cannam@86: /********************************************************************
cannam@86:  *                                                                  *
cannam@86:  * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
cannam@86:  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
cannam@86:  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
cannam@86:  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
cannam@86:  *                                                                  *
cannam@86:  * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007             *
cannam@86:  * by the Xiph.Org Foundation http://www.xiph.org/                  *
cannam@86:  *                                                                  *
cannam@86:  ********************************************************************
cannam@86: 
cannam@86:  function: vorbis coded test suite using vorbisfile
cannam@86:  last mod: $Id: test.c 13293 2007-07-24 00:09:47Z erikd $
cannam@86: 
cannam@86:  ********************************************************************/
cannam@86: 
cannam@86: #include <stdio.h>
cannam@86: #include <stdlib.h>
cannam@86: #include <math.h>
cannam@86: 
cannam@86: #include "util.h"
cannam@86: #include "write_read.h"
cannam@86: 
cannam@86: #define DATA_LEN        2048
cannam@86: 
cannam@86: #define MAX(a,b)        ((a) > (b) ? (a) : (b))
cannam@86: 
cannam@86: 
cannam@86: static int check_output (const float * data_in, unsigned len, float allowable);
cannam@86: 
cannam@86: int
cannam@86: main(void){
cannam@86:   static float data_out [DATA_LEN] ;
cannam@86:   static float data_in [DATA_LEN] ;
cannam@86: 
cannam@86:   /* Do safest and most used sample rates first. */
cannam@86:   int sample_rates [] = { 44100, 48000, 32000, 22050, 16000, 96000 } ;
cannam@86:   unsigned k ;
cannam@86:   int errors = 0 ;
cannam@86:   int ch;
cannam@86: 
cannam@86:   gen_windowed_sine (data_out, ARRAY_LEN (data_out), 0.95);
cannam@86: 
cannam@86:   for(ch=1;ch<=8;ch++){
cannam@86:     float q=-.05;
cannam@86:     printf("\nTesting %d channel%s\n\n",ch,ch==1?"":"s");
cannam@86:     while(q<1.){
cannam@86:       for (k = 0 ; k < ARRAY_LEN (sample_rates); k ++) {
cannam@86:         char filename [64] ;
cannam@86:         snprintf (filename, sizeof (filename), "vorbis_%dch_q%.1f_%u.ogg", ch,q*10,sample_rates [k]);
cannam@86: 
cannam@86:         printf ("    %-20s : ", filename);
cannam@86:         fflush (stdout);
cannam@86: 
cannam@86:         /* Set to know value. */
cannam@86:         set_data_in (data_in, ARRAY_LEN (data_in), 3.141);
cannam@86: 
cannam@86:         write_vorbis_data_or_die (filename, sample_rates [k], q, data_out, ARRAY_LEN (data_out),ch);
cannam@86:         read_vorbis_data_or_die (filename, sample_rates [k], data_in, ARRAY_LEN (data_in));
cannam@86: 
cannam@86:         if (check_output (data_in, ARRAY_LEN (data_in), (.15f - .1f*q)) != 0)
cannam@86:           errors ++ ;
cannam@86:         else {
cannam@86:           puts ("ok");
cannam@86:           remove (filename);
cannam@86:         }
cannam@86:       }
cannam@86:       q+=.1;
cannam@86:     }
cannam@86:   }
cannam@86: 
cannam@86:   if (errors)
cannam@86:     exit (1);
cannam@86: 
cannam@86:   return 0;
cannam@86: }
cannam@86: 
cannam@86: static int
cannam@86: check_output (const float * data_in, unsigned len, float allowable)
cannam@86: {
cannam@86:   float max_abs = 0.0 ;
cannam@86:   unsigned k ;
cannam@86: 
cannam@86:   for (k = 0 ; k < len ; k++) {
cannam@86:     float temp = fabs (data_in [k]);
cannam@86:     max_abs = MAX (max_abs, temp);
cannam@86:   }
cannam@86: 
cannam@86:   if (max_abs < 0.95-allowable) {
cannam@86:     printf ("Error : max_abs (%f) too small.\n", max_abs);
cannam@86:     return 1 ;
cannam@86:   } else if (max_abs > .95+allowable) {
cannam@86:     printf ("Error : max_abs (%f) too big.\n", max_abs);
cannam@86:     return 1 ;
cannam@86:   }
cannam@86: 
cannam@86:   return 0 ;
cannam@86: }
cannam@86: