└── EncodeAudio.pde


/EncodeAudio.pde:
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 1 | import java.awt.datatransfer.*;
 2 | import java.awt.Toolkit;
 3 | import javax.swing.JOptionPane;
 4 | import ddf.minim.*;
 5 | 
 6 | int SAMPLES = 30000;
 7 | 
 8 | Minim minim;
 9 | AudioSample sample;
10 | 
11 | void setup()
12 | {
13 |   size(512, 200);
14 |   
15 |   String file = selectInput("Select audio file to encode.");
16 | 
17 |   if (file == null) {
18 |     exit();
19 |     return;
20 |   }
21 |   
22 |   try {
23 |     Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
24 |   
25 |     minim = new Minim(this);
26 |     sample = minim.loadSample(file);
27 |     
28 |     float[] samples = sample.getChannel(BufferedAudio.LEFT);
29 |     float maxval = 0;
30 |   
31 |     for (int i = 0; i < samples.length; i++) {
32 |       if (abs(samples[i]) > maxval) maxval = samples[i];
33 |     }
34 |     
35 |     int start;
36 |     
37 |     for (start = 0; start < samples.length; start++) {
38 |       if (abs(samples[start]) / maxval > 0.01) break;
39 |     }
40 |   
41 |     String result = "";  
42 |     for (int i = start; i < samples.length && i - start < SAMPLES; i++) {
43 |       result += constrain(int(map(samples[i], -maxval, maxval, 0, 256)), 0, 255) + ", ";
44 |     }
45 |   
46 |     clipboard.setContents(new StringSelection(result), null);
47 |     
48 |     JOptionPane.showMessageDialog(null, "Audio data copied to the clipboard.", "Success!", JOptionPane.INFORMATION_MESSAGE);
49 |   } catch (Exception e) {
50 |     JOptionPane.showMessageDialog(null, "Maybe you didn't pick a valid audio file?\n" + e, "Error!", JOptionPane.ERROR_MESSAGE);
51 |   }
52 |   
53 |   exit();
54 | }
55 | 
56 | void stop()
57 | {
58 |   sample.close();
59 |   minim.stop();
60 |   super.stop();
61 | }
62 | 


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