/*****************************************************************************
- * udp.c: raw UDP access plug-in
+ * udp.c: raw UDP input module
*****************************************************************************
- * Copyright (C) 2001, 2002 VideoLAN
- * $Id: udp.c,v 1.2 2002/08/07 00:29:36 sam Exp $
+ * Copyright (C) 2001-2005 the VideoLAN team
+ * Copyright (C) 2007 Remi Denis-Courmont
+ * $Id$
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
+ * Tristan Leteurtre <tooney@via.ecp.fr>
+ * Laurent Aimar <fenrir@via.ecp.fr>
+ * Jean-Paul Saman <jpsaman #_at_# m2x dot nl>
+ * Remi Denis-Courmont
+ *
+ * Reviewed: 23 October 2003, Jean-Paul Saman <jpsaman _at_ videolan _dot_ org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <errno.h>
-#include <fcntl.h>
-
-#include <vlc/vlc.h>
-#include <vlc/input.h>
-
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#elif defined( _MSC_VER ) && defined( _WIN32 )
-# include <io.h>
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
#endif
-#include "network.h"
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_access.h>
+#include <vlc_network.h>
+
+#define MTU 65535
/*****************************************************************************
- * Local prototypes
+ * Module descriptor
*****************************************************************************/
-static int Open ( vlc_object_t * );
+#define CACHING_TEXT N_("Caching value in ms")
+#define CACHING_LONGTEXT N_( \
+ "Caching value for UDP streams. This " \
+ "value should be set in milliseconds." )
+
+static int Open ( vlc_object_t * );
+static void Close( vlc_object_t * );
+
+vlc_module_begin ()
+ set_shortname( N_("UDP" ) )
+ set_description( N_("UDP input") )
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_ACCESS )
+
+ add_integer( "udp-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT,
+ CACHING_LONGTEXT, true )
+ change_safe()
+ add_obsolete_integer( "rtp-late" )
+ add_obsolete_bool( "udp-auto-mtu" )
+
+ set_capability( "access", 0 )
+ add_shortcut( "udp" )
+ add_shortcut( "udpstream" )
+ add_shortcut( "udp4" )
+ add_shortcut( "udp6" )
+
+ set_callbacks( Open, Close )
+vlc_module_end ()
/*****************************************************************************
- * Module descriptor
+ * Local prototypes
*****************************************************************************/
-vlc_module_begin();
- set_description( _("raw UDP access module") );
- set_capability( "access", 0 );
- add_shortcut( "udpstream" );
- add_shortcut( "udp4" );
- add_shortcut( "udp6" );
- set_callbacks( Open, __input_FDNetworkClose );
-vlc_module_end();
+#define RTP_HEADER_LEN 12
+
+static block_t *BlockUDP( access_t * );
+static int Control( access_t *, int, va_list );
/*****************************************************************************
* Open: open the socket
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
- input_thread_t * p_input = (input_thread_t *)p_this;
- input_socket_t * p_access_data;
- module_t * p_network;
- char * psz_network = "";
- char * psz_name = strdup(p_input->psz_name);
- char * psz_parser = psz_name;
- char * psz_server_addr = "";
- char * psz_server_port = "";
- char * psz_bind_addr = "";
- char * psz_bind_port = "";
- int i_bind_port = 0, i_server_port = 0;
- network_socket_t socket_desc;
-
- if( config_GetInt( p_input, "ipv4" ) )
- {
- psz_network = "ipv4";
- }
- if( config_GetInt( p_input, "ipv6" ) )
- {
- psz_network = "ipv6";
- }
+ access_t *p_access = (access_t*)p_this;
+
+ char *psz_name = strdup( p_access->psz_location );
+ char *psz_parser;
+ const char *psz_server_addr, *psz_bind_addr = "";
+ int i_bind_port, i_server_port = 0;
+ int fam = AF_UNSPEC;
+ int fd;
+
+ /* Set up p_access */
+ access_InitFields( p_access );
+ ACCESS_SET_CALLBACKS( NULL, BlockUDP, Control, NULL );
- if( *p_input->psz_access )
+ if (strlen (p_access->psz_access) > 0)
{
- /* Find out which shortcut was used */
- if( !strncmp( p_input->psz_access, "udp6", 5 ) )
+ switch (p_access->psz_access[strlen (p_access->psz_access) - 1])
{
- psz_network = "ipv6";
- }
- else if( !strncmp( p_input->psz_access, "udp4", 5 ) )
- {
- psz_network = "ipv4";
+ case '4':
+ fam = AF_INET;
+ break;
+
+ case '6':
+ fam = AF_INET6;
+ break;
}
}
+ i_bind_port = var_CreateGetInteger( p_access, "server-port" );
+
/* Parse psz_name syntax :
* [serveraddr[:serverport]][@[bindaddr]:[bindport]] */
-
- if( *psz_parser && *psz_parser != '@' )
+ psz_parser = strchr( psz_name, '@' );
+ if( psz_parser != NULL )
{
- /* Found server */
- psz_server_addr = psz_parser;
+ /* Found bind address and/or bind port */
+ *psz_parser++ = '\0';
+ psz_bind_addr = psz_parser;
- while( *psz_parser && *psz_parser != ':' && *psz_parser != '@' )
- {
- if( *psz_parser == '[' )
- {
- /* IPv6 address */
- while( *psz_parser && *psz_parser != ']' )
- {
- psz_parser++;
- }
- }
- psz_parser++;
- }
+ if( psz_bind_addr[0] == '[' )
+ /* skips bracket'd IPv6 address */
+ psz_parser = strchr( psz_parser, ']' );
- if( *psz_parser == ':' )
+ if( psz_parser != NULL )
{
- /* Found server port */
- *psz_parser = '\0'; /* Terminate server name */
- psz_parser++;
- psz_server_port = psz_parser;
-
- while( *psz_parser && *psz_parser != '@' )
+ psz_parser = strchr( psz_parser, ':' );
+ if( psz_parser != NULL )
{
- psz_parser++;
+ *psz_parser++ = '\0';
+ i_bind_port = atoi( psz_parser );
}
}
}
- if( *psz_parser == '@' )
- {
- /* Found bind address or bind port */
- *psz_parser = '\0'; /* Terminate server port or name if necessary */
- psz_parser++;
+ psz_server_addr = psz_name;
+ psz_parser = ( psz_server_addr[0] == '[' )
+ ? strchr( psz_name, ']' ) /* skips bracket'd IPv6 address */
+ : psz_name;
- if( *psz_parser && *psz_parser != ':' )
- {
- /* Found bind address */
- psz_bind_addr = psz_parser;
-
- while( *psz_parser && *psz_parser != ':' )
- {
- if( *psz_parser == '[' )
- {
- /* IPv6 address */
- while( *psz_parser && *psz_parser != ']' )
- {
- psz_parser++;
- }
- }
- psz_parser++;
- }
- }
-
- if( *psz_parser == ':' )
- {
- /* Found bind port */
- *psz_parser = '\0'; /* Terminate bind address if necessary */
- psz_parser++;
-
- psz_bind_port = psz_parser;
- }
- }
-
- /* Convert ports format */
- if( *psz_server_port )
+ if( psz_parser != NULL )
{
- i_server_port = strtol( psz_server_port, &psz_parser, 10 );
- if( *psz_parser )
+ psz_parser = strchr( psz_parser, ':' );
+ if( psz_parser != NULL )
{
- msg_Err( p_input, "cannot parse server port near %s", psz_parser );
- free(psz_name);
- return( -1 );
+ *psz_parser++ = '\0';
+ i_server_port = atoi( psz_parser );
}
}
- if( *psz_bind_port )
+ msg_Dbg( p_access, "opening server=%s:%d local=%s:%d",
+ psz_server_addr, i_server_port, psz_bind_addr, i_bind_port );
+
+ fd = net_OpenDgram( p_access, psz_bind_addr, i_bind_port,
+ psz_server_addr, i_server_port, fam, IPPROTO_UDP );
+ free (psz_name);
+ if( fd == -1 )
{
- i_bind_port = strtol( psz_bind_port, &psz_parser, 10 );
- if( *psz_parser )
- {
- msg_Err( p_input, "cannot parse bind port near %s", psz_parser );
- free(psz_name);
- return( -1 );
- }
+ msg_Err( p_access, "cannot open socket" );
+ return VLC_EGENERIC;
}
+ p_access->p_sys = (void *)(intptr_t)fd;
- p_input->pf_read = input_FDNetworkRead;
- p_input->pf_set_program = input_SetProgram;
- p_input->pf_set_area = NULL;
- p_input->pf_seek = NULL;
+ /* Update default_pts to a suitable value for udp access */
+ var_Create( p_access, "udp-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ return VLC_SUCCESS;
+}
- vlc_mutex_lock( &p_input->stream.stream_lock );
- p_input->stream.b_pace_control = 0;
- p_input->stream.b_seekable = 0;
- p_input->stream.p_selected_area->i_tell = 0;
- p_input->stream.i_method = INPUT_METHOD_NETWORK;
- vlc_mutex_unlock( &p_input->stream.stream_lock );
+/*****************************************************************************
+ * Close: free unused data structures
+ *****************************************************************************/
+static void Close( vlc_object_t *p_this )
+{
+ access_t *p_access = (access_t*)p_this;
- if( *psz_server_addr || i_server_port )
- {
- msg_Err( p_input, "this UDP syntax is deprecated; the server argument will be");
- msg_Err( p_input, "ignored (%s:%d). If you wanted to enter a multicast address",
- psz_server_addr, i_server_port);
- msg_Err( p_input, "or local port, type : %s:@%s:%d",
- *p_input->psz_access ? p_input->psz_access : "udp",
- psz_server_addr, i_server_port );
-
- i_server_port = 0;
- psz_server_addr = "";
- }
-
- msg_Dbg( p_input, "opening server=%s:%d local=%s:%d",
- psz_server_addr, i_server_port, psz_bind_addr, i_bind_port );
+ net_Close( (intptr_t)p_access->p_sys );
+}
+
+/*****************************************************************************
+ * Control:
+ *****************************************************************************/
+static int Control( access_t *p_access, int i_query, va_list args )
+{
+ bool *pb_bool;
+ int64_t *pi_64;
- /* Prepare the network_socket_t structure */
- socket_desc.i_type = NETWORK_UDP;
- socket_desc.psz_bind_addr = psz_bind_addr;
- socket_desc.i_bind_port = i_bind_port;
- socket_desc.psz_server_addr = psz_server_addr;
- socket_desc.i_server_port = i_server_port;
-
- /* Find an appropriate network module */
- p_input->p_private = (void*) &socket_desc;
- p_network = module_Need( p_input, "network", psz_network );
- free(psz_name);
- if( p_network == NULL )
+ switch( i_query )
{
- return( -1 );
+ /* */
+ case ACCESS_CAN_SEEK:
+ case ACCESS_CAN_FASTSEEK:
+ case ACCESS_CAN_PAUSE:
+ case ACCESS_CAN_CONTROL_PACE:
+ pb_bool = (bool*)va_arg( args, bool* );
+ *pb_bool = false;
+ break;
+ /* */
+ case ACCESS_GET_PTS_DELAY:
+ pi_64 = (int64_t*)va_arg( args, int64_t * );
+ *pi_64 = (int64_t)var_GetInteger(p_access,"udp-caching") * 1000;
+ break;
+
+ /* */
+ case ACCESS_SET_PAUSE_STATE:
+ case ACCESS_GET_TITLE_INFO:
+ case ACCESS_SET_TITLE:
+ case ACCESS_SET_SEEKPOINT:
+ case ACCESS_SET_PRIVATE_ID_STATE:
+ case ACCESS_GET_CONTENT_TYPE:
+ return VLC_EGENERIC;
+
+ default:
+ msg_Warn( p_access, "unimplemented query in control" );
+ return VLC_EGENERIC;
+
}
- module_Unneed( p_input, p_network );
-
- p_access_data = malloc( sizeof(input_socket_t) );
- p_input->p_access_data = (access_sys_t *)p_access_data;
+ return VLC_SUCCESS;
+}
- if( p_access_data == NULL )
+/*****************************************************************************
+ * BlockUDP:
+ *****************************************************************************/
+static block_t *BlockUDP( access_t *p_access )
+{
+ access_sys_t *p_sys = p_access->p_sys;
+ block_t *p_block;
+ ssize_t len;
+
+ if( p_access->info.b_eof )
+ return NULL;
+
+ /* Read data */
+ p_block = block_New( p_access, MTU );
+ len = net_Read( p_access, (intptr_t)p_sys, NULL,
+ p_block->p_buffer, MTU, false );
+ if( len < 0 )
{
- msg_Err( p_input, "out of memory" );
- return( -1 );
+ block_Release( p_block );
+ return NULL;
}
- p_access_data->i_handle = socket_desc.i_handle;
- p_input->i_mtu = socket_desc.i_mtu;
-
- return( 0 );
+ return block_Realloc( p_block, 0, len );
}
projects / vlc / blobdiff