/*****************************************************************************
* udp.c
*****************************************************************************
- * Copyright (C) 2001-2005 VideoLAN
+ * Copyright (C) 2001-2007 the VideoLAN team
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
* 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc/vlc.h>
+#include <vlc_plugin.h>
+
#include <sys/types.h>
#include <sys/stat.h>
-#include <string.h>
#include <errno.h>
#include <fcntl.h>
+#include <assert.h>
-#include <vlc/vlc.h>
-#include <vlc/sout.h>
+#include <vlc_sout.h>
+#include <vlc_block.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#ifdef WIN32
# include <winsock2.h>
# include <ws2tcpip.h>
-# ifndef IN_MULTICAST
-# define IN_MULTICAST(a) IN_CLASSD(a)
-# endif
#else
# include <sys/socket.h>
#endif
-#include "network.h"
+#include <vlc_network.h>
+#define MAX_EMPTY_BLOCKS 200
/*****************************************************************************
* Module descriptor
#define CACHING_TEXT N_("Caching value (ms)")
#define CACHING_LONGTEXT N_( \
- "Allows you to modify the default caching value for UDP streams. This " \
- "value should be set in millisecond units." )
-
-#define TTL_TEXT N_("Time To Live")
-#define TTL_LONGTEXT N_("Allows you to define the time to live of the " \
- "outgoing stream.")
+ "Default caching value for outbound UDP streams. This " \
+ "value should be set in milliseconds." )
#define GROUP_TEXT N_("Group packets")
#define GROUP_LONGTEXT N_("Packets can be sent one by one at the right time " \
- "or by groups. This allows you to give the number " \
+ "or by groups. You can choose the number " \
"of packets that will be sent at a time. It " \
"helps reducing the scheduling load on " \
"heavily-loaded systems." )
-#define LATE_TEXT N_("Late delay (ms)" )
-#define LATE_LONGTEXT N_("Late packets are dropped. This allows you to give " \
- "the time (in milliseconds) a packet is allowed to be" \
- " late.")
-#define RAW_TEXT N_("Raw write")
-#define RAW_LONGTEXT N_("If you enable this option, packets will be sent " \
- "directly, without trying to fill the MTU (ie, " \
- "without trying to make the biggest possible packets " \
- "in order to improve streaming)." )
vlc_module_begin();
- set_description( _("UDP stream output") );
- set_shortname( N_( "UDP" ) );
+ set_description( N_("UDP stream output") );
+ set_shortname( "UDP" );
set_category( CAT_SOUT );
set_subcategory( SUBCAT_SOUT_ACO );
- add_integer( SOUT_CFG_PREFIX "caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
- add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL,TTL_TEXT, TTL_LONGTEXT,
- VLC_TRUE );
+ add_integer( SOUT_CFG_PREFIX "caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, true );
add_integer( SOUT_CFG_PREFIX "group", 1, NULL, GROUP_TEXT, GROUP_LONGTEXT,
- VLC_TRUE );
- add_integer( SOUT_CFG_PREFIX "late", 0, NULL, LATE_TEXT, LATE_LONGTEXT,
- VLC_TRUE );
- add_bool( SOUT_CFG_PREFIX "raw", 0, NULL, RAW_TEXT, RAW_LONGTEXT,
- VLC_TRUE );
+ true );
+ add_obsolete_integer( SOUT_CFG_PREFIX "late" );
+ add_obsolete_bool( SOUT_CFG_PREFIX "raw" );
set_capability( "sout access", 100 );
add_shortcut( "udp" );
- add_shortcut( "rtp" ); // Will work only with ts muxer
set_callbacks( Open, Close );
vlc_module_end();
* Exported prototypes
*****************************************************************************/
-static const char *ppsz_sout_options[] = {
+static const char *const ppsz_sout_options[] = {
"caching",
- "ttl",
"group",
- "late",
- "raw",
NULL
};
-static int Write ( sout_access_out_t *, block_t * );
-static int WriteRaw( sout_access_out_t *, block_t * );
+/* Options handled by the libvlc network core */
+static const char *const ppsz_core_options[] = {
+ "dscp",
+ "ttl",
+ "miface",
+ "miface-addr",
+ NULL
+};
+
+static ssize_t Write ( sout_access_out_t *, block_t * );
static int Seek ( sout_access_out_t *, off_t );
static void ThreadWrite( vlc_object_t * );
static block_t *NewUDPPacket( sout_access_out_t *, mtime_t );
+static const char *MakeRandMulticast (int family, char *buf, size_t buflen);
typedef struct sout_access_thread_t
{
int i_handle;
int64_t i_caching;
- int64_t i_late;
int i_group;
+ block_fifo_t *p_empty_blocks;
} sout_access_thread_t;
struct sout_access_out_sys_t
{
- int b_rtpts; // 1 if add rtp/ts header
- uint16_t i_sequence_number;
- uint32_t i_ssrc;
-
int i_mtu;
+ bool b_mtu_warning;
block_t *p_buffer;
sout_access_thread_t *p_thread;
- vlc_bool_t b_mtu_warning;
};
#define DEFAULT_PORT 1234
sout_access_out_t *p_access = (sout_access_out_t*)p_this;
sout_access_out_sys_t *p_sys;
- char *psz_parser;
- char *psz_dst_addr;
+ char *psz_dst_addr = NULL;
int i_dst_port;
- module_t *p_network;
- network_socket_t socket_desc;
+ int i_handle;
- vlc_value_t val;
+ config_ChainParse( p_access, SOUT_CFG_PREFIX,
+ ppsz_sout_options, p_access->p_cfg );
+ config_ChainParse( p_access, "",
+ ppsz_core_options, p_access->p_cfg );
- sout_CfgParse( p_access, SOUT_CFG_PREFIX,
- ppsz_sout_options, p_access->p_cfg );
-
- if( !( p_sys = malloc( sizeof( sout_access_out_sys_t ) ) ) )
+ if (var_Create (p_access, "dst-port", VLC_VAR_INTEGER)
+ || var_Create (p_access, "src-port", VLC_VAR_INTEGER)
+ || var_Create (p_access, "dst-addr", VLC_VAR_STRING)
+ || var_Create (p_access, "src-addr", VLC_VAR_STRING))
{
- msg_Err( p_access, "not enough memory" );
- return VLC_EGENERIC;
+ return VLC_ENOMEM;
}
- memset( p_sys, 0, sizeof(sout_access_out_sys_t) );
- p_access->p_sys = p_sys;
- if( p_access->psz_access != NULL &&
- !strcmp( p_access->psz_access, "rtp" ) )
+ if( !( p_sys = calloc ( 1, sizeof( sout_access_out_sys_t ) ) ) )
{
- msg_Warn( p_access, "be careful that rtp output only works with ts "
- "payload (not an error)" );
- p_sys->b_rtpts = 1;
- }
- else
- {
- p_sys->b_rtpts = 0;
+ msg_Err( p_access, "not enough memory" );
+ return VLC_ENOMEM;
}
+ p_access->p_sys = p_sys;
- psz_parser = strdup( p_access->psz_name );
+ i_dst_port = DEFAULT_PORT;
+ char *psz_parser = psz_dst_addr = strdup( p_access->psz_path );
- psz_dst_addr = psz_parser;
- i_dst_port = 0;
+ if (psz_parser[0] == '[')
+ psz_parser = strchr (psz_parser, ']');
- if ( *psz_parser == '[' )
- {
- while( *psz_parser && *psz_parser != ']' )
- {
- psz_parser++;
- }
- }
- while( *psz_parser && *psz_parser != ':' )
- {
- psz_parser++;
- }
- if( *psz_parser == ':' )
- {
- *psz_parser = '\0';
- psz_parser++;
- i_dst_port = atoi( psz_parser );
- }
- if( i_dst_port <= 0 )
+ psz_parser = strchr (psz_parser ?: psz_dst_addr, ':');
+ if (psz_parser != NULL)
{
- i_dst_port = DEFAULT_PORT;
+ *psz_parser++ = '\0';
+ i_dst_port = atoi (psz_parser);
}
p_sys->p_thread =
if( !p_sys->p_thread )
{
msg_Err( p_access, "out of memory" );
- return VLC_EGENERIC;
+ free (p_sys);
+ free (psz_dst_addr);
+ return VLC_ENOMEM;
}
+ vlc_object_attach( p_sys->p_thread, p_access );
p_sys->p_thread->p_sout = p_access->p_sout;
p_sys->p_thread->b_die = 0;
p_sys->p_thread->b_error= 0;
- p_sys->p_thread->p_fifo = block_FifoNew( p_access );
-
- socket_desc.psz_server_addr = psz_dst_addr;
- socket_desc.i_server_port = i_dst_port;
- socket_desc.psz_bind_addr = "";
- socket_desc.i_bind_port = 0;
+ p_sys->p_thread->p_fifo = block_FifoNew();
+ p_sys->p_thread->p_empty_blocks = block_FifoNew();
- var_Get( p_access, SOUT_CFG_PREFIX "ttl", &val );
- socket_desc.i_ttl = val.i_int;
+ i_handle = net_ConnectDgram( p_this, psz_dst_addr, i_dst_port, -1,
+ IPPROTO_UDP );
+ free (psz_dst_addr);
- p_sys->p_thread->p_private = (void*)&socket_desc;
- if( !( p_network = module_Need( p_sys->p_thread, "network", NULL, 0 ) ) )
+ if( i_handle == -1 )
{
- msg_Err( p_access, "failed to open a connection (udp)" );
- return VLC_EGENERIC;
+ msg_Err( p_access, "failed to create raw UDP socket" );
+ vlc_object_release (p_sys->p_thread);
+ free (p_sys);
+ return VLC_EGENERIC;
}
- module_Unneed( p_sys->p_thread, p_network );
-
- p_sys->p_thread->i_handle = socket_desc.i_handle;
+ else
+ {
+ char addr[NI_MAXNUMERICHOST];
+ int port;
- var_Get( p_access, SOUT_CFG_PREFIX "caching", &val );
- p_sys->p_thread->i_caching = (int64_t)val.i_int * 1000;
+ if (net_GetSockAddress (i_handle, addr, &port) == 0)
+ {
+ msg_Dbg (p_access, "source: %s port %d", addr, port);
+ var_SetString (p_access, "src-addr", addr);
+ var_SetInteger (p_access, "src-port", port);
+ }
- var_Get( p_access, SOUT_CFG_PREFIX "group", &val );
- p_sys->p_thread->i_group = val.i_int;
+ if (net_GetPeerAddress (i_handle, addr, &port) == 0)
+ {
+ msg_Dbg (p_access, "destination: %s port %d", addr, port);
+ var_SetString (p_access, "dst-addr", addr);
+ var_SetInteger (p_access, "dst-port", port);
+ }
+ }
+ p_sys->p_thread->i_handle = i_handle;
+ shutdown( i_handle, SHUT_RD );
- var_Get( p_access, SOUT_CFG_PREFIX "late", &val );
- p_sys->p_thread->i_late = (int64_t)val.i_int * 1000;
+ p_sys->p_thread->i_caching =
+ (int64_t)1000 * var_GetInteger( p_access, SOUT_CFG_PREFIX "caching");
+ p_sys->p_thread->i_group =
+ var_GetInteger( p_access, SOUT_CFG_PREFIX "group" );
- p_sys->i_mtu = socket_desc.i_mtu;
+ p_sys->i_mtu = var_CreateGetInteger( p_this, "mtu" );
+ p_sys->p_buffer = NULL;
-#ifdef WIN32
if( vlc_thread_create( p_sys->p_thread, "sout write thread", ThreadWrite,
- VLC_THREAD_PRIORITY_HIGHEST, VLC_FALSE ) )
-#else
- if( vlc_thread_create( p_sys->p_thread, "sout write thread", ThreadWrite,
- VLC_THREAD_PRIORITY_OUTPUT, VLC_FALSE ) )
-#endif
+ VLC_THREAD_PRIORITY_HIGHEST, false ) )
{
msg_Err( p_access->p_sout, "cannot spawn sout access thread" );
- vlc_object_destroy( p_sys->p_thread );
+ net_Close (i_handle);
+ vlc_object_release( p_sys->p_thread );
+ free (p_sys);
return VLC_EGENERIC;
}
- srand( (uint32_t)mdate());
- p_sys->p_buffer = NULL;
- p_sys->i_sequence_number = rand()&0xffff;
- p_sys->i_ssrc = rand()&0xffffffff;
-
- var_Get( p_access, SOUT_CFG_PREFIX "raw", &val );
- if( val.b_bool ) p_access->pf_write = WriteRaw;
- else p_access->pf_write = Write;
-
+ p_access->pf_write = Write;
p_access->pf_seek = Seek;
- msg_Dbg( p_access, "udp access output opened(%s:%d)",
- psz_dst_addr, i_dst_port );
-
- free( psz_dst_addr );
-
/* update p_sout->i_out_pace_nocontrol */
p_access->p_sout->i_out_pace_nocontrol++;
sout_access_out_sys_t *p_sys = p_access->p_sys;
int i;
- p_sys->p_thread->b_die = 1;
+ vlc_object_kill( p_sys->p_thread );
+ block_FifoWake( p_sys->p_thread->p_fifo );
+
for( i = 0; i < 10; i++ )
{
block_t *p_dummy = block_New( p_access, p_sys->i_mtu );
p_dummy->i_dts = 0;
p_dummy->i_pts = 0;
p_dummy->i_length = 0;
+ memset( p_dummy->p_buffer, 0, p_dummy->i_buffer );
block_FifoPut( p_sys->p_thread->p_fifo, p_dummy );
}
vlc_thread_join( p_sys->p_thread );
block_FifoRelease( p_sys->p_thread->p_fifo );
+ block_FifoRelease( p_sys->p_thread->p_empty_blocks );
if( p_sys->p_buffer ) block_Release( p_sys->p_buffer );
net_Close( p_sys->p_thread->i_handle );
+ vlc_object_detach( p_sys->p_thread );
+ vlc_object_release( p_sys->p_thread );
/* update p_sout->i_out_pace_nocontrol */
p_access->p_sout->i_out_pace_nocontrol--;
- msg_Dbg( p_access, "udp access output closed" );
+ msg_Dbg( p_access, "UDP access output closed" );
free( p_sys );
}
/*****************************************************************************
* Write: standard write on a file descriptor.
*****************************************************************************/
-static int Write( sout_access_out_t *p_access, block_t *p_buffer )
+static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
{
sout_access_out_sys_t *p_sys = p_access->p_sys;
+ int i_len = 0;
while( p_buffer )
{
block_t *p_next;
int i_packets = 0;
+ mtime_t now = mdate();
if( !p_sys->b_mtu_warning && p_buffer->i_buffer > p_sys->i_mtu )
{
msg_Warn( p_access, "packet size > MTU, you should probably "
"increase the MTU" );
- p_sys->b_mtu_warning = VLC_TRUE;
+ p_sys->b_mtu_warning = true;
}
/* Check if there is enough space in the buffer */
if( p_sys->p_buffer &&
p_sys->p_buffer->i_buffer + p_buffer->i_buffer > p_sys->i_mtu )
{
+ if( p_sys->p_buffer->i_dts + p_sys->p_thread->i_caching < now )
+ {
+ msg_Dbg( p_access, "late packet for UDP input (%"PRId64 ")",
+ now - p_sys->p_buffer->i_dts
+ - p_sys->p_thread->i_caching );
+ }
block_FifoPut( p_sys->p_thread->p_fifo, p_sys->p_buffer );
p_sys->p_buffer = NULL;
}
+ i_len += p_buffer->i_buffer;
while( p_buffer->i_buffer )
{
- int i_write = __MIN( p_buffer->i_buffer, p_sys->i_mtu );
+ int i_payload_size = p_sys->i_mtu;
+
+ int i_write = __MIN( p_buffer->i_buffer, i_payload_size );
i_packets++;
if( p_sys->p_buffer->i_buffer == p_sys->i_mtu || i_packets > 1 )
{
/* Flush */
+ if( p_sys->p_buffer->i_dts + p_sys->p_thread->i_caching < now )
+ {
+ msg_Dbg( p_access, "late packet for udp input (%"PRId64 ")",
+ mdate() - p_sys->p_buffer->i_dts
+ - p_sys->p_thread->i_caching );
+ }
block_FifoPut( p_sys->p_thread->p_fifo, p_sys->p_buffer );
p_sys->p_buffer = NULL;
}
p_buffer = p_next;
}
- return( p_sys->p_thread->b_error ? -1 : 0 );
-}
-
-/*****************************************************************************
- * WriteRaw: write p_buffer without trying to fill mtu
- *****************************************************************************/
-static int WriteRaw( sout_access_out_t *p_access, block_t *p_buffer )
-{
- sout_access_out_sys_t *p_sys = p_access->p_sys;
-
- block_FifoPut( p_sys->p_thread->p_fifo, p_buffer );
-
- return( p_sys->p_thread->b_error ? -1 : 0 );
+ return( p_sys->p_thread->b_error ? -1 : i_len );
}
/*****************************************************************************
sout_access_out_sys_t *p_sys = p_access->p_sys;
block_t *p_buffer;
- p_buffer = block_New( p_access->p_sout, p_sys->i_mtu );
- p_buffer->i_dts = i_dts;
- p_buffer->i_buffer = 0;
-
- if( p_sys->b_rtpts )
+ while ( block_FifoCount( p_sys->p_thread->p_empty_blocks ) > MAX_EMPTY_BLOCKS )
{
- mtime_t i_timestamp = p_buffer->i_dts * 9 / 100;
-
- /* add rtp/ts header */
- p_buffer->p_buffer[0] = 0x80;
- p_buffer->p_buffer[1] = 0x21; // mpeg2-ts
-
- p_buffer->p_buffer[2] = ( p_sys->i_sequence_number >> 8 )&0xff;
- p_buffer->p_buffer[3] = p_sys->i_sequence_number&0xff;
- p_sys->i_sequence_number++;
-
- p_buffer->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
- p_buffer->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
- p_buffer->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
- p_buffer->p_buffer[7] = i_timestamp&0xff;
-
- p_buffer->p_buffer[ 8] = ( p_sys->i_ssrc >> 24 )&0xff;
- p_buffer->p_buffer[ 9] = ( p_sys->i_ssrc >> 16 )&0xff;
- p_buffer->p_buffer[10] = ( p_sys->i_ssrc >> 8 )&0xff;
- p_buffer->p_buffer[11] = p_sys->i_ssrc&0xff;
+ p_buffer = block_FifoGet( p_sys->p_thread->p_empty_blocks );
+ block_Release( p_buffer );
+ }
- p_buffer->i_buffer = 12;
+ if( block_FifoCount( p_sys->p_thread->p_empty_blocks ) == 0 )
+ {
+ p_buffer = block_New( p_access->p_sout, p_sys->i_mtu );
}
+ else
+ {
+ p_buffer = block_FifoGet(p_sys->p_thread->p_empty_blocks );
+ p_buffer->i_flags = 0;
+ p_buffer = block_Realloc( p_buffer, 0, p_sys->i_mtu );
+ }
+
+ p_buffer->i_dts = i_dts;
+ p_buffer->i_buffer = 0;
return p_buffer;
}
{
block_t *p_pk;
mtime_t i_date, i_sent;
-
+#if 0
+ if( (i++ % 1000)==0 ) {
+ int i = 0;
+ int j = 0;
+ block_t *p_tmp = p_thread->p_empty_blocks->p_first;
+ while( p_tmp ) { p_tmp = p_tmp->p_next; i++;}
+ p_tmp = p_thread->p_fifo->p_first;
+ while( p_tmp ) { p_tmp = p_tmp->p_next; j++;}
+ msg_Dbg( p_thread, "fifo depth: %d/%d, empty blocks: %d/%d",
+ p_thread->p_fifo->i_depth, j,p_thread->p_empty_blocks->i_depth,i );
+ }
+#endif
p_pk = block_FifoGet( p_thread->p_fifo );
+ if( p_pk == NULL )
+ continue; /* forced wake-up */
i_date = p_thread->i_caching + p_pk->i_dts;
if( i_date_last > 0 )
if( i_date - i_date_last > 2000000 )
{
if( !i_dropped_packets )
- msg_Dbg( p_thread, "mmh, hole ("I64Fd" > 2s) -> drop",
+ msg_Dbg( p_thread, "mmh, hole (%"PRId64" > 2s) -> drop",
i_date - i_date_last );
- block_Release( p_pk );
- i_date_last = i_date;
- i_dropped_packets++;
- continue;
- }
- else if( i_date - i_date_last < -15000 )
- {
- if( !i_dropped_packets )
- msg_Dbg( p_thread, "mmh, packets in the past ("I64Fd")"
- " -> drop", i_date - i_date_last );
+ block_FifoPut( p_thread->p_empty_blocks, p_pk );
- block_Release( p_pk );
i_date_last = i_date;
i_dropped_packets++;
continue;
}
- }
-
- i_sent = mdate();
- if( p_thread->i_late > 0 && i_sent > i_date + p_thread->i_late )
- {
- if( !i_dropped_packets )
+ else if( i_date - i_date_last < -1000 )
{
- msg_Dbg( p_thread, "late packet to send (" I64Fd ") -> drop",
- i_sent - i_date );
+ if( !i_dropped_packets )
+ msg_Dbg( p_thread, "mmh, packets in the past (%"PRId64")",
+ i_date_last - i_date );
}
- block_Release( p_pk );
- i_date_last = i_date;
- i_dropped_packets++;
- continue;
}
i_to_send--;
- if ( !i_to_send || (p_pk->i_flags & BLOCK_FLAG_CLOCK) )
+ if( !i_to_send || (p_pk->i_flags & BLOCK_FLAG_CLOCK) )
{
mwait( i_date );
i_to_send = p_thread->i_group;
}
- send( p_thread->i_handle, p_pk->p_buffer, p_pk->i_buffer, 0 );
+ ssize_t val = send( p_thread->i_handle, p_pk->p_buffer,
+ p_pk->i_buffer, 0 );
+ if (val == -1)
+ {
+ msg_Warn( p_thread, "send error: %m" );
+ }
if( i_dropped_packets )
{
i_sent = mdate();
if ( i_sent > i_date + 20000 )
{
- msg_Dbg( p_thread, "packet has been sent too late (" I64Fd ")",
+ msg_Dbg( p_thread, "packet has been sent too late (%"PRId64 ")",
i_sent - i_date );
}
#endif
- block_Release( p_pk );
+ block_FifoPut( p_thread->p_empty_blocks, p_pk );
+
i_date_last = i_date;
}
}
projects / vlc / blobdiff