gstreamer/gst/elements/gstqueue.h

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstqueue.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_QUEUE_H__
#define __GST_QUEUE_H__
#include <config.h>
#include <gst/gst.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
GstElementDetails gst_queue_details;
#define GST_TYPE_QUEUE \
(gst_queue_get_type())
#define GST_QUEUE(obj) \
(GTK_CHECK_CAST((obj),GST_TYPE_QUEUE,GstQueue))
#define GST_QUEUE_CLASS(klass) \
(GTK_CHECK_CLASS_CAST((klass),GST_TYPE_QUEUE,GstQueueClass))
#define GST_IS_QUEUE(obj) \
(GTK_CHECK_TYPE((obj),GST_TYPE_QUEUE))
#define GST_IS_QUEUE_CLASS(obj) \
(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_QUEUE))
typedef struct _GstQueue GstQueue;
typedef struct _GstQueueClass GstQueueClass;
struct _GstQueue {
GstElement element;
GstPad *sinkpad;
GstPad *srcpad;
/* the queue of buffers we're keeping our grubby hands on */
GSList *queue;
gint level_buffers; /* number of buffers queued here */
gint max_buffers; /* maximum number of buffers queued here */
gboolean block; /* if set to FALSE, _get returns NULL if queue empty */
gint level_bytes; /* number of bytes queued here */
gint size_buffers; /* size of queue in buffers */
gint size_bytes; /* size of queue in bytes */
GMutex *emptylock; /* used when the queue is empty */
GCond *emptycond;
GMutex *fulllock; /* used when the queue is full */
GCond *fullcond;
};
struct _GstQueueClass {
GstElementClass parent_class;
};
GtkType gst_queue_get_type (void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_QUEUE_H__ */