1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 1999-2005 VideoLAN (Centrale Réseaux) and its contributors
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 *****************************************************************************/
25 #define _VLC_DEMUX_H 1
28 * \defgroup demux Demux
36 /* Module properties */
39 /* eg informative but needed (we can have access+demux) */
45 stream_t *s; /* NULL in case of a access+demux in one */
48 es_out_t *out; /* our p_es_out */
51 int (*pf_demux) ( demux_t * ); /* demux one frame only */
52 int (*pf_control)( demux_t *, int i_query, va_list args);
54 /* Demux has to maintain them uptodate
55 * when it is responsible of seekpoint/title */
58 unsigned int i_update; /* Demux sets them on change,
59 Input removes them once take into account*/
60 /* Seekpoint/Title at demux level */
61 int i_title; /* idem, start from 0 (could be menu) */
62 int i_seekpoint; /* idem, start from 0 */
69 /* I. Common queries to access_demux and demux */
70 /* POSITION double between 0.0 and 1.0 */
71 DEMUX_GET_POSITION, /* arg1= double * res= */
72 DEMUX_SET_POSITION, /* arg1= double res=can fail */
74 /* LENGTH/TIME in microsecond, 0 if unknown */
75 DEMUX_GET_LENGTH, /* arg1= int64_t * res= */
76 DEMUX_GET_TIME, /* arg1= int64_t * res= */
77 DEMUX_SET_TIME, /* arg1= int64_t res=can fail */
79 /* TITLE_INFO only if more than 1 title or 1 chapter */
80 DEMUX_GET_TITLE_INFO, /* arg1=input_title_t*** arg2=int* can fail */
82 /* TITLE/SEEKPOINT, only when TITLE_INFO succeed */
83 DEMUX_SET_TITLE, /* arg1= int can fail */
84 DEMUX_SET_SEEKPOINT, /* arg1= int can fail */
86 /* DEMUX_SET_GROUP only a hit for demuxer (mainly DVB) to allow not
87 * reading everything (you should not use this to call es_out_Control)
88 * if you don't know what to do with it, just IGNORE it, it is safe(r)
89 * -1 means all group, 0 default group (first es added) */
90 DEMUX_SET_GROUP, /* arg1= int can fail */
92 /* Ask the demux to demux until the given date at the next pf_demux call
93 * but not more (and not less, at the precision avaiable of course).
94 * XXX: not mandatory (except for subtitle demux) but I will help a lot
97 DEMUX_SET_NEXT_DEMUX_TIME, /* arg1= int64_t * can fail */
98 /* FPS for correct subtitles handling */
99 DEMUX_GET_FPS, /* arg1= float * res=can fail */
101 DEMUX_GET_META, /* arg1= vlc_meta_t ** res=can fail */
104 /* II. Specific access_demux queries */
105 DEMUX_CAN_PAUSE, /* arg1= vlc_bool_t* cannot fail */
106 DEMUX_CAN_CONTROL_PACE, /* arg1= vlc_bool_t* cannot fail */
107 DEMUX_GET_PTS_DELAY, /* arg1= int64_t* cannot fail */
108 DEMUX_SET_PAUSE_STATE /* arg1= vlc_bool_t can fail */
111 /* stream_t *s could be null and then it mean a access+demux in one */
112 #define demux2_New( a, b, c, d, e, f,g ) __demux2_New(VLC_OBJECT(a),b,c,d,e,f,g)
113 VLC_EXPORT( demux_t *, __demux2_New, ( vlc_object_t *p_obj, char *psz_access, char *psz_demux, char *psz_path, stream_t *s, es_out_t *out, vlc_bool_t ) );
114 VLC_EXPORT( void, demux2_Delete, ( demux_t * ) );
115 VLC_EXPORT( int, demux2_vaControlHelper, ( stream_t *, int64_t i_start, int64_t i_end, int i_bitrate, int i_align, int i_query, va_list args ) );
117 static inline int demux2_Demux( demux_t *p_demux )
119 return p_demux->pf_demux( p_demux );
121 static inline int demux2_vaControl( demux_t *p_demux, int i_query, va_list args )
123 return p_demux->pf_control( p_demux, i_query, args );
125 static inline int demux2_Control( demux_t *p_demux, int i_query, ... )
130 va_start( args, i_query );
131 i_result = demux2_vaControl( p_demux, i_query, args );