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, float allowable);
31
32 int
main(void)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 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
79 static int
check_output(const float * data_in,unsigned len,float allowable)80 check_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