.write(buffer, 0, toWrite);
if (thisWritten<toWrite) {
out(" only wrote "+thisWritten+" bytes instead of "+toWrite);
}
if (thisWritten<=0) {
break;
}
written += thisWritten;
}
} catch (Throwable t) {
t.printStackTrace();
}
out(" leaving data line feed thread.");
}
public static long bytes2Ms(long bytes, AudioFormat format) {
return (long) (bytes/format.getFrameRate()*1000/format.getFrameSize());
}
static int staticLen=1000;
static boolean addLen=true;
public static SourceDataLine start() throws Exception {
AudioFormat format = new AudioFormat(44100, 16, 2, true, false);
if (addLen) {
staticLen+=(int) (staticLen/5)+1000;
} else {
staticLen-=(int) (staticLen/5)+1000;
}
if (staticLen>8*44100*4) {
staticLen = 8*44100*4;
addLen=!addLen;
}
if (staticLen<1000) {
staticLen = 1000;
addLen=!addLen;
}
int len = staticLen;
len -= (len % 4);
out(" preparing to play back "+len+" bytes == "+bytes2Ms(len, format)+"ms audio...");
DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
SourceDataLine sdl = (SourceDataLine) AudioSystem.getLine(info);
sdl.addLineListener(new LineListener() {
public void update(LineEvent e) {
if (e.getType() == LineEvent.Type.STOP) {
out(" calling close() from event dispatcher thread");
((SourceDataLine) e.getSource()).close();
}
else if (e.getType() == LineEvent.Type.CLOSE) {
}
}
});
out(" opening...");
sdl.open();
out(" starting...");
sdl.start();
(new Thread(new SDLLinuxCrash(sdl, len))).start();
return sdl;
}
public static void main(String[] args) throws Exception {
if (!isSoundcardInstalled()) {
return;
}
try {
int COUNT=10;
out();
out("4498848 Sound causes crashes on Linux (testing with SourceDataLine)");
if (args.length>0) {
COUNT=Integer.parseInt(args[0]);
}
for (int i=0; i<COUNT; i++) {
out(" trial "+(i+1)+"/"+COUNT);
SourceDataLine sdl = start();
int waitTime = 500+(1000*(i % 2)); // every 2nd time wait 1500, rather than 500ms.
out(" waiting for "+waitTime+" ms for audio playback to stop...");
Thread.sleep(waitTime);
out(" calling close() from main thread");
sdl.close();
// let the subsystem enough time to actually close the soundcard
out(" waiting for 2 seconds...");
Thread.sleep(2000);
out();
}
out(" waiting for 1 second...");
Thread.sleep(1000);
} catch (Exception e) {
e.printStackTrace();
out(" waiting for 1 second");
try {
Thread.sleep(1000);
} catch (InterruptedException ie) {}
// do not fail if no audio device installed - bug 4742021
if (!(e instanceof LineUnavailableException)) {
throw e;
}
}
out("Test passed");
}
static void out() {
out("");
}
static void out(String s) {
System.out.println(s); System.out.flush();
}
/**
* Returns true if at least one soundcard is correctly installed
* on the system.
*/
public static boolean isSoundcardInstalled() {
boolean result = false;
try {
Mixer.Info[] mixers = AudioSystem.getMixerInfo();
if (mixers.length > 0) {
result = AudioSystem.getSourceDataLine(null) != null;
}
} catch (Exception e) {
System.err.println("Exception occured: "+e);
}
if (!result) {
System.err.println("Soundcard does not exist or sound drivers not installed!");
System.err.println("This test requires sound drivers for execution.");
}
return result;
}
static final byte[] data = new byte[] {
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};
}
|
