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Java > Open Source Codes > sample > blocks > stream > file > MediaStreamReceiver


1 /*
2  * Copyright 2002 by
3  * <a HREF="http://www.coridan.com">Coridan</a>
4  * <a HREF="mailto: support@coridan.com ">support@coridan.com</a>
5  *
6  * The contents of this file are subject to the Mozilla Public License Version
7  * 1.1 (the "License"); you may not use this file except in compliance with the
8  * License. You may obtain a copy of the License at
9  * http://www.mozilla.org/MPL/
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the
14  * License.
15  *
16  * The Original Code is "MantaRay" (TM).
17  *
18  * The Initial Developer of the Original Code is Amir Shevat.
19  * Portions created by the Initial Developer are Copyright (C) 2006
20  * Coridan Inc. All Rights Reserved.
21  *
22  * Contributor(s): all the names of the contributors are added in the source
23  * code where applicable.
24  *
25  * Alternatively, the contents of this file may be used under the terms of the
26  * LGPL license (the "GNU LESSER GENERAL PUBLIC LICENSE"), in which case the
27  * provisions of LGPL are applicable instead of those above. If you wish to
28  * allow use of your version of this file only under the terms of the LGPL
29  * License and not to allow others to use your version of this file under
30  * the MPL, indicate your decision by deleting the provisions above and
31  * replace them with the notice and other provisions required by the LGPL.
32  * If you do not delete the provisions above, a recipient may use your version
33  * of this file under either the MPL or the GNU LESSER GENERAL PUBLIC LICENSE.
34  
35  *
36  * This library is free software; you can redistribute it and/or modify it
37  * under the terms of the MPL as stated above or under the terms of the GNU
38  * Lesser General Public License as published by the Free Software Foundation;
39  * either version 2.1 of the License, or any later version.
40  *
41  * This library is distributed in the hope that it will be useful, but WITHOUT
42  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
43  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
44  * License for more details.
45  */
46 package sample.blocks.stream.file;
47
48 import java.io.BufferedInputStream JavaDoc;
49 import java.io.IOException JavaDoc;
50 import java.io.InputStream JavaDoc;
51
52
53 import javax.sound.midi.InvalidMidiDataException JavaDoc;
54 import javax.sound.midi.MidiUnavailableException JavaDoc;
55
56 import javax.sound.sampled.AudioFormat JavaDoc;
57 import javax.sound.sampled.AudioInputStream JavaDoc;
58 import javax.sound.sampled.AudioSystem JavaDoc;
59 import javax.sound.sampled.DataLine JavaDoc;
60 import javax.sound.sampled.SourceDataLine JavaDoc;
61
62 import org.mr.api.blocks.MantaInputStream;
63
64 /*=================================================================================
65   For instructions on how to run this sample please refer to the file
66   sample\blocks\stream\file\Readme.txt under the MantaRay installation directory.
67 ==================================================================================*/
68
69 /*
70  * @author Amir Shevat
71  */
72 public class MediaStreamReceiver {
73     public static final int BLOCK_SIZE = 1024;
74     public static final String JavaDoc queueName="midi";
75
76     public static void main(String JavaDoc[] args) throws Exception JavaDoc {
77
78         MantaInputStream feed = new MantaInputStream();
79         feed.connect(queueName,MantaInputStream.QUEUE);
80         Thread.sleep(5000);
81         System.out.println("Ready to receive stream files on queue "+queueName);
82         BufferedInputStream JavaDoc buffFeed = new BufferedInputStream JavaDoc(feed);
83         stream(buffFeed);
84
85     }//main
86
87     public static void stream(InputStream JavaDoc in)
88         throws IOException JavaDoc, InvalidMidiDataException JavaDoc, MidiUnavailableException JavaDoc
89     {
90
91         AudioInputStream JavaDoc audioInputStream = null;
92         try
93         {
94             audioInputStream = AudioSystem.getAudioInputStream(in);
95         }
96         catch (Throwable JavaDoc t)
97         {
98             t.printStackTrace();
99             System.exit(1);
100         }
101
102
103         AudioFormat JavaDoc audioFormat = audioInputStream.getFormat();
104
105
106         SourceDataLine JavaDoc sourceDataLine = null;
107         DataLine.Info JavaDoc info = new DataLine.Info JavaDoc(SourceDataLine JavaDoc.class,
108                                                  audioFormat);
109         try
110         {
111             sourceDataLine = (SourceDataLine JavaDoc) AudioSystem.getLine(info);
112
113             sourceDataLine.open(audioFormat);
114         }catch (Throwable JavaDoc t)
115         {
116             t.printStackTrace();
117             return;
118         }
119
120
121         sourceDataLine.start();
122
123
124         int nBytesRead = 0;
125         byte[] abData = new byte[BLOCK_SIZE];
126         while (nBytesRead != -1)
127         {
128             try
129             {
130                 nBytesRead = audioInputStream.read(abData, 0, abData.length);
131             }
132             catch (IOException JavaDoc e)
133             {
134                 e.printStackTrace();
135             }
136             if (nBytesRead >= 0)
137             {
138                 int nBytesWritten = sourceDataLine.write(abData, 0, nBytesRead);
139             }
140         }
141
142         /*
143          * Wait until all data is played.
144         */
145         sourceDataLine.drain();
146
147         /*
148          * All data is played. close.
149         */
150         sourceDataLine.close();
151
152     }//stream
153 }//MediaStreamReceiver
154
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