vlc_sout.h
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:9k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * stream_output.h : stream output module
- *****************************************************************************
- * Copyright (C) 2002-2008 the VideoLAN team
- * $Id: f74fe9fd95f4301799af07bf687eec97b9a6923d $
- *
- * Authors: Christophe Massiot <massiot@via.ecp.fr>
- * Laurent Aimar <fenrir@via.ecp.fr>
- * Eric Petit <titer@videolan.org>
- * Jean-Paul Saman <jpsaman #_at_# m2x.nl>
- * Rémi Denis-Courmont
- *
- * 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_SOUT_H_
- #define VLC_SOUT_H_
- /**
- * file
- * This file defines structures and functions for stream ouput in vlc
- */
- #ifdef __cplusplus
- extern "C" {
- #endif
- #include <vlc_es.h>
- /** Stream output instance */
- struct sout_instance_t
- {
- VLC_COMMON_MEMBERS
- char *psz_sout;
- char *psz_chain;
- /* meta data (Read only) XXX it won't be set before the first packet received */
- vlc_meta_t *p_meta;
- /** count of output that can't control the space */
- int i_out_pace_nocontrol;
- vlc_mutex_t lock;
- sout_stream_t *p_stream;
- /** Private */
- sout_instance_sys_t *p_sys;
- };
- /** Stream output statistics */
- typedef enum
- {
- SOUT_STATISTIC_DECODED_VIDEO,
- SOUT_STATISTIC_DECODED_AUDIO,
- SOUT_STATISTIC_DECODED_SUBTITLE,
- /* Use them only if you do not goes through a access_out module */
- SOUT_STATISTIC_SENT_PACKET,
- SOUT_STATISTIC_SENT_BYTE,
- } sout_statistic_t;
- VLC_EXPORT( void, sout_UpdateStatistic, ( sout_instance_t *p_sout, sout_statistic_t, int ) );
- /****************************************************************************
- * sout_stream_id_t: opaque (private for all sout_stream_t)
- ****************************************************************************/
- typedef struct sout_stream_id_t sout_stream_id_t;
- /** Stream output access_output */
- struct sout_access_out_t
- {
- VLC_COMMON_MEMBERS
- module_t *p_module;
- char *psz_access;
- int i_writes;
- /** Local counter reset each time it is transferred to stats */
- int64_t i_sent_bytes;
- char *psz_path;
- sout_access_out_sys_t *p_sys;
- int (*pf_seek)( sout_access_out_t *, off_t );
- ssize_t (*pf_read)( sout_access_out_t *, block_t * );
- ssize_t (*pf_write)( sout_access_out_t *, block_t * );
- int (*pf_control)( sout_access_out_t *, int, va_list );
- config_chain_t *p_cfg;
- };
- enum access_out_query_e
- {
- ACCESS_OUT_CONTROLS_PACE, /* arg1=bool *, can fail (assume true) */
- };
- VLC_EXPORT( sout_access_out_t *,sout_AccessOutNew, ( vlc_object_t *, const char *psz_access, const char *psz_name ) );
- #define sout_AccessOutNew( obj, access, name )
- sout_AccessOutNew( VLC_OBJECT(obj), access, name )
- VLC_EXPORT( void, sout_AccessOutDelete, ( sout_access_out_t * ) );
- VLC_EXPORT( int, sout_AccessOutSeek, ( sout_access_out_t *, off_t ) );
- VLC_EXPORT( ssize_t, sout_AccessOutRead, ( sout_access_out_t *, block_t * ) );
- VLC_EXPORT( ssize_t, sout_AccessOutWrite, ( sout_access_out_t *, block_t * ) );
- VLC_EXPORT( int, sout_AccessOutControl, ( sout_access_out_t *, int, ... ) );
- static inline bool sout_AccessOutCanControlPace( sout_access_out_t *p_ao )
- {
- bool b;
- if( sout_AccessOutControl( p_ao, ACCESS_OUT_CONTROLS_PACE, &b ) )
- return true;
- return b;
- }
- /** Muxer structure */
- struct sout_mux_t
- {
- VLC_COMMON_MEMBERS
- module_t *p_module;
- sout_instance_t *p_sout;
- char *psz_mux;
- config_chain_t *p_cfg;
- sout_access_out_t *p_access;
- int (*pf_addstream)( sout_mux_t *, sout_input_t * );
- int (*pf_delstream)( sout_mux_t *, sout_input_t * );
- int (*pf_mux) ( sout_mux_t * );
- int (*pf_control) ( sout_mux_t *, int, va_list );
- /* here are all inputs accepted by muxer */
- int i_nb_inputs;
- sout_input_t **pp_inputs;
- /* mux private */
- sout_mux_sys_t *p_sys;
- /* XXX private to stream_output.c */
- /* if muxer doesn't support adding stream at any time then we first wait
- * for stream then we refuse all stream and start muxing */
- bool b_add_stream_any_time;
- bool b_waiting_stream;
- /* we wait one second after first stream added */
- mtime_t i_add_stream_start;
- };
- enum sout_mux_query_e
- {
- /* capabilities */
- MUX_CAN_ADD_STREAM_WHILE_MUXING, /* arg1= bool *, res=cannot fail */
- /* properties */
- MUX_GET_ADD_STREAM_WAIT, /* arg1= bool *, res=cannot fail */
- MUX_GET_MIME, /* arg1= char ** res=can fail */
- };
- struct sout_input_t
- {
- sout_instance_t *p_sout;
- es_format_t *p_fmt;
- block_fifo_t *p_fifo;
- void *p_sys;
- };
- VLC_EXPORT( sout_mux_t *, sout_MuxNew, ( sout_instance_t*, char *, sout_access_out_t * ) );
- VLC_EXPORT( sout_input_t *, sout_MuxAddStream, ( sout_mux_t *, es_format_t * ) );
- VLC_EXPORT( void, sout_MuxDeleteStream, ( sout_mux_t *, sout_input_t * ) );
- VLC_EXPORT( void, sout_MuxDelete, ( sout_mux_t * ) );
- VLC_EXPORT( void, sout_MuxSendBuffer, ( sout_mux_t *, sout_input_t *, block_t * ) );
- static inline int sout_MuxControl( sout_mux_t *p_mux, int i_query, ... )
- {
- va_list args;
- int i_result;
- va_start( args, i_query );
- i_result = p_mux->pf_control( p_mux, i_query, args );
- va_end( args );
- return i_result;
- }
- /****************************************************************************
- * sout_stream:
- ****************************************************************************/
- struct sout_stream_t
- {
- VLC_COMMON_MEMBERS
- module_t *p_module;
- sout_instance_t *p_sout;
- char *psz_name;
- config_chain_t *p_cfg;
- char *psz_next;
- /* Subpicture unit */
- spu_t *p_spu;
- /* add, remove a stream */
- sout_stream_id_t *(*pf_add)( sout_stream_t *, es_format_t * );
- int (*pf_del)( sout_stream_t *, sout_stream_id_t * );
- /* manage a packet */
- int (*pf_send)( sout_stream_t *, sout_stream_id_t *, block_t* );
- /* private */
- sout_stream_sys_t *p_sys;
- };
- VLC_EXPORT( sout_stream_t *, sout_StreamNew, ( sout_instance_t *, char *psz_chain ) );
- VLC_EXPORT( void, sout_StreamDelete, ( sout_stream_t * ) );
- static inline sout_stream_id_t *sout_StreamIdAdd( sout_stream_t *s, es_format_t *fmt )
- {
- return s->pf_add( s, fmt );
- }
- static inline int sout_StreamIdDel( sout_stream_t *s, sout_stream_id_t *id )
- {
- return s->pf_del( s, id );
- }
- static inline int sout_StreamIdSend( sout_stream_t *s, sout_stream_id_t *id, block_t *b )
- {
- return s->pf_send( s, id, b );
- }
- /****************************************************************************
- * Encoder
- ****************************************************************************/
- VLC_EXPORT( encoder_t *, sout_EncoderCreate, ( vlc_object_t *obj ) );
- #define sout_EncoderCreate(o) sout_EncoderCreate(VLC_OBJECT(o))
- /****************************************************************************
- * Announce handler
- ****************************************************************************/
- VLC_EXPORT(session_descriptor_t*,sout_AnnounceRegisterSDP, ( vlc_object_t *, const char *, const char *, announce_method_t* ) );
- VLC_EXPORT( int, sout_AnnounceUnRegister, (vlc_object_t *,session_descriptor_t* ) );
- #define sout_AnnounceRegisterSDP(o, sdp, addr, m)
- sout_AnnounceRegisterSDP(VLC_OBJECT (o), sdp, addr, m)
- #define sout_AnnounceUnRegister(o, a)
- sout_AnnounceUnRegister(VLC_OBJECT (o), a)
- VLC_EXPORT(announce_method_t*, sout_SAPMethod, (void) );
- VLC_EXPORT(void, sout_MethodRelease, (announce_method_t *) );
- /** SDP */
- VLC_EXPORT( char *, vlc_sdp_Start, ( vlc_object_t *obj, const char *cfgpref, const struct sockaddr *src, size_t srclen, const struct sockaddr *addr, size_t addrlen ) );
- VLC_EXPORT( char *, sdp_AddMedia, (char **sdp, const char *type, const char *protocol, int dport, unsigned pt, bool bw_indep, unsigned bw, const char *ptname, unsigned clockrate, unsigned channels, const char *fmtp) );
- VLC_EXPORT( char *, sdp_AddAttribute, (char **sdp, const char *name, const char *fmt, ...) LIBVLC_FORMAT( 3, 4 ) );
- #ifdef __cplusplus
- }
- #endif
- #endif