interpretor/libsndfile-1.0.25/examples/generate.c

   1 /*
   2 ** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
   3 **
   4 ** All rights reserved.
   5 **
   6 ** Redistribution and use in source and binary forms, with or without
   7 ** modification, are permitted provided that the following conditions are
   8 ** met:
   9 **
  10 **     * Redistributions of source code must retain the above copyright
  11 **       notice, this list of conditions and the following disclaimer.
  12 **     * Redistributions in binary form must reproduce the above copyright
  13 **       notice, this list of conditions and the following disclaimer in
  14 **       the documentation and/or other materials provided with the
  15 **       distribution.
  16 **     * Neither the author nor the names of any contributors may be used
  17 **       to endorse or promote products derived from this software without
  18 **       specific prior written permission.
  19 **
  20 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22 ** TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23 ** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  24 ** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  25 ** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  26 ** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  27 ** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  28 ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  29 ** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  30 ** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31 */
  32
  33 #include "sfconfig.h"
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <math.h>
  39
  40 #include <sndfile.h>
  41
  42 #define BUFFER_LEN                      4096
  43
  44 static void encode_file (const char *infilename, const char *outfilename, int filetype) ;
  45
  46 int
  47 main (int argc, char **argv)
  48 {
  49         if (argc != 2)
  50         {       puts ("\nEncode a single input file into a number of different output ") ;
  51                 puts ("encodings. These output encodings can then be moved to another ") ;
  52                 puts ("OS for testing.\n") ;
  53                 puts ("    Usage : generate <filename>\n") ;
  54                 exit (1) ;
  55                 } ;
  56
  57         /* A couple of standard WAV files. Make sure Win32 plays these. */
  58         encode_file (argv [1], "pcmu8.wav"      , SF_FORMAT_WAV | SF_FORMAT_PCM_U8) ;
  59         encode_file (argv [1], "pcm16.wav"      , SF_FORMAT_WAV | SF_FORMAT_PCM_16) ;
  60         encode_file (argv [1], "imaadpcm.wav", SF_FORMAT_WAV | SF_FORMAT_MS_ADPCM) ;
  61         encode_file (argv [1], "msadpcm.wav", SF_FORMAT_WAV | SF_FORMAT_IMA_ADPCM) ;
  62         encode_file (argv [1], "gsm610.wav"     , SF_FORMAT_WAV | SF_FORMAT_GSM610) ;
  63
  64         /* Soundforge W64. */
  65         encode_file (argv [1], "pcmu8.w64"      , SF_FORMAT_W64 | SF_FORMAT_PCM_U8) ;
  66         encode_file (argv [1], "pcm16.w64"      , SF_FORMAT_W64 | SF_FORMAT_PCM_16) ;
  67         encode_file (argv [1], "imaadpcm.w64", SF_FORMAT_W64 | SF_FORMAT_MS_ADPCM) ;
  68         encode_file (argv [1], "msadpcm.w64", SF_FORMAT_W64 | SF_FORMAT_IMA_ADPCM) ;
  69         encode_file (argv [1], "gsm610.w64"     , SF_FORMAT_W64 | SF_FORMAT_GSM610) ;
  70
  71         return 0 ;
  72 } /* main */
  73
  74 /*============================================================================================
  75 **      Helper functions and macros.
  76 */
  77
  78 #define PUT_DOTS(k)                                     \
  79                         {       while (k--)                     \
  80                                         putchar ('.') ; \
  81                                 putchar (' ') ;         \
  82                                 }
  83
  84 /*========================================================================================
  85 */
  86
  87 static void
  88 encode_file (const char *infilename, const char *outfilename, int filetype)
  89 {       static float buffer [BUFFER_LEN] ;
  90
  91         SNDFILE         *infile, *outfile ;
  92         SF_INFO         sfinfo ;
  93         int                     k, readcount ;
  94
  95         printf ("    %s -> %s ", infilename, outfilename) ;
  96         fflush (stdout) ;
  97
  98         k = 16 - strlen (outfilename) ;
  99         PUT_DOTS (k) ;
 100
 101         if (! (infile = sf_open (infilename, SFM_READ, &sfinfo)))
 102         {       printf ("Error : could not open file : %s\n", infilename) ;
 103                 puts (sf_strerror (NULL)) ;
 104                 exit (1) ;
 105                 }
 106
 107         sfinfo.format = filetype ;
 108
 109         if (! sf_format_check (&sfinfo))
 110         {       sf_close (infile) ;
 111                 printf ("Invalid encoding\n") ;
 112                 return ;
 113                 } ;
 114
 115         if (! (outfile = sf_open (outfilename, SFM_WRITE, &sfinfo)))
 116         {       printf ("Error : could not open file : %s\n", outfilename) ;
 117                 puts (sf_strerror (NULL)) ;
 118                 exit (1) ;
 119                 } ;
 120
 121         while ((readcount = sf_read_float (infile, buffer, BUFFER_LEN)) > 0)
 122                 sf_write_float (outfile, buffer, readcount) ;
 123
 124         sf_close (infile) ;
 125         sf_close (outfile) ;
 126
 127         printf ("ok\n") ;
 128
 129         return ;
 130 } /* encode_file */
 131