CLAM-Development  1.4.0
AudioAmplifier.cxx
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1 /*
2  * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
3  * UNIVERSITAT POMPEU FABRA
4  *
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  */
21 
22 #include "AudioAmplifier.hxx"
23 #include "ProcessingFactory.hxx"
24 
25 namespace CLAM
26 {
27 
28 namespace Hidden
29 {
30  static const char * metadata[] = {
31  "key", "AudioAmplifier",
32  "category", "Arithmetic Operations",
33  "description", "AudioAmplifier",
34  0
35  };
36  static FactoryRegistrator<ProcessingFactory, AudioAmplifier> reg = metadata;
37 }
38 
40  {
41  AddAll();
42  UpdateData();
43  SetMaxGain(1.);
44  SetPortsNumber(1);
45  SetInitGain(1.);
46  }
47 
48  void AudioAmplifier::ResizePorts(unsigned newSize)
49  {
50  unsigned oldSize = _inputs.size();
51  CLAM_ASSERT(_inputs.size()==_outputs.size(),
52  "AudioAmplifier had different number of inputs and outputs");
53  for (unsigned i = newSize; i<oldSize; i++)
54  {
55  delete _inputs[i];
56  delete _outputs[i];
57  }
58  _inputs.resize(newSize);
59  _outputs.resize(newSize);
60  for (unsigned i = oldSize; i<newSize; i++)
61  {
62  std::ostringstream number;
63  if (i>0) number << " " << i;
64  _inputs[i] = new AudioInPort("Input Audio" + number.str(), this );
65  _outputs[i] = new AudioOutPort ( "Audio Output" + number.str(), this);
66  }
67  }
68 }