8027.org

Last week I had to test if some video in .3gp format worked on a particular handset, but I wanted to test it from a Doja app. Given that someone on doja-developer.net asked for it as well, I coded a quick example, quite similar my other JarInflater example, and here it is.

If your video lasts more than a few seconds, it will probably not fit in the 30KB .jar file, so I guess this should get the video from the network. I’ll leave that as an exercise for the reader…

1. /**
2. * 10:31 4/18/2005
3. * Miguel de Benito Delgado <nonick AT 8027 DOT org>
4. *
5. * This little app demonstrates how to load and display a video.
6. *
7. */
8.  
9. import com.nttdocomo.ui.*;
10. import javax.microedition.io.Connector;
11. import java.io.InputStream;
12.  
13. /**
14. *
15. */
16. public class VideoTest extends IApplication implements ComponentListener, MediaListener
17. {
18. Panel dialog;
19.  
20. Label label;
21. Button buttonPlay;
22. Button buttonStop;
23. Button buttonExit;
24.  
25. VisualPresenter player;
26.  
27. /**
28. * Application's entry point.
29. */
30. public void start()
31. {
32. try {
33. // Open the file
34. InputStream is = Connector.openInputStream("resource:///video.3gp");
35.  
36. /// And use it as usual.
37. MediaImage img = MediaManager.getImage(is);
38. img.use();
39. is.close();
40.  
41. /// This component will play the file
42. player = new VisualPresenter();
43. player.setImage(img);
44.  
45. /// Build the panel
46. dialog = new Panel();
47. label = new Label("video.3gp");
48. buttonPlay = new Button("Play");
49. buttonStop = new Button("Stop");
50. buttonExit = new Button("Exit");
51.  
52. HTMLLayout layout = new HTMLLayout();
53. dialog.setLayoutManager(layout);
54.  
55. dialog.setTitle("Video Player");
56.  
57. layout.begin(HTMLLayout.CENTER);
58.  
59. dialog.add(label);
60.  
61. layout.br();
62.  
63. dialog.add(player);
64.  
65. layout.br();
66.  
67. dialog.add(buttonPlay);
68. dialog.add(buttonStop);
69.  
70. layout.br();
71.  
72. dialog.add(buttonExit);
73.  
74. layout.end();
75.  
76. ///
77. // Set the focus at the play button
78. buttonPlay.requestFocus();
79.  
80. // Set ourselves as main Frame for the display
81. Display.setCurrent(dialog);
82.  
83. // Set ourselves as listener for events fired by the components in the panel
84. dialog.setComponentListener(this);
85. }
86. // Not very sofisticated error handling...
87. catch (Exception e) {
88. System.out.println("ooops: " + e.toString());
89. terminate();
90. }
91. }
92.  
93.  
94. /**
95. * Listen to events generated by the buttons.
96. */
97. public void componentAction(Component source, int type, int param)
98. {
99. try {
100. if (source == buttonPlay && type == BUTTON_PRESSED) {
101. System.out.println("Play");
102. player.play();
103. } else if (source == buttonStop && type == BUTTON_PRESSED) {
104. System.out.println("Stop");
105. player.stop();
106. } else if (source == buttonExit && type == BUTTON_PRESSED) {
107. System.out.println("Exit");
108. terminate();
109. }
110. } catch (Exception e) {
111. System.out.println("Exception caught in componentAction(): " + e.toString());
112. }
113. }
114.  
115.  
116. /**
117. * Listen to events generated by the VisualPresenter
118. */
119. public void mediaAction(MediaPresenter source, int type, int param)
120. {
121. if (source == player && type == VisualPresenter.VISUAL_PLAYING) {
122. System.out.println("Playing.");
123. label.setText("Playing...");
124. } else if (source == player && type == VisualPresenter.VISUAL_COMPLETE) {
125. System.out.println("End of file.");
126. label.setText("Finished.");
127. } else if (source == player && type == VisualPresenter.VISUAL_STOPPED) {
128. System.out.println("Stopped.");
129. label.setText("Stopped.");
130. }
131. }
132. }
133.  
134. Download this code: VideoTest.java

This entry was posted on Saturday, April 23rd, 2005 at 9:52 am and is filed under Java. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.