Module Sdlcdrom

module Sdlcdrom: sig .. end

This module provides CD-ROM handling

exception SDLcdrom_exception of string

Exception used to report errors

exception Trayempty

Exception to report that thre's no cd in the drive

Types

type cdrom_drive

abstract type for handling cdrom

type cdrom_drive_status =

`\|`	`CD_TRAYEMPTY`	`(*`	cdrom drive is empty	`*)`
`\|`	`CD_STOPPED`	`(*`	cdrom drive is stopped	`*)`
`\|`	`CD_PLAYING`	`(*`	cdrom drive is playing	`*)`
`\|`	`CD_PAUSED`	`(*`	cdrom drive is paused	`*)`

enumeration of different status cdrom drive

type track_type =

`\|`	`TRACK_AUDIO`	`(*`	audio track type	`*)`
`\|`	`TRACK_DATA`	`(*`	data track type	`*)`

the types of CD-ROM track possible

type track = {

	`id : int;`
	`kind : track_type;`
	`length : int;`
	`offset : int;`

}
type cdrom_info = {

	`num_tracks : int;`
	`curr_track : int;`
	`curr_frame : int;`
	`tracks : track array;`

}

General API

An SDLcdrom_exception is raised on errors

val get_num_drives : unit -> int

get_num_drives returns the number of CD-ROM drives on the system

val drive_name : int -> string

drive_name drive returns a human-readable, system-dependent identifier for the CD-ROM. drive is the index of the drive. Drive indices start to 0 and end at get_num_drives()-1.

CD-ROM drive handling

val cd_open : int -> cdrom_drive

cd_open drive open a CD-ROM drive for access

val cd_close : cdrom_drive -> unit

Closes the handle for the cdrom_drive

val cd_status : cdrom_drive -> cdrom_drive_status

Returns the current status of the given drive.

val cd_info : cdrom_drive -> cdrom_info

Raises Trayempty if there's no cd in the drive
Returns the table of contents of the CD and current play position

Playing audio tracks

val msf_of_frames : int -> int * int * int

val frames_of_msf : int * int * int -> int

val cd_play_tracks : cdrom_drive ->
       start_track:int ->
       start_frame:int -> num_tracks:int -> num_frames:int -> unit

cd_play_tracks cdrom_drive start_track start_frame num_tracks num_frames play the given CD with these parameters
Raises Trayempty if there's no cd in the drive

start_track : the starting track

start_frame : the starting frame

num_tracks : the number of tracks to play

num_frames : the number of frames to play

val cd_play_track : cdrom_drive -> track -> unit

Play the track n on the given cdrom_drive

val cd_pause : cdrom_drive -> unit

Pause play

val cd_resume : cdrom_drive -> unit

Resume play

val cd_stop : cdrom_drive -> unit

Stop play

val cd_eject : cdrom_drive -> unit

Eject CD-ROM