2 * Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
3 * Copyright (C) <2009> Jarkko Palviainen <jarkko.palviainen@sesca.com>
4 * Copyright (C) <2012> Collabora Ltd.
5 * Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
24 * SECTION:element-multiudpsink
25 * @see_also: udpsink, multifdsink
27 * multiudpsink is a network sink that sends UDP packets to multiple
29 * It can be combined with rtp payload encoders to implement RTP streaming.
32 /* FIXME 0.11: suppress warnings for deprecated API such as GValueArray
33 * with newer GLib versions (>= 2.31.0) */
34 #define GLIB_DISABLE_DEPRECATION_WARNINGS
39 #include "gstmultiudpsink.h"
42 #ifdef HAVE_SYS_SOCKET_H
43 #include <sys/socket.h>
47 #include <netinet/in.h>
50 #include "gst/glib-compat-private.h"
52 GST_DEBUG_CATEGORY_STATIC (multiudpsink_debug);
53 #define GST_CAT_DEFAULT (multiudpsink_debug)
55 #define UDP_MAX_SIZE 65507
57 static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
62 /* MultiUDPSink signals and args */
73 SIGNAL_CLIENT_REMOVED,
79 #define DEFAULT_SOCKET NULL
80 #define DEFAULT_CLOSE_SOCKET TRUE
81 #define DEFAULT_USED_SOCKET NULL
82 #define DEFAULT_CLIENTS NULL
83 /* FIXME, this should be disabled by default, we don't need to join a multicast
84 * group for sending, if this socket is also used for receiving, it should
85 * be configured in the element that does the receive. */
86 #define DEFAULT_AUTO_MULTICAST TRUE
87 #define DEFAULT_MULTICAST_IFACE NULL
88 #define DEFAULT_TTL 64
89 #define DEFAULT_TTL_MC 1
90 #define DEFAULT_LOOP TRUE
91 #define DEFAULT_FORCE_IPV4 FALSE
92 #define DEFAULT_QOS_DSCP -1
93 #define DEFAULT_SEND_DUPLICATES TRUE
94 #define DEFAULT_BUFFER_SIZE 0
95 #define DEFAULT_BIND_ADDRESS NULL
96 #define DEFAULT_BIND_PORT 0
110 PROP_MULTICAST_IFACE,
116 PROP_SEND_DUPLICATES,
123 static void gst_multiudpsink_finalize (GObject * object);
125 static GstFlowReturn gst_multiudpsink_render (GstBaseSink * sink,
128 static gboolean gst_multiudpsink_start (GstBaseSink * bsink);
129 static gboolean gst_multiudpsink_stop (GstBaseSink * bsink);
130 static gboolean gst_multiudpsink_unlock (GstBaseSink * bsink);
131 static gboolean gst_multiudpsink_unlock_stop (GstBaseSink * bsink);
133 static void gst_multiudpsink_set_property (GObject * object, guint prop_id,
134 const GValue * value, GParamSpec * pspec);
135 static void gst_multiudpsink_get_property (GObject * object, guint prop_id,
136 GValue * value, GParamSpec * pspec);
138 static void gst_multiudpsink_add_internal (GstMultiUDPSink * sink,
139 const gchar * host, gint port, gboolean lock);
140 static void gst_multiudpsink_clear_internal (GstMultiUDPSink * sink,
143 static guint gst_multiudpsink_signals[LAST_SIGNAL] = { 0 };
145 #define gst_multiudpsink_parent_class parent_class
146 G_DEFINE_TYPE (GstMultiUDPSink, gst_multiudpsink, GST_TYPE_BASE_SINK);
149 gst_multiudpsink_class_init (GstMultiUDPSinkClass * klass)
151 GObjectClass *gobject_class;
152 GstElementClass *gstelement_class;
153 GstBaseSinkClass *gstbasesink_class;
155 gobject_class = (GObjectClass *) klass;
156 gstelement_class = (GstElementClass *) klass;
157 gstbasesink_class = (GstBaseSinkClass *) klass;
159 gobject_class->set_property = gst_multiudpsink_set_property;
160 gobject_class->get_property = gst_multiudpsink_get_property;
161 gobject_class->finalize = gst_multiudpsink_finalize;
164 * GstMultiUDPSink::add:
165 * @gstmultiudpsink: the sink on which the signal is emitted
166 * @host: the hostname/IP address of the client to add
167 * @port: the port of the client to add
169 * Add a client with destination @host and @port to the list of
170 * clients. When the same host/port pair is added multiple times, the
171 * send-duplicates property defines if the packets are sent multiple times to
172 * the same host/port pair or not.
174 * When a host/port pair is added multiple times, an equal amount of remove
175 * calls must be performed to actually remove the host/port pair from the list
178 gst_multiudpsink_signals[SIGNAL_ADD] =
179 g_signal_new ("add", G_TYPE_FROM_CLASS (klass),
180 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
181 G_STRUCT_OFFSET (GstMultiUDPSinkClass, add),
182 NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 2,
183 G_TYPE_STRING, G_TYPE_INT);
185 * GstMultiUDPSink::remove:
186 * @gstmultiudpsink: the sink on which the signal is emitted
187 * @host: the hostname/IP address of the client to remove
188 * @port: the port of the client to remove
190 * Remove the client with destination @host and @port from the list of
193 gst_multiudpsink_signals[SIGNAL_REMOVE] =
194 g_signal_new ("remove", G_TYPE_FROM_CLASS (klass),
195 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
196 G_STRUCT_OFFSET (GstMultiUDPSinkClass, remove),
197 NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 2,
198 G_TYPE_STRING, G_TYPE_INT);
200 * GstMultiUDPSink::clear:
201 * @gstmultiudpsink: the sink on which the signal is emitted
203 * Clear the list of clients.
205 gst_multiudpsink_signals[SIGNAL_CLEAR] =
206 g_signal_new ("clear", G_TYPE_FROM_CLASS (klass),
207 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
208 G_STRUCT_OFFSET (GstMultiUDPSinkClass, clear),
209 NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 0);
211 * GstMultiUDPSink::get-stats:
212 * @gstmultiudpsink: the sink on which the signal is emitted
213 * @host: the hostname/IP address of the client to get stats on
214 * @port: the port of the client to get stats on
216 * Get the statistics of the client with destination @host and @port.
218 * Returns: a GstStructure: bytes_sent, packets_sent,
219 * connect_time (in epoch seconds), disconnect_time (in epoch seconds)
221 gst_multiudpsink_signals[SIGNAL_GET_STATS] =
222 g_signal_new ("get-stats", G_TYPE_FROM_CLASS (klass),
223 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
224 G_STRUCT_OFFSET (GstMultiUDPSinkClass, get_stats),
225 NULL, NULL, g_cclosure_marshal_generic, GST_TYPE_STRUCTURE, 2,
226 G_TYPE_STRING, G_TYPE_INT);
228 * GstMultiUDPSink::client-added:
229 * @gstmultiudpsink: the sink emitting the signal
230 * @host: the hostname/IP address of the added client
231 * @port: the port of the added client
233 * Signal emited when a new client is added to the list of
236 gst_multiudpsink_signals[SIGNAL_CLIENT_ADDED] =
237 g_signal_new ("client-added", G_TYPE_FROM_CLASS (klass),
238 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstMultiUDPSinkClass, client_added),
239 NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 2,
240 G_TYPE_STRING, G_TYPE_INT);
242 * GstMultiUDPSink::client-removed:
243 * @gstmultiudpsink: the sink emitting the signal
244 * @host: the hostname/IP address of the removed client
245 * @port: the port of the removed client
247 * Signal emited when a client is removed from the list of
250 gst_multiudpsink_signals[SIGNAL_CLIENT_REMOVED] =
251 g_signal_new ("client-removed", G_TYPE_FROM_CLASS (klass),
252 G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstMultiUDPSinkClass,
253 client_removed), NULL, NULL, g_cclosure_marshal_generic,
254 G_TYPE_NONE, 2, G_TYPE_STRING, G_TYPE_INT);
256 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BYTES_TO_SERVE,
257 g_param_spec_uint64 ("bytes-to-serve", "Bytes to serve",
258 "Number of bytes received to serve to clients", 0, G_MAXUINT64, 0,
259 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
260 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BYTES_SERVED,
261 g_param_spec_uint64 ("bytes-served", "Bytes served",
262 "Total number of bytes sent to all clients", 0, G_MAXUINT64, 0,
263 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
264 g_object_class_install_property (gobject_class, PROP_SOCKET,
265 g_param_spec_object ("socket", "Socket Handle",
266 "Socket to use for UDP sending. (NULL == allocate)",
267 G_TYPE_SOCKET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
268 g_object_class_install_property (gobject_class, PROP_SOCKET_V6,
269 g_param_spec_object ("socket-v6", "Socket Handle IPv6",
270 "Socket to use for UDPv6 sending. (NULL == allocate)",
271 G_TYPE_SOCKET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
272 g_object_class_install_property (gobject_class, PROP_CLOSE_SOCKET,
273 g_param_spec_boolean ("close-socket", "Close socket",
274 "Close socket if passed as property on state change",
275 DEFAULT_CLOSE_SOCKET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
276 g_object_class_install_property (gobject_class, PROP_USED_SOCKET,
277 g_param_spec_object ("used-socket", "Used Socket Handle",
278 "Socket currently in use for UDP sending. (NULL == no socket)",
279 G_TYPE_SOCKET, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
280 g_object_class_install_property (gobject_class, PROP_USED_SOCKET_V6,
281 g_param_spec_object ("used-socket-v6", "Used Socket Handle IPv6",
282 "Socket currently in use for UDPv6 sending. (NULL == no socket)",
283 G_TYPE_SOCKET, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
284 g_object_class_install_property (gobject_class, PROP_CLIENTS,
285 g_param_spec_string ("clients", "Clients",
286 "A comma separated list of host:port pairs with destinations",
287 DEFAULT_CLIENTS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
288 g_object_class_install_property (gobject_class, PROP_AUTO_MULTICAST,
289 g_param_spec_boolean ("auto-multicast",
290 "Automatically join/leave multicast groups",
291 "Automatically join/leave the multicast groups, FALSE means user"
292 " has to do it himself", DEFAULT_AUTO_MULTICAST,
293 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
294 g_object_class_install_property (gobject_class, PROP_MULTICAST_IFACE,
295 g_param_spec_string ("multicast-iface", "Multicast Interface",
296 "The network interface on which to join the multicast group",
297 DEFAULT_MULTICAST_IFACE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
298 g_object_class_install_property (gobject_class, PROP_TTL,
299 g_param_spec_int ("ttl", "Unicast TTL",
300 "Used for setting the unicast TTL parameter",
301 0, 255, DEFAULT_TTL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
302 g_object_class_install_property (gobject_class, PROP_TTL_MC,
303 g_param_spec_int ("ttl-mc", "Multicast TTL",
304 "Used for setting the multicast TTL parameter",
305 0, 255, DEFAULT_TTL_MC, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
306 g_object_class_install_property (gobject_class, PROP_LOOP,
307 g_param_spec_boolean ("loop", "Multicast Loopback",
308 "Used for setting the multicast loop parameter. TRUE = enable,"
309 " FALSE = disable", DEFAULT_LOOP,
310 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
312 * GstMultiUDPSink::force-ipv4
314 * Force the use of an IPv4 socket.
318 g_object_class_install_property (gobject_class, PROP_FORCE_IPV4,
319 g_param_spec_boolean ("force-ipv4", "Force IPv4",
320 "Forcing the use of an IPv4 socket (DEPRECATED, has no effect anymore)",
321 DEFAULT_FORCE_IPV4, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
323 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_QOS_DSCP,
324 g_param_spec_int ("qos-dscp", "QoS diff srv code point",
325 "Quality of Service, differentiated services code point (-1 default)",
326 -1, 63, DEFAULT_QOS_DSCP,
327 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
329 * GstMultiUDPSink::send-duplicates
331 * When a host/port pair is added mutliple times, send the packet to the host
332 * multiple times as well.
336 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SEND_DUPLICATES,
337 g_param_spec_boolean ("send-duplicates", "Send Duplicates",
338 "When a distination/port pair is added multiple times, send packets "
339 "multiple times as well", DEFAULT_SEND_DUPLICATES,
340 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
342 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BUFFER_SIZE,
343 g_param_spec_int ("buffer-size", "Buffer Size",
344 "Size of the kernel send buffer in bytes, 0=default", 0, G_MAXINT,
345 DEFAULT_BUFFER_SIZE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
347 g_object_class_install_property (gobject_class, PROP_BIND_ADDRESS,
348 g_param_spec_string ("bind-address", "Bind Address",
349 "Address to bind the socket to", DEFAULT_BIND_ADDRESS,
350 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
351 g_object_class_install_property (gobject_class, PROP_BIND_PORT,
352 g_param_spec_int ("bind-port", "Bind Port",
353 "Port to bind the socket to", 0, G_MAXUINT16,
354 DEFAULT_BIND_PORT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
356 gst_element_class_add_pad_template (gstelement_class,
357 gst_static_pad_template_get (&sink_template));
359 gst_element_class_set_static_metadata (gstelement_class, "UDP packet sender",
361 "Send data over the network via UDP",
362 "Wim Taymans <wim.taymans@gmail.com>");
364 gstbasesink_class->render = gst_multiudpsink_render;
365 gstbasesink_class->start = gst_multiudpsink_start;
366 gstbasesink_class->stop = gst_multiudpsink_stop;
367 gstbasesink_class->unlock = gst_multiudpsink_unlock;
368 gstbasesink_class->unlock_stop = gst_multiudpsink_unlock_stop;
369 klass->add = gst_multiudpsink_add;
370 klass->remove = gst_multiudpsink_remove;
371 klass->clear = gst_multiudpsink_clear;
372 klass->get_stats = gst_multiudpsink_get_stats;
374 GST_DEBUG_CATEGORY_INIT (multiudpsink_debug, "multiudpsink", 0, "UDP sink");
379 gst_multiudpsink_init (GstMultiUDPSink * sink)
383 g_mutex_init (&sink->client_lock);
384 sink->socket = DEFAULT_SOCKET;
385 sink->socket_v6 = DEFAULT_SOCKET;
386 sink->used_socket = DEFAULT_USED_SOCKET;
387 sink->used_socket_v6 = DEFAULT_USED_SOCKET;
388 sink->close_socket = DEFAULT_CLOSE_SOCKET;
389 sink->external_socket = (sink->socket != NULL);
390 sink->auto_multicast = DEFAULT_AUTO_MULTICAST;
391 sink->ttl = DEFAULT_TTL;
392 sink->ttl_mc = DEFAULT_TTL_MC;
393 sink->loop = DEFAULT_LOOP;
394 sink->force_ipv4 = DEFAULT_FORCE_IPV4;
395 sink->qos_dscp = DEFAULT_QOS_DSCP;
396 sink->send_duplicates = DEFAULT_SEND_DUPLICATES;
397 sink->multi_iface = g_strdup (DEFAULT_MULTICAST_IFACE);
399 sink->cancellable = g_cancellable_new ();
401 /* allocate OutputVector and MapInfo for use in the render function, buffers can
402 * hold up to a maximum amount of memory so we can create a maximally sized
404 max_mem = gst_buffer_get_max_memory ();
406 sink->vec = g_new (GOutputVector, max_mem);
407 sink->map = g_new (GstMapInfo, max_mem);
410 static GstUDPClient *
411 create_client (GstMultiUDPSink * sink, const gchar * host, gint port)
413 GstUDPClient *client;
418 addr = g_inet_address_new_from_string (host);
422 resolver = g_resolver_get_default ();
424 g_resolver_lookup_by_name (resolver, host, sink->cancellable, &err);
427 addr = G_INET_ADDRESS (g_object_ref (results->data));
429 g_resolver_free_addresses (results);
430 g_object_unref (resolver);
432 #ifndef GST_DISABLE_GST_DEBUG
434 gchar *ip = g_inet_address_to_string (addr);
436 GST_DEBUG_OBJECT (sink, "IP address for host %s is %s", host, ip);
441 client = g_slice_new0 (GstUDPClient);
442 client->refcount = 1;
443 client->host = g_strdup (host);
445 client->addr = g_inet_socket_address_new (addr, port);
446 g_object_unref (addr);
452 g_object_unref (resolver);
459 free_client (GstUDPClient * client)
461 g_object_unref (client->addr);
462 g_free (client->host);
463 g_slice_free (GstUDPClient, client);
467 client_compare (GstUDPClient * a, GstUDPClient * b)
469 if ((a->port == b->port) && (strcmp (a->host, b->host) == 0))
476 gst_multiudpsink_finalize (GObject * object)
478 GstMultiUDPSink *sink;
480 sink = GST_MULTIUDPSINK (object);
482 g_list_foreach (sink->clients, (GFunc) free_client, NULL);
483 g_list_free (sink->clients);
486 g_object_unref (sink->socket);
490 g_object_unref (sink->socket_v6);
491 sink->socket_v6 = NULL;
493 if (sink->used_socket)
494 g_object_unref (sink->used_socket);
495 sink->used_socket = NULL;
497 if (sink->used_socket_v6)
498 g_object_unref (sink->used_socket_v6);
499 sink->used_socket_v6 = NULL;
501 if (sink->cancellable)
502 g_object_unref (sink->cancellable);
503 sink->cancellable = NULL;
505 g_free (sink->multi_iface);
506 sink->multi_iface = NULL;
513 g_free (sink->bind_address);
514 sink->bind_address = NULL;
516 g_mutex_clear (&sink->client_lock);
518 G_OBJECT_CLASS (parent_class)->finalize (object);
522 gst_multiudpsink_render (GstBaseSink * bsink, GstBuffer * buffer)
524 GstMultiUDPSink *sink;
531 gint num, no_clients;
534 sink = GST_MULTIUDPSINK (bsink);
536 n_mem = gst_buffer_n_memory (buffer);
540 /* allocated on the stack, the max number of memory blocks is limited so this
541 * should not cause stack overflows */
546 for (i = 0; i < n_mem; i++) {
547 mem = gst_buffer_get_memory (buffer, i);
548 gst_memory_map (mem, &map[i], GST_MAP_READ);
550 vec[i].buffer = map[i].data;
551 vec[i].size = map[i].size;
556 sink->bytes_to_serve += size;
558 /* grab lock while iterating and sending to clients, this should be
559 * fast as UDP never blocks */
560 g_mutex_lock (&sink->client_lock);
561 GST_LOG_OBJECT (bsink, "about to send %" G_GSIZE_FORMAT " bytes in %u blocks",
566 for (clients = sink->clients; clients; clients = g_list_next (clients)) {
567 GstUDPClient *client;
569 GSocketFamily family;
572 client = (GstUDPClient *) clients->data;
574 GST_LOG_OBJECT (sink, "sending %" G_GSIZE_FORMAT " bytes to client %p",
577 family = g_socket_address_get_family (G_SOCKET_ADDRESS (client->addr));
578 /* Select socket to send from for this address */
579 if (family == G_SOCKET_FAMILY_IPV6 || !sink->used_socket)
580 socket = sink->used_socket_v6;
582 socket = sink->used_socket;
584 count = sink->send_duplicates ? client->refcount : 1;
590 g_socket_send_message (socket, client->addr, vec, n_mem,
591 NULL, 0, 0, sink->cancellable, &err);
593 if (G_UNLIKELY (ret < 0)) {
594 if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED))
597 /* we continue after posting a warning, next packets might be ok
599 if (size > UDP_MAX_SIZE) {
600 GST_ELEMENT_WARNING (sink, RESOURCE, WRITE,
601 ("Attempting to send a UDP packet larger than maximum size "
602 "(%" G_GSIZE_FORMAT " > %d)", size, UDP_MAX_SIZE),
603 ("Reason: %s", err ? err->message : "unknown reason"));
605 GST_ELEMENT_WARNING (sink, RESOURCE, WRITE,
606 ("Error sending UDP packet"), ("Reason: %s",
607 err ? err->message : "unknown reason"));
609 g_clear_error (&err);
612 client->bytes_sent += ret;
613 client->packets_sent++;
614 sink->bytes_served += ret;
618 g_mutex_unlock (&sink->client_lock);
620 /* unmap all memory again */
621 for (i = 0; i < n_mem; i++) {
622 gst_memory_unmap (map[i].memory, &map[i]);
623 gst_memory_unref (map[i].memory);
626 GST_LOG_OBJECT (sink, "sent %" G_GSIZE_FORMAT " bytes to %d (of %d) clients",
627 size, num, no_clients);
637 GST_DEBUG ("we are flushing");
638 g_mutex_unlock (&sink->client_lock);
639 g_clear_error (&err);
641 return GST_FLOW_FLUSHING;
646 gst_multiudpsink_set_clients_string (GstMultiUDPSink * sink,
647 const gchar * string)
652 clients = g_strsplit (string, ",", 0);
654 g_mutex_lock (&sink->client_lock);
655 /* clear all existing clients */
656 gst_multiudpsink_clear_internal (sink, FALSE);
657 for (i = 0; clients[i]; i++) {
662 p = strstr (clients[i], ":");
665 port = g_ascii_strtoll (p + 1, NULL, 10);
668 gst_multiudpsink_add_internal (sink, host, port, FALSE);
670 g_mutex_unlock (&sink->client_lock);
672 g_strfreev (clients);
676 gst_multiudpsink_get_clients_string (GstMultiUDPSink * sink)
681 str = g_string_new ("");
683 g_mutex_lock (&sink->client_lock);
684 clients = sink->clients;
686 GstUDPClient *client;
689 client = (GstUDPClient *) clients->data;
691 clients = g_list_next (clients);
693 count = client->refcount;
695 g_string_append_printf (str, "%s:%d%s", client->host, client->port,
696 (clients || count > 1 ? "," : ""));
699 g_mutex_unlock (&sink->client_lock);
701 return g_string_free (str, FALSE);
705 gst_multiudpsink_setup_qos_dscp (GstMultiUDPSink * sink, GSocket * socket)
707 /* don't touch on -1 */
708 if (sink->qos_dscp < 0)
719 fd = g_socket_get_fd (socket);
721 GST_DEBUG_OBJECT (sink, "setting TOS to %d", sink->qos_dscp);
723 /* Extract and shift 6 bits of DSFIELD */
724 tos = (sink->qos_dscp & 0x3f) << 2;
726 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &tos, sizeof (tos)) < 0) {
727 GST_ERROR_OBJECT (sink, "could not set TOS: %s", g_strerror (errno));
730 if (setsockopt (fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof (tos)) < 0) {
731 GST_ERROR_OBJECT (sink, "could not set TCLASS: %s", g_strerror (errno));
739 gst_multiudpsink_set_property (GObject * object, guint prop_id,
740 const GValue * value, GParamSpec * pspec)
742 GstMultiUDPSink *udpsink;
744 udpsink = GST_MULTIUDPSINK (object);
748 if (udpsink->socket != NULL && udpsink->socket != udpsink->used_socket &&
749 udpsink->close_socket) {
752 if (!g_socket_close (udpsink->socket, &err)) {
753 GST_ERROR ("failed to close socket %p: %s", udpsink->socket,
755 g_clear_error (&err);
759 g_object_unref (udpsink->socket);
760 udpsink->socket = g_value_dup_object (value);
761 GST_DEBUG_OBJECT (udpsink, "setting socket to %p", udpsink->socket);
764 if (udpsink->socket_v6 != NULL
765 && udpsink->socket_v6 != udpsink->used_socket_v6
766 && udpsink->close_socket) {
769 if (!g_socket_close (udpsink->socket_v6, &err)) {
770 GST_ERROR ("failed to close socket %p: %s", udpsink->socket_v6,
772 g_clear_error (&err);
775 if (udpsink->socket_v6)
776 g_object_unref (udpsink->socket_v6);
777 udpsink->socket_v6 = g_value_dup_object (value);
778 GST_DEBUG_OBJECT (udpsink, "setting socket to %p", udpsink->socket_v6);
780 case PROP_CLOSE_SOCKET:
781 udpsink->close_socket = g_value_get_boolean (value);
784 gst_multiudpsink_set_clients_string (udpsink, g_value_get_string (value));
786 case PROP_AUTO_MULTICAST:
787 udpsink->auto_multicast = g_value_get_boolean (value);
789 case PROP_MULTICAST_IFACE:
790 g_free (udpsink->multi_iface);
792 if (g_value_get_string (value) == NULL)
793 udpsink->multi_iface = g_strdup (DEFAULT_MULTICAST_IFACE);
795 udpsink->multi_iface = g_value_dup_string (value);
798 udpsink->ttl = g_value_get_int (value);
801 udpsink->ttl_mc = g_value_get_int (value);
804 udpsink->loop = g_value_get_boolean (value);
806 case PROP_FORCE_IPV4:
807 udpsink->force_ipv4 = g_value_get_boolean (value);
810 udpsink->qos_dscp = g_value_get_int (value);
811 gst_multiudpsink_setup_qos_dscp (udpsink, udpsink->used_socket);
812 gst_multiudpsink_setup_qos_dscp (udpsink, udpsink->used_socket_v6);
814 case PROP_SEND_DUPLICATES:
815 udpsink->send_duplicates = g_value_get_boolean (value);
817 case PROP_BUFFER_SIZE:
818 udpsink->buffer_size = g_value_get_int (value);
820 case PROP_BIND_ADDRESS:
821 g_free (udpsink->bind_address);
822 udpsink->bind_address = g_value_dup_string (value);
825 udpsink->bind_port = g_value_get_int (value);
828 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
834 gst_multiudpsink_get_property (GObject * object, guint prop_id, GValue * value,
837 GstMultiUDPSink *udpsink;
839 udpsink = GST_MULTIUDPSINK (object);
842 case PROP_BYTES_TO_SERVE:
843 g_value_set_uint64 (value, udpsink->bytes_to_serve);
845 case PROP_BYTES_SERVED:
846 g_value_set_uint64 (value, udpsink->bytes_served);
849 g_value_set_object (value, udpsink->socket);
852 g_value_set_object (value, udpsink->socket_v6);
854 case PROP_CLOSE_SOCKET:
855 g_value_set_boolean (value, udpsink->close_socket);
857 case PROP_USED_SOCKET:
858 g_value_set_object (value, udpsink->used_socket);
860 case PROP_USED_SOCKET_V6:
861 g_value_set_object (value, udpsink->used_socket_v6);
864 g_value_take_string (value,
865 gst_multiudpsink_get_clients_string (udpsink));
867 case PROP_AUTO_MULTICAST:
868 g_value_set_boolean (value, udpsink->auto_multicast);
870 case PROP_MULTICAST_IFACE:
871 g_value_set_string (value, udpsink->multi_iface);
874 g_value_set_int (value, udpsink->ttl);
877 g_value_set_int (value, udpsink->ttl_mc);
880 g_value_set_boolean (value, udpsink->loop);
882 case PROP_FORCE_IPV4:
883 g_value_set_boolean (value, udpsink->force_ipv4);
886 g_value_set_int (value, udpsink->qos_dscp);
888 case PROP_SEND_DUPLICATES:
889 g_value_set_boolean (value, udpsink->send_duplicates);
891 case PROP_BUFFER_SIZE:
892 g_value_set_int (value, udpsink->buffer_size);
894 case PROP_BIND_ADDRESS:
895 g_value_set_string (value, udpsink->bind_address);
898 g_value_set_int (value, udpsink->bind_port);
901 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
907 gst_multiudpsink_configure_client (GstMultiUDPSink * sink,
908 GstUDPClient * client)
910 GInetSocketAddress *saddr = G_INET_SOCKET_ADDRESS (client->addr);
911 GInetAddress *addr = g_inet_socket_address_get_address (saddr);
912 GSocketFamily family = g_socket_address_get_family (G_SOCKET_ADDRESS (saddr));
916 GST_DEBUG_OBJECT (sink, "configuring client %p", client);
918 if (family == G_SOCKET_FAMILY_IPV6 && !sink->used_socket_v6)
921 /* Select socket to send from for this address */
922 if (family == G_SOCKET_FAMILY_IPV6 || !sink->used_socket)
923 socket = sink->used_socket_v6;
925 socket = sink->used_socket;
927 if (g_inet_address_get_is_multicast (addr)) {
928 GST_DEBUG_OBJECT (sink, "we have a multicast client %p", client);
929 if (sink->auto_multicast) {
930 GST_DEBUG_OBJECT (sink, "autojoining group");
931 if (!g_socket_join_multicast_group (socket, addr, FALSE,
932 sink->multi_iface, &err))
933 goto join_group_failed;
935 GST_DEBUG_OBJECT (sink, "setting loop to %d", sink->loop);
936 g_socket_set_multicast_loopback (socket, sink->loop);
937 GST_DEBUG_OBJECT (sink, "setting ttl to %d", sink->ttl_mc);
938 g_socket_set_multicast_ttl (socket, sink->ttl_mc);
940 GST_DEBUG_OBJECT (sink, "setting unicast ttl to %d", sink->ttl);
941 g_socket_set_ttl (socket, sink->ttl);
948 gst_multiudpsink_stop (GST_BASE_SINK (sink));
949 GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
950 ("Could not join multicast group: %s",
951 err ? err->message : "unknown reason"));
952 g_clear_error (&err);
957 gst_multiudpsink_stop (GST_BASE_SINK (sink));
958 GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
959 ("Invalid address family (got %d)", family));
964 /* create a socket for sending to remote machine */
966 gst_multiudpsink_start (GstBaseSink * bsink)
968 GstMultiUDPSink *sink;
970 GstUDPClient *client;
973 sink = GST_MULTIUDPSINK (bsink);
975 sink->external_socket = FALSE;
978 GST_DEBUG_OBJECT (sink, "using configured socket");
979 if (g_socket_get_family (sink->socket) == G_SOCKET_FAMILY_IPV6) {
980 sink->used_socket_v6 = G_SOCKET (g_object_ref (sink->socket));
981 sink->external_socket = TRUE;
983 sink->used_socket = G_SOCKET (g_object_ref (sink->socket));
984 sink->external_socket = TRUE;
988 if (sink->socket_v6) {
989 GST_DEBUG_OBJECT (sink, "using configured IPv6 socket");
990 g_return_val_if_fail (g_socket_get_family (sink->socket) !=
991 G_SOCKET_FAMILY_IPV6, FALSE);
993 if (sink->used_socket_v6 && sink->used_socket_v6 != sink->socket_v6) {
994 GST_ERROR_OBJECT (sink,
995 "Provided different IPv6 sockets in socket and socket-v6 properties");
999 sink->used_socket_v6 = G_SOCKET (g_object_ref (sink->socket_v6));
1000 sink->external_socket = TRUE;
1003 if (!sink->used_socket && !sink->used_socket_v6) {
1004 GSocketAddress *bind_addr;
1005 GInetAddress *bind_iaddr;
1007 if (sink->bind_address) {
1008 GSocketFamily family;
1010 bind_iaddr = g_inet_address_new_from_string (sink->bind_address);
1013 GResolver *resolver;
1015 resolver = g_resolver_get_default ();
1017 g_resolver_lookup_by_name (resolver, sink->bind_address,
1018 sink->cancellable, &err);
1020 g_object_unref (resolver);
1023 bind_iaddr = G_INET_ADDRESS (g_object_ref (results->data));
1024 g_resolver_free_addresses (results);
1025 g_object_unref (resolver);
1028 bind_addr = g_inet_socket_address_new (bind_iaddr, sink->bind_port);
1029 g_object_unref (bind_iaddr);
1030 family = g_socket_address_get_family (G_SOCKET_ADDRESS (bind_addr));
1032 if ((sink->used_socket =
1033 g_socket_new (family, G_SOCKET_TYPE_DATAGRAM,
1034 G_SOCKET_PROTOCOL_UDP, &err)) == NULL) {
1035 g_object_unref (bind_addr);
1039 g_socket_bind (sink->used_socket, bind_addr, TRUE, &err);
1043 /* create sender sockets if none available */
1044 if ((sink->used_socket = g_socket_new (G_SOCKET_FAMILY_IPV4,
1045 G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err)) == NULL)
1048 bind_iaddr = g_inet_address_new_any (G_SOCKET_FAMILY_IPV4);
1049 bind_addr = g_inet_socket_address_new (bind_iaddr, 0);
1050 g_socket_bind (sink->used_socket, bind_addr, TRUE, &err);
1051 g_object_unref (bind_addr);
1052 g_object_unref (bind_iaddr);
1056 if ((sink->used_socket_v6 = g_socket_new (G_SOCKET_FAMILY_IPV6,
1057 G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP,
1059 GST_INFO_OBJECT (sink, "Failed to create IPv6 socket: %s",
1061 g_clear_error (&err);
1063 bind_iaddr = g_inet_address_new_any (G_SOCKET_FAMILY_IPV6);
1064 bind_addr = g_inet_socket_address_new (bind_iaddr, 0);
1065 g_socket_bind (sink->used_socket_v6, bind_addr, TRUE, &err);
1066 g_object_unref (bind_addr);
1067 g_object_unref (bind_iaddr);
1078 len = sizeof (sndsize);
1079 if (sink->buffer_size != 0) {
1080 sndsize = sink->buffer_size;
1082 GST_DEBUG_OBJECT (sink, "setting udp buffer of %d bytes", sndsize);
1083 /* set buffer size, Note that on Linux this is typically limited to a
1084 * maximum of around 100K. Also a minimum of 128 bytes is required on
1087 if (sink->used_socket) {
1089 setsockopt (g_socket_get_fd (sink->used_socket), SOL_SOCKET,
1090 SO_SNDBUF, (void *) &sndsize, len);
1092 GST_ELEMENT_WARNING (sink, RESOURCE, SETTINGS, (NULL),
1093 ("Could not create a buffer of requested %d bytes, %d: %s",
1094 sndsize, ret, g_strerror (errno)));
1098 if (sink->used_socket_v6) {
1100 setsockopt (g_socket_get_fd (sink->used_socket_v6), SOL_SOCKET,
1101 SO_SNDBUF, (void *) &sndsize, len);
1103 GST_ELEMENT_WARNING (sink, RESOURCE, SETTINGS, (NULL),
1104 ("Could not create a buffer of requested %d bytes, %d: %s",
1105 sndsize, ret, g_strerror (errno)));
1110 /* read the value of the receive buffer. Note that on linux this returns 2x the
1111 * value we set because the kernel allocates extra memory for metadata.
1112 * The default on Linux is about 100K (which is about 50K without metadata) */
1113 if (sink->used_socket) {
1115 getsockopt (g_socket_get_fd (sink->used_socket), SOL_SOCKET,
1116 SO_SNDBUF, (void *) &sndsize, &len);
1118 GST_DEBUG_OBJECT (sink, "have UDP buffer of %d bytes", sndsize);
1120 GST_DEBUG_OBJECT (sink, "could not get UDP buffer size");
1123 if (sink->used_socket_v6) {
1125 getsockopt (g_socket_get_fd (sink->used_socket_v6), SOL_SOCKET,
1126 SO_SNDBUF, (void *) &sndsize, &len);
1128 GST_DEBUG_OBJECT (sink, "have UDPv6 buffer of %d bytes", sndsize);
1130 GST_DEBUG_OBJECT (sink, "could not get UDPv6 buffer size");
1135 #ifdef SO_BINDTODEVICE
1136 if (sink->multi_iface) {
1137 if (sink->used_socket) {
1138 setsockopt (g_socket_get_fd (sink->used_socket), SOL_SOCKET,
1139 SO_BINDTODEVICE, sink->multi_iface, strlen (sink->multi_iface));
1141 if (sink->used_socket_v6) {
1142 setsockopt (g_socket_get_fd (sink->used_socket_v6), SOL_SOCKET,
1143 SO_BINDTODEVICE, sink->multi_iface, strlen (sink->multi_iface));
1148 if (sink->used_socket)
1149 g_socket_set_broadcast (sink->used_socket, TRUE);
1150 if (sink->used_socket_v6)
1151 g_socket_set_broadcast (sink->used_socket_v6, TRUE);
1153 sink->bytes_to_serve = 0;
1154 sink->bytes_served = 0;
1156 gst_multiudpsink_setup_qos_dscp (sink, sink->used_socket);
1157 gst_multiudpsink_setup_qos_dscp (sink, sink->used_socket_v6);
1159 /* look for multicast clients and join multicast groups appropriately
1160 set also ttl and multicast loopback delivery appropriately */
1161 for (clients = sink->clients; clients; clients = g_list_next (clients)) {
1162 client = (GstUDPClient *) clients->data;
1164 if (!gst_multiudpsink_configure_client (sink, client))
1172 GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (NULL),
1173 ("Could not create socket: %s", err->message));
1174 g_clear_error (&err);
1179 GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (NULL),
1180 ("Failed to bind socket: %s", err->message));
1181 g_clear_error (&err);
1186 GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (NULL),
1187 ("Failed to resolve bind address %s: %s", sink->bind_address,
1189 g_clear_error (&err);
1195 gst_multiudpsink_stop (GstBaseSink * bsink)
1197 GstMultiUDPSink *udpsink;
1199 udpsink = GST_MULTIUDPSINK (bsink);
1201 if (udpsink->used_socket) {
1202 if (udpsink->close_socket || !udpsink->external_socket) {
1205 if (!g_socket_close (udpsink->used_socket, &err)) {
1206 GST_ERROR_OBJECT (udpsink, "Failed to close socket: %s", err->message);
1207 g_clear_error (&err);
1211 g_object_unref (udpsink->used_socket);
1212 udpsink->used_socket = NULL;
1215 if (udpsink->used_socket_v6) {
1216 if (udpsink->close_socket || !udpsink->external_socket) {
1219 if (!g_socket_close (udpsink->used_socket_v6, &err)) {
1220 GST_ERROR_OBJECT (udpsink, "Failed to close socket: %s", err->message);
1221 g_clear_error (&err);
1225 g_object_unref (udpsink->used_socket_v6);
1226 udpsink->used_socket_v6 = NULL;
1233 gst_multiudpsink_add_internal (GstMultiUDPSink * sink, const gchar * host,
1234 gint port, gboolean lock)
1236 GstUDPClient *client;
1237 GstUDPClient udpclient;
1241 udpclient.host = (gchar *) host;
1242 udpclient.port = port;
1244 GST_DEBUG_OBJECT (sink, "adding client on host %s, port %d", host, port);
1247 g_mutex_lock (&sink->client_lock);
1249 find = g_list_find_custom (sink->clients, &udpclient,
1250 (GCompareFunc) client_compare);
1252 client = (GstUDPClient *) find->data;
1254 GST_DEBUG_OBJECT (sink, "found %d existing clients with host %s, port %d",
1255 client->refcount, host, port);
1258 client = create_client (sink, host, port);
1262 g_get_current_time (&now);
1263 client->connect_time = GST_TIMEVAL_TO_TIME (now);
1265 if (sink->used_socket)
1266 gst_multiudpsink_configure_client (sink, client);
1268 GST_DEBUG_OBJECT (sink, "add client with host %s, port %d", host, port);
1269 sink->clients = g_list_prepend (sink->clients, client);
1273 g_mutex_unlock (&sink->client_lock);
1275 g_signal_emit (G_OBJECT (sink),
1276 gst_multiudpsink_signals[SIGNAL_CLIENT_ADDED], 0, host, port);
1278 GST_DEBUG_OBJECT (sink, "added client on host %s, port %d", host, port);
1284 GST_DEBUG_OBJECT (sink, "did not add client on host %s, port %d", host,
1287 g_mutex_unlock (&sink->client_lock);
1293 gst_multiudpsink_add (GstMultiUDPSink * sink, const gchar * host, gint port)
1295 gst_multiudpsink_add_internal (sink, host, port, TRUE);
1299 gst_multiudpsink_remove (GstMultiUDPSink * sink, const gchar * host, gint port)
1302 GstUDPClient udpclient;
1303 GstUDPClient *client;
1306 udpclient.host = (gchar *) host;
1307 udpclient.port = port;
1309 g_mutex_lock (&sink->client_lock);
1310 find = g_list_find_custom (sink->clients, &udpclient,
1311 (GCompareFunc) client_compare);
1315 client = (GstUDPClient *) find->data;
1317 GST_DEBUG_OBJECT (sink, "found %d clients with host %s, port %d",
1318 client->refcount, host, port);
1321 if (client->refcount == 0) {
1322 GInetSocketAddress *saddr = G_INET_SOCKET_ADDRESS (client->addr);
1323 GInetAddress *addr = g_inet_socket_address_get_address (saddr);
1324 GSocketFamily family =
1325 g_socket_address_get_family (G_SOCKET_ADDRESS (saddr));
1328 /* Select socket to send from for this address */
1329 if (family == G_SOCKET_FAMILY_IPV6 || !sink->used_socket)
1330 socket = sink->used_socket_v6;
1332 socket = sink->used_socket;
1334 GST_DEBUG_OBJECT (sink, "remove client with host %s, port %d", host, port);
1336 g_get_current_time (&now);
1337 client->disconnect_time = GST_TIMEVAL_TO_TIME (now);
1339 if (socket && sink->auto_multicast
1340 && g_inet_address_get_is_multicast (addr)) {
1343 if (!g_socket_leave_multicast_group (socket, addr, FALSE,
1344 sink->multi_iface, &err)) {
1345 GST_DEBUG_OBJECT (sink, "Failed to leave multicast group: %s",
1347 g_clear_error (&err);
1351 /* Unlock to emit signal before we delete the actual client */
1352 g_mutex_unlock (&sink->client_lock);
1353 g_signal_emit (G_OBJECT (sink),
1354 gst_multiudpsink_signals[SIGNAL_CLIENT_REMOVED], 0, host, port);
1355 g_mutex_lock (&sink->client_lock);
1357 sink->clients = g_list_delete_link (sink->clients, find);
1359 free_client (client);
1361 g_mutex_unlock (&sink->client_lock);
1368 g_mutex_unlock (&sink->client_lock);
1369 GST_WARNING_OBJECT (sink, "client at host %s, port %d not found",
1376 gst_multiudpsink_clear_internal (GstMultiUDPSink * sink, gboolean lock)
1378 GST_DEBUG_OBJECT (sink, "clearing");
1379 /* we only need to remove the client structure, there is no additional
1380 * socket or anything to free for UDP */
1382 g_mutex_lock (&sink->client_lock);
1383 g_list_foreach (sink->clients, (GFunc) free_client, sink);
1384 g_list_free (sink->clients);
1385 sink->clients = NULL;
1387 g_mutex_unlock (&sink->client_lock);
1391 gst_multiudpsink_clear (GstMultiUDPSink * sink)
1393 gst_multiudpsink_clear_internal (sink, TRUE);
1397 gst_multiudpsink_get_stats (GstMultiUDPSink * sink, const gchar * host,
1400 GstUDPClient *client;
1401 GstStructure *result = NULL;
1402 GstUDPClient udpclient;
1405 udpclient.host = (gchar *) host;
1406 udpclient.port = port;
1408 g_mutex_lock (&sink->client_lock);
1410 find = g_list_find_custom (sink->clients, &udpclient,
1411 (GCompareFunc) client_compare);
1415 GST_DEBUG_OBJECT (sink, "stats for client with host %s, port %d", host, port);
1417 client = (GstUDPClient *) find->data;
1419 result = gst_structure_new_empty ("multiudpsink-stats");
1421 gst_structure_set (result,
1422 "bytes-sent", G_TYPE_UINT64, client->bytes_sent,
1423 "packets-sent", G_TYPE_UINT64, client->packets_sent,
1424 "connect-time", G_TYPE_UINT64, client->connect_time,
1425 "disconnect-time", G_TYPE_UINT64, client->disconnect_time, NULL);
1427 g_mutex_unlock (&sink->client_lock);
1434 g_mutex_unlock (&sink->client_lock);
1435 GST_WARNING_OBJECT (sink, "client with host %s, port %d not found",
1437 /* Apparently (see comment in gstmultifdsink.c) returning NULL from here may
1438 * confuse/break python bindings */
1439 return gst_structure_new_empty ("multiudpsink-stats");
1444 gst_multiudpsink_unlock (GstBaseSink * bsink)
1446 GstMultiUDPSink *sink;
1448 sink = GST_MULTIUDPSINK (bsink);
1450 g_cancellable_cancel (sink->cancellable);
1456 gst_multiudpsink_unlock_stop (GstBaseSink * bsink)
1458 GstMultiUDPSink *sink;
1460 sink = GST_MULTIUDPSINK (bsink);
1462 g_cancellable_reset (sink->cancellable);