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