1 /*****************************************************************************
2 * stream_output.h : stream output module
3 *****************************************************************************
4 * Copyright (C) 2002-2007 the VideoLAN team
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8 * Laurent Aimar <fenrir@via.ecp.fr>
9 * Eric Petit <titer@videolan.org>
10 * Jean-Paul Saman <jpsaman #_at_# m2x.nl>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25 *****************************************************************************/
27 #if !defined( __LIBVLC__ )
28 #error You are not libvlc or one of its plugins. You cannot include this file
40 /** Stream output instance */
41 struct sout_instance_t
48 /* meta data (Read only) XXX it won't be set before the first packet received */
51 /** count of output that can't control the space */
52 int i_out_pace_nocontrol
;
55 sout_stream_t
*p_stream
;
58 sout_instance_sys_t
*p_sys
;
61 /****************************************************************************
62 * sout_stream_id_t: opaque (private for all sout_stream_t)
63 ****************************************************************************/
64 typedef struct sout_stream_id_t sout_stream_id_t
;
66 /** Stream output access_output */
67 struct sout_access_out_t
75 /** Local counter reset each time it is transferred to stats */
79 sout_access_out_sys_t
*p_sys
;
80 int (*pf_seek
)( sout_access_out_t
*, off_t
);
81 int (*pf_read
)( sout_access_out_t
*, block_t
* );
82 int (*pf_write
)( sout_access_out_t
*, block_t
* );
83 int (*pf_control
)( sout_access_out_t
*, int, va_list);
85 config_chain_t
*p_cfg
;
86 sout_instance_t
*p_sout
;
89 VLC_EXPORT( sout_access_out_t
*,sout_AccessOutNew
, ( sout_instance_t
*, const char *psz_access
, const char *psz_name
) );
90 VLC_EXPORT( void, sout_AccessOutDelete
, ( sout_access_out_t
* ) );
91 VLC_EXPORT( int, sout_AccessOutSeek
, ( sout_access_out_t
*, off_t
) );
92 VLC_EXPORT( int, sout_AccessOutRead
, ( sout_access_out_t
*, block_t
* ) );
93 VLC_EXPORT( int, sout_AccessOutWrite
, ( sout_access_out_t
*, block_t
* ) );
94 VLC_EXPORT( int, sout_AccessOutControl
,( sout_access_out_t
*, int, va_list ) );
96 /** Muxer structure */
102 sout_instance_t
*p_sout
;
105 config_chain_t
*p_cfg
;
107 sout_access_out_t
*p_access
;
109 int (*pf_addstream
)( sout_mux_t
*, sout_input_t
* );
110 int (*pf_delstream
)( sout_mux_t
*, sout_input_t
* );
111 int (*pf_mux
) ( sout_mux_t
* );
112 int (*pf_control
) ( sout_mux_t
*, int, va_list );
114 /* here are all inputs accepted by muxer */
116 sout_input_t
**pp_inputs
;
119 sout_mux_sys_t
*p_sys
;
121 /* XXX private to stream_output.c */
122 /* if muxer doesn't support adding stream at any time then we first wait
123 * for stream then we refuse all stream and start muxing */
124 vlc_bool_t b_add_stream_any_time
;
125 vlc_bool_t b_waiting_stream
;
126 /* we wait one second after first stream added */
127 mtime_t i_add_stream_start
;
130 enum sout_mux_query_e
133 MUX_CAN_ADD_STREAM_WHILE_MUXING
, /* arg1= vlc_bool_t *, res=cannot fail */
135 MUX_GET_ADD_STREAM_WAIT
, /* arg1= vlc_bool_t *, res=cannot fail */
136 MUX_GET_MIME
, /* arg1= char ** res=can fail */
141 sout_instance_t
*p_sout
;
144 block_fifo_t
*p_fifo
;
150 VLC_EXPORT( sout_mux_t
*, sout_MuxNew
, ( sout_instance_t
*, char *, sout_access_out_t
* ) );
151 VLC_EXPORT( sout_input_t
*, sout_MuxAddStream
, ( sout_mux_t
*, es_format_t
* ) );
152 VLC_EXPORT( void, sout_MuxDeleteStream
, ( sout_mux_t
*, sout_input_t
* ) );
153 VLC_EXPORT( void, sout_MuxDelete
, ( sout_mux_t
* ) );
154 VLC_EXPORT( void, sout_MuxSendBuffer
, ( sout_mux_t
*, sout_input_t
*, block_t
* ) );
156 static inline int sout_MuxControl( sout_mux_t
*p_mux
, int i_query
, ... )
161 va_start( args
, i_query
);
162 i_result
= p_mux
->pf_control( p_mux
, i_query
, args
);
167 /****************************************************************************
169 ****************************************************************************/
175 sout_instance_t
*p_sout
;
178 config_chain_t
*p_cfg
;
181 /* Subpicture unit */
184 /* add, remove a stream */
185 sout_stream_id_t
*(*pf_add
)( sout_stream_t
*, es_format_t
* );
186 int (*pf_del
)( sout_stream_t
*, sout_stream_id_t
* );
187 /* manage a packet */
188 int (*pf_send
)( sout_stream_t
*, sout_stream_id_t
*, block_t
* );
191 sout_stream_sys_t
*p_sys
;
194 VLC_EXPORT( sout_stream_t
*, sout_StreamNew
, ( sout_instance_t
*, char *psz_chain
) );
195 VLC_EXPORT( void, sout_StreamDelete
, ( sout_stream_t
* ) );
197 static inline sout_stream_id_t
*sout_StreamIdAdd( sout_stream_t
*s
, es_format_t
*fmt
)
199 return s
->pf_add( s
, fmt
);
201 static inline int sout_StreamIdDel( sout_stream_t
*s
, sout_stream_id_t
*id
)
203 return s
->pf_del( s
, id
);
205 static inline int sout_StreamIdSend( sout_stream_t
*s
, sout_stream_id_t
*id
, block_t
*b
)
207 return s
->pf_send( s
, id
, b
);
210 /****************************************************************************
212 ****************************************************************************/
213 VLC_EXPORT(session_descriptor_t
*,sout_AnnounceRegisterSDP
, (sout_instance_t
*, const char *, const char *, const char *, announce_method_t
* ) );
214 VLC_EXPORT( int, sout_AnnounceUnRegister
, (sout_instance_t
*,session_descriptor_t
* ) );
216 VLC_EXPORT(announce_method_t
*, sout_SAPMethod
, (void) );
217 VLC_EXPORT(void, sout_MethodRelease
, (announce_method_t
*) );
221 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
) );
222 VLC_EXPORT( char *, sdp_AddMedia
, (char **sdp
, const char *type
, const char *protocol
, int dport
, unsigned pt
, vlc_bool_t bw_indep
, unsigned bw
, const char *ptname
, unsigned clockrate
, unsigned channels
, const char *fmtp
) );
223 VLC_EXPORT( char *, sdp_AddAttribute
, (char **sdp
, const char *name
, const char *fmt
, ...) ATTRIBUTE_FORMAT( 3, 4 ) );