pods::SDL::CD(3pm) User Contributed Perl Documentation pods::SDL::CD(3pm)

SDL::CD -- SDL Bindings for structure SDL_CD

Core, CDROM, Structure

 use SDL;
 use SDL::CDROM;
 use SDL::CD;
 SDL::init(SDL_INIT_CDROM);
 my $drives = SDL::CDROM::num_drives;
 
 if( $drives > 0 )
 {
  my $CD = SDL::CD->new( 0 );
 
   if($CD)
   {
        ... 
   }
  
 }

The constants are exported by default. You can avoid this by doing:

 use SDL::CD ();

and access them directly:

 SDL::CD::CD_TRAYEMPTY;

or by choosing the export tags below:

Export tag: ':status'

 CD_TRAYEMPTY
 CD_STOPPED
 CD_PLAYING
 CD_PAUSED
 CD_ERROR

Export tag: ':defaults'

 CD_FPS
 SDL_MAX_TRACKS


 my $CD = SDL::CD->new($drive)

Makes a new SDL::CD object. Returns "undef" if the drive is busy or inaccessible.

 my $status = $CD->status();

Returns the current status of the CD tray

Returns on of the following constants:

  • CD_TRAYEMPTY
  • CD_STOPPED
  • CD_PLAYING
  • CD_PAUSED
  • CD_ERROR

 $CD->play_tracks($start_track, $start_frame, $ntracks, $nframes)

Plays the given SDL::CD starting at track $start_track, for $ntracks tracks.

$start_frame is the frame offset, from the beginning of the $start_track, at which to start. $nframes is the frame offset, from the beginning of the last track ($start_track+$ntracks), at which to end playing.

play_tracks() should only be called after calling "status" to get information about the CD.

Note: Data tracks are ignored.

Returns 0, or -1 if there was an error.

 $CD->play($start, $length);

Plays the given SDL::CD , starting a frame $start for $length frames.

Returns 0 on success, -1 on error

 $CD->pause();

Pauses play on CD

Returns 0 on success, or -1 on an error.

 $CD->resume();

Returns 0 on success, or -1 on an error.

 $CD->stop();

Stops play on the CD.

Returns 0 on success, or -1 on an error.

 $CD->eject();

Ejects the CD.

Returns 0 on success, or -1 on an error.

 $CD->id();

Private drive identifier

 $CD->num_tracks();

Number of tracks on the CD

 $CD->cur_track();

Current track on the CD;

 my $track =  $CD->track($number);

Retrieves track description of track $number in CD. See SDL::CDTrack.

 my ($min, $sec, $fra) = FRAMES_TO_MSF($frames);

Conversion functions from frames to Minute/Second/Frames

 my $frames = MSF_TO_FRAMES($min, $sec, $fra);

SDL::CDROM, SDL::CDTrack

See "AUTHORS" in SDL.

2024-03-31 perl v5.38.2