mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-30 20:20:38 +00:00
124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
/* -*- Mode: C; ; c-file-style: "k&r"; c-basic-offset: 4 -*- */
|
|
/* gst-python
|
|
* Copyright (C) 2002 David I. Lehn
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*
|
|
* Author: David I. Lehn <dlehn@users.sourceforge.net>
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "pygstobject.h"
|
|
|
|
#include <locale.h>
|
|
|
|
/* include this first, before NO_IMPORT_PYGOBJECT is defined */
|
|
#include <pygobject.h>
|
|
#include <gst/gst.h>
|
|
#include <gst/gstversion.h>
|
|
|
|
GST_DEBUG_CATEGORY_EXTERN (pygst_debug);
|
|
#define GST_CAT_DEFAULT pygst_debug
|
|
|
|
/* we reuse the same string for our quark so we get the same qdata;
|
|
* it might be worth it to use our own to shake out all instances
|
|
* were GObject-only calls are being used where we should be using
|
|
* gst_object_ */
|
|
static const gchar *pygobject_wrapper_id = "PyGObject::wrapper";
|
|
static GQuark pygobject_wrapper_key = 0;
|
|
|
|
/* only use on GstObject */
|
|
void
|
|
pygstobject_sink(GObject *object)
|
|
{
|
|
g_assert (GST_IS_OBJECT (object));
|
|
|
|
if (GST_OBJECT_IS_FLOATING(object)) {
|
|
gst_object_ref(GST_OBJECT(object));
|
|
gst_object_sink(GST_OBJECT(object));
|
|
}
|
|
}
|
|
|
|
/* functions used by the code generator we can call on both
|
|
* GstObject and non-GstObject GObjects
|
|
*/
|
|
|
|
/* to be called instead of pygobject_new */
|
|
PyObject *
|
|
pygstobject_new(GObject *obj)
|
|
{
|
|
PyGObject *self = NULL;
|
|
|
|
if (!GST_IS_OBJECT (obj))
|
|
return pygobject_new (obj);
|
|
|
|
GST_DEBUG_OBJECT (obj, "wrapping GstObject");
|
|
|
|
if (!pygobject_wrapper_key)
|
|
pygobject_wrapper_key = g_quark_from_static_string(pygobject_wrapper_id);
|
|
|
|
if (obj == NULL) {
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
/* we already have a wrapper for this object -- return it. */
|
|
self = (PyGObject *)g_object_get_qdata(obj, pygobject_wrapper_key);
|
|
if (self != NULL) {
|
|
Py_INCREF(self);
|
|
} else {
|
|
/* create wrapper */
|
|
PyTypeObject *tp = pygobject_lookup_class(G_OBJECT_TYPE(obj));
|
|
/* need to bump type refcount if created with
|
|
pygobject_new_with_interfaces(). fixes bug #141042 */
|
|
if (tp->tp_flags & Py_TPFLAGS_HEAPTYPE)
|
|
Py_INCREF(tp);
|
|
self = PyObject_GC_New(PyGObject, tp);
|
|
if (self == NULL)
|
|
return NULL;
|
|
pyg_begin_allow_threads;
|
|
self->obj = gst_object_ref(obj);
|
|
pyg_end_allow_threads;
|
|
pygstobject_sink(self->obj);
|
|
|
|
self->inst_dict = NULL;
|
|
self->weakreflist = NULL;
|
|
self->closures = NULL;
|
|
/* save wrapper pointer so we can access it later */
|
|
Py_INCREF(self);
|
|
g_object_set_qdata_full(obj, pygobject_wrapper_key, self,
|
|
pyg_destroy_notify);
|
|
|
|
PyObject_GC_Track((PyObject *)self);
|
|
}
|
|
GST_DEBUG_OBJECT (obj, "wrapped GstObject %p as PyObject %p", obj, self);
|
|
|
|
return (PyObject *)self;
|
|
}
|
|
|
|
/* to be called instead of g_object_unref */
|
|
void
|
|
pygst_object_unref(GObject *obj)
|
|
{
|
|
if (GST_IS_OBJECT (obj)) {
|
|
GST_DEBUG_OBJECT (obj, "unreffing GstObject %p", obj);
|
|
gst_object_unref (obj);
|
|
} else
|
|
g_object_unref (obj);
|
|
}
|