mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1284 lines
38 KiB
C
1284 lines
38 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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*
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, 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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#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 <stdio.h>
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#include <stdlib.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <errno.h>
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#include <string.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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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_SOCKFD -1
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#define DEFAULT_CLOSEFD TRUE
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#define DEFAULT_SOCK -1
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#define DEFAULT_CLIENTS NULL
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#define DEFAULT_FAMILY 0
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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_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_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_SOCKFD,
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PROP_CLOSEFD,
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PROP_SOCK,
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PROP_CLIENTS,
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PROP_AUTO_MULTICAST,
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PROP_TTL,
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PROP_TTL_MC,
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PROP_LOOP,
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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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#define CLOSE_IF_REQUESTED(udpctx) \
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G_STMT_START { \
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if ((!udpctx->externalfd) || (udpctx->externalfd && udpctx->closefd)) { \
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CLOSE_SOCKET(udpctx->sock); \
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if (udpctx->sock == udpctx->sockfd) \
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udpctx->sockfd = DEFAULT_SOCKFD; \
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} \
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udpctx->sock = DEFAULT_SOCK; \
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} G_STMT_END
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static void gst_multiudpsink_base_init (gpointer g_class);
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static void gst_multiudpsink_class_init (GstMultiUDPSinkClass * klass);
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static void gst_multiudpsink_init (GstMultiUDPSink * udpsink);
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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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#ifndef G_OS_WIN32 /* sendmsg() is not available on Windows */
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static GstFlowReturn gst_multiudpsink_render_list (GstBaseSink * bsink,
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GstBufferList * list);
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#endif
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static GstStateChangeReturn gst_multiudpsink_change_state (GstElement *
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element, GstStateChange transition);
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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 GstElementClass *parent_class = NULL;
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static guint gst_multiudpsink_signals[LAST_SIGNAL] = { 0 };
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GType
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gst_multiudpsink_get_type (void)
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{
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static GType multiudpsink_type = 0;
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if (!multiudpsink_type) {
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static const GTypeInfo multiudpsink_info = {
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sizeof (GstMultiUDPSinkClass),
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gst_multiudpsink_base_init,
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NULL,
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(GClassInitFunc) gst_multiudpsink_class_init,
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NULL,
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NULL,
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sizeof (GstMultiUDPSink),
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0,
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(GInstanceInitFunc) gst_multiudpsink_init,
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NULL
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};
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multiudpsink_type =
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g_type_register_static (GST_TYPE_BASE_SINK, "GstMultiUDPSink",
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&multiudpsink_info, 0);
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}
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return multiudpsink_type;
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}
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static void
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gst_multiudpsink_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_template));
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gst_element_class_set_details_simple (element_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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}
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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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parent_class = g_type_class_peek_parent (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), G_SIGNAL_RUN_LAST,
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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), G_SIGNAL_RUN_LAST,
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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), G_SIGNAL_RUN_LAST,
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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 GValueArray of uint64: 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), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstMultiUDPSinkClass, get_stats),
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NULL, NULL, gst_udp_marshal_BOXED__STRING_INT, G_TYPE_VALUE_ARRAY, 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 send 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_SOCKFD,
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g_param_spec_int ("sockfd", "Socket Handle",
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"Socket to use for UDP sending. (-1 == allocate)",
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-1, G_MAXINT, DEFAULT_SOCKFD,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_CLOSEFD,
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g_param_spec_boolean ("closefd", "Close sockfd",
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"Close sockfd if passed as property on state change",
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DEFAULT_CLOSEFD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SOCK,
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g_param_spec_int ("sock", "Socket Handle",
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"Socket currently in use for UDP sending. (-1 == no socket)",
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-1, G_MAXINT, DEFAULT_SOCK,
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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_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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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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gstelement_class->change_state = gst_multiudpsink_change_state;
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gstbasesink_class->render = gst_multiudpsink_render;
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#ifndef G_OS_WIN32
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gstbasesink_class->render_list = gst_multiudpsink_render_list;
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#endif
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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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WSA_STARTUP (sink);
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sink->client_lock = g_mutex_new ();
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sink->sock = DEFAULT_SOCK;
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sink->sockfd = DEFAULT_SOCKFD;
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sink->closefd = DEFAULT_CLOSEFD;
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sink->externalfd = (sink->sockfd != -1);
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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->qos_dscp = DEFAULT_QOS_DSCP;
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sink->ss_family = DEFAULT_FAMILY;
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sink->send_duplicates = DEFAULT_SEND_DUPLICATES;
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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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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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return client;
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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_free (client->host);
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g_slice_free (GstUDPClient, client);
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}
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static gint
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client_compare (GstUDPClient * a, GstUDPClient * b)
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{
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if ((a->port == b->port) && (strcmp (a->host, b->host) == 0))
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return 0;
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return 1;
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}
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static void
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gst_multiudpsink_finalize (GObject * object)
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{
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GstMultiUDPSink *sink;
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sink = GST_MULTIUDPSINK (object);
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g_list_foreach (sink->clients, (GFunc) free_client, NULL);
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g_list_free (sink->clients);
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if (sink->sockfd >= 0 && sink->closefd)
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CLOSE_SOCKET (sink->sockfd);
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g_mutex_free (sink->client_lock);
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WSA_CLEANUP (object);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gboolean
|
|
socket_error_is_ignorable (void)
|
|
{
|
|
#ifdef G_OS_WIN32
|
|
/* Windows doesn't seem to have an EAGAIN for sockets */
|
|
return WSAGetLastError () == WSAEINTR;
|
|
#else
|
|
return errno == EINTR || errno == EAGAIN;
|
|
#endif
|
|
}
|
|
|
|
static int
|
|
socket_last_error_code (void)
|
|
{
|
|
#ifdef G_OS_WIN32
|
|
return WSAGetLastError ();
|
|
#else
|
|
return errno;
|
|
#endif
|
|
}
|
|
|
|
static gchar *
|
|
socket_last_error_message (void)
|
|
{
|
|
#ifdef G_OS_WIN32
|
|
int errorcode = WSAGetLastError ();
|
|
wchar_t buf[1024];
|
|
DWORD result =
|
|
FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
|
|
NULL, errorcode, 0, (LPSTR) buf, sizeof (buf) / sizeof (wchar_t), NULL);
|
|
if (FAILED (result)) {
|
|
return g_strdup ("failed to get error message from system");
|
|
} else {
|
|
gchar *res =
|
|
g_convert ((gchar *) buf, -1, "UTF-16", "UTF-8", NULL, NULL, NULL);
|
|
/* g_convert() internally calls windows functions which reset the
|
|
windows error code, so fix it up again like this */
|
|
WSASetLastError (errorcode);
|
|
return res;
|
|
}
|
|
#else
|
|
return g_strdup (g_strerror (errno));
|
|
#endif
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_multiudpsink_render (GstBaseSink * bsink, GstBuffer * buffer)
|
|
{
|
|
GstMultiUDPSink *sink;
|
|
gint ret, size, num = 0, no_clients = 0;
|
|
guint8 *data;
|
|
GList *clients;
|
|
gint len;
|
|
|
|
sink = GST_MULTIUDPSINK (bsink);
|
|
|
|
size = GST_BUFFER_SIZE (buffer);
|
|
data = GST_BUFFER_DATA (buffer);
|
|
|
|
sink->bytes_to_serve += size;
|
|
|
|
/* grab lock while iterating and sending to clients, this should be
|
|
* fast as UDP never blocks */
|
|
g_mutex_lock (sink->client_lock);
|
|
GST_LOG_OBJECT (bsink, "about to send %d bytes", size);
|
|
|
|
for (clients = sink->clients; clients; clients = g_list_next (clients)) {
|
|
GstUDPClient *client;
|
|
gint count;
|
|
|
|
client = (GstUDPClient *) clients->data;
|
|
no_clients++;
|
|
GST_LOG_OBJECT (sink, "sending %d bytes to client %p", size, client);
|
|
|
|
count = sink->send_duplicates ? client->refcount : 1;
|
|
|
|
while (count--) {
|
|
while (TRUE) {
|
|
len = gst_udp_get_sockaddr_length (&client->theiraddr);
|
|
|
|
ret = sendto (*client->sock,
|
|
#ifdef G_OS_WIN32
|
|
(char *) data,
|
|
#else
|
|
data,
|
|
#endif
|
|
size, 0, (struct sockaddr *) &client->theiraddr, len);
|
|
|
|
if (ret < 0) {
|
|
/* some error, just warn, it's likely recoverable and we don't want to
|
|
* break streaming. We break so that we stop retrying for this client. */
|
|
if (!socket_error_is_ignorable ()) {
|
|
gchar *errormessage = socket_last_error_message ();
|
|
GST_WARNING_OBJECT (sink, "client %p gave error %d (%s)", client,
|
|
socket_last_error_code (), errormessage);
|
|
g_free (errormessage);
|
|
break;
|
|
}
|
|
} else {
|
|
num++;
|
|
client->bytes_sent += ret;
|
|
client->packets_sent++;
|
|
sink->bytes_served += ret;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
g_mutex_unlock (sink->client_lock);
|
|
|
|
GST_LOG_OBJECT (sink, "sent %d bytes to %d (of %d) clients", size, num,
|
|
no_clients);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
#ifndef G_OS_WIN32
|
|
static GstFlowReturn
|
|
gst_multiudpsink_render_list (GstBaseSink * bsink, GstBufferList * list)
|
|
{
|
|
GstMultiUDPSink *sink;
|
|
GList *clients;
|
|
gint ret, size = 0, num = 0, no_clients = 0;
|
|
struct iovec *iov;
|
|
struct msghdr msg = { 0 };
|
|
|
|
GstBufferListIterator *it;
|
|
guint gsize;
|
|
GstBuffer *buf;
|
|
|
|
sink = GST_MULTIUDPSINK (bsink);
|
|
|
|
g_return_val_if_fail (list != NULL, GST_FLOW_ERROR);
|
|
|
|
it = gst_buffer_list_iterate (list);
|
|
g_return_val_if_fail (it != NULL, GST_FLOW_ERROR);
|
|
|
|
while (gst_buffer_list_iterator_next_group (it)) {
|
|
msg.msg_iovlen = 0;
|
|
size = 0;
|
|
|
|
if ((gsize = gst_buffer_list_iterator_n_buffers (it)) == 0) {
|
|
goto invalid_list;
|
|
}
|
|
|
|
iov = (struct iovec *) g_malloc (gsize * sizeof (struct iovec));
|
|
msg.msg_iov = iov;
|
|
|
|
while ((buf = gst_buffer_list_iterator_next (it))) {
|
|
msg.msg_iov[msg.msg_iovlen].iov_len = GST_BUFFER_SIZE (buf);
|
|
msg.msg_iov[msg.msg_iovlen].iov_base = GST_BUFFER_DATA (buf);
|
|
msg.msg_iovlen++;
|
|
size += GST_BUFFER_SIZE (buf);
|
|
}
|
|
|
|
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 %d bytes", size);
|
|
|
|
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 %d bytes to client %p", size, client);
|
|
|
|
count = sink->send_duplicates ? client->refcount : 1;
|
|
|
|
while (count--) {
|
|
while (TRUE) {
|
|
msg.msg_name = (void *) &client->theiraddr;
|
|
msg.msg_namelen = sizeof (client->theiraddr);
|
|
ret = sendmsg (*client->sock, &msg, 0);
|
|
|
|
if (ret < 0) {
|
|
if (!socket_error_is_ignorable ()) {
|
|
break;
|
|
}
|
|
} else {
|
|
num++;
|
|
client->bytes_sent += ret;
|
|
client->packets_sent++;
|
|
sink->bytes_served += ret;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
g_mutex_unlock (sink->client_lock);
|
|
|
|
g_free (iov);
|
|
msg.msg_iov = NULL;
|
|
|
|
GST_LOG_OBJECT (sink, "sent %d bytes to %d (of %d) clients", size, num,
|
|
no_clients);
|
|
}
|
|
|
|
gst_buffer_list_iterator_free (it);
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
invalid_list:
|
|
gst_buffer_list_iterator_free (it);
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
#endif
|
|
|
|
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;
|
|
gint port = 0;
|
|
|
|
host = clients[i];
|
|
p = strstr (clients[i], ":");
|
|
if (p != NULL) {
|
|
*p = '\0';
|
|
port = atoi (p + 1);
|
|
}
|
|
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)
|
|
{
|
|
gint tos;
|
|
|
|
/* don't touch on -1 */
|
|
if (sink->qos_dscp < 0)
|
|
return;
|
|
|
|
if (sink->sock < 0)
|
|
return;
|
|
|
|
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 (sink->sock, IPPROTO_IP, IP_TOS, &tos, sizeof (tos)) < 0) {
|
|
gchar *errormessage = socket_last_error_message ();
|
|
GST_ERROR_OBJECT (sink, "could not set TOS: %s", errormessage);
|
|
g_free (errormessage);
|
|
}
|
|
#ifdef IPV6_TCLASS
|
|
if (setsockopt (sink->sock, IPPROTO_IPV6, IPV6_TCLASS, &tos,
|
|
sizeof (tos)) < 0) {
|
|
gchar *errormessage = socket_last_error_message ();
|
|
GST_ERROR_OBJECT (sink, "could not set TCLASS: %s", errormessage);
|
|
g_free (errormessage);
|
|
}
|
|
#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_SOCKFD:
|
|
if (udpsink->sockfd >= 0 && udpsink->sockfd != udpsink->sock &&
|
|
udpsink->closefd)
|
|
CLOSE_SOCKET (udpsink->sockfd);
|
|
udpsink->sockfd = g_value_get_int (value);
|
|
GST_DEBUG_OBJECT (udpsink, "setting SOCKFD to %d", udpsink->sockfd);
|
|
break;
|
|
case PROP_CLOSEFD:
|
|
udpsink->closefd = 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_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_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_SOCKFD:
|
|
g_value_set_int (value, udpsink->sockfd);
|
|
break;
|
|
case PROP_CLOSEFD:
|
|
g_value_set_boolean (value, udpsink->closefd);
|
|
break;
|
|
case PROP_SOCK:
|
|
g_value_set_int (value, udpsink->sock);
|
|
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_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_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)
|
|
{
|
|
GST_DEBUG_OBJECT (sink, "configuring client %p", client);
|
|
|
|
if (gst_udp_is_multicast (&client->theiraddr)) {
|
|
GST_DEBUG_OBJECT (sink, "we have a multicast client %p", client);
|
|
if (sink->auto_multicast) {
|
|
GST_DEBUG_OBJECT (sink, "autojoining group");
|
|
if (gst_udp_join_group (*(client->sock), &client->theiraddr, NULL)
|
|
!= 0)
|
|
goto join_group_failed;
|
|
}
|
|
GST_DEBUG_OBJECT (sink, "setting loop to %d", sink->loop);
|
|
if (gst_udp_set_loop (sink->sock, sink->ss_family, sink->loop) != 0)
|
|
goto loop_failed;
|
|
GST_DEBUG_OBJECT (sink, "setting ttl to %d", sink->ttl_mc);
|
|
if (gst_udp_set_ttl (sink->sock, sink->ss_family, sink->ttl_mc, TRUE) != 0)
|
|
goto ttl_failed;
|
|
} else {
|
|
GST_DEBUG_OBJECT (sink, "setting unicast ttl to %d", sink->ttl);
|
|
if (gst_udp_set_ttl (sink->sock, sink->ss_family, sink->ttl, FALSE) != 0)
|
|
goto ttl_failed;
|
|
}
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
join_group_failed:
|
|
{
|
|
gchar *errormessage = socket_last_error_message ();
|
|
int errorcode = socket_last_error_code ();
|
|
CLOSE_IF_REQUESTED (sink);
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
|
|
("Could not join multicast group (%d): %s", errorcode, errormessage));
|
|
g_free (errormessage);
|
|
return FALSE;
|
|
}
|
|
ttl_failed:
|
|
{
|
|
gchar *errormessage = socket_last_error_message ();
|
|
int errorcode = socket_last_error_code ();
|
|
CLOSE_IF_REQUESTED (sink);
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
|
|
("Could not set TTL socket option (%d): %s", errorcode, errormessage));
|
|
g_free (errormessage);
|
|
return FALSE;
|
|
}
|
|
loop_failed:
|
|
{
|
|
gchar *errormessage = socket_last_error_message ();
|
|
int errorcode = socket_last_error_code ();
|
|
CLOSE_IF_REQUESTED (sink);
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
|
|
("Could not set loopback socket option (%d): %s",
|
|
errorcode, errormessage));
|
|
g_free (errormessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* create a socket for sending to remote machine */
|
|
static gboolean
|
|
gst_multiudpsink_init_send (GstMultiUDPSink * sink)
|
|
{
|
|
guint bc_val;
|
|
GList *clients;
|
|
GstUDPClient *client;
|
|
int sndsize, ret;
|
|
#ifdef G_OS_WIN32
|
|
gint len;
|
|
#else
|
|
guint len;
|
|
#endif
|
|
|
|
if (sink->sockfd == -1) {
|
|
GST_DEBUG_OBJECT (sink, "creating sockets");
|
|
/* create sender socket try IP6, fall back to IP4 */
|
|
sink->ss_family = AF_INET6;
|
|
if ((sink->sock = socket (AF_INET6, SOCK_DGRAM, 0)) == -1) {
|
|
sink->ss_family = AF_INET;
|
|
if ((sink->sock = socket (AF_INET, SOCK_DGRAM, 0)) == -1)
|
|
goto no_socket;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (sink, "have socket");
|
|
sink->externalfd = FALSE;
|
|
} else {
|
|
struct sockaddr_storage myaddr;
|
|
|
|
GST_DEBUG_OBJECT (sink, "using configured socket");
|
|
/* we use the configured socket, try to get some info about it */
|
|
len = sizeof (myaddr);
|
|
if (getsockname (sink->sockfd, (struct sockaddr *) &myaddr, &len) < 0)
|
|
goto getsockname_error;
|
|
|
|
sink->ss_family = myaddr.ss_family;
|
|
/* we use the configured socket */
|
|
sink->sock = sink->sockfd;
|
|
sink->externalfd = TRUE;
|
|
}
|
|
|
|
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 (sink->sockfd, 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 (%d)",
|
|
sndsize, ret, g_strerror (errno), errno));
|
|
}
|
|
}
|
|
|
|
/* read the value of the receive buffer. Note that on linux this returns 2x the
|
|
* value we set because the kernel allocates extra memory for metadata.
|
|
* The default on Linux is about 100K (which is about 50K without metadata) */
|
|
ret =
|
|
getsockopt (sink->sockfd, 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");
|
|
|
|
|
|
bc_val = 1;
|
|
if (setsockopt (sink->sock, SOL_SOCKET, SO_BROADCAST, &bc_val,
|
|
sizeof (bc_val)) < 0)
|
|
goto no_broadcast;
|
|
|
|
sink->bytes_to_serve = 0;
|
|
sink->bytes_served = 0;
|
|
|
|
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:
|
|
{
|
|
gchar *errormessage = socket_last_error_message ();
|
|
int errorcode = socket_last_error_code ();
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (NULL),
|
|
("Could not create socket (%d): %s", errorcode, errormessage));
|
|
g_free (errormessage);
|
|
return FALSE;
|
|
}
|
|
getsockname_error:
|
|
{
|
|
gchar *errormessage = socket_last_error_message ();
|
|
int errorcode = socket_last_error_code ();
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, FAILED, (NULL),
|
|
("Could not getsockname (%d): %s", errorcode, errormessage));
|
|
g_free (errormessage);
|
|
return FALSE;
|
|
}
|
|
no_broadcast:
|
|
{
|
|
gchar *errormessage = socket_last_error_message ();
|
|
int errorcode = socket_last_error_code ();
|
|
CLOSE_IF_REQUESTED (sink);
|
|
GST_ELEMENT_ERROR (sink, RESOURCE, SETTINGS, (NULL),
|
|
("Could not set broadcast socket option (%d): %s",
|
|
errorcode, errormessage));
|
|
g_free (errormessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_multiudpsink_close (GstMultiUDPSink * sink)
|
|
{
|
|
CLOSE_IF_REQUESTED (sink);
|
|
}
|
|
|
|
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);
|
|
|
|
client->sock = &sink->sock;
|
|
|
|
if (gst_udp_get_addr (host, port, &client->theiraddr) < 0)
|
|
goto getaddrinfo_error;
|
|
|
|
g_get_current_time (&now);
|
|
client->connect_time = GST_TIMEVAL_TO_TIME (now);
|
|
|
|
if (*client->sock > 0) {
|
|
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 */
|
|
getaddrinfo_error:
|
|
{
|
|
GST_DEBUG_OBJECT (sink, "did not add client on host %s, port %d", host,
|
|
port);
|
|
GST_WARNING_OBJECT (sink, "getaddrinfo lookup error?");
|
|
free_client (client);
|
|
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) {
|
|
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 (*(client->sock) != -1 && sink->auto_multicast
|
|
&& gst_udp_is_multicast (&client->theiraddr))
|
|
gst_udp_leave_group (*(client->sock), &client->theiraddr);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
GValueArray *
|
|
gst_multiudpsink_get_stats (GstMultiUDPSink * sink, const gchar * host,
|
|
gint port)
|
|
{
|
|
GstUDPClient *client;
|
|
GValueArray *result = NULL;
|
|
GstUDPClient udpclient;
|
|
GList *find;
|
|
GValue value = { 0 };
|
|
|
|
udpclient.host = (gchar *) host;
|
|
udpclient.port = port;
|
|
|
|
g_mutex_lock (sink->client_lock);
|
|
|
|
find = g_list_find_custom (sink->clients, &udpclient,
|
|
(GCompareFunc) client_compare);
|
|
if (!find)
|
|
goto not_found;
|
|
|
|
GST_DEBUG_OBJECT (sink, "stats for client with host %s, port %d", host, port);
|
|
|
|
client = (GstUDPClient *) find->data;
|
|
|
|
/* Result is a value array of (bytes_sent, packets_sent,
|
|
* connect_time, disconnect_time), all as uint64 */
|
|
result = g_value_array_new (4);
|
|
|
|
g_value_init (&value, G_TYPE_UINT64);
|
|
g_value_set_uint64 (&value, client->bytes_sent);
|
|
result = g_value_array_append (result, &value);
|
|
g_value_unset (&value);
|
|
|
|
g_value_init (&value, G_TYPE_UINT64);
|
|
g_value_set_uint64 (&value, client->packets_sent);
|
|
result = g_value_array_append (result, &value);
|
|
g_value_unset (&value);
|
|
|
|
g_value_init (&value, G_TYPE_UINT64);
|
|
g_value_set_uint64 (&value, client->connect_time);
|
|
result = g_value_array_append (result, &value);
|
|
g_value_unset (&value);
|
|
|
|
g_value_init (&value, G_TYPE_UINT64);
|
|
g_value_set_uint64 (&value, client->disconnect_time);
|
|
result = g_value_array_append (result, &value);
|
|
g_value_unset (&value);
|
|
|
|
g_mutex_unlock (sink->client_lock);
|
|
|
|
return result;
|
|
|
|
/* ERRORS */
|
|
not_found:
|
|
{
|
|
g_mutex_unlock (sink->client_lock);
|
|
GST_WARNING_OBJECT (sink, "client with host %s, port %d not found",
|
|
host, port);
|
|
/* Apparently (see comment in gstmultifdsink.c) returning NULL from here may
|
|
* confuse/break python bindings */
|
|
return g_value_array_new (0);
|
|
}
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_multiudpsink_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstStateChangeReturn ret;
|
|
GstMultiUDPSink *sink;
|
|
|
|
sink = GST_MULTIUDPSINK (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
if (!gst_multiudpsink_init_send (sink))
|
|
goto no_init;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
gst_multiudpsink_close (sink);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
no_init:
|
|
{
|
|
/* _init_send() posted specific error already */
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
}
|