gstreamer/gst/udp/gstdynudpsink.c

580 lines
17 KiB
C

/* GStreamer
* Copyright (C) <2005> Philippe Khalaf <burger@speedy.org>
* Copyright (C) <2005> Nokia Corporation <kai.vehmanen@nokia.com>
* Copyright (C) <2006> Joni Valtanen <joni.valtanen@movial.fi>
* Copyright (C) <2012> Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstdynudpsink.h"
#include <gst/net/gstnetaddressmeta.h>
GST_DEBUG_CATEGORY_STATIC (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);
/* DynUDPSink signals and args */
enum
{
/* methods */
SIGNAL_GET_STATS,
/* signals */
/* FILL ME */
LAST_SIGNAL
};
#define UDP_DEFAULT_SOCKET NULL
#define UDP_DEFAULT_CLOSE_SOCKET TRUE
#define UDP_DEFAULT_BIND_ADDRESS NULL
#define UDP_DEFAULT_BIND_PORT 0
enum
{
PROP_0,
PROP_SOCKET,
PROP_SOCKET_V6,
PROP_CLOSE_SOCKET,
PROP_BIND_ADDRESS,
PROP_BIND_PORT
};
static void gst_dynudpsink_finalize (GObject * object);
static GstFlowReturn gst_dynudpsink_render (GstBaseSink * sink,
GstBuffer * buffer);
static gboolean gst_dynudpsink_stop (GstBaseSink * bsink);
static gboolean gst_dynudpsink_start (GstBaseSink * bsink);
static gboolean gst_dynudpsink_unlock (GstBaseSink * bsink);
static gboolean gst_dynudpsink_unlock_stop (GstBaseSink * bsink);
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 GstStructure *gst_dynudpsink_get_stats (GstDynUDPSink * sink,
const gchar * host, gint port);
static guint gst_dynudpsink_signals[LAST_SIGNAL] = { 0 };
#define gst_dynudpsink_parent_class parent_class
G_DEFINE_TYPE (GstDynUDPSink, gst_dynudpsink, GST_TYPE_BASE_SINK);
static void
gst_dynudpsink_class_init (GstDynUDPSinkClass * 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_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_SIGNAL_ACTION,
G_STRUCT_OFFSET (GstDynUDPSinkClass, get_stats),
NULL, NULL, g_cclosure_marshal_generic, GST_TYPE_STRUCTURE, 2,
G_TYPE_STRING, G_TYPE_INT);
g_object_class_install_property (gobject_class, PROP_SOCKET,
g_param_spec_object ("socket", "Socket",
"Socket to use for UDP sending. (NULL == allocate)",
G_TYPE_SOCKET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SOCKET_V6,
g_param_spec_object ("socket-v6", "Socket IPv6",
"Socket to use for UDPv6 sending. (NULL == allocate)",
G_TYPE_SOCKET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_CLOSE_SOCKET,
g_param_spec_boolean ("close-socket", "Close socket",
"Close socket if passed as property on state change",
UDP_DEFAULT_CLOSE_SOCKET,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_BIND_ADDRESS,
g_param_spec_string ("bind-address", "Bind Address",
"Address to bind the socket to", UDP_DEFAULT_BIND_ADDRESS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_BIND_PORT,
g_param_spec_int ("bind-port", "Bind Port",
"Port to bind the socket to", 0, G_MAXUINT16,
UDP_DEFAULT_BIND_PORT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_set_static_metadata (gstelement_class, "UDP packet sender",
"Sink/Network",
"Send data over the network via UDP with packet destinations picked up "
"dynamically from meta on the buffers passed",
"Philippe Khalaf <burger@speedy.org>");
gstbasesink_class->render = gst_dynudpsink_render;
gstbasesink_class->start = gst_dynudpsink_start;
gstbasesink_class->stop = gst_dynudpsink_stop;
gstbasesink_class->unlock = gst_dynudpsink_unlock;
gstbasesink_class->unlock_stop = gst_dynudpsink_unlock_stop;
klass->get_stats = gst_dynudpsink_get_stats;
GST_DEBUG_CATEGORY_INIT (dynudpsink_debug, "dynudpsink", 0, "UDP sink");
}
static void
gst_dynudpsink_init (GstDynUDPSink * sink)
{
sink->socket = UDP_DEFAULT_SOCKET;
sink->socket_v6 = UDP_DEFAULT_SOCKET;
sink->close_socket = UDP_DEFAULT_CLOSE_SOCKET;
sink->external_socket = FALSE;
sink->bind_address = UDP_DEFAULT_BIND_ADDRESS;
sink->bind_port = UDP_DEFAULT_BIND_PORT;
sink->used_socket = NULL;
sink->used_socket_v6 = NULL;
sink->cancellable = g_cancellable_new ();
}
static void
gst_dynudpsink_finalize (GObject * object)
{
GstDynUDPSink *sink;
sink = GST_DYNUDPSINK (object);
if (sink->cancellable)
g_object_unref (sink->cancellable);
sink->cancellable = NULL;
if (sink->socket)
g_object_unref (sink->socket);
sink->socket = NULL;
if (sink->socket_v6)
g_object_unref (sink->socket_v6);
sink->socket_v6 = NULL;
if (sink->used_socket)
g_object_unref (sink->used_socket);
sink->used_socket = NULL;
if (sink->used_socket_v6)
g_object_unref (sink->used_socket_v6);
sink->used_socket_v6 = NULL;
g_free (sink->bind_address);
sink->bind_address = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstFlowReturn
gst_dynudpsink_render (GstBaseSink * bsink, GstBuffer * buffer)
{
GstDynUDPSink *sink;
gssize ret;
GstMapInfo map;
GstNetAddressMeta *meta;
GSocketAddress *addr;
GError *err = NULL;
GSocketFamily family;
GSocket *socket;
meta = gst_buffer_get_net_address_meta (buffer);
if (meta == NULL) {
GST_DEBUG ("Received buffer without GstNetAddressMeta, skipping");
return GST_FLOW_OK;
}
sink = GST_DYNUDPSINK (bsink);
/* let's get the address from the metadata */
addr = meta->addr;
family = g_socket_address_get_family (addr);
if (family == G_SOCKET_FAMILY_IPV6 && !sink->used_socket_v6)
goto invalid_family;
gst_buffer_map (buffer, &map, GST_MAP_READ);
GST_DEBUG ("about to send %" G_GSIZE_FORMAT " bytes", map.size);
#ifndef GST_DISABLE_GST_DEBUG
{
gchar *host;
host =
g_inet_address_to_string (g_inet_socket_address_get_address
(G_INET_SOCKET_ADDRESS (addr)));
GST_DEBUG ("sending %" G_GSIZE_FORMAT " bytes to client %s port %d",
map.size, host,
g_inet_socket_address_get_port (G_INET_SOCKET_ADDRESS (addr)));
g_free (host);
}
#endif
/* Select socket to send from for this address */
if (family == G_SOCKET_FAMILY_IPV6 || !sink->used_socket)
socket = sink->used_socket_v6;
else
socket = sink->used_socket;
ret =
g_socket_send_to (socket, addr, (gchar *) map.data, map.size,
sink->cancellable, &err);
gst_buffer_unmap (buffer, &map);
if (ret < 0)
goto send_error;
GST_DEBUG ("sent %" G_GSSIZE_FORMAT " bytes", ret);
return GST_FLOW_OK;
send_error:
{
GstFlowReturn flow_ret;
if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
GST_DEBUG_OBJECT (sink, "send cancelled");
flow_ret = GST_FLOW_FLUSHING;
} else {
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
("send error: %s", err->message));
flow_ret = GST_FLOW_ERROR;
}
g_clear_error (&err);
return flow_ret;
}
invalid_family:
{
GST_DEBUG ("invalid address family (got %d)", family);
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) {
case PROP_SOCKET:
if (udpsink->socket != NULL && udpsink->socket != udpsink->used_socket &&
udpsink->close_socket) {
GError *err = NULL;
if (!g_socket_close (udpsink->socket, &err)) {
GST_ERROR ("failed to close socket %p: %s", udpsink->socket,
err->message);
g_clear_error (&err);
}
}
if (udpsink->socket)
g_object_unref (udpsink->socket);
udpsink->socket = g_value_dup_object (value);
GST_DEBUG ("setting socket to %p", udpsink->socket);
break;
case PROP_SOCKET_V6:
if (udpsink->socket_v6 != NULL
&& udpsink->socket_v6 != udpsink->used_socket_v6
&& udpsink->close_socket) {
GError *err = NULL;
if (!g_socket_close (udpsink->socket_v6, &err)) {
GST_ERROR ("failed to close socket %p: %s", udpsink->socket_v6,
err->message);
g_clear_error (&err);
}
}
if (udpsink->socket_v6)
g_object_unref (udpsink->socket_v6);
udpsink->socket_v6 = g_value_dup_object (value);
GST_DEBUG ("setting socket v6 to %p", udpsink->socket_v6);
break;
case PROP_CLOSE_SOCKET:
udpsink->close_socket = g_value_get_boolean (value);
break;
case PROP_BIND_ADDRESS:
g_free (udpsink->bind_address);
udpsink->bind_address = g_value_dup_string (value);
break;
case PROP_BIND_PORT:
udpsink->bind_port = g_value_get_int (value);
break;
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) {
case PROP_SOCKET:
g_value_set_object (value, udpsink->socket);
break;
case PROP_SOCKET_V6:
g_value_set_object (value, udpsink->socket_v6);
break;
case PROP_CLOSE_SOCKET:
g_value_set_boolean (value, udpsink->close_socket);
break;
case PROP_BIND_ADDRESS:
g_value_set_string (value, udpsink->bind_address);
break;
case PROP_BIND_PORT:
g_value_set_int (value, udpsink->bind_port);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* create a socket for sending to remote machine */
static gboolean
gst_dynudpsink_start (GstBaseSink * bsink)
{
GstDynUDPSink *udpsink;
GError *err = NULL;
udpsink = GST_DYNUDPSINK (bsink);
udpsink->external_socket = FALSE;
if (udpsink->socket) {
if (g_socket_get_family (udpsink->socket) == G_SOCKET_FAMILY_IPV6) {
udpsink->used_socket_v6 = G_SOCKET (g_object_ref (udpsink->socket));
udpsink->external_socket = TRUE;
} else {
udpsink->used_socket = G_SOCKET (g_object_ref (udpsink->socket));
udpsink->external_socket = TRUE;
}
}
if (udpsink->socket_v6) {
g_return_val_if_fail (g_socket_get_family (udpsink->socket) !=
G_SOCKET_FAMILY_IPV6, FALSE);
if (udpsink->used_socket_v6
&& udpsink->used_socket_v6 != udpsink->socket_v6) {
GST_ERROR_OBJECT (udpsink,
"Provided different IPv6 sockets in socket and socket-v6 properties");
return FALSE;
}
udpsink->used_socket_v6 = G_SOCKET (g_object_ref (udpsink->socket_v6));
udpsink->external_socket = TRUE;
}
if (!udpsink->used_socket && !udpsink->used_socket_v6) {
GSocketAddress *bind_addr;
GInetAddress *bind_iaddr;
if (udpsink->bind_address) {
GSocketFamily family;
bind_iaddr = g_inet_address_new_from_string (udpsink->bind_address);
if (!bind_iaddr) {
GList *results;
GResolver *resolver;
resolver = g_resolver_get_default ();
results =
g_resolver_lookup_by_name (resolver, udpsink->bind_address,
udpsink->cancellable, &err);
if (!results) {
g_object_unref (resolver);
goto name_resolve;
}
bind_iaddr = G_INET_ADDRESS (g_object_ref (results->data));
g_resolver_free_addresses (results);
g_object_unref (resolver);
}
bind_addr = g_inet_socket_address_new (bind_iaddr, udpsink->bind_port);
g_object_unref (bind_iaddr);
family = g_socket_address_get_family (G_SOCKET_ADDRESS (bind_addr));
if ((udpsink->used_socket =
g_socket_new (family, G_SOCKET_TYPE_DATAGRAM,
G_SOCKET_PROTOCOL_UDP, &err)) == NULL) {
g_object_unref (bind_addr);
goto no_socket;
}
g_socket_bind (udpsink->used_socket, bind_addr, TRUE, &err);
if (err != NULL)
goto bind_error;
} else {
/* create sender sockets if none available */
if ((udpsink->used_socket = g_socket_new (G_SOCKET_FAMILY_IPV4,
G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err)) == NULL)
goto no_socket;
bind_iaddr = g_inet_address_new_any (G_SOCKET_FAMILY_IPV4);
bind_addr = g_inet_socket_address_new (bind_iaddr, 0);
g_socket_bind (udpsink->used_socket, bind_addr, TRUE, &err);
g_object_unref (bind_addr);
g_object_unref (bind_iaddr);
if (err != NULL)
goto bind_error;
if ((udpsink->used_socket_v6 = g_socket_new (G_SOCKET_FAMILY_IPV6,
G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP,
&err)) == NULL) {
GST_INFO_OBJECT (udpsink, "Failed to create IPv6 socket: %s",
err->message);
g_clear_error (&err);
} else {
bind_iaddr = g_inet_address_new_any (G_SOCKET_FAMILY_IPV6);
bind_addr = g_inet_socket_address_new (bind_iaddr, 0);
g_socket_bind (udpsink->used_socket_v6, bind_addr, TRUE, &err);
g_object_unref (bind_addr);
g_object_unref (bind_iaddr);
if (err != NULL)
goto bind_error;
}
}
}
if (udpsink->used_socket)
g_socket_set_broadcast (udpsink->used_socket, TRUE);
if (udpsink->used_socket_v6)
g_socket_set_broadcast (udpsink->used_socket_v6, TRUE);
return TRUE;
/* ERRORS */
no_socket:
{
GST_ERROR_OBJECT (udpsink, "Failed to create IPv4 socket: %s",
err->message);
g_clear_error (&err);
return FALSE;
}
bind_error:
{
GST_ELEMENT_ERROR (udpsink, RESOURCE, FAILED, (NULL),
("Failed to bind socket: %s", err->message));
g_clear_error (&err);
return FALSE;
}
name_resolve:
{
GST_ELEMENT_ERROR (udpsink, RESOURCE, FAILED, (NULL),
("Failed to resolve bind address %s: %s", udpsink->bind_address,
err->message));
g_clear_error (&err);
return FALSE;
}
}
static GstStructure *
gst_dynudpsink_get_stats (GstDynUDPSink * sink, const gchar * host, gint port)
{
return NULL;
}
static gboolean
gst_dynudpsink_stop (GstBaseSink * bsink)
{
GstDynUDPSink *udpsink;
udpsink = GST_DYNUDPSINK (bsink);
if (udpsink->used_socket) {
if (udpsink->close_socket || !udpsink->external_socket) {
GError *err = NULL;
if (!g_socket_close (udpsink->used_socket, &err)) {
GST_ERROR_OBJECT (udpsink, "Failed to close socket: %s", err->message);
g_clear_error (&err);
}
}
g_object_unref (udpsink->used_socket);
udpsink->used_socket = NULL;
}
if (udpsink->used_socket_v6) {
if (udpsink->close_socket || !udpsink->external_socket) {
GError *err = NULL;
if (!g_socket_close (udpsink->used_socket_v6, &err)) {
GST_ERROR_OBJECT (udpsink, "Failed to close socket: %s", err->message);
g_clear_error (&err);
}
}
g_object_unref (udpsink->used_socket_v6);
udpsink->used_socket_v6 = NULL;
}
return TRUE;
}
static gboolean
gst_dynudpsink_unlock (GstBaseSink * bsink)
{
GstDynUDPSink *udpsink;
udpsink = GST_DYNUDPSINK (bsink);
g_cancellable_cancel (udpsink->cancellable);
return TRUE;
}
static gboolean
gst_dynudpsink_unlock_stop (GstBaseSink * bsink)
{
GstDynUDPSink *udpsink;
udpsink = GST_DYNUDPSINK (bsink);
g_cancellable_reset (udpsink->cancellable);
return TRUE;
}