I am having a problem with sample instances.
I tried to play the sample instance by using this code.
1al_install_audio();
2al_init_acodec_addon();
3
4ALLEGRO_SAMPLE *music=al_load_sample("song.ogg");
5ALLEGRO_SAMPLE_INSTANCE *song=al_create_sample_instance(music);
6al_set_sample_instance_playmode(song,ALLEGRO_PLAYMODE_LOOP);
7al_attach_sample_instance_to_mixer(song,al_get_default_mixer());
8
9al_reserve_samples(1);
10
11al_play_sample_instance(song);
The program will start up fine but then an error message saying allegro audio test.exe has stopped working.
I then ran it in debug mode and found out that al_get_default_mixer() was causing the program to crash.
Then I tried to make a mixer with this code.
1al_install_audio();
2al_init_acodec_addon();
3
4ALLEGRO_SAMPLE *music=al_load_sample("song.ogg");
5ALLEGRO_SAMPLE_INSTANCE *song=al_create_sample_instance(music);
6al_set_sample_instance_playmode(song,ALLEGRO_PLAYMODE_LOOP);
7ALLEGRO_MIXER *mixer=al_create_mixer(44100,ALLEGRO_AUDIO_DEPTH_FLOAT32
8 ,ALLEGRO_CHANNEL_CONF_2);
9al_attach_sample_instance_to_mixer(song,mixer);
10
11al_reserve_samples(1);
12
13al_play_sample_instance(song);
When I ran this code It did not crash but the song was not played.
With that said what did I do wrong with this code? 
