gstappsink.h
1 /* GStreamer
2  * Copyright (C) 2007 David Schleef <ds@schleef.org>
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., 51 Franklin Street, Fifth Floor,
17  * Boston, MA 02110-1301, USA.
18  */
19 
20 #ifndef _GST_APP_SINK_H_
21 #define _GST_APP_SINK_H_
22 
23 #include <gst/gst.h>
24 #include <gst/base/gstbasesink.h>
25 
26 #ifdef __cplusplus
27 extern "C" {
28 #endif
29 
30 G_BEGIN_DECLS
31 
32 #define GST_TYPE_APP_SINK \
33  (gst_app_sink_get_type())
34 #define GST_APP_SINK(obj) \
35  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_APP_SINK,GstAppSink))
36 #define GST_APP_SINK_CLASS(klass) \
37  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_APP_SINK,GstAppSinkClass))
38 #define GST_IS_APP_SINK(obj) \
39  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_APP_SINK))
40 #define GST_IS_APP_SINK_CLASS(klass) \
41  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_APP_SINK))
42 
43 typedef struct _GstAppSink GstAppSink;
44 typedef struct _GstAppSinkClass GstAppSinkClass;
45 
47 {
48  GstBaseSink basesink;
49 
50  /*< private >*/
51  GstCaps *caps;
52 
53  GCond *cond;
54  GMutex *mutex;
55  GQueue *queue;
56  GstBuffer *preroll;
57  gboolean started;
58  gboolean is_eos;
59 };
60 
62 {
63  GstBaseSinkClass basesink_class;
64 
65  /* signals */
66  gboolean (*eos) (GstAppSink *sink);
67  gboolean (*new_preroll) (GstAppSink *sink);
68  gboolean (*new_buffer) (GstAppSink *sink);
69 
70  /* actions */
71  GstBuffer * (*pull_preroll) (GstAppSink *sink);
72  GstBuffer * (*pull_buffer) (GstAppSink *sink);
73 };
74 
75 GType gst_app_sink_get_type(void);
76 
77 GST_DEBUG_CATEGORY_EXTERN (app_sink_debug);
78 
79 void gst_app_sink_set_caps (GstAppSink *appsink, const GstCaps *caps);
80 GstCaps * gst_app_sink_get_caps (GstAppSink *appsink);
81 
82 gboolean gst_app_sink_is_eos (GstAppSink *appsink);
83 
84 GstBuffer * gst_app_sink_pull_preroll (GstAppSink *appsink);
85 GstBuffer * gst_app_sink_pull_buffer (GstAppSink *appsink);
86 GstBuffer * gst_app_sink_peek_buffer (GstAppSink *appsink);
87 
88 guint gst_app_sink_get_queue_length (GstAppSink *appsink);
89 
90 gboolean appsink_plugin_init (GstPlugin * plugin);
91 
92 G_END_DECLS
93 
94 #ifdef __cplusplus
95 }
96 #endif
97 
98 #endif
99 
Definition: gstappsink.h:61
Definition: gstappsink.h:46