Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/RawFileSource.h
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00001 /*
00002 ** Copyright (C) 1998-2010 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 #ifndef MARSYAS_RAWFILESOURCE_H
00020 #define MARSYAS_RAWFILESOURCE_H
00021 
00022 #include "AbsSoundFileSource.h"
00023 #include <sys/stat.h>
00024 
00025 namespace Marsyas
00026 {
00039 class RawFileSource : public AbsSoundFileSource
00040 {
00041 private:
00042   FILE *sfp_;
00043   mrs_real time_;
00044   mrs_real rate_;               // loop frequency
00045 
00046   short *buffer_;
00047 
00048 
00049   realvec data_;
00050   mrs_real phaseOffset_;
00051 
00052   unsigned long fileSize_;
00053   unsigned long bufferSize_;
00054   bool byteSwap_;
00055   mrs_natural ch_, pos_, nChannels_;
00056 
00057   void addControls();
00058   void myUpdate(MarControlPtr sender);
00059   void swap16(unsigned char *ptr);
00060 
00061   void readData( unsigned long index );
00062   bool getRawInfo( const char *fileName );
00063   void getHeader(std::string filename);
00064 
00065 public:
00066   RawFileSource(std::string name);
00067   ~RawFileSource();
00068 
00069   MarSystem* clone() const;
00070   void myProcess(realvec& in,realvec &out);
00071 
00072 
00073   // helpers for synthesis routines
00074   void setFrequency(mrs_real frequency);
00075   void openFile(std::string filename); //[?] not coherent with interface defined by AbsSoundFileSource!
00076 };
00077 
00078 }//namespace Marsyas
00079 
00080 #endif    /* !MARSYAS_RAWFILESOURCE_H */