release/src/router/libvorbis/test/test.c

   1 /********************************************************************
   2  *                                                                  *
   3  * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
   4  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
   5  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
   6  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
   7  *                                                                  *
   8  * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007             *
   9  * by the Xiph.Org Foundation http://www.xiph.org/                  *
  10  *                                                                  *
  11  ********************************************************************
  12
  13  function: vorbis coded test suite using vorbisfile
  14  last mod: $Id: test.c 13293 2007-07-24 00:09:47Z erikd $
  15
  16  ********************************************************************/
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <math.h>
  21
  22 #include "util.h"
  23 #include "write_read.h"
  24
  25 #define DATA_LEN        2048
  26
  27 #define MAX(a,b)        ((a) > (b) ? (a) : (b))
  28
  29
  30 static int check_output (const float * data_in, unsigned len);
  31
  32 int
  33 main(void){
  34   static float data_out [DATA_LEN] ;
  35   static float data_in [DATA_LEN] ;
  36
  37   /* Do safest and most used sample rates first. */
  38   int sample_rates [] = { 44100, 48000, 32000, 22050, 16000, 96000 } ;
  39   unsigned k ;
  40   int errors = 0 ;
  41
  42   gen_windowed_sine (data_out, ARRAY_LEN (data_out), 0.95);
  43
  44   for (k = 0 ; k < ARRAY_LEN (sample_rates); k ++) {
  45         char filename [64] ;
  46         snprintf (filename, sizeof (filename), "vorbis_%u.ogg", sample_rates [k]);
  47
  48         printf ("    %-20s : ", filename);
  49         fflush (stdout);
  50
  51         /* Set to know value. */
  52         set_data_in (data_in, ARRAY_LEN (data_in), 3.141);
  53
  54         write_vorbis_data_or_die (filename, sample_rates [k], data_out, ARRAY_LEN (data_out));
  55         read_vorbis_data_or_die (filename, sample_rates [k], data_in, ARRAY_LEN (data_in));
  56
  57         if (check_output (data_in, ARRAY_LEN (data_in)) != 0)
  58           errors ++ ;
  59         else {
  60           puts ("ok");
  61       remove (filename);
  62         }
  63   }
  64
  65   if (errors)
  66     exit (1);
  67
  68   return 0;
  69 }
  70
  71 static int
  72 check_output (const float * data_in, unsigned len)
  73 {
  74   float max_abs = 0.0 ;
  75   unsigned k ;
  76
  77   for (k = 0 ; k < len ; k++) {
  78     float temp = fabs (data_in [k]);
  79     max_abs = MAX (max_abs, temp);
  80   }
  81
  82   if (max_abs < 0.9) {
  83     printf ("Error : max_abs (%f) too small.\n", max_abs);
  84     return 1 ;
  85   } else if (max_abs > 1.0) {
  86     printf ("Error : max_abs (%f) too big.\n", max_abs);
  87     return 1 ;
  88   }
  89
  90   return 0 ;
  91 }
  92