.TH "SDL_CD" "3" "Tue 11 Sep 2001, 22:58" "SDL" "SDL API Reference" 

.SH "NAME"

SDL_CD \- CDROM Drive Information

.SH "STRUCTURE DEFINITION"

.PP

.nf

\f(CWtypedef struct{

  int id;

  CDstatus status;

  int numtracks;

  int cur_track;

  int cur_frame;

  SDL_CDtrack track[SDL_MAX_TRACKS+1];

} SDL_CD;\fR

.fi

.PP

.SH "STRUCTURE DATA"

.TP 20

\fBid\fR

Private drive identifier

.TP 20

\fBstatus\fR

Drive \fIstatus\fR

.TP 20

\fBnumtracks\fR

Number of tracks on the CD

.TP 20

\fBcur_track\fR

Current track

.TP 20

\fBcur_frame\fR

Current frame offset within the track

.TP 20

\fBtrack\fR[SDL_MAX_TRACKS+1]

Array of track descriptions\&. (see \fI\fBSDL_CDtrack\fR\fR)

.SH "DESCRIPTION"

.PP

An \fBSDL_CD\fR structure is returned by \fI\fBSDL_CDOpen\fP\fR\&. It represents an opened CDROM device and stores information on the layout of the tracks on the disc\&.

.PP

A frame is the base data unit of a CD\&. \fBCD_FPS\fP frames is equal to 1 second of music\&. SDL provides two macros for converting between time and frames: \fBFRAMES_TO_MSF(f, M,S,F)\fP and \fBMSF_TO_FRAMES\fP\&.

.SH "EXAMPLES"

.PP

.nf

\f(CWint 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);\fR

.fi

.PP

.SH "SEE ALSO"

.PP

\fI\fBSDL_CDOpen\fP\fR, \fI\fBSDL_CDtrack\fR\fR

...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:58