Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/AuFileSource.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_AUFILESOURCE_H
00020 #define MARSYAS_AUFILESOURCE_H
00021 
00022 #include "AbsSoundFileSource.h"
00023 
00024 
00025 #include <string>
00026 #include <vector>
00027 
00028 namespace Marsyas
00029 {
00040 struct snd_header;
00041 
00042 
00043 class AuFileSource: public AbsSoundFileSource
00044 {
00045 
00046 private:
00047   snd_header* hdr_;
00048   std::string tfname_;
00049   std::string filename_;
00050 
00051   short *sdata_;
00052   short sval_;
00053   unsigned short usval_;
00054 
00055   unsigned char *cdata_;
00056   FILE *sfp_;
00057   long sfp_begin_;
00058 
00059   mrs_natural sampleSize_;// in bytes
00060   mrs_natural size_;
00061   mrs_natural csize_;
00062 
00063   mrs_natural samplesOut_;
00064 
00065   std::vector<std::string> sndFormats_;
00066   std::vector<int>    sndFormatSizes_;
00067 
00068   mrs_natural nChannels_;
00069   mrs_natural samplesToRead_;
00070   mrs_natural samplesToWrite_;
00071   mrs_natural samplesRead_;
00072 
00073   mrs_real duration_;
00074   mrs_natural advance_;
00075   mrs_natural cindex_;
00076   mrs_natural nt_;
00077 
00078   mrs_real repetitions_;
00079 
00080   unsigned long ByteSwapLong(unsigned long nLongNumber);
00081   unsigned short ByteSwapShort (unsigned short nValue);
00082 
00083   void addControls();
00084   void myUpdate(MarControlPtr sender);
00085 
00086   MarControlPtr ctrl_size_;
00087   MarControlPtr ctrl_pos_;
00088 
00089 
00090 public:
00091   AuFileSource(std::string name);
00092   AuFileSource(const AuFileSource& a);
00093   ~AuFileSource();
00094   MarSystem* clone() const;
00095 
00096   void getHeader(std::string filename);
00097   mrs_natural getLinear16(realvec& win);
00098 
00099   void myProcess(realvec& in,realvec &out);
00100 
00101 };
00102 
00103 }//namespace Marsyas
00104 
00105 #endif    /* !MARSYAS_AUFILESOURCE_H */
00106 
00107