| /* 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., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| |
| #ifndef __GST_MULTI_QUEUE_H__ |
| #define __GST_MULTI_QUEUE_H__ |
| |
| #include <gst/gst.h> |
| #include <gst/base/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; |
| |
| guint 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 */ |
| |
| gboolean percent_changed; |
| GMutex buffering_post_lock; /* assures only one posted at a time */ |
| }; |
| |
| struct _GstMultiQueueClass { |
| GstElementClass parent_class; |
| |
| /* signals emitted when ALL queues are either full or empty */ |
| void (*underrun) (GstMultiQueue *queue); |
| void (*overrun) (GstMultiQueue *queue); |
| }; |
| |
| G_GNUC_INTERNAL GType gst_multi_queue_get_type (void); |
| |
| G_END_DECLS |
| |
| |
| #endif /* __GST_MULTI_QUEUE_H__ */ |