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GNU/Linux |
CentOS 5.3 |
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SDL_CD(3) |
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SDL_CD− CDROM Drive Information
typedef struct{
int id;
CDstatus status;
int numtracks;
int cur_track;
int cur_frame;
SDL_CDtrack track[SDL_MAX_TRACKS+1];
} SDL_CD;
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id |
Private drive identifier |
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status |
Drive status |
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numtracks |
Number of tracks on the CD |
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cur_track |
Current track |
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cur_frame |
Current frame offset within the track |
track[SDL_MAX_TRACKS+1]
Array of track descriptions. (see SDL_CDtrack)
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.
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);
SDL_CDOpen, SDL_CDtrack
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SDL_CD(3) | |