Initial revision

Original commit message from CVS:
Initial revision

1 files changed, 301 insertions, 0 deletions

diff --git a/gst/udp/gstudpsink.c b/gst/udp/gstudpsink.c
new file mode 100644
index 00000000..81d7a952
--- /dev/null
+++ b/gst/udp/gstudpsink.c
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+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#include "gstudpsink.h"
+
+#define UDP_DEFAULT_HOST	"localhost"
+#define UDP_DEFAULT_PORT	4951
+
+/* elementfactory information */
+GstElementDetails gst_udpsink_details = {
+  "UDP packet sender",
+  "Transport/",
+  "",
+  VERSION,
+  "Wim Taymans <wim.taymans@chello.be>",
+  "(C) 2001",
+};
+
+/* UDPSink signals and args */
+enum {
+  FRAME_ENCODED,
+  /* FILL ME */
+  LAST_SIGNAL
+};
+
+enum {
+  ARG_0,
+  ARG_HOST,
+  ARG_PORT,
+  /* FILL ME */
+};
+
+static void		gst_udpsink_class_init		(GstUDPSink *klass);
+static void		gst_udpsink_init		(GstUDPSink *udpsink);
+
+static void		gst_udpsink_chain		(GstPad *pad,GstBuffer *buf);
+static GstElementStateReturn gst_udpsink_change_state 	(GstElement *element);
+
+static void 		gst_udpsink_set_property 	(GObject *object, guint prop_id, 
+							 const GValue *value, GParamSpec *pspec);
+static void 		gst_udpsink_get_property 	(GObject *object, guint prop_id, 
+							 GValue *value, GParamSpec *pspec);
+
+
+static GstElementClass *parent_class = NULL;
+//static guint gst_udpsink_signals[LAST_SIGNAL] = { 0 };
+
+GType
+gst_udpsink_get_type (void)
+{
+  static GType udpsink_type = 0;
+
+
+  if (!udpsink_type) {
+    static const GTypeInfo udpsink_info = {
+      sizeof(GstUDPSinkClass),
+      NULL,
+      NULL,
+      (GClassInitFunc)gst_udpsink_class_init,
+      NULL,
+      NULL,
+      sizeof(GstUDPSink),
+      0,
+      (GInstanceInitFunc)gst_udpsink_init,
+      NULL
+    };
+    udpsink_type = g_type_register_static (GST_TYPE_ELEMENT, "GstUDPSink", &udpsink_info, 0);
+  }
+  return udpsink_type;
+}
+
+static void
+gst_udpsink_class_init (GstUDPSink *klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+
+  gobject_class = (GObjectClass*) klass;
+  gstelement_class = (GstElementClass*) klass;
+
+  parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+
+  g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HOST,
+    g_param_spec_string ("host", "nost", "The host to send the packets to",
+                         UDP_DEFAULT_HOST, G_PARAM_READWRITE)); 
+  g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PORT,
+    g_param_spec_int ("port", "port", "The port to send the packets to",
+                       0, 32768, UDP_DEFAULT_PORT, G_PARAM_READWRITE)); 
+
+  gobject_class->set_property = gst_udpsink_set_property;
+  gobject_class->get_property = gst_udpsink_get_property;
+
+  gstelement_class->change_state = gst_udpsink_change_state;
+}
+
+
+static void
+gst_udpsink_newcaps (GstPad *pad, GstCaps *caps)
+{
+  GstUDPSink *udpsink;
+  struct sockaddr_in serv_addr;
+  struct hostent *serverhost;
+  int fd;
+  FILE *f;
+#ifndef GST_DISABLE_LOADSAVE
+  xmlDocPtr doc;
+#endif
+
+  udpsink = GST_UDPSINK (gst_pad_get_parent (pad));
+
+  fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+  if (fd < 0) {
+     perror("socket");
+     return;
+  }
+  memset(&serv_addr, 0, sizeof(serv_addr));
+  /* its a name rather than an ipnum */
+  serverhost = gethostbyname(udpsink->host);
+  if (serverhost == (struct hostent *)0) {
+    perror("gethostbyname");
+    return;
+  }
+  memmove(&serv_addr.sin_addr,serverhost->h_addr, serverhost->h_length);
+
+  serv_addr.sin_family = AF_INET;
+  serv_addr.sin_port = htons(udpsink->port);
+
+  if (connect(fd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) != 0) {
+    g_printerr ("udpsink: connect to %s port %d failed: %s\n",
+		udpsink->host, udpsink->port, sys_errlist[errno]);
+    return;
+  }
+  f = fdopen (dup (fd), "wb");
+
+#ifndef GST_DISABLE_LOADSAVE
+  doc = xmlNewDoc ("1.0");
+  doc->xmlRootNode = xmlNewDocNode (doc, NULL, "NewCaps", NULL);
+
+  gst_caps_save_thyself (caps, doc->xmlRootNode);
+  xmlDocDump(f, doc);
+#endif
+
+  fclose (f);
+  close (fd);
+}
+
+static void
+gst_udpsink_init (GstUDPSink *udpsink)
+{
+  /* create the sink and src pads */
+  udpsink->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
+  gst_element_add_pad (GST_ELEMENT (udpsink), udpsink->sinkpad);
+  gst_pad_set_chain_function (udpsink->sinkpad, gst_udpsink_chain);
+  gst_pad_set_newcaps_function (udpsink->sinkpad, gst_udpsink_newcaps);
+
+  udpsink->host = g_strdup (UDP_DEFAULT_HOST);
+  udpsink->port = UDP_DEFAULT_PORT;
+}
+
+static void
+gst_udpsink_chain (GstPad *pad, GstBuffer *buf)
+{
+  GstUDPSink *udpsink;
+  int tolen;
+
+  g_return_if_fail (pad != NULL);
+  g_return_if_fail (GST_IS_PAD (pad));
+  g_return_if_fail (buf != NULL);
+
+  udpsink = GST_UDPSINK (GST_OBJECT_PARENT (pad));
+
+  tolen = sizeof(udpsink->theiraddr);
+
+  if (sendto (udpsink->sock, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf), 0, 
+			  (struct sockaddr *) &udpsink->theiraddr, tolen) == -1)
+  {
+    perror("sending");
+  } 
+
+  gst_buffer_unref(buf);
+}
+
+static void
+gst_udpsink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+  GstUDPSink *udpsink;
+
+  /* it's not null if we got it, but it might not be ours */
+  g_return_if_fail(GST_IS_UDPSINK(object));
+  udpsink = GST_UDPSINK(object);
+
+  switch (prop_id) {
+    case ARG_HOST:
+      if (udpsink->host != NULL) g_free(udpsink->host);
+      if (g_value_get_string (value) == NULL)
+        udpsink->host = NULL;
+      else
+        udpsink->host = g_strdup (g_value_get_string (value));
+      break;
+    case ARG_PORT:
+        udpsink->port = g_value_get_int (value);
+      break;
+    default:
+      break;
+  }
+}
+
+static void
+gst_udpsink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+  GstUDPSink *udpsink;
+
+  /* it's not null if we got it, but it might not be ours */
+  g_return_if_fail(GST_IS_UDPSINK(object));
+  udpsink = GST_UDPSINK(object);
+
+  switch (prop_id) {
+    case ARG_HOST:
+      g_value_set_string (value, udpsink->host);
+      break;
+    case ARG_PORT:
+      g_value_set_int (value, udpsink->port);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+
+// create a socket for sending to remote machine
+static gboolean
+gst_udpsink_init_send (GstUDPSink *sink)
+{
+  struct hostent *he;
+
+  bzero (&sink->theiraddr, sizeof (sink->theiraddr));
+  sink->theiraddr.sin_family = AF_INET;         // host byte order
+  sink->theiraddr.sin_port = htons (sink->port);     // short, network byte order
+  if ((he = gethostbyname (sink->host)) == NULL) {
+    perror("gethostbyname");
+    return FALSE;
+  }
+  sink->theiraddr.sin_addr = *((struct in_addr *) he->h_addr);
+
+  if ((sink->sock = socket (AF_INET, SOCK_DGRAM, 0)) == -1) {
+    perror("socket");
+    return FALSE;
+  }
+
+  GST_FLAG_SET (sink, GST_UDPSINK_OPEN);
+
+  return TRUE;
+}
+
+static void
+gst_udpsink_close (GstUDPSink *sink)
+{
+  close (sink->sock);
+
+  GST_FLAG_UNSET (sink, GST_UDPSINK_OPEN);
+}
+
+static GstElementStateReturn
+gst_udpsink_change_state (GstElement *element)
+{
+  g_return_val_if_fail (GST_IS_UDPSINK (element), GST_STATE_FAILURE);
+
+  if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
+    if (GST_FLAG_IS_SET (element, GST_UDPSINK_OPEN))
+      gst_udpsink_close (GST_UDPSINK (element));
+  } else {
+    if (!GST_FLAG_IS_SET (element, GST_UDPSINK_OPEN)) {
+      if (!gst_udpsink_init_send (GST_UDPSINK (element)))
+        return GST_STATE_FAILURE;
+    }
+  }
+
+  if (GST_ELEMENT_CLASS (parent_class)->change_state)
+    return GST_ELEMENT_CLASS (parent_class)->change_state (element);
+
+  return GST_STATE_SUCCESS;
+}
+