SDL_CD

SDL Library Documentation
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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\n", min, sec, frame);

frame_offset=MSF_TO_FRAMES(min, sec, frame);

SDL Library