gstreamer/gst/gstlibs.override
Edward Hervey fbd17dd797 gst/: Proper wrapping of GstController
Original commit message from CVS:
* gst/gst.override:
* gst/gstlibs.override:
Proper wrapping of GstController
* examples/Makefile.am:
* examples/audio-controller.py:
Example to show how to use gst.Controller
2005-09-29 15:42:31 +00:00

103 lines
2.9 KiB
C

/* -*- Mode: C; ; c-basic-offset: 4 -*- */
/* gst-python
* Copyright (C) 2005 Edward Hervey
*
* 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: Johan Dahlin <johan@gnome.org>
*/
%%
override gst_controller_set args
static PyObject *
_wrap_gst_controller_set (PyGObject *self, PyObject *args)
{
GstController *controller = (GstController *) self->obj;
gchar *param_name;
GstClockTime timestamp;
GValue value = { 0, };
PyObject *pvalue;
GType type = 0;
GList *tmp;
gboolean res;
if (!PyArg_ParseTuple(args, "sLO:GstController.set",
&param_name, &timestamp, &pvalue))
return NULL;
/* We need to find the GType to convert to */
for (tmp = controller->properties; tmp; tmp = g_list_next (tmp)) {
GstControlledProperty *prop = (GstControlledProperty *) tmp->data;
if (!strcmp (prop->name, param_name))
type = prop->type;
}
if (!type) {
PyErr_SetString (PyExc_TypeError,
"The controller doesn't handle the given property");
return NULL;
}
g_value_init (&value, type);
if (pyg_value_from_pyobject (&value, pvalue)) {
PyErr_SetString (PyExc_TypeError,
"Couldn't convert the given value to the good type");
return NULL;
}
res = gst_controller_set (controller, param_name, timestamp, &value);
if (res) {
Py_INCREF (Py_True);
return Py_True;
}
Py_INCREF (Py_False);
return Py_False;
}
%%
override gst_controller_new_list args
static int
_wrap_gst_controller_new_list(PyGObject *self, PyObject *args)
{
PyGObject *target;
gint len;
GList *list = NULL;
if ((len = PyTuple_Size(args)) < 1) {
PyErr_SetString(PyExc_TypeError, "Controller requires at least a target object");
return -1;
}
target = (PyGObject *) PyTuple_GetItem(args, 0);
if (len > 1)
while (len-- > 1) {
PyObject *temp;
gchar *str;
temp = PyTuple_GetItem(args, len);
str = PyString_AsString(temp);
GST_INFO("prepending %s [%d]", str, len);
list = g_list_prepend(list, PyString_AsString(temp));
}
self->obj = (GObject *) gst_controller_new_list(target->obj, list);
if (!self->obj) {
PyErr_SetString(PyExc_RuntimeError, "could not create GstController object");
return -1;
}
pygobject_register_wrapper((PyObject *) self);
return 0;
}