gstmultiudpsink.h 4.92 KB
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/* GStreamer
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 * Copyright (C) <2005> Wim Taymans <wim@fluendo.com>
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 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
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 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA 02110-1301, USA.
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 */

#ifndef __GST_MULTIUDPSINK_H__
#define __GST_MULTIUDPSINK_H__

#include <gst/gst.h>
#include <gst/base/gstbasesink.h>
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#include <gio/gio.h>
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G_BEGIN_DECLS

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#include "gstudpnetutils.h"
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#define GST_TYPE_MULTIUDPSINK            (gst_multiudpsink_get_type())
#define GST_MULTIUDPSINK(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MULTIUDPSINK,GstMultiUDPSink))
#define GST_MULTIUDPSINK_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MULTIUDPSINK,GstMultiUDPSinkClass))
#define GST_IS_MULTIUDPSINK(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MULTIUDPSINK))
#define GST_IS_MULTIUDPSINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MULTIUDPSINK))
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#define GST_MULTIUDPSINK_CAST(obj)       ((GstMultiUDPSink*)(obj))
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typedef struct _GstMultiUDPSink GstMultiUDPSink;
typedef struct _GstMultiUDPSinkClass GstMultiUDPSinkClass;

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#if GLIB_CHECK_VERSION (2, 43, 2)
#define HAVE_G_SOCKET_SEND_MESSAGES
#endif

#ifndef HAVE_G_SOCKET_SEND_MESSAGES
/* same as GOutputMessage used for g_socket_send_messages() */
typedef struct {
  /*< private >*/
  GSocketAddress         *address;

  GOutputVector          *vectors;
  guint                   num_vectors;

  guint                   bytes_sent;

  GSocketControlMessage **control_messages;
  guint                   num_control_messages;
} GstOutputMessage;
#else
typedef GOutputMessage GstOutputMessage;
#endif /* HAVE_G_SOCKET_SEND_MESSAGES*/

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typedef struct {
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  gint ref_count;         /* for memory management */
  gint add_count;         /* how often this address has been added */
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  GSocketAddress *addr;
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  gchar *host;
  gint port;
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  /* Per-client stats */
  guint64 bytes_sent;
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  guint64 packets_sent;
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  guint64 connect_time;
  guint64 disconnect_time;
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} GstUDPClient;

/* sends udp packets to multiple host/port pairs.
 */
struct _GstMultiUDPSink {
  GstBaseSink parent;

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  GSocket       *used_socket, *used_socket_v6;
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  GCancellable  *cancellable;
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  gboolean       made_cancel_fd;
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  /* client management */
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  GMutex         client_lock;
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  GList         *clients;
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  guint          num_v4_unique;  /* number IPv4 clients (excluding duplicates) */
  guint          num_v4_all;     /* number IPv4 clients (including duplicates) */
  guint          num_v6_unique;  /* number IPv6 clients (excluding duplicates) */
  guint          num_v6_all;     /* number IPv6 clients (including duplicates) */
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  GList         *clients_to_be_removed;
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  /* pre-allocated scrap space for render function */
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  GOutputVector    *vecs;
  guint             n_vecs;
  GstMapInfo       *maps;
  guint             n_maps;
  GstOutputMessage *messages;
  guint             n_messages;
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  /* properties */
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  guint64        bytes_to_serve;
  guint64        bytes_served;
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  GSocket       *socket, *socket_v6;
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  gboolean       close_socket;
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  gboolean       external_socket;
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  gboolean       auto_multicast;
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  gchar         *multi_iface;
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  gint           ttl;
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  gint           ttl_mc;
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  gboolean       loop;
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  gboolean       force_ipv4;
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  gint           qos_dscp;
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  gboolean       send_duplicates;
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  gint           buffer_size;
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  gchar         *bind_address;
  gint           bind_port;
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};

struct _GstMultiUDPSinkClass {
  GstBaseSinkClass parent_class;

  /* element methods */
  void          (*add)          (GstMultiUDPSink *sink, const gchar *host, gint port);
  void          (*remove)       (GstMultiUDPSink *sink, const gchar *host, gint port);
  void          (*clear)        (GstMultiUDPSink *sink);
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  GstStructure* (*get_stats)    (GstMultiUDPSink *sink, const gchar *host, gint port);
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  /* signals */
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  void          (*client_added) (GstElement *element, const gchar *host, gint port);
  void          (*client_removed) (GstElement *element, const gchar *host, gint port);
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};

GType gst_multiudpsink_get_type(void);

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void            gst_multiudpsink_add            (GstMultiUDPSink *sink, const gchar *host, gint port);
void            gst_multiudpsink_remove         (GstMultiUDPSink *sink, const gchar *host, gint port);
void            gst_multiudpsink_clear          (GstMultiUDPSink *sink);
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GstStructure*   gst_multiudpsink_get_stats      (GstMultiUDPSink *sink, const gchar *host, gint port);
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G_END_DECLS

#endif /* __GST_MULTIUDPSINK_H__ */