2 * Copyright (C) 2006 Edward Hervey <edward@fluendo.com>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
23 #ifndef __GST_MULTI_QUEUE_H__
24 #define __GST_MULTI_QUEUE_H__
27 #include <gst/base/gstdataqueue.h>
31 #define GST_TYPE_MULTI_QUEUE \
32 (gst_multi_queue_get_type())
33 #define GST_MULTI_QUEUE(obj) \
34 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MULTI_QUEUE,GstMultiQueue))
35 #define GST_MULTI_QUEUE_CLASS(klass) \
36 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MULTI_QUEUE,GstMultiQueueClass))
37 #define GST_IS_MULTI_QUEUE(obj) \
38 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MULTI_QUEUE))
39 #define GST_IS_MULTI_QUEUE_CLASS(obj) \
40 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MULTI_QUEUE))
42 typedef struct _GstMultiQueue GstMultiQueue;
43 typedef struct _GstMultiQueueClass GstMultiQueueClass;
48 * Opaque #GstMultiQueue structure.
50 struct _GstMultiQueue {
53 gboolean sync_by_running_time;
55 /* number of queues */
58 /* The list of individual queues */
60 guint32 queues_cookie;
62 GstDataQueueSize max_size, extra_size;
63 gboolean use_buffering;
64 gint low_percent, high_percent;
68 guint counter; /* incoming object counter, use atomic accesses */
69 guint32 highid; /* contains highest id of last outputted object */
70 GstClockTime high_time; /* highest start running time */
72 GMutex qlock; /* Global queue lock (vs object lock or individual */
73 /* queues lock). Protects nbqueues, queues, global */
74 /* GstMultiQueueSize, counter and highid */
76 gint numwaiting; /* number of not-linked pads waiting */
79 struct _GstMultiQueueClass {
80 GstElementClass parent_class;
82 /* signals emitted when ALL queues are either full or empty */
83 void (*underrun) (GstMultiQueue *queue);
84 void (*overrun) (GstMultiQueue *queue);
87 G_GNUC_INTERNAL GType gst_multi_queue_get_type (void);
92 #endif /* __GST_MULTI_QUEUE_H__ */