gstreamer/gst/udp/gstudpsink.c

327 lines
8 KiB
C

/* GStreamer
* Copyright (C) <2005> Wim Taymans <wim@fluendo.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-udpsink
* @see_also: udpsrc, multifdsink
*
* udpsink is a network sink that sends UDP packets to the network.
* It can be combined with RTP payloaders to implement RTP streaming.
*
* <refsect2>
* <title>Examples</title>
* |[
* gst-launch -v audiotestsrc ! udpsink
* ]|
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstudpsink.h"
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <errno.h>
#include <string.h>
#define UDP_DEFAULT_HOST "localhost"
#define UDP_DEFAULT_PORT 4951
/* elementfactory information */
static const GstElementDetails gst_udpsink_details =
GST_ELEMENT_DETAILS ("UDP packet sender",
"Sink/Network",
"Send data over the network via UDP",
"Wim Taymans <wim@fluendo.com>");
/* UDPSink signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_HOST,
PROP_PORT,
PROP_URI,
/* FILL ME */
};
static void gst_udpsink_base_init (gpointer g_class);
static void gst_udpsink_class_init (GstUDPSink * klass);
static void gst_udpsink_init (GstUDPSink * udpsink);
static void gst_udpsink_finalize (GstUDPSink * udpsink);
static void gst_udpsink_uri_handler_init (gpointer g_iface,
gpointer iface_data);
static void gst_udpsink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_udpsink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstElementClass *parent_class = NULL;
/*static guint gst_udpsink_signals[LAST_SIGNAL] = { 0 }; */
GType
gst_udpsink_get_type (void)
{
static GType udpsink_type = 0;
if (!udpsink_type) {
static const GTypeInfo udpsink_info = {
sizeof (GstUDPSinkClass),
gst_udpsink_base_init,
NULL,
(GClassInitFunc) gst_udpsink_class_init,
NULL,
NULL,
sizeof (GstUDPSink),
0,
(GInstanceInitFunc) gst_udpsink_init,
NULL
};
static const GInterfaceInfo urihandler_info = {
gst_udpsink_uri_handler_init,
NULL,
NULL
};
udpsink_type =
g_type_register_static (GST_TYPE_MULTIUDPSINK, "GstUDPSink",
&udpsink_info, 0);
g_type_add_interface_static (udpsink_type, GST_TYPE_URI_HANDLER,
&urihandler_info);
}
return udpsink_type;
}
static void
gst_udpsink_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details (element_class, &gst_udpsink_details);
}
static void
gst_udpsink_class_init (GstUDPSink * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSinkClass *gstbasesink_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasesink_class = (GstBaseSinkClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gobject_class->set_property = gst_udpsink_set_property;
gobject_class->get_property = gst_udpsink_get_property;
gobject_class->finalize = (GObjectFinalizeFunc) gst_udpsink_finalize;
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_HOST,
g_param_spec_string ("host", "host",
"The host/IP/Multicast group to send the packets to",
UDP_DEFAULT_HOST, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PORT,
g_param_spec_int ("port", "port", "The port to send the packets to",
0, 65535, UDP_DEFAULT_PORT, G_PARAM_READWRITE));
}
static void
gst_udpsink_init (GstUDPSink * udpsink)
{
udpsink->host = g_strdup (UDP_DEFAULT_HOST);
udpsink->port = UDP_DEFAULT_PORT;
gst_multiudpsink_add (GST_MULTIUDPSINK (udpsink), udpsink->host,
udpsink->port);
}
static void
gst_udpsink_finalize (GstUDPSink * udpsink)
{
g_free (udpsink->host);
g_free (udpsink->uri);
G_OBJECT_CLASS (parent_class)->finalize ((GObject *) udpsink);
}
static void
gst_udpsink_update_uri (GstUDPSink * sink)
{
g_free (sink->uri);
sink->uri = g_strdup_printf ("udp://%s:%d", sink->host, sink->port);
GST_DEBUG_OBJECT (sink, "updated uri to %s", sink->uri);
}
static gboolean
gst_udpsink_set_uri (GstUDPSink * sink, const gchar * uri)
{
gchar *protocol;
gchar *location;
gchar *colptr;
protocol = gst_uri_get_protocol (uri);
if (strcmp (protocol, "udp") != 0)
goto wrong_protocol;
g_free (protocol);
location = gst_uri_get_location (uri);
if (!location)
return FALSE;
colptr = strstr (location, ":");
gst_multiudpsink_remove (GST_MULTIUDPSINK (sink), sink->host, sink->port);
if (colptr != NULL) {
g_free (sink->host);
sink->host = g_strndup (location, colptr - location);
sink->port = atoi (colptr + 1);
} else {
g_free (sink->host);
sink->host = g_strdup (location);
sink->port = UDP_DEFAULT_PORT;
}
g_free (location);
gst_multiudpsink_add (GST_MULTIUDPSINK (sink), sink->host, sink->port);
gst_udpsink_update_uri (sink);
return TRUE;
/* ERRORS */
wrong_protocol:
{
GST_ELEMENT_ERROR (sink, RESOURCE, READ, (NULL),
("error parsing uri %s: wrong protocol (%s != udp)", uri, protocol));
g_free (protocol);
return FALSE;
}
}
static void
gst_udpsink_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstUDPSink *udpsink;
udpsink = GST_UDPSINK (object);
/* remove old host */
gst_multiudpsink_remove (GST_MULTIUDPSINK (udpsink),
udpsink->host, udpsink->port);
switch (prop_id) {
case PROP_HOST:
g_free (udpsink->host);
udpsink->host = g_value_dup_string (value);
break;
case PROP_PORT:
udpsink->port = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
/* add new host */
gst_multiudpsink_add (GST_MULTIUDPSINK (udpsink),
udpsink->host, udpsink->port);
}
static void
gst_udpsink_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstUDPSink *udpsink;
udpsink = GST_UDPSINK (object);
switch (prop_id) {
case PROP_HOST:
g_value_set_string (value, udpsink->host);
break;
case PROP_PORT:
g_value_set_int (value, udpsink->port);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/*** GSTURIHANDLER INTERFACE *************************************************/
static GstURIType
gst_udpsink_uri_get_type (void)
{
return GST_URI_SINK;
}
static gchar **
gst_udpsink_uri_get_protocols (void)
{
static gchar *protocols[] = { "udp", NULL };
return protocols;
}
static const gchar *
gst_udpsink_uri_get_uri (GstURIHandler * handler)
{
GstUDPSink *sink = GST_UDPSINK (handler);
return g_strdup (sink->uri);
}
static gboolean
gst_udpsink_uri_set_uri (GstURIHandler * handler, const gchar * uri)
{
gboolean ret;
GstUDPSink *sink = GST_UDPSINK (handler);
ret = gst_udpsink_set_uri (sink, uri);
return ret;
}
static void
gst_udpsink_uri_handler_init (gpointer g_iface, gpointer iface_data)
{
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
iface->get_type = gst_udpsink_uri_get_type;
iface->get_protocols = gst_udpsink_uri_get_protocols;
iface->get_uri = gst_udpsink_uri_get_uri;
iface->set_uri = gst_udpsink_uri_set_uri;
}