test/libvlc/equalizer.c

   1 /*
   2  * equalizer.c - libvlc smoke test
   3  */
   4
   5 #include <string.h>
   6 #include <math.h>
   7
   8 #include "test.h"
   9
  10 static void test_equalizer (const char ** argv, int argc)
  11 {
  12     libvlc_instance_t *vlc;
  13     libvlc_media_player_t *mp;
  14     libvlc_equalizer_t *equalizer;
  15     unsigned u_presets, u_bands;
  16
  17     log ("Testing equalizer\n");
  18
  19     vlc = libvlc_new (argc, argv);
  20     assert (NULL != vlc);
  21
  22     mp = libvlc_media_player_new (vlc);
  23     assert (NULL != mp);
  24
  25     // presets
  26
  27     log ("Testing equalizer presets\n");
  28
  29     u_presets = libvlc_audio_equalizer_get_preset_count();
  30     assert (u_presets > 0);
  31
  32     for (unsigned i = 0; i < u_presets; i++)
  33     {
  34         assert (NULL != libvlc_audio_equalizer_get_preset_name(i));
  35
  36         equalizer = libvlc_audio_equalizer_new_from_preset(i);
  37         assert (equalizer);
  38
  39         libvlc_audio_equalizer_release(equalizer);
  40     }
  41
  42     // preset out of range
  43
  44     assert (NULL == libvlc_audio_equalizer_get_preset_name(u_presets));
  45     assert (NULL == libvlc_audio_equalizer_new_from_preset(u_presets));
  46
  47     // bands
  48
  49     log ("Testing equalizer bands\n");
  50
  51     u_bands = libvlc_audio_equalizer_get_band_count();
  52     assert (u_bands > 0);
  53
  54     for (unsigned i = 0; i < u_bands; i++)
  55         assert (-1.0f != libvlc_audio_equalizer_get_band_frequency(i));
  56
  57     // band out of range
  58
  59     assert (-1.0f == libvlc_audio_equalizer_get_band_frequency(u_bands));
  60
  61     // initialisation
  62
  63     log ("Testing equalizer initialisation\n");
  64
  65     equalizer = libvlc_audio_equalizer_new();
  66     assert (equalizer);
  67
  68     assert (libvlc_audio_equalizer_get_preamp(equalizer) == 0.0f);
  69
  70     for (unsigned i = 0; i < u_bands; i++)
  71         assert (libvlc_audio_equalizer_get_amp_at_index(equalizer, i) == 0.0f);
  72
  73     // preamp (range -20.0 to 20.0)
  74
  75     log ("Testing equalizer preamp\n");
  76
  77     assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, 19.9f));
  78     assert (libvlc_audio_equalizer_get_preamp(equalizer) == 19.9f);
  79
  80     assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, 20.0f));
  81     assert (libvlc_audio_equalizer_get_preamp(equalizer) == 20.0f);
  82
  83     assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, 20.1f));
  84     assert (libvlc_audio_equalizer_get_preamp(equalizer) == 20.0f);
  85
  86     assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, -19.9f));
  87     assert (libvlc_audio_equalizer_get_preamp(equalizer) == -19.9f);
  88
  89     assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, -20.0f));
  90     assert (libvlc_audio_equalizer_get_preamp(equalizer) == -20.0f);
  91
  92     assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, -20.1f));
  93     assert (libvlc_audio_equalizer_get_preamp(equalizer) == -20.0f);
  94
  95     // amp at index (range -20.0 to 20.0)
  96
  97     log ("Testing equalizer amp at index\n");
  98
  99     for (unsigned i = 0; i < u_bands; i++)
 100     {
 101         assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, 19.9f, i));
 102         assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == 19.9f);
 103
 104         assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, 20.0f, i));
 105         assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == 20.0f);
 106
 107         assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, 20.1f, i));
 108         assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == 20.0f);
 109
 110         assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, -19.9f, i));
 111         assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == -19.9f);
 112
 113         assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, -20.0f, i));
 114         assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == -20.0f);
 115
 116         assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, -20.1f, i));
 117         assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == -20.0f);
 118     }
 119
 120     // amp at index out of range
 121
 122     assert (isnan(libvlc_audio_equalizer_get_amp_at_index (equalizer, u_bands)));
 123     assert (-1 == libvlc_audio_equalizer_set_amp_at_index (equalizer, 19.9f, u_bands));
 124
 125     // no equalizer
 126
 127     log ("Testing release NULL\n");
 128
 129     libvlc_audio_equalizer_release (NULL);
 130
 131     // media player
 132
 133     log ("Testing set equalizer\n");
 134
 135     assert (0 == libvlc_media_player_set_equalizer(mp, NULL));
 136     assert (0 == libvlc_media_player_set_equalizer(mp, equalizer));
 137
 138     // maximum string length (test string concatenation)
 139
 140     log ("Testing equalizer-bands string limit\n");
 141
 142     for (unsigned i = 0; i < u_bands; i++)
 143         assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, -19.1234567f, i));
 144
 145     assert (0 == libvlc_media_player_set_equalizer(mp, equalizer));
 146
 147     // cleanup
 148
 149     log ("Testing equalizer cleanup\n");
 150
 151     libvlc_audio_equalizer_release (equalizer);
 152
 153     log ("Finished testing equalizer\n");
 154
 155     libvlc_media_player_release (mp);
 156
 157     libvlc_release (vlc);
 158 }
 159
 160 int main (void)
 161 {
 162     test_init();
 163
 164     test_equalizer (test_defaults_args, test_defaults_nargs);
 165
 166     return 0;
 167 }