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Java > Open Source Codes > org > openlaszlo > iv > flash > commands > MP3SoundCommand


1 /*
2  * $Id: MP3SoundCommand.java,v 1.5 2002/07/22 23:16:04 skavish Exp $
3  *
4  * ===========================================================================
5  *
6  */
7
8 package org.openlaszlo.iv.flash.commands;
9
10 import org.openlaszlo.iv.flash.parser.*;
11 import org.openlaszlo.iv.flash.api.*;
12 import org.openlaszlo.iv.flash.api.action.*;
13 import org.openlaszlo.iv.flash.api.sound.*;
14 import org.openlaszlo.iv.flash.api.shape.*;
15 import org.openlaszlo.iv.flash.util.*;
16 import org.openlaszlo.iv.flash.cache.*;
17 import org.openlaszlo.iv.flash.url.*;
18
19 import org.openlaszlo.iv.flash.context.Context;
20 import java.io.*;
21
22 /**
23  * Class to support the Insert MP3 generator template.<BR>
24  *
25  * @author James Taylor
26  * @author Andrew Wason
27  */
28
29 public class MP3SoundCommand extends GenericCommand {
30
31     public MP3SoundCommand() {
32     }
33
34     public void doCommand( FlashFile file, Context context, Script parent, int frame ) throws IVException
35     {
36         // Get object parameters
37
38         String JavaDoc filename = getParameter( context, "filename", "" );
39         boolean cache = getBoolParameter( context, "cache", false );
40         boolean stream = getBoolParameter( context, "stream", false );
41         boolean stopAction = getBoolParameter( context, "stopaction", true );
42         int delay = getIntParameter( context, "delay", 0 );
43         String JavaDoc instancename = getParameter( context, "instancename" );
44
45         IVUrl url = IVUrl.newUrl( filename, file );
46
47         Script script = getInstance().copyScript();
48
49         FlashBuffer fob = (FlashBuffer) MediaCache.getMedia(url);
50         if( fob == null ) {
51             try {
52                 fob = new FlashBuffer(url.getInputStream());
53                 MediaCache.addMedia(url, fob, fob.getSize(), cache);
54             } catch( IOException e ) {
55                 throw new IVException(Resource.ERRCMDFILEREAD, new Object JavaDoc[] {filename, getCommandName()}, e);
56             }
57         }
58
59         Frame stopFrame = null;
60
61         try {
62             if( stream ) {
63                 SoundStreamBuilder ssb = SoundStreamBuilder.newSoundStreamBuilder(fob, file.getFrameRate());
64                 SoundStreamHead head = ssb.getSoundStreamHead();
65
66                 // Add the SoundStreamHead to the current frame in the parent script
67 parent.getFrameAt( frame ).addFlashObject( head );
68
69                 int frameCount = parent.getFrameCount();
70                 int f = frame;
71                 SoundStreamBlock block;
72
73                 while( ( block = ssb.getNextSoundStreamBlock() ) != null ) {
74                     if( f >= frameCount ) {
75                         parent.newFrame().addFlashObject( block );
76                     } else {
77                         parent.getFrameAt( f ).addFlashObject( block );
78                     }
79
80                     f++;
81                 }
82
83                 getInstance().def = Shape.newEmptyShape1();
84
85                 stopFrame = parent.getFrameAt( f - 1 );
86             } else {
87                 MP3Sound sound = MP3Sound.newMP3Sound(fob);
88                 // Set the delay if provided
89 if( delay != 0 ) {
90                     sound.setDelaySeek( delay );
91                 }
92
93                 SoundInfo soundInfo = SoundInfo.newSoundInfo( 0 );
94                 StartSound startSound = StartSound.newStartSound( sound, soundInfo );
95
96                 Frame newFrame = script.newFrame();
97                 newFrame.addFlashObject( startSound );
98
99                 stopFrame = newFrame;
100             }
101         } catch( IOException e ) {
102             throw new IVException(Resource.ERRCMDFILEREAD, new Object JavaDoc[] {filename, getCommandName()}, e);
103         }
104
105         if( instancename != null ) {
106             getInstance().name = instancename;
107         }
108
109         if( stopAction ) {
110             stopFrame.addStopAction();
111         }
112     }
113 }
114
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