comparison src/libvorbis-1.3.3/test/test.c @ 1:05aa0afa9217

Bring in flac, ogg, vorbis

+/********************************************************************
+ *                                                                  *
+ * 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
+ last mod: $Id: test.c 13293 2007-07-24 00:09:47Z erikd $
+
+ ********************************************************************/
+
+#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 ;
+}
+