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23 
24 /* @test
25    @summary Test AudioFloatInputStream getFrameLength method
26    @modules java.desktop/com.sun.media.sound
27 */
28 
29 import java.io.*;
30 
31 import javax.sound.sampled.*;
32 
33 import com.sun.media.sound.*;
34 
35 public class GetFrameLength {
36 
37     static float[] test_float_array;
38     static byte[] test_byte_array;
39     static AudioFormat format = new AudioFormat(44100, 16, 1, true, false);
40 
getStream1()41     static AudioFloatInputStream getStream1()
42     {
43         return AudioFloatInputStream.getInputStream(format, test_byte_array, 0, test_byte_array.length);
44     }
45 
getStream2()46     static AudioFloatInputStream getStream2()
47     {
48         AudioInputStream strm = new AudioInputStream(new ByteArrayInputStream(test_byte_array), format, 1024);
49         return AudioFloatInputStream.getInputStream(strm);
50     }
51 
setUp()52     static void setUp() throws Exception {
53         test_float_array = new float[1024];
54         test_byte_array = new byte[1024*format.getFrameSize()];
55         for (int i = 0; i < 1024; i++) {
56             double ii = i / 1024.0;
57             ii = ii * ii;
58             test_float_array[i] = (float)Math.sin(10*ii*2*Math.PI);
59             test_float_array[i] += (float)Math.sin(1.731 + 2*ii*2*Math.PI);
60             test_float_array[i] += (float)Math.sin(0.231 + 6.3*ii*2*Math.PI);
61             test_float_array[i] *= 0.3;
62         }
63         AudioFloatConverter.getConverter(format).toByteArray(test_float_array, test_byte_array);
64     }
65 
main(String[] args)66     public static void main(String[] args) throws Exception {
67         setUp();
68         if(getStream1().getFrameLength() != 1024L)
69             throw new RuntimeException("Incorrect frame length returned.");
70         if(getStream2().getFrameLength() != 1024L)
71             throw new RuntimeException("Incorrect frame length returned.");
72     }
73 
74 }
75