TSDL_CD

Structure Definition

  TSDL_CD = record
    id : Integer;           // Private drive identifier
    status : TSDL_CDStatus; // Current drive status
    numtracks : Integer;    // Number of tracks on disk
    cur_track : Integer;    // Current track position
    cur_frame : Integer;    // Current frame offset within current track
    track : array[0..SDL_MAX_TRACKS] of TSDL_CDTrack;
  end;

Structure Data

Description

An TSDL_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

min, sec, frame : integer;
frame_offset : integer;

FRAMES_TO_MSF( cdrom.cur_frame, min, sec, frame );
WriteLn( Format( 'Current Position: %d minutes, %d seconds, %d frames', [ min, sec, frame ] ) );

frame_offset := MSF_TO_FRAMES( min, sec, frame );

See Also

SDL_CDOpen, TSDL_CDtrack