al_get_available_audio_stream_fragments - Man Page

#include <allegro5/allegro_audio.h>

unsigned int al_get_available_audio_stream_fragments(
   const ALLEGRO_AUDIO_STREAM *stream)

Returns the number of available fragments in the stream, that is, fragments which are not currently filled with data for playback.

al_get_audio_stream_fragment(3), al_get_audio_stream_fragments(3)

al_get_audio_stream_fragments(3), ALLEGRO_AUDIO_STREAM(3).