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580 lines
17 KiB
C
580 lines
17 KiB
C
/* GStreamer
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* Copyright (C) <2005> Philippe Khalaf <burger@speedy.org>
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* Copyright (C) <2005> Nokia Corporation <kai.vehmanen@nokia.com>
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* Copyright (C) <2006> Joni Valtanen <joni.valtanen@movial.fi>
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* Copyright (C) <2012> Collabora Ltd.
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* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstdynudpsink.h"
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#include <gst/net/gstnetaddressmeta.h>
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GST_DEBUG_CATEGORY_STATIC (dynudpsink_debug);
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#define GST_CAT_DEFAULT (dynudpsink_debug)
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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/* DynUDPSink signals and args */
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enum
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{
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/* methods */
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SIGNAL_GET_STATS,
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/* signals */
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/* FILL ME */
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LAST_SIGNAL
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};
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#define UDP_DEFAULT_SOCKET NULL
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#define UDP_DEFAULT_CLOSE_SOCKET TRUE
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#define UDP_DEFAULT_BIND_ADDRESS NULL
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#define UDP_DEFAULT_BIND_PORT 0
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enum
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{
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PROP_0,
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PROP_SOCKET,
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PROP_SOCKET_V6,
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PROP_CLOSE_SOCKET,
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PROP_BIND_ADDRESS,
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PROP_BIND_PORT
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};
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static void gst_dynudpsink_finalize (GObject * object);
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static GstFlowReturn gst_dynudpsink_render (GstBaseSink * sink,
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GstBuffer * buffer);
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static gboolean gst_dynudpsink_stop (GstBaseSink * bsink);
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static gboolean gst_dynudpsink_start (GstBaseSink * bsink);
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static gboolean gst_dynudpsink_unlock (GstBaseSink * bsink);
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static gboolean gst_dynudpsink_unlock_stop (GstBaseSink * bsink);
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static void gst_dynudpsink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_dynudpsink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstStructure *gst_dynudpsink_get_stats (GstDynUDPSink * sink,
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const gchar * host, gint port);
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static guint gst_dynudpsink_signals[LAST_SIGNAL] = { 0 };
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#define gst_dynudpsink_parent_class parent_class
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G_DEFINE_TYPE (GstDynUDPSink, gst_dynudpsink, GST_TYPE_BASE_SINK);
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static void
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gst_dynudpsink_class_init (GstDynUDPSinkClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseSinkClass *gstbasesink_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasesink_class = (GstBaseSinkClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->set_property = gst_dynudpsink_set_property;
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gobject_class->get_property = gst_dynudpsink_get_property;
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gobject_class->finalize = gst_dynudpsink_finalize;
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gst_dynudpsink_signals[SIGNAL_GET_STATS] =
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g_signal_new ("get-stats", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GstDynUDPSinkClass, get_stats),
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NULL, NULL, g_cclosure_marshal_generic, GST_TYPE_STRUCTURE, 2,
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G_TYPE_STRING, G_TYPE_INT);
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g_object_class_install_property (gobject_class, PROP_SOCKET,
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g_param_spec_object ("socket", "Socket",
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"Socket to use for UDP sending. (NULL == allocate)",
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G_TYPE_SOCKET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SOCKET_V6,
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g_param_spec_object ("socket-v6", "Socket IPv6",
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"Socket to use for UDPv6 sending. (NULL == allocate)",
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G_TYPE_SOCKET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CLOSE_SOCKET,
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g_param_spec_boolean ("close-socket", "Close socket",
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"Close socket if passed as property on state change",
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UDP_DEFAULT_CLOSE_SOCKET,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BIND_ADDRESS,
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g_param_spec_string ("bind-address", "Bind Address",
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"Address to bind the socket to", UDP_DEFAULT_BIND_ADDRESS,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BIND_PORT,
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g_param_spec_int ("bind-port", "Bind Port",
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"Port to bind the socket to", 0, G_MAXUINT16,
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UDP_DEFAULT_BIND_PORT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&sink_template));
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gst_element_class_set_static_metadata (gstelement_class, "UDP packet sender",
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"Sink/Network",
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"Send data over the network via UDP with packet destinations picked up "
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"dynamically from meta on the buffers passed",
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"Philippe Khalaf <burger@speedy.org>");
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gstbasesink_class->render = gst_dynudpsink_render;
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gstbasesink_class->start = gst_dynudpsink_start;
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gstbasesink_class->stop = gst_dynudpsink_stop;
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gstbasesink_class->unlock = gst_dynudpsink_unlock;
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gstbasesink_class->unlock_stop = gst_dynudpsink_unlock_stop;
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klass->get_stats = gst_dynudpsink_get_stats;
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GST_DEBUG_CATEGORY_INIT (dynudpsink_debug, "dynudpsink", 0, "UDP sink");
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}
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static void
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gst_dynudpsink_init (GstDynUDPSink * sink)
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{
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sink->socket = UDP_DEFAULT_SOCKET;
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sink->socket_v6 = UDP_DEFAULT_SOCKET;
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sink->close_socket = UDP_DEFAULT_CLOSE_SOCKET;
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sink->external_socket = FALSE;
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sink->bind_address = UDP_DEFAULT_BIND_ADDRESS;
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sink->bind_port = UDP_DEFAULT_BIND_PORT;
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sink->used_socket = NULL;
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sink->used_socket_v6 = NULL;
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sink->cancellable = g_cancellable_new ();
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}
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static void
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gst_dynudpsink_finalize (GObject * object)
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{
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GstDynUDPSink *sink;
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sink = GST_DYNUDPSINK (object);
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if (sink->cancellable)
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g_object_unref (sink->cancellable);
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sink->cancellable = NULL;
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if (sink->socket)
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g_object_unref (sink->socket);
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sink->socket = NULL;
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if (sink->socket_v6)
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g_object_unref (sink->socket_v6);
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sink->socket_v6 = NULL;
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if (sink->used_socket)
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g_object_unref (sink->used_socket);
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sink->used_socket = NULL;
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if (sink->used_socket_v6)
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g_object_unref (sink->used_socket_v6);
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sink->used_socket_v6 = NULL;
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g_free (sink->bind_address);
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sink->bind_address = NULL;
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static GstFlowReturn
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gst_dynudpsink_render (GstBaseSink * bsink, GstBuffer * buffer)
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{
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GstDynUDPSink *sink;
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gssize ret;
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GstMapInfo map;
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GstNetAddressMeta *meta;
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GSocketAddress *addr;
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GError *err = NULL;
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GSocketFamily family;
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GSocket *socket;
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meta = gst_buffer_get_net_address_meta (buffer);
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if (meta == NULL) {
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GST_DEBUG ("Received buffer without GstNetAddressMeta, skipping");
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return GST_FLOW_OK;
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}
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sink = GST_DYNUDPSINK (bsink);
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/* let's get the address from the metadata */
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addr = meta->addr;
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family = g_socket_address_get_family (addr);
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if (family == G_SOCKET_FAMILY_IPV6 && !sink->used_socket_v6)
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goto invalid_family;
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gst_buffer_map (buffer, &map, GST_MAP_READ);
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GST_DEBUG ("about to send %" G_GSIZE_FORMAT " bytes", map.size);
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#ifndef GST_DISABLE_GST_DEBUG
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{
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gchar *host;
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host =
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g_inet_address_to_string (g_inet_socket_address_get_address
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(G_INET_SOCKET_ADDRESS (addr)));
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GST_DEBUG ("sending %" G_GSIZE_FORMAT " bytes to client %s port %d",
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map.size, host,
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g_inet_socket_address_get_port (G_INET_SOCKET_ADDRESS (addr)));
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g_free (host);
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}
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#endif
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/* Select socket to send from for this address */
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if (family == G_SOCKET_FAMILY_IPV6 || !sink->used_socket)
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socket = sink->used_socket_v6;
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else
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socket = sink->used_socket;
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ret =
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g_socket_send_to (socket, addr, (gchar *) map.data, map.size,
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sink->cancellable, &err);
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gst_buffer_unmap (buffer, &map);
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if (ret < 0)
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goto send_error;
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GST_DEBUG ("sent %" G_GSSIZE_FORMAT " bytes", ret);
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return GST_FLOW_OK;
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send_error:
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{
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GstFlowReturn flow_ret;
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if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
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GST_DEBUG_OBJECT (sink, "send cancelled");
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flow_ret = GST_FLOW_FLUSHING;
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} else {
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GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
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("send error: %s", err->message));
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flow_ret = GST_FLOW_ERROR;
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}
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g_clear_error (&err);
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return flow_ret;
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}
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invalid_family:
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{
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GST_DEBUG ("invalid address family (got %d)", family);
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return GST_FLOW_ERROR;
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}
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}
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static void
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gst_dynudpsink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstDynUDPSink *udpsink;
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udpsink = GST_DYNUDPSINK (object);
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switch (prop_id) {
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case PROP_SOCKET:
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if (udpsink->socket != NULL && udpsink->socket != udpsink->used_socket &&
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udpsink->close_socket) {
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GError *err = NULL;
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if (!g_socket_close (udpsink->socket, &err)) {
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GST_ERROR ("failed to close socket %p: %s", udpsink->socket,
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err->message);
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g_clear_error (&err);
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}
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}
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if (udpsink->socket)
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g_object_unref (udpsink->socket);
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udpsink->socket = g_value_dup_object (value);
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GST_DEBUG ("setting socket to %p", udpsink->socket);
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break;
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case PROP_SOCKET_V6:
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if (udpsink->socket_v6 != NULL
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&& udpsink->socket_v6 != udpsink->used_socket_v6
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&& udpsink->close_socket) {
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GError *err = NULL;
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if (!g_socket_close (udpsink->socket_v6, &err)) {
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GST_ERROR ("failed to close socket %p: %s", udpsink->socket_v6,
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err->message);
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g_clear_error (&err);
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}
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}
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if (udpsink->socket_v6)
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g_object_unref (udpsink->socket_v6);
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udpsink->socket_v6 = g_value_dup_object (value);
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GST_DEBUG ("setting socket v6 to %p", udpsink->socket_v6);
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break;
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case PROP_CLOSE_SOCKET:
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udpsink->close_socket = g_value_get_boolean (value);
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break;
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case PROP_BIND_ADDRESS:
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g_free (udpsink->bind_address);
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udpsink->bind_address = g_value_dup_string (value);
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break;
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case PROP_BIND_PORT:
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udpsink->bind_port = g_value_get_int (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_dynudpsink_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstDynUDPSink *udpsink;
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udpsink = GST_DYNUDPSINK (object);
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switch (prop_id) {
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case PROP_SOCKET:
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g_value_set_object (value, udpsink->socket);
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break;
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case PROP_SOCKET_V6:
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g_value_set_object (value, udpsink->socket_v6);
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break;
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case PROP_CLOSE_SOCKET:
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g_value_set_boolean (value, udpsink->close_socket);
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break;
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case PROP_BIND_ADDRESS:
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g_value_set_string (value, udpsink->bind_address);
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break;
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case PROP_BIND_PORT:
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g_value_set_int (value, udpsink->bind_port);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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/* create a socket for sending to remote machine */
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static gboolean
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gst_dynudpsink_start (GstBaseSink * bsink)
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{
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GstDynUDPSink *udpsink;
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GError *err = NULL;
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udpsink = GST_DYNUDPSINK (bsink);
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udpsink->external_socket = FALSE;
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if (udpsink->socket) {
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if (g_socket_get_family (udpsink->socket) == G_SOCKET_FAMILY_IPV6) {
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udpsink->used_socket_v6 = G_SOCKET (g_object_ref (udpsink->socket));
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udpsink->external_socket = TRUE;
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} else {
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udpsink->used_socket = G_SOCKET (g_object_ref (udpsink->socket));
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udpsink->external_socket = TRUE;
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}
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}
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if (udpsink->socket_v6) {
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g_return_val_if_fail (g_socket_get_family (udpsink->socket) !=
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G_SOCKET_FAMILY_IPV6, FALSE);
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if (udpsink->used_socket_v6
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&& udpsink->used_socket_v6 != udpsink->socket_v6) {
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GST_ERROR_OBJECT (udpsink,
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"Provided different IPv6 sockets in socket and socket-v6 properties");
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return FALSE;
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}
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udpsink->used_socket_v6 = G_SOCKET (g_object_ref (udpsink->socket_v6));
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udpsink->external_socket = TRUE;
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}
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if (!udpsink->used_socket && !udpsink->used_socket_v6) {
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GSocketAddress *bind_addr;
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GInetAddress *bind_iaddr;
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if (udpsink->bind_address) {
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GSocketFamily family;
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bind_iaddr = g_inet_address_new_from_string (udpsink->bind_address);
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if (!bind_iaddr) {
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GList *results;
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GResolver *resolver;
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resolver = g_resolver_get_default ();
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results =
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g_resolver_lookup_by_name (resolver, udpsink->bind_address,
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udpsink->cancellable, &err);
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if (!results) {
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g_object_unref (resolver);
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goto name_resolve;
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}
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bind_iaddr = G_INET_ADDRESS (g_object_ref (results->data));
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g_resolver_free_addresses (results);
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g_object_unref (resolver);
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}
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bind_addr = g_inet_socket_address_new (bind_iaddr, udpsink->bind_port);
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g_object_unref (bind_iaddr);
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family = g_socket_address_get_family (G_SOCKET_ADDRESS (bind_addr));
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if ((udpsink->used_socket =
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g_socket_new (family, G_SOCKET_TYPE_DATAGRAM,
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G_SOCKET_PROTOCOL_UDP, &err)) == NULL) {
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g_object_unref (bind_addr);
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goto no_socket;
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}
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g_socket_bind (udpsink->used_socket, bind_addr, TRUE, &err);
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if (err != NULL)
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goto bind_error;
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} else {
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/* create sender sockets if none available */
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if ((udpsink->used_socket = g_socket_new (G_SOCKET_FAMILY_IPV4,
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G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err)) == NULL)
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goto no_socket;
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bind_iaddr = g_inet_address_new_any (G_SOCKET_FAMILY_IPV4);
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bind_addr = g_inet_socket_address_new (bind_iaddr, 0);
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g_socket_bind (udpsink->used_socket, bind_addr, TRUE, &err);
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g_object_unref (bind_addr);
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g_object_unref (bind_iaddr);
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if (err != NULL)
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goto bind_error;
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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;
|
|
}
|