Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/sched/TmSampleCount.cpp
Go to the documentation of this file.
00001 /*
00002 ** Copyright (C) 1998-2005 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 #include <marsyas/sched/TmSampleCount.h>
00020 #include <marsyas/sched/Scheduler.h>
00021 #include <marsyas/system/MarSystem.h>
00022 
00023 using namespace std;
00024 using namespace Marsyas;
00025 
00026 TmSampleCount::TmSampleCount() : TmTimer("TmSampleCount","Virtual")
00027 {
00028   setReadCtrl(NULL,"mrs_natural/inSamples");
00029 }
00030 
00031 TmSampleCount::TmSampleCount(std::string name) : TmTimer("TmSampleCount",name)
00032 {
00033   setReadCtrl(NULL,"mrs_natural/inSamples");
00034 }
00035 
00036 TmSampleCount::TmSampleCount(MarSystem* ms, std::string cname) : TmTimer("TmSampleCount","Virtual")
00037 {
00038   setReadCtrl(ms,cname);
00039 }
00040 
00041 TmSampleCount::TmSampleCount(const TmSampleCount& s) : TmTimer(s)
00042 {
00043   setReadCtrl(s.read_src_,s.read_cname_);
00044 }
00045 
00046 TmSampleCount::~TmSampleCount() { }
00047 
00048 void
00049 TmSampleCount::setReadCtrl(MarSystem* ms, std::string cname)
00050 {
00051   read_src_=ms;
00052   read_cname_=cname;
00053   if (read_src_!=NULL)
00054     read_ctrl_=read_src_->getctrl(cname);
00055 }
00056 
00057 void
00058 TmSampleCount::setSource(MarSystem* ms)
00059 {
00060   read_src_=ms;
00061   if(read_src_!=NULL && read_cname_!="")
00062     read_ctrl_=read_src_->getctrl(read_cname_);
00063 //  setReadCtrl(ms,read_cname_);
00064 }
00065 
00066 void
00067 TmSampleCount::setSourceCtrl(std::string cname)
00068 {
00069   read_cname_=cname;
00070   if(read_src_!=NULL)
00071     read_ctrl_=read_src_->getctrl(read_cname_);
00072 //  setReadCtrl(read_src_,cname);
00073 }
00074 
00075 mrs_natural
00076 TmSampleCount::readTimeSrc()
00077 {
00078   if (read_src_==NULL) {
00079     MRSWARN("TmSampleCount::readTimeSrc()  time source is NULL");
00080     return 0;
00081   }
00082   mrs_natural m = read_ctrl_->to<mrs_natural>();
00083   return m;
00084 //    return (read_src_->getctrl(read_cname_)).toNatural() + getTime();
00085 }
00086 
00087 mrs_natural TmSampleCount::intervalsize(std::string interval)
00088 {
00089   return (read_src_==NULL) ? 0 :
00090          time2samples(interval,read_src_->getctrl("mrs_real/israte")->to<mrs_real>());
00091 }
00092 
00093 void
00094 TmSampleCount::updtimer(std::string cname, TmControlValue value)
00095 {
00096   bool type_error=false;
00097   if (cname=="MarSystem/source") {
00098     if (value.getType()==tmcv_marsystem) {
00099       setSource(value.toMarSystem());
00100     }
00101     else type_error=true;
00102   }
00103   else if (cname=="mrs_string/control") {
00104     if (value.getType()==tmcv_string) {
00105       setSourceCtrl(value.toString());
00106     }
00107     else type_error=true;
00108   }
00109   else {
00110     MRSWARN("TmSampleCount::updtimer(string,TmControlValue)  unsupported control");
00111   }
00112   if (type_error) {
00113     MRSWARN("TmSampleCount::updtimer(string,TmControlValue)  wrong type to "+cname);
00114   }
00115 }
00116