SDL_CD(3) SDL API Reference SDL_CD(3)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
SDL Tue 11 Sep 2001, 22:58 SDL_CD(3)
Check Out this Related Man Page
SDL_CDOpen(3) SDL API Reference SDL_CDOpen(3)NAME
SDL_CDOpen - Opens a CD-ROM drive for access.
SYNOPSIS
#include "SDL.h"
SDL_CD *SDL_CDOpen(int drive);
DESCRIPTION
Opens a CD-ROM drive for access. It returns a SDL_CD structure on success, or NULL if the drive was invalid or busy. This newly opened CD-
ROM becomes the default CD used when other CD functions are passed a NULL CD-ROM handle.
Drives are numbered starting with 0. Drive 0 is the system default CD-ROM.
EXAMPLES
SDL_CD *cdrom;
int cur_track;
int min, sec, frame;
SDL_Init(SDL_INIT_CDROM);
atexit(SDL_Quit);
/* Check for CD drives */
if(!SDL_CDNumDrives()){
/* None found */
fprintf(stderr, "No CDROM devices available
");
exit(-1);
}
/* Open the default drive */
cdrom=SDL_CDOpen(0);
/* Did if open? Check if cdrom is NULL */
if(!cdrom){
fprintf(stderr, "Couldn't open drive: %s
", SDL_GetError());
exit(-1);
}
/* Print Volume info */
printf("Name: %s
", SDL_CDName(0));
printf("Tracks: %d
", cdrom->numtracks);
for(cur_track=0;cur_track < cdrom->numtracks; cur_track++){
FRAMES_TO_MSF(cdrom->track[cur_track].length, &min, &sec, &frame);
printf(" Track %d: Length %d:%d
", cur_track, min, sec);
}
SDL_CDClose(cdrom);
SEE ALSO
SDL_CD, SDL_CDtrack, SDL_CDClose
SDL Tue 11 Sep 2001, 22:58 SDL_CDOpen(3)
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