gstreamer/plugins/elements/gstmultiqueue.h
Tim-Philipp Müller 434e7042d8 base: make GstDataQueue private API for multiqueue
There's no code that uses it other than multiqueue, so make it private
to multiqueue for now. That way we can also do optimisations that
require API/ABI breaks. If anyone ever wants to use it, we can still
make it public again.
2011-10-07 13:54:37 +01:00

92 lines
2.6 KiB
C

/* GStreamer
* Copyright (C) 2006 Edward Hervey <edward@fluendo.com>
*
* gstmultiqueue.h:
*
* 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_MULTI_QUEUE_H__
#define __GST_MULTI_QUEUE_H__
#include <gst/gst.h>
#include "gstdataqueue.h"
G_BEGIN_DECLS
#define GST_TYPE_MULTI_QUEUE \
(gst_multi_queue_get_type())
#define GST_MULTI_QUEUE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MULTI_QUEUE,GstMultiQueue))
#define GST_MULTI_QUEUE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MULTI_QUEUE,GstMultiQueueClass))
#define GST_IS_MULTI_QUEUE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MULTI_QUEUE))
#define GST_IS_MULTI_QUEUE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MULTI_QUEUE))
typedef struct _GstMultiQueue GstMultiQueue;
typedef struct _GstMultiQueueClass GstMultiQueueClass;
/**
* GstMultiQueue:
*
* Opaque #GstMultiQueue structure.
*/
struct _GstMultiQueue {
GstElement element;
gboolean sync_by_running_time;
/* number of queues */
guint nbqueues;
/* The list of individual queues */
GList *queues;
guint32 queues_cookie;
GstDataQueueSize max_size, extra_size;
gboolean use_buffering;
gint low_percent, high_percent;
gboolean buffering;
gint percent;
guint32 counter; /* incoming object counter, use atomic accesses */
guint32 highid; /* contains highest id of last outputted object */
GstClockTime high_time; /* highest start running time */
GMutex * qlock; /* Global queue lock (vs object lock or individual */
/* queues lock). Protects nbqueues, queues, global */
/* GstMultiQueueSize, counter and highid */
gint numwaiting; /* number of not-linked pads waiting */
};
struct _GstMultiQueueClass {
GstElementClass parent_class;
/* signals emitted when ALL queues are either full or empty */
void (*underrun) (GstMultiQueue *queue);
void (*overrun) (GstMultiQueue *queue);
};
GType gst_multi_queue_get_type (void);
G_END_DECLS
#endif /* __GST_MULTI_QUEUE_H__ */