SDL_CD

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 (see SDL_CDStatus)

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\n", min, sec, frame);

frame_offset=MSF_TO_FRAMES(min, sec, frame);

See Also

SDL_CDOpen, SDL_CDtrack

SDL_CD (last edited 2008-04-17 08:18:10 by localhost)