static const gchar *
gst_udpsrc_uri_get_uri (GstURIHandler * handler)
{
GstUDPSrc *src = GST_UDPSRC (handler);
return g_strdup (src->uri);
}
static void
gst_udpsrc_finalize (GObject * object)
{
GstUDPSrc *udpsrc;
udpsrc = GST_UDPSRC (object);
if (udpsrc->caps)
gst_caps_unref (udpsrc->caps);
udpsrc->caps = NULL;
g_free (udpsrc->multi_iface);
udpsrc->multi_iface = NULL;
g_free (udpsrc->uri);
udpsrc->uri = NULL;
g_free (udpsrc->host);
udpsrc->host = NULL;
if (udpsrc->socket)
g_object_unref (udpsrc->socket);
udpsrc->socket = NULL;
if (udpsrc->used_socket)
g_object_unref (udpsrc->used_socket);
udpsrc->used_socket = NULL;
if (udpsrc->cancellable)
g_object_unref (udpsrc->cancellable);
udpsrc->cancellable = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstCaps *
gst_udpsrc_getcaps (GstBaseSrc * src, GstCaps * filter)
{
GstUDPSrc *udpsrc;
GstCaps *caps, *result;
udpsrc = GST_UDPSRC (src);
GST_OBJECT_LOCK (src);
if ((caps = udpsrc->caps))
gst_caps_ref (caps);
GST_OBJECT_UNLOCK (src);
if (caps) {
if (filter) {
result = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
} else {
result = caps;
}
} else {
result = (filter) ? gst_caps_ref (filter) : gst_caps_new_any ();
}
return result;
}
static void
gst_udpsrc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstUDPSrc *udpsrc = GST_UDPSRC (object);
switch (prop_id) {
case PROP_BUFFER_SIZE:
g_value_set_int (value, udpsrc->buffer_size);
break;
case PROP_PORT:
g_value_set_int (value, udpsrc->port);
break;
case PROP_MULTICAST_GROUP:
case PROP_ADDRESS:
g_value_set_string (value, udpsrc->address);
break;
case PROP_MULTICAST_IFACE:
g_value_set_string (value, udpsrc->multi_iface);
break;
case PROP_URI:
g_value_set_string (value, udpsrc->uri);
break;
case PROP_CAPS:
GST_OBJECT_LOCK (udpsrc);
gst_value_set_caps (value, udpsrc->caps);
GST_OBJECT_UNLOCK (udpsrc);
break;
case PROP_SOCKET:
g_value_set_object (value, udpsrc->socket);
break;
case PROP_TIMEOUT:
g_value_set_uint64 (value, udpsrc->timeout);
break;
case PROP_SKIP_FIRST_BYTES:
g_value_set_int (value, udpsrc->skip_first_bytes);
break;
case PROP_CLOSE_SOCKET:
g_value_set_boolean (value, udpsrc->close_socket);
break;
case PROP_USED_SOCKET:
g_value_set_object (value, udpsrc->used_socket);
break;
case PROP_AUTO_MULTICAST:
g_value_set_boolean (value, udpsrc->auto_multicast);
break;
case PROP_REUSE:
g_value_set_boolean (value, udpsrc->reuse);
break;
case PROP_LOOP:
g_value_set_boolean (value, udpsrc->loop);
break;
case PROP_RETRIEVE_SENDER_ADDRESS:
g_value_set_boolean (value, udpsrc->retrieve_sender_address);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_udpsrc_unlock_stop (GstBaseSrc * bsrc)
{
GstUDPSrc *src;
src = GST_UDPSRC (bsrc);
GST_LOG_OBJECT (src, "No longer flushing");
g_cancellable_reset (src->cancellable);
return TRUE;
}
static gboolean
gst_udpsrc_unlock (GstBaseSrc * bsrc)
{
GstUDPSrc *src;
src = GST_UDPSRC (bsrc);
GST_LOG_OBJECT (src, "Flushing");
g_cancellable_cancel (src->cancellable);
return TRUE;
}
static GstCaps *
gst_udpsrc_getcaps (GstBaseSrc * src)
{
GstUDPSrc *udpsrc;
udpsrc = GST_UDPSRC (src);
if (udpsrc->caps) {
return gst_caps_ref (udpsrc->caps);
} else {
return gst_caps_new_any ();
}
}
static gboolean
gst_udpsrc_stop (GstBaseSrc * bsrc)
{
GstUDPSrc *src;
src = GST_UDPSRC (bsrc);
GST_DEBUG ("stopping, closing sockets");
if (src->used_socket) {
if (src->auto_multicast
&&
g_inet_address_get_is_multicast (g_inet_socket_address_get_address
(src->addr))) {
GError *err = NULL;
GST_DEBUG_OBJECT (src, "leaving multicast group %s", src->host);
if (!g_socket_leave_multicast_group (src->used_socket,
g_inet_socket_address_get_address (src->addr), FALSE,
src->multi_iface, &err)) {
GST_ERROR_OBJECT (src, "Failed to leave multicast group: %s",
err->message);
g_clear_error (&err);
}
}
if (src->close_socket || !src->external_socket) {
GError *err = NULL;
if (!g_socket_close (src->used_socket, &err)) {
GST_ERROR_OBJECT (src, "Failed to close socket: %s", err->message);
g_clear_error (&err);
}
}
g_object_unref (src->used_socket);
src->used_socket = NULL;
g_object_unref (src->addr);
src->addr = NULL;
}
return TRUE;
}
static GstStateChangeReturn
gst_udpsrc_change_state (GstElement * element, GstStateChange transition)
{
GstUDPSrc *src;
GstStateChangeReturn result;
src = GST_UDPSRC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!gst_udpsrc_open (src))
goto open_failed;
break;
default:
break;
}
if ((result =
GST_ELEMENT_CLASS (parent_class)->change_state (element,
transition)) == GST_STATE_CHANGE_FAILURE)
goto failure;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
gst_udpsrc_close (src);
break;
default:
break;
}
return result;
/* ERRORS */
open_failed:
{
GST_DEBUG_OBJECT (src, "failed to open socket");
return GST_STATE_CHANGE_FAILURE;
}
failure:
{
GST_DEBUG_OBJECT (src, "parent failed state change");
return result;
}
}
/* create a socket for sending to remote machine */
static gboolean
gst_udpsrc_start (GstBaseSrc * bsrc)
{
GstUDPSrc *src;
GInetAddress *addr, *bind_addr;
GSocketAddress *bind_saddr;
GResolver *resolver;
GError *err = NULL;
src = GST_UDPSRC (bsrc);
if (src->socket == NULL) {
/* need to allocate a socket */
GST_DEBUG_OBJECT (src, "allocating socket for %s:%d", src->host, src->port);
addr = g_inet_address_new_from_string (src->host);
if (!addr) {
GList *results;
GST_DEBUG_OBJECT (src, "resolving IP address for host %s", src->host);
resolver = g_resolver_get_default ();
results =
g_resolver_lookup_by_name (resolver, src->host, src->cancellable,
&err);
if (!results)
goto name_resolve;
addr = G_INET_ADDRESS (g_object_ref (results->data));
g_resolver_free_addresses (results);
g_object_unref (resolver);
}
#ifndef GST_DISABLE_GST_DEBUG
{
gchar *ip = g_inet_address_to_string (addr);
GST_DEBUG_OBJECT (src, "IP address for host %s is %s", src->host, ip);
g_free (ip);
}
#endif
if ((src->used_socket =
g_socket_new (g_inet_address_get_family (addr),
G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err)) == NULL)
goto no_socket;
src->external_socket = FALSE;
GST_DEBUG_OBJECT (src, "got socket %p", src->used_socket);
if (src->addr)
g_object_unref (src->addr);
src->addr =
G_INET_SOCKET_ADDRESS (g_inet_socket_address_new (addr, src->port));
GST_DEBUG_OBJECT (src, "binding on port %d", src->port);
if (g_inet_address_get_is_multicast (addr))
bind_addr = g_inet_address_new_any (g_inet_address_get_family (addr));
else
bind_addr = G_INET_ADDRESS (g_object_ref (addr));
g_object_unref (addr);
bind_saddr = g_inet_socket_address_new (bind_addr, src->port);
g_object_unref (bind_addr);
if (!g_socket_bind (src->used_socket, bind_saddr, src->reuse, &err))
goto bind_error;
g_object_unref (bind_saddr);
} else {
GST_DEBUG_OBJECT (src, "using provided socket %p", src->socket);
/* we use the configured socket, try to get some info about it */
src->used_socket = G_SOCKET (g_object_ref (src->socket));
src->external_socket = TRUE;
if (src->addr)
g_object_unref (src->addr);
src->addr =
G_INET_SOCKET_ADDRESS (g_socket_get_local_address (src->used_socket,
&err));
if (!src->addr)
goto getsockname_error;
}
#if GLIB_CHECK_VERSION (2, 35, 7)
{
gint val = 0;
if (src->buffer_size != 0) {
GError *opt_err = NULL;
GST_INFO_OBJECT (src, "setting udp buffer of %d bytes", src->buffer_size);
/* set buffer size, Note that on Linux this is typically limited to a
* maximum of around 100K. Also a minimum of 128 bytes is required on
* Linux. */
if (!g_socket_set_option (src->used_socket, SOL_SOCKET, SO_RCVBUF,
src->buffer_size, &opt_err)) {
GST_ELEMENT_WARNING (src, RESOURCE, SETTINGS, (NULL),
("Could not create a buffer of requested %d bytes: %s",
src->buffer_size, opt_err->message));
g_error_free (opt_err);
opt_err = NULL;
}
}
/* read the value of the receive buffer. Note that on linux this returns
* 2x the value we set because the kernel allocates extra memory for
* metadata. The default on Linux is about 100K (which is about 50K
* without metadata) */
if (g_socket_get_option (src->used_socket, SOL_SOCKET, SO_RCVBUF, &val,
NULL)) {
GST_INFO_OBJECT (src, "have udp buffer of %d bytes", val);
} else {
GST_DEBUG_OBJECT (src, "could not get udp buffer size");
}
}
#elif defined (SO_RCVBUF)
{
gint rcvsize, ret;
socklen_t len;
len = sizeof (rcvsize);
if (src->buffer_size != 0) {
rcvsize = src->buffer_size;
GST_DEBUG_OBJECT (src, "setting udp buffer of %d bytes", rcvsize);
/* set buffer size, Note that on Linux this is typically limited to a
* maximum of around 100K. Also a minimum of 128 bytes is required on
* Linux. */
ret =
setsockopt (g_socket_get_fd (src->used_socket), SOL_SOCKET, SO_RCVBUF,
(void *) &rcvsize, len);
if (ret != 0) {
GST_ELEMENT_WARNING (src, RESOURCE, SETTINGS, (NULL),
("Could not create a buffer of requested %d bytes, %d: %s (%d)",
rcvsize, ret, g_strerror (errno), errno));
}
}
/* read the value of the receive buffer. Note that on linux this returns 2x the
* value we set because the kernel allocates extra memory for metadata.
* The default on Linux is about 100K (which is about 50K without metadata) */
ret =
getsockopt (g_socket_get_fd (src->used_socket), SOL_SOCKET, SO_RCVBUF,
(void *) &rcvsize, &len);
if (ret == 0)
GST_DEBUG_OBJECT (src, "have udp buffer of %d bytes", rcvsize);
else
GST_DEBUG_OBJECT (src, "could not get udp buffer size");
}
#else
if (src->buffer_size != 0) {
GST_WARNING_OBJECT (src, "don't know how to set udp buffer size on this "
"OS. Consider upgrading your GLib to >= 2.35.7 and re-compiling the "
"GStreamer udp plugin");
}
#endif
g_socket_set_broadcast (src->used_socket, TRUE);
if (src->auto_multicast
&&
g_inet_address_get_is_multicast (g_inet_socket_address_get_address
(src->addr))) {
GST_DEBUG_OBJECT (src, "joining multicast group %s", src->host);
if (!g_socket_join_multicast_group (src->used_socket,
g_inet_socket_address_get_address (src->addr),
FALSE, src->multi_iface, &err))
goto membership;
}
/* NOTE: sockaddr_in.sin_port works for ipv4 and ipv6 because sin_port
* follows ss_family on both */
{
GInetSocketAddress *addr;
guint16 port;
addr =
G_INET_SOCKET_ADDRESS (g_socket_get_local_address (src->used_socket,
&err));
if (!addr)
goto getsockname_error;
port = g_inet_socket_address_get_port (addr);
GST_DEBUG_OBJECT (src, "bound, on port %d", port);
if (port != src->port) {
src->port = port;
GST_DEBUG_OBJECT (src, "notifying port %d", port);
g_object_notify (G_OBJECT (src), "port");
}
g_object_unref (addr);
}
return TRUE;
/* ERRORS */
name_resolve:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
("Name resolval failed: %s", err->message));
g_clear_error (&err);
g_object_unref (resolver);
return FALSE;
}
no_socket:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("no socket error: %s", err->message));
g_clear_error (&err);
g_object_unref (addr);
return FALSE;
}
bind_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
("bind failed: %s", err->message));
g_clear_error (&err);
g_object_unref (bind_saddr);
gst_udpsrc_stop (GST_BASE_SRC (src));
return FALSE;
}
membership:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
("could add membership: %s", err->message));
g_clear_error (&err);
gst_udpsrc_stop (GST_BASE_SRC (src));
return FALSE;
}
getsockname_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
("getsockname failed: %s", err->message));
g_clear_error (&err);
gst_udpsrc_stop (GST_BASE_SRC (src));
return FALSE;
}
}
static void
gst_udpsrc_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstUDPSrc *udpsrc = GST_UDPSRC (object);
switch (prop_id) {
case PROP_BUFFER_SIZE:
udpsrc->buffer_size = g_value_get_int (value);
break;
case PROP_PORT:
udpsrc->port = g_value_get_int (value);
g_free (udpsrc->uri);
udpsrc->uri = g_strdup_printf ("udp://%s:%u", udpsrc->host, udpsrc->port);
break;
case PROP_MULTICAST_GROUP:
{
const gchar *group;
g_free (udpsrc->host);
if ((group = g_value_get_string (value)))
udpsrc->host = g_strdup (group);
else
udpsrc->host = g_strdup (UDP_DEFAULT_MULTICAST_GROUP);
g_free (udpsrc->uri);
udpsrc->uri = g_strdup_printf ("udp://%s:%u", udpsrc->host, udpsrc->port);
break;
}
case PROP_MULTICAST_IFACE:
g_free (udpsrc->multi_iface);
if (g_value_get_string (value) == NULL)
udpsrc->multi_iface = g_strdup (UDP_DEFAULT_MULTICAST_IFACE);
else
udpsrc->multi_iface = g_value_dup_string (value);
break;
case PROP_URI:
gst_udpsrc_set_uri (udpsrc, g_value_get_string (value));
break;
case PROP_CAPS:
{
const GstCaps *new_caps_val = gst_value_get_caps (value);
GstCaps *new_caps;
GstCaps *old_caps;
if (new_caps_val == NULL) {
new_caps = gst_caps_new_any ();
} else {
new_caps = gst_caps_copy (new_caps_val);
}
old_caps = udpsrc->caps;
udpsrc->caps = new_caps;
if (old_caps)
gst_caps_unref (old_caps);
gst_pad_set_caps (GST_BASE_SRC (udpsrc)->srcpad, new_caps);
break;
}
case PROP_SOCKET:
if (udpsrc->socket != NULL && udpsrc->socket != udpsrc->used_socket &&
udpsrc->close_socket) {
GError *err = NULL;
if (!g_socket_close (udpsrc->socket, &err)) {
GST_ERROR ("failed to close socket %p: %s", udpsrc->socket,
err->message);
g_clear_error (&err);
}
}
if (udpsrc->socket)
g_object_unref (udpsrc->socket);
udpsrc->socket = g_value_dup_object (value);
GST_DEBUG ("setting socket to %p", udpsrc->socket);
break;
case PROP_TIMEOUT:
udpsrc->timeout = g_value_get_uint64 (value);
break;
case PROP_SKIP_FIRST_BYTES:
udpsrc->skip_first_bytes = g_value_get_int (value);
break;
case PROP_CLOSE_SOCKET:
udpsrc->close_socket = g_value_get_boolean (value);
break;
case PROP_AUTO_MULTICAST:
udpsrc->auto_multicast = g_value_get_boolean (value);
break;
case PROP_REUSE:
udpsrc->reuse = g_value_get_boolean (value);
break;
default:
break;
}
}
static gboolean
gst_udpsrc_uri_set_uri (GstURIHandler * handler, const gchar * uri)
{
return gst_udpsrc_set_uri (GST_UDPSRC (handler), uri);
}
