/*
* Copyright (c) 2003, 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.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.Mixer;
import javax.sound.sampled.SourceDataLine;
/**
* @test
* @bug 4515126
* @summary Verify that the buffer passed to SourceDataLine.write() and
* Clip.open() will not be changed
*/
public class ChangingBuffer {
final static int samplerate = 44100;
final static byte[] buffer = new byte[16384];
static int successfulTests = 0;
private static void makeBuffer() {
for (int i=0; i<buffer.length; i++) {
buffer[i] = (byte) (i % 128);
}
}
private static void checkBufferSDL() throws Exception {
successfulTests++;
for (int i=0; i<buffer.length; i++) {
if (buffer[i] != ((byte) (i % 128))) {
throw new Exception("Buffer was changed by SourceDataLine.write()!. Test FAILED");
}
}
System.out.println(" -> passed for this line");
System.out.println("");
}
private static void checkBufferClip() throws Exception {
for (int i=0; i<buffer.length; i++) {
if (buffer[i] != (i % 128)) {
throw new Exception("Buffer was changed by Clip.open()!. Test FAILED");
}
}
System.out.println(" -> passed for this clip");
System.out.println("");
}
private static boolean doMixerClip(Mixer mixer, AudioFormat format) {
if (mixer==null) return false;
try {
System.out.println("Trying mixer "+mixer+":");
DataLine.Info info = new DataLine.Info(
Clip.class,
format,
(int) samplerate);
Clip clip = (Clip) mixer.getLine(info);
System.out.println(" - got clip: "+clip);
System.out.println(" - open with format "+format);
clip.open(format, buffer, 0, buffer.length);
System.out.println(" - playing...");
clip.start();
System.out.println(" - waiting while it's active...");
while (clip.isActive())
Thread.sleep(100);
System.out.println(" - waiting 100millis");
Thread.sleep(100);
System.out.println(" - drain1");
clip.drain();
System.out.println(" - drain2");
clip.drain();
System.out.println(" - stop");
clip.stop();
System.out.println(" - close");
clip.close();
System.out.println(" - closed");
} catch (Throwable t) {
System.out.println(" - Caught exception. Not failed.");
System.out.println(" - "+t.toString());
return false;
}
return true;
}
private static boolean doMixerSDL(Mixer mixer, AudioFormat format) {
if (mixer==null) return false;
try {
System.out.println("Trying mixer "+mixer+":");
DataLine.Info info = new DataLine.Info(
SourceDataLine.class,
format,
(int) samplerate);
SourceDataLine sdl = (SourceDataLine) mixer.getLine(info);
System.out.println(" - got sdl: "+sdl);
System.out.println(" - open with format "+format);
sdl.open(format);
System.out.println(" - start...");
sdl.start();
System.out.println(" - write...");
sdl.write(buffer, 0, buffer.length);
Thread.sleep(200);
System.out.println(" - drain...");
sdl.drain();
System.out.println(" - stop...");
sdl.stop();
System.out.println(" - close...");
sdl.close();
System.out.println(" - closed");
} catch (Throwable t) {
System.out.println(" - Caught exception. Not failed.");
System.out.println(" - "+t.toString());
return false;
}
return true;
}
private static void doAll(boolean bigEndian) throws Exception {
AudioFormat pcm = new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
samplerate, 16, 1, 2, samplerate, bigEndian);
Mixer.Info[] mixers = AudioSystem.getMixerInfo();
for (int i=0; i<mixers.length; i++) {
Mixer mixer = AudioSystem.getMixer(mixers[i]);
makeBuffer(); if (doMixerClip(mixer, pcm)) checkBufferClip();
makeBuffer(); if (doMixerSDL(mixer, pcm)) checkBufferSDL();
}
if (mixers.length==0) {
System.out.println("No mixers available!");
}
}
public static void main(String args[]) throws Exception{
doAll(true);
doAll(false);
if (successfulTests==0) {
System.out.println("Could not execute any of the tests. Test NOT failed.");
} else {
System.out.println("Test PASSED.");
}
}
}