mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1192 lines
35 KiB
C
1192 lines
35 KiB
C
/* GStreamer
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* Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>
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* Copyright (C) <2009> Jarkko Palviainen <jarkko.palviainen@sesca.com>
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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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/**
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* SECTION:element-multiudpsink
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* @see_also: udpsink, multifdsink
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*
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* multiudpsink is a network sink that sends UDP packets to multiple
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* clients.
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* It can be combined with rtp payload encoders to implement RTP streaming.
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*/
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/* FIXME 0.11: suppress warnings for deprecated API such as GValueArray
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* with newer GLib versions (>= 2.31.0) */
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#define GLIB_DISABLE_DEPRECATION_WARNINGS
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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 "gstudp-marshal.h"
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#include "gstmultiudpsink.h"
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#include <string.h>
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifndef G_OS_WIN32
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#include <netinet/in.h>
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#endif
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#include "gst/glib-compat-private.h"
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GST_DEBUG_CATEGORY_STATIC (multiudpsink_debug);
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#define GST_CAT_DEFAULT (multiudpsink_debug)
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#define UDP_MAX_SIZE 65507
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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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/* MultiUDPSink signals and args */
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enum
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{
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/* methods */
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SIGNAL_ADD,
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SIGNAL_REMOVE,
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SIGNAL_CLEAR,
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SIGNAL_GET_STATS,
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/* signals */
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SIGNAL_CLIENT_ADDED,
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SIGNAL_CLIENT_REMOVED,
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/* FILL ME */
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LAST_SIGNAL
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};
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#define DEFAULT_SOCKET NULL
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#define DEFAULT_CLOSE_SOCKET TRUE
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#define DEFAULT_USED_SOCKET NULL
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#define DEFAULT_CLIENTS NULL
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/* FIXME, this should be disabled by default, we don't need to join a multicast
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* group for sending, if this socket is also used for receiving, it should
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* be configured in the element that does the receive. */
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#define DEFAULT_AUTO_MULTICAST TRUE
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#define DEFAULT_MULTICAST_IFACE NULL
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#define DEFAULT_TTL 64
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#define DEFAULT_TTL_MC 1
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#define DEFAULT_LOOP TRUE
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#define DEFAULT_FORCE_IPV4 FALSE
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#define DEFAULT_QOS_DSCP -1
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#define DEFAULT_SEND_DUPLICATES TRUE
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#define DEFAULT_BUFFER_SIZE 0
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enum
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{
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PROP_0,
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PROP_BYTES_TO_SERVE,
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PROP_BYTES_SERVED,
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PROP_SOCKET,
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PROP_CLOSE_SOCKET,
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PROP_USED_SOCKET,
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PROP_CLIENTS,
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PROP_AUTO_MULTICAST,
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PROP_MULTICAST_IFACE,
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PROP_TTL,
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PROP_TTL_MC,
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PROP_LOOP,
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PROP_FORCE_IPV4,
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PROP_QOS_DSCP,
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PROP_SEND_DUPLICATES,
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PROP_BUFFER_SIZE,
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PROP_LAST
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};
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static void gst_multiudpsink_finalize (GObject * object);
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static GstFlowReturn gst_multiudpsink_render (GstBaseSink * sink,
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GstBuffer * buffer);
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static gboolean gst_multiudpsink_start (GstBaseSink * bsink);
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static gboolean gst_multiudpsink_stop (GstBaseSink * bsink);
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static gboolean gst_multiudpsink_unlock (GstBaseSink * bsink);
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static gboolean gst_multiudpsink_unlock_stop (GstBaseSink * bsink);
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static void gst_multiudpsink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_multiudpsink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_multiudpsink_add_internal (GstMultiUDPSink * sink,
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const gchar * host, gint port, gboolean lock);
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static void gst_multiudpsink_clear_internal (GstMultiUDPSink * sink,
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gboolean lock);
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static guint gst_multiudpsink_signals[LAST_SIGNAL] = { 0 };
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#define gst_multiudpsink_parent_class parent_class
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G_DEFINE_TYPE (GstMultiUDPSink, gst_multiudpsink, GST_TYPE_BASE_SINK);
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static void
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gst_multiudpsink_class_init (GstMultiUDPSinkClass * 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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gobject_class->set_property = gst_multiudpsink_set_property;
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gobject_class->get_property = gst_multiudpsink_get_property;
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gobject_class->finalize = gst_multiudpsink_finalize;
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/**
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* GstMultiUDPSink::add:
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* @gstmultiudpsink: the sink on which the signal is emitted
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* @host: the hostname/IP address of the client to add
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* @port: the port of the client to add
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*
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* Add a client with destination @host and @port to the list of
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* clients. When the same host/port pair is added multiple times, the
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* send-duplicates property defines if the packets are sent multiple times to
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* the same host/port pair or not.
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*
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* When a host/port pair is added multiple times, an equal amount of remove
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* calls must be performed to actually remove the host/port pair from the list
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* of destinations.
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*/
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gst_multiudpsink_signals[SIGNAL_ADD] =
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g_signal_new ("add", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GstMultiUDPSinkClass, add),
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NULL, NULL, gst_udp_marshal_VOID__STRING_INT, G_TYPE_NONE, 2,
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G_TYPE_STRING, G_TYPE_INT);
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/**
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* GstMultiUDPSink::remove:
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* @gstmultiudpsink: the sink on which the signal is emitted
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* @host: the hostname/IP address of the client to remove
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* @port: the port of the client to remove
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*
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* Remove the client with destination @host and @port from the list of
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* clients.
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*/
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gst_multiudpsink_signals[SIGNAL_REMOVE] =
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g_signal_new ("remove", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GstMultiUDPSinkClass, remove),
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NULL, NULL, gst_udp_marshal_VOID__STRING_INT, G_TYPE_NONE, 2,
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G_TYPE_STRING, G_TYPE_INT);
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/**
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* GstMultiUDPSink::clear:
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* @gstmultiudpsink: the sink on which the signal is emitted
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*
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* Clear the list of clients.
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*/
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gst_multiudpsink_signals[SIGNAL_CLEAR] =
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g_signal_new ("clear", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GstMultiUDPSinkClass, clear),
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NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
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/**
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* GstMultiUDPSink::get-stats:
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* @gstmultiudpsink: the sink on which the signal is emitted
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* @host: the hostname/IP address of the client to get stats on
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* @port: the port of the client to get stats on
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*
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* Get the statistics of the client with destination @host and @port.
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*
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* Returns: a GstStructure: bytes_sent, packets_sent,
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* connect_time (in epoch seconds), disconnect_time (in epoch seconds)
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*/
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gst_multiudpsink_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 (GstMultiUDPSinkClass, get_stats),
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NULL, NULL, gst_udp_marshal_BOXED__STRING_INT, GST_TYPE_STRUCTURE, 2,
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G_TYPE_STRING, G_TYPE_INT);
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/**
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* GstMultiUDPSink::client-added:
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* @gstmultiudpsink: the sink emitting the signal
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* @host: the hostname/IP address of the added client
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* @port: the port of the added client
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*
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* Signal emited when a new client is added to the list of
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* clients.
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*/
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gst_multiudpsink_signals[SIGNAL_CLIENT_ADDED] =
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g_signal_new ("client-added", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstMultiUDPSinkClass, client_added),
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NULL, NULL, gst_udp_marshal_VOID__STRING_INT, G_TYPE_NONE, 2,
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G_TYPE_STRING, G_TYPE_INT);
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/**
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* GstMultiUDPSink::client-removed:
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* @gstmultiudpsink: the sink emitting the signal
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* @host: the hostname/IP address of the removed client
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* @port: the port of the removed client
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*
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* Signal emited when a client is removed from the list of
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* clients.
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*/
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gst_multiudpsink_signals[SIGNAL_CLIENT_REMOVED] =
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g_signal_new ("client-removed", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstMultiUDPSinkClass,
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client_removed), NULL, NULL, gst_udp_marshal_VOID__STRING_INT,
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G_TYPE_NONE, 2, G_TYPE_STRING, G_TYPE_INT);
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BYTES_TO_SERVE,
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g_param_spec_uint64 ("bytes-to-serve", "Bytes to serve",
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"Number of bytes received to serve to clients", 0, G_MAXUINT64, 0,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BYTES_SERVED,
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g_param_spec_uint64 ("bytes-served", "Bytes served",
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"Total number of bytes sent to all clients", 0, G_MAXUINT64, 0,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SOCKET,
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g_param_spec_object ("socket", "Socket Handle",
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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_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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DEFAULT_CLOSE_SOCKET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_USED_SOCKET,
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g_param_spec_object ("used-socket", "Used Socket Handle",
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"Socket currently in use for UDP sending. (NULL == no socket)",
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G_TYPE_SOCKET, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CLIENTS,
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g_param_spec_string ("clients", "Clients",
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"A comma separated list of host:port pairs with destinations",
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DEFAULT_CLIENTS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_AUTO_MULTICAST,
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g_param_spec_boolean ("auto-multicast",
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"Automatically join/leave multicast groups",
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"Automatically join/leave the multicast groups, FALSE means user"
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" has to do it himself", DEFAULT_AUTO_MULTICAST,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_MULTICAST_IFACE,
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g_param_spec_string ("multicast-iface", "Multicast Interface",
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"The network interface on which to join the multicast group",
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DEFAULT_MULTICAST_IFACE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_TTL,
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g_param_spec_int ("ttl", "Unicast TTL",
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"Used for setting the unicast TTL parameter",
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0, 255, DEFAULT_TTL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_TTL_MC,
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g_param_spec_int ("ttl-mc", "Multicast TTL",
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"Used for setting the multicast TTL parameter",
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0, 255, DEFAULT_TTL_MC, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_LOOP,
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g_param_spec_boolean ("loop", "Multicast Loopback",
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"Used for setting the multicast loop parameter. TRUE = enable,"
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" FALSE = disable", DEFAULT_LOOP,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstMultiUDPSink::force-ipv4
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*
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* Force the use of an IPv4 socket.
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*
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* Since: 1.0.2
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*/
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g_object_class_install_property (gobject_class, PROP_FORCE_IPV4,
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g_param_spec_boolean ("force-ipv4", "Force IPv4",
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"Forcing the use of an IPv4 socket", DEFAULT_FORCE_IPV4,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_QOS_DSCP,
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g_param_spec_int ("qos-dscp", "QoS diff srv code point",
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"Quality of Service, differentiated services code point (-1 default)",
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-1, 63, DEFAULT_QOS_DSCP,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstMultiUDPSink::send-duplicates
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*
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* When a host/port pair is added mutliple times, send the packet to the host
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* multiple times as well.
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*
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* Since: 0.10.26
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*/
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SEND_DUPLICATES,
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g_param_spec_boolean ("send-duplicates", "Send Duplicates",
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"When a distination/port pair is added multiple times, send packets "
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"multiple times as well", DEFAULT_SEND_DUPLICATES,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BUFFER_SIZE,
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g_param_spec_int ("buffer-size", "Buffer Size",
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"Size of the kernel send buffer in bytes, 0=default", 0, G_MAXINT,
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DEFAULT_BUFFER_SIZE, 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",
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"Wim Taymans <wim.taymans@gmail.com>");
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gstbasesink_class->render = gst_multiudpsink_render;
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gstbasesink_class->start = gst_multiudpsink_start;
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gstbasesink_class->stop = gst_multiudpsink_stop;
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gstbasesink_class->unlock = gst_multiudpsink_unlock;
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gstbasesink_class->unlock_stop = gst_multiudpsink_unlock_stop;
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klass->add = gst_multiudpsink_add;
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klass->remove = gst_multiudpsink_remove;
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klass->clear = gst_multiudpsink_clear;
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klass->get_stats = gst_multiudpsink_get_stats;
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GST_DEBUG_CATEGORY_INIT (multiudpsink_debug, "multiudpsink", 0, "UDP sink");
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}
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static void
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gst_multiudpsink_init (GstMultiUDPSink * sink)
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{
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g_mutex_init (&sink->client_lock);
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sink->socket = DEFAULT_SOCKET;
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sink->used_socket = DEFAULT_USED_SOCKET;
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sink->close_socket = DEFAULT_CLOSE_SOCKET;
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sink->external_socket = (sink->socket != NULL);
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sink->auto_multicast = DEFAULT_AUTO_MULTICAST;
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sink->ttl = DEFAULT_TTL;
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sink->ttl_mc = DEFAULT_TTL_MC;
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sink->loop = DEFAULT_LOOP;
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sink->force_ipv4 = DEFAULT_FORCE_IPV4;
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sink->qos_dscp = DEFAULT_QOS_DSCP;
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sink->send_duplicates = DEFAULT_SEND_DUPLICATES;
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sink->multi_iface = g_strdup (DEFAULT_MULTICAST_IFACE);
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sink->cancellable = g_cancellable_new ();
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}
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static GstUDPClient *
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create_client (GstMultiUDPSink * sink, const gchar * host, gint port)
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{
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GstUDPClient *client;
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GInetAddress *addr;
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GResolver *resolver;
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GError *err = NULL;
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addr = g_inet_address_new_from_string (host);
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if (!addr) {
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GList *results;
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resolver = g_resolver_get_default ();
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results =
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g_resolver_lookup_by_name (resolver, host, sink->cancellable, &err);
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if (!results)
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goto name_resolve;
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addr = 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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#ifndef GST_DISABLE_GST_DEBUG
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{
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gchar *ip = g_inet_address_to_string (addr);
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GST_DEBUG_OBJECT (sink, "IP address for host %s is %s", host, ip);
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g_free (ip);
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}
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#endif
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client = g_slice_new0 (GstUDPClient);
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client->refcount = 1;
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client->host = g_strdup (host);
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client->port = port;
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client->addr = g_inet_socket_address_new (addr, port);
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g_object_unref (addr);
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return client;
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name_resolve:
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{
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g_object_unref (resolver);
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return NULL;
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}
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}
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static void
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free_client (GstUDPClient * client)
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{
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g_object_unref (client->addr);
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|
g_free (client->host);
|
|
g_slice_free (GstUDPClient, client);
|
|
}
|
|
|
|
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
|
|
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);
|
|
|
|
if (sink->socket)
|
|
g_object_unref (sink->socket);
|
|
sink->socket = NULL;
|
|
|
|
if (sink->used_socket)
|
|
g_object_unref (sink->used_socket);
|
|
sink->used_socket = NULL;
|
|
|
|
if (sink->cancellable)
|
|
g_object_unref (sink->cancellable);
|
|
sink->cancellable = NULL;
|
|
|
|
g_free (sink->multi_iface);
|
|
sink->multi_iface = NULL;
|
|
|
|
g_mutex_clear (&sink->client_lock);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_multiudpsink_render (GstBaseSink * bsink, GstBuffer * buffer)
|
|
{
|
|
GstMultiUDPSink *sink;
|
|
GList *clients;
|
|
GOutputVector *vec;
|
|
GstMapInfo *map;
|
|
guint n_mem, i;
|
|
gsize size;
|
|
GstMemory *mem;
|
|
gint num, no_clients;
|
|
GError *err = NULL;
|
|
|
|
sink = GST_MULTIUDPSINK (bsink);
|
|
|
|
n_mem = gst_buffer_n_memory (buffer);
|
|
if (n_mem == 0)
|
|
goto no_data;
|
|
|
|
vec = g_new (GOutputVector, n_mem);
|
|
map = g_new (GstMapInfo, n_mem);
|
|
|
|
size = 0;
|
|
for (i = 0; i < n_mem; i++) {
|
|
mem = gst_buffer_get_memory (buffer, i);
|
|
gst_memory_map (mem, &map[i], GST_MAP_READ);
|
|
|
|
vec[i].buffer = map[i].data;
|
|
vec[i].size = map[i].size;
|
|
|
|
size += map[i].size;
|
|
}
|
|
|
|
sink->bytes_to_serve += size;
|
|
|
|
/* grab lock while iterating and sending to clients, this should be
|
|
* fast as UDP never blocks */
|
|
g_mutex_lock (&sink->client_lock);
|
|
GST_LOG_OBJECT (bsink, "about to send %" G_GSIZE_FORMAT " bytes", size);
|
|
|
|
no_clients = 0;
|
|
num = 0;
|
|
for (clients = sink->clients; clients; clients = g_list_next (clients)) {
|
|
GstUDPClient *client;
|
|
gint count;
|
|
|
|
client = (GstUDPClient *) clients->data;
|
|
no_clients++;
|
|
GST_LOG_OBJECT (sink, "sending %" G_GSIZE_FORMAT " bytes to client %p",
|
|
size, client);
|
|
|
|
count = sink->send_duplicates ? client->refcount : 1;
|
|
|
|
while (count--) {
|
|
gssize ret;
|
|
|
|
ret =
|
|
g_socket_send_message (sink->used_socket, client->addr, vec, n_mem,
|
|
NULL, 0, 0, sink->cancellable, &err);
|
|
|
|
if (G_UNLIKELY (ret < 0)) {
|
|
if (g_error_matches (err, G_IO_ERROR, G_IO_ERROR_CANCELLED))
|
|
goto flushing;
|
|
|
|
/* we continue after posting a warning, next packets might be ok
|
|
* again */
|
|
if (size > UDP_MAX_SIZE) {
|
|
GST_ELEMENT_WARNING (sink, RESOURCE, WRITE,
|
|
("Attempting to send a UDP packet larger than maximum size "
|
|
"(%" G_GSIZE_FORMAT " > %d)", size, UDP_MAX_SIZE),
|
|
("Reason: %s", err ? err->message : "unknown reason"));
|
|
} else {
|
|
GST_ELEMENT_WARNING (sink, RESOURCE, WRITE,
|
|
("Error sending UDP packet"), ("Reason: %s",
|
|
err ? err->message : "unknown reason"));
|
|
}
|
|
g_clear_error (&err);
|
|
} else {
|
|
num++;
|
|
client->bytes_sent += ret;
|
|
client->packets_sent++;
|
|
sink->bytes_served += ret;
|
|
}
|
|
}
|
|
}
|
|
g_mutex_unlock (&sink->client_lock);
|
|
|
|
/* unmap all memory again */
|
|
for (i = 0; i < n_mem; i++) {
|
|
gst_memory_unmap (map[i].memory, &map[i]);
|
|
gst_memory_unref (map[i].memory);
|
|
}
|
|
|
|
g_free (vec);
|
|
g_free (map);
|
|
|
|
GST_LOG_OBJECT (sink, "sent %" G_GSIZE_FORMAT " bytes to %d (of %d) clients",
|
|
size, num, no_clients);
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
no_data:
|
|
{
|
|
return GST_FLOW_OK;
|
|
}
|
|
flushing:
|
|
{
|
|
GST_DEBUG ("we are flushing");
|
|
g_mutex_unlock (&sink->client_lock);
|
|
g_clear_error (&err);
|
|
|
|
return GST_FLOW_FLUSHING;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_multiudpsink_set_clients_string (GstMultiUDPSink * sink,
|
|
const gchar * string)
|
|
{
|
|
gchar **clients;
|
|
gint i;
|
|
|
|
clients = g_strsplit (string, ",", 0);
|
|
|
|
g_mutex_lock (&sink->client_lock);
|
|
/* clear all existing clients */
|
|
gst_multiudpsink_clear_internal (sink, FALSE);
|
|
for (i = 0; clients[i]; i++) {
|
|
gchar *host, *p;
|
|
gint64 port = 0;
|
|
|
|
host = clients[i];
|
|
p = strstr (clients[i], ":");
|
|
if (p != NULL) {
|
|
*p = '\0';
|
|
port = g_ascii_strtoll (p + 1, NULL, 10);
|
|
}
|
|
if (port != 0)
|
|
gst_multiudpsink_add_internal (sink, host, port, FALSE);
|
|
}
|
|
g_mutex_unlock (&sink->client_lock);
|
|
|
|
g_strfreev (clients);
|
|
}
|
|
|
|
static gchar *
|
|
gst_multiudpsink_get_clients_string (GstMultiUDPSink * sink)
|
|
{
|
|
GString *str;
|
|
GList *clients;
|
|
|
|
str = g_string_new ("");
|
|
|
|
g_mutex_lock (&sink->client_lock);
|
|
clients = sink->clients;
|
|
while (clients) {
|
|
GstUDPClient *client;
|
|
gint count;
|
|
|
|
client = (GstUDPClient *) clients->data;
|
|
|
|
clients = g_list_next (clients);
|
|
|
|
count = client->refcount;
|
|
while (count--) {
|
|
g_string_append_printf (str, "%s:%d%s", client->host, client->port,
|
|
(clients || count > 1 ? "," : ""));
|
|
}
|
|
}
|
|
g_mutex_unlock (&sink->client_lock);
|
|
|
|
return g_string_free (str, FALSE);
|
|
}
|
|
|
|
static void
|
|
gst_multiudpsink_setup_qos_dscp (GstMultiUDPSink * sink)
|
|
{
|
|
/* don't touch on -1 */
|
|
if (sink->qos_dscp < 0)
|
|
return;
|
|
|
|
if (sink->used_socket == NULL)
|
|
return;
|
|
|
|
#ifdef IP_TOS
|
|
{
|
|
gint tos;
|
|
gint fd;
|
|
|
|
fd = g_socket_get_fd (sink->used_socket);
|
|
|
|
GST_DEBUG_OBJECT (sink, "setting TOS to %d", sink->qos_dscp);
|
|
|
|
/* Extract and shift 6 bits of DSFIELD */
|
|
tos = (sink->qos_dscp & 0x3f) << 2;
|
|
|
|
if (setsockopt (fd, IPPROTO_IP, IP_TOS, &tos, sizeof (tos)) < 0) {
|
|
GST_ERROR_OBJECT (sink, "could not set TOS: %s", g_strerror (errno));
|
|
}
|
|
#ifdef IPV6_TCLASS
|
|
if (setsockopt (fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof (tos)) < 0) {
|
|
GST_ERROR_OBJECT (sink, "could not set TCLASS: %s", g_strerror (errno));
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
}
|
|
|
|
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) {
|
|
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_OBJECT (udpsink, "setting socket to %p", udpsink->socket);
|
|
break;
|
|
case PROP_CLOSE_SOCKET:
|
|
udpsink->close_socket = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_CLIENTS:
|
|
gst_multiudpsink_set_clients_string (udpsink, g_value_get_string (value));
|
|
break;
|
|
case PROP_AUTO_MULTICAST:
|
|
udpsink->auto_multicast = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_MULTICAST_IFACE:
|
|
g_free (udpsink->multi_iface);
|
|
|
|
if (g_value_get_string (value) == NULL)
|
|
udpsink->multi_iface = g_strdup (DEFAULT_MULTICAST_IFACE);
|
|
else
|
|
udpsink->multi_iface = g_value_dup_string (value);
|
|
break;
|
|
case PROP_TTL:
|
|
udpsink->ttl = g_value_get_int (value);
|
|
break;
|
|
case PROP_TTL_MC:
|
|
udpsink->ttl_mc = g_value_get_int (value);
|
|
break;
|
|
case PROP_LOOP:
|
|
udpsink->loop = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_FORCE_IPV4:
|
|
udpsink->force_ipv4 = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_QOS_DSCP:
|
|
udpsink->qos_dscp = g_value_get_int (value);
|
|
gst_multiudpsink_setup_qos_dscp (udpsink);
|
|
break;
|
|
case PROP_SEND_DUPLICATES:
|
|
udpsink->send_duplicates = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_BUFFER_SIZE:
|
|
udpsink->buffer_size = g_value_get_int (value);
|
|
break;
|
|
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;
|
|
case PROP_SOCKET:
|
|
g_value_set_object (value, udpsink->socket);
|
|
break;
|
|
case PROP_CLOSE_SOCKET:
|
|
g_value_set_boolean (value, udpsink->close_socket);
|
|
break;
|
|
case PROP_USED_SOCKET:
|
|
g_value_set_object (value, udpsink->used_socket);
|
|
break;
|
|
case PROP_CLIENTS:
|
|
g_value_take_string (value,
|
|
gst_multiudpsink_get_clients_string (udpsink));
|
|
break;
|
|
case PROP_AUTO_MULTICAST:
|
|
g_value_set_boolean (value, udpsink->auto_multicast);
|
|
break;
|
|
case PROP_MULTICAST_IFACE:
|
|
g_value_set_string (value, udpsink->multi_iface);
|
|
break;
|
|
case PROP_TTL:
|
|
g_value_set_int (value, udpsink->ttl);
|
|
break;
|
|
case PROP_TTL_MC:
|
|
g_value_set_int (value, udpsink->ttl_mc);
|
|
break;
|
|
case PROP_LOOP:
|
|
g_value_set_boolean (value, udpsink->loop);
|
|
break;
|
|
case PROP_FORCE_IPV4:
|
|
g_value_set_boolean (value, udpsink->force_ipv4);
|
|
break;
|
|
case PROP_QOS_DSCP:
|
|
g_value_set_int (value, udpsink->qos_dscp);
|
|
break;
|
|
case PROP_SEND_DUPLICATES:
|
|
g_value_set_boolean (value, udpsink->send_duplicates);
|
|
break;
|
|
case PROP_BUFFER_SIZE:
|
|
g_value_set_int (value, udpsink->buffer_size);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_multiudpsink_configure_client (GstMultiUDPSink * sink,
|
|
GstUDPClient * client)
|
|
{
|
|
GInetSocketAddress *saddr = G_INET_SOCKET_ADDRESS (client->addr);
|
|
GInetAddress *addr = g_inet_socket_address_get_address (saddr);
|
|
GError *err = NULL;
|
|
|
|
GST_DEBUG_OBJECT (sink, "configuring client %p", client);
|
|
|
|
if (g_inet_address_get_is_multicast (addr)) {
|
|
GST_DEBUG_OBJECT (sink, "we have a multicast client %p", client);
|
|
if (sink->auto_multicast) {
|
|
GST_DEBUG_OBJECT (sink, "autojoining group");
|
|
if (!g_socket_join_multicast_group (sink->used_socket, addr, FALSE,
|
|
sink->multi_iface, &err))
|
|
goto join_group_failed;
|
|
}
|
|
GST_DEBUG_OBJECT (sink, "setting loop to %d", sink->loop);
|
|
g_socket_set_multicast_loopback (sink->used_socket, sink->loop);
|
|
GST_DEBUG_OBJECT (sink, "setting ttl to %d", sink->ttl_mc);
|
|
g_socket_set_multicast_ttl (sink->used_socket, sink->ttl_mc);
|
|
} else {
|
|
GST_DEBUG_OBJECT (sink, "setting unicast ttl to %d", sink->ttl);
|
|
g_socket_set_ttl (sink->used_socket, sink->ttl);
|
|
}
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
join_group_failed:
|
|
{
|
|
gst_multiudpsink_stop (GST_BASE_SINK (sink));
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
|
|
("Could not join multicast group: %s",
|
|
err ? err->message : "unknown reason"));
|
|
g_clear_error (&err);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* create a socket for sending to remote machine */
|
|
static gboolean
|
|
gst_multiudpsink_start (GstBaseSink * bsink)
|
|
{
|
|
GstMultiUDPSink *sink;
|
|
GList *clients;
|
|
GstUDPClient *client;
|
|
GError *err = NULL;
|
|
|
|
sink = GST_MULTIUDPSINK (bsink);
|
|
|
|
if (sink->socket == NULL) {
|
|
GST_DEBUG_OBJECT (sink, "creating sockets");
|
|
/* create sender socket try IP6, fall back to IP4 */
|
|
if (sink->force_ipv4 || (sink->used_socket =
|
|
g_socket_new (G_SOCKET_FAMILY_IPV6,
|
|
G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err)) == NULL) {
|
|
if ((sink->used_socket = g_socket_new (G_SOCKET_FAMILY_IPV4,
|
|
G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err)) == NULL)
|
|
goto no_socket;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (sink, "have socket");
|
|
sink->external_socket = FALSE;
|
|
} else {
|
|
GST_DEBUG_OBJECT (sink, "using configured socket");
|
|
/* we use the configured socket */
|
|
sink->used_socket = G_SOCKET (g_object_ref (sink->socket));
|
|
sink->external_socket = TRUE;
|
|
}
|
|
|
|
#ifdef SO_SNDBUF
|
|
{
|
|
socklen_t len;
|
|
gint sndsize, ret;
|
|
|
|
len = sizeof (sndsize);
|
|
if (sink->buffer_size != 0) {
|
|
sndsize = sink->buffer_size;
|
|
|
|
GST_DEBUG_OBJECT (sink, "setting udp buffer of %d bytes", sndsize);
|
|
/* 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 (sink->used_socket), SOL_SOCKET,
|
|
SO_SNDBUF, (void *) &sndsize, len);
|
|
if (ret != 0) {
|
|
GST_ELEMENT_WARNING (sink, RESOURCE, SETTINGS, (NULL),
|
|
("Could not create a buffer of requested %d bytes, %d: %s",
|
|
sndsize, ret, g_strerror (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 (sink->used_socket), SOL_SOCKET, SO_SNDBUF,
|
|
(void *) &sndsize, &len);
|
|
if (ret == 0)
|
|
GST_DEBUG_OBJECT (sink, "have udp buffer of %d bytes", sndsize);
|
|
else
|
|
GST_DEBUG_OBJECT (sink, "could not get udp buffer size");
|
|
}
|
|
#endif
|
|
|
|
g_socket_set_broadcast (sink->used_socket, TRUE);
|
|
|
|
sink->bytes_to_serve = 0;
|
|
sink->bytes_served = 0;
|
|
|
|
gst_multiudpsink_setup_qos_dscp (sink);
|
|
|
|
/* look for multicast clients and join multicast groups appropriately
|
|
set also ttl and multicast loopback delivery appropriately */
|
|
for (clients = sink->clients; clients; clients = g_list_next (clients)) {
|
|
client = (GstUDPClient *) clients->data;
|
|
|
|
if (!gst_multiudpsink_configure_client (sink, client))
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_socket:
|
|
{
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (NULL),
|
|
("Could not create socket: %s", err->message));
|
|
g_clear_error (&err);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_multiudpsink_stop (GstBaseSink * bsink)
|
|
{
|
|
GstMultiUDPSink *udpsink;
|
|
|
|
udpsink = GST_MULTIUDPSINK (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;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_multiudpsink_add_internal (GstMultiUDPSink * sink, const gchar * host,
|
|
gint port, gboolean lock)
|
|
{
|
|
GstUDPClient *client;
|
|
GstUDPClient udpclient;
|
|
GTimeVal now;
|
|
GList *find;
|
|
|
|
udpclient.host = (gchar *) host;
|
|
udpclient.port = port;
|
|
|
|
GST_DEBUG_OBJECT (sink, "adding client on host %s, port %d", host, port);
|
|
|
|
if (lock)
|
|
g_mutex_lock (&sink->client_lock);
|
|
|
|
find = g_list_find_custom (sink->clients, &udpclient,
|
|
(GCompareFunc) client_compare);
|
|
if (find) {
|
|
client = (GstUDPClient *) find->data;
|
|
|
|
GST_DEBUG_OBJECT (sink, "found %d existing clients with host %s, port %d",
|
|
client->refcount, host, port);
|
|
client->refcount++;
|
|
} else {
|
|
client = create_client (sink, host, port);
|
|
if (!client)
|
|
goto error;
|
|
|
|
g_get_current_time (&now);
|
|
client->connect_time = GST_TIMEVAL_TO_TIME (now);
|
|
|
|
if (sink->used_socket)
|
|
gst_multiudpsink_configure_client (sink, client);
|
|
|
|
GST_DEBUG_OBJECT (sink, "add client with host %s, port %d", host, port);
|
|
sink->clients = g_list_prepend (sink->clients, client);
|
|
}
|
|
|
|
if (lock)
|
|
g_mutex_unlock (&sink->client_lock);
|
|
|
|
g_signal_emit (G_OBJECT (sink),
|
|
gst_multiudpsink_signals[SIGNAL_CLIENT_ADDED], 0, host, port);
|
|
|
|
GST_DEBUG_OBJECT (sink, "added client on host %s, port %d", host, port);
|
|
return;
|
|
|
|
/* ERRORS */
|
|
error:
|
|
{
|
|
GST_DEBUG_OBJECT (sink, "did not add client on host %s, port %d", host,
|
|
port);
|
|
if (lock)
|
|
g_mutex_unlock (&sink->client_lock);
|
|
return;
|
|
}
|
|
}
|
|
|
|
void
|
|
gst_multiudpsink_add (GstMultiUDPSink * sink, const gchar * host, gint port)
|
|
{
|
|
gst_multiudpsink_add_internal (sink, host, port, TRUE);
|
|
}
|
|
|
|
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;
|
|
|
|
client = (GstUDPClient *) find->data;
|
|
|
|
GST_DEBUG_OBJECT (sink, "found %d clients with host %s, port %d",
|
|
client->refcount, host, port);
|
|
|
|
client->refcount--;
|
|
if (client->refcount == 0) {
|
|
GInetSocketAddress *saddr = G_INET_SOCKET_ADDRESS (client->addr);
|
|
GInetAddress *addr = g_inet_socket_address_get_address (saddr);
|
|
|
|
GST_DEBUG_OBJECT (sink, "remove client with host %s, port %d", host, port);
|
|
|
|
g_get_current_time (&now);
|
|
client->disconnect_time = GST_TIMEVAL_TO_TIME (now);
|
|
|
|
if (sink->used_socket && sink->auto_multicast
|
|
&& g_inet_address_get_is_multicast (addr)) {
|
|
GError *err = NULL;
|
|
|
|
if (!g_socket_leave_multicast_group (sink->used_socket, addr, FALSE,
|
|
sink->multi_iface, &err)) {
|
|
GST_DEBUG_OBJECT (sink, "Failed to leave multicast group: %s",
|
|
err->message);
|
|
g_clear_error (&err);
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_multiudpsink_clear_internal (GstMultiUDPSink * sink, gboolean lock)
|
|
{
|
|
GST_DEBUG_OBJECT (sink, "clearing");
|
|
/* we only need to remove the client structure, there is no additional
|
|
* socket or anything to free for UDP */
|
|
if (lock)
|
|
g_mutex_lock (&sink->client_lock);
|
|
g_list_foreach (sink->clients, (GFunc) free_client, sink);
|
|
g_list_free (sink->clients);
|
|
sink->clients = NULL;
|
|
if (lock)
|
|
g_mutex_unlock (&sink->client_lock);
|
|
}
|
|
|
|
void
|
|
gst_multiudpsink_clear (GstMultiUDPSink * sink)
|
|
{
|
|
gst_multiudpsink_clear_internal (sink, TRUE);
|
|
}
|
|
|
|
GstStructure *
|
|
gst_multiudpsink_get_stats (GstMultiUDPSink * sink, const gchar * host,
|
|
gint port)
|
|
{
|
|
GstUDPClient *client;
|
|
GstStructure *result = NULL;
|
|
GstUDPClient udpclient;
|
|
GList *find;
|
|
|
|
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 = gst_structure_new_empty ("multiudpsink-stats");
|
|
|
|
gst_structure_set (result,
|
|
"bytes-sent", G_TYPE_UINT64, client->bytes_sent,
|
|
"packets-sent", G_TYPE_UINT64, client->packets_sent,
|
|
"connect-time", G_TYPE_UINT64, client->connect_time,
|
|
"disconnect-time", G_TYPE_UINT64, client->disconnect_time, NULL);
|
|
|
|
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 gst_structure_new_empty ("multiudpsink-stats");
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_multiudpsink_unlock (GstBaseSink * bsink)
|
|
{
|
|
GstMultiUDPSink *sink;
|
|
|
|
sink = GST_MULTIUDPSINK (bsink);
|
|
|
|
g_cancellable_cancel (sink->cancellable);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_multiudpsink_unlock_stop (GstBaseSink * bsink)
|
|
{
|
|
GstMultiUDPSink *sink;
|
|
|
|
sink = GST_MULTIUDPSINK (bsink);
|
|
|
|
g_cancellable_reset (sink->cancellable);
|
|
|
|
return TRUE;
|
|
}
|