Change to using distutils.

Currently only builds the simplsndobj module

1 files changed, 179 insertions, 0 deletions

diff --git a/src/sndobj/ReSyn.cpp b/src/sndobj/ReSyn.cpp
new file mode 100644
index 0000000..9d72b12
--- /dev/null
+++ b/src/sndobj/ReSyn.cpp
@@ -0,0 +1,179 @@
+ 
+////////////////////////////////////////////////////////////////////////
+// This file is part of the SndObj library
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program 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 General Public License for more details.
+//
+// You should have received a copy of the GNU 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 
+//
+
+// Copyright (c)Victor Lazzarini, 1997-2004
+// See License.txt for a disclaimer of all warranties
+// and licensing information
+
+#include "ReSyn.h"
+#include "IFGram.h"
+
+ReSyn::ReSyn(){
+  AddMsg("pitch", 31);
+  AddMsg("timescale", 32);
+
+}
+
+ReSyn::ReSyn(SinAnal* input, int maxtracks, Table* table, double pitch, double scale, double tscal, 
+	     int vecsize, double sr)	  
+  : SinSyn(input, maxtracks, table, scale, vecsize, sr){
+  m_pitch = pitch;
+  AddMsg("pitch", 31);
+  AddMsg("timescale", 32);
+}
+
+ReSyn::~ReSyn(){
+}
+
+int
+ReSyn::Set(char* mess, double value){
+
+  switch(FindMsg(mess)){
+
+  case 31:
+    SetPitch(value);
+    return 1;
+	
+  case 32:
+    SetTimeScale(value);
+    return 1;
+	
+
+  default:
+    return SinSyn::Set(mess, value);
+
+  }
+}
+
+
+short
+ReSyn::DoProcess() {
+	
+  if(m_input){
+		
+    double ampnext,amp,freq, freqnext, phase,phasenext;
+    double a2, a3, phasediff, cph;
+    int i3, i, j, ID;
+    int notcontin = 0;
+    bool contin = false;
+    int oldtracks = m_tracks;
+    double* tab = m_ptable->GetTable(); 
+    if((m_tracks = ((SinAnal *)m_input)->GetTracks()) >
+       m_maxtracks) m_tracks = m_maxtracks;
+		
+    memset(m_output, 0, sizeof(double)*m_vecsize);
+		
+    // for each track
+    i = j = 0;
+    while(i < m_tracks*3){
+			
+      i3 = i/3;
+      ampnext =  m_input->Output(i)*m_scale;
+      freqnext = m_input->Output(i+1)*TWOPI*m_pitch; 
+      phasenext = m_input->Output(i+2)*m_tscal*m_pitch;
+      ID = ((SinAnal *)m_input)->GetTrackID(i3);
+
+      j = i3+notcontin;
+			
+      if(i3 < oldtracks-notcontin){
+	if(m_trackID[j]==ID){	
+	  // if this is a continuing track  	
+	  contin = true;	
+	  freq = m_freqs[j];
+	  phase = m_phases[j];
+	  amp = m_amps[j];
+					
+	}
+	else {
+	  // if this is  a dead track
+	  contin = false;
+	  freqnext = freq = m_freqs[j];
+	  phase = m_phases[j];
+	  phasenext = phase + freq*m_factor;
+	  amp = m_amps[j]; 
+	  ampnext = 0.f;
+	}
+      }
+			
+      else{ 
+	// new tracks
+	contin = true;
+	freq = freqnext;
+	phase = phasenext - freq*m_factor;
+	amp = 0.f;
+      }
+			
+      //phase difference
+      phasediff = phasenext - phase;
+      while(phasediff >= PI) phasediff -= TWOPI;
+      while(phasediff < -PI) phasediff += TWOPI;
+      // update phasediff to match the freq
+      cph = ((freq+freqnext)*m_factor/2. - phasediff)/TWOPI;
+      phasediff += TWOPI*cph;
+		   
+      // interpolation coefs
+      a2 = 3./m_facsqr * (phasediff - m_factor/3.*(2*freq+freqnext));
+      a3 = 1./(3*m_facsqr)  * (freqnext - freq - 2*a2*m_factor);
+
+      // interpolation resynthesis loop	
+      double inc1, inc2, a, ph, cnt, frac;
+      int ndx;
+      a = amp;
+      ph = phase;
+      cnt = 0;
+      inc1 = (ampnext - amp)/m_vecsize;
+      inc2 = 1/m_sr;  
+      for(m_vecpos=0; m_vecpos < m_vecsize; m_vecpos++){
+		
+	if(m_enable) {    
+	  // table lookup oscillator
+	  ph *= m_LoTWOPI;
+	  while(ph < 0) ph += m_size;
+	  while(ph >= m_size) ph -= m_size;
+	  ndx = Ftoi(ph);
+	  frac = ph - ndx;
+	  m_output[m_vecpos] += a*(tab[ndx] + (tab[ndx+1] - tab[ndx])*frac); 
+	  a += inc1; 
+	  cnt += inc2;
+	  ph = phase + cnt*(freq + cnt*(a2 + a3*cnt)); 
+					
+	}
+	else m_output[m_vecpos] = 0.f;		
+      }
+
+      // keep amp, freq, and phase values for next time
+      if(contin){
+	m_amps[i3] = ampnext;
+	m_freqs[i3] = freqnext;
+	phasenext += (cph - Ftoi(cph))*TWOPI; 
+	while(phasenext < 0) phasenext += TWOPI;
+	while(phasenext >= TWOPI) phasenext -= TWOPI;
+	m_phases[i3] = phasenext;  
+	m_trackID[i3] = ID;    
+	i += 3;
+      } else notcontin++;
+    } 
+    return 1;
+  }
+  else {
+    m_error  = 1;
+    return 0;
+  }
+ 
+}