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63c1945695
Instead do everything it did as part of GObject::constructed() and change the function to always return TRUE. gst_ghost_pad_construct() was meant to be called by subclasses right after construction of the object to finish construction as it can fail in theory. In practice it's impossible for it to fail, even more so if called directly from GObject::constructed(): The only failure condition is if the newly created proxy pad already has a parent, which is impossible at this point as nothing else can have a reference to it. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/540>
152 lines
5.1 KiB
C
152 lines
5.1 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wim.taymans@chello.be>
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* 2005 Andy Wingo <wingo@pobox.com>
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*
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* gstghostpad.h: Proxy pads
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_GHOST_PAD_H__
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#define __GST_GHOST_PAD_H__
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#include <gst/gstpad.h>
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G_BEGIN_DECLS
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#define GST_TYPE_PROXY_PAD (gst_proxy_pad_get_type ())
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#define GST_IS_PROXY_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PROXY_PAD))
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#define GST_IS_PROXY_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_PROXY_PAD))
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#define GST_PROXY_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PROXY_PAD, GstProxyPad))
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#define GST_PROXY_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_PROXY_PAD, GstProxyPadClass))
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typedef struct _GstProxyPad GstProxyPad;
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typedef struct _GstProxyPadPrivate GstProxyPadPrivate;
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typedef struct _GstProxyPadClass GstProxyPadClass;
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struct _GstProxyPad
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{
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GstPad pad;
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/*< private >*/
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GstProxyPadPrivate *priv;
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};
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struct _GstProxyPadClass
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{
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GstPadClass parent_class;
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/*< private >*/
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gpointer _gst_reserved[1];
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};
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GST_API
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GType gst_proxy_pad_get_type (void);
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GST_API
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GstProxyPad * gst_proxy_pad_get_internal (GstProxyPad *pad);
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GST_API
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GstIterator* gst_proxy_pad_iterate_internal_links_default (GstPad *pad, GstObject *parent) G_GNUC_MALLOC;
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GST_API
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GstFlowReturn gst_proxy_pad_chain_default (GstPad *pad, GstObject *parent,
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GstBuffer *buffer);
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GST_API
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GstFlowReturn gst_proxy_pad_chain_list_default (GstPad *pad, GstObject *parent,
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GstBufferList *list);
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GST_API
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GstFlowReturn gst_proxy_pad_getrange_default (GstPad *pad, GstObject *parent,
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guint64 offset, guint size,
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GstBuffer **buffer);
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#define GST_TYPE_GHOST_PAD (gst_ghost_pad_get_type ())
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#define GST_IS_GHOST_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GHOST_PAD))
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#define GST_IS_GHOST_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GHOST_PAD))
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#define GST_GHOST_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GHOST_PAD, GstGhostPad))
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#define GST_GHOST_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GHOST_PAD, GstGhostPadClass))
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#define GST_GHOST_PAD_CAST(obj) ((GstGhostPad*)(obj))
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/**
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* GstGhostPad:
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*
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* Opaque #GstGhostPad structure.
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*/
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typedef struct _GstGhostPad GstGhostPad;
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typedef struct _GstGhostPadPrivate GstGhostPadPrivate;
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typedef struct _GstGhostPadClass GstGhostPadClass;
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struct _GstGhostPad
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{
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GstProxyPad pad;
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/*< private >*/
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GstGhostPadPrivate *priv;
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};
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struct _GstGhostPadClass
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{
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GstProxyPadClass parent_class;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GST_API
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GType gst_ghost_pad_get_type (void);
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GST_API
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GstPad* gst_ghost_pad_new (const gchar *name, GstPad *target) G_GNUC_MALLOC;
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GST_API
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GstPad* gst_ghost_pad_new_no_target (const gchar *name, GstPadDirection dir) G_GNUC_MALLOC;
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GST_API
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GstPad* gst_ghost_pad_new_from_template (const gchar *name, GstPad * target, GstPadTemplate * templ) G_GNUC_MALLOC;
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GST_API
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GstPad* gst_ghost_pad_new_no_target_from_template (const gchar *name, GstPadTemplate * templ) G_GNUC_MALLOC;
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GST_API
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GstPad* gst_ghost_pad_get_target (GstGhostPad *gpad);
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GST_API
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gboolean gst_ghost_pad_set_target (GstGhostPad *gpad, GstPad *newtarget);
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GST_DEPRECATED
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gboolean gst_ghost_pad_construct (GstGhostPad *gpad);
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GST_API
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gboolean gst_ghost_pad_activate_mode_default (GstPad * pad, GstObject * parent,
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GstPadMode mode, gboolean active);
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GST_API
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gboolean gst_ghost_pad_internal_activate_mode_default (GstPad * pad, GstObject * parent,
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GstPadMode mode, gboolean active);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstGhostPad, gst_object_unref)
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstProxyPad, gst_object_unref)
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G_END_DECLS
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#endif /* __GST_GHOST_PAD_H__ */
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