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[vlc] / include / vlc_epg.h
1 /*****************************************************************************
2  * vlc_epg.h: Electronic Program Guide
3  *****************************************************************************
4  * Copyright (C) 2007 the VideoLAN team
5  * $Id$
6  *
7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22  *****************************************************************************/
23
24 #if !defined( __LIBVLC__ )
25   #error You are not libvlc or one of its plugins. You cannot include this file
26 #endif
27
28 #ifndef _VLC_EPG_H
29 #define _VLC_EPG_H 1
30
31 typedef struct
32 {
33     int64_t i_start;    /* Interpreted as a value return by time() */
34     int     i_duration;    /* Duration of the event in second */
35
36     char    *psz_name;
37     char    *psz_short_description;
38     char    *psz_description;
39
40 } vlc_epg_event_t;
41
42 typedef struct
43 {
44     char            *psz_name;
45     vlc_epg_event_t *p_current; /* Can be null or should be the same than one of pp_event entry */
46
47     int             i_event;
48     vlc_epg_event_t **pp_event;
49 } vlc_epg_t;
50
51 static inline void vlc_epg_Init( vlc_epg_t *p_epg, const char *psz_name )
52 {
53     p_epg->psz_name = psz_name ? strdup( psz_name ) : NULL;
54     p_epg->p_current = NULL;
55     TAB_INIT( p_epg->i_event, p_epg->pp_event );
56 }
57 static inline void vlc_epg_Clean( vlc_epg_t *p_epg )
58 {
59     int i;
60     for( i = 0; i < p_epg->i_event; i++ )
61     {
62         vlc_epg_event_t *p_evt = p_epg->pp_event[i];
63         if( p_evt->psz_name )
64             free( p_evt->psz_name );
65         if( p_evt->psz_short_description )
66             free( p_evt->psz_short_description );
67         if( p_evt->psz_description )
68             free( p_evt->psz_description );
69         free( p_evt );
70     }
71     TAB_CLEAN( p_epg->i_event, p_epg->pp_event );
72     if( p_epg->psz_name )
73         free( p_epg->psz_name );
74 }
75 static inline void vlc_epg_AddEvent( vlc_epg_t *p_epg, int64_t i_start, int i_duration,
76                                 const char *psz_name, const char *psz_short_description, const char *psz_description )
77 {
78     vlc_epg_event_t *p_evt = (vlc_epg_event_t*)malloc( sizeof(vlc_epg_event_t) );
79     if( !p_evt )
80         return;
81     p_evt->i_start = i_start;
82     p_evt->i_duration = i_duration;
83     p_evt->psz_name = psz_name ? strdup( psz_name ) : NULL;
84     p_evt->psz_short_description = psz_short_description ? strdup( psz_short_description ) : NULL;
85     p_evt->psz_description = psz_description ? strdup( psz_description ) : NULL;
86     TAB_APPEND_CPP( vlc_epg_event_t, p_epg->i_event, p_epg->pp_event, p_evt );
87 }
88
89 static inline vlc_epg_t *vlc_epg_New( const char *psz_name )
90 {
91     vlc_epg_t *p_epg = (vlc_epg_t*)malloc( sizeof(vlc_epg_t) );
92     if( p_epg )
93         vlc_epg_Init( p_epg, psz_name );
94     return p_epg;
95 }
96 static inline void vlc_epg_Delete( vlc_epg_t *p_epg )
97 {
98     vlc_epg_Clean( p_epg );
99     free( p_epg );
100 }
101 static inline void vlc_epg_SetCurrent( vlc_epg_t *p_epg, int64_t i_start )
102 {
103     int i;
104     p_epg->p_current = NULL;
105     if( i_start < 0 )
106         return;
107
108     for( i = 0; i < p_epg->i_event; i++ )
109     {
110         if( p_epg->pp_event[i]->i_start == i_start )
111         {
112             p_epg->p_current = p_epg->pp_event[i];
113             break;
114         }
115     }
116 }
117
118 #endif
119