sndfile2oct.c
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上传日期:2013-07-25
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文件大小:3k
- /*
- ** Copyright (C) 1999-2000 Erik de Castro Lopo <erikd@zip.com.au>
- **
- ** 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.
- */
- #include <stdio.h>
- #include <string.h>
- #include <ctype.h>
- #include <sndfile.h>
- #define BUFFER_LEN 400
- int main (int argc, char *argv[])
- { static double data [BUFFER_LEN] ;
- char *progname, *infilename, *outfilename, *cptr ;
- SNDFILE *infile ;
- SF_INFO sfinfo ;
- FILE *outfile ;
- unsigned int k, readcount, len, total ;
- progname = strrchr (argv [0], '/') ;
- progname = progname ? progname + 1 : argv [0] ;
-
- if (argc != 3)
- { printf ("n Usage : %s <input file> <output file>nn", progname) ;
- return 1 ;
- } ;
-
- infilename = argv [1] ;
- outfilename = argv [2] ;
-
- if (! strcmp (infilename, outfilename))
- { printf ("Error : Input and output filename are the same.n") ;
- return 1 ;
- } ;
-
- if (! (infile = sf_open_read (infilename, &sfinfo)))
- { printf ("Not able to open input file %s.n", infilename) ;
- sf_perror (NULL) ;
- return 1 ;
- } ;
-
- if (! (outfile = fopen (outfilename, "w")))
- { printf ("Not able to open output file %s.n", outfilename) ;
- sf_perror (NULL) ;
- return 1 ;
- } ;
-
- outfilename = strrchr (argv [2], '/') ;
- outfilename = outfilename ? outfilename + 1 : argv [2] ;
- if ((cptr = strchr (outfilename, '.')))
- *cptr = 0 ;
-
- fprintf (outfile, "# name: %sn", outfilename) ;
- fprintf (outfile, "# type: matrixn") ;
- fprintf (outfile, "# rows: %dn", sfinfo.samples) ;
- fprintf (outfile, "# columns: %d", sfinfo.channels) ;
-
- len = BUFFER_LEN - (BUFFER_LEN % sfinfo.channels) ;
- total = 0 ;
- while ((readcount = sf_read_double (infile, data, len, 0)))
- {
- for (k = 0 ; k < readcount ; k++)
- { if (! (k % sfinfo.channels))
- fprintf (outfile, "n") ;
- fprintf (outfile, "%g ", data [k]) ;
- } ;
- memset (data, 0, len * sizeof (double)) ;
- total += readcount ;
- } ;
- if (total != sfinfo.samples * sfinfo.channels)
- printf ("Error : Values read (%d) != samples * channels (%d)n", total, sfinfo.samples * sfinfo.channels) ;
- fclose (outfile) ;
- sf_close (infile) ;
-
- return 0 ;
- } /* main */