2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
24 #include "gstudpsink.h"
26 #define UDP_DEFAULT_HOST "localhost"
27 #define UDP_DEFAULT_PORT 4951
28 #define UDP_DEFAULT_CONTROL 1
30 /* elementfactory information */
31 GstElementDetails gst_udpsink_details = {
35 "Send data over the network via UDP",
37 "Wim Taymans <wim.taymans@chello.be>",
41 /* UDPSink signals and args */
57 #define GST_TYPE_UDPSINK_CONTROL (gst_udpsink_control_get_type())
59 gst_udpsink_control_get_type(void) {
60 static GType udpsink_control_type = 0;
61 static GEnumValue udpsink_control[] = {
62 {CONTROL_NONE, "1", "none"},
63 {CONTROL_UDP, "2", "udp"},
64 {CONTROL_TCP, "3", "tcp"},
65 {CONTROL_ZERO, NULL, NULL},
67 if (!udpsink_control_type) {
68 udpsink_control_type = g_enum_register_static("GstUDPSinkControl", udpsink_control);
70 return udpsink_control_type;
73 static void gst_udpsink_class_init (GstUDPSink *klass);
74 static void gst_udpsink_init (GstUDPSink *udpsink);
76 static void gst_udpsink_set_clock (GstElement *element, GstClock *clock);
78 static void gst_udpsink_chain (GstPad *pad,GstBuffer *buf);
79 static GstElementStateReturn gst_udpsink_change_state (GstElement *element);
81 static void gst_udpsink_set_property (GObject *object, guint prop_id,
82 const GValue *value, GParamSpec *pspec);
83 static void gst_udpsink_get_property (GObject *object, guint prop_id,
84 GValue *value, GParamSpec *pspec);
87 static GstElementClass *parent_class = NULL;
88 /*static guint gst_udpsink_signals[LAST_SIGNAL] = { 0 }; */
91 gst_udpsink_get_type (void)
93 static GType udpsink_type = 0;
97 static const GTypeInfo udpsink_info = {
98 sizeof(GstUDPSinkClass),
101 (GClassInitFunc)gst_udpsink_class_init,
106 (GInstanceInitFunc)gst_udpsink_init,
109 udpsink_type = g_type_register_static (GST_TYPE_ELEMENT, "GstUDPSink", &udpsink_info, 0);
115 gst_udpsink_class_init (GstUDPSink *klass)
117 GObjectClass *gobject_class;
118 GstElementClass *gstelement_class;
120 gobject_class = (GObjectClass*) klass;
121 gstelement_class = (GstElementClass*) klass;
123 parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
125 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HOST,
126 g_param_spec_string ("host", "host",
127 "The host/IP/Multicast group to send the packets to",
128 UDP_DEFAULT_HOST, G_PARAM_READWRITE));
129 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PORT,
130 g_param_spec_int ("port", "port", "The port to send the packets to",
131 0, 32768, UDP_DEFAULT_PORT, G_PARAM_READWRITE));
132 g_object_class_install_property (gobject_class, ARG_CONTROL,
133 g_param_spec_enum ("control", "control", "The type of control",
134 GST_TYPE_UDPSINK_CONTROL, CONTROL_UDP, G_PARAM_READWRITE));
135 g_object_class_install_property (gobject_class, ARG_MTU,
136 g_param_spec_int ("mtu", "mtu", "mtu", G_MININT, G_MAXINT,
137 0, G_PARAM_READWRITE)); /* CHECKME */
139 gobject_class->set_property = gst_udpsink_set_property;
140 gobject_class->get_property = gst_udpsink_get_property;
142 gstelement_class->change_state = gst_udpsink_change_state;
143 gstelement_class->set_clock = gst_udpsink_set_clock;
147 static GstPadLinkReturn
148 gst_udpsink_sinkconnect (GstPad *pad, GstCaps *caps)
151 struct sockaddr_in serv_addr;
152 struct hostent *serverhost;
156 #ifndef GST_DISABLE_LOADSAVE
161 udpsink = GST_UDPSINK (gst_pad_get_parent (pad));
163 memset(&serv_addr, 0, sizeof(serv_addr));
165 /* its a name rather than an ipnum */
166 serverhost = gethostbyname(udpsink->host);
167 if (serverhost == (struct hostent *)0) {
168 perror("gethostbyname");
169 return GST_PAD_LINK_REFUSED;
172 memmove(&serv_addr.sin_addr,serverhost->h_addr, serverhost->h_length);
174 serv_addr.sin_family = AF_INET;
175 serv_addr.sin_port = htons(udpsink->port+1);
177 doc = xmlNewDoc ("1.0");
178 doc->xmlRootNode = xmlNewDocNode (doc, NULL, "NewCaps", NULL);
180 gst_caps_save_thyself (caps, doc->xmlRootNode);
182 switch (udpsink->control) {
184 if ((fd = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) {
186 return GST_PAD_LINK_REFUSED;
189 /* We can only do broadcast in udp */
191 setsockopt (fd,SOL_SOCKET, SO_BROADCAST, &bc_val, sizeof (bc_val));
193 xmlDocDumpMemory(doc, &buf, &buf_size);
195 if (sendto (fd, buf, buf_size, 0, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) == -1)
198 return GST_PAD_LINK_REFUSED;
204 if ((fd = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
206 return GST_PAD_LINK_REFUSED;
209 if (connect(fd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) != 0) {
210 g_printerr ("udpsink: connect to %s port %d failed: %s\n",
211 udpsink->host, udpsink->port, g_strerror(errno));
212 return GST_PAD_LINK_REFUSED;
215 f = fdopen (dup (fd), "wb");
223 return GST_PAD_LINK_OK;
226 return GST_PAD_LINK_REFUSED;
231 return GST_PAD_LINK_OK;
235 gst_udpsink_set_clock (GstElement *element, GstClock *clock)
239 udpsink = GST_UDPSINK (element);
241 udpsink->clock = clock;
245 gst_udpsink_init (GstUDPSink *udpsink)
247 /* create the sink and src pads */
248 udpsink->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
249 gst_element_add_pad (GST_ELEMENT (udpsink), udpsink->sinkpad);
250 gst_pad_set_chain_function (udpsink->sinkpad, gst_udpsink_chain);
251 gst_pad_set_link_function (udpsink->sinkpad, gst_udpsink_sinkconnect);
253 udpsink->host = g_strdup (UDP_DEFAULT_HOST);
254 udpsink->port = UDP_DEFAULT_PORT;
255 udpsink->control = CONTROL_UDP;
258 udpsink->clock = NULL;
262 gst_udpsink_chain (GstPad *pad, GstBuffer *buf)
268 g_return_if_fail (pad != NULL);
269 g_return_if_fail (GST_IS_PAD (pad));
270 g_return_if_fail (buf != NULL);
272 udpsink = GST_UDPSINK (GST_OBJECT_PARENT (pad));
274 if (udpsink->clock) {
275 GstClockID id = gst_clock_new_single_shot_id (udpsink->clock, GST_BUFFER_TIMESTAMP (buf));
277 GST_DEBUG ("udpsink: clock wait: %" G_GUINT64_FORMAT "\n", GST_BUFFER_TIMESTAMP (buf));
278 gst_element_clock_wait (GST_ELEMENT (udpsink), id, NULL);
279 gst_clock_id_free (id);
282 tolen = sizeof(udpsink->theiraddr);
284 if (sendto (udpsink->sock, GST_BUFFER_DATA (buf),
285 GST_BUFFER_SIZE (buf), 0, (struct sockaddr *) &udpsink->theiraddr,
290 /*for (i = 0; i < GST_BUFFER_SIZE (buf); i += udpsink->mtu) {
291 if (GST_BUFFER_SIZE (buf) - i > udpsink->mtu) {
292 if (sendto (udpsink->sock, GST_BUFFER_DATA (buf) + i,
293 udpsink->mtu, 0, (struct sockaddr *) &udpsink->theiraddr,
299 if (sendto (udpsink->sock, GST_BUFFER_DATA (buf) + i,
300 GST_BUFFER_SIZE (buf) -i, 0,
301 (struct sockaddr *) &udpsink->theiraddr, tolen) == -1) {
307 gst_buffer_unref(buf);
311 gst_udpsink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
315 /* it's not null if we got it, but it might not be ours */
316 g_return_if_fail(GST_IS_UDPSINK(object));
317 udpsink = GST_UDPSINK(object);
321 if (udpsink->host != NULL) g_free(udpsink->host);
322 if (g_value_get_string (value) == NULL)
323 udpsink->host = NULL;
325 udpsink->host = g_strdup (g_value_get_string (value));
328 udpsink->port = g_value_get_int (value);
331 udpsink->control = g_value_get_enum (value);
334 udpsink->mtu = g_value_get_int (value);
342 gst_udpsink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
346 /* it's not null if we got it, but it might not be ours */
347 g_return_if_fail(GST_IS_UDPSINK(object));
348 udpsink = GST_UDPSINK(object);
352 g_value_set_string (value, udpsink->host);
355 g_value_set_int (value, udpsink->port);
358 g_value_set_enum (value, udpsink->control);
361 g_value_set_int (value, udpsink->mtu);
364 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
370 /* create a socket for sending to remote machine */
372 gst_udpsink_init_send (GstUDPSink *sink)
378 bzero (&sink->theiraddr, sizeof (sink->theiraddr));
379 sink->theiraddr.sin_family = AF_INET; /* host byte order */
380 sink->theiraddr.sin_port = htons (sink->port); /* short, network byte order */
382 /* if its an IP address */
383 if (inet_aton (sink->host, &addr)) {
384 /* check if its a multicast address */
385 if ((ntohl (addr.s_addr) & 0xe0000000) == 0xe0000000) {
386 sink->multi_addr.imr_multiaddr.s_addr = addr.s_addr;
387 sink->multi_addr.imr_interface.s_addr = INADDR_ANY;
389 sink->theiraddr.sin_addr = sink->multi_addr.imr_multiaddr;
391 /* Joining the multicast group */
392 setsockopt (sink->sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, &sink->multi_addr, sizeof(sink->multi_addr));
396 sink->theiraddr.sin_addr =
397 *((struct in_addr *) &addr);
401 /* we dont need to lookup for localhost */
402 else if (strcmp (sink->host, UDP_DEFAULT_HOST) == 0 &&
403 inet_aton ("127.0.0.1", &addr)) {
404 sink->theiraddr.sin_addr =
405 *((struct in_addr *) &addr);
408 /* if its a hostname */
409 else if ((he = gethostbyname (sink->host))) {
410 sink->theiraddr.sin_addr = *((struct in_addr *) he->h_addr);
414 perror("hostname lookup error?");
418 if ((sink->sock = socket (AF_INET, SOCK_DGRAM, 0)) == -1) {
424 setsockopt (sink->sock, SOL_SOCKET, SO_BROADCAST, &bc_val, sizeof (bc_val));
426 GST_FLAG_SET (sink, GST_UDPSINK_OPEN);
432 gst_udpsink_close (GstUDPSink *sink)
436 GST_FLAG_UNSET (sink, GST_UDPSINK_OPEN);
439 static GstElementStateReturn
440 gst_udpsink_change_state (GstElement *element)
442 g_return_val_if_fail (GST_IS_UDPSINK (element), GST_STATE_FAILURE);
444 if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
445 if (GST_FLAG_IS_SET (element, GST_UDPSINK_OPEN))
446 gst_udpsink_close (GST_UDPSINK (element));
448 if (!GST_FLAG_IS_SET (element, GST_UDPSINK_OPEN)) {
449 if (!gst_udpsink_init_send (GST_UDPSINK (element)))
450 return GST_STATE_FAILURE;
454 if (GST_ELEMENT_CLASS (parent_class)->change_state)
455 return GST_ELEMENT_CLASS (parent_class)->change_state (element);
457 return GST_STATE_SUCCESS;