gstreamer/gst/udp/gstmultiudpsink.c
Wim Taymans 589b8282e8 gst/udp/gstmultiudpsink.c: Fix multicast detection.
Original commit message from CVS:
* gst/udp/gstmultiudpsink.c: (gst_multiudpsink_add):
Fix multicast detection.
Don't try to join a multicast group if the address is not multicast.
* gst/udp/gstudpsrc.c: (gst_udpsrc_update_uri):
Small debug improvement.
2007-04-29 12:19:21 +00:00

700 lines
20 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-multiupdsink
* @see_also: udpsink, multifdsink
*
* <refsect2>
* <para>
* multiudpsink is a network sink that sends UDP packets to multiple
* clients.
* It can be combined with rtp payload encoders to implement RTP streaming.
* </para>
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstudp-marshal.h"
#include "gstmultiudpsink.h"
GST_DEBUG_CATEGORY_STATIC (multiudpsink_debug);
#define GST_CAT_DEFAULT (multiudpsink_debug)
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
/* elementfactory information */
static const GstElementDetails gst_multiudpsink_details =
GST_ELEMENT_DETAILS ("UDP packet sender",
"Sink/Network",
"Send data over the network via UDP",
"Wim Taymans <wim@fluendo.com>");
/* MultiUDPSink signals and args */
enum
{
/* methods */
SIGNAL_ADD,
SIGNAL_REMOVE,
SIGNAL_CLEAR,
SIGNAL_GET_STATS,
/* signals */
SIGNAL_CLIENT_ADDED,
SIGNAL_CLIENT_REMOVED,
/* FILL ME */
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_BYTES_TO_SERVE,
PROP_BYTES_SERVED,
/* FILL ME */
};
static void gst_multiudpsink_base_init (gpointer g_class);
static void gst_multiudpsink_class_init (GstMultiUDPSinkClass * klass);
static void gst_multiudpsink_init (GstMultiUDPSink * udpsink);
static void gst_multiudpsink_finalize (GObject * object);
static GstFlowReturn gst_multiudpsink_render (GstBaseSink * sink,
GstBuffer * buffer);
static GstStateChangeReturn gst_multiudpsink_change_state (GstElement *
element, GstStateChange transition);
static void gst_multiudpsink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_multiudpsink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void free_client (GstUDPClient * client);
static GstElementClass *parent_class = NULL;
static guint gst_multiudpsink_signals[LAST_SIGNAL] = { 0 };
GType
gst_multiudpsink_get_type (void)
{
static GType multiudpsink_type = 0;
if (!multiudpsink_type) {
static const GTypeInfo multiudpsink_info = {
sizeof (GstMultiUDPSinkClass),
gst_multiudpsink_base_init,
NULL,
(GClassInitFunc) gst_multiudpsink_class_init,
NULL,
NULL,
sizeof (GstMultiUDPSink),
0,
(GInstanceInitFunc) gst_multiudpsink_init,
NULL
};
multiudpsink_type =
g_type_register_static (GST_TYPE_BASE_SINK, "GstMultiUDPSink",
&multiudpsink_info, 0);
}
return multiudpsink_type;
}
static void
gst_multiudpsink_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_multiudpsink_details);
}
static void
gst_multiudpsink_class_init (GstMultiUDPSinkClass * 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_multiudpsink_set_property;
gobject_class->get_property = gst_multiudpsink_get_property;
gobject_class->finalize = gst_multiudpsink_finalize;
/**
* GstMultiUDPSink::add:
* @gstmultiudpsink: the sink on which the signal is emitted
* @host: the hostname/IP address of the client to add
* @port: the port of the client to add
*
* Add a client with destination @host and @port to the list of
* clients.
*/
gst_multiudpsink_signals[SIGNAL_ADD] =
g_signal_new ("add", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstMultiUDPSinkClass, add),
NULL, NULL, gst_udp_marshal_VOID__STRING_INT, G_TYPE_NONE, 2,
G_TYPE_STRING, G_TYPE_INT);
/**
* GstMultiUDPSink::remove:
* @gstmultiudpsink: the sink on which the signal is emitted
* @host: the hostname/IP address of the client to remove
* @port: the port of the client to remove
*
* Remove the client with destination @host and @port from the list of
* clients.
*/
gst_multiudpsink_signals[SIGNAL_REMOVE] =
g_signal_new ("remove", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstMultiUDPSinkClass, remove),
NULL, NULL, gst_udp_marshal_VOID__STRING_INT, G_TYPE_NONE, 2,
G_TYPE_STRING, G_TYPE_INT);
/**
* GstMultiUDPSink::clear:
* @gstmultiudpsink: the sink on which the signal is emitted
*
* Clear the list of clients.
*/
gst_multiudpsink_signals[SIGNAL_CLEAR] =
g_signal_new ("clear", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstMultiUDPSinkClass, clear),
NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
/**
* GstMultiUDPSink::get-stats:
* @gstmultiudpsink: the sink on which the signal is emitted
* @host: the hostname/IP address of the client to get stats on
* @port: the port of the client to get stats on
*
* Get the statistics of the client with destination @host and @port.
*
* Returns: a GValueArray of uint64: bytes_sent, packets_sent,
* connect_time (in epoch seconds), disconnect_time (in epoch seconds)
*/
gst_multiudpsink_signals[SIGNAL_GET_STATS] =
g_signal_new ("get-stats", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstMultiUDPSinkClass, get_stats),
NULL, NULL, gst_udp_marshal_BOXED__STRING_INT, G_TYPE_VALUE_ARRAY, 2,
G_TYPE_STRING, G_TYPE_INT);
/**
* GstMultiUDPSink::client-added:
* @gstmultiudpsink: the sink emitting the signal
* @host: the hostname/IP address of the added client
* @port: the port of the added client
*
* Signal emited when a new client is added to the list of
* clients.
*/
gst_multiudpsink_signals[SIGNAL_CLIENT_ADDED] =
g_signal_new ("client-added", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstMultiUDPSinkClass, client_added),
NULL, NULL, gst_udp_marshal_VOID__STRING_INT, G_TYPE_NONE, 2,
G_TYPE_STRING, G_TYPE_INT);
/**
* GstMultiUDPSink::client-removed:
* @gstmultiudpsink: the sink emitting the signal
* @host: the hostname/IP address of the removed client
* @port: the port of the removed client
*
* Signal emited when a client is removed from the list of
* clients.
*/
gst_multiudpsink_signals[SIGNAL_CLIENT_REMOVED] =
g_signal_new ("client-removed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstMultiUDPSinkClass,
client_removed), NULL, NULL, gst_udp_marshal_VOID__STRING_INT,
G_TYPE_NONE, 2, G_TYPE_STRING, G_TYPE_INT);
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BYTES_TO_SERVE,
g_param_spec_uint64 ("bytes-to-serve", "Bytes to serve",
"Number of bytes received to serve to clients", 0, G_MAXUINT64, 0,
G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BYTES_SERVED,
g_param_spec_uint64 ("bytes-served", "Bytes served",
"Total number of bytes send to all clients", 0, G_MAXUINT64, 0,
G_PARAM_READABLE));
gstelement_class->change_state = gst_multiudpsink_change_state;
gstbasesink_class->render = gst_multiudpsink_render;
klass->add = gst_multiudpsink_add;
klass->remove = gst_multiudpsink_remove;
klass->clear = gst_multiudpsink_clear;
klass->get_stats = gst_multiudpsink_get_stats;
GST_DEBUG_CATEGORY_INIT (multiudpsink_debug, "multiudpsink", 0, "UDP sink");
}
static void
gst_multiudpsink_init (GstMultiUDPSink * sink)
{
WSA_STARTUP (sink);
sink->client_lock = g_mutex_new ();
}
static void
gst_multiudpsink_finalize (GObject * object)
{
GstMultiUDPSink *sink;
sink = GST_MULTIUDPSINK (object);
g_list_foreach (sink->clients, (GFunc) free_client, NULL);
g_list_free (sink->clients);
g_mutex_free (sink->client_lock);
WSA_CLEANUP (object);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstFlowReturn
gst_multiudpsink_render (GstBaseSink * bsink, GstBuffer * buffer)
{
GstMultiUDPSink *sink;
gint ret, size, num = 0;
guint8 *data;
GList *clients;
sink = GST_MULTIUDPSINK (bsink);
size = GST_BUFFER_SIZE (buffer);
data = GST_BUFFER_DATA (buffer);
sink->bytes_to_serve += size;
/* grab lock while iterating and sending to clients, this shuld be
* fast as UDP never blocks */
g_mutex_lock (sink->client_lock);
GST_LOG_OBJECT (bsink, "about to send %d bytes", size);
for (clients = sink->clients; clients; clients = g_list_next (clients)) {
GstUDPClient *client;
client = (GstUDPClient *) clients->data;
num++;
GST_LOG_OBJECT (sink, "sending %d bytes to client %p", size, client);
while (TRUE) {
ret = sendto (*client->sock, data, size, 0,
(struct sockaddr *) &client->theiraddr, sizeof (client->theiraddr));
if (ret < 0) {
if (errno != EINTR && errno != EAGAIN) {
goto send_error;
}
} else {
client->bytes_sent += ret;
client->packets_sent++;
sink->bytes_served += ret;
break;
}
}
}
g_mutex_unlock (sink->client_lock);
GST_LOG_OBJECT (sink, "sent %d bytes to %d clients", size, num);
return GST_FLOW_OK;
/* ERRORS */
send_error:
{
/* if sendto returns an error, something is seriously wrong */
g_mutex_unlock (sink->client_lock);
GST_DEBUG_OBJECT (sink, "got send error %d: %s", errno, g_strerror (errno));
GST_ELEMENT_ERROR (sink, STREAM, FAILED, (NULL),
("Got send error %d: %s", errno, g_strerror (errno)));
return GST_FLOW_ERROR;
}
}
static void
gst_multiudpsink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstMultiUDPSink *udpsink;
udpsink = GST_MULTIUDPSINK (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_multiudpsink_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstMultiUDPSink *udpsink;
udpsink = GST_MULTIUDPSINK (object);
switch (prop_id) {
case PROP_BYTES_TO_SERVE:
g_value_set_uint64 (value, udpsink->bytes_to_serve);
break;
case PROP_BYTES_SERVED:
g_value_set_uint64 (value, udpsink->bytes_served);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
join_multicast (GstUDPClient * client)
{
unsigned char ttl = 64;
unsigned char loop = 1;
/* Joining the multicast group */
/* FIXME, can we use multicast and unicast over the same
* socket? if not, search for socket of this multicast group or
* create a new one. */
if (setsockopt (*(client->sock), IPPROTO_IP, IP_ADD_MEMBERSHIP,
&(client->multi_addr), sizeof (client->multi_addr)) < 0)
perror ("setsockopt IP_ADD_MEMBERSHIP\n");
if (setsockopt (*(client->sock), IPPROTO_IP, IP_MULTICAST_TTL, &ttl,
sizeof (ttl)) < 0)
perror ("setsockopt IP_MULTICAST_TTL\n");
if (setsockopt (*(client->sock), IPPROTO_IP, IP_MULTICAST_LOOP, &loop,
sizeof (loop)) < 0)
perror ("setsockopt IP_MULTICAST_LOOP\n");
}
/* create a socket for sending to remote machine */
static gboolean
gst_multiudpsink_init_send (GstMultiUDPSink * sink)
{
guint bc_val;
gint ret;
GList *clients;
GstUDPClient *client;
/* 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;
sink->bytes_to_serve = 0;
sink->bytes_served = 0;
/* look for multicast clients and join multicast groups approptiately */
for (clients = sink->clients; clients; clients = g_list_next (clients)) {
client = (GstUDPClient *) clients->data;
if (client->multi_addr.imr_multiaddr.s_addr)
join_multicast (client);
}
return TRUE;
/* ERRORS */
no_socket:
{
GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (NULL),
("Could not create socket (%d): %s", errno, g_strerror (errno)));
return FALSE;
}
no_broadcast:
{
GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
("Could not set broadcast socket option (%d): %s", errno,
g_strerror (errno)));
return FALSE;
}
}
static void
gst_multiudpsink_close (GstMultiUDPSink * sink)
{
CLOSE_SOCKET (sink->sock);
}
void
gst_multiudpsink_add (GstMultiUDPSink * sink, const gchar * host, gint port)
{
struct hostent *he;
struct in_addr addr;
GstUDPClient *client;
GTimeVal now;
GST_DEBUG_OBJECT (sink, "adding client on host %s, port %d", host, port);
client = g_new0 (GstUDPClient, 1);
client->host = g_strdup (host);
client->port = port;
client->sock = &sink->sock;
memset (&client->theiraddr, 0, sizeof (client->theiraddr));
memset (&client->multi_addr, 0, sizeof (client->multi_addr));
client->theiraddr.sin_family = AF_INET; /* host byte order */
client->theiraddr.sin_port = htons (port); /* short, network byte order */
g_get_current_time (&now);
client->connect_time = GST_TIMEVAL_TO_TIME (now);
/* if its an IP address */
if (inet_aton (host, &addr)) {
/* check if its a multicast address */
if ((ntohl (addr.s_addr) & 0xf0000000) == 0xe0000000) {
GST_DEBUG_OBJECT (sink, "multicast address detected");
client->multi_addr.imr_multiaddr.s_addr = addr.s_addr;
client->multi_addr.imr_interface.s_addr = INADDR_ANY;
client->theiraddr.sin_addr = client->multi_addr.imr_multiaddr;
} else {
GST_DEBUG_OBJECT (sink, "normal address detected");
client->theiraddr.sin_addr = *((struct in_addr *) &addr);
}
/* if init_send has already been called, set sockopts for multicast */
if (*client->sock > 0 && client->multi_addr.imr_multiaddr.s_addr)
join_multicast (client);
}
/* we dont need to lookup for localhost */
else if (strcmp (host, "localhost") == 0 && inet_aton ("127.0.0.1", &addr)) {
client->theiraddr.sin_addr = *((struct in_addr *) &addr);
}
/* if its a hostname */
else if ((he = gethostbyname (host))) {
client->theiraddr.sin_addr = *((struct in_addr *) he->h_addr);
} else {
goto host_error;
}
g_mutex_lock (sink->client_lock);
sink->clients = g_list_prepend (sink->clients, client);
g_mutex_unlock (sink->client_lock);
g_signal_emit (G_OBJECT (sink),
gst_multiudpsink_signals[SIGNAL_CLIENT_ADDED], 0, host, port);
return;
/* ERRORS */
host_error:
{
GST_WARNING_OBJECT (sink, "hostname lookup error?");
g_free (client->host);
g_free (client);
return;
}
}
static gint
client_compare (GstUDPClient * a, GstUDPClient * b)
{
if ((a->port == b->port) && (strcmp (a->host, b->host) == 0))
return 0;
return 1;
}
static void
free_client (GstUDPClient * client)
{
g_free (client->host);
g_free (client);
}
void
gst_multiudpsink_remove (GstMultiUDPSink * sink, const gchar * host, gint port)
{
GList *find;
GstUDPClient udpclient;
GstUDPClient *client;
GTimeVal now;
udpclient.host = (gchar *) host;
udpclient.port = port;
g_mutex_lock (sink->client_lock);
find = g_list_find_custom (sink->clients, &udpclient,
(GCompareFunc) client_compare);
if (!find)
goto not_found;
GST_DEBUG_OBJECT (sink, "remove client with host %s, port %d", host, port);
client = (GstUDPClient *) find->data;
g_get_current_time (&now);
client->disconnect_time = GST_TIMEVAL_TO_TIME (now);
/* Unlock to emit signal before we delete the actual client */
g_mutex_unlock (sink->client_lock);
g_signal_emit (G_OBJECT (sink),
gst_multiudpsink_signals[SIGNAL_CLIENT_REMOVED], 0, host, port);
g_mutex_lock (sink->client_lock);
sink->clients = g_list_delete_link (sink->clients, find);
free_client (client);
g_mutex_unlock (sink->client_lock);
return;
/* ERRORS */
not_found:
{
g_mutex_unlock (sink->client_lock);
GST_WARNING_OBJECT (sink, "client at host %s, port %d not found",
host, port);
return;
}
}
void
gst_multiudpsink_clear (GstMultiUDPSink * sink)
{
GST_DEBUG_OBJECT (sink, "clearing");
/* we only need to remove the client structure, there is no additional
* socket or anything to free for UDP */
g_mutex_lock (sink->client_lock);
g_list_foreach (sink->clients, (GFunc) free_client, sink);
g_list_free (sink->clients);
sink->clients = NULL;
g_mutex_unlock (sink->client_lock);
}
GValueArray *
gst_multiudpsink_get_stats (GstMultiUDPSink * sink, const gchar * host,
gint port)
{
GstUDPClient *client;
GValueArray *result = NULL;
GstUDPClient udpclient;
GList *find;
GValue value = { 0 };
udpclient.host = (gchar *) host;
udpclient.port = port;
g_mutex_lock (sink->client_lock);
find = g_list_find_custom (sink->clients, &udpclient,
(GCompareFunc) client_compare);
if (!find)
goto not_found;
GST_DEBUG_OBJECT (sink, "stats for client with host %s, port %d", host, port);
client = (GstUDPClient *) find->data;
/* Result is a value array of (bytes_sent, packets_sent,
* connect_time, disconnect_time), all as uint64 */
result = g_value_array_new (4);
g_value_init (&value, G_TYPE_UINT64);
g_value_set_uint64 (&value, client->bytes_sent);
result = g_value_array_append (result, &value);
g_value_unset (&value);
g_value_init (&value, G_TYPE_UINT64);
g_value_set_uint64 (&value, client->packets_sent);
result = g_value_array_append (result, &value);
g_value_unset (&value);
g_value_init (&value, G_TYPE_UINT64);
g_value_set_uint64 (&value, client->connect_time);
result = g_value_array_append (result, &value);
g_value_unset (&value);
g_value_init (&value, G_TYPE_UINT64);
g_value_set_uint64 (&value, client->disconnect_time);
result = g_value_array_append (result, &value);
g_value_unset (&value);
g_mutex_unlock (sink->client_lock);
return result;
/* ERRORS */
not_found:
{
g_mutex_unlock (sink->client_lock);
GST_WARNING_OBJECT (sink, "client with host %s, port %d not found",
host, port);
/* Apparently (see comment in gstmultifdsink.c) returning NULL from here may
* confuse/break python bindings */
return g_value_array_new (0);
}
}
static GstStateChangeReturn
gst_multiudpsink_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstMultiUDPSink *sink;
sink = GST_MULTIUDPSINK (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (!gst_multiudpsink_init_send (sink))
goto no_init;
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_multiudpsink_close (sink);
break;
default:
break;
}
return ret;
/* ERRORS */
no_init:
{
/* _init_send() posted specific error already */
return GST_STATE_CHANGE_FAILURE;
}
}