SDL_CD

Langue: en

Autres versions - même langue

Version: 121881 (mandriva - 01/05/08)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

SDL_CD - CDROM Drive Information

STRUCTURE DEFINITION

 typedef struct{
   int id;
   CDstatus status;
   int numtracks;
   int cur_track;
   int cur_frame;
   SDL_CDtrack track[SDL_MAX_TRACKS+1];
 } SDL_CD;

STRUCTURE DATA

id
Private drive identifier
status
Drive status
numtracks
Number of tracks on the CD
cur_track
Current track
cur_frame
Current frame offset within the track
track[SDL_MAX_TRACKS+1]
Array of track descriptions. (see SDL_CDtrack)

DESCRIPTION

An SDL_CD structure is returned by SDL_CDOpen. It represents an opened CDROM device and stores information on the layout of the tracks on the disc.

A frame is the base data unit of a CD. CD_FPS frames is equal to 1 second of music. SDL provides two macros for converting between time and frames: FRAMES_TO_MSF(f, M,S,F) and MSF_TO_FRAMES.

EXAMPLES

 int min, sec, frame;
 int frame_offset;
 
 FRAMES_TO_MSF(cdrom->cur_frame, &min, &sec, &frame);
 printf("Current Position: %d minutes, %d seconds, %d frames
 ", min, sec, frame);
 
 frame_offset=MSF_TO_FRAMES(min, sec, frame);

SEE ALSO

SDL_CDOpen, SDL_CDtrack