Provided by: allegro5-doc_5.0.10-2_all bug


       al_get_audio_stream_fragment - Allegro 5 API


              #include <allegro5/allegro_audio.h>

              void *al_get_audio_stream_fragment(const ALLEGRO_AUDIO_STREAM *stream)


       When  using  Allegro's audio streaming, you will use this function to continuously provide
       new sample data to a stream.

       If the stream is ready for new data, the function will return the address of  an  internal
       buffer  to  be  filled with audio data.  The length and format of the buffer are specified
       with  al_create_audio_stream(3alleg5)  or  can  be  queried  with  the  various  functions
       described here.  Once the buffer is filled, you must signal this to Allegro by passing the
       buffer to al_set_audio_stream_fragment(3alleg5).

       If the stream is not ready for new data, the function will return NULL.

              Note:    If    you     listen     to     events     from     the     stream,     an
              ALLEGRO_EVENT_AUDIO_STREAM_FRAGMENT event will be generated whenever a new fragment
              is   ready.    However,   getting   an   event   is   not    a    guarantee    that
              al_get_audio_stream_fragment(3alleg5) will not return NULL, so you still must check
              for it.


       al_set_audio_stream_fragment(3alleg5),          al_get_audio_stream_event_source(3alleg5),
       al_get_audio_stream_frequency(3alleg5),             al_get_audio_stream_channels(3alleg5),
       al_get_audio_stream_depth(3alleg5), al_get_audio_stream_length(3alleg5)