/***************************************************************************** * vlc_sout.h : stream output module ***************************************************************************** * Copyright (C) 2002-2008 VLC authors and VideoLAN * $Id: b9366f790374562525f49d5449ec882fff348ddf $ * * Authors: Christophe Massiot * Laurent Aimar * Eric Petit * Jean-Paul Saman * Rémi Denis-Courmont * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser 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 output in vlc */ #ifdef __cplusplus extern "C" { #endif #include #include /** Stream output instance (FIXME: should be private to src/ to avoid * invalid unsynchronized access) */ struct sout_instance_t { VLC_COMMON_MEMBERS char *psz_sout; /** count of output that can't control the space */ int i_out_pace_nocontrol; vlc_mutex_t lock; sout_stream_t *p_stream; }; /**************************************************************************** * sout_stream_id_sys_t: opaque (private for all sout_stream_t) ****************************************************************************/ typedef struct sout_stream_id_sys_t sout_stream_id_sys_t; /** Stream output access_output */ struct sout_access_out_t { VLC_COMMON_MEMBERS module_t *p_module; char *psz_access; 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) */ ACCESS_OUT_CAN_SEEK, /* arg1=bool *, can fail (assume true) */ }; VLC_API sout_access_out_t * sout_AccessOutNew( vlc_object_t *, const char *psz_access, const char *psz_name ) VLC_USED; #define sout_AccessOutNew( obj, access, name ) \ sout_AccessOutNew( VLC_OBJECT(obj), access, name ) VLC_API void sout_AccessOutDelete( sout_access_out_t * ); VLC_API int sout_AccessOutSeek( sout_access_out_t *, off_t ); VLC_API ssize_t sout_AccessOutRead( sout_access_out_t *, block_t * ); VLC_API ssize_t sout_AccessOutWrite( sout_access_out_t *, block_t * ); VLC_API 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 { es_format_t *p_fmt; block_fifo_t *p_fifo; void *p_sys; }; VLC_API sout_mux_t * sout_MuxNew( sout_instance_t*, const char *, sout_access_out_t * ) VLC_USED; VLC_API sout_input_t * sout_MuxAddStream( sout_mux_t *, es_format_t * ) VLC_USED; VLC_API void sout_MuxDeleteStream( sout_mux_t *, sout_input_t * ); VLC_API void sout_MuxDelete( sout_mux_t * ); VLC_API int sout_MuxSendBuffer( sout_mux_t *, sout_input_t *, block_t * ); VLC_API int sout_MuxGetStream(sout_mux_t *, int , mtime_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; sout_stream_t *p_next; /* add, remove a stream */ sout_stream_id_sys_t *(*pf_add)( sout_stream_t *, es_format_t * ); int (*pf_del)( sout_stream_t *, sout_stream_id_sys_t * ); /* manage a packet */ int (*pf_send)( sout_stream_t *, sout_stream_id_sys_t *, block_t* ); sout_stream_sys_t *p_sys; bool pace_nocontrol; }; VLC_API void sout_StreamChainDelete(sout_stream_t *p_first, sout_stream_t *p_last ); VLC_API sout_stream_t *sout_StreamChainNew(sout_instance_t *p_sout, char *psz_chain, sout_stream_t *p_next, sout_stream_t **p_last) VLC_USED; static inline sout_stream_id_sys_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_sys_t *id ) { return s->pf_del( s, id ); } static inline int sout_StreamIdSend( sout_stream_t *s, sout_stream_id_sys_t *id, block_t *b ) { return s->pf_send( s, id, b ); } /**************************************************************************** * Encoder ****************************************************************************/ VLC_API encoder_t * sout_EncoderCreate( vlc_object_t *obj ); #define sout_EncoderCreate(o) sout_EncoderCreate(VLC_OBJECT(o)) /**************************************************************************** * Announce handler ****************************************************************************/ VLC_API session_descriptor_t* sout_AnnounceRegisterSDP( vlc_object_t *, const char *, const char * ) VLC_USED; VLC_API int sout_AnnounceUnRegister(vlc_object_t *,session_descriptor_t* ); #define sout_AnnounceRegisterSDP(o, sdp, addr) \ sout_AnnounceRegisterSDP(VLC_OBJECT (o), sdp, addr) #define sout_AnnounceUnRegister(o, a) \ sout_AnnounceUnRegister(VLC_OBJECT (o), a) /** SDP */ struct sockaddr; VLC_API 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_USED; VLC_API 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_API char * sdp_AddAttribute(char **sdp, const char *name, const char *fmt, ...) VLC_FORMAT( 3, 4 ); /** Description module */ typedef struct sout_description_data_t { int i_es; es_format_t **es; vlc_sem_t *sem; } sout_description_data_t; #ifdef __cplusplus } #endif #endif