Add dccp plugin. Fixes #542390.

Original commit message from CVS:
patch by: Leandro Melo de Sales <leandroal@gmail.com>
* configure.ac:
* docs/plugins/Makefile.am:
* docs/plugins/gst-plugins-bad-plugins-docs.sgml:
* docs/plugins/gst-plugins-bad-plugins-sections.txt:
* docs/plugins/gst-plugins-bad-plugins.args:
* docs/plugins/gst-plugins-bad-plugins.hierarchy:
* docs/plugins/gst-plugins-bad-plugins.interfaces:
* docs/plugins/gst-plugins-bad-plugins.prerequisites:
* docs/plugins/gst-plugins-bad-plugins.signals:
* docs/plugins/inspect/plugin-dccp.xml:
* gst/dccp/Makefile.am:
* gst/dccp/gstdccp.c:
* gst/dccp/gstdccp.h:
* gst/dccp/gstdccpclientsink.c:
* gst/dccp/gstdccpclientsink.h:
* gst/dccp/gstdccpclientsrc.c:
* gst/dccp/gstdccpclientsrc.h:
* gst/dccp/gstdccpplugin.c:
* gst/dccp/gstdccpserversink.c:
* gst/dccp/gstdccpserversink.h:
* gst/dccp/gstdccpserversrc.c:
* gst/dccp/gstdccpserversrc.h:
* tests/icles/dccp/README:
* tests/icles/dccp/call/README:
* tests/icles/dccp/call/DCCPClient.c:
* tests/icles/dccp/call/DCCPServer.c:
* tests/icles/dccp/file/DCCPClientSaveFile.c:
* tests/icles/dccp/file/DCCPServerSendFile.c:
* tests/icles/dccp/mic/DCCPClientPlayMic.c:
* tests/icles/dccp/mic/DCCPServerMic.c:
* tests/icles/dccp/mp3/DCCPClientPlayMP3.c:
* tests/icles/dccp/mp3/DCCPServerSendMP3.c:
* tests/icles/dccp/mp3Speex/DCCPClientPlaySpeexMP3.c:
* tests/icles/dccp/mp3Speex/DCCPServerSendSpeexMP3.c:
* tests/icles/dccp/mp3Stream/DCCPClientPlayMP3Stream.c:
* tests/icles/dccp/mp3Stream/DCCPServerSendMP3Stream.c:
Add dccp plugin. Fixes #542390.

12 files changed, 2548 insertions, 0 deletions

diff --git a/gst/dccp/Makefile.am b/gst/dccp/Makefile.am
new file mode 100644
index 00000000..647d2500
--- /dev/null
+++ b/gst/dccp/Makefile.am
@@ -0,0 +1,36 @@
+# plugindir is set in configure
+
+##############################################################################
+# change libgstplugin.la to something more suitable, e.g. libmysomething.la  #
+##############################################################################
+plugin_LTLIBRARIES = libgstdccp.la
+
+##############################################################################
+# for the next set of variables, rename the prefix if you renamed the .la,   #
+#  e.g. libgstplugin_la_SOURCES => libmysomething_la_SOURCES                 #
+#       libgstplugin_la_CFLAGS  => libmysomething_la_CFLAGS                  #
+#       libgstplugin_la_LIBADD  => libmysomething_la_LIBADD                  #
+#       libgstplugin_la_LDFLAGS => libmysomething_la_LDFLAGS                 #
+##############################################################################
+
+# sources used to compile this plug-in
+libgstdccp_la_SOURCES = gstdccpplugin.c \
+			gstdccp.c \
+			gstdccpserversink.c \
+			gstdccpserversrc.c \
+			gstdccpclientsink.c \
+			gstdccpclientsrc.c
+
+# flags used to compile this plugin
+# add other _CFLAGS and _LIBS as needed
+libgstdccp_la_CFLAGS = $(GST_CFLAGS)
+libgstdccp_la_LIBADD = $(GST_BASE_LIBS) $(GST_LIBS)
+libgstdccp_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+# headers we need but don't want installed
+noinst_HEADERS = gstdccp.h \
+                 gstdccpserversink.h \
+                 gstdccpserversrc.h \
+                 gstdccpclientsink.h \
+                 gstdccpclientsrc.h
+
diff --git a/gst/dccp/gstdccp.c b/gst/dccp/gstdccp.c
new file mode 100644
index 00000000..a53af7dc
--- /dev/null
+++ b/gst/dccp/gstdccp.c
@@ -0,0 +1,450 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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 "gstdccp.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <string.h>
+
+/* Prototypes and definitions for private functions and not exported via gstdccp.h */
+gint gst_dccp_socket_write (int socket, const void *buf, size_t count,
+    int packet_size);
+gboolean gst_dccp_socket_connected (GstElement * element, int server_sock_fd);
+struct sockaddr_in gst_dccp_create_sockaddr (GstElement * element, gchar * ip,
+    int port);
+
+/* Resolves host to IP address
+ * @return a gchar pointer containing the ip address or NULL
+ */
+gchar *
+gst_dccp_host_to_ip (GstElement * element, const gchar * host)
+{
+  struct hostent *hostinfo;
+  char **addrs;
+  gchar *ip;
+  struct in_addr addr;
+
+  GST_DEBUG_OBJECT (element, "resolving host %s", host);
+
+  /* first check if it already is an IP address */
+  if (inet_aton (host, &addr)) {
+    ip = g_strdup (host);
+    GST_DEBUG_OBJECT (element, "resolved to IP %s", ip);
+    return ip;
+  }
+
+  /* perform a name lookup */
+  if (!(hostinfo = gethostbyname (host))) {
+    GST_ELEMENT_ERROR (element, RESOURCE, NOT_FOUND, (NULL),
+        ("Could not find IP address for host \"%s\".", host));
+    return NULL;
+  }
+
+  if (hostinfo->h_addrtype != AF_INET) {
+    GST_ELEMENT_ERROR (element, RESOURCE, NOT_FOUND, (NULL),
+        ("host \"%s\" is not an IP host", host));
+    return NULL;
+  }
+
+  addrs = hostinfo->h_addr_list;
+
+  /* There could be more than one IP address, but we just return the first */
+  ip = g_strdup (inet_ntoa (*(struct in_addr *) *addrs));
+
+  return ip;
+}
+
+/* Read a buffer from the given socket
+ * @returns:
+ *   a GstBuffer from which data should be read
+ *   or NULL, indicating a connection close or an error. Handle it with EOS.
+ */
+GstFlowReturn
+gst_dccp_read_buffer (GstElement * this, int socket, GstBuffer ** buf)
+{
+  fd_set testfds;
+  int maxfdp1;
+  int ret;
+  ssize_t bytes_read;
+  int readsize;
+
+  *buf = NULL;
+
+  /* do a blocking select on the socket */
+  FD_ZERO (&testfds);
+  FD_SET (socket, &testfds);
+  maxfdp1 = socket + 1;
+
+  /* no action (0) is also an error in our case */
+  if ((ret = select (maxfdp1, &testfds, NULL, NULL, 0)) <= 0) {
+    GST_ELEMENT_ERROR (this, RESOURCE, READ, (NULL),
+        ("select failed: %s", g_strerror (errno)));
+    return GST_FLOW_ERROR;
+  }
+
+  /* ask how much is available for reading on the socket */
+  if ((ret = ioctl (socket, FIONREAD, &readsize)) < 0) {
+    GST_ELEMENT_ERROR (this, RESOURCE, READ, (NULL),
+        ("read FIONREAD value failed: %s", g_strerror (errno)));
+    return GST_FLOW_ERROR;
+  }
+
+  if (readsize == 0) {
+    GST_DEBUG_OBJECT (this, "Got EOS on socket stream");
+    return GST_FLOW_UNEXPECTED;
+  }
+
+  *buf = gst_buffer_new_and_alloc (readsize);
+  bytes_read = read (socket, GST_BUFFER_DATA (*buf), readsize);
+
+  GST_LOG_OBJECT (this, "bytes read %d\n", bytes_read);
+  GST_LOG_OBJECT (this, "returning buffer of size %d", GST_BUFFER_SIZE (*buf));
+
+  return GST_FLOW_OK;
+}
+
+/* Create a new socket
+ * @return the socket file descriptor
+ */
+gint
+gst_dccp_create_new_socket (GstElement * element)
+{
+  int sock_fd;
+  if ((sock_fd = socket (AF_INET, SOCK_DCCP, IPPROTO_DCCP)) < 0) {
+    GST_ELEMENT_ERROR (element, RESOURCE, OPEN_READ, (NULL), GST_ERROR_SYSTEM);
+  }
+
+  return sock_fd;
+}
+
+/* Connect to a server
+ * @return true in case of successfull connection, false otherwise
+ */
+gboolean
+gst_dccp_connect_to_server (GstElement * element, struct sockaddr_in server_sin,
+    int sock_fd)
+{
+  GST_DEBUG_OBJECT (element, "connecting to server");
+
+  if (connect (sock_fd, (struct sockaddr *) &server_sin, sizeof (server_sin))) {
+    switch (errno) {
+      case ECONNREFUSED:
+        GST_ERROR_OBJECT (element, "Connection refused.");
+        return FALSE;
+        break;
+      default:
+        GST_ERROR_OBJECT (element, "Connection failed.");
+        return FALSE;
+        break;
+    }
+  }
+  return TRUE;
+}
+
+/* FIXME support only one client */
+/*
+ * Accept connection on the server socket.
+ * @return the socket of the client connected to the server.
+ */
+gint
+gst_dccp_server_wait_connections (GstElement * element, int server_sock_fd)
+{
+  /* new client */
+  int client_sock_fd;
+  struct sockaddr_in client_address;
+  unsigned int client_address_len;
+
+  /* For some stupid reason, client_address and client_address_len has to be
+   * zeroed */
+  memset (&client_address, 0, sizeof (client_address));
+  client_address_len = 0;
+
+  if ((client_sock_fd =
+          accept (server_sock_fd, (struct sockaddr *) &client_address,
+              &client_address_len)) == -1) {
+    return -1;
+  }
+  /* to support multiple connection, fork here a new thread passing the
+   * client_sock_fd returned by accept function.
+   */
+
+  GST_DEBUG_OBJECT (element, "added new client ip %s with fd %d",
+      inet_ntoa (client_address.sin_addr), client_sock_fd);
+
+  /* return the thread object, instead of the fd */
+  return client_sock_fd;
+}
+
+/*
+ * Bind a server address.
+ * @return true in success, false otherwise.
+ */
+gboolean
+gst_dccp_bind_server_socket (GstElement * element, int server_sock_fd,
+    struct sockaddr_in server_sin)
+{
+  int ret;
+
+  GST_DEBUG_OBJECT (element, "binding server socket to address");
+  ret = bind (server_sock_fd, (struct sockaddr *) &server_sin,
+      sizeof (server_sin));
+  if (ret) {
+    switch (errno) {
+      default:
+        GST_ELEMENT_ERROR (element, RESOURCE, OPEN_READ, (NULL),
+            ("bind on port %d failed: %s", server_sin.sin_port,
+                g_strerror (errno)));
+        return FALSE;
+        break;
+    }
+  }
+  return TRUE;
+}
+
+gboolean
+gst_dccp_listen_server_socket (GstElement * element, int server_sock_fd)
+{
+
+  GST_DEBUG_OBJECT (element, "listening on server socket %d with queue of %d",
+      server_sock_fd, DCCP_BACKLOG);
+  if (listen (server_sock_fd, DCCP_BACKLOG) == -1) {
+    GST_ELEMENT_ERROR (element, RESOURCE, OPEN_READ, (NULL),
+        ("Could not listen on server socket: %s", g_strerror (errno)));
+    return FALSE;
+  }
+  GST_DEBUG_OBJECT (element,
+      "listened on server socket %d, returning from connection setup",
+      server_sock_fd);
+
+  return TRUE;
+}
+
+/* FIXME */
+gboolean
+gst_dccp_socket_connected (GstElement * element, int server_sock_fd)
+{
+  return FALSE;
+}
+
+/* Write buffer to given socket incrementally.
+ * Returns number of bytes written.
+ */
+gint
+gst_dccp_socket_write (int socket, const void *buf, size_t size,
+    int packet_size)
+{
+  size_t bytes_written = 0;
+  ssize_t wrote;
+
+  while (bytes_written < size) {
+    do {
+      wrote = write (socket, (const char *) buf + bytes_written,
+          MIN (packet_size, size - bytes_written));
+    } while (wrote == -1 && errno == EAGAIN);
+
+    /* TODO print the send error */
+    bytes_written += wrote;
+  }
+
+  if (bytes_written < 0)
+    GST_WARNING ("error while writing");
+  else
+    GST_LOG ("wrote %" G_GSIZE_FORMAT " bytes succesfully", bytes_written);
+  return bytes_written;
+}
+
+GstFlowReturn
+gst_dccp_send_buffer (GstElement * this, GstBuffer * buffer, int client_sock_fd,
+    int packet_size)
+{
+  size_t wrote;
+  gint size = 0;
+  guint8 *data;
+
+  size = GST_BUFFER_SIZE (buffer);
+  data = GST_BUFFER_DATA (buffer);
+
+  GST_LOG_OBJECT (this, "writing %d bytes\n", size);
+
+  if (packet_size < 0) {
+    GST_LOG_OBJECT (this, "error getting MTU\n");
+    return GST_FLOW_ERROR;
+  }
+
+  wrote = gst_dccp_socket_write (client_sock_fd, data, size, packet_size);
+
+  if (wrote != size) {
+    GST_DEBUG_OBJECT (this, ("Error while sending data"));
+    return GST_FLOW_ERROR;
+  }
+  return GST_FLOW_OK;
+}
+
+/*
+ * Create socket address.
+ * @return sockaddr_in.
+ */
+struct sockaddr_in
+gst_dccp_create_sockaddr (GstElement * element, gchar * ip, int port)
+{
+  struct sockaddr_in sin;
+
+  memset (&sin, 0, sizeof (sin));
+  sin.sin_family = AF_INET;     /* network socket */
+  sin.sin_port = htons (port);  /* on port */
+  sin.sin_addr.s_addr = inet_addr (ip); /* on host ip */
+
+  return sin;
+}
+
+gboolean
+gst_dccp_make_address_reusable (GstElement * element, int sock_fd)
+{
+  int ret = 1;
+  /* make address reusable */
+  if (setsockopt (sock_fd, SOL_SOCKET, SO_REUSEADDR,
+          (void *) &ret, sizeof (ret)) < 0) {
+    GST_ELEMENT_ERROR (element, RESOURCE, SETTINGS, (NULL),
+        ("Could not setsockopt: %s", g_strerror (errno)));
+    return FALSE;
+  }
+  return TRUE;
+}
+
+/* DCCP socket specific stuffs */
+gboolean
+gst_dccp_set_ccid (GstElement * element, int sock_fd, uint8_t ccid)
+{
+  uint8_t ccids[4];             /* for getting the available CCIDs, should be large enough */
+  socklen_t len = sizeof (ccids);
+  int i, ret;
+  gboolean ccid_supported = FALSE;
+
+  /*
+   * Determine which CCIDs are available on the host
+   */
+  ret = getsockopt (sock_fd, SOL_DCCP, DCCP_SOCKOPT_AVAILABLE_CCIDS, &ccids,
+      &len);
+  if (ret < 0) {
+    GST_ERROR_OBJECT (element, "Can not determine available CCIDs");
+    return FALSE;
+  }
+
+  for (i = 0; i < sizeof (ccids); i++) {
+    if (ccid == ccids[i]) {
+      ccid_supported = TRUE;
+    }
+  }
+
+  if (!ccid_supported) {
+    GST_ERROR_OBJECT (element, "CCID specified is not supported");
+    return FALSE;
+  }
+
+  if (setsockopt (sock_fd, SOL_DCCP, DCCP_SOCKOPT_CCID, &ccid,
+          sizeof (ccid)) < 0) {
+    GST_ERROR_OBJECT (element, "Can not set CCID");
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+/*
+ * Get the current ccid of TX or RX half-connection. tx_or_rx parameter must be
+ * DCCP_SOCKOPT_TX_CCID or DCCP_SOCKOPT_RX_CCID.
+ * @return ccid or -1 on error or tx_or_rx not the correct option
+ */
+uint8_t
+gst_dccp_get_ccid (GstElement * element, int sock_fd, int tx_or_rx)
+{
+  uint8_t ccid;
+  socklen_t ccidlen;
+  int ret;
+
+  switch (tx_or_rx) {
+    case DCCP_SOCKOPT_TX_CCID:
+    case DCCP_SOCKOPT_RX_CCID:
+      break;
+    default:
+      return -1;
+  }
+
+  ccidlen = sizeof (ccid);
+  ret = getsockopt (sock_fd, SOL_DCCP, tx_or_rx, &ccid, &ccidlen);
+  if (ret < 0) {
+    GST_ERROR_OBJECT (element, "Can not determine available CCIDs");
+    return -1;
+  }
+  return ccid;
+}
+
+gint
+gst_dccp_get_max_packet_size (GstElement * element, int sock)
+{
+  int size;
+  socklen_t sizelen = sizeof (size);
+  if (getsockopt (sock, SOL_DCCP, DCCP_SOCKOPT_GET_CUR_MPS,
+          &size, &sizelen) < 0) {
+    GST_ELEMENT_ERROR (element, RESOURCE, SETTINGS, (NULL),
+        ("Could not get current MTU %d: %s", errno, g_strerror (errno)));
+    return -1;
+  }
+  GST_DEBUG_OBJECT (element, "MTU: %d", size);
+  return size;
+}
+
+/* Still not used and need to be FIXED */
+gboolean
+gst_dccp_set_sock_windowsize (GstElement * element, int sock, int winSize,
+    gboolean inSend)
+{
+#ifdef SO_SNDBUF
+  int rc;
+
+  if (!inSend) {
+    /* receive buffer -- set
+     * note: results are verified after connect() or listen(),
+     * since some OS's don't show the corrected value until then. */
+    rc = setsockopt (sock, SOL_DCCP, SO_RCVBUF,
+        (char *) &winSize, sizeof (winSize));
+    GST_DEBUG_OBJECT (element, "set rcv sockbuf: %d\n", winSize);
+  } else {
+    /* send buffer -- set
+     * note: results are verified after connect() or listen(),
+     * since some OS's don't show the corrected value until then. */
+    rc = setsockopt (sock, SOL_DCCP, SO_SNDBUF,
+        (char *) &winSize, sizeof (winSize));
+    GST_DEBUG_OBJECT (element, "set snd sockbuf: %d\n", winSize);
+  }
+
+  if (rc < 0) {
+    GST_ELEMENT_ERROR (element, RESOURCE, SETTINGS, (NULL),
+        ("Could not set window size %d: %s", errno, g_strerror (errno)));
+    return FALSE;
+  }
+#endif /* SO_SNDBUF */
+
+  return TRUE;
+}
diff --git a/gst/dccp/gstdccp.h b/gst/dccp/gstdccp.h
new file mode 100644
index 00000000..117b0df5
--- /dev/null
+++ b/gst/dccp/gstdccp.h
@@ -0,0 +1,96 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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.
+ */
+
+#ifndef __GST_DCCP_H__
+#define __GST_DCCP_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstadapter.h>
+#include <sys/socket.h>
+#include <netinet/in.h>                   /* sockaddr_in */
+
+/* DCCP socket general options */
+#define DCCP_BACKLOG	5
+#ifndef SOCK_DCCP
+	#define SOCK_DCCP		6
+#endif
+
+#ifndef IPPROTO_DCCP
+	#define IPPROTO_DCCP	33
+#endif
+
+#ifndef SOL_DCCP
+	#define SOL_DCCP		269
+#endif
+
+/* dccp socket specific options */
+#define DCCP_SOCKOPT_PACKET_SIZE        1 /* XXX deprecated, without effect */
+#define DCCP_SOCKOPT_SERVICE            2
+#define DCCP_SOCKOPT_CHANGE_L           3
+#define DCCP_SOCKOPT_CHANGE_R           4
+#define DCCP_SOCKOPT_GET_CUR_MPS        5
+#define DCCP_SOCKOPT_SERVER_TIMEWAIT    6
+#define DCCP_SOCKOPT_SEND_CSCOV         10
+#define DCCP_SOCKOPT_RECV_CSCOV         11
+#define DCCP_SOCKOPT_AVAILABLE_CCIDS    12
+#define DCCP_SOCKOPT_CCID               13
+#define DCCP_SOCKOPT_TX_CCID            14
+#define DCCP_SOCKOPT_RX_CCID            15
+#define DCCP_SOCKOPT_CCID_RX_INFO       128
+#define DCCP_SOCKOPT_CCID_TX_INFO       192
+
+/* Default parameters for the gst dccp element property */
+#define DCCP_DEFAULT_PORT		 5001
+#define DCCP_DEFAULT_SOCK_FD		 -1
+#define DCCP_DEFAULT_CLIENT_SOCK_FD	 -1
+#define DCCP_DEFAULT_CLOSED		 TRUE
+#define DCCP_DEFAULT_WAIT_CONNECTIONS	 FALSE
+#define DCCP_DEFAULT_HOST		 "127.0.0.1"
+#define DCCP_DEFAULT_CCID		 2
+
+#define DCCP_DELTA			 100
+
+gchar *gst_dccp_host_to_ip (GstElement * element, const gchar * host);
+
+GstFlowReturn gst_dccp_read_buffer (GstElement * this, int socket,
+				GstBuffer ** buf);
+
+gint gst_dccp_create_new_socket (GstElement * element);
+gboolean gst_dccp_connect_to_server (GstElement * element,
+				 struct sockaddr_in server_sin,
+				 int sock_fd);
+
+gint gst_dccp_server_wait_connections (GstElement * element, int server_sock_fd);
+
+gboolean gst_dccp_bind_server_socket (GstElement * element, int server_sock_fd,
+					  struct sockaddr_in server_sin);
+
+gboolean gst_dccp_listen_server_socket (GstElement * element, int server_sock_fd);
+gboolean gst_dccp_set_ccid (GstElement * element, int sock_fd, uint8_t ccid);
+
+gint gst_dccp_get_max_packet_size(GstElement * element, int sock);
+
+GstFlowReturn gst_dccp_send_buffer (GstElement * element, GstBuffer * buffer,
+					int client_sock_fd, int packet_size);
+
+gboolean gst_dccp_make_address_reusable (GstElement * element, int sock_fd);
+gboolean gst_dccp_set_sock_windowsize(GstElement * element, int sock, int winSize,
+															gboolean inSend);
+
+#endif /* __GST_DCCP_H__ */
diff --git a/gst/dccp/gstdccpclientsink.c b/gst/dccp/gstdccpclientsink.c
new file mode 100644
index 00000000..d8fca1fb
--- /dev/null
+++ b/gst/dccp/gstdccpclientsink.c
@@ -0,0 +1,322 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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.
+ */
+
+/**
+ * SECTION:element-dccpclientsink
+ * @see_also: dccpserversrc, dccpclientsrc, dccpserversink
+ *
+ * This element connect to a DCCP server and send data to it.
+ * <ulink url="http://www.linuxfoundation.org/en/Net:DCCP">DCCP</ulink> (Datagram
+ * Congestion Control Protocol) is a Transport Layer protocol like
+ * TCP and UDP.
+ *
+ * <refsect2>
+ * <title>Example pipeline</title>
+ * <para>
+ * |[
+ * gst-launch -v filesrc location=music.mp3 ! mp3parse ! dccpclientsink host=localhost port=9011 ccid=2
+ * ]| Client
+ * |[
+ * gst-launch -v dccpserversrc port=9011 ccid=2 ! decodebin ! alsasink
+ * ]| Server
+ *
+ * This example pipeline will send a MP3 stream to the server using DCCP.
+ * The server will decode the MP3 and play it.
+ * Run the server pipeline first than the client pipeline.
+ * </para>
+ * </refsect2>
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstdccpclientsink.h"
+#include "gstdccp.h"
+#include <string.h>             /* memset */
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <fcntl.h>
+
+/* signals */
+enum
+{
+  SIGNAL_CONNECTED,
+  LAST_SIGNAL
+};
+
+/* properties */
+enum
+{
+  PROP_0,
+  PROP_PORT,
+  PROP_HOST,
+  PROP_SOCK_FD,
+  PROP_CCID,
+  PROP_CLOSE_FD
+};
+
+static gboolean gst_dccp_client_sink_stop (GstBaseSink * bsink);
+static gboolean gst_dccp_client_sink_start (GstBaseSink * bsink);
+static GstFlowReturn gst_dccp_client_sink_render (GstBaseSink * bsink,
+    GstBuffer * buf);
+
+GST_DEBUG_CATEGORY_STATIC (dccpclientsink_debug);
+
+static const GstElementDetails gst_dccp_client_sink_details =
+GST_ELEMENT_DETAILS ("DCCP client sink",
+    "Sink/Network",
+    "Send data as a client over the network via DCCP",
+    "E-Phone Team at Federal University of Campina Grande <leandroal@gmail.com>");
+
+static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+GST_BOILERPLATE (GstDCCPClientSink, gst_dccp_client_sink, GstBaseSink,
+    GST_TYPE_BASE_SINK);
+
+static guint gst_dccp_client_sink_signals[LAST_SIGNAL] = { 0 };
+
+static GstFlowReturn
+gst_dccp_client_sink_render (GstBaseSink * bsink, GstBuffer * buf)
+{
+  GstDCCPClientSink *sink = GST_DCCP_CLIENT_SINK (bsink);
+
+  return gst_dccp_send_buffer (GST_ELEMENT (sink), buf, sink->sock_fd,
+      sink->pksize);
+}
+
+/*
+ * Set the value of a property for the client sink.
+ */
+static void
+gst_dccp_client_sink_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstDCCPClientSink *sink = GST_DCCP_CLIENT_SINK (object);
+
+  switch (prop_id) {
+    case PROP_PORT:
+      sink->port = g_value_get_int (value);
+      break;
+    case PROP_SOCK_FD:
+      sink->sock_fd = g_value_get_int (value);
+      break;
+    case PROP_HOST:
+      if (!g_value_get_string (value)) {
+        g_warning ("host property cannot be NULL");
+        break;
+      }
+      g_free (sink->host);
+      sink->host = g_strdup (g_value_get_string (value));
+      break;
+    case PROP_CLOSE_FD:
+      sink->closed = g_value_get_boolean (value);
+      break;
+    case PROP_CCID:
+      sink->ccid = g_value_get_int (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+/*
+ * Get a given property value for the client sink.
+ */
+static void
+gst_dccp_client_sink_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec)
+{
+  GstDCCPClientSink *sink = GST_DCCP_CLIENT_SINK (object);
+
+  switch (prop_id) {
+    case PROP_PORT:
+      g_value_set_int (value, sink->port);
+      break;
+    case PROP_SOCK_FD:
+      g_value_set_int (value, sink->sock_fd);
+      break;
+    case PROP_HOST:
+      g_value_set_string (value, sink->host);
+      break;
+    case PROP_CLOSE_FD:
+      g_value_set_boolean (value, sink->closed);
+      break;
+    case PROP_CCID:
+      g_value_set_int (value, sink->ccid);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static gboolean
+gst_dccp_client_sink_start (GstBaseSink * bsink)
+{
+  GstDCCPClientSink *sink = GST_DCCP_CLIENT_SINK (bsink);
+
+  if (sink->sock_fd == DCCP_DEFAULT_SOCK_FD) {
+    gchar *ip = NULL;
+
+    /* look up name if we need to */
+    if (!(ip = gst_dccp_host_to_ip (GST_ELEMENT (sink), sink->host))) {
+      GST_ERROR_OBJECT (sink, "cannot resolve hostname");
+      gst_dccp_client_sink_stop (GST_BASE_SINK (sink));
+      return FALSE;
+    }
+
+    /* name the server socket */
+    memset (&sink->server_sin, 0, sizeof (sink->server_sin));
+    sink->server_sin.sin_family = AF_INET;      /* network socket */
+    sink->server_sin.sin_port = htons (sink->port);     /* on port */
+    sink->server_sin.sin_addr.s_addr = inet_addr (ip);  /* on host ip */
+    g_free (ip);
+
+    /* create socket */
+    if ((sink->sock_fd = gst_dccp_create_new_socket (GST_ELEMENT (sink))) < 0) {
+      return FALSE;
+    }
+
+    if (!gst_dccp_set_ccid (GST_ELEMENT (sink), sink->sock_fd, sink->ccid)) {
+      gst_dccp_client_sink_stop (GST_BASE_SINK (sink));
+      return FALSE;
+    }
+
+    if (!gst_dccp_connect_to_server (GST_ELEMENT (sink), sink->server_sin,
+            sink->sock_fd)) {
+      gst_dccp_client_sink_stop (GST_BASE_SINK (sink));
+      return FALSE;
+    }
+
+    /* the socket is connected */
+    g_signal_emit (sink, gst_dccp_client_sink_signals[SIGNAL_CONNECTED], 0,
+        sink->sock_fd);
+  }
+
+  sink->pksize =
+      gst_dccp_get_max_packet_size (GST_ELEMENT (sink), sink->sock_fd);
+
+  return TRUE;
+}
+
+static void
+gst_dccp_client_sink_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 (&sinktemplate));
+
+  gst_element_class_set_details (element_class, &gst_dccp_client_sink_details);
+}
+
+static void
+gst_dccp_client_sink_init (GstDCCPClientSink * this,
+    GstDCCPClientSinkClass * g_class)
+{
+  this->port = DCCP_DEFAULT_PORT;
+  this->host = g_strdup (DCCP_DEFAULT_HOST);
+  this->sock_fd = DCCP_DEFAULT_SOCK_FD;
+  this->closed = DCCP_DEFAULT_CLOSED;
+  this->ccid = DCCP_DEFAULT_CCID;
+}
+
+static gboolean
+gst_dccp_client_sink_stop (GstBaseSink * bsink)
+{
+  GstDCCPClientSink *sink;
+
+  sink = GST_DCCP_CLIENT_SINK (bsink);
+
+  if (sink->sock_fd != -1 && sink->closed) {
+    GST_DEBUG_OBJECT (sink, "closing socket");
+    close (sink->sock_fd);
+    sink->sock_fd = -1;
+  }
+
+  return TRUE;
+}
+
+/*
+ * Define the gst class, callbacks, etc.
+ */
+static void
+gst_dccp_client_sink_class_init (GstDCCPClientSinkClass * klass)
+{
+  GObjectClass *gobject_class;
+  GstBaseSinkClass *gstbasesink_class;
+
+  gobject_class = (GObjectClass *) klass;
+  gstbasesink_class = (GstBaseSinkClass *) klass;
+
+  gobject_class->set_property = gst_dccp_client_sink_set_property;
+  gobject_class->get_property = gst_dccp_client_sink_get_property;
+
+  g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PORT,
+      g_param_spec_int ("port", "Port",
+          "The port to receive the packets from, 0=allocate", 0, G_MAXUINT16,
+          DCCP_DEFAULT_PORT, G_PARAM_READWRITE));
+
+/* FIXME property server_ip */
+  g_object_class_install_property (gobject_class, PROP_HOST,
+      g_param_spec_string ("host", "Host",
+          "The host IP address to send packets to", DCCP_DEFAULT_HOST,
+          G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_SOCK_FD,
+      g_param_spec_int ("sockfd", "Socket fd",
+          "The socket file descriptor", -1, G_MAXINT,
+          DCCP_DEFAULT_SOCK_FD, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CLOSE_FD,
+      g_param_spec_boolean ("close-socket", "Close",
+          "Close socket at end of stream",
+          DCCP_DEFAULT_CLOSED, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CCID,
+      g_param_spec_int ("ccid", "CCID",
+          "The Congestion Control IDentified to be used", 2, G_MAXINT,
+          DCCP_DEFAULT_CCID, G_PARAM_READWRITE));
+
+  /* signals */
+  /**
+   * GstDccpClientSink::connected:
+   * @sink: the gstdccpclientsink instance
+   * @fd: the connected socket fd
+   *
+   * Sign that the element has connected, return the fd of the socket.
+   */
+  gst_dccp_client_sink_signals[SIGNAL_CONNECTED] =
+      g_signal_new ("connected", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
+      G_STRUCT_OFFSET (GstDCCPClientSinkClass, connected), NULL, NULL,
+      gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
+
+  gstbasesink_class->start = gst_dccp_client_sink_start;
+  gstbasesink_class->stop = gst_dccp_client_sink_stop;
+  gstbasesink_class->render = gst_dccp_client_sink_render;
+
+  GST_DEBUG_CATEGORY_INIT (dccpclientsink_debug, "dccpclientsink", 0,
+      "DCCP Client Sink");
+}
diff --git a/gst/dccp/gstdccpclientsink.h b/gst/dccp/gstdccpclientsink.h
new file mode 100644
index 00000000..6af03b5f
--- /dev/null
+++ b/gst/dccp/gstdccpclientsink.h
@@ -0,0 +1,81 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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.
+ */
+
+#ifndef __GST_DCCP_CLIENT_SINK_H__
+#define __GST_DCCP_CLIENT_SINK_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstbasesink.h>
+#include <gst/base/gstadapter.h>
+
+G_BEGIN_DECLS
+
+#include <netdb.h>                        /* sockaddr_in */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>                   /* sockaddr_in */
+#include <unistd.h>
+
+#define GST_TYPE_DCCP_CLIENT_SINK \
+  (gst_dccp_client_sink_get_type())
+#define GST_DCCP_CLIENT_SINK(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DCCP_CLIENT_SINK,GstDCCPClientSink))
+#define GST_DCCP_CLIENT_SINK_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DCCP_CLIENT_SINK,GstDCCPClientSinkClass))
+#define GST_IS_DCCP_CLIENT_SINK(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DCCP_CLIENT_SINK))
+#define GST_IS_DCCP_CLIENT_SINK_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DCCP_CLIENT_SINK))
+
+typedef struct _GstDCCPClientSink GstDCCPClientSink;
+typedef struct _GstDCCPClientSinkClass GstDCCPClientSinkClass;
+
+
+struct _GstDCCPClientSink
+{
+  GstBaseSink element;
+
+  /* server information */
+  int port;
+  gchar *host;
+  struct sockaddr_in server_sin;
+
+  /* socket */
+  int sock_fd;
+  gboolean closed;
+
+  int pksize;
+
+  GstCaps *caps;
+  uint8_t ccid;
+};
+
+struct _GstDCCPClientSinkClass
+{
+  GstBaseSinkClass parent_class;
+
+  /* signals */
+  void (*connected) (GstElement *sink, gint fd);
+};
+
+GType gst_dccp_client_sink_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_DCCP_CLIENT_SRC_H__ */
diff --git a/gst/dccp/gstdccpclientsrc.c b/gst/dccp/gstdccpclientsrc.c
new file mode 100644
index 00000000..bd42bf66
--- /dev/null
+++ b/gst/dccp/gstdccpclientsrc.c
@@ -0,0 +1,398 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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.
+ */
+
+/**
+ * SECTION:element-dccpclientsrc
+ * @see_also: dccpclientsink, dccpserversink, dccpserversrc
+ *
+ * This element connect to a DCCP server and send data to it.
+ * <ulink url="http://www.linuxfoundation.org/en/Net:DCCP">DCCP</ulink> (Datagram
+ * Congestion Control Protocol) is a Transport Layer protocol like
+ * TCP and UDP.
+ *
+ * <refsect2>
+ * <title>Example pipeline</title>
+ * <para>
+ * |[
+ * gst-launch -v dccpclientsrc host=localhost port=9011 ccid=2 ! decodebin ! alsasink
+ * ]| Client
+ * |[
+ * gst-launch -v filesrc location=music.mp3 ! mp3parse ! dccpserversink port=9011 ccid=2
+ * ]| Server
+ *
+ * This example pipeline will send a MP3 stream to the client using DCCP.
+ * The client will decode the MP3 and play it. Run the server pipeline
+ * first than the client pipeline. If you want, you can run more than one dccpclientsrc
+ * to connect to the same server (see wait-connections property at dccpserversink).
+ * </para>
+ * </refsect2>
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstdccpclientsrc.h"
+#include "gstdccp.h"
+#include <string.h>             /* memset */
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <fcntl.h>
+
+#define DCCP_DEFAULT_CAPS       NULL
+
+/* signals */
+enum
+{
+  SIGNAL_CONNECTED,
+  LAST_SIGNAL
+};
+
+/* properties */
+enum
+{
+  PROP_0,
+  PROP_PORT,
+  PROP_HOST,
+  PROP_SOCK_FD,
+  PROP_CLOSED,
+  PROP_CCID,
+  PROP_CAPS
+};
+
+static gboolean gst_dccp_client_src_stop (GstBaseSrc * bsrc);
+
+GST_DEBUG_CATEGORY_STATIC (dccpclientsrc_debug);
+
+static const GstElementDetails gst_dccp_client_src_details =
+GST_ELEMENT_DETAILS ("DCCP client source",
+    "Source/Network",
+    "Receive data as a client over the network via DCCP",
+    "E-Phone Team at Federal University of Campina Grande <leandroal@gmail.com>");
+
+static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+GST_BOILERPLATE (GstDCCPClientSrc, gst_dccp_client_src, GstPushSrc,
+    GST_TYPE_PUSH_SRC);
+
+static guint gst_dccp_client_src_signals[LAST_SIGNAL] = { 0 };
+
+static GstFlowReturn
+gst_dccp_client_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
+{
+  GstDCCPClientSrc *src;
+  GstFlowReturn ret = GST_FLOW_OK;
+
+  src = GST_DCCP_CLIENT_SRC (psrc);
+
+  GST_LOG_OBJECT (src, "reading a buffer");
+  ret = gst_dccp_read_buffer (GST_ELEMENT (src), src->sock_fd, outbuf);
+
+  if (ret == GST_FLOW_OK) {
+    GST_LOG_OBJECT (src,
+        "Returning buffer from _get of size %d, ts %"
+        GST_TIME_FORMAT ", dur %" GST_TIME_FORMAT
+        ", offset %" G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT,
+        GST_BUFFER_SIZE (*outbuf),
+        GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (*outbuf)),
+        GST_TIME_ARGS (GST_BUFFER_DURATION (*outbuf)),
+        GST_BUFFER_OFFSET (*outbuf), GST_BUFFER_OFFSET_END (*outbuf));
+
+    if (!gst_caps_is_equal (src->caps, GST_CAPS_ANY)) {
+      gst_buffer_set_caps (*outbuf, src->caps);
+    }
+  }
+
+  return ret;
+}
+
+/*
+ * Set the value of a property for the client src.
+ */
+static void
+gst_dccp_client_src_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstDCCPClientSrc *src = GST_DCCP_CLIENT_SRC (object);
+
+  switch (prop_id) {
+    case PROP_PORT:
+      src->port = g_value_get_int (value);
+      break;
+    case PROP_HOST:
+      if (!g_value_get_string (value)) {
+        g_warning ("host property cannot be NULL");
+        break;
+      }
+      g_free (src->host);
+      src->host = g_strdup (g_value_get_string (value));
+      break;
+    case PROP_SOCK_FD:
+      src->sock_fd = g_value_get_int (value);
+      break;
+    case PROP_CLOSED:
+      src->closed = g_value_get_boolean (value);
+      break;
+    case PROP_CCID:
+      src->ccid = g_value_get_int (value);
+      break;
+    case PROP_CAPS:
+    {
+      const GstCaps *new_caps_val = gst_value_get_caps (value);
+      GstCaps *new_caps;
+      GstCaps *old_caps;
+
+      if (new_caps_val == NULL) {
+        new_caps = gst_caps_new_any ();
+      } else {
+        new_caps = gst_caps_copy (new_caps_val);
+      }
+
+      old_caps = src->caps;
+      src->caps = new_caps;
+      if (old_caps)
+        gst_caps_unref (old_caps);
+      gst_pad_set_caps (GST_BASE_SRC (src)->srcpad, new_caps);
+      break;
+    }
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+/*
+ * Get a given property value for the client src.
+ */
+static void
+gst_dccp_client_src_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec)
+{
+  GstDCCPClientSrc *src = GST_DCCP_CLIENT_SRC (object);
+
+  switch (prop_id) {
+    case PROP_PORT:
+      g_value_set_int (value, src->port);
+      break;
+    case PROP_HOST:
+      g_value_set_string (value, src->host);
+      break;
+    case PROP_SOCK_FD:
+      g_value_set_int (value, src->sock_fd);
+      break;
+    case PROP_CLOSED:
+      g_value_set_boolean (value, src->closed);
+      break;
+    case PROP_CCID:
+      g_value_set_int (value, src->ccid);
+      break;
+    case PROP_CAPS:
+      gst_value_set_caps (value, src->caps);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static gboolean
+gst_dccp_client_src_start (GstBaseSrc * bsrc)
+{
+  GstDCCPClientSrc *src = GST_DCCP_CLIENT_SRC (bsrc);
+
+  if (src->sock_fd == DCCP_DEFAULT_SOCK_FD) {
+    gchar *ip = NULL;
+
+    /* look up name if we need to */
+    if (!(ip = gst_dccp_host_to_ip (GST_ELEMENT (src), src->host))) {
+      GST_ERROR_OBJECT (src, "cannot resolve hostname");
+      gst_dccp_client_src_stop (GST_BASE_SRC (src));
+      return FALSE;
+    }
+
+    /* name the server socket */
+    memset (&src->server_sin, 0, sizeof (src->server_sin));
+    src->server_sin.sin_family = AF_INET;       /* network socket */
+    src->server_sin.sin_port = htons (src->port);       /* on port */
+    src->server_sin.sin_addr.s_addr = inet_addr (ip);   /* on host ip */
+    g_free (ip);
+
+    /* create socket */
+    if ((src->sock_fd = gst_dccp_create_new_socket (GST_ELEMENT (src))) < 0) {
+      return FALSE;
+    }
+
+    if (!gst_dccp_set_ccid (GST_ELEMENT (src), src->sock_fd, src->ccid)) {
+      gst_dccp_client_src_stop (GST_BASE_SRC (src));
+      return FALSE;
+    }
+
+    if (!gst_dccp_connect_to_server (GST_ELEMENT (src), src->server_sin,
+            src->sock_fd)) {
+      gst_dccp_client_src_stop (GST_BASE_SRC (src));
+      return FALSE;
+    }
+
+    /* the socket is connected */
+    g_signal_emit (src, gst_dccp_client_src_signals[SIGNAL_CONNECTED], 0,
+        src->sock_fd);
+  }
+
+  return TRUE;
+}
+
+static void
+gst_dccp_client_src_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 (&srctemplate));
+
+  gst_element_class_set_details (element_class, &gst_dccp_client_src_details);
+}
+
+static void
+gst_dccp_client_src_init (GstDCCPClientSrc * this,
+    GstDCCPClientSrcClass * g_class)
+{
+  this->port = DCCP_DEFAULT_PORT;
+  this->host = g_strdup (DCCP_DEFAULT_HOST);
+  this->sock_fd = DCCP_DEFAULT_SOCK_FD;
+  this->closed = DCCP_DEFAULT_CLOSED;
+  this->ccid = DCCP_DEFAULT_CCID;
+  this->caps = NULL;
+
+  gst_base_src_set_format (GST_BASE_SRC (this), GST_FORMAT_TIME);
+
+  /* Checking if the version of the gstreamer is bigger that 0.10.15 */
+#if ((GST_VERSION_MAJOR > 0) || \
+  (GST_VERSION_MAJOR == 0 && GST_VERSION_MINOR > 10) || \
+  (GST_VERSION_MAJOR == 0 && GST_VERSION_MINOR == 10 && GST_VERSION_MICRO >= 15))
+  gst_base_src_set_do_timestamp (GST_BASE_SRC (this), TRUE);
+#endif
+
+  /* FIXME is this correct? */
+  gst_base_src_set_live (GST_BASE_SRC (this), TRUE);
+}
+
+static void
+gst_dccp_client_src_finalize (GObject * gobject)
+{
+  GstDCCPClientSrc *this = GST_DCCP_CLIENT_SRC (gobject);
+
+  if (this->caps) {
+    gst_caps_unref (this->caps);
+    this->caps = NULL;
+  }
+
+  g_free (this->host);
+
+  G_OBJECT_CLASS (parent_class)->finalize (gobject);
+}
+
+static gboolean
+gst_dccp_client_src_stop (GstBaseSrc * bsrc)
+{
+  GstDCCPClientSrc *src;
+
+  src = GST_DCCP_CLIENT_SRC (bsrc);
+
+  if (src->sock_fd != -1 && src->closed) {
+    GST_DEBUG_OBJECT (src, "closing socket");
+    close (src->sock_fd);
+    src->sock_fd = -1;
+  }
+
+  return TRUE;
+}
+
+/*
+ * Define the gst class, callbacks, etc.
+ */
+static void
+gst_dccp_client_src_class_init (GstDCCPClientSrcClass * klass)
+{
+  GObjectClass *gobject_class;
+  GstBaseSrcClass *gstbasesrc_class;
+  GstPushSrcClass *gstpush_src_class;
+
+  gobject_class = (GObjectClass *) klass;
+  gstbasesrc_class = (GstBaseSrcClass *) klass;
+  gstpush_src_class = (GstPushSrcClass *) klass;
+
+  gobject_class->set_property = gst_dccp_client_src_set_property;
+  gobject_class->get_property = gst_dccp_client_src_get_property;
+
+  gobject_class->finalize = gst_dccp_client_src_finalize;
+
+  g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PORT,
+      g_param_spec_int ("port", "Port",
+          "The port to receive the packets from, 0=allocate", 0, G_MAXUINT16,
+          DCCP_DEFAULT_PORT, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_HOST,
+      g_param_spec_string ("host", "Host",
+          "The host IP address to receive packets from", DCCP_DEFAULT_HOST,
+          G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_SOCK_FD,
+      g_param_spec_int ("sockfd", "Socket fd",
+          "The socket file descriptor", -1, G_MAXINT, DCCP_DEFAULT_SOCK_FD,
+          G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CLOSED,
+      g_param_spec_boolean ("close-socket", "Close socket",
+          "Close socket at the end of stream", DCCP_DEFAULT_CLOSED,
+          G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CAPS,
+      g_param_spec_boxed ("caps", "Caps",
+          "The caps of the source pad", GST_TYPE_CAPS, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CCID,
+      g_param_spec_int ("ccid", "CCID",
+          "The Congestion Control IDentified to be used", 2, G_MAXINT,
+          DCCP_DEFAULT_CCID, G_PARAM_READWRITE));
+
+  /* signals */
+  /**
+   * GstDccpClientSrc::connected:
+   * @src: the gstdccpclientsrc instance
+   * @fd: the connected socket fd
+   *
+   * Reports that the element has connected, giving the fd of the socket
+   */
+  gst_dccp_client_src_signals[SIGNAL_CONNECTED] =
+      g_signal_new ("connected", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
+      G_STRUCT_OFFSET (GstDCCPClientSrcClass, connected), NULL, NULL,
+      gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
+
+  gstbasesrc_class->start = gst_dccp_client_src_start;
+  gstbasesrc_class->stop = gst_dccp_client_src_stop;
+
+  gstpush_src_class->create = gst_dccp_client_src_create;
+
+  GST_DEBUG_CATEGORY_INIT (dccpclientsrc_debug, "dccpclientsrc", 0,
+      "DCCP Client Source");
+}
diff --git a/gst/dccp/gstdccpclientsrc.h b/gst/dccp/gstdccpclientsrc.h
new file mode 100644
index 00000000..9be42b2d
--- /dev/null
+++ b/gst/dccp/gstdccpclientsrc.h
@@ -0,0 +1,77 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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.
+ */
+
+#ifndef __GST_DCCP_CLIENT_SRC_H__
+#define __GST_DCCP_CLIENT_SRC_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstpushsrc.h>
+#include <gst/base/gstbasesrc.h>
+
+G_BEGIN_DECLS
+
+#include <netdb.h>                        /* sockaddr_in */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>                   /* sockaddr_in */
+#include <unistd.h>
+
+
+#define GST_TYPE_DCCP_CLIENT_SRC \
+  (gst_dccp_client_src_get_type())
+#define GST_DCCP_CLIENT_SRC(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DCCP_CLIENT_SRC,GstDCCPClientSrc))
+#define GST_DCCP_CLIENT_SRC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DCCP_CLIENT_SRC,GstDCCPClientSrcClass))
+#define GST_IS_DCCP_CLIENT_SRC(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DCCP_CLIENT_SRC))
+#define GST_IS_DCCP_CLIENT_SRC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DCCP_CLIENT_SRC))
+
+typedef struct _GstDCCPClientSrc GstDCCPClientSrc;
+typedef struct _GstDCCPClientSrcClass GstDCCPClientSrcClass;
+
+struct _GstDCCPClientSrc {
+  GstPushSrc element;
+
+  /* server information */
+  int port;
+  gchar *host;
+  struct sockaddr_in server_sin;
+
+  /* socket */
+  int sock_fd;
+  gboolean closed;
+
+  GstCaps *caps;
+  uint8_t ccid;
+};
+
+struct _GstDCCPClientSrcClass {
+  GstPushSrcClass parent_class;
+
+  /* signals */
+  void (*connected) (GstElement *src, gint fd);
+};
+
+GType gst_dccp_client_src_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_DCCP_CLIENT_SRC_H__ */
diff --git a/gst/dccp/gstdccpplugin.c b/gst/dccp/gstdccpplugin.c
new file mode 100644
index 00000000..05c48cd5
--- /dev/null
+++ b/gst/dccp/gstdccpplugin.c
@@ -0,0 +1,60 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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 "gstdccpclientsrc.h"
+#include "gstdccpserversink.h"
+#include "gstdccpclientsink.h"
+#include "gstdccpserversrc.h"
+
+GST_DEBUG_CATEGORY (dccp_debug);
+
+static gboolean
+plugin_init (GstPlugin * plugin)
+{
+  if (!gst_element_register (plugin, "dccpclientsrc", GST_RANK_NONE,
+          GST_TYPE_DCCP_CLIENT_SRC))
+    return FALSE;
+
+  if (!gst_element_register (plugin, "dccpserversink", GST_RANK_NONE,
+          GST_TYPE_DCCP_SERVER_SINK))
+    return FALSE;
+
+  if (!gst_element_register (plugin, "dccpclientsink", GST_RANK_NONE,
+          GST_TYPE_DCCP_CLIENT_SINK))
+    return FALSE;
+
+  if (!gst_element_register (plugin, "dccpserversrc", GST_RANK_NONE,
+          GST_TYPE_DCCP_SERVER_SRC))
+    return FALSE;
+
+  GST_DEBUG_CATEGORY_INIT (dccp_debug, "dccp", 0, "DCCP calls");
+
+  return TRUE;
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+    GST_VERSION_MINOR,
+    "dccp",
+    "transfer data over the network via DCCP.",
+    plugin_init, VERSION, GST_LICENSE, "DCCP",
+    "http://garage.maemo.org/projects/ephone")
diff --git a/gst/dccp/gstdccpserversink.c b/gst/dccp/gstdccpserversink.c
new file mode 100644
index 00000000..72ffa16c
--- /dev/null
+++ b/gst/dccp/gstdccpserversink.c
@@ -0,0 +1,435 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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.
+ */
+
+/**
+ * SECTION:element-dccpserversink
+ * @see_also: dccpclientsink, dccpclientsrc, dccpserversrc
+ *
+ * This element wait for connections from clients and send data to them.
+ * <ulink url="http://www.linuxfoundation.org/en/Net:DCCP">DCCP</ulink> (Datagram
+ * Congestion Control Protocol) is a Transport Layer protocol like
+ * TCP and UDP.
+ *
+ * <refsect2>
+ * <title>Example pipeline</title>
+ * <para>
+ * |[
+ * gst-launch -v dccpclientsrc host=localhost port=9011 ccid=2 ! decodebin ! alsasink
+ * ]| Client
+ * |[
+ * gst-launch -v filesrc location=music.mp3 ! mp3parse ! dccpserversink port=9011 ccid=2
+ * ]| Server
+ *
+ * This example pipeline will send a MP3 stream to the client using DCCP.
+ * The client will decode the MP3 and play it. Run the server pipeline
+ * first than the client pipeline. If you want, you can run more than one dccpclientsrc
+ * to connect to the same server (see wait-connections property at dccpserversink).
+ * </para>
+ * </refsect2>
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstdccpserversink.h"
+#include "gstdccp.h"
+#include <string.h>             /* memset */
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <fcntl.h>
+
+/* signals */
+enum
+{
+  SIGNAL_CONNECTED,
+  LAST_SIGNAL
+};
+
+/* properties */
+enum
+{
+  PROP_0,
+  PROP_PORT,
+  PROP_CLIENT_SOCK_FD,
+  PROP_CCID,
+  PROP_CLOSED,
+  PROP_WAIT_CONNECTIONS
+};
+
+pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+static gboolean gst_dccp_server_sink_stop (GstBaseSink * bsink);
+
+GST_DEBUG_CATEGORY_STATIC (dccpserversink_debug);
+
+static const GstElementDetails gst_dccp_server_sink_details =
+GST_ELEMENT_DETAILS ("DCCP server sink",
+    "Sink/Network",
+    "Send data as a server over the network via DCCP",
+    "E-Phone Team at Federal University of Campina Grande <leandroal@gmail.com>");
+
+
+static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+GST_BOILERPLATE (GstDCCPServerSink, gst_dccp_server_sink, GstBaseSink,
+    GST_TYPE_BASE_SINK);
+
+static guint gst_dccp_server_sink_signals[LAST_SIGNAL] = { 0 };
+
+static Client *
+gst_dccp_server_create_client (GstElement * element, int socket)
+{
+  Client *client = (Client *) g_malloc (sizeof (Client));
+  client->socket = socket;
+  client->pksize = gst_dccp_get_max_packet_size (element, client->socket);
+  client->flow_status = GST_FLOW_OK;
+
+  /* the socket is connected */
+  g_signal_emit (element, gst_dccp_server_sink_signals[SIGNAL_CONNECTED], 0,
+      socket);
+
+  return client;
+}
+
+static void *
+gst_dccp_server_accept_new_clients (void *arg)
+{
+  GstDCCPServerSink *sink = (GstDCCPServerSink *) arg;
+  int newsockfd;
+  Client *client;
+
+  while (1) {
+    newsockfd =
+        gst_dccp_server_wait_connections (GST_ELEMENT (sink), sink->sock_fd);
+
+    client = gst_dccp_server_create_client (GST_ELEMENT (sink), newsockfd);
+
+    pthread_mutex_lock (&lock);
+    sink->clients = g_list_append (sink->clients, client);
+    pthread_mutex_unlock (&lock);
+  }
+}
+
+static void *
+gst_dccp_server_send_buffer (void *arg)
+{
+  Client *client = (Client *) arg;
+  GstDCCPServerSink *sink = client->server;
+  GstBuffer *buf = client->buf;
+  int client_sock_fd = client->socket;
+  int pksize = client->pksize;
+
+  if (gst_dccp_send_buffer (GST_ELEMENT (sink), buf, client_sock_fd,
+          pksize) == GST_FLOW_ERROR) {
+    client->flow_status = GST_FLOW_ERROR;
+  }
+  return NULL;
+}
+
+/* Remove clients with problems to send */
+static void *
+gst_dccp_server_delete_dead_clients (void *arg)
+{
+  GstDCCPServerSink *sink = (GstDCCPServerSink *) arg;
+  int i;
+  GList *tmp = NULL;
+
+  pthread_mutex_lock (&lock);
+  for (i = 0; i < g_list_length (sink->clients); i++) {
+    Client *client = (Client *) g_list_nth_data (sink->clients, i);
+    if (client->flow_status == GST_FLOW_OK) {
+      tmp = g_list_append (tmp, client);
+    } else {
+      close (client->socket);
+      g_free (client);
+    }
+  }
+  g_list_free (sink->clients);
+  sink->clients = tmp;
+  pthread_mutex_unlock (&lock);
+  return 0;
+}
+
+static void
+gst_dccp_server_sink_init (GstDCCPServerSink * this,
+    GstDCCPServerSinkClass * g_class)
+{
+  this->port = DCCP_DEFAULT_PORT;
+  this->sock_fd = DCCP_DEFAULT_SOCK_FD;
+  this->client_sock_fd = DCCP_DEFAULT_CLIENT_SOCK_FD;
+  this->closed = DCCP_DEFAULT_CLOSED;
+  this->ccid = DCCP_DEFAULT_CCID;
+  this->wait_connections = DCCP_DEFAULT_WAIT_CONNECTIONS;
+  this->clients = NULL;
+}
+
+static gboolean
+gst_dccp_server_sink_start (GstBaseSink * bsink)
+{
+  GstDCCPServerSink *sink = GST_DCCP_SERVER_SINK (bsink);
+  int ret = 1;
+  Client *client;
+
+  /* create socket */
+  if ((sink->sock_fd = gst_dccp_create_new_socket (GST_ELEMENT (sink))) < 0) {
+    return FALSE;
+  }
+
+  /* make address reusable */
+  if (setsockopt (sink->sock_fd, SOL_SOCKET, SO_REUSEADDR,
+          (void *) &ret, sizeof (ret)) < 0) {
+    GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
+        ("Could not setsockopt: %s", g_strerror (errno)));
+    return FALSE;
+  }
+
+  /* name the server socket */
+  memset (&sink->server_sin, 0, sizeof (sink->server_sin));
+  sink->server_sin.sin_family = AF_INET;        /* network socket */
+  sink->server_sin.sin_port = htons (sink->port);       /* on port */
+  sink->server_sin.sin_addr.s_addr = htonl (INADDR_ANY);        /* for hosts */
+
+  if (!gst_dccp_bind_server_socket (GST_ELEMENT (sink), sink->sock_fd,
+          sink->server_sin)) {
+    return FALSE;
+  }
+
+  if (!gst_dccp_set_ccid (GST_ELEMENT (sink), sink->sock_fd, sink->ccid)) {
+    return FALSE;
+  }
+
+  if (!gst_dccp_listen_server_socket (GST_ELEMENT (sink), sink->sock_fd)) {
+    return FALSE;
+  }
+
+
+  if (sink->client_sock_fd == DCCP_DEFAULT_CLIENT_SOCK_FD) {
+    sink->client_sock_fd =
+        gst_dccp_server_wait_connections (GST_ELEMENT (sink), sink->sock_fd);
+  }
+
+  if (sink->client_sock_fd == -1) {
+    return FALSE;
+  }
+
+  client =
+      gst_dccp_server_create_client (GST_ELEMENT (sink), sink->client_sock_fd);
+  sink->clients = g_list_append (sink->clients, client);
+
+  pthread_mutex_init (&lock, NULL);
+
+  if (sink->wait_connections == TRUE) {
+    pthread_create (&accept_thread_id, NULL, gst_dccp_server_accept_new_clients,
+        sink);
+    pthread_detach (accept_thread_id);
+  }
+
+  return TRUE;
+}
+
+static GstFlowReturn
+gst_dccp_server_sink_render (GstBaseSink * bsink, GstBuffer * buf)
+{
+  GstDCCPServerSink *sink = GST_DCCP_SERVER_SINK (bsink);
+
+  pthread_t thread_id;
+  int i;
+
+  pthread_mutex_lock (&lock);
+
+  for (i = 0; i < g_list_length (sink->clients); i++) {
+    Client *client = (Client *) g_list_nth_data (sink->clients, i);
+    client->buf = buf;
+    client->server = sink;
+
+    if (client->flow_status == GST_FLOW_OK) {
+      pthread_create (&thread_id, NULL, gst_dccp_server_send_buffer,
+          (void *) client);
+      pthread_detach (thread_id);
+    } else {
+      pthread_create (&thread_id, NULL, gst_dccp_server_delete_dead_clients,
+          (void *) sink);
+      pthread_detach (thread_id);
+    }
+  }
+
+  pthread_mutex_unlock (&lock);
+  return GST_FLOW_OK;
+}
+
+static gboolean
+gst_dccp_server_sink_stop (GstBaseSink * bsink)
+{
+  GstDCCPServerSink *sink;
+  int i;
+  sink = GST_DCCP_SERVER_SINK (bsink);
+
+  if (sink->wait_connections == TRUE) {
+    pthread_cancel (accept_thread_id);
+  }
+
+  if (sink->sock_fd != -1 && sink->closed == TRUE) {
+    GST_DEBUG_OBJECT (sink, "closing socket");
+    close (sink->sock_fd);
+    sink->sock_fd = -1;
+  }
+
+  pthread_mutex_lock (&lock);
+  for (i = 0; i < g_list_length (sink->clients); i++) {
+    Client *client = (Client *) g_list_nth_data (sink->clients, i);
+    close (client->socket);
+    g_free (client);
+  }
+  pthread_mutex_unlock (&lock);
+
+  return TRUE;
+}
+
+static void
+gst_dccp_server_sink_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 (&sinktemplate));
+
+  gst_element_class_set_details (element_class, &gst_dccp_server_sink_details);
+}
+
+/*
+ * Set the value of a property for the server sink.
+ */
+static void
+gst_dccp_server_sink_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstDCCPServerSink *sink = GST_DCCP_SERVER_SINK (object);
+
+  switch (prop_id) {
+    case PROP_PORT:
+      sink->port = g_value_get_int (value);
+      break;
+    case PROP_CLIENT_SOCK_FD:
+      sink->client_sock_fd = g_value_get_int (value);
+      break;
+    case PROP_CLOSED:
+      sink->closed = g_value_get_boolean (value);
+      break;
+    case PROP_WAIT_CONNECTIONS:
+      sink->wait_connections = g_value_get_boolean (value);
+      break;
+    case PROP_CCID:
+      sink->ccid = g_value_get_int (value);
+      break;
+    default:
+      break;
+  }
+}
+
+static void
+gst_dccp_server_sink_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec)
+{
+  GstDCCPServerSink *sink = GST_DCCP_SERVER_SINK (object);
+
+  switch (prop_id) {
+    case PROP_PORT:
+      g_value_set_int (value, sink->port);
+      break;
+    case PROP_CLIENT_SOCK_FD:
+      g_value_set_int (value, sink->client_sock_fd);
+      break;
+    case PROP_CLOSED:
+      g_value_set_boolean (value, sink->closed);
+      break;
+    case PROP_WAIT_CONNECTIONS:
+      g_value_set_boolean (value, sink->wait_connections);
+      break;
+    case PROP_CCID:
+      g_value_set_int (value, sink->ccid);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+
+static void
+gst_dccp_server_sink_class_init (GstDCCPServerSinkClass * klass)
+{
+  GObjectClass *gobject_class;
+  GstBaseSinkClass *gstbasesink_class;
+
+  gobject_class = (GObjectClass *) klass;
+  gstbasesink_class = (GstBaseSinkClass *) klass;
+
+  gobject_class->set_property = gst_dccp_server_sink_set_property;
+  gobject_class->get_property = gst_dccp_server_sink_get_property;
+
+  g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PORT,
+      g_param_spec_int ("port", "Port",
+          "The port to receive the packets from, 0=allocate", 0, G_MAXUINT16,
+          DCCP_DEFAULT_PORT, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CLIENT_SOCK_FD,
+      g_param_spec_int ("sockfd", "Socket fd",
+          "The client socket file descriptor", -1, G_MAXINT,
+          DCCP_DEFAULT_CLIENT_SOCK_FD, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CLOSED,
+      g_param_spec_boolean ("close-socket", "Close",
+          "Close socket at end of stream",
+          DCCP_DEFAULT_CLOSED, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CCID,
+      g_param_spec_int ("ccid", "CCID",
+          "The Congestion Control IDentified to be used", 2, G_MAXINT,
+          DCCP_DEFAULT_CCID, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_WAIT_CONNECTIONS,
+      g_param_spec_boolean ("wait-connections", "Wait connections",
+          "Wait for many client connections",
+          DCCP_DEFAULT_WAIT_CONNECTIONS, G_PARAM_READWRITE));
+
+
+  /* signals */
+  /**
+   * GstDccpServerSink::connected:
+   * @src: the gstdccpserversink instance
+   * @fd: the connected socket fd
+   *
+   * Reports that the element has connected, giving the fd of the socket
+   */
+  gst_dccp_server_sink_signals[SIGNAL_CONNECTED] =
+      g_signal_new ("connected", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
+      G_STRUCT_OFFSET (GstDCCPServerSinkClass, connected), NULL, NULL,
+      gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
+
+  gstbasesink_class->start = gst_dccp_server_sink_start;
+  gstbasesink_class->stop = gst_dccp_server_sink_stop;
+  gstbasesink_class->render = gst_dccp_server_sink_render;
+
+  GST_DEBUG_CATEGORY_INIT (dccpserversink_debug, "dccpserversink", 0,
+      "DCCP Server Sink");
+}
diff --git a/gst/dccp/gstdccpserversink.h b/gst/dccp/gstdccpserversink.h
new file mode 100644
index 00000000..5fead474
--- /dev/null
+++ b/gst/dccp/gstdccpserversink.h
@@ -0,0 +1,96 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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.
+ */
+
+#ifndef __GST_DCCP_SERVER_SINK_H__
+#define __GST_DCCP_SERVER_SINK_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstbasesink.h>
+#include <gst/base/gstadapter.h>
+
+G_BEGIN_DECLS
+
+#include <netdb.h>                        /* sockaddr_in */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>                   /* sockaddr_in */
+#include <unistd.h>
+#include <pthread.h>
+
+#define GST_TYPE_DCCP_SERVER_SINK \
+  (gst_dccp_server_sink_get_type())
+#define GST_DCCP_SERVER_SINK(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DCCP_SERVER_SINK,GstDCCPServerSink))
+#define GST_DCCP_SERVER_SINK_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DCCP_SERVER_SINK,GstDCCPServerSinkClass))
+#define GST_IS_DCCP_SERVER_SINK(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DCCP_SERVER_SINK))
+#define GST_IS_DCCP_SERVER_SINK_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DCCP_SERVER_SINK))
+
+typedef struct _GstDCCPServerSink GstDCCPServerSink;
+typedef struct _GstDCCPServerSinkClass GstDCCPServerSinkClass;
+
+typedef struct _Client Client;
+
+struct _Client
+{
+  GstDCCPServerSink *server;
+  GstBuffer * buf;
+  int socket;
+  int pksize;
+  GstFlowReturn flow_status;
+};
+
+pthread_t accept_thread_id;
+
+struct _GstDCCPServerSink
+{
+  GstBaseSink element;
+
+  /* server information */
+  int port;
+  struct sockaddr_in server_sin;
+
+  /* socket */
+  int sock_fd;
+
+  /* multiple clients */
+  GList *clients;
+
+  /* properties */
+  int client_sock_fd;
+  uint8_t ccid;
+  gboolean wait_connections;
+  gboolean closed;
+};
+
+struct _GstDCCPServerSinkClass
+{
+  GstBaseSinkClass parent_class;
+
+  /* signals */
+  void (*connected) (GstElement *sink, gint fd);
+};
+
+GType gst_dccp_server_sink_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_DCCP_SERVER_SINK_H__ */
diff --git a/gst/dccp/gstdccpserversrc.c b/gst/dccp/gstdccpserversrc.c
new file mode 100644
index 00000000..d3d46b0d
--- /dev/null
+++ b/gst/dccp/gstdccpserversrc.c
@@ -0,0 +1,403 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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.
+ */
+
+/**
+ * SECTION:element-dccpserversrc
+ * @see_also: dccpclientsink, dccpclientsrc, dccpserversink
+ *
+ * This element wait for connection from a client and receive data.
+ * <ulink url="http://www.linuxfoundation.org/en/Net:DCCP">DCCP</ulink> (Datagram
+ * Congestion Control Protocol) is a Transport Layer protocol like
+ * TCP and UDP.
+ *
+ * <refsect2>
+ * <title>Example pipeline</title>
+ * <para>
+ * |[
+ * gst-launch -v filesrc location=music.mp3 ! mp3parse ! dccpclientsink host=localhost port=9011 ccid=2
+ * ]| Client
+ * |[
+ * gst-launch -v dccpserversrc port=9011 ccid=2 ! decodebin ! alsasink
+ * ]| Server
+ *
+ * This example pipeline will send a MP3 stream to the server using DCCP.
+ * The server will decode the MP3 and play it.
+ * Run the server pipeline first than the client pipeline.
+ * </para>
+ * </refsect2>
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstdccpserversrc.h"
+#include "gstdccp.h"
+#include <string.h>             /* memset */
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <fcntl.h>
+
+#define DCCP_DEFAULT_CAPS        NULL
+#define DCCP_DEFAULT_LISTEN_HOST NULL   /* listen on all interfaces */
+
+/* signals */
+enum
+{
+  SIGNAL_CONNECTED,
+  LAST_SIGNAL
+};
+
+/* properties */
+enum
+{
+  PROP_0,
+  PROP_PORT,
+  PROP_HOST,
+  PROP_CLIENT_SOCK_FD,
+  PROP_CLOSED,
+  PROP_CCID,
+  PROP_CAPS
+};
+
+static gboolean gst_dccp_server_src_stop (GstBaseSrc * bsrc);
+
+GST_DEBUG_CATEGORY_STATIC (dccpserversrc_debug);
+
+static const GstElementDetails gst_dccp_server_src_details =
+GST_ELEMENT_DETAILS ("DCCP server source",
+    "Source/Network",
+    "Receive data as a server over the network via DCCP",
+    "E-Phone Team at Federal University of Campina Grande <leandroal@gmail.com>");
+
+static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+GST_BOILERPLATE (GstDCCPServerSrc, gst_dccp_server_src, GstPushSrc,
+    GST_TYPE_PUSH_SRC);
+
+static guint gst_dccp_server_src_signals[LAST_SIGNAL] = { 0 };
+
+static GstFlowReturn
+gst_dccp_server_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
+{
+  GstDCCPServerSrc *src;
+  GstFlowReturn ret = GST_FLOW_OK;
+
+  src = GST_DCCP_SERVER_SRC (psrc);
+
+  GST_LOG_OBJECT (src, "reading a buffer");
+
+  ret = gst_dccp_read_buffer (GST_ELEMENT (src), src->client_sock_fd, outbuf);
+
+  if (ret == GST_FLOW_OK) {
+    GST_LOG_OBJECT (src,
+        "Returning buffer from _get of size %d, ts %"
+        GST_TIME_FORMAT ", dur %" GST_TIME_FORMAT
+        ", offset %" G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT,
+        GST_BUFFER_SIZE (*outbuf),
+        GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (*outbuf)),
+        GST_TIME_ARGS (GST_BUFFER_DURATION (*outbuf)),
+        GST_BUFFER_OFFSET (*outbuf), GST_BUFFER_OFFSET_END (*outbuf));
+
+    if (!gst_caps_is_equal (src->caps, GST_CAPS_ANY)) {
+      gst_buffer_set_caps (*outbuf, src->caps);
+    }
+  }
+
+  return ret;
+}
+
+/*
+ * Set the value of a property for the server src.
+ */
+static void
+gst_dccp_server_src_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstDCCPServerSrc *src = GST_DCCP_SERVER_SRC (object);
+
+  switch (prop_id) {
+    case PROP_HOST:
+      if (!g_value_get_string (value)) {
+        g_warning ("host property cannot be NULL");
+        break;
+      }
+      g_free (src->host);
+      src->host = g_strdup (g_value_get_string (value));
+      break;
+    case PROP_PORT:
+      src->port = g_value_get_int (value);
+      break;
+    case PROP_CLIENT_SOCK_FD:
+      src->client_sock_fd = g_value_get_int (value);
+      break;
+    case PROP_CLOSED:
+      src->closed = g_value_get_boolean (value);
+      break;
+    case PROP_CCID:
+      src->ccid = g_value_get_int (value);
+      break;
+    case PROP_CAPS:
+    {
+      const GstCaps *new_caps_val = gst_value_get_caps (value);
+      GstCaps *new_caps;
+      GstCaps *old_caps;
+
+      if (new_caps_val == NULL) {
+        new_caps = gst_caps_new_any ();
+      } else {
+        new_caps = gst_caps_copy (new_caps_val);
+      }
+
+      old_caps = src->caps;
+      src->caps = new_caps;
+      if (old_caps) {
+        gst_caps_unref (old_caps);
+      }
+      gst_pad_set_caps (GST_BASE_SRC (src)->srcpad, new_caps);
+      break;
+    }
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+/*
+ * Get a given property value for the server src.
+ */
+static void
+gst_dccp_server_src_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec)
+{
+  GstDCCPServerSrc *src = GST_DCCP_SERVER_SRC (object);
+
+  switch (prop_id) {
+    case PROP_HOST:
+      g_value_set_string (value, src->host);
+      break;
+    case PROP_PORT:
+      g_value_set_int (value, src->port);
+      break;
+    case PROP_CLIENT_SOCK_FD:
+      g_value_set_int (value, src->client_sock_fd);
+      break;
+    case PROP_CLOSED:
+      g_value_set_boolean (value, src->closed);
+      break;
+    case PROP_CAPS:
+      gst_value_set_caps (value, src->caps);
+      break;
+    case PROP_CCID:
+      g_value_set_int (value, src->ccid);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+
+static gboolean
+gst_dccp_server_src_start (GstBaseSrc * bsrc)
+{
+  GstDCCPServerSrc *src = GST_DCCP_SERVER_SRC (bsrc);
+
+  if (src->client_sock_fd == DCCP_DEFAULT_CLIENT_SOCK_FD) {
+    /* create socket */
+    if ((src->sock_fd = gst_dccp_create_new_socket (GST_ELEMENT (src))) < 0) {
+      return FALSE;
+    }
+
+    gst_dccp_make_address_reusable (GST_ELEMENT (src), src->sock_fd);
+
+    /* name the server socket */
+    memset (&src->server_sin, 0, sizeof (src->server_sin));
+    src->server_sin.sin_family = AF_INET;       /* network socket */
+    src->server_sin.sin_port = htons (src->port);       /* on port */
+    src->server_sin.sin_addr.s_addr = htonl (INADDR_ANY);       /* for hosts */
+
+
+    if (!gst_dccp_bind_server_socket (GST_ELEMENT (src), src->sock_fd,
+            src->server_sin)) {
+      return FALSE;
+    }
+
+    if (!gst_dccp_set_ccid (GST_ELEMENT (src), src->sock_fd, src->ccid)) {
+      return FALSE;
+    }
+
+    if (!gst_dccp_listen_server_socket (GST_ELEMENT (src), src->sock_fd)) {
+      return FALSE;
+    }
+
+    src->client_sock_fd = gst_dccp_server_wait_connections (GST_ELEMENT (src),
+        src->sock_fd);
+    if (src->client_sock_fd == -1) {
+      return FALSE;
+    }
+
+    /* the socket is connected */
+    g_signal_emit (src, gst_dccp_server_src_signals[SIGNAL_CONNECTED], 0,
+        src->client_sock_fd);
+  }
+
+  return TRUE;
+}
+
+
+static void
+gst_dccp_server_src_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 (&srctemplate));
+
+  gst_element_class_set_details (element_class, &gst_dccp_server_src_details);
+}
+
+
+static void
+gst_dccp_server_src_init (GstDCCPServerSrc * this,
+    GstDCCPServerSrcClass * g_class)
+{
+  this->port = DCCP_DEFAULT_PORT;
+  this->host = g_strdup (DCCP_DEFAULT_HOST);
+  this->sock_fd = DCCP_DEFAULT_SOCK_FD;
+  this->client_sock_fd = DCCP_DEFAULT_CLIENT_SOCK_FD;
+  this->closed = DCCP_DEFAULT_CLOSED;
+  this->ccid = DCCP_DEFAULT_CCID;
+  this->caps = DCCP_DEFAULT_CAPS;
+
+  gst_base_src_set_format (GST_BASE_SRC (this), GST_FORMAT_TIME);
+
+  /* Checking if the version of the gstreamer is bigger that 0.10.15 */
+#if ((GST_VERSION_MAJOR > 0) || \
+  (GST_VERSION_MAJOR == 0 && GST_VERSION_MINOR > 10) || \
+  (GST_VERSION_MAJOR == 0 && GST_VERSION_MINOR == 10 && GST_VERSION_MICRO >= 15))
+  gst_base_src_set_do_timestamp (GST_BASE_SRC (this), TRUE);
+#endif
+
+  /* FIXME is this correct? */
+  gst_base_src_set_live (GST_BASE_SRC (this), TRUE);
+}
+
+
+static void
+gst_dccp_server_src_finalize (GObject * gobject)
+{
+  GstDCCPServerSrc *this = GST_DCCP_SERVER_SRC (gobject);
+
+  if (this->caps) {
+    gst_caps_unref (this->caps);
+    this->caps = NULL;
+  }
+
+  g_free (this->host);
+
+  G_OBJECT_CLASS (parent_class)->finalize (gobject);
+}
+
+
+static gboolean
+gst_dccp_server_src_stop (GstBaseSrc * bsrc)
+{
+  GstDCCPServerSrc *src;
+
+  src = GST_DCCP_SERVER_SRC (bsrc);
+
+  if (src->sock_fd != -1 && src->closed == TRUE) {
+    GST_DEBUG_OBJECT (src, "closing socket");
+    close (src->sock_fd);
+    src->sock_fd = -1;
+  }
+
+  return TRUE;
+}
+
+static void
+gst_dccp_server_src_class_init (GstDCCPServerSrcClass * klass)
+{
+  GObjectClass *gobject_class;
+  GstBaseSrcClass *gstbasesrc_class;
+  GstPushSrcClass *gstpush_src_class;
+
+  gobject_class = (GObjectClass *) klass;
+  gstbasesrc_class = (GstBaseSrcClass *) klass;
+  gstpush_src_class = (GstPushSrcClass *) klass;
+
+  gobject_class->set_property = gst_dccp_server_src_set_property;
+  gobject_class->get_property = gst_dccp_server_src_get_property;
+
+  gobject_class->finalize = gst_dccp_server_src_finalize;
+
+  g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PORT,
+      g_param_spec_int ("port", "Port",
+          "The port to receive the packets from, 0=allocate", 0, G_MAXUINT16,
+          DCCP_DEFAULT_PORT, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_HOST,
+      g_param_spec_string ("host", "Host", "The hostname to listen as",
+          DCCP_DEFAULT_LISTEN_HOST, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CLIENT_SOCK_FD,
+      g_param_spec_int ("sockfd", "Socket fd",
+          "The client socket file descriptor", -1, G_MAXINT,
+          DCCP_DEFAULT_CLIENT_SOCK_FD, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CLOSED,
+      g_param_spec_boolean ("close-socket", "Close socket",
+          "Close socket at the end of stream", DCCP_DEFAULT_CLOSED,
+          G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CCID,
+      g_param_spec_int ("ccid", "CCID",
+          "The Congestion Control IDentified to be used", 2, G_MAXINT,
+          DCCP_DEFAULT_CCID, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_CAPS,
+      g_param_spec_boxed ("caps", "Caps",
+          "The caps of the source pad", GST_TYPE_CAPS, G_PARAM_READWRITE));
+
+  /* signals */
+  /**
+   * GstDccpServerSrc::connected:
+   * @src: the gstdccpserversrc instance
+   * @fd: the connected socket fd
+   *
+   * Reports that the element has connected, giving the fd of the socket
+   */
+  gst_dccp_server_src_signals[SIGNAL_CONNECTED] =
+      g_signal_new ("connected", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
+      G_STRUCT_OFFSET (GstDCCPServerSrcClass, connected), NULL, NULL,
+      gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
+
+  gstbasesrc_class->start = gst_dccp_server_src_start;
+  gstbasesrc_class->stop = gst_dccp_server_src_stop;
+
+  gstpush_src_class->create = gst_dccp_server_src_create;
+
+  GST_DEBUG_CATEGORY_INIT (dccpserversrc_debug, "dccpserversrc", 0,
+      "DCCP Server Source");
+}
diff --git a/gst/dccp/gstdccpserversrc.h b/gst/dccp/gstdccpserversrc.h
new file mode 100644
index 00000000..87ef19a5
--- /dev/null
+++ b/gst/dccp/gstdccpserversrc.h
@@ -0,0 +1,94 @@
+/* GStreamer
+ * Copyright (C) <2007> Leandro Melo de Sales <leandroal@gmail.com>
+ *
+ * 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.
+ */
+
+#ifndef __GST_DCCP_SERVER_SRC_H__
+#define __GST_DCCP_SERVER_SRC_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstpushsrc.h>
+#include <gst/base/gstbasesrc.h>
+
+G_BEGIN_DECLS
+
+#include <netdb.h>                        /* sockaddr_in */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>                   /* sockaddr_in */
+#include <unistd.h>
+
+
+#define GST_TYPE_DCCP_SERVER_SRC \
+  (gst_dccp_server_src_get_type())
+#define GST_DCCP_SERVER_SRC(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DCCP_SERVER_SRC,GstDCCPServerSrc))
+#define GST_DCCP_SERVER_SRC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DCCP_SERVER_SRC,GstDCCPServerSrcClass))
+#define GST_IS_DCCP_SERVER_SRC(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DCCP_SERVER_SRC))
+#define GST_IS_DCCP_SERVER_SRC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DCCP_SERVER_SRC))
+
+typedef struct _GstDCCPServerSrc GstDCCPServerSrc;
+typedef struct _GstDCCPServerSrcClass GstDCCPServerSrcClass;
+
+struct _GstDCCPServerSrc
+{
+  GstPushSrc element;
+
+  /* server information */
+  int port;
+  gchar *host;
+  struct sockaddr_in server_sin;
+
+  /* socket */
+  int sock_fd;
+  gboolean closed;
+
+  GstCaps *caps;
+  uint8_t ccid;
+
+  /* single client */
+  int client_sock_fd;
+};
+
+struct _GstDCCPServerSrcClass
+{
+  GstPushSrcClass parent_class;
+
+  /* signals */
+  void (*connected) (GstElement *src, gint fd);
+};
+
+GType gst_dccp_server_src_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_DCCP_SERVER_SRC_H__ */
+
+
+
+
+
+
+
+
+
+
+
+