gstreamer/gst/udp/gstdynudpsink.c

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/* GStreamer
* Copyright (C) <2005> Philippe Khalaf <burger@speedy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstudp-marshal.h"
#include "gstdynudpsink.h"
#include <gst/net/gstnetbuffer.h>
GST_DEBUG_CATEGORY (dynudpsink_debug);
#define GST_CAT_DEFAULT (dynudpsink_debug)
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
/* elementfactory information */
static GstElementDetails gst_dynudpsink_details =
GST_ELEMENT_DETAILS ("UDP packet sender",
"Sink/Network",
"Send data over the network via UDP",
"Philippe Khalaf <burger@speedy.org>");
/* DynUDPSink signals and args */
enum
{
/* methods */
SIGNAL_GET_STATS,
/* signals */
/* FILL ME */
LAST_SIGNAL
};
enum
{
PROP_0,
/* FILL ME */
};
static void gst_dynudpsink_base_init (gpointer g_class);
static void gst_dynudpsink_class_init (GstDynUDPSink * klass);
static void gst_dynudpsink_init (GstDynUDPSink * udpsink);
static void gst_dynudpsink_finalize (GObject * object);
static void gst_dynudpsink_get_times (GstBaseSink * sink, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end);
static GstFlowReturn gst_dynudpsink_render (GstBaseSink * sink,
GstBuffer * buffer);
static void gst_dynudpsink_close (GstDynUDPSink * sink);
static GstElementStateReturn gst_dynudpsink_change_state (GstElement * element);
static void gst_dynudpsink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_dynudpsink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstElementClass *parent_class = NULL;
static guint gst_dynudpsink_signals[LAST_SIGNAL] = { 0 };
GType
gst_dynudpsink_get_type (void)
{
static GType dynudpsink_type = 0;
if (!dynudpsink_type) {
static const GTypeInfo dynudpsink_info = {
sizeof (GstDynUDPSinkClass),
gst_dynudpsink_base_init,
NULL,
(GClassInitFunc) gst_dynudpsink_class_init,
NULL,
NULL,
sizeof (GstDynUDPSink),
0,
(GInstanceInitFunc) gst_dynudpsink_init,
NULL
};
dynudpsink_type =
g_type_register_static (GST_TYPE_BASE_SINK, "GstDynUDPSink",
&dynudpsink_info, 0);
}
return dynudpsink_type;
}
static void
gst_dynudpsink_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_set_details (element_class, &gst_dynudpsink_details);
}
static void
gst_dynudpsink_class_init (GstDynUDPSink * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSinkClass *gstbasesink_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasesink_class = (GstBaseSinkClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_BASE_SINK);
gobject_class->set_property = gst_dynudpsink_set_property;
gobject_class->get_property = gst_dynudpsink_get_property;
gobject_class->finalize = gst_dynudpsink_finalize;
gst_dynudpsink_signals[SIGNAL_GET_STATS] =
g_signal_new ("get-stats", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstDynUDPSinkClass, get_stats),
NULL, NULL, gst_udp_marshal_BOXED__STRING_INT, G_TYPE_VALUE_ARRAY, 2,
G_TYPE_STRING, G_TYPE_INT);
gstelement_class->change_state = gst_dynudpsink_change_state;
gstbasesink_class->get_times = gst_dynudpsink_get_times;
gstbasesink_class->render = gst_dynudpsink_render;
GST_DEBUG_CATEGORY_INIT (dynudpsink_debug, "dynudpsink", 0, "UDP sink");
}
static void
gst_dynudpsink_init (GstDynUDPSink * sink)
{
}
static void
gst_dynudpsink_finalize (GObject * object)
{
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_dynudpsink_get_times (GstBaseSink * sink, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end)
{
*start = GST_BUFFER_TIMESTAMP (buffer);
*end = *start + GST_BUFFER_DURATION (buffer);
}
static GstFlowReturn
gst_dynudpsink_render (GstBaseSink * bsink, GstBuffer * buffer)
{
GstDynUDPSink *sink;
gint ret, size;
guint8 *data;
GstNetBuffer *netbuf;
struct sockaddr_in theiraddr;
memset (&theiraddr, 0, sizeof (theiraddr));
if (GST_IS_NETBUFFER (buffer)) {
netbuf = GST_NETBUFFER (buffer);
} else {
GST_DEBUG ("Received buffer is not a GstNetBuffer, skipping");
return GST_FLOW_OK;
}
sink = GST_DYNUDPSINK (bsink);
size = GST_BUFFER_SIZE (netbuf);
data = GST_BUFFER_DATA (netbuf);
GST_DEBUG ("about to send %d bytes", size);
guint16 destport;
guint32 destaddr;
// let's get the address from the netbuffer
gst_netaddress_get_ip4_address (&netbuf->to, &destaddr, &destport);
GST_DEBUG ("sending %d bytes to client %d port %d", size, destaddr, destport);
theiraddr.sin_family = AF_INET;
theiraddr.sin_addr.s_addr = destaddr;
theiraddr.sin_port = destport;
ret = sendto (sink->sock, data, size, 0,
(struct sockaddr *) &theiraddr, sizeof (theiraddr));
if (ret < 0) {
if (errno != EINTR && errno != EAGAIN) {
goto send_error;
}
}
GST_DEBUG ("sent %d bytes", size);
return GST_FLOW_OK;
send_error:
{
GST_DEBUG ("got send error %s (%d)", g_strerror (errno), errno);
return GST_FLOW_ERROR;
}
}
static void
gst_dynudpsink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstDynUDPSink *udpsink;
udpsink = GST_DYNUDPSINK (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_dynudpsink_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstDynUDPSink *udpsink;
udpsink = GST_DYNUDPSINK (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* create a socket for sending to remote machine */
static gboolean
gst_dynudpsink_init_send (GstDynUDPSink * sink)
{
guint bc_val;
gint ret;
/* create sender socket */
if ((sink->sock = socket (AF_INET, SOCK_DGRAM, 0)) == -1)
goto no_socket;
bc_val = 1;
if ((ret =
setsockopt (sink->sock, SOL_SOCKET, SO_BROADCAST, &bc_val,
sizeof (bc_val))) < 0)
goto no_broadcast;
return TRUE;
/* ERRORS */
no_socket:
{
perror ("socket");
return FALSE;
}
no_broadcast:
{
perror ("setsockopt");
return FALSE;
}
}
GValueArray *
gst_dynudpsink_get_stats (GstDynUDPSink * sink, const gchar * host, gint port)
{
return NULL;
}
static void
gst_dynudpsink_close (GstDynUDPSink * sink)
{
close (sink->sock);
}
static GstElementStateReturn
gst_dynudpsink_change_state (GstElement * element)
{
GstElementStateReturn ret;
GstDynUDPSink *sink;
gint transition;
sink = GST_DYNUDPSINK (element);
transition = GST_STATE_TRANSITION (element);
switch (transition) {
case GST_STATE_READY_TO_PAUSED:
if (!gst_dynudpsink_init_send (sink))
goto no_init;
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
switch (transition) {
case GST_STATE_PAUSED_TO_READY:
gst_dynudpsink_close (sink);
break;
default:
break;
}
return ret;
/* ERRORS */
no_init:
{
return GST_STATE_FAILURE;
}
}