Import upstream version 0.99.2

[fmit.git] / libs / Music / DummyMonoQuantizer.cpp

diff --git a/libs/Music/DummyMonoQuantizer.cpp b/libs/Music/DummyMonoQuantizer.cpp
new file mode 100644 (file)
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+++ b/libs/Music/DummyMonoQuantizer.cpp
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+// Copyright 2005 "Gilles Degottex"
+
+// This file is part of "Music"
+
+// "Music" is free software; you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation; either version 2.1 of the License, or
+// (at your option) any later version.
+//
+// "Music" is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+#include "MonoQuantizer.h"
+
+#include <iostream>
+using namespace std;
+#include <Music/Music.h>
+using namespace Music;
+#include "DummyMonoQuantizer.h"
+
+DummyMonoQuantizer::DummyMonoQuantizer()
+{
+       m_confidence = 1.0;
+}
+
+void DummyMonoQuantizer::quantize(double freq)
+{
+//     cerr << "DummyMonoQuantizer::quantize " << freq << endl;
+
+       double current_time = m_time.elapsed();
+
+       double current_center_freq = h2f(f2h(freq));
+       m_avg_freq = freq;
+
+       if(m_current_center_freq==0.0)
+       {
+               if(current_center_freq>0.0)
+               {
+                       m_current_center_freq = current_center_freq;
+                       m_duration.start();
+                       emit(noteStarted(m_current_center_freq, 0.0));
+               }
+       }
+       else
+       {
+               if(current_center_freq==0.0)
+               {
+                       m_current_center_freq = current_center_freq;
+                       emit(noteFinished(m_current_center_freq, 0.0));
+               }
+               else if(m_current_center_freq != current_center_freq)
+               {
+                       emit(noteFinished(m_current_center_freq, 0.0));
+                       m_current_center_freq = current_center_freq;
+                       m_duration.start();
+                       emit(noteStarted(m_current_center_freq, 0.0));
+               }
+       }
+}
+
+void DummyMonoQuantizer::reset()
+{
+       quantize(0.0);
+       m_avg_freq = 0.0;
+}