1 /*****************************************************************************
2 * vlc_sout.h : stream output module
3 *****************************************************************************
4 * Copyright (C) 2002-2008 VLC authors and VideoLAN
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>
11 * RĂ©mi Denis-Courmont
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU Lesser General Public License as published by
15 * the Free Software Foundation; either version 2.1 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU Lesser General Public License for more details.
23 * You should have received a copy of the GNU Lesser General Public License
24 * along with this program; if not, write to the Free Software Foundation,
25 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
26 *****************************************************************************/
33 * This file defines structures and functions for stream output in vlc
40 #include <sys/types.h>
43 /** Stream output instance (FIXME: should be private to src/ to avoid
44 * invalid unsynchronized access) */
45 struct sout_instance_t
51 /** count of output that can't control the space */
52 int i_out_pace_nocontrol
;
55 sout_stream_t
*p_stream
;
58 /****************************************************************************
59 * sout_stream_id_sys_t: opaque (private for all sout_stream_t)
60 ****************************************************************************/
61 typedef struct sout_stream_id_sys_t sout_stream_id_sys_t
;
63 /** Stream output access_output */
64 struct sout_access_out_t
72 sout_access_out_sys_t
*p_sys
;
73 int (*pf_seek
)( sout_access_out_t
*, off_t
);
74 ssize_t (*pf_read
)( sout_access_out_t
*, block_t
* );
75 ssize_t (*pf_write
)( sout_access_out_t
*, block_t
* );
76 int (*pf_control
)( sout_access_out_t
*, int, va_list );
78 config_chain_t
*p_cfg
;
81 enum access_out_query_e
83 ACCESS_OUT_CONTROLS_PACE
, /* arg1=bool *, can fail (assume true) */
84 ACCESS_OUT_CAN_SEEK
, /* arg1=bool *, can fail (assume true) */
87 VLC_API sout_access_out_t
* sout_AccessOutNew( vlc_object_t
*, const char *psz_access
, const char *psz_name
) VLC_USED
;
88 #define sout_AccessOutNew( obj, access, name ) \
89 sout_AccessOutNew( VLC_OBJECT(obj), access, name )
90 VLC_API
void sout_AccessOutDelete( sout_access_out_t
* );
91 VLC_API
int sout_AccessOutSeek( sout_access_out_t
*, off_t
);
92 VLC_API ssize_t
sout_AccessOutRead( sout_access_out_t
*, block_t
* );
93 VLC_API ssize_t
sout_AccessOutWrite( sout_access_out_t
*, block_t
* );
94 VLC_API
int sout_AccessOutControl( sout_access_out_t
*, int, ... );
96 static inline bool sout_AccessOutCanControlPace( sout_access_out_t
*p_ao
)
99 if( sout_AccessOutControl( p_ao
, ACCESS_OUT_CONTROLS_PACE
, &b
) )
104 /** Muxer structure */
110 sout_instance_t
*p_sout
;
113 config_chain_t
*p_cfg
;
115 sout_access_out_t
*p_access
;
117 int (*pf_addstream
)( sout_mux_t
*, sout_input_t
* );
118 int (*pf_delstream
)( sout_mux_t
*, sout_input_t
* );
119 int (*pf_mux
) ( sout_mux_t
* );
120 int (*pf_control
) ( sout_mux_t
*, int, va_list );
122 /* here are all inputs accepted by muxer */
124 sout_input_t
**pp_inputs
;
127 sout_mux_sys_t
*p_sys
;
129 /* XXX private to stream_output.c */
130 /* if muxer doesn't support adding stream at any time then we first wait
131 * for stream then we refuse all stream and start muxing */
132 bool b_add_stream_any_time
;
133 bool b_waiting_stream
;
134 /* we wait one second after first stream added */
135 mtime_t i_add_stream_start
;
138 enum sout_mux_query_e
141 MUX_CAN_ADD_STREAM_WHILE_MUXING
, /* arg1= bool *, res=cannot fail */
143 MUX_GET_ADD_STREAM_WAIT
, /* arg1= bool *, res=cannot fail */
144 MUX_GET_MIME
, /* arg1= char ** res=can fail */
150 block_fifo_t
*p_fifo
;
156 VLC_API sout_mux_t
* sout_MuxNew( sout_instance_t
*, const char *, sout_access_out_t
* ) VLC_USED
;
157 VLC_API sout_input_t
* sout_MuxAddStream( sout_mux_t
*, es_format_t
* ) VLC_USED
;
158 VLC_API
void sout_MuxDeleteStream( sout_mux_t
*, sout_input_t
* );
159 VLC_API
void sout_MuxDelete( sout_mux_t
* );
160 VLC_API
void sout_MuxSendBuffer( sout_mux_t
*, sout_input_t
*, block_t
* );
161 VLC_API
int sout_MuxGetStream(sout_mux_t
*, int , mtime_t
*);
163 static inline int sout_MuxControl( sout_mux_t
*p_mux
, int i_query
, ... )
168 va_start( args
, i_query
);
169 i_result
= p_mux
->pf_control( p_mux
, i_query
, args
);
174 /****************************************************************************
176 ****************************************************************************/
182 sout_instance_t
*p_sout
;
185 config_chain_t
*p_cfg
;
186 sout_stream_t
*p_next
;
188 /* add, remove a stream */
189 sout_stream_id_sys_t
*(*pf_add
)( sout_stream_t
*, es_format_t
* );
190 int (*pf_del
)( sout_stream_t
*, sout_stream_id_sys_t
* );
191 /* manage a packet */
192 int (*pf_send
)( sout_stream_t
*, sout_stream_id_sys_t
*, block_t
* );
194 sout_stream_sys_t
*p_sys
;
198 VLC_API
void sout_StreamChainDelete(sout_stream_t
*p_first
, sout_stream_t
*p_last
);
199 VLC_API sout_stream_t
*sout_StreamChainNew(sout_instance_t
*p_sout
,
200 char *psz_chain
, sout_stream_t
*p_next
, sout_stream_t
**p_last
) VLC_USED
;
202 static inline sout_stream_id_sys_t
*sout_StreamIdAdd( sout_stream_t
*s
, es_format_t
*fmt
)
204 return s
->pf_add( s
, fmt
);
206 static inline int sout_StreamIdDel( sout_stream_t
*s
, sout_stream_id_sys_t
*id
)
208 return s
->pf_del( s
, id
);
210 static inline int sout_StreamIdSend( sout_stream_t
*s
, sout_stream_id_sys_t
*id
, block_t
*b
)
212 return s
->pf_send( s
, id
, b
);
215 /****************************************************************************
217 ****************************************************************************/
219 VLC_API encoder_t
* sout_EncoderCreate( vlc_object_t
*obj
);
220 #define sout_EncoderCreate(o) sout_EncoderCreate(VLC_OBJECT(o))
222 /****************************************************************************
224 ****************************************************************************/
225 VLC_API session_descriptor_t
* sout_AnnounceRegisterSDP( vlc_object_t
*, const char *, const char * ) VLC_USED
;
226 VLC_API
int sout_AnnounceUnRegister(vlc_object_t
*,session_descriptor_t
* );
227 #define sout_AnnounceRegisterSDP(o, sdp, addr) \
228 sout_AnnounceRegisterSDP(VLC_OBJECT (o), sdp, addr)
229 #define sout_AnnounceUnRegister(o, a) \
230 sout_AnnounceUnRegister(VLC_OBJECT (o), a)
236 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
;
237 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
);
238 VLC_API
char * sdp_AddAttribute(char **sdp
, const char *name
, const char *fmt
, ...) VLC_FORMAT( 3, 4 );
240 /** Description module */
241 typedef struct sout_description_data_t
246 } sout_description_data_t
;