interpretor/libsndfile-1.0.25/tests/dither_test.c

   1 /*
   2 ** Copyright (C) 2003-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
   3 **
   4 ** This program is free software; you can redistribute it and/or modify
   5 ** it under the terms of the GNU General Public License as published by
   6 ** the Free Software Foundation; either version 2 of the License, or
   7 ** (at your option) any later version.
   8 **
   9 ** This program is distributed in the hope that it will be useful,
  10 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 ** GNU General Public License for more details.
  13 **
  14 ** You should have received a copy of the GNU General Public License
  15 ** along with this program; if not, write to the Free Software
  16 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17 */
  18
  19
  20
  21 #include        <stdio.h>
  22 #include        <stdlib.h>
  23 #include        <unistd.h>
  24 #include        <string.h>
  25 #include        <math.h>
  26
  27 #include        <sndfile.h>
  28
  29 #include        "utils.h"
  30
  31 #define BUFFER_LEN              (1<<16)
  32 #define LOG_BUFFER_SIZE 1024
  33
  34 static void     dither_test (const char *filename, int filetype) ;
  35
  36 /* Force the start of this buffer to be double aligned. Sparc-solaris will
  37 ** choke if its not.
  38 */
  39 static  short   data_out [BUFFER_LEN] ;
  40
  41 int
  42 main (int argc, char *argv [])
  43 {       int             do_all = 0 ;
  44         int             test_count = 0 ;
  45
  46         if (argc != 2)
  47         {       printf ("Usage : %s <test>\n", argv [0]) ;
  48                 printf ("    Where <test> is one of the following:\n") ;
  49                 printf ("           wav  - test WAV file peak chunk\n") ;
  50                 printf ("           aiff - test AIFF file PEAK chunk\n") ;
  51                 printf ("           all  - perform all tests\n") ;
  52                 exit (1) ;
  53                 } ;
  54
  55         do_all=!strcmp (argv [1], "all") ;
  56
  57         if (do_all || ! strcmp (argv [1], "wav"))
  58         {       dither_test ("dither.wav", SF_FORMAT_WAV | SF_FORMAT_PCM_U8) ;
  59                 test_count++ ;
  60                 } ;
  61
  62         if (do_all || ! strcmp (argv [1], "aiff"))
  63         {       dither_test ("dither.aiff", SF_FORMAT_AIFF | SF_FORMAT_PCM_S8) ;
  64                 test_count++ ;
  65                 } ;
  66
  67         if (do_all || ! strcmp (argv [1], "au"))
  68         {       dither_test ("dither.au", SF_FORMAT_AU | SF_FORMAT_PCM_S8) ;
  69                 test_count++ ;
  70                 } ;
  71
  72         if (do_all || ! strcmp (argv [1], "svx"))
  73         {       dither_test ("dither.svx", SF_FORMAT_SVX | SF_FORMAT_PCM_S8) ;
  74                 test_count++ ;
  75                 } ;
  76
  77         if (do_all || ! strcmp (argv [1], "nist"))
  78         {       dither_test ("dither.nist", SF_FORMAT_NIST | SF_FORMAT_PCM_S8) ;
  79                 test_count++ ;
  80                 } ;
  81
  82         if (do_all || ! strcmp (argv [1], "paf"))
  83         {       dither_test ("dither.paf", SF_FORMAT_PAF | SF_FORMAT_PCM_S8) ;
  84                 test_count++ ;
  85                 } ;
  86
  87         if (do_all || ! strcmp (argv [1], "ircam"))
  88         {       dither_test ("dither.ircam", SF_FORMAT_IRCAM | SF_FORMAT_PCM_S8) ;
  89                 test_count++ ;
  90                 } ;
  91
  92         if (do_all || ! strcmp (argv [1], "voc"))
  93         {       dither_test ("dither.voc", SF_FORMAT_VOC | SF_FORMAT_PCM_S8) ;
  94                 test_count++ ;
  95                 } ;
  96
  97         if (do_all || ! strcmp (argv [1], "w64"))
  98         {       dither_test ("dither.w64", SF_FORMAT_W64 | SF_FORMAT_PCM_S8) ;
  99                 test_count++ ;
 100                 } ;
 101
 102         if (do_all || ! strcmp (argv [1], "mat4"))
 103         {       dither_test ("dither.mat4", SF_FORMAT_MAT4 | SF_FORMAT_PCM_S8) ;
 104                 test_count++ ;
 105                 } ;
 106
 107         if (do_all || ! strcmp (argv [1], "mat5"))
 108         {       dither_test ("dither.mat5", SF_FORMAT_MAT5 | SF_FORMAT_PCM_S8) ;
 109                 test_count++ ;
 110                 } ;
 111
 112         if (do_all || ! strcmp (argv [1], "pvf"))
 113         {       dither_test ("dither.pvf", SF_FORMAT_PVF | SF_FORMAT_PCM_S8) ;
 114                 test_count++ ;
 115                 } ;
 116
 117         if (test_count == 0)
 118         {       printf ("Mono : ************************************\n") ;
 119                 printf ("Mono : *  No '%s' test defined.\n", argv [1]) ;
 120                 printf ("Mono : ************************************\n") ;
 121                 return 1 ;
 122                 } ;
 123
 124         return 0 ;
 125 } /* main */
 126
 127
 128 /*============================================================================================
 129 **      Here are the test functions.
 130 */
 131
 132 static void
 133 dither_test (const char *filename, int filetype)
 134 {       SNDFILE                 *file ;
 135         SF_INFO                 sfinfo ;
 136         SF_DITHER_INFO  dither ;
 137
 138         filetype = filetype ;
 139
 140         print_test_name ("dither_test", filename) ;
 141
 142         sfinfo.samplerate       = 44100 ;
 143         sfinfo.format           = filetype ;
 144         sfinfo.channels         = 1 ;
 145         sfinfo.frames           = 0 ;
 146
 147         file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ;
 148
 149         /* Check for old version of the dither API. */
 150         if (sf_command (file, SFC_SET_DITHER_ON_WRITE, NULL, SF_TRUE) == 0)
 151         {       printf ("\n\nLine %d: Should have an error here but don't.\n\n", __LINE__) ;
 152                 exit (1) ;
 153                 } ;
 154
 155         memset (&dither, 0, sizeof (dither)) ;
 156         dither.type = SFD_WHITE ;
 157         dither.level = 0 ;
 158
 159         if (sf_command (file, SFC_SET_DITHER_ON_WRITE, &dither, sizeof (dither)) != 0)
 160         {       printf ("\n\nLine %d: sf_command (SFC_SET_DITHER_ON_WRITE) returned error : %s\n\n",
 161                         __LINE__, sf_strerror (file)) ;
 162                 exit (1) ;
 163                 } ;
 164
 165         /* Write data to file. */
 166         test_write_short_or_die (file, 0, data_out, BUFFER_LEN, __LINE__) ;
 167         test_seek_or_die (file, 0, SEEK_SET, 0, sfinfo.channels, __LINE__) ;
 168
 169         sf_close (file) ;
 170
 171         file = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
 172
 173         if (sfinfo.frames != BUFFER_LEN)
 174         {       printf ("\n\nLine %d: Bad frame count %d (should be %d)\n\n", __LINE__, (int) sfinfo.frames, BUFFER_LEN) ;
 175                 } ;
 176
 177         sf_close (file) ;
 178         /*-unlink (filename) ;-*/
 179
 180         puts ("ok") ;
 181 } /* dither_test */
 182