1/* 2 * Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24import javax.sound.sampled.AudioFormat; 25import javax.sound.sampled.AudioSystem; 26import javax.sound.sampled.DataLine; 27import javax.sound.sampled.LineUnavailableException; 28import javax.sound.sampled.Mixer; 29import javax.sound.sampled.SourceDataLine; 30 31/** 32 * @test 33 * @bug 4661602 34 * @summary Buffersize is checked when re-opening line 35 */ 36public class BufferSizeCheck { 37 38 public static void main(String[] args) throws Exception { 39 boolean realTest = false; 40 if (!isSoundcardInstalled()) { 41 return; 42 } 43 44 try { 45 out("4661602: Buffersize is checked when re-opening line"); 46 AudioFormat format = new AudioFormat(44100, 16, 2, true, false); 47 DataLine.Info info = new DataLine.Info(SourceDataLine.class, format); 48 SourceDataLine sdl = (SourceDataLine) AudioSystem.getLine(info); 49 out("Opening with buffersize 12000..."); 50 sdl.open(format, 12000); 51 out("Opening with buffersize 11000..."); 52 realTest=true; 53 sdl.open(format, 11000); 54 try { 55 sdl.close(); 56 } catch(Throwable t) {} 57 } catch (Exception e) { 58 e.printStackTrace(); 59 // do not fail if no audio device installed - bug 4742021 60 if (realTest || !(e instanceof LineUnavailableException)) { 61 throw e; 62 } 63 } 64 out("Test passed"); 65 } 66 67 static void out(String s) { 68 System.out.println(s); System.out.flush(); 69 } 70 71 /** 72 * Returns true if at least one soundcard is correctly installed 73 * on the system. 74 */ 75 public static boolean isSoundcardInstalled() { 76 boolean result = false; 77 try { 78 Mixer.Info[] mixers = AudioSystem.getMixerInfo(); 79 if (mixers.length > 0) { 80 result = AudioSystem.getSourceDataLine(null) != null; 81 } 82 } catch (Exception e) { 83 System.err.println("Exception occured: "+e); 84 } 85 if (!result) { 86 System.err.println("Soundcard does not exist or sound drivers not installed!"); 87 System.err.println("This test requires sound drivers for execution."); 88 } 89 return result; 90 } 91} 92