SDL::CD(3) SDL Bindings for structure SDL_CD

CATEGORY

Core, CDROM, Structure

SYNOPSIS


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)
{
...
}

}

CONSTANTS

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

METHOD

new

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

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

status

 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

play_tracks

 $CD->play_tracks($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.

play

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

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

Returns 0 on success, "-1" on error

pause

 $CD->pause();

Pauses play on CD

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

resume

 $CD->resume();

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

stop

 $CD->stop();

Stops play on the CD.

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

eject

 $CD->eject();

Ejects the CD.

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

id

 $CD->id();

Private drive identifier

num_tracks

 $CD->num_tracks();

Number of tracks on the CD

cur_track

 $CD->cur_track();

Current track on the CD;

track

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

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

FRAMES_TO_MSF

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

Conversion functions from frames to Minute/Second/Frames

MSF_TO_FRAMES

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

AUTHORS

See ``AUTHORS'' in SDL.

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