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.
21 #include "gstudpsink.h"
23 #define UDP_DEFAULT_HOST "localhost"
24 #define UDP_DEFAULT_PORT 4951
25 #define UDP_DEFAULT_CONTROL 1
27 /* elementfactory information */
28 GstElementDetails gst_udpsink_details = {
32 "Send data over the network via UDP",
34 "Wim Taymans <wim.taymans@chello.be>",
38 /* UDPSink signals and args */
54 #define GST_TYPE_UDPSINK_CONTROL (gst_udpsink_control_get_type())
56 gst_udpsink_control_get_type(void) {
57 static GType udpsink_control_type = 0;
58 static GEnumValue udpsink_control[] = {
59 {CONTROL_NONE, "1", "none"},
60 {CONTROL_UDP, "2", "udp"},
61 {CONTROL_TCP, "3", "tcp"},
62 {CONTROL_ZERO, NULL, NULL},
64 if (!udpsink_control_type) {
65 udpsink_control_type = g_enum_register_static("GstUDPSinkControl", udpsink_control);
67 return udpsink_control_type;
70 static void gst_udpsink_class_init (GstUDPSink *klass);
71 static void gst_udpsink_init (GstUDPSink *udpsink);
73 static void gst_udpsink_set_clock (GstElement *element, GstClock *clock);
75 static void gst_udpsink_chain (GstPad *pad,GstBuffer *buf);
76 static GstElementStateReturn gst_udpsink_change_state (GstElement *element);
78 static void gst_udpsink_set_property (GObject *object, guint prop_id,
79 const GValue *value, GParamSpec *pspec);
80 static void gst_udpsink_get_property (GObject *object, guint prop_id,
81 GValue *value, GParamSpec *pspec);
84 static GstElementClass *parent_class = NULL;
85 /*static guint gst_udpsink_signals[LAST_SIGNAL] = { 0 }; */
88 gst_udpsink_get_type (void)
90 static GType udpsink_type = 0;
94 static const GTypeInfo udpsink_info = {
95 sizeof(GstUDPSinkClass),
98 (GClassInitFunc)gst_udpsink_class_init,
103 (GInstanceInitFunc)gst_udpsink_init,
106 udpsink_type = g_type_register_static (GST_TYPE_ELEMENT, "GstUDPSink", &udpsink_info, 0);
112 gst_udpsink_class_init (GstUDPSink *klass)
114 GObjectClass *gobject_class;
115 GstElementClass *gstelement_class;
117 gobject_class = (GObjectClass*) klass;
118 gstelement_class = (GstElementClass*) klass;
120 parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
122 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HOST,
123 g_param_spec_string ("host", "nost", "The host to send the packets to",
124 UDP_DEFAULT_HOST, G_PARAM_READWRITE));
125 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PORT,
126 g_param_spec_int ("port", "port", "The port to send the packets to",
127 0, 32768, UDP_DEFAULT_PORT, G_PARAM_READWRITE));
128 g_object_class_install_property (gobject_class, ARG_CONTROL,
129 g_param_spec_enum ("control", "control", "The type of control",
130 GST_TYPE_UDPSINK_CONTROL, CONTROL_UDP, G_PARAM_READWRITE));
131 g_object_class_install_property (gobject_class, ARG_MTU,
132 g_param_spec_int ("mtu", "mtu", "mtu", G_MININT, G_MAXINT,
133 0, G_PARAM_READWRITE)); /* CHECKME */
135 gobject_class->set_property = gst_udpsink_set_property;
136 gobject_class->get_property = gst_udpsink_get_property;
138 gstelement_class->change_state = gst_udpsink_change_state;
139 gstelement_class->set_clock = gst_udpsink_set_clock;
143 static GstPadLinkReturn
144 gst_udpsink_sinkconnect (GstPad *pad, GstCaps *caps)
147 struct sockaddr_in serv_addr;
148 struct hostent *serverhost;
152 #ifndef GST_DISABLE_LOADSAVE
157 udpsink = GST_UDPSINK (gst_pad_get_parent (pad));
159 memset(&serv_addr, 0, sizeof(serv_addr));
161 /* its a name rather than an ipnum */
162 serverhost = gethostbyname(udpsink->host);
163 if (serverhost == (struct hostent *)0) {
164 perror("gethostbyname");
165 return GST_PAD_LINK_REFUSED;
168 memmove(&serv_addr.sin_addr,serverhost->h_addr, serverhost->h_length);
170 serv_addr.sin_family = AF_INET;
171 serv_addr.sin_port = htons(udpsink->port+1);
173 doc = xmlNewDoc ("1.0");
174 doc->xmlRootNode = xmlNewDocNode (doc, NULL, "NewCaps", NULL);
176 gst_caps_save_thyself (caps, doc->xmlRootNode);
178 switch (udpsink->control) {
180 if ((fd = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) {
182 return GST_PAD_LINK_REFUSED;
185 /* We can only do broadcast in udp */
187 setsockopt (fd,SOL_SOCKET, SO_BROADCAST, &bc_val, sizeof (bc_val));
189 xmlDocDumpMemory(doc, &buf, &buf_size);
191 if (sendto (fd, buf, buf_size, 0, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) == -1)
194 return GST_PAD_LINK_REFUSED;
200 if ((fd = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
202 return GST_PAD_LINK_REFUSED;
205 if (connect(fd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) != 0) {
206 g_printerr ("udpsink: connect to %s port %d failed: %s\n",
207 udpsink->host, udpsink->port, g_strerror(errno));
208 return GST_PAD_LINK_REFUSED;
211 f = fdopen (dup (fd), "wb");
219 return GST_PAD_LINK_OK;
222 return GST_PAD_LINK_REFUSED;
227 return GST_PAD_LINK_OK;
231 gst_udpsink_set_clock (GstElement *element, GstClock *clock)
235 udpsink = GST_UDPSINK (element);
237 udpsink->clock = clock;
241 gst_udpsink_init (GstUDPSink *udpsink)
243 /* create the sink and src pads */
244 udpsink->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
245 gst_element_add_pad (GST_ELEMENT (udpsink), udpsink->sinkpad);
246 gst_pad_set_chain_function (udpsink->sinkpad, gst_udpsink_chain);
247 gst_pad_set_link_function (udpsink->sinkpad, gst_udpsink_sinkconnect);
249 udpsink->host = g_strdup (UDP_DEFAULT_HOST);
250 udpsink->port = UDP_DEFAULT_PORT;
251 udpsink->control = CONTROL_UDP;
254 udpsink->clock = NULL;
258 gst_udpsink_chain (GstPad *pad, GstBuffer *buf)
263 g_return_if_fail (pad != NULL);
264 g_return_if_fail (GST_IS_PAD (pad));
265 g_return_if_fail (buf != NULL);
267 udpsink = GST_UDPSINK (GST_OBJECT_PARENT (pad));
269 if (udpsink->clock) {
270 GstClockID id = gst_clock_new_single_shot_id (udpsink->clock, GST_BUFFER_TIMESTAMP (buf));
272 GST_DEBUG (0, "udpsink: clock wait: %llu\n", GST_BUFFER_TIMESTAMP (buf));
273 gst_element_clock_wait (GST_ELEMENT (udpsink), id, NULL);
274 gst_clock_id_free (id);
277 tolen = sizeof(udpsink->theiraddr);
279 for (i = 0; i < GST_BUFFER_SIZE (buf); i += udpsink->mtu) {
280 if (GST_BUFFER_SIZE (buf) - i > udpsink->mtu) {
281 if (sendto (udpsink->sock, GST_BUFFER_DATA (buf) + i,
282 udpsink->mtu, 0, (struct sockaddr *) &udpsink->theiraddr,
288 if (sendto (udpsink->sock, GST_BUFFER_DATA (buf) + i,
289 GST_BUFFER_SIZE (buf) -i, 0,
290 (struct sockaddr *) &udpsink->theiraddr, tolen) == -1) {
296 gst_buffer_unref(buf);
300 gst_udpsink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
304 /* it's not null if we got it, but it might not be ours */
305 g_return_if_fail(GST_IS_UDPSINK(object));
306 udpsink = GST_UDPSINK(object);
310 if (udpsink->host != NULL) g_free(udpsink->host);
311 if (g_value_get_string (value) == NULL)
312 udpsink->host = NULL;
314 udpsink->host = g_strdup (g_value_get_string (value));
317 udpsink->port = g_value_get_int (value);
320 udpsink->control = g_value_get_enum (value);
323 udpsink->mtu = g_value_get_int (value);
331 gst_udpsink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
335 /* it's not null if we got it, but it might not be ours */
336 g_return_if_fail(GST_IS_UDPSINK(object));
337 udpsink = GST_UDPSINK(object);
341 g_value_set_string (value, udpsink->host);
344 g_value_set_int (value, udpsink->port);
347 g_value_set_enum (value, udpsink->control);
350 g_value_set_int (value, udpsink->mtu);
353 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
359 /* create a socket for sending to remote machine */
361 gst_udpsink_init_send (GstUDPSink *sink)
366 bzero (&sink->theiraddr, sizeof (sink->theiraddr));
367 sink->theiraddr.sin_family = AF_INET; /* host byte order */
368 sink->theiraddr.sin_port = htons (sink->port); /* short, network byte order */
369 if ((he = gethostbyname (sink->host)) == NULL) {
370 perror("gethostbyname");
373 sink->theiraddr.sin_addr = *((struct in_addr *) he->h_addr);
375 if ((sink->sock = socket (AF_INET, SOCK_DGRAM, 0)) == -1) {
381 setsockopt (sink->sock, SOL_SOCKET, SO_BROADCAST, &bc_val, sizeof (bc_val));
383 GST_FLAG_SET (sink, GST_UDPSINK_OPEN);
389 gst_udpsink_close (GstUDPSink *sink)
393 GST_FLAG_UNSET (sink, GST_UDPSINK_OPEN);
396 static GstElementStateReturn
397 gst_udpsink_change_state (GstElement *element)
399 g_return_val_if_fail (GST_IS_UDPSINK (element), GST_STATE_FAILURE);
401 if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
402 if (GST_FLAG_IS_SET (element, GST_UDPSINK_OPEN))
403 gst_udpsink_close (GST_UDPSINK (element));
405 if (!GST_FLAG_IS_SET (element, GST_UDPSINK_OPEN)) {
406 if (!gst_udpsink_init_send (GST_UDPSINK (element)))
407 return GST_STATE_FAILURE;
411 if (GST_ELEMENT_CLASS (parent_class)->change_state)
412 return GST_ELEMENT_CLASS (parent_class)->change_state (element);
414 return GST_STATE_SUCCESS;