2 * Copyright (C) 2007 David Schleef <ds@schleef.org>
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.
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.
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 St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
20 #ifndef _GST_APP_SINK_H_
21 #define _GST_APP_SINK_H_
24 #include <gst/base/gstbasesink.h>
25 #include <gst/app/app-prelude.h>
29 #define GST_TYPE_APP_SINK \
30 (gst_app_sink_get_type())
31 #define GST_APP_SINK(obj) \
32 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_APP_SINK,GstAppSink))
33 #define GST_APP_SINK_CLASS(klass) \
34 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_APP_SINK,GstAppSinkClass))
35 #define GST_IS_APP_SINK(obj) \
36 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_APP_SINK))
37 #define GST_IS_APP_SINK_CLASS(klass) \
38 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_APP_SINK))
39 #define GST_APP_SINK_CAST(obj) \
42 typedef struct _GstAppSink GstAppSink;
43 typedef struct _GstAppSinkClass GstAppSinkClass;
44 typedef struct _GstAppSinkPrivate GstAppSinkPrivate;
46 /* FIXME 2.0: Make the instance/class struct private */
49 * GstAppSinkCallbacks: (skip)
50 * @eos: Called when the end-of-stream has been reached. This callback
51 * is called from the streaming thread.
52 * @new_preroll: Called when a new preroll sample is available.
53 * This callback is called from the streaming thread.
54 * The new preroll sample can be retrieved with
55 * gst_app_sink_pull_preroll() either from this callback
56 * or from any other thread.
57 * @new_sample: Called when a new sample is available.
58 * This callback is called from the streaming thread.
59 * The new sample can be retrieved with
60 * gst_app_sink_pull_sample() either from this callback
61 * or from any other thread.
62 * @new_event: Called when a new event is available.
63 * This callback is called from the streaming thread.
64 * The new event can be retrieved with
65 * gst_app_sink_pull_event() either from this callback
66 * or from any other thread.
67 * The callback should return %TRUE if the event has been handled,
71 * A set of callbacks that can be installed on the appsink with
72 * gst_app_sink_set_callbacks().
75 void (*eos) (GstAppSink *appsink, gpointer user_data);
76 GstFlowReturn (*new_preroll) (GstAppSink *appsink, gpointer user_data);
77 GstFlowReturn (*new_sample) (GstAppSink *appsink, gpointer user_data);
78 gboolean (*new_event) (GstAppSink *appsink, gpointer user_data);
81 gpointer _gst_reserved[GST_PADDING - 1];
82 } GstAppSinkCallbacks;
89 GstAppSinkPrivate *priv;
92 gpointer _gst_reserved[GST_PADDING];
95 struct _GstAppSinkClass
97 GstBaseSinkClass basesink_class;
100 void (*eos) (GstAppSink *appsink);
101 GstFlowReturn (*new_preroll) (GstAppSink *appsink);
102 GstFlowReturn (*new_sample) (GstAppSink *appsink);
103 /* new_event is missing as we ran out padding */
106 GstSample * (*pull_preroll) (GstAppSink *appsink);
107 GstSample * (*pull_sample) (GstAppSink *appsink);
108 GstSample * (*try_pull_preroll) (GstAppSink *appsink, GstClockTime timeout);
109 GstSample * (*try_pull_sample) (GstAppSink *appsink, GstClockTime timeout);
111 * GstAppSinkClass::try_pull_object:
113 * See #GstAppSink::try-pull-object: signal.
117 GstMiniObject * (*try_pull_object) (GstAppSink *appsink, GstClockTime timeout);
120 gpointer _gst_reserved[GST_PADDING - 3];
124 GType gst_app_sink_get_type (void);
127 void gst_app_sink_set_caps (GstAppSink *appsink, const GstCaps *caps);
130 GstCaps * gst_app_sink_get_caps (GstAppSink *appsink);
133 gboolean gst_app_sink_is_eos (GstAppSink *appsink);
136 void gst_app_sink_set_emit_signals (GstAppSink *appsink, gboolean emit);
139 gboolean gst_app_sink_get_emit_signals (GstAppSink *appsink);
142 void gst_app_sink_set_max_buffers (GstAppSink *appsink, guint max);
145 guint gst_app_sink_get_max_buffers (GstAppSink *appsink);
148 void gst_app_sink_set_drop (GstAppSink *appsink, gboolean drop);
151 gboolean gst_app_sink_get_drop (GstAppSink *appsink);
154 void gst_app_sink_set_buffer_list_support (GstAppSink *appsink, gboolean enable_lists);
157 gboolean gst_app_sink_get_buffer_list_support (GstAppSink *appsink);
160 void gst_app_sink_set_wait_on_eos (GstAppSink *appsink, gboolean wait);
163 gboolean gst_app_sink_get_wait_on_eos (GstAppSink *appsink);
166 GstSample * gst_app_sink_pull_preroll (GstAppSink *appsink);
169 GstSample * gst_app_sink_pull_sample (GstAppSink *appsink);
172 GstMiniObject * gst_app_sink_pull_object (GstAppSink *appsink);
175 GstSample * gst_app_sink_try_pull_preroll (GstAppSink *appsink, GstClockTime timeout);
178 GstSample * gst_app_sink_try_pull_sample (GstAppSink *appsink, GstClockTime timeout);
181 GstMiniObject * gst_app_sink_try_pull_object (GstAppSink *appsink, GstClockTime timeout);
184 void gst_app_sink_set_callbacks (GstAppSink * appsink,
185 GstAppSinkCallbacks *callbacks,
187 GDestroyNotify notify);
189 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAppSink, gst_object_unref)