1 /*****************************************************************************
2 * udp.c: raw UDP input module
3 *****************************************************************************
4 * Copyright (C) 2001-2005 the VideoLAN team
5 * Copyright (C) 2007 Remi Denis-Courmont
8 * Authors: Christophe Massiot <massiot@via.ecp.fr>
9 * Tristan Leteurtre <tooney@via.ecp.fr>
10 * Laurent Aimar <fenrir@via.ecp.fr>
11 * Jean-Paul Saman <jpsaman #_at_# m2x dot nl>
14 * Reviewed: 23 October 2003, Jean-Paul Saman <jpsaman _at_ videolan _dot_ org>
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License along
27 * with this program; if not, write to the Free Software Foundation, Inc.,
28 * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
29 *****************************************************************************/
31 /*****************************************************************************
33 *****************************************************************************/
39 #include <vlc_common.h>
40 #include <vlc_plugin.h>
41 #include <vlc_access.h>
42 #include <vlc_network.h>
46 /*****************************************************************************
48 *****************************************************************************/
49 static int Open ( vlc_object_t * );
50 static void Close( vlc_object_t * );
53 set_shortname( N_("UDP" ) )
54 set_description( N_("UDP input") )
55 set_category( CAT_INPUT )
56 set_subcategory( SUBCAT_INPUT_ACCESS )
58 add_obsolete_integer( "server-port" ) /* since 1.2.0 */
60 set_capability( "access", 0 )
61 add_shortcut( "udp", "udpstream", "udp4", "udp6" )
63 set_callbacks( Open, Close )
66 /*****************************************************************************
68 *****************************************************************************/
69 static block_t *BlockUDP( access_t * );
70 static int Control( access_t *, int, va_list );
72 /*****************************************************************************
73 * Open: open the socket
74 *****************************************************************************/
75 static int Open( vlc_object_t *p_this )
77 access_t *p_access = (access_t*)p_this;
79 char *psz_name = strdup( p_access->psz_location );
81 const char *psz_server_addr, *psz_bind_addr = "";
82 int i_bind_port = 1234, i_server_port = 0;
86 access_InitFields( p_access );
87 ACCESS_SET_CALLBACKS( NULL, BlockUDP, Control, NULL );
89 /* Parse psz_name syntax :
90 * [serveraddr[:serverport]][@[bindaddr]:[bindport]] */
91 psz_parser = strchr( psz_name, '@' );
92 if( psz_parser != NULL )
94 /* Found bind address and/or bind port */
96 psz_bind_addr = psz_parser;
98 if( psz_bind_addr[0] == '[' )
99 /* skips bracket'd IPv6 address */
100 psz_parser = strchr( psz_parser, ']' );
102 if( psz_parser != NULL )
104 psz_parser = strchr( psz_parser, ':' );
105 if( psz_parser != NULL )
107 *psz_parser++ = '\0';
108 i_bind_port = atoi( psz_parser );
113 psz_server_addr = psz_name;
114 psz_parser = ( psz_server_addr[0] == '[' )
115 ? strchr( psz_name, ']' ) /* skips bracket'd IPv6 address */
118 if( psz_parser != NULL )
120 psz_parser = strchr( psz_parser, ':' );
121 if( psz_parser != NULL )
123 *psz_parser++ = '\0';
124 i_server_port = atoi( psz_parser );
128 msg_Dbg( p_access, "opening server=%s:%d local=%s:%d",
129 psz_server_addr, i_server_port, psz_bind_addr, i_bind_port );
131 fd = net_OpenDgram( p_access, psz_bind_addr, i_bind_port,
132 psz_server_addr, i_server_port, IPPROTO_UDP );
136 msg_Err( p_access, "cannot open socket" );
139 p_access->p_sys = (void *)(intptr_t)fd;
144 /*****************************************************************************
145 * Close: free unused data structures
146 *****************************************************************************/
147 static void Close( vlc_object_t *p_this )
149 access_t *p_access = (access_t*)p_this;
151 net_Close( (intptr_t)p_access->p_sys );
154 /*****************************************************************************
156 *****************************************************************************/
157 static int Control( access_t *p_access, int i_query, va_list args )
165 case ACCESS_CAN_SEEK:
166 case ACCESS_CAN_FASTSEEK:
167 case ACCESS_CAN_PAUSE:
168 case ACCESS_CAN_CONTROL_PACE:
169 pb_bool = (bool*)va_arg( args, bool* );
173 case ACCESS_GET_PTS_DELAY:
174 pi_64 = (int64_t*)va_arg( args, int64_t * );
175 *pi_64 = INT64_C(1000)
176 * var_InheritInteger(p_access, "network-caching");
180 case ACCESS_SET_PAUSE_STATE:
181 case ACCESS_GET_TITLE_INFO:
182 case ACCESS_SET_TITLE:
183 case ACCESS_SET_SEEKPOINT:
184 case ACCESS_SET_PRIVATE_ID_STATE:
185 case ACCESS_GET_CONTENT_TYPE:
189 msg_Warn( p_access, "unimplemented query in control" );
196 /*****************************************************************************
198 *****************************************************************************/
199 static block_t *BlockUDP( access_t *p_access )
201 access_sys_t *p_sys = p_access->p_sys;
205 if( p_access->info.b_eof )
209 p_block = block_New( p_access, MTU );
210 len = net_Read( p_access, (intptr_t)p_sys, NULL,
211 p_block->p_buffer, MTU, false );
214 block_Release( p_block );
218 return block_Realloc( p_block, 0, len );