gst/udp/: (new)

Original commit message from CVS:
* gst/udp/Makefile.am:
* gst/udp/gstudp.c:
* gst/udp/gstdynudpsink.c: (new)
* gst/udp/gstdynudpsink.h: (new)
Added new element (udpdynsink) that receives GstNetBuffers and sends the
udp packets to the source given in the buffer. It's used by rtpsession
element for now.
* gst/udp/gstudpsrc.c:
Fixed memory leak.

1 files changed, 334 insertions, 0 deletions

diff --git a/gst/udp/gstdynudpsink.c b/gst/udp/gstdynudpsink.c
new file mode 100644
index 00000000..44a95daa
--- /dev/null
+++ b/gst/udp/gstdynudpsink.c
@@ -0,0 +1,334 @@
+/* GStreamer
+ * Copyright (C) <2005> Philippe Khalaf <burger@speedy.org>
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "gstudp-marshal.h"
+#include "gstdynudpsink.h"
+#include <gst/net/gstnetbuffer.h>
+
+GST_DEBUG_CATEGORY (dynudpsink_debug);
+#define GST_CAT_DEFAULT (dynudpsink_debug)
+
+static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+/* elementfactory information */
+static GstElementDetails gst_dynudpsink_details =
+GST_ELEMENT_DETAILS ("UDP packet sender",
+    "Sink/Network",
+    "Send data over the network via UDP",
+    "Philippe Khalaf <burger@speedy.org>");
+
+/* DynUDPSink signals and args */
+enum
+{
+  /* methods */
+  SIGNAL_GET_STATS,
+
+  /* signals */
+
+  /* FILL ME */
+  LAST_SIGNAL
+};
+
+enum
+{
+  PROP_0,
+  /* FILL ME */
+};
+
+static void gst_dynudpsink_base_init (gpointer g_class);
+static void gst_dynudpsink_class_init (GstDynUDPSink * klass);
+static void gst_dynudpsink_init (GstDynUDPSink * udpsink);
+static void gst_dynudpsink_finalize (GObject * object);
+
+static void gst_dynudpsink_get_times (GstBaseSink * sink, GstBuffer * buffer,
+    GstClockTime * start, GstClockTime * end);
+static GstFlowReturn gst_dynudpsink_render (GstBaseSink * sink,
+    GstBuffer * buffer);
+static void gst_dynudpsink_close (GstDynUDPSink * sink);
+static GstElementStateReturn gst_dynudpsink_change_state (GstElement * element);
+
+static void gst_dynudpsink_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec);
+static void gst_dynudpsink_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec);
+
+static GstElementClass *parent_class = NULL;
+
+static guint gst_dynudpsink_signals[LAST_SIGNAL] = { 0 };
+
+GType
+gst_dynudpsink_get_type (void)
+{
+  static GType dynudpsink_type = 0;
+
+  if (!dynudpsink_type) {
+    static const GTypeInfo dynudpsink_info = {
+      sizeof (GstDynUDPSinkClass),
+      gst_dynudpsink_base_init,
+      NULL,
+      (GClassInitFunc) gst_dynudpsink_class_init,
+      NULL,
+      NULL,
+      sizeof (GstDynUDPSink),
+      0,
+      (GInstanceInitFunc) gst_dynudpsink_init,
+      NULL
+    };
+
+    dynudpsink_type =
+        g_type_register_static (GST_TYPE_BASESINK, "GstDynUDPSink",
+        &dynudpsink_info, 0);
+  }
+  return dynudpsink_type;
+}
+
+static void
+gst_dynudpsink_base_init (gpointer g_class)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&sink_template));
+
+  gst_element_class_set_details (element_class, &gst_dynudpsink_details);
+}
+
+static void
+gst_dynudpsink_class_init (GstDynUDPSink * klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+  GstBaseSinkClass *gstbasesink_class;
+
+  gobject_class = (GObjectClass *) klass;
+  gstelement_class = (GstElementClass *) klass;
+  gstbasesink_class = (GstBaseSinkClass *) klass;
+
+  parent_class = g_type_class_ref (GST_TYPE_BASESINK);
+
+  gobject_class->set_property = gst_dynudpsink_set_property;
+  gobject_class->get_property = gst_dynudpsink_get_property;
+  gobject_class->finalize = gst_dynudpsink_finalize;
+
+  gst_dynudpsink_signals[SIGNAL_GET_STATS] =
+      g_signal_new ("get-stats", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
+      G_STRUCT_OFFSET (GstDynUDPSinkClass, get_stats),
+      NULL, NULL, gst_udp_marshal_BOXED__STRING_INT, G_TYPE_VALUE_ARRAY, 2,
+      G_TYPE_STRING, G_TYPE_INT);
+
+  gstelement_class->change_state = gst_dynudpsink_change_state;
+
+  gstbasesink_class->get_times = gst_dynudpsink_get_times;
+  gstbasesink_class->render = gst_dynudpsink_render;
+
+  GST_DEBUG_CATEGORY_INIT (dynudpsink_debug, "dynudpsink", 0, "UDP sink");
+}
+
+
+static void
+gst_dynudpsink_init (GstDynUDPSink * sink)
+{
+}
+
+static void
+gst_dynudpsink_finalize (GObject * object)
+{
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_dynudpsink_get_times (GstBaseSink * sink, GstBuffer * buffer,
+    GstClockTime * start, GstClockTime * end)
+{
+  *start = GST_BUFFER_TIMESTAMP (buffer);
+  *end = *start + GST_BUFFER_DURATION (buffer);
+}
+
+static GstFlowReturn
+gst_dynudpsink_render (GstBaseSink * bsink, GstBuffer * buffer)
+{
+  GstDynUDPSink *sink;
+  gint ret, size;
+  guint8 *data;
+  GstNetBuffer *netbuf;
+  struct sockaddr_in theiraddr;
+
+  memset (&theiraddr, 0, sizeof (theiraddr));
+
+  if (GST_IS_NETBUFFER (buffer)) {
+    netbuf = GST_NETBUFFER (buffer);
+  } else {
+    GST_DEBUG ("Received buffer is not a GstNetBuffer, skipping");
+    return GST_FLOW_OK;
+  }
+
+  sink = GST_DYNUDPSINK (bsink);
+
+  size = GST_BUFFER_SIZE (netbuf);
+  data = GST_BUFFER_DATA (netbuf);
+
+  GST_DEBUG ("about to send %d bytes", size);
+  guint16 destport;
+  guint32 destaddr;
+
+  // let's get the address from the netbuffer
+  gst_netaddress_get_ip4_address (&netbuf->to, &destaddr, &destport);
+
+  GST_DEBUG ("sending %d bytes to client %d port %d", size, destaddr, destport);
+
+  theiraddr.sin_family = AF_INET;
+  theiraddr.sin_addr.s_addr = destaddr;
+  theiraddr.sin_port = destport;
+  ret = sendto (sink->sock, data, size, 0,
+      (struct sockaddr *) &theiraddr, sizeof (theiraddr));
+
+  if (ret < 0) {
+    if (errno != EINTR && errno != EAGAIN) {
+      goto send_error;
+    }
+  }
+
+  GST_DEBUG ("sent %d bytes", size);
+
+  return GST_FLOW_OK;
+
+send_error:
+  {
+    GST_DEBUG ("got send error %s (%d)", g_strerror (errno), errno);
+    return GST_FLOW_ERROR;
+  }
+}
+
+static void
+gst_dynudpsink_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstDynUDPSink *udpsink;
+
+  udpsink = GST_DYNUDPSINK (object);
+
+  switch (prop_id) {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_dynudpsink_get_property (GObject * object, guint prop_id, GValue * value,
+    GParamSpec * pspec)
+{
+  GstDynUDPSink *udpsink;
+
+  udpsink = GST_DYNUDPSINK (object);
+
+  switch (prop_id) {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+
+/* create a socket for sending to remote machine */
+static gboolean
+gst_dynudpsink_init_send (GstDynUDPSink * sink)
+{
+  guint bc_val;
+  gint ret;
+
+  /* create sender socket */
+  if ((sink->sock = socket (AF_INET, SOCK_DGRAM, 0)) == -1)
+    goto no_socket;
+
+  bc_val = 1;
+  if ((ret =
+          setsockopt (sink->sock, SOL_SOCKET, SO_BROADCAST, &bc_val,
+              sizeof (bc_val))) < 0)
+    goto no_broadcast;
+
+  return TRUE;
+
+  /* ERRORS */
+no_socket:
+  {
+    perror ("socket");
+    return FALSE;
+  }
+no_broadcast:
+  {
+    perror ("setsockopt");
+    return FALSE;
+  }
+}
+
+GValueArray *
+gst_dynudpsink_get_stats (GstDynUDPSink * sink, const gchar * host, gint port)
+{
+  return NULL;
+}
+
+static void
+gst_dynudpsink_close (GstDynUDPSink * sink)
+{
+  close (sink->sock);
+}
+
+static GstElementStateReturn
+gst_dynudpsink_change_state (GstElement * element)
+{
+  GstElementStateReturn ret;
+  GstDynUDPSink *sink;
+  gint transition;
+
+  sink = GST_DYNUDPSINK (element);
+  transition = GST_STATE_TRANSITION (element);
+
+  switch (transition) {
+    case GST_STATE_READY_TO_PAUSED:
+      if (!gst_dynudpsink_init_send (sink))
+        goto no_init;
+      break;
+    default:
+      break;
+  }
+
+  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
+
+  switch (transition) {
+    case GST_STATE_PAUSED_TO_READY:
+      gst_dynudpsink_close (sink);
+      break;
+    default:
+      break;
+  }
+  return ret;
+
+  /* ERRORS */
+no_init:
+  {
+    return GST_STATE_FAILURE;
+  }
+}