[Allegro 5] Obsługa video w allegro 5

void splash_screen( void )
{
    ALLEGRO_VIDEO * splash_vid = al_open_video( "vid.ogv" );
    ALLEGRO_MIXER * mixer = al_create_mixer( 44100, ALLEGRO_AUDIO_DEPTH_FLOAT32, ALLEGRO_CHANNEL_CONF_2 );
   
    al_set_new_bitmap_flags( ALLEGRO_VIDEO_BITMAP );
    ALLEGRO_BITMAP * bitmap;
   
    std::cout << al_is_video_playing( splash_vid );
   
    ALLEGRO_EVENT_QUEUE * vid_event_queue = al_create_event_queue();
   
    al_register_event_source( vid_event_queue, al_get_video_event_source( splash_vid ) );
   
    al_start_video( splash_vid, mixer );
   
    bool done = false;
    while( !done )
    {
        ALLEGRO_EVENT vid_ev;
        al_wait_for_event( vid_event_queue, & vid_ev );
        if( vid_ev.type == ALLEGRO_EVENT_VIDEO_FRAME_SHOW )
        {
            bitmap = al_get_video_frame( splash_vid );
            al_set_target_backbuffer( display );
            al_draw_bitmap( bitmap, 0, 0, 0 );
            al_flip_display();
            std::cout << __LINE__ << ' ' << __FILE__ << std::endl;
            al_clear_to_color( al_map_rgb( 0, 0, 0 ) );
        }
        else if( vid_ev.type == ALLEGRO_EVENT_VIDEO_FINISHED )
        {
            done = true;
            break;
        }
        std::cout << __LINE__ << ' ' << __FILE__ << std::endl;
    }
   
    al_destroy_event_queue( vid_event_queue );
    al_close_video( splash_vid );
    al_destroy_mixer( mixer );
}