ALLEGRO_VIDEO_POSITION_TYPE - Allegro 5 API

       Used  with  al_get_video_position(3alleg5)  to  specify  which position to retrieve.  If these get out of
       sync, audio and video may be out of sync in the display of the video.

       • ALLEGRO_VIDEO_POSITION_ACTUAL - The amount of time the video has been playing.  If the video has  audio
         then this value can be ahead of ALLEGRO_VIDEO_POSITION_VIDEO_DECODE when video decoding lags.

       • ALLEGRO_VIDEO_POSITION_VIDEO_DECODE  -  The amount of video that has been decoded.  This may lag behind
         the “actual” and audio positions if decoding is slower than realtime.

       • ALLEGRO_VIDEO_POSITION_AUDIO_DECODE - The amount of audio that has been decoded.  This may be the  same
         as ALLEGRO_VIDEO_POSITION_ACTUAL if audio decode is driving the position, which is common to keep audio
         and video in sync.

       ALLEGRO_VIDEO_POSITION_TYPE - Allegro 5 API

       5.1.11

Allegro reference manual                                                    ALLEGRO_VIDEO_POSITION_TYPE(3alleg5)

              #include <allegro5/allegro_video.h>

              typedef enum ALLEGRO_VIDEO_POSITION_TYPE ALLEGRO_VIDEO_POSITION_TYPE;