Commit 0c0ca771 authored by Clément Stenac's avatar Clément Stenac

* Stream output now support IPv6 SAP announces

* Code cleanup in SAP
parent 206fe3c1
$Id: NEWS,v 1.53 2003/06/22 18:07:23 gbazin Exp $
$Id: NEWS,v 1.54 2003/06/23 11:41:25 zorglub Exp $
Changes between 0.5.3 and 0.6.0:
---------------------------------
......@@ -36,7 +36,7 @@ Stream output:
* New stream output scheme. It is now possible to build a chain of stream outputs allowing for instance to stream and display some content at the same time.
* The stream output now allows to transcode content on the fly.
* Fixed major bug that prevented streaming mpeg 1/2 video with pulldown content.
* SAP (Session Announcement Protocol) support.
* SAP/SDP announcing support. (both IPv4 and IPv6)
Miscellaneous:
* New reset option for the preferences
......@@ -44,6 +44,7 @@ Miscellaneous:
* New video chroma conversion module using ffmpeg
* Added a Gentoo ebuild to the distribution
* Added a new smaller subtitles font (now the default) + scripts to generate your own
* SAP/SDP IPv6 support
UNIX ports:
* Basic support for the X11 Xinerama extension.
......
......@@ -2,11 +2,9 @@
* announce.h : Session announcement
*****************************************************************************
* Copyright (C) 2002 VideoLAN
* $Id: announce.h,v 1.3 2003/06/12 11:37:48 zorglub Exp $
* $Id: announce.h,v 1.4 2003/06/23 11:41:26 zorglub Exp $
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
* Laurent Aimar <fenrir@via.ecp.fr>
* Eric Petit <titer@videolan.org>
* Authors: Clment Stenac <zorglub@via.ecp.fr>
*
* 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
......@@ -56,6 +54,8 @@ struct sap_session_t
unsigned int socket;
unsigned int sendnow;
struct sockaddr_in addr;
struct sockaddr_in6 addr6;
int i_ip_version;
};
......@@ -63,6 +63,6 @@ struct sap_session_t
/*****************************************************************************
* Prototypes
*****************************************************************************/
VLC_EXPORT( sap_session_t *, sout_SAPNew, ( sout_instance_t *,char * , char * , char * ) );
VLC_EXPORT( void, sout_SAPSend, ( sout_instance_t *,sap_session_t * ) );
VLC_EXPORT( sap_session_t *, sout_SAPNew, ( sout_instance_t *,char * , char * , char * ,int , char *) );
VLC_EXPORT( void, sout_SAPSend, ( sout_instance_t *,sap_session_t *) );
VLC_EXPORT( void, sout_SAPDelete, ( sout_instance_t *,sap_session_t * ) );
......@@ -2,7 +2,7 @@
* standard.c
*****************************************************************************
* Copyright (C) 2001, 2002 VideoLAN
* $Id: standard.c,v 1.4 2003/06/12 11:37:48 zorglub Exp $
* $Id: standard.c,v 1.5 2003/06/23 11:41:26 zorglub Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
......@@ -32,6 +32,8 @@
#include <vlc/sout.h>
#include <announce.h>
#define DEFAULT_IPV6_SCOPE "8"
/*****************************************************************************
* Exported prototypes
*****************************************************************************/
......@@ -69,12 +71,14 @@ static int Open( vlc_object_t *p_this )
sout_instance_t *p_sout = p_stream->p_sout;
sout_stream_sys_t *p_sys = malloc( sizeof( sout_stream_sys_t) );
char *psz_mux = sout_cfg_find_value( p_stream->p_cfg, "mux" );
char *psz_access = sout_cfg_find_value( p_stream->p_cfg, "access" );
char *psz_url = sout_cfg_find_value( p_stream->p_cfg, "url" );
char *psz_mux = sout_cfg_find_value( p_stream->p_cfg, "mux" );
char *psz_access = sout_cfg_find_value( p_stream->p_cfg, "access" );
char *psz_url = sout_cfg_find_value( p_stream->p_cfg, "url" );
char *psz_ipv = sout_cfg_find_value( p_stream->p_cfg, "sap_ipv" );
char *psz_v6_scope = sout_cfg_find_value( p_stream->p_cfg, "sap_v6scope");
sout_cfg_t *p_sap_cfg = sout_cfg_find( p_stream->p_cfg, "sap" );
char *psz_sap = NULL;
char *psz_port = "1234";
......@@ -83,9 +87,12 @@ static int Open( vlc_object_t *p_this )
sout_access_out_t *p_access;
sout_mux_t *p_mux;
p_sys->b_sap=0;
/* SAP is only valid for UDP or RTP streaming */
if( psz_access == NULL )
psz_access="udp";
if(p_sap_cfg && (strstr(psz_access,"udp") || strstr( psz_access , "rtp" )))
{
msg_Info( p_this, "SAP Enabled");
......@@ -99,6 +106,13 @@ static int Open( vlc_object_t *p_this )
psz_sap = strdup ( psz_url );
}
}
/* Get SAP IP version to use */
if(psz_ipv == NULL)
psz_ipv = "4";
if(psz_v6_scope == NULL)
psz_v6_scope= DEFAULT_IPV6_SCOPE;
msg_Dbg( p_this, "creating `%s/%s://%s'",
psz_access, psz_mux, psz_url );
......@@ -127,8 +141,8 @@ static int Open( vlc_object_t *p_this )
/* *** Create the SAP Session structure *** */
if(p_sys->b_sap)
{
msg_Dbg( p_sout , "Creating SAP" );
p_sap = sout_SAPNew( p_sout , psz_url , psz_port , psz_sap );
msg_Dbg( p_sout , "Creating SAP with IPv%i",atoi(psz_ipv) );
p_sap = sout_SAPNew( p_sout , psz_url , psz_port , psz_sap, atoi(psz_ipv), psz_v6_scope );
if(!p_sap)
{
msg_Err( p_sout,"Unable to initialize SAP. SAP disabled");
......@@ -163,7 +177,7 @@ static void Close( vlc_object_t * p_this )
sout_access_out_t *p_access = p_sys->p_mux->p_access;
if(p_sys -> b_sap)
sout_SAPDelete( p_this ,p_sys->p_sap );
sout_SAPDelete( (sout_instance_t *)p_this ,p_sys->p_sap );
sout_MuxDelete( p_sys->p_mux );
sout_AccessOutDelete( p_access );
......
......@@ -28,6 +28,8 @@
#include <stdio.h> /* sprintf() */
#include <string.h> /* strerror() */
#include <unistd.h>
#include <vlc/vlc.h>
#include <vlc/sout.h>
......@@ -36,59 +38,163 @@
#include <announce.h>
#include <network.h>
#define SAP_ADDR "224.2.127.254" /* Standard port and address for SAP */
#define SAP_IPV4_ADDR "224.2.127.254" /* Standard port and address for SAP */
#define SAP_PORT 9875
#define SAP_IPV6_ADDR_1 "FF0"
#define SAP_IPV6_ADDR_2 "::2:7FFE"
/*****************************************************************************
* sout_SAPNew: Creates a SAP Session
*****************************************************************************/
sap_session_t * sout_SAPNew ( sout_instance_t *p_sout , char * psz_url_arg , char *psz_port_arg , char * psz_name_arg )
sap_session_t * sout_SAPNew ( sout_instance_t *p_sout ,
char * psz_url_arg , char *psz_port_arg ,
char * psz_name_arg, int ip_version,
char * psz_v6_scope )
{
sap_session_t *p_new;
module_t *p_network;
network_socket_t socket_desc;
char psz_network[12];
struct sockaddr_in addr;
p_new = (sap_session_t *)malloc( sizeof ( sap_session_t ) ) ;
sap_session_t *p_new; /* The SAP structure */
module_t *p_network; /* Network module */
network_socket_t socket_desc; /* Socket descriptor */
char psz_network[6]; /* IPv4 or IPv6 */
struct sockaddr_in addr; /* IPv4 connection structure */
struct sockaddr_in6 addr6;/* IPv6 connection structure */
char *sap_ipv6_addr=NULL; /* IPv6 built address */
void *net_ipv6_addr=NULL; /* IPv6 address in net-format */
int i_status=0; /* Problems on system calls*/
/* Allocate the SAP structure */
p_new = (sap_session_t *)malloc( sizeof ( sap_session_t ) ) ;
if ( !p_new )
{
msg_Err( p_sout, "No memory left" );
return NULL;
}
/* Fill the information in the structure */
sprintf ( p_new->psz_url , "%s" , psz_url_arg );
sprintf ( p_new->psz_name , "%s" , psz_name_arg );
/* Port is not implemented in sout */
sprintf ( p_new->psz_port, "%s" , psz_port_arg );
if ( !p_new )
return NULL;
p_new->i_ip_version = ip_version;
/* Only "6" triggers IPv6. IPv4 is default */
if(ip_version != 6)
{
msg_Dbg( p_sout , "Creating IPv4 SAP socket" );
/* Fill the socket descriptor */
socket_desc.i_type = NETWORK_UDP;
socket_desc.psz_bind_addr = "";
socket_desc.i_bind_port = 0;
socket_desc.psz_server_addr = SAP_IPV4_ADDR;
socket_desc.i_server_port = SAP_PORT;
socket_desc.i_handle = 0;
/* Call the network module */
sprintf ( psz_network, "ipv4" );
p_sout->p_private=(void*) &socket_desc;
if( !( p_network = module_Need( p_sout, "network", psz_network ) ) )
{
msg_Warn( p_sout, "failed to open a connection (udp)" );
}
module_Unneed( p_sout, p_network );
p_new->socket = socket_desc.i_handle;
if(p_new->socket <= 0 )
{
msg_Warn( p_sout, "Unable to initialize SAP" );
return NULL;
}
sprintf ( p_new->psz_url , "%s" , psz_url_arg );
sprintf ( p_new->psz_name , "%s" , psz_name_arg );
sprintf ( p_new->psz_port, "%s" , psz_port_arg ); /* Not implemented in SO */
/* Fill the sockaddr_in structure */
memset( &addr , 0 , sizeof(addr) );
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr(SAP_IPV4_ADDR);
addr.sin_port = htons( SAP_PORT );
p_new->addr = addr;
}
else
{
msg_Dbg(p_sout , "Creating IPv6 SAP socket with scope %s"
, psz_v6_scope );
/* Initialize and build the IPv6 address to broadcast to */
sap_ipv6_addr = (char *)malloc(28*sizeof(char));
if ( !sap_ipv6_addr )
{
msg_Err( p_sout, "No memory left" );
return NULL;
}
sprintf(sap_ipv6_addr,"%s%c%s",
SAP_IPV6_ADDR_1,
psz_v6_scope[0],
SAP_IPV6_ADDR_2);
/* Convert it to network format */
net_ipv6_addr = (struct in6_addr *)malloc( sizeof(struct in6_addr) );
if ( !net_ipv6_addr )
{
msg_Err( p_sout, "No memory left" );
return NULL;
}
msg_Dbg (p_sout , "Creating SAP Socket" );
i_status = inet_pton(AF_INET6,sap_ipv6_addr,net_ipv6_addr);
if(i_status < 0 )
{
msg_Warn(p_sout,"Unable to convert address to network format");
return NULL;
}
else if(i_status == 0)
{
msg_Warn(p_sout,"Adresse de diffusion SAP invalide");
return NULL;
}
/* Fill the socket descriptor */
socket_desc.i_type = NETWORK_UDP;
socket_desc.psz_bind_addr = "";
socket_desc.psz_bind_addr = "";
socket_desc.i_bind_port = 0;
socket_desc.psz_server_addr = SAP_ADDR;
socket_desc.psz_server_addr = sap_ipv6_addr;
socket_desc.i_server_port = SAP_PORT;
socket_desc.i_handle = 0;
sprintf ( psz_network, "ipv6" );
sprintf ( psz_network, "ipv4" );
/* Call the network module */
p_sout->p_private=(void*) &socket_desc;
if( !( p_network = module_Need( p_sout, "network", psz_network ) ) )
{
msg_Warn( p_sout, "failed to open a connection (udp)" );
}
module_Unneed( p_sout, p_network );
p_new->socket = socket_desc.i_handle;
memset( &addr , 0 , sizeof(addr) );
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr(SAP_ADDR);
addr.sin_port = htons( SAP_PORT );
p_new->addr = addr;
return(p_new);
if(p_new->socket <= 0 )
{
msg_Warn( p_sout, "Unable to initialize SAP" );
return NULL;
}
/* Fill the sockaddr_in structure */
memset( &addr6 , 0 , sizeof(addr6) );
addr6.sin6_family = AF_INET6;
memcpy( &addr6.sin6_addr.s6_addr , net_ipv6_addr ,
sizeof(addr6.sin6_addr.s6_addr) );
addr6.sin6_port = htons( SAP_PORT );
p_new->addr6 = addr6;
/* Free what we allocated */
if( sap_ipv6_addr ) free(sap_ipv6_addr);
if( net_ipv6_addr ) free(net_ipv6_addr);
}
msg_Dbg (p_sout,"SAP initialization complete");
return(p_new);
}
/*****************************************************************************
......@@ -98,49 +204,54 @@ void sout_SAPDelete( sout_instance_t *p_sout , sap_session_t * p_this )
{
if( close(p_this->socket) )
msg_Err ( p_sout, "Unable to close SAP socket");
if( p_this ) free(p_this);
if( p_this ) free( p_this );
}
/*****************************************************************************
* sout_SAPSend: Sends a SAP packet
*****************************************************************************/
void sout_SAPSend( sout_instance_t *p_sout, sap_session_t * p_this )
{
char *sap_head;
char sap_msg[1000];
char *sap_send;
char *payload_type="application/sdp";
int i_send_result;
int i;
int i_header_size;
int i_msg_size;
int i_size;
void sout_SAPSend( sout_instance_t *p_sout, sap_session_t * p_this)
{
char *sap_head; /* SAP header */
char sap_msg[1000]; /* SDP content */
char *sap_send; /* What we send */
char *payload_type="application/sdp";
int i_send_result=0; /* Result of send */
int i;
int i_header_size; /* SAP header size */
int i_msg_size; /* SDP content size */
int i_size; /* Total size */
/* We send a packet every 24 calls to the function */
if( p_this->sendnow == 24 )
{
i_header_size = 9 + strlen( payload_type );
sap_head = ( char * )malloc( i_header_size * sizeof( char ) );
i_header_size = 9 + strlen( payload_type );
sap_head = ( char * )malloc( i_header_size * sizeof( char ) );
if( ! sap_head )
{
msg_Err( p_sout , "No memory left");
return;
}
if( ! sap_head )
{
msg_Warn( p_sout , "No memory left");
return;
}
sap_head[0]=0x20; /* Means IPv4, not encrypted, not compressed */
sap_head[1]=0x00; /* No authentification */
sap_head[2]=0x42; /* Version */
sap_head[3]=0x12; /* Version */
/* Create the SAP headers */
sap_head[0]=0x20; /* Means IPv4, not encrypted, not compressed */
sap_head[1]=0x00; /* No authentification */
sap_head[2]=0x42; /* Version */
sap_head[3]=0x12; /* Version */
sap_head[4]=0x01; /* Source IP FIXME: we should get the real address */
sap_head[5]=0x02; /* idem */
sap_head[6]=0x03; /* idem */
sap_head[7]=0x04; /* idem */
sap_head[4]=0x01; /* Source IP FIXME: we should get the real address */
sap_head[5]=0x02; /* idem */
sap_head[6]=0x03; /* idem */
sap_head[7]=0x04; /* idem */
strncpy( sap_head+8 , payload_type , 15 );
sap_head[ i_header_size-1 ] = '\0';
strncpy( sap_head+8 , payload_type , 15 );
sap_head[ i_header_size-1 ] = '\0';
/* Do not add spaces at beginning of the lines ! */
/* Create the SDP content */
/* Do not add spaces at beginning of the lines ! */
sprintf(sap_msg,"v=0\n\
o=VideoLAN 3247692199 3247895918 IN IP4 VideoLAN\n\
s=%s\n\
......@@ -150,40 +261,58 @@ m=audio %s udp 14\n\
c=IN IP4 %s/15\n\
a=type:test\n", p_this->psz_name , p_this->psz_port , p_this->psz_url );
i_msg_size = strlen( sap_msg );
i_size = i_msg_size + i_header_size;
i_msg_size = strlen( sap_msg );
i_size = i_msg_size + i_header_size;
sap_send = ( char* )malloc( i_size*sizeof(char) );
if(! sap_send)
{
msg_Err( p_sout , "No memory left") ;
return;
}
/* Create the message */
sap_send = ( char* )malloc( i_size*sizeof(char) );
if(! sap_send)
{
msg_Err( p_sout , "No memory left") ;
return;
}
for(i=0 ; i<i_header_size ; i++)
{
for(i=0 ; i<i_header_size ; i++)
{
sap_send[i] = sap_head[i];
}
for( ; i<i_size; i++)
{
sap_send[i] = sap_msg[i-i_header_size];
}
for( ; i<i_size; i++)
{
sap_send[i] = sap_msg[i-i_header_size];
}
/* What we send is the SAP header and the SDP packet */
if(i_size<1024) /* We mustn't send packets larger than 1024B */
{
if( p_this->i_ip_version == 6)
{
i_send_result = sendto( p_this->socket , sap_send ,
i_size , 0 ,
(struct sockaddr *)&p_this->addr6,
sizeof(p_this->addr6) );
}
else
{
i_send_result = sendto( p_this->socket , sap_send ,
i_size , 0 ,
(struct sockaddr *)&p_this->addr ,
sizeof(p_this->addr) );
}
}
if(i_size<1024) /* We mustn't send packets larger than 1024B */
i_send_result = sendto( p_this->socket , sap_send , i_size , 0 , (struct sockaddr *)&p_this->addr , sizeof(p_this->addr) );
if(i_send_result == -1)
{
msg_Warn(p_sout , "SAP Send failed on socket %i. " , p_this->socket );
if(i_send_result == -1)
{
msg_Warn(p_sout , "SAP Send failed on socket %i. " ,
p_this->socket );
perror("sendto");
}
p_this->sendnow = 0;
if(sap_send) free(sap_send);
if(sap_head) free(sap_head);
}
p_this->sendnow = 0;
/* Free what we allocated */
if(sap_send) free(sap_send);
if(sap_head) free(sap_head);
}
p_this->sendnow++;
}
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