libvlc: add tests for the equalizer API

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

test/Makefile.am

@@ -14,6 +14,7 @@ extra_check_verbose__0 = $(extra_check_verbose_0)
 ###############################################################################
 check_PROGRAMS = \
 	test_libvlc_core \
+	test_libvlc_equalizer \
 	test_libvlc_media \
 	test_libvlc_media_list \
 	test_libvlc_media_player \
@@ -58,6 +59,8 @@ LIBVLC = ../lib/libvlc.la
 
 test_libvlc_core_SOURCES = libvlc/core.c
 test_libvlc_core_LDADD = $(LIBVLC)
+test_libvlc_equalizer_SOURCES = libvlc/equalizer.c
+test_libvlc_equalizer_LDADD = $(LIBVLC)
 test_libvlc_media_SOURCES = libvlc/media.c
 test_libvlc_media_LDADD = $(LIBVLC)
 test_libvlc_media_list_player_SOURCES = libvlc/media_list_player.c

test/libvlc/equalizer.c

+/*
+ * equalizer.c - libvlc smoke test
+ */
+
+#include <string.h>
+
+#include "test.h"
+
+static void test_equalizer (const char ** argv, int argc)
+{
+    libvlc_instance_t *vlc;
+    libvlc_media_player_t *mp;
+    libvlc_equalizer_t *equalizer;
+    unsigned u_presets, u_bands;
+
+    log ("Testing equalizer\n");
+
+    vlc = libvlc_new (argc, argv);
+    assert (NULL != vlc);
+
+    mp = libvlc_media_player_new (vlc);
+    assert (NULL != mp);
+
+    // presets
+
+    log ("Testing equalizer presets\n");
+
+    u_presets = libvlc_audio_equalizer_get_preset_count();
+    assert (u_presets > 0);
+
+    for (unsigned i = 0; i < u_presets; i++)
+    {
+        assert (NULL != libvlc_audio_equalizer_get_preset_name(i));
+
+        equalizer = libvlc_audio_equalizer_new_from_preset(i);
+        assert (equalizer);
+
+        libvlc_audio_equalizer_release(equalizer);
+    }
+
+    // preset out of range
+
+    assert (NULL == libvlc_audio_equalizer_get_preset_name(u_presets));
+    assert (NULL == libvlc_audio_equalizer_new_from_preset(u_presets));
+
+    // bands
+
+    log ("Testing equalizer bands\n");
+
+    u_bands = libvlc_audio_equalizer_get_band_count();
+    assert (u_bands > 0);
+
+    for (unsigned i = 0; i < u_bands; i++)
+        assert (-1.0f != libvlc_audio_equalizer_get_band_frequency(i));
+
+    // band out of range
+
+    assert (-1.0f == libvlc_audio_equalizer_get_band_frequency(u_bands));
+
+    // initialisation
+
+    log ("Testing equalizer initialisation\n");
+
+    equalizer = libvlc_audio_equalizer_new();
+    assert (equalizer);
+
+    assert (libvlc_audio_equalizer_get_preamp(equalizer) == 0.0f);
+
+    for (unsigned i = 0; i < u_bands; i++)
+        assert (libvlc_audio_equalizer_get_amp_at_index(equalizer, i) == 0.0f);
+
+    // preamp (range -20.0 to 20.0)
+
+    log ("Testing equalizer preamp\n");
+
+    assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, 19.9f));
+    assert (libvlc_audio_equalizer_get_preamp(equalizer) == 19.9f);
+
+    assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, 20.0f));
+    assert (libvlc_audio_equalizer_get_preamp(equalizer) == 20.0f);
+
+    assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, 20.1f));
+    assert (libvlc_audio_equalizer_get_preamp(equalizer) == 20.0f);
+
+    assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, -19.9f));
+    assert (libvlc_audio_equalizer_get_preamp(equalizer) == -19.9f);
+
+    assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, -20.0f));
+    assert (libvlc_audio_equalizer_get_preamp(equalizer) == -20.0f);
+
+    assert (0 == libvlc_audio_equalizer_set_preamp (equalizer, -20.1f));
+    assert (libvlc_audio_equalizer_get_preamp(equalizer) == -20.0f);
+
+    // amp at index (range -20.0 to 20.0)
+
+    log ("Testing equalizer amp at index\n");
+
+    for (unsigned i = 0; i < u_bands; i++)
+    {
+        assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, 19.9f, i));
+        assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == 19.9f);
+
+        assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, 20.0f, i));
+        assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == 20.0f);
+
+        assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, 20.1f, i));
+        assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == 20.0f);
+
+        assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, -19.9f, i));
+        assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == -19.9f);
+
+        assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, -20.0f, i));
+        assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == -20.0f);
+
+        assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, -20.1f, i));
+        assert (libvlc_audio_equalizer_get_amp_at_index (equalizer, i) == -20.0f);
+    }
+
+    // amp at index out of range
+
+    assert (0.0f == libvlc_audio_equalizer_get_amp_at_index (equalizer, u_bands));
+    assert (-1 == libvlc_audio_equalizer_set_amp_at_index (equalizer, 19.9f, u_bands));
+
+    // no equalizer
+
+    log ("Testing release NULL\n");
+
+    libvlc_audio_equalizer_release (NULL);
+
+    // media player
+
+    log ("Testing set equalizer\n");
+
+    assert (0 == libvlc_media_player_set_equalizer(mp, NULL));
+    assert (0 == libvlc_media_player_set_equalizer(mp, equalizer));
+
+    // maximum string length (test string concatenation)
+
+    log ("Testing equalizer-bands string limit\n");
+
+    for (unsigned i = 0; i < u_bands; i++)
+        assert (0 == libvlc_audio_equalizer_set_amp_at_index (equalizer, i, -19.1234567f));
+
+    assert (0 == libvlc_media_player_set_equalizer(mp, equalizer));
+
+    // cleanup
+
+    log ("Testing equalizer cleanup\n");
+
+    libvlc_audio_equalizer_release (equalizer);
+
+    log ("Finished testing equalizer\n");
+
+    libvlc_media_player_release (mp);
+
+    libvlc_release (vlc);
+}
+
+int main (void)
+{
+    test_init();
+
+    test_equalizer (test_defaults_args, test_defaults_nargs);
+
+    return 0;
+}