vlc_demux.h
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- /*****************************************************************************
- * vlc_demux.h
- *****************************************************************************
- * Copyright (C) 1999-2004 VideoLAN
- * $Id: vlc_demux.h 8520 2004-08-25 18:50:36Z fenrir $
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #ifndef _VLC_DEMUX_H
- #define _VLC_DEMUX_H 1
- /**
- * defgroup demux Demux
- * @{
- */
- struct demux_t
- {
- VLC_COMMON_MEMBERS
- /* Module properties */
- module_t *p_module;
- /* eg informative but needed (we can have access+demux) */
- char *psz_access;
- char *psz_demux;
- char *psz_path;
- /* input stream */
- stream_t *s; /* NULL in case of a access+demux in one */
- /* es output */
- es_out_t *out; /* ou p_es_out */
- /* set by demuxer */
- int (*pf_demux) ( demux_t * ); /* demux one frame only */
- int (*pf_control)( demux_t *, int i_query, va_list args);
- /* Demux has to maintain them uptodate
- * when it is responsible of seekpoint/title */
- struct
- {
- unsigned int i_update; /* Demux sets them on change,
- Input removes them once take into account*/
- /* Seekpoint/Title at demux level */
- int i_title; /* idem, start from 0 (could be menu) */
- int i_seekpoint; /* idem, start from 0 */
- } info;
- demux_sys_t *p_sys;
- };
- enum demux_query_e
- {
- /* I. Common queries to access_demux and demux */
- /* POSITION double between 0.0 and 1.0 */
- DEMUX_GET_POSITION, /* arg1= double * res= */
- DEMUX_SET_POSITION, /* arg1= double res=can fail */
- /* LENGTH/TIME in microsecond, 0 if unknown */
- DEMUX_GET_LENGTH, /* arg1= int64_t * res= */
- DEMUX_GET_TIME, /* arg1= int64_t * res= */
- DEMUX_SET_TIME, /* arg1= int64_t res=can fail */
- /* TITLE_INFO only if more than 1 title or 1 chapter */
- DEMUX_GET_TITLE_INFO, /* arg1=input_title_t*** arg2=int* can fail */
- /* TITLE/SEEKPOINT, only when TITLE_INFO succeed */
- DEMUX_SET_TITLE, /* arg1= int can fail */
- DEMUX_SET_SEEKPOINT, /* arg1= int can fail */
- /* DEMUX_SET_GROUP only a hit for demuxer (mainly DVB) to allow not
- * reading everything (you should not use this to call es_out_Control)
- * if you don't know what to do with it, just IGNORE it, it is safe(r)
- * -1 means all group, 0 default group (first es added) */
- DEMUX_SET_GROUP, /* arg1= int can fail */
- /* Ask the demux to demux until the given date at the next pf_demux call
- * but not more (and not less, at the precision avaiable of course).
- * XXX: not mandatory (except for subtitle demux) but I will help a lot
- * for multi-input
- */
- DEMUX_SET_NEXT_DEMUX_TIME, /* arg1= int64_t * can fail */
- /* FPS for correct subtitles handling */
- DEMUX_GET_FPS, /* arg1= float * res=can fail */
- /* Meta data */
- DEMUX_GET_META, /* arg1= vlc_meta_t ** res=can fail */
- /* II. Specific access_demux queries */
- DEMUX_CAN_PAUSE, /* arg1= vlc_bool_t* cannot fail */
- DEMUX_CAN_CONTROL_PACE, /* arg1= vlc_bool_t* cannot fail */
- DEMUX_GET_PTS_DELAY, /* arg1= int64_t* cannot fail */
- DEMUX_SET_PAUSE_STATE, /* arg1= vlc_bool_t can fail */
- };
- /* stream_t *s could be null and then it mean a access+demux in one */
- #define demux2_New( a, b, c, d, e, f ) __demux2_New(VLC_OBJECT(a),b,c,d,e,f)
- 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_EXPORT( void, demux2_Delete, ( demux_t * ) );
- 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 ) );
- static inline int demux2_Demux( demux_t *p_demux )
- {
- return p_demux->pf_demux( p_demux );
- }
- static inline int demux2_vaControl( demux_t *p_demux, int i_query, va_list args )
- {
- return p_demux->pf_control( p_demux, i_query, args );
- }
- static inline int demux2_Control( demux_t *p_demux, int i_query, ... )
- {
- va_list args;
- int i_result;
- va_start( args, i_query );
- i_result = demux2_vaControl( p_demux, i_query, args );
- va_end( args );
- return i_result;
- }
- /**
- * @}
- */
- #endif