1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001-2003 VideoLAN
5 * $Id: sub.h,v 1.9 2003/10/31 22:46:19 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_VOBSUB 0x100
31 #define SUB_TYPE_UNKNOWN 0xffff
33 typedef struct subtitle_s
39 int i_vobsub_location;
43 typedef struct subtitle_track_s
51 int i_previously_selected; /* to make pf_seek */
52 es_descriptor_t *p_es;
56 typedef struct subtitle_demux_s
62 int (*pf_open) ( struct subtitle_demux_s *p_sub,
63 input_thread_t*p_input,
65 mtime_t i_microsecperframe,
67 int (*pf_demux)( struct subtitle_demux_s *p_sub, mtime_t i_maxdate );
68 int (*pf_seek) ( struct subtitle_demux_s *p_sub, mtime_t i_date );
69 void (*pf_close)( struct subtitle_demux_s *p_sub );
73 input_thread_t *p_input;
76 int i_previously_selected; /* to make pf_seek */
80 es_descriptor_t *p_es;
82 /*unsigned int i_tracks;
83 subtitle_track_t *p_tracks
89 /*****************************************************************************
91 * I made somes wrappers : So use them !
92 * I think you shouldn't need access to subtitle_demux_t members else said
95 *****************************************************************************/
98 /*****************************************************************************
99 * subtitle_New: Start a new subtitle demux instance (but subtitle ES isn't
100 * selected by default.
101 *****************************************************************************
102 * Return: NULL if failed, else a pointer on a new subtitle_demux_t.
104 * XXX: - if psz_name is NULL then --sub-file is read
105 * - i_microsecperframe is used only for microdvd file. (overriden
107 * - it's at this point that --sub-delay is applied
109 *****************************************************************************/
110 static inline subtitle_demux_t *subtitle_New( input_thread_t *p_input,
112 mtime_t i_microsecperframe,
114 /*****************************************************************************
115 * subtitle_Select: Select the related subtitle ES.
116 *****************************************************************************/
117 static inline void subtitle_Select( subtitle_demux_t *p_sub );
119 /*****************************************************************************
120 * subtitle_Unselect: Unselect the related subtitle ES.
121 *****************************************************************************/
122 static inline void subtitle_Unselect( subtitle_demux_t *p_sub );
124 /*****************************************************************************
125 * subtitle_Demux: send subtitle to decoder from last date to i_max
126 *****************************************************************************/
127 static inline int subtitle_Demux( subtitle_demux_t *p_sub, mtime_t i_max );
129 /*****************************************************************************
130 * subtitle_Seek: Seek to i_date
131 *****************************************************************************/
132 static inline int subtitle_Seek( subtitle_demux_t *p_sub, mtime_t i_date );
134 /*****************************************************************************
135 * subtitle_Close: Stop ES decoder and free all memory included p_sub.
136 *****************************************************************************/
137 static inline void subtitle_Close( subtitle_demux_t *p_sub );
143 /*****************************************************************************/
144 /*****************************************************************************/
145 /*****************************************************************************/
149 subtitle_demux_t *subtitle_New( input_thread_t *p_input,
151 mtime_t i_microsecperframe,
154 subtitle_demux_t *p_sub;
156 p_sub = vlc_object_create( p_input, sizeof( subtitle_demux_t ) );
157 p_sub->psz_object_name = "subtitle demux";
158 vlc_object_attach( p_sub, p_input );
159 p_sub->p_module = module_Need( p_sub, "subtitle demux", "" );
161 if( p_sub->p_module &&
162 p_sub->pf_open( p_sub,
168 msg_Info( p_input, "subtitle started" );
173 msg_Warn( p_input, "failed to start subtitle demux" );
174 vlc_object_detach( p_sub );
175 if( p_sub->p_module )
177 module_Unneed( p_sub, p_sub->p_module );
179 vlc_object_destroy( p_sub );
186 static inline void subtitle_Select( subtitle_demux_t *p_sub )
188 if( p_sub && p_sub->p_es )
190 vlc_mutex_lock( &p_sub->p_input->stream.stream_lock );
191 input_SelectES( p_sub->p_input, p_sub->p_es );
192 vlc_mutex_unlock( &p_sub->p_input->stream.stream_lock );
193 p_sub->i_previously_selected = 0;
196 static inline void subtitle_Unselect( subtitle_demux_t *p_sub )
198 if( p_sub && p_sub->p_es )
200 vlc_mutex_lock( &p_sub->p_input->stream.stream_lock );
201 input_UnselectES( p_sub->p_input, p_sub->p_es );
202 vlc_mutex_unlock( &p_sub->p_input->stream.stream_lock );
203 p_sub->i_previously_selected = 0;
207 static inline int subtitle_Demux( subtitle_demux_t *p_sub, mtime_t i_max )
209 return( p_sub->pf_demux( p_sub, i_max ) );
212 static inline int subtitle_Seek( subtitle_demux_t *p_sub, mtime_t i_date )
214 return( p_sub->pf_demux( p_sub, i_date ) );
217 static inline void subtitle_Close( subtitle_demux_t *p_sub )
219 msg_Info( p_sub, "subtitle stopped" );
222 vlc_object_detach( p_sub );
223 if( p_sub->p_module )
225 module_Unneed( p_sub, p_sub->p_module );
227 vlc_object_destroy( p_sub );