mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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cca77e215b
Original commit message from CVS: * a hack to work around intltool's brokenness * a current check for mpeg2dec * details->klass reorganizations * an element browser that uses details->klass * separated cdxa parse out from the avi directory
303 lines
7.9 KiB
C
303 lines
7.9 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "gstudpsink.h"
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#define UDP_DEFAULT_HOST "localhost"
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#define UDP_DEFAULT_PORT 4951
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/* elementfactory information */
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GstElementDetails gst_udpsink_details = {
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"UDP packet sender",
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"Sink/Network",
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"",
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VERSION,
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"Wim Taymans <wim.taymans@chello.be>",
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"(C) 2001",
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};
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/* UDPSink signals and args */
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enum {
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FRAME_ENCODED,
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/* FILL ME */
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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ARG_HOST,
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ARG_PORT,
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/* FILL ME */
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};
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static void gst_udpsink_class_init (GstUDPSink *klass);
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static void gst_udpsink_init (GstUDPSink *udpsink);
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static void gst_udpsink_chain (GstPad *pad,GstBuffer *buf);
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static GstElementStateReturn gst_udpsink_change_state (GstElement *element);
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static void gst_udpsink_set_property (GObject *object, guint prop_id,
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const GValue *value, GParamSpec *pspec);
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static void gst_udpsink_get_property (GObject *object, guint prop_id,
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GValue *value, GParamSpec *pspec);
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static GstElementClass *parent_class = NULL;
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/*static guint gst_udpsink_signals[LAST_SIGNAL] = { 0 }; */
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GType
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gst_udpsink_get_type (void)
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{
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static GType udpsink_type = 0;
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if (!udpsink_type) {
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static const GTypeInfo udpsink_info = {
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sizeof(GstUDPSinkClass),
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NULL,
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NULL,
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(GClassInitFunc)gst_udpsink_class_init,
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NULL,
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NULL,
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sizeof(GstUDPSink),
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0,
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(GInstanceInitFunc)gst_udpsink_init,
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NULL
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};
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udpsink_type = g_type_register_static (GST_TYPE_ELEMENT, "GstUDPSink", &udpsink_info, 0);
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}
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return udpsink_type;
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}
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static void
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gst_udpsink_class_init (GstUDPSink *klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass*) klass;
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gstelement_class = (GstElementClass*) klass;
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HOST,
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g_param_spec_string ("host", "nost", "The host to send the packets to",
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UDP_DEFAULT_HOST, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PORT,
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g_param_spec_int ("port", "port", "The port to send the packets to",
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0, 32768, UDP_DEFAULT_PORT, G_PARAM_READWRITE));
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gobject_class->set_property = gst_udpsink_set_property;
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gobject_class->get_property = gst_udpsink_get_property;
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gstelement_class->change_state = gst_udpsink_change_state;
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}
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static GstPadConnectReturn
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gst_udpsink_sinkconnect (GstPad *pad, GstCaps *caps)
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{
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GstUDPSink *udpsink;
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struct sockaddr_in serv_addr;
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struct hostent *serverhost;
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int fd;
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FILE *f;
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#ifndef GST_DISABLE_LOADSAVE
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xmlDocPtr doc;
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#endif
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udpsink = GST_UDPSINK (gst_pad_get_parent (pad));
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fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if (fd < 0) {
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perror("socket");
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return GST_PAD_CONNECT_REFUSED;
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}
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memset(&serv_addr, 0, sizeof(serv_addr));
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/* its a name rather than an ipnum */
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serverhost = gethostbyname(udpsink->host);
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if (serverhost == (struct hostent *)0) {
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perror("gethostbyname");
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return GST_PAD_CONNECT_REFUSED;
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}
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memmove(&serv_addr.sin_addr,serverhost->h_addr, serverhost->h_length);
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serv_addr.sin_family = AF_INET;
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serv_addr.sin_port = htons(udpsink->port);
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if (connect(fd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) != 0) {
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g_printerr ("udpsink: connect to %s port %d failed: %s\n",
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udpsink->host, udpsink->port, sys_errlist[errno]);
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return GST_PAD_CONNECT_REFUSED;
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}
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f = fdopen (dup (fd), "wb");
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#ifndef GST_DISABLE_LOADSAVE
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doc = xmlNewDoc ("1.0");
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doc->xmlRootNode = xmlNewDocNode (doc, NULL, "NewCaps", NULL);
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gst_caps_save_thyself (caps, doc->xmlRootNode);
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xmlDocDump(f, doc);
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#endif
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fclose (f);
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close (fd);
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return GST_PAD_CONNECT_OK;
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}
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static void
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gst_udpsink_init (GstUDPSink *udpsink)
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{
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/* create the sink and src pads */
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udpsink->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
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gst_element_add_pad (GST_ELEMENT (udpsink), udpsink->sinkpad);
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gst_pad_set_chain_function (udpsink->sinkpad, gst_udpsink_chain);
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gst_pad_set_connect_function (udpsink->sinkpad, gst_udpsink_sinkconnect);
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udpsink->host = g_strdup (UDP_DEFAULT_HOST);
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udpsink->port = UDP_DEFAULT_PORT;
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}
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static void
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gst_udpsink_chain (GstPad *pad, GstBuffer *buf)
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{
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GstUDPSink *udpsink;
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int tolen;
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g_return_if_fail (pad != NULL);
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g_return_if_fail (GST_IS_PAD (pad));
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g_return_if_fail (buf != NULL);
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udpsink = GST_UDPSINK (GST_OBJECT_PARENT (pad));
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tolen = sizeof(udpsink->theiraddr);
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if (sendto (udpsink->sock, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf), 0,
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(struct sockaddr *) &udpsink->theiraddr, tolen) == -1)
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{
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perror("sending");
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}
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gst_buffer_unref(buf);
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}
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static void
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gst_udpsink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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{
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GstUDPSink *udpsink;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_UDPSINK(object));
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udpsink = GST_UDPSINK(object);
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switch (prop_id) {
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case ARG_HOST:
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if (udpsink->host != NULL) g_free(udpsink->host);
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if (g_value_get_string (value) == NULL)
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udpsink->host = NULL;
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else
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udpsink->host = g_strdup (g_value_get_string (value));
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break;
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case ARG_PORT:
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udpsink->port = g_value_get_int (value);
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break;
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default:
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break;
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}
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}
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static void
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gst_udpsink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
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{
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GstUDPSink *udpsink;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_UDPSINK(object));
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udpsink = GST_UDPSINK(object);
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switch (prop_id) {
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case ARG_HOST:
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g_value_set_string (value, udpsink->host);
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break;
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case ARG_PORT:
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g_value_set_int (value, udpsink->port);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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/* create a socket for sending to remote machine */
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static gboolean
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gst_udpsink_init_send (GstUDPSink *sink)
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{
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struct hostent *he;
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bzero (&sink->theiraddr, sizeof (sink->theiraddr));
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sink->theiraddr.sin_family = AF_INET; /* host byte order */
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sink->theiraddr.sin_port = htons (sink->port); /* short, network byte order */
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if ((he = gethostbyname (sink->host)) == NULL) {
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perror("gethostbyname");
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return FALSE;
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}
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sink->theiraddr.sin_addr = *((struct in_addr *) he->h_addr);
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if ((sink->sock = socket (AF_INET, SOCK_DGRAM, 0)) == -1) {
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perror("socket");
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return FALSE;
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}
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GST_FLAG_SET (sink, GST_UDPSINK_OPEN);
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return TRUE;
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}
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static void
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gst_udpsink_close (GstUDPSink *sink)
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{
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close (sink->sock);
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GST_FLAG_UNSET (sink, GST_UDPSINK_OPEN);
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}
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static GstElementStateReturn
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gst_udpsink_change_state (GstElement *element)
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{
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g_return_val_if_fail (GST_IS_UDPSINK (element), GST_STATE_FAILURE);
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if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
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if (GST_FLAG_IS_SET (element, GST_UDPSINK_OPEN))
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gst_udpsink_close (GST_UDPSINK (element));
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} else {
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if (!GST_FLAG_IS_SET (element, GST_UDPSINK_OPEN)) {
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if (!gst_udpsink_init_send (GST_UDPSINK (element)))
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return GST_STATE_FAILURE;
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}
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}
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if (GST_ELEMENT_CLASS (parent_class)->change_state)
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return GST_ELEMENT_CLASS (parent_class)->change_state (element);
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return GST_STATE_SUCCESS;
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}
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