+/* GStreamer
+ * 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 "gsttcpsink.h"
+
+#define TCP_DEFAULT_HOST "localhost"
+#define TCP_DEFAULT_PORT 4953
+
+/* elementfactory information */
+GstElementDetails gst_tcpsink_details = {
+ "TCP packet sender",
+ "Sink/Network",
+ "LGPL",
+ "Send data over the network via TCP",
+ VERSION,
+ "Zeeshan Ali <zak147@yahoo.com>",
+ "(C) 2003",
+};
+
+/* TCPSink signals and args */
+enum {
+ FRAME_ENCODED,
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum {
+ ARG_0,
+ ARG_HOST,
+ ARG_PORT,
+ /* FILL ME */
+};
+
+static void gst_tcpsink_class_init (GstTCPSink *klass);
+static void gst_tcpsink_init (GstTCPSink *tcpsink);
+
+static void gst_tcpsink_set_clock (GstElement *element, GstClock *clock);
+
+static void gst_tcpsink_chain (GstPad *pad,GstBuffer *buf);
+static GstElementStateReturn gst_tcpsink_change_state (GstElement *element);
+
+static void gst_tcpsink_set_property (GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *pspec);
+static void gst_tcpsink_get_property (GObject *object, guint prop_id,
+ GValue *value, GParamSpec *pspec);
+
+
+static GstElementClass *parent_class = NULL;
+/*static guint gst_tcpsink_signals[LAST_SIGNAL] = { 0 }; */
+
+GType
+gst_tcpsink_get_type (void)
+{
+ static GType tcpsink_type = 0;
+
+
+ if (!tcpsink_type) {
+ static const GTypeInfo tcpsink_info = {
+ sizeof(GstTCPSinkClass),
+ NULL,
+ NULL,
+ (GClassInitFunc)gst_tcpsink_class_init,
+ NULL,
+ NULL,
+ sizeof(GstTCPSink),
+ 0,
+ (GInstanceInitFunc)gst_tcpsink_init,
+ NULL
+ };
+ tcpsink_type = g_type_register_static (GST_TYPE_ELEMENT, "GstTCPSink", &tcpsink_info, 0);
+ }
+ return tcpsink_type;
+}
+
+static void
+gst_tcpsink_class_init (GstTCPSink *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", "host", "The host/IP to send the packets to",
+ TCP_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, TCP_DEFAULT_PORT, G_PARAM_READWRITE));
+
+ gobject_class->set_property = gst_tcpsink_set_property;
+ gobject_class->get_property = gst_tcpsink_get_property;
+
+ gstelement_class->change_state = gst_tcpsink_change_state;
+ gstelement_class->set_clock = gst_tcpsink_set_clock;
+}
+
+
+static GstPadLinkReturn
+gst_tcpsink_sinkconnect (GstPad *pad, GstCaps *caps)
+{
+ GstTCPSink *tcpsink;
+ struct sockaddr_in serv_addr;
+ struct in_addr addr;
+ struct hostent *he;
+ int fd;
+ FILE *f;
+#ifndef GST_DISABLE_LOADSAVE
+ xmlDocPtr doc;
+
+ tcpsink = GST_TCPSINK (gst_pad_get_parent (pad));
+
+ memset (&serv_addr, 0, sizeof(serv_addr));
+
+ /* if its an IP address */
+ if (inet_aton (tcpsink->host, &addr)) {
+ memmove (&(serv_addr.sin_addr), &addr, sizeof (struct in_addr));
+ }
+
+ /* we dont need to lookup for localhost */
+ else if (strcmp (tcpsink->host, TCP_DEFAULT_HOST) == 0) {
+ if (inet_aton ("127.0.0.1", &addr)) {
+ memmove (&(serv_addr.sin_addr), &addr, sizeof (struct in_addr));
+ }
+ }
+
+ /* if its a hostname */
+ else if ((he = gethostbyname (tcpsink->host))) {
+ memmove (&(serv_addr.sin_addr), he->h_addr, he->h_length);
+ }
+
+ else {
+ perror("hostname lookup error?");
+ return GST_PAD_LINK_REFUSED;
+ }
+
+ serv_addr.sin_family = AF_INET;
+ serv_addr.sin_port = htons(tcpsink->port+1);
+
+ doc = xmlNewDoc ("1.0");
+ doc->xmlRootNode = xmlNewDocNode (doc, NULL, "NewCaps", NULL);
+
+ gst_caps_save_thyself (caps, doc->xmlRootNode);
+
+ if ((fd = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ return GST_PAD_LINK_REFUSED;
+ }
+
+ if (connect(fd, (struct sockaddr *)&serv_addr, sizeof (serv_addr)) != 0) {
+ g_printerr ("tcpsink: connect to %s port %d failed: %s\n",
+ tcpsink->host, tcpsink->port+1, g_strerror(errno));
+ return GST_PAD_LINK_REFUSED;
+ }
+
+ f = fdopen (dup (fd), "wb");
+
+ xmlDocDump(f, doc);
+ fclose (f);
+ close (fd);
+#endif
+
+ return GST_PAD_LINK_OK;
+}
+
+static void
+gst_tcpsink_set_clock (GstElement *element, GstClock *clock)
+{
+ GstTCPSink *tcpsink;
+
+ tcpsink = GST_TCPSINK (element);
+
+ tcpsink->clock = clock;
+}
+
+static void
+gst_tcpsink_init (GstTCPSink *tcpsink)
+{
+ /* create the sink and src pads */
+ tcpsink->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
+ gst_element_add_pad (GST_ELEMENT (tcpsink), tcpsink->sinkpad);
+ gst_pad_set_chain_function (tcpsink->sinkpad, gst_tcpsink_chain);
+ gst_pad_set_link_function (tcpsink->sinkpad, gst_tcpsink_sinkconnect);
+
+ tcpsink->host = g_strdup (TCP_DEFAULT_HOST);
+ tcpsink->port = TCP_DEFAULT_PORT;
+
+ tcpsink->clock = NULL;
+}
+
+static void
+gst_tcpsink_chain (GstPad *pad, GstBuffer *buf)
+{
+ GstTCPSink *tcpsink;
+
+ g_return_if_fail (pad != NULL);
+ g_return_if_fail (GST_IS_PAD (pad));
+ g_return_if_fail (buf != NULL);
+
+ tcpsink = GST_TCPSINK (GST_OBJECT_PARENT (pad));
+
+ if (tcpsink->clock) {
+ GstClockID id = gst_clock_new_single_shot_id (tcpsink->clock, GST_BUFFER_TIMESTAMP (buf));
+
+ GST_DEBUG (0, "tcpsink: clock wait: %" G_GUINT64_FORMAT "\n", GST_BUFFER_TIMESTAMP (buf));
+ gst_element_clock_wait (GST_ELEMENT (tcpsink), id, NULL);
+ gst_clock_id_free (id);
+ }
+
+ if (write (tcpsink->sock, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf)) <= 0)
+ {
+ perror("write");
+ }
+
+ gst_buffer_unref(buf);
+}
+
+static void
+gst_tcpsink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+ GstTCPSink *tcpsink;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail(GST_IS_TCPSINK(object));
+ tcpsink = GST_TCPSINK(object);
+
+ switch (prop_id) {
+ case ARG_HOST:
+ if (tcpsink->host != NULL) g_free(tcpsink->host);
+ if (g_value_get_string (value) == NULL)
+ tcpsink->host = NULL;
+ else
+ tcpsink->host = g_strdup (g_value_get_string (value));
+ break;
+ case ARG_PORT:
+ tcpsink->port = g_value_get_int (value);
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+gst_tcpsink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+ GstTCPSink *tcpsink;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail(GST_IS_TCPSINK(object));
+ tcpsink = GST_TCPSINK(object);
+
+ switch (prop_id) {
+ case ARG_HOST:
+ g_value_set_string (value, tcpsink->host);
+ break;
+ case ARG_PORT:
+ g_value_set_int (value, tcpsink->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_tcpsink_init_send (GstTCPSink *sink)
+{
+ struct hostent *he;
+ struct in_addr addr;
+
+ 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 its an IP address */
+ if (inet_aton (sink->host, &addr)) {
+ memmove (&(sink->theiraddr.sin_addr), &addr, sizeof (struct in_addr));
+ }
+
+ /* we dont need to lookup for localhost */
+ else if (strcmp (sink->host, TCP_DEFAULT_HOST) == 0) {
+ if (inet_aton ("127.0.0.1", &addr)) {
+ memmove (&(sink->theiraddr.sin_addr), &addr, sizeof (struct in_addr));
+ }
+ }
+
+ /* if its a hostname */
+ else if ((he = gethostbyname (sink->host))) {
+ memmove (&(sink->theiraddr.sin_addr), he->h_addr, he->h_length);
+ }
+
+ else {
+ perror("hostname lookup error?");
+ return FALSE;
+ }
+
+ if ((sink->sock = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ return FALSE;
+ }
+
+ if (connect (sink->sock, (struct sockaddr *)&(sink->theiraddr), sizeof (sink->theiraddr)) != 0) {
+ perror("stream connect");
+ return FALSE;
+ }
+
+ g_print ("tcpsink: connected to %s port %d\n", sink->host, sink->port);
+
+ GST_FLAG_SET (sink, GST_TCPSINK_OPEN);
+
+ return TRUE;
+}
+
+static void
+gst_tcpsink_close (GstTCPSink *sink)
+{
+ close (sink->sock);
+
+ GST_FLAG_UNSET (sink, GST_TCPSINK_OPEN);
+}
+
+static GstElementStateReturn
+gst_tcpsink_change_state (GstElement *element)
+{
+ g_return_val_if_fail (GST_IS_TCPSINK (element), GST_STATE_FAILURE);
+
+ if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
+ if (GST_FLAG_IS_SET (element, GST_TCPSINK_OPEN))
+ gst_tcpsink_close (GST_TCPSINK (element));
+ } else {
+ if (!GST_FLAG_IS_SET (element, GST_TCPSINK_OPEN)) {
+ if (!gst_tcpsink_init_send (GST_TCPSINK (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;
+}
+
projects / platform / upstream / gstreamer.git / commitdiff