1 /* GStreamer
2  * Copyright (C) <2005> Wim Taymans <wim@fluendo.com>
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Library General Public
6  * License as published by the Free Software Foundation; either
7  * version 2 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Library General Public License for more details.
13  *
14  * You should have received a copy of the GNU Library General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17  * Boston, MA 02110-1301, USA.
18  */
19 
20 #ifndef __GST_MULTIUDPSINK_H__
21 #define __GST_MULTIUDPSINK_H__
22 
23 #include <gst/gst.h>
24 #include <gst/base/gstbasesink.h>
25 #include <gio/gio.h>
26 
27 G_BEGIN_DECLS
28 
29 #include "gstudpnetutils.h"
30 
31 #define GST_TYPE_MULTIUDPSINK            (gst_multiudpsink_get_type())
32 #define GST_MULTIUDPSINK(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MULTIUDPSINK,GstMultiUDPSink))
33 #define GST_MULTIUDPSINK_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MULTIUDPSINK,GstMultiUDPSinkClass))
34 #define GST_IS_MULTIUDPSINK(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MULTIUDPSINK))
35 #define GST_IS_MULTIUDPSINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MULTIUDPSINK))
36 #define GST_MULTIUDPSINK_CAST(obj)       ((GstMultiUDPSink*)(obj))
37 
38 typedef struct _GstMultiUDPSink GstMultiUDPSink;
39 typedef struct _GstMultiUDPSinkClass GstMultiUDPSinkClass;
40 
41 #if GLIB_CHECK_VERSION (2, 43, 2)
42 #define HAVE_G_SOCKET_SEND_MESSAGES
43 #endif
44 
45 #ifndef HAVE_G_SOCKET_SEND_MESSAGES
46 /* same as GOutputMessage used for g_socket_send_messages() */
47 typedef struct {
48   /*< private >*/
49   GSocketAddress         *address;
50 
51   GOutputVector          *vectors;
52   guint                   num_vectors;
53 
54   guint                   bytes_sent;
55 
56   GSocketControlMessage **control_messages;
57   guint                   num_control_messages;
58 } GstOutputMessage;
59 #else
60 typedef GOutputMessage GstOutputMessage;
61 #endif /* HAVE_G_SOCKET_SEND_MESSAGES*/
62 
63 typedef struct {
64   gint ref_count;         /* for memory management */
65   gint add_count;         /* how often this address has been added */
66 
67   GSocketAddress *addr;
68   gchar *host;
69   gint port;
70 
71   /* Per-client stats */
72   guint64 bytes_sent;
73   guint64 packets_sent;
74   guint64 connect_time;
75   guint64 disconnect_time;
76 } GstUDPClient;
77 
78 /* sends udp packets to multiple host/port pairs.
79  */
80 struct _GstMultiUDPSink {
81   GstBaseSink parent;
82 
83   GSocket       *used_socket, *used_socket_v6;
84 
85   GCancellable  *cancellable;
86   gboolean       made_cancel_fd;
87 
88   /* client management */
89   GMutex         client_lock;
90   GList         *clients;
91   guint          num_v4_unique;  /* number IPv4 clients (excluding duplicates) */
92   guint          num_v4_all;     /* number IPv4 clients (including duplicates) */
93   guint          num_v6_unique;  /* number IPv6 clients (excluding duplicates) */
94   guint          num_v6_all;     /* number IPv6 clients (including duplicates) */
95   GList         *clients_to_be_removed;
96 
97   /* pre-allocated scrap space for render function */
98   GOutputVector    *vecs;
99   guint             n_vecs;
100   GstMapInfo       *maps;
101   guint             n_maps;
102   GstOutputMessage *messages;
103   guint             n_messages;
104 
105   /* properties */
106   guint64        bytes_to_serve;
107   guint64        bytes_served;
108   GSocket       *socket, *socket_v6;
109   gboolean       close_socket;
110 
111   gboolean       external_socket;
112 
113   gboolean       auto_multicast;
114   gchar         *multi_iface;
115   gint           ttl;
116   gint           ttl_mc;
117   gboolean       loop;
118   gboolean       force_ipv4;
119   gint           qos_dscp;
120 
121   gboolean       send_duplicates;
122   gint           buffer_size;
123   gchar         *bind_address;
124   gint           bind_port;
125 };
126 
127 struct _GstMultiUDPSinkClass {
128   GstBaseSinkClass parent_class;
129 
130   /* element methods */
131   void          (*add)          (GstMultiUDPSink *sink, const gchar *host, gint port);
132   void          (*remove)       (GstMultiUDPSink *sink, const gchar *host, gint port);
133   void          (*clear)        (GstMultiUDPSink *sink);
134   GstStructure* (*get_stats)    (GstMultiUDPSink *sink, const gchar *host, gint port);
135 
136   /* signals */
137   void          (*client_added) (GstElement *element, const gchar *host, gint port);
138   void          (*client_removed) (GstElement *element, const gchar *host, gint port);
139 };
140 
141 GType gst_multiudpsink_get_type(void);
142 
143 void            gst_multiudpsink_add            (GstMultiUDPSink *sink, const gchar *host, gint port);
144 void            gst_multiudpsink_remove         (GstMultiUDPSink *sink, const gchar *host, gint port);
145 void            gst_multiudpsink_clear          (GstMultiUDPSink *sink);
146 GstStructure*   gst_multiudpsink_get_stats      (GstMultiUDPSink *sink, const gchar *host, gint port);
147 
148 G_END_DECLS
149 
150 #endif /* __GST_MULTIUDPSINK_H__ */
151