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., 51 Franklin St, Fifth Floor,
19 * Boston, MA 02110-1301, 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;
54 gboolean use_interleave;
56 /* number of queues */
59 /* The list of individual queues */
61 guint32 queues_cookie;
63 GstDataQueueSize max_size, extra_size;
64 gboolean use_buffering;
65 gint low_percent, high_percent;
69 guint counter; /* incoming object counter, use atomic accesses */
70 guint32 highid; /* contains highest id of last outputted object */
71 GstClockTimeDiff high_time; /* highest start running time */
73 GMutex qlock; /* Global queue lock (vs object lock or individual */
74 /* queues lock). Protects nbqueues, queues, global */
75 /* GstMultiQueueSize, counter and highid */
77 gint numwaiting; /* number of not-linked pads waiting */
79 gboolean percent_changed;
80 GMutex buffering_post_lock; /* assures only one posted at a time */
82 GstClockTime interleave; /* Input interleave */
83 GstClockTimeDiff last_interleave_update;
85 GstClockTime unlinked_cache_time;
88 struct _GstMultiQueueClass {
89 GstElementClass parent_class;
91 /* signals emitted when ALL queues are either full or empty */
92 void (*underrun) (GstMultiQueue *queue);
93 void (*overrun) (GstMultiQueue *queue);
96 G_GNUC_INTERNAL GType gst_multi_queue_get_type (void);
101 #endif /* __GST_MULTI_QUEUE_H__ */