gstreamer/gst/tcp/gstmultifdsink.h

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2004> Thomas Vander Stichele <thomas at apestaart dot org>
*
* 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
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_MULTIFDSINK_H__
#define __GST_MULTIFDSINK_H__
#include <gst/gst.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <arpa/inet.h>
#include "gsttcp.h"
#define GST_TYPE_MULTIFDSINK \
(gst_multifdsink_get_type())
#define GST_MULTIFDSINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MULTIFDSINK,GstMultiFdSink))
#define GST_MULTIFDSINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MULTIFDSINK,GstMultiFdSink))
#define GST_IS_MULTIFDSINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MULTIFDSINK))
#define GST_IS_MULTIFDSINK_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MULTIFDSINK))
#define GST_MULTIFDSINK_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_MULTIFDSINK, GstMultiFdSinkClass))
typedef struct _GstMultiFdSink GstMultiFdSink;
typedef struct _GstMultiFdSinkClass GstMultiFdSinkClass;
typedef enum {
GST_MULTIFDSINK_OPEN = GST_ELEMENT_FLAG_LAST,
GST_MULTIFDSINK_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2,
} GstMultiFdSinkFlags;
typedef enum
{
GST_RECOVER_POLICY_NONE,
GST_RECOVER_POLICY_RESYNC_START,
GST_RECOVER_POLICY_RESYNC_SOFT,
GST_RECOVER_POLICY_RESYNC_KEYFRAME,
} GstRecoverPolicy;
/* structure for a client
* */
typedef struct {
int fd;
gint bufpos; /* position of this client in the global queue */
GList *sending; /* the buffers we need to send */
gint bufoffset; /* offset in the first buffer */
gboolean discont;
GstTCPProtocolType protocol;
gboolean caps_sent;
gboolean streamheader_sent;
/* stats */
guint64 bytes_sent;
guint64 connect_time;
guint64 disconnect_time;
guint64 last_activity_time;
guint64 dropped_buffers;
guint64 avg_queue_size;
} GstTCPClient;
struct _GstMultiFdSink {
GstElement element;
/* pad */
GstPad *sinkpad;
guint64 bytes_to_serve; /* how much bytes we must serve */
guint64 bytes_served; /* how much bytes have we served */
GMutex *clientslock; /* lock to protect the clients list */
GList *clients; /* list of clients we are serving */
fd_set readfds; /* all the client file descriptors that we can read from */
fd_set writefds; /* all the client file descriptors that we can write to */
int control_sock[2]; /* sockets for controlling the select call */
GList *streamheader; /* GList of GstBuffers to use as streamheader */
GstTCPProtocolType protocol;
guint mtu;
GArray *bufqueue; /* global queue of buffers */
gboolean running; /* the thread state */
GThread *thread; /* the sender thread */
gint buffers_max; /* max buffers to queue */
gint buffers_soft_max; /* max buffers a client can lag before recovery starts */
GstRecoverPolicy recover_policy;
GstClockTime timeout; /* max amount of nanoseconds to remain idle */
/* stats */
gint buffers_queued; /* number of queued buffers */
};
struct _GstMultiFdSinkClass {
GstElementClass parent_class;
/* element methods */
void (*add) (GstMultiFdSink *sink, int fd);
void (*remove) (GstMultiFdSink *sink, int fd);
void (*clear) (GstMultiFdSink *sink);
GValueArray* (*get_stats) (GstMultiFdSink *sink, int fd);
/* vtable */
gboolean (*init) (GstMultiFdSink *sink);
gboolean (*select) (GstMultiFdSink *sink, fd_set *readfds, fd_set *writefds);
gboolean (*close) (GstMultiFdSink *sink);
/* signals */
void (*client_added) (GstElement *element, gchar *host, gint fd);
void (*client_removed) (GstElement *element, gchar *host, gint fd);
};
GType gst_multifdsink_get_type (void);
void gst_multifdsink_add (GstMultiFdSink *sink, int fd);
void gst_multifdsink_remove (GstMultiFdSink *sink, int fd);
void gst_multifdsink_clear (GstMultiFdSink *sink);
GValueArray* gst_multifdsink_get_stats (GstMultiFdSink *sink, int fd);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_MULTIFDSINK_H__ */