| .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 |
