1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001-2003 VideoLAN
5 * $Id: sub.h,v 1.8 2003/10/11 22:40:05 hartman Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
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 #define SUB_TYPE_MICRODVD 0x00
25 #define SUB_TYPE_SUBRIP 0x01
26 #define SUB_TYPE_SSA1 0x02
27 #define SUB_TYPE_SSA2_4 0x03
28 #define SUB_TYPE_VPLAYER 0x04
29 #define SUB_TYPE_SAMI 0x05
30 #define SUB_TYPE_UNKNOWN 0xffff
32 typedef struct subtitle_s
41 typedef struct subtitle_demux_s
47 int (*pf_open) ( struct subtitle_demux_s *p_sub,
48 input_thread_t*p_input,
50 mtime_t i_microsecperframe,
52 int (*pf_demux)( struct subtitle_demux_s *p_sub, mtime_t i_maxdate );
53 int (*pf_seek) ( struct subtitle_demux_s *p_sub, mtime_t i_date );
54 void (*pf_close)( struct subtitle_demux_s *p_sub );
58 input_thread_t *p_input;
61 int i_previously_selected; // to make pf_seek
62 es_descriptor_t *p_es;
70 /*****************************************************************************
72 * I made somes wrappers : So use them !
73 * I think you shouldn't need access to subtitle_demux_t members else said
76 *****************************************************************************/
79 /*****************************************************************************
80 * subtitle_New: Start a new subtitle demux instance (but subtitle ES isn't
81 * selected by default.
82 *****************************************************************************
83 * Return: NULL if failed, else a pointer on a new subtitle_demux_t.
85 * XXX: - if psz_name is NULL then --sub-file is read
86 * - i_microsecperframe is used only for microdvd file. (overriden
88 * - it's at this point that --sub-delay is applied
90 *****************************************************************************/
91 static inline subtitle_demux_t *subtitle_New( input_thread_t *p_input,
93 mtime_t i_microsecperframe,
95 /*****************************************************************************
96 * subtitle_Select: Select the related subtitle ES.
97 *****************************************************************************/
98 static inline void subtitle_Select( subtitle_demux_t *p_sub );
100 /*****************************************************************************
101 * subtitle_Unselect: Unselect the related subtitle ES.
102 *****************************************************************************/
103 static inline void subtitle_Unselect( subtitle_demux_t *p_sub );
105 /*****************************************************************************
106 * subtitle_Demux: send subtitle to decoder from last date to i_max
107 *****************************************************************************/
108 static inline int subtitle_Demux( subtitle_demux_t *p_sub, mtime_t i_max );
110 /*****************************************************************************
111 * subtitle_Seek: Seek to i_date
112 *****************************************************************************/
113 static inline int subtitle_Seek( subtitle_demux_t *p_sub, mtime_t i_date );
115 /*****************************************************************************
116 * subtitle_Close: Stop ES decoder and free all memory included p_sub.
117 *****************************************************************************/
118 static inline void subtitle_Close( subtitle_demux_t *p_sub );
124 /*****************************************************************************/
125 /*****************************************************************************/
126 /*****************************************************************************/
130 subtitle_demux_t *subtitle_New( input_thread_t *p_input,
132 mtime_t i_microsecperframe,
135 subtitle_demux_t *p_sub;
137 p_sub = vlc_object_create( p_input, sizeof( subtitle_demux_t ) );
138 p_sub->psz_object_name = "subtitle demux";
139 vlc_object_attach( p_sub, p_input );
140 p_sub->p_module = module_Need( p_sub, "subtitle demux", "" );
142 if( p_sub->p_module &&
143 p_sub->pf_open( p_sub,
149 msg_Info( p_input, "subtitle started" );
154 msg_Warn( p_input, "failed to start subtitle demux" );
155 vlc_object_detach( p_sub );
156 if( p_sub->p_module )
158 module_Unneed( p_sub, p_sub->p_module );
160 vlc_object_destroy( p_sub );
167 static inline void subtitle_Select( subtitle_demux_t *p_sub )
169 if( p_sub && p_sub->p_es )
171 vlc_mutex_lock( &p_sub->p_input->stream.stream_lock );
172 input_SelectES( p_sub->p_input, p_sub->p_es );
173 vlc_mutex_unlock( &p_sub->p_input->stream.stream_lock );
174 p_sub->i_previously_selected = 0;
177 static inline void subtitle_Unselect( subtitle_demux_t *p_sub )
179 if( p_sub && p_sub->p_es )
181 vlc_mutex_lock( &p_sub->p_input->stream.stream_lock );
182 input_UnselectES( p_sub->p_input, p_sub->p_es );
183 vlc_mutex_unlock( &p_sub->p_input->stream.stream_lock );
184 p_sub->i_previously_selected = 0;
188 static inline int subtitle_Demux( subtitle_demux_t *p_sub, mtime_t i_max )
190 return( p_sub->pf_demux( p_sub, i_max ) );
193 static inline int subtitle_Seek( subtitle_demux_t *p_sub, mtime_t i_date )
195 return( p_sub->pf_demux( p_sub, i_date ) );
198 static inline void subtitle_Close( subtitle_demux_t *p_sub )
200 msg_Info( p_sub, "subtitle stopped" );
203 vlc_object_detach( p_sub );
204 if( p_sub->p_module )
206 module_Unneed( p_sub, p_sub->p_module );
208 vlc_object_destroy( p_sub );