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/********************************************************************
* *
* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
* *
* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
* by the Xiph.Org Foundation http://www.xiph.org/ *
* *
********************************************************************
function: vorbis coded test suite using vorbisfile
********************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "util.h"
#include "write_read.h"
#define DATA_LEN 2048
#define MAX(a,b) ((a) > (b) ? (a) : (b))
static int check_output (const float * data_in, unsigned len, float allowable);
int
main(void){
static float data_out [DATA_LEN] ;
static float data_in [DATA_LEN] ;
/* Do safest and most used sample rates first. */
int sample_rates [] = { 44100, 48000, 32000, 22050, 16000, 96000 } ;
unsigned k ;
int errors = 0 ;
int ch;
gen_windowed_sine (data_out, ARRAY_LEN (data_out), 0.95);
for(ch=1;ch<=8;ch++){
float q=-.05;
printf("\nTesting %d channel%s\n\n",ch,ch==1?"":"s");
while(q<1.){
for (k = 0 ; k < ARRAY_LEN (sample_rates); k ++) {
char filename [64] ;
snprintf (filename, sizeof (filename), "vorbis_%dch_q%.1f_%u.ogg", ch,q*10,sample_rates [k]);
printf (" %-20s : ", filename);
fflush (stdout);
/* Set to know value. */
set_data_in (data_in, ARRAY_LEN (data_in), 3.141);
write_vorbis_data_or_die (filename, sample_rates [k], q, data_out, ARRAY_LEN (data_out),ch);
read_vorbis_data_or_die (filename, sample_rates [k], data_in, ARRAY_LEN (data_in));
if (check_output (data_in, ARRAY_LEN (data_in), (.15f - .1f*q)) != 0)
errors ++ ;
else {
puts ("ok");
remove (filename);
}
}
q+=.1;
}
}
if (errors)
exit (1);
return 0;
}
static int
check_output (const float * data_in, unsigned len, float allowable)
{
float max_abs = 0.0 ;
unsigned k ;
for (k = 0 ; k < len ; k++) {
float temp = fabs (data_in [k]);
max_abs = MAX (max_abs, temp);
}
if (max_abs < 0.95-allowable) {
printf ("Error : max_abs (%f) too small.\n", max_abs);
return 1 ;
} else if (max_abs > .95+allowable) {
printf ("Error : max_abs (%f) too big.\n", max_abs);
return 1 ;
}
return 0 ;
}
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