al_get_sample
ALLEGRO_SAMPLE *al_get_sample(ALLEGRO_SAMPLE_INSTANCE *spl)
Return the sample data that the sample instance plays.
Note this returns a pointer to an internal structure, not the ALLEGRO_SAMPLE that you may have passed to al_set_sample. You may, however, check which sample buffer is being played by the sample instance with al_get_sample_data, and so on.