1 /* Gnome-Streamer
2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 */
21 #ifndef __GST_QUEUE_H__
22 #define __GST_QUEUE_H__
25 #include <config.h>
26 #include <gst/gst.h>
29 #ifdef __cplusplus
30 extern "C" {
31 #endif /* __cplusplus */
34 GstElementDetails gst_queue_details;
37 #define GST_TYPE_QUEUE \
38 (gst_queue_get_type())
39 #define GST_QUEUE(obj) \
40 (GTK_CHECK_CAST((obj),GST_TYPE_QUEUE,GstQueue))
41 #define GST_QUEUE_CLASS(klass) \
42 (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_QUEUE,GstQueueClass))
43 #define GST_IS_QUEUE(obj) \
44 (GTK_CHECK_TYPE((obj),GST_TYPE_QUEUE))
45 #define GST_IS_QUEUE_CLASS(obj) \
46 (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_QUEUE)))
48 typedef struct _GstQueue GstQueue;
49 typedef struct _GstQueueClass GstQueueClass;
51 struct _GstQueue {
52 GstConnection Connection;
54 GstPad *sinkpad;
55 GstPad *srcpad;
57 /* the queue of buffers we're keeping our grubby hands on */
58 GList *queue;
59 GList *tail; /* have to keep track of this myself */
61 gint level_buffers; /* number of buffers queued here */
62 gint level_bytes; /* number of bytes queued here */
63 gint size_buffers; /* size of queue in buffers */
64 gint size_bytes; /* size of queue in bytes */
66 GMutex *waiterlock; /* used when the queue is empty */
67 GCond *waitercond;
68 };
70 struct _GstQueueClass {
71 GstConnectionClass parent_class;
72 };
74 GtkType gst_queue_get_type(void);
75 GstElement *gst_queue_new(gchar *name);
76 void gst_queue_chain(GstPad *pad,GstBuffer *buf);
77 void gst_queue_push(GstConnection *connection);
79 #ifdef __cplusplus
80 }
81 #endif /* __cplusplus */
84 #endif /* __GST_QUEUE_H__ */