1 /*****************************************************************************
2 * time.c : time display video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2003-2004 VideoLAN
5 * $Id: logo.c 8721 2004-09-17 10:21:00Z gbazin $
7 * Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
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.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <stdlib.h> /* malloc(), free() */
33 #include "vlc_filter.h"
34 #include "vlc_block.h"
36 /*****************************************************************************
38 *****************************************************************************/
39 static int CreateFilter ( vlc_object_t * );
40 static void DestroyFilter( vlc_object_t * );
41 static subpicture_t *Filter( filter_t *, mtime_t );
43 /*****************************************************************************
44 * filter_sys_t: time filter descriptor
45 *****************************************************************************/
51 /*****************************************************************************
53 *****************************************************************************/
55 set_capability( "sub filter", 0 );
56 set_callbacks( CreateFilter, DestroyFilter );
57 set_description( _("Time display sub filter") );
58 add_shortcut( "time" );
61 /*****************************************************************************
62 * CreateFilter: allocates logo video filter
63 *****************************************************************************/
64 static int CreateFilter( vlc_object_t *p_this )
66 filter_t *p_filter = (filter_t *)p_this;
69 /* Allocate structure */
70 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
73 msg_Err( p_filter, "out of memory" );
78 p_filter->pf_sub_filter = Filter;
82 /*****************************************************************************
83 * DestroyFilter: destroy logo video filter
84 *****************************************************************************/
85 static void DestroyFilter( vlc_object_t *p_this )
87 filter_t *p_filter = (filter_t *)p_this;
88 filter_sys_t *p_sys = p_filter->p_sys;
93 char *myCtime( time_t *t )
100 return strdup(ctime(t));
104 /****************************************************************************
105 * Filter: the whole thing
106 ****************************************************************************
107 * This function outputs subpictures at regular time intervals.
108 ****************************************************************************/
109 static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
114 p_spu = p_filter->pf_sub_buffer_new( p_filter );
115 if( !p_spu ) return NULL;
117 memset( &fmt, 0, sizeof(video_format_t) );
118 fmt.i_chroma = VLC_FOURCC('T','E','X','T');
120 fmt.i_width = fmt.i_height = 0;
121 fmt.i_x_offset = fmt.i_y_offset = 0;
123 p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
124 if( !p_spu->p_region )
126 p_filter->pf_sub_buffer_del( p_filter, p_spu );
130 p_spu->p_region->psz_text = myCtime(&t);
131 p_spu->i_start = date;
132 p_spu->i_stop = date + 1000000;
133 p_spu->b_ephemer = VLC_TRUE;
134 p_spu->b_absolute = VLC_FALSE;