1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001-2003 VideoLAN
5 * $Id: sub.h,v 1.10 2003/11/05 00:17:50 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
52 int i_previously_selected; /* to make pf_seek */
53 es_descriptor_t *p_es;
57 typedef struct subtitle_demux_s
63 int (*pf_open) ( struct subtitle_demux_s *p_sub,
64 input_thread_t*p_input,
66 mtime_t i_microsecperframe,
68 int (*pf_demux)( struct subtitle_demux_s *p_sub, mtime_t i_maxdate );
69 int (*pf_seek) ( struct subtitle_demux_s *p_sub, mtime_t i_date );
70 void (*pf_close)( struct subtitle_demux_s *p_sub );
74 input_thread_t *p_input;
81 es_descriptor_t *p_es;
82 int i_previously_selected; /* to make pf_seek */
84 /*unsigned int i_tracks;
85 subtitle_track_t *p_tracks
91 /*****************************************************************************
93 * I made somes wrappers : So use them !
94 * I think you shouldn't need access to subtitle_demux_t members else said
97 *****************************************************************************/
100 /*****************************************************************************
101 * subtitle_New: Start a new subtitle demux instance (but subtitle ES isn't
102 * selected by default.
103 *****************************************************************************
104 * Return: NULL if failed, else a pointer on a new subtitle_demux_t.
106 * XXX: - if psz_name is NULL then --sub-file is read
107 * - i_microsecperframe is used only for microdvd file. (overriden
109 * - it's at this point that --sub-delay is applied
111 *****************************************************************************/
112 static inline subtitle_demux_t *subtitle_New( input_thread_t *p_input,
114 mtime_t i_microsecperframe,
116 /*****************************************************************************
117 * subtitle_Select: Select the related subtitle ES.
118 *****************************************************************************/
119 static inline void subtitle_Select( subtitle_demux_t *p_sub );
121 /*****************************************************************************
122 * subtitle_Unselect: Unselect the related subtitle ES.
123 *****************************************************************************/
124 static inline void subtitle_Unselect( subtitle_demux_t *p_sub );
126 /*****************************************************************************
127 * subtitle_Demux: send subtitle to decoder from last date to i_max
128 *****************************************************************************/
129 static inline int subtitle_Demux( subtitle_demux_t *p_sub, mtime_t i_max );
131 /*****************************************************************************
132 * subtitle_Seek: Seek to i_date
133 *****************************************************************************/
134 static inline int subtitle_Seek( subtitle_demux_t *p_sub, mtime_t i_date );
136 /*****************************************************************************
137 * subtitle_Close: Stop ES decoder and free all memory included p_sub.
138 *****************************************************************************/
139 static inline void subtitle_Close( subtitle_demux_t *p_sub );
145 /*****************************************************************************/
146 /*****************************************************************************/
147 /*****************************************************************************/
151 subtitle_demux_t *subtitle_New( input_thread_t *p_input,
153 mtime_t i_microsecperframe,
156 subtitle_demux_t *p_sub;
158 p_sub = vlc_object_create( p_input, sizeof( subtitle_demux_t ) );
159 p_sub->psz_object_name = "subtitle demux";
160 vlc_object_attach( p_sub, p_input );
161 p_sub->p_module = module_Need( p_sub, "subtitle demux", "" );
163 if( p_sub->p_module &&
164 p_sub->pf_open( p_sub,
170 msg_Info( p_input, "subtitle started" );
175 msg_Warn( p_input, "failed to start subtitle demux" );
176 vlc_object_detach( p_sub );
177 if( p_sub->p_module )
179 module_Unneed( p_sub, p_sub->p_module );
181 vlc_object_destroy( p_sub );
188 static inline void subtitle_Select( subtitle_demux_t *p_sub )
190 if( p_sub && p_sub->p_es )
192 vlc_mutex_lock( &p_sub->p_input->stream.stream_lock );
193 input_SelectES( p_sub->p_input, p_sub->p_es );
194 vlc_mutex_unlock( &p_sub->p_input->stream.stream_lock );
195 p_sub->i_previously_selected = 0;
198 static inline void subtitle_Unselect( subtitle_demux_t *p_sub )
200 if( p_sub && p_sub->p_es )
202 vlc_mutex_lock( &p_sub->p_input->stream.stream_lock );
203 input_UnselectES( p_sub->p_input, p_sub->p_es );
204 vlc_mutex_unlock( &p_sub->p_input->stream.stream_lock );
205 p_sub->i_previously_selected = 0;
209 static inline int subtitle_Demux( subtitle_demux_t *p_sub, mtime_t i_max )
211 return( p_sub->pf_demux( p_sub, i_max ) );
214 static inline int subtitle_Seek( subtitle_demux_t *p_sub, mtime_t i_date )
216 return( p_sub->pf_demux( p_sub, i_date ) );
219 static inline void subtitle_Close( subtitle_demux_t *p_sub )
221 msg_Info( p_sub, "subtitle stopped" );
224 vlc_object_detach( p_sub );
225 if( p_sub->p_module )
227 module_Unneed( p_sub, p_sub->p_module );
229 vlc_object_destroy( p_sub );