Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/Envelope.h
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00001 /*
00002 ** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca>
00003 **
00004 ** This program is free software; you can redistribute it and/or modify
00005 ** it under the terms of the GNU General Public License as published by
00006 ** the Free Software Foundation; either version 2 of the License, or
00007 ** (at your option) any later version.
00008 **
00009 ** This program is distributed in the hope that it will be useful,
00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 ** GNU General Public License for more details.
00013 **
00014 ** You should have received a copy of the GNU General Public License
00015 ** along with this program; if not, write to the Free Software
00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017 */
00018 
00019 
00020 #ifndef MARSYAS_ENVELOPE_H
00021 #define MARSYAS_ENVELOPE_H
00022 
00023 #include <marsyas/system/MarSystem.h>
00024 
00025 
00026 namespace Marsyas
00027 {
00039 class Envelope: public MarSystem
00040 {
00041 private:
00042   void addControls();
00043   mrs_real target_;
00044   mrs_real rate_;
00045   mrs_real time_;
00046   mrs_real value_;
00047   mrs_real noteon_;
00048   mrs_real noteoff_;
00049   mrs_real sampleRate_;
00050 
00051   mrs_natural state_;
00052 
00053 
00054 public:
00055   Envelope(std::string name);
00056   ~Envelope();
00057   MarSystem* clone() const;
00058 
00059   void update();
00060   void myProcess(realvec& in, realvec& out);
00061 };
00062 
00063 } // namespace Marsyas
00064 
00065 #endif
00066