gstreamer/gst/gstelementfactory.override

/* -*- Mode: C; c-basic-offset: 4 -*- */
/*
 * gstelementfactory.override - gstreamer element factory override
 * Copyright (C) 2005 Alessandro Decina
 * 
 * Authors:
 *   Alessandro Decina <alessandro@nnva.org>
 *
 * 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.
 */

%%
override gst_element_factory_make kwargs
static PyObject *
_wrap_gst_element_factory_make(PyObject *self, PyObject *args, PyObject *kwargs){
    static char *kwlist[] = { "factoryname", "name", NULL };
    char *factoryname, *name = NULL;
    PyObject *py_ret;
    GstElement *ret;

    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|z:element_factory_make", kwlist, &factoryname, &name))
        return NULL;

    pyg_begin_allow_threads;
    ret = gst_element_factory_make(factoryname, name);
    pyg_end_allow_threads;

    if (ret == NULL) {
        PyErr_SetString(PyGstExc_ElementNotFoundError, factoryname);
        return NULL;
    }
    py_ret = pygobject_new((GObject *)ret);
    g_object_unref((GObject *)ret);
    return py_ret;
}
%%
override gst_element_factory_get_static_pad_templates noargs
static PyObject *
_wrap_gst_element_factory_get_static_pad_templates(PyGObject *self)
{
  const GList *list;
  GList	*l;
  PyObject *py_list;
  int i = 0;

  pyg_begin_allow_threads;
  list = gst_element_factory_get_static_pad_templates (GST_ELEMENT_FACTORY (self->obj));
  pyg_end_allow_threads;

  py_list = PyList_New(g_list_length ((GList*) list));

  for (l = (GList*) list; l ; l = g_list_next(l), i++) {
    GstStaticPadTemplate *templ = (GstStaticPadTemplate*) l->data;
    PyList_SetItem(py_list, i, pyg_pointer_new(GST_TYPE_STATIC_PAD_TEMPLATE, (gpointer) templ));
  }
  return py_list;
}
%%
override gst_element_factory_list_get_elements kwargs
static PyObject *
_wrap_gst_element_factory_list_get_elements(PyObject *self, PyObject *args, PyObject *kwargs)
{
    static char *kwlist[] = { "type", "minrank", NULL };
    PyObject *py_minrank;
    GstRank minrank;
    GstElementFactoryListType listype;
    GList *res, *tmp;
    PyObject *pyres;

    if (!PyArg_ParseTupleAndKeywords(args, kwargs,"KO:element_factory_list_get_elements", kwlist,
				     &listype, &py_minrank))
        return NULL;
    if (pyg_enum_get_value(GST_TYPE_RANK, py_minrank, (gint *)&minrank))
        return NULL;
    pyg_begin_allow_threads;
    res = gst_element_factory_list_get_elements(listype, minrank);
    pyg_end_allow_threads;

    pyres = PyList_New(0);
    for (tmp = res; tmp; tmp = tmp->next) {
	GstElementFactory *fact = (GstElementFactory*) tmp->data;
	PyObject *ltmp = pygobject_new (G_OBJECT (fact));

	PyList_Append(pyres, ltmp);
    }
    gst_plugin_feature_list_free (res);

    return pyres;
}
%%
override gst_element_factory_list_filter kwargs
static PyObject *
_wrap_gst_element_factory_list_filter(PyObject *self, PyObject *args, PyObject *kwargs)
{
    static char *kwlist[] = { "list", "caps", "direction", "subsetonly", NULL };
    PyObject *py_list, *py_caps, *py_direction;
    GList *inlist = NULL;
    GList *res, *tmp;
    GstCaps *caps;
    GstPadDirection direction;
    gboolean subsetonly, caps_is_copy;
    PyObject *pyres;
    guint i, n;

    if (!PyArg_ParseTupleAndKeywords(args, kwargs,"OOOi:element_factory_list_filter", kwlist,
				     &py_list, &py_caps, &py_direction, &subsetonly))
        return NULL;
    if (!PyList_Check (py_list))
	return NULL;
    if (pyg_enum_get_value(GST_TYPE_PAD_DIRECTION, py_direction, (gint *)&direction))
        return NULL;
    caps = pygst_caps_from_pyobject(py_caps, &caps_is_copy);
    n = PyList_GET_SIZE(py_list);
    for (i = 0; i < n; i++) {
	/* Get Object */
	inlist = g_list_append(inlist, pygobject_get (PyList_GET_ITEM (py_list, i)));
    }

    pyg_begin_allow_threads;
    res = gst_element_factory_list_filter(inlist, caps, direction, subsetonly);
    pyg_end_allow_threads;

    pyres = PyList_New(0);
    for (tmp = res; tmp; tmp = tmp->next) {
	GstElementFactory *fact = (GstElementFactory*) tmp->data;
	PyObject *ltmp = pygobject_new (G_OBJECT (fact));

	PyList_Append(pyres, ltmp);
    }

    gst_plugin_feature_list_free (res);
    if (caps && caps_is_copy)
        gst_caps_unref (caps);
    if (inlist)
	g_list_free (inlist);

    return pyres;
}