vlc_es_out.h
资源名称:vlc-1.0.5.zip [点击查看]
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上传日期:2020-07-06
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文件大小:5k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * vlc_es_out.h: es_out (demuxer output) descriptor, queries and methods
- *****************************************************************************
- * Copyright (C) 1999-2004 the VideoLAN team
- * $Id: fdde1c935f298af2d0ad27782438109e66ba0ca5 $
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #ifndef VLC_ES_OUT_H
- #define VLC_ES_OUT_H 1
- /**
- * file
- * This file defines functions and structures for handling es_out in stream output
- */
- /**
- * defgroup es out Es Out
- * @{
- */
- enum es_out_mode_e
- {
- ES_OUT_MODE_NONE, /* don't select anything */
- ES_OUT_MODE_ALL, /* eg for stream output */
- ES_OUT_MODE_AUTO, /* best audio/video or for input follow audio-track, sub-track */
- ES_OUT_MODE_PARTIAL /* select programs given after --programs */
- };
- enum es_out_query_e
- {
- /* set ES selected for the es category (audio/video/spu) */
- ES_OUT_SET_ES, /* arg1= es_out_id_t* */
- ES_OUT_RESTART_ES, /* arg1= es_out_id_t* */
- /* set 'default' tag on ES (copied across from container) */
- ES_OUT_SET_ES_DEFAULT, /* arg1= es_out_id_t* */
- /* force selection/unselection of the ES (bypass current mode) */
- ES_OUT_SET_ES_STATE,/* arg1= es_out_id_t* arg2=bool */
- ES_OUT_GET_ES_STATE,/* arg1= es_out_id_t* arg2=bool* */
- /* */
- ES_OUT_SET_GROUP, /* arg1= int */
- /* PCR handling, DTS/PTS will be automatically computed using thoses PCR
- * XXX: SET_PCR(_GROUP) are in charge of the pace control. They will wait
- * to slow down the demuxer so that it reads at the right speed.
- * XXX: if you want PREROLL just call ES_OUT_SET_NEXT_DISPLAY_TIME and send
- * as you would normally do.
- */
- ES_OUT_SET_PCR, /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
- ES_OUT_SET_GROUP_PCR, /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
- ES_OUT_RESET_PCR, /* no arg */
- /* Try not to use this one as it is a bit hacky */
- ES_OUT_SET_ES_FMT, /* arg1= es_out_id_t* arg2=es_format_t* */
- /* Allow preroll of data (data with dts/pts < i_pts for all ES will be decoded but not displayed */
- ES_OUT_SET_NEXT_DISPLAY_TIME, /* arg1=int64_t i_pts(microsecond) */
- /* Set meta data for group (dynamic) */
- ES_OUT_SET_GROUP_META, /* arg1=int i_group arg2=vlc_meta_t */
- /* Set epg for group (dynamic) */
- ES_OUT_SET_GROUP_EPG, /* arg1=int i_group arg2=vlc_epg_t */
- /* */
- ES_OUT_DEL_GROUP, /* arg1=int i_group */
- /* Set scrambled state for one es */
- ES_OUT_SET_ES_SCRAMBLED_STATE, /* arg1=int i_group arg2=es_out_id_t* */
- /* Stop any buffering being done, and ask if es_out has no more data to
- * play.
- * It will not block and so MUST be used carrefully. The only good reason
- * is for interactive playback (like for DVD menu).
- * XXX You SHALL call ES_OUT_RESET_PCR before any other es_out_Control/Send calls. */
- ES_OUT_GET_EMPTY, /* arg1=bool* res=cannot fail */
- /* Set global meta data (The vlc_meta_t is not modified nor released) */
- ES_OUT_SET_META, /* arg1=const vlc_meta_t * */
- /* First value usable for private control */
- ES_OUT_PRIVATE_START = 0x10000,
- };
- struct es_out_t
- {
- es_out_id_t *(*pf_add) ( es_out_t *, const es_format_t * );
- int (*pf_send) ( es_out_t *, es_out_id_t *, block_t * );
- void (*pf_del) ( es_out_t *, es_out_id_t * );
- int (*pf_control)( es_out_t *, int i_query, va_list );
- void (*pf_destroy)( es_out_t * );
- bool b_sout;
- es_out_sys_t *p_sys;
- };
- LIBVLC_USED
- static inline es_out_id_t * es_out_Add( es_out_t *out, const es_format_t *fmt )
- {
- return out->pf_add( out, fmt );
- }
- static inline void es_out_Del( es_out_t *out, es_out_id_t *id )
- {
- out->pf_del( out, id );
- }
- static inline int es_out_Send( es_out_t *out, es_out_id_t *id,
- block_t *p_block )
- {
- return out->pf_send( out, id, p_block );
- }
- static inline int es_out_vaControl( es_out_t *out, int i_query, va_list args )
- {
- return out->pf_control( out, i_query, args );
- }
- static inline int es_out_Control( es_out_t *out, int i_query, ... )
- {
- va_list args;
- int i_result;
- va_start( args, i_query );
- i_result = es_out_vaControl( out, i_query, args );
- va_end( args );
- return i_result;
- }
- static inline void es_out_Delete( es_out_t *p_out )
- {
- p_out->pf_destroy( p_out );
- }
- static inline int es_out_ControlSetMeta( es_out_t *out, const vlc_meta_t *p_meta )
- {
- return es_out_Control( out, ES_OUT_SET_META, p_meta );
- }
- /**
- * @}
- */
- #endif