test.c revision 8e01cdce135d5d816f92d7bb83f9a930aa1b45ae 
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
30static int check_output (const float * data_in, unsigned len, float allowable);
31
32int
33main(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  int ch;
42
43  gen_windowed_sine (data_out, ARRAY_LEN (data_out), 0.95);
44
45  for(ch=1;ch<=8;ch++){
46    float q=-.05;
47    printf("\nTesting %d channel%s\n\n",ch,ch==1?"":"s");
48    while(q<1.){
49      for (k = 0 ; k < ARRAY_LEN (sample_rates); k ++) {
50        char filename [64] ;
51        snprintf (filename, sizeof (filename), "vorbis_%dch_q%.1f_%u.ogg", ch,q*10,sample_rates [k]);
52
53        printf ("    %-20s : ", filename);
54        fflush (stdout);
55
56        /* Set to know value. */
57        set_data_in (data_in, ARRAY_LEN (data_in), 3.141);
58
59        write_vorbis_data_or_die (filename, sample_rates [k], q, data_out, ARRAY_LEN (data_out),ch);
60        read_vorbis_data_or_die (filename, sample_rates [k], data_in, ARRAY_LEN (data_in));
61
62        if (check_output (data_in, ARRAY_LEN (data_in), (.15f - .1f*q)) != 0)
63          errors ++ ;
64        else {
65          puts ("ok");
66          remove (filename);
67        }
68      }
69      q+=.1;
70    }
71  }
72
73  if (errors)
74    exit (1);
75
76  return 0;
77}
78
79static int
80check_output (const float * data_in, unsigned len, float allowable)
81{
82  float max_abs = 0.0 ;
83  unsigned k ;
84
85  for (k = 0 ; k < len ; k++) {
86    float temp = fabs (data_in [k]);
87    max_abs = MAX (max_abs, temp);
88  }
89
90  if (max_abs < 0.95-allowable) {
91    printf ("Error : max_abs (%f) too small.\n", max_abs);
92    return 1 ;
93  } else if (max_abs > .95+allowable) {
94    printf ("Error : max_abs (%f) too big.\n", max_abs);
95    return 1 ;
96  }
97
98  return 0 ;
99}
100
101