Edinburgh Speech Tools  2.1-release
EST_SMatrix.cc
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33 /* Author : Paul Taylor */
34 /* Date : April 1995 */
35 /*-----------------------------------------------------------------------*/
36 /* Matrix Class for shorts */
37 /* */
38 /*=======================================================================*/
39 
40 #include <cstdlib>
41 #include <cstdio>
42 #include <fstream>
43 #include <cmath>
44 #include <climits>
45 #include "EST_String.h"
46 #include "EST_types.h"
47 #include "EST_FileType.h"
48 #include "EST_Option.h"
49 #include "EST_SMatrix.h"
50 #include "EST_cutils.h" // for swap functions
51 #include "EST_Token.h"
52 #include "rateconv.h"
53 
55 :EST_TSimpleMatrix<short>(a.num_rows(), a.num_columns())
56 {
57  short vv = 0;
58  if (b < 0)
59  return;
60  if (b == 0)
61  fill(vv);
62 }
63 
64 int EST_SMatrix::rateconv(int in_samp_freq, int out_samp_freq)
65 {
66  short *in_buf = new short[num_rows()];
67  short ** results = new short *[num_columns()];
68  int *len = new int[num_columns()];
69  int max_len=0;
70 
71  for(ssize_t c=0; c<num_columns(); c++)
72  {
73  short *out_buf;
74  int osize;
75 
76  copy_column(c, in_buf);
77 
78  if (::rateconv(in_buf,
79  num_rows(), &out_buf, &osize,
80  in_samp_freq, out_samp_freq) == 0)
81  {
82  results[c]=out_buf;
83  len[c]=osize;
84  if (osize > max_len)
85  max_len = osize;
86  }
87  else {
88  delete [] results;
89  delete [] len;
90  return -1;
91  }
92  }
93  delete [] in_buf;
94 
95  resize(max_len, EST_CURRENT, 0);
96  fill(0);
97 
98  for(ssize_t c1=0; c1<num_columns(); c1++)
99  {
100  set_column(c1, results[c1], 0, len[c1]);
101  delete [] results[c1];
102  }
103 
104  delete [] results;
105  delete [] len;
106  return 0;
107 }
108 
void set_column(ssize_t n, const short *buf, ptrdiff_t offset=0, int num=-1)
void copy_column(ssize_t c, short *buf, ptrdiff_t offset=0, int num=-1) const
ssize_t num_columns() const
return number of columns
Definition: EST_TMatrix.h:179
const int EST_CURRENT
ssize_t num_rows() const
return number of rows
Definition: EST_TMatrix.h:177
int ssize_t
EST_SMatrix()
default constructor
Definition: EST_SMatrix.h:60
void resize(int rows, int cols, int set=1)
resize matrix
A subclass of EST_TMatrix which copies using memcopy.
int rateconv(int old_sr, int new_sr)
Definition: EST_SMatrix.cc:64