1 /*****************************************************************************
2 * udp.c: raw UDP access plug-in
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
5 * $Id: udp.c,v 1.6 2002/03/27 22:15:40 massiot Exp $
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
28 #include <sys/types.h>
34 #include <videolan/vlc.h>
38 #elif defined( _MSC_VER ) && defined( _WIN32 )
42 #include "stream_control.h"
43 #include "input_ext-intf.h"
44 #include "input_ext-dec.h"
45 #include "input_ext-plugins.h"
49 /*****************************************************************************
51 *****************************************************************************/
52 static void input_getfunctions( function_list_t * );
53 static int UDPOpen ( struct input_thread_s * );
54 static int UDPSetProgram ( struct input_thread_s * , pgrm_descriptor_t * );
56 /*****************************************************************************
57 * Build configuration tree.
58 *****************************************************************************/
63 SET_DESCRIPTION( "Raw UDP access plug-in" )
64 ADD_CAPABILITY( ACCESS, 0 )
66 ADD_SHORTCUT( "udpstream" )
67 ADD_SHORTCUT( "udp4" )
68 ADD_SHORTCUT( "udp6" )
72 input_getfunctions( &p_module->p_functions->access );
75 MODULE_DEACTIVATE_START
76 MODULE_DEACTIVATE_STOP
78 /*****************************************************************************
79 * Functions exported as capabilities. They are declared as static so that
80 * we don't pollute the namespace too much.
81 *****************************************************************************/
82 static void input_getfunctions( function_list_t * p_function_list )
84 #define input p_function_list->functions.access
85 input.pf_open = UDPOpen;
86 input.pf_read = input_FDNetworkRead;
87 input.pf_close = input_FDClose;
88 input.pf_set_program = UDPSetProgram;
89 input.pf_set_area = NULL;
94 /*****************************************************************************
95 * UDPOpen: open the socket
96 *****************************************************************************/
97 static int UDPOpen( input_thread_t * p_input )
99 input_socket_t * p_access_data;
100 struct module_s * p_network;
101 char * psz_network = "";
102 char * psz_name = strdup(p_input->psz_name);
103 char * psz_parser = psz_name;
104 char * psz_server_addr = "";
105 char * psz_server_port = "";
106 char * psz_bind_addr = "";
107 char * psz_bind_port = "";
108 int i_bind_port = 0, i_server_port = 0;
109 network_socket_t socket_desc;
111 if( config_GetIntVariable( "ipv4" ) )
113 psz_network = "ipv4";
115 if( config_GetIntVariable( "ipv6" ) )
117 psz_network = "ipv6";
120 if( *p_input->psz_access )
122 /* Find out which shortcut was used */
123 if( !strncmp( p_input->psz_access, "udp6", 5 ) )
125 psz_network = "ipv6";
127 else if( !strncmp( p_input->psz_access, "udp4", 5 ) )
129 psz_network = "ipv4";
133 /* Parse psz_name syntax :
134 * [serveraddr[:serverport]][@[bindaddr]:[bindport]] */
136 if( *psz_parser && *psz_parser != '@' )
139 psz_server_addr = psz_parser;
141 while( *psz_parser && *psz_parser != ':' && *psz_parser != '@' )
143 if( *psz_parser == '[' )
146 while( *psz_parser && *psz_parser != ']' )
154 if( *psz_parser == ':' )
156 /* Found server port */
157 *psz_parser = '\0'; /* Terminate server name */
159 psz_server_port = psz_parser;
161 while( *psz_parser && *psz_parser != '@' )
168 if( *psz_parser == '@' )
170 /* Found bind address or bind port */
171 *psz_parser = '\0'; /* Terminate server port or name if necessary */
174 if( *psz_parser && *psz_parser != ':' )
176 /* Found bind address */
177 psz_bind_addr = psz_parser;
179 while( *psz_parser && *psz_parser != ':' )
181 if( *psz_parser == '[' )
184 while( *psz_parser && *psz_parser != ']' )
193 if( *psz_parser == ':' )
195 /* Found bind port */
196 *psz_parser = '\0'; /* Terminate bind address if necessary */
199 psz_bind_port = psz_parser;
203 /* Convert ports format */
204 if( *psz_server_port )
206 i_server_port = strtol( psz_server_port, &psz_parser, 10 );
209 intf_ErrMsg( "input error: cannot parse server port near %s",
218 i_bind_port = strtol( psz_bind_port, &psz_parser, 10 );
221 intf_ErrMsg( "input error: cannot parse bind port near %s",
228 vlc_mutex_lock( &p_input->stream.stream_lock );
229 p_input->stream.b_pace_control = 0;
230 p_input->stream.b_seekable = 0;
231 p_input->stream.p_selected_area->i_tell = 0;
232 p_input->stream.i_method = INPUT_METHOD_NETWORK;
233 vlc_mutex_unlock( &p_input->stream.stream_lock );
235 intf_WarnMsg( 2, "input: opening server=%s:%d local=%s:%d",
236 psz_server_addr, i_server_port, psz_bind_addr, i_bind_port );
238 /* Prepare the network_socket_t structure */
239 socket_desc.i_type = NETWORK_UDP;
240 socket_desc.psz_bind_addr = psz_bind_addr;
241 socket_desc.i_bind_port = i_bind_port;
242 socket_desc.psz_server_addr = psz_server_addr;
243 socket_desc.i_server_port = i_server_port;
245 /* Find an appropriate network module */
246 p_network = module_Need( MODULE_CAPABILITY_NETWORK, psz_network,
249 if( p_network == NULL )
253 module_Unneed( p_network );
255 p_access_data = p_input->p_access_data = malloc( sizeof(input_socket_t) );
256 if( p_access_data == NULL )
258 intf_ErrMsg( "input error: Out of memory" );
262 p_access_data->i_handle = socket_desc.i_handle;
263 p_input->i_mtu = socket_desc.i_mtu;
268 /*****************************************************************************
269 * UDPSetProgram: Selects another program
270 *****************************************************************************/
271 int UDPSetProgram( input_thread_t * p_input,
272 pgrm_descriptor_t * p_new_prg )
276 if ( p_input->stream.p_selected_program )
278 for ( i_es_index = 1 ; /* 0 should be the PMT */
279 i_es_index < p_input->stream.p_selected_program->
283 #define p_es p_input->stream.p_selected_program->pp_es[i_es_index]
284 if ( p_es->p_decoder_fifo )
286 input_UnselectES( p_input , p_es );
287 p_es->p_pes = NULL; /* FIXME */
293 for (i_es_index = 1 ; i_es_index < p_new_prg->i_es_number ; i_es_index ++ )
295 #define p_es p_new_prg->pp_es[i_es_index]
296 switch( p_es->i_cat )
300 if ( p_main->b_video )
302 input_SelectES( p_input , p_es );
307 if ( p_main->b_audio )
309 input_SelectES( p_input , p_es );
313 input_SelectES( p_input , p_es );
319 p_input->stream.p_selected_program = p_new_prg;