renatofilho@787: /* GStreamer
renatofilho@787:  * Copyright (C) 2006 Edward Hervey <edward@fluendo.com>
renatofilho@787:  *
renatofilho@787:  * gstmultiqueue.h:
renatofilho@787:  *
renatofilho@787:  * This library is free software; you can redistribute it and/or
renatofilho@787:  * modify it under the terms of the GNU Library General Public
renatofilho@787:  * License as published by the Free Software Foundation; either
renatofilho@787:  * version 2 of the License, or (at your option) any later version.
renatofilho@787:  *
renatofilho@787:  * This library is distributed in the hope that it will be useful,
renatofilho@787:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
renatofilho@787:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
renatofilho@787:  * Library General Public License for more details.
renatofilho@787:  *
renatofilho@787:  * You should have received a copy of the GNU Library General Public
renatofilho@787:  * License along with this library; if not, write to the
renatofilho@787:  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
renatofilho@787:  * Boston, MA 02111-1307, USA.
renatofilho@787:  */
renatofilho@787: 
renatofilho@787: 
renatofilho@787: #ifndef __GST_MULTI_QUEUE_H__
renatofilho@787: #define __GST_MULTI_QUEUE_H__
renatofilho@787: 
renatofilho@787: #include <gst/gst.h>
renatofilho@787: #include "gstdataqueue.h"
renatofilho@787: 
renatofilho@787: G_BEGIN_DECLS
renatofilho@787: 
renatofilho@787: #define GST_TYPE_MULTI_QUEUE \
renatofilho@787:   (gst_multi_queue_get_type())
renatofilho@787: #define GST_MULTI_QUEUE(obj) \
renatofilho@787:   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MULTI_QUEUE,GstMultiQueue))
renatofilho@787: #define GST_MULTI_QUEUE_CLASS(klass) \
renatofilho@787:   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MULTI_QUEUE,GstMultiQueueClass))
renatofilho@787: #define GST_IS_MULTI_QUEUE(obj) \
renatofilho@787:   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MULTI_QUEUE))
renatofilho@787: #define GST_IS_MULTI_QUEUE_CLASS(obj) \
renatofilho@787:   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MULTI_QUEUE))
renatofilho@787: 
renatofilho@787: typedef struct _GstMultiQueue GstMultiQueue;
renatofilho@787: typedef struct _GstMultiQueueClass GstMultiQueueClass;
renatofilho@787: 
renatofilho@787: /**
renatofilho@787:  * GstMultiQueue:
renatofilho@787:  *
renatofilho@787:  * Opaque #GstMultiQueue structure.
renatofilho@787:  */
renatofilho@787: struct _GstMultiQueue {
renatofilho@787:   GstElement element;
renatofilho@787: 
renatofilho@787:   /* number of queues */
renatofilho@787:   guint	nbqueues;
renatofilho@787: 
renatofilho@787:   /* The list of individual queues */
renatofilho@787:   GList *queues;
renatofilho@787: 
renatofilho@787:   GstDataQueueSize  max_size, extra_size;
renatofilho@787: 
renatofilho@787:   guint32  counter;	/* incoming object counter */
renatofilho@787:   guint32  highid;	/* contains highest id of last outputted object */
renatofilho@787: 
renatofilho@787:   GMutex * qlock;	/* Global queue lock (vs object lock or individual */
renatofilho@787: 			/* queues lock). Protects nbqueues, queues, global */
renatofilho@787: 			/* GstMultiQueueSize, counter and highid */
renatofilho@787: 
renatofilho@787:   gint nextnotlinked;	/* ID of the next queue not linked (-1 : none) */
renatofilho@787: 
renatofilho@787:   gint numwaiting;	/* number of not-linked pads waiting */
renatofilho@787: };
renatofilho@787: 
renatofilho@787: struct _GstMultiQueueClass {
renatofilho@787:   GstElementClass parent_class;
renatofilho@787: 
renatofilho@787:   /* signals emitted when ALL queues are either full or empty */
renatofilho@787:   void (*underrun)	(GstMultiQueue *queue);
renatofilho@787:   void (*overrun)	(GstMultiQueue *queue);
renatofilho@787: };
renatofilho@787: 
renatofilho@787: GType gst_multi_queue_get_type (void);
renatofilho@787: 
renatofilho@787: G_END_DECLS
renatofilho@787: 
renatofilho@787: 
renatofilho@787: #endif /* __GST_MULTI_QUEUE_H__ */