1/* GStreamer
2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wim.taymans@chello.be>
4 * 2005 Andy Wingo <wingo@pobox.com>
5 *
6 * gstghostpad.h: Proxy pads
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
22 */
23
24
25#ifndef __GST_GHOST_PAD_H__
26#define __GST_GHOST_PAD_H__
27
28
29#include <gst/gstpad.h>
30
31
32G_BEGIN_DECLS
33
34#define GST_TYPE_PROXY_PAD (gst_proxy_pad_get_type ())
35#define GST_IS_PROXY_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PROXY_PAD))
36#define GST_IS_PROXY_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_PROXY_PAD))
37#define GST_PROXY_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PROXY_PAD, GstProxyPad))
38#define GST_PROXY_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_PROXY_PAD, GstProxyPadClass))
39
40typedef struct _GstProxyPad GstProxyPad;
41typedef struct _GstProxyPadPrivate GstProxyPadPrivate;
42typedef struct _GstProxyPadClass GstProxyPadClass;
43
44struct _GstProxyPad
45{
46 GstPad pad;
47
48 /*< private >*/
49 GstProxyPadPrivate *priv;
50};
51
52struct _GstProxyPadClass
53{
54 GstPadClass parent_class;
55
56 /*< private >*/
57 gpointer _gst_reserved[1];
58};
59
60GType gst_proxy_pad_get_type (void);
61
62GstProxyPad* gst_proxy_pad_get_internal (GstProxyPad *pad);
63
64
65const GstQueryType* gst_proxy_pad_query_type_default (GstPad *pad);
66gboolean gst_proxy_pad_event_default (GstPad *pad, GstEvent *event);
67gboolean gst_proxy_pad_query_default (GstPad *pad, GstQuery *query);
68GstIterator* gst_proxy_pad_iterate_internal_links_default (GstPad *pad) G_GNUC_MALLOC;
69GstFlowReturn gst_proxy_pad_bufferalloc_default (GstPad *pad, guint64 offset, guint size, GstCaps *caps, GstBuffer **buf);
70GstFlowReturn gst_proxy_pad_chain_default (GstPad *pad, GstBuffer *buffer);
71GstFlowReturn gst_proxy_pad_chain_list_default (GstPad *pad, GstBufferList *list);
72GstFlowReturn gst_proxy_pad_getrange_default (GstPad *pad, guint64 offset, guint size, GstBuffer **buffer);
73gboolean gst_proxy_pad_checkgetrange_default (GstPad *pad);
74GstCaps* gst_proxy_pad_getcaps_default (GstPad *pad);
75gboolean gst_proxy_pad_acceptcaps_default (GstPad *pad, GstCaps *caps);
76void gst_proxy_pad_fixatecaps_default (GstPad *pad, GstCaps *caps);
77gboolean gst_proxy_pad_setcaps_default (GstPad *pad, GstCaps *caps);
78void gst_proxy_pad_unlink_default (GstPad * pad);
79
80#define GST_TYPE_GHOST_PAD (gst_ghost_pad_get_type ())
81#define GST_IS_GHOST_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GHOST_PAD))
82#define GST_IS_GHOST_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GHOST_PAD))
83#define GST_GHOST_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GHOST_PAD, GstGhostPad))
84#define GST_GHOST_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GHOST_PAD, GstGhostPadClass))
85#define GST_GHOST_PAD_CAST(obj) ((GstGhostPad*)(obj))
86
87/**
88 * GstGhostPad:
89 *
90 * Opaque #GstGhostPad structure.
91 */
92typedef struct _GstGhostPad GstGhostPad;
93typedef struct _GstGhostPadPrivate GstGhostPadPrivate;
94typedef struct _GstGhostPadClass GstGhostPadClass;
95
96struct _GstGhostPad
97{
98 GstProxyPad pad;
99
100 /*< private >*/
101 GstGhostPadPrivate *priv;
102};
103
104struct _GstGhostPadClass
105{
106 GstProxyPadClass parent_class;
107
108 /*< private >*/
109 gpointer _gst_reserved[GST_PADDING];
110};
111
112
113GType gst_ghost_pad_get_type (void);
114
115GstPad* gst_ghost_pad_new (const gchar *name, GstPad *target) G_GNUC_MALLOC;
116GstPad* gst_ghost_pad_new_no_target (const gchar *name, GstPadDirection dir) G_GNUC_MALLOC;
117
118GstPad* gst_ghost_pad_new_from_template (const gchar *name, GstPad * target, GstPadTemplate * templ) G_GNUC_MALLOC;
119GstPad* gst_ghost_pad_new_no_target_from_template (const gchar *name, GstPadTemplate * templ) G_GNUC_MALLOC;
120
121GstPad* gst_ghost_pad_get_target (GstGhostPad *gpad);
122gboolean gst_ghost_pad_set_target (GstGhostPad *gpad, GstPad *newtarget);
123
124gboolean gst_ghost_pad_construct (GstGhostPad *gpad);
125
126gboolean gst_ghost_pad_setcaps_default (GstPad * pad, GstCaps * caps);
127void gst_ghost_pad_unlink_default (GstPad * pad);
128GstPadLinkReturn gst_ghost_pad_link_default (GstPad * pad, GstPad * peer);
129gboolean gst_ghost_pad_activate_pull_default (GstPad * pad, gboolean active);
130gboolean gst_ghost_pad_activate_push_default (GstPad * pad, gboolean active);
131
132gboolean gst_ghost_pad_internal_activate_push_default (GstPad * pad, gboolean active);
133gboolean gst_ghost_pad_internal_activate_pull_default (GstPad * pad, gboolean active);
134
135G_END_DECLS
136
137#endif /* __GST_GHOST_PAD_H__ */
138