1 /*****************************************************************************
2 * announce.c : announce handler
3 *****************************************************************************
4 * Copyright (C) 2002-2007 the VideoLAN team
7 * Authors: Clément Stenac <zorglub@videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
29 #include "stream_output.h"
33 /* Private functions for the announce handler */
34 static announce_handler_t* announce_HandlerCreate( vlc_object_t *);
35 static int announce_Register( announce_handler_t *p_announce,
36 session_descriptor_t *p_session,
37 announce_method_t *p_method );
38 static int announce_UnRegister( announce_handler_t *p_announce,
39 session_descriptor_t *p_session );
41 struct announce_method_t
45 /****************************************************************************
47 ****************************************************************************/
50 * Register a new session with the announce handler, using a pregenerated SDP
52 * \param p_sout a sout instance structure
53 * \param psz_sdp the SDP to register
54 * \param psz_dst session address (needed for SAP address auto detection)
55 * \param p_method an announce method descriptor
56 * \return the new session descriptor structure
58 session_descriptor_t *
59 sout_AnnounceRegisterSDP( sout_instance_t *p_sout, const char *cfgpref,
60 const char *psz_sdp, const char *psz_dst,
61 announce_method_t *p_method )
63 session_descriptor_t *p_session;
64 announce_handler_t *p_announce = (announce_handler_t*)
65 vlc_object_find( p_sout,
70 msg_Dbg( p_sout, "no announce handler found, creating one" );
71 p_announce = announce_HandlerCreate( VLC_OBJECT( p_sout ) );
74 msg_Err( p_sout, "Creation failed" );
77 vlc_object_yield( p_announce );
80 p_session = malloc( sizeof( *p_session ) );
81 memset( p_session, 0, sizeof( *p_session ) );
82 p_session->psz_sdp = strdup( psz_sdp );
84 /* GRUIK. We should not convert back-and-forth from string to numbers */
86 if (vlc_getaddrinfo (VLC_OBJECT (p_sout), psz_dst, 0, NULL, &res) == 0)
88 if (res->ai_addrlen <= sizeof (p_session->addr))
89 memcpy (&p_session->addr, res->ai_addr,
90 p_session->addrlen = res->ai_addrlen);
91 vlc_freeaddrinfo (res);
94 announce_Register( p_announce, p_session, p_method );
96 vlc_object_release( p_announce );
101 * UnRegister an existing session
103 * \param p_sout a sout instance structure
104 * \param p_session the session descriptor
105 * \return VLC_SUCCESS or an error
107 int sout_AnnounceUnRegister( sout_instance_t *p_sout,
108 session_descriptor_t *p_session )
111 announce_handler_t *p_announce = (announce_handler_t*)
112 vlc_object_find( p_sout,
117 msg_Dbg( p_sout, "unable to remove announce: no announce handler" );
120 i_ret = announce_UnRegister( p_announce, p_session );
124 vlc_object_release( p_announce );
130 * \return the SAP announce method
132 announce_method_t * sout_SAPMethod (void)
137 void sout_MethodRelease (announce_method_t *m)
139 assert (m == &sap_method);
142 /************************************************************************
143 * Announce handler functions (private)
144 ************************************************************************/
147 * Create the announce handler object
149 * \param p_this a vlc_object structure
150 * \return the new announce handler or NULL on error
152 static announce_handler_t *announce_HandlerCreate( vlc_object_t *p_this )
154 announce_handler_t *p_announce;
156 p_announce = vlc_object_create( p_this, VLC_OBJECT_ANNOUNCE );
160 msg_Err( p_this, "out of memory" );
164 p_announce->p_sap = NULL;
165 vlc_object_attach( p_announce, p_this->p_libvlc);
171 * Destroy a announce handler object
173 * \param p_announce the announce handler to destroy
174 * \return VLC_SUCCESS or an error
176 int announce_HandlerDestroy( announce_handler_t *p_announce )
178 if( p_announce->p_sap )
180 vlc_object_kill ((vlc_object_t *)p_announce->p_sap);
181 /* Wait for the SAP thread to exit */
182 vlc_thread_join( (vlc_object_t *)p_announce->p_sap );
183 announce_SAPHandlerDestroy( p_announce->p_sap );
186 /* Free the structure */
187 vlc_object_destroy( p_announce );
192 /* Register an announce */
193 static int announce_Register( announce_handler_t *p_announce,
194 session_descriptor_t *p_session,
195 announce_method_t *p_method )
197 if (p_method == NULL)
200 msg_Dbg( p_announce, "registering announce");
201 if( p_method == &sap_method )
203 /* Do we already have a SAP announce handler ? */
204 if( !p_announce->p_sap )
206 sap_handler_t *p_sap = announce_SAPHandlerCreate( p_announce );
207 msg_Dbg( p_announce, "creating SAP announce handler");
210 msg_Err( p_announce, "SAP handler creation failed" );
213 p_announce->p_sap = p_sap;
215 /* this will set p_session->p_sap for later deletion */
216 msg_Dbg( p_announce, "adding SAP session");
217 p_announce->p_sap->pf_add( p_announce->p_sap, p_session );
221 msg_Err( p_announce, "announce type unsupported" );
228 /* Unregister an announce */
229 static int announce_UnRegister( announce_handler_t *p_announce,
230 session_descriptor_t *p_session )
232 msg_Dbg( p_announce, "unregistering announce" );
233 if( p_announce->p_sap )
234 p_announce->p_sap->pf_del( p_announce->p_sap, p_session );