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/*
* $Id: cdrom.h,v 1.9 1997/10/30 11:24:51 ograf Exp $
*
* Copyright (c) 1997 by Oliver Graf <ograf@fga.de>
*/
#ifndef _MY_CDROM_H
#define _MY_CDROM_H
/* cd status modes */
#define CDM_CLOSED -1
#define CDM_COMP 0
#define CDM_PLAY 1
#define CDM_PAUSE 2
#define CDM_STOP 3
#define CDM_EJECT CDM_CLOSED
/* cd actions */
#define CDA_NONE 0
#define CDA_STOP 1
#define CDA_PLAY 2
#define CDA_PAUSE 3
/* repeatmode */
#define CDR_NONE 0
#define CDR_ONE 1
#define CDR_ALL 2
/* playtype */
#define CDP_NORMAL 0
#define CDP_RANDOM 1
typedef struct {
int minute;
int second;
int frame;
} MSF;
#define FRAMES 75
#define SECONDS 60
#define fSecs(f) (int)(f/FRAMES)
#define fMins(f) (int)(f/FRAMES/SECONDS)
#define msfFrames(msf) (((msf.minute*SECONDS)+msf.second)*FRAMES+msf.frame)
#define msfSecs(msf) (((msf.minute*SECONDS)+msf.second)
#define MSFnone(msf) msf.minute=msf.second=msf.frame=-1
#define MSFzero(msf) msf.minute=msf.second=msf.frame=0
typedef struct {
int num;
MSF start; /* real start */
MSF end; /* start of the next track == end */
MSF length; /* length of the track in MSF */
int data; /* datatrack? */
} TrackInfo;
typedef struct {
int mode;
int track;
MSF relmsf;
MSF absmsf;
} CDPosition;
typedef struct { /* stores information about the last play action */
int last_action; /* last action, needed for auto-play-next-in-list */
int cur_track; /* this is the automatical up-counted track within the list */
int cur_end; /* this is the calculated end of an uninterupted sequence */
int repeat_mode; /* repeat some or all or none */
int play_type; /* normal or random */
} CDPlayInfo;
typedef struct { /* stores a array of tracks to play */
MSF length; /* length of the play list */
int allocated; /* tracks allacated in track entry */
int tracks; /* number of tracks in the play list */
TrackInfo *track; /* the tracks */
} CDPlayList;
typedef struct {
CDPosition current;
CDPlayInfo play;
CDPlayList list; /* is initialized with all non-data tracks */
unsigned long discid;
int start; /* first track of the cd */
int end; /* last track of the cd */
int tracks; /* number of tracks (end-start)+1 */
TrackInfo *track;
} CDInfo;
typedef struct {
int fd;
char *device;
int status; /* this keeps the return value of cd_getStatus() */
CDInfo info; /* only one cd per device, anything else is stupid */
} CD;
CD *cd_open(char *device, int noopen);
int cd_reopen(CD *cd);
int cd_suspend(CD *cd);
void cd_close(CD *cd);
void cd_freeinfo(CD *cd);
int cd_getStatus(CD *cd, int reopen, int force);
/*
* all cd_do* commands assume that prior to their call a cd_getStatus
* is done to update the CDPosition struct of the cd
*/
int cd_playMSF(CD *cd, MSF start, MSF end);
int cd_doPlay(CD *cd, int start);
int cd_doSkip(CD *cd, int secs);
int cd_doPause(CD *cd);
int cd_doStop(CD *cd);
int cd_doEject(CD *cd);
int cmpMSF(MSF a, MSF b);
MSF subMSF(MSF a, MSF b);
MSF addMSF(MSF a, MSF b);
MSF normMSF(MSF msf);
/*
* play list functions
*
* first the CD internal stuff
*/
int cd_resetpl(CD *cd);
int cd_findtrack(CD *cd, int num);
int cd_randomize(CD *cd);
int cd_setpl(CD *cd, CDPlayList *list);
/*
* now extra play lists
*/
CDPlayList *cdpl_new();
int cdpl_free(CDPlayList *list);
int cdpl_add(CDPlayList *list, CD *cd, int track);
int cdpl_reset(CDPlayList *list);
#define cd_info(c,w) (c->info.##w)
#define cd_cur(c,w) (c->info.current.##w)
#define cd_play(c,w) (c->info.play.##w)
#define cd_list(c,w) (c->info.list.##w)
#endif
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