/* -*- Mode: C; c-basic-offset: 4 -*-
* vi:si:et:sw=4:sts=4:ts=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: Edward Hervey <edward@fluendo.com>
*/
%%
ignore
gst_bus_create_watch
gst_bus_sync_signal_handler
gst_bus_async_signal_func
%%
headers
static GstBusSyncReply
bus_sync_handler (GstBus *bus, GstMessage *message, gpointer user_data)
{
PyGILState_STATE state;
GstBusSyncReply res;
PyObject *py_userdata;
PyObject *py_msg;
PyObject *callback, *args;
PyObject *ret;
gint i, len;
g_return_val_if_fail (user_data != NULL, GST_BUS_PASS);
state = pyg_gil_state_ensure ();
py_userdata = (PyObject *) user_data;
py_msg = pygstminiobject_new (GST_MINI_OBJECT (message));
callback = PyTuple_GetItem (py_userdata, 0);
/* Using N we give away our references to the args tuple */
args = Py_BuildValue ("(NN)",
pygobject_new (G_OBJECT (bus)),
py_msg);
/* add all *args to the args tuple object */
len = PyTuple_Size (py_userdata);
for (i = 1; i < len; ++i) {
PyObject *tuple = args;
args = PySequence_Concat (tuple, PyTuple_GetItem (py_userdata, i));
Py_DECREF (tuple);
}
ret = PyObject_CallObject (callback, args);
if (!ret) {
PyErr_Print ();
res = GST_BUS_PASS;
} else {
if (ret == Py_None) {
PyErr_SetString (PyExc_TypeError,
"callback should return a BusSyncReply");
PyErr_Print ();
res = GST_BUS_PASS;
} else if (pyg_enum_get_value (GST_TYPE_BUS_SYNC_REPLY, ret,
(gint *) &res))
res = GST_BUS_PASS;
Py_DECREF (ret);
}
Py_DECREF (args);
pyg_gil_state_release (state);
return res;
}
static gboolean
bus_func (GstBus *bus, GstMessage *message, gpointer user_data)
{
PyGILState_STATE state;
gboolean res;
PyObject *py_userdata;
PyObject *py_msg;
PyObject *callback, *args;
PyObject *ret;
gint i, len;
g_return_val_if_fail (user_data != NULL, TRUE);
GST_DEBUG_OBJECT (bus, "dispatching message %p", message);
state = pyg_gil_state_ensure ();
py_userdata = (PyObject *) user_data;
g_assert (PyTuple_Check (py_userdata));
py_msg = pygstminiobject_new (GST_MINI_OBJECT (message));
callback = PyTuple_GetItem (py_userdata, 0);
/* Using N we give away our references to the args tuple */
args = Py_BuildValue ("(NN)",
pygobject_new (G_OBJECT (bus)),
py_msg);
g_assert (args);
/* add all *args to the args tuple object */
len = PyTuple_Size (py_userdata);
for (i = 1; i < len; ++i) {
PyObject *item;
PyObject *tuple = args;
item = PyTuple_GetItem (py_userdata, i);
g_assert (item);
args = PySequence_Concat (tuple, item);
g_assert (args);
Py_DECREF (tuple);
}
ret = PyObject_CallObject(callback, args);
if (!ret) {
PyErr_Print ();
res = TRUE;
} else {
if (ret == Py_None) {
PyErr_SetString (PyExc_TypeError,
"callback should return True or False");
PyErr_Print ();
res = TRUE;
} else
res = PyObject_IsTrue (ret);
Py_DECREF (ret);
}
Py_DECREF (args);
pyg_gil_state_release (state);
GST_DEBUG_OBJECT (bus, "dispatched message %p", message);
return res;
}
%%
override gst_bus_set_sync_handler args
static PyObject *
_wrap_gst_bus_set_sync_handler (PyGObject *self, PyObject *args)
{
PyObject *callback = NULL;
PyObject *cbargs = NULL;
PyObject *data = NULL;
PyObject *old_data = NULL;
gint len;
static GQuark sync_handler_data_quark = 0;
len = PyTuple_Size(args);
if (len < 1) {
PyErr_SetString(PyExc_TypeError, "Bus requires at least 1 arg");
return NULL;
}
if (sync_handler_data_quark == 0)
sync_handler_data_quark = \
g_quark_from_static_string("PyGst::BusSyncHandlerData");
callback = PySequence_GetItem(args, 0);
if (callback != Py_None) {
if (!PyCallable_Check(callback)) {
Py_DECREF (callback);
PyErr_SetString(PyExc_TypeError, "callback is not callable");
return NULL;
}
cbargs = PySequence_GetSlice(args, 1, len);
if (cbargs == NULL) {
Py_DECREF (callback);
return NULL;
}
data = Py_BuildValue("(ON)", callback, cbargs);
Py_DECREF (cbargs);
if (data == NULL) {
Py_DECREF (callback);
return NULL;
}
old_data = g_object_get_qdata (self->obj, sync_handler_data_quark);
if (old_data != NULL) {
Py_DECREF (old_data);
}
g_object_set_qdata (self->obj, sync_handler_data_quark, data);
gst_bus_set_sync_handler (GST_BUS (self->obj),
(GstBusSyncHandler) bus_sync_handler,
data);
} else {
old_data = g_object_get_qdata (self->obj, sync_handler_data_quark);
if (old_data != NULL) {
Py_DECREF (old_data);
}
g_object_set_qdata (self->obj, sync_handler_data_quark, NULL);
gst_bus_set_sync_handler (GST_BUS (self->obj), NULL, NULL);
}
Py_DECREF (callback);
Py_INCREF(Py_None);
return Py_None;
}
%%
override gst_bus_add_watch args
static PyObject *
_wrap_gst_bus_add_watch (PyGObject *self, PyObject *args)
{
PyObject *callback, *cbargs = NULL, *data;
guint sigid;
guint len;
len = PyTuple_Size(args);
if (len < 1) {
PyErr_SetString(PyExc_TypeError, "Bus.add_watch requires at least 1 argument");
return NULL;
}
callback = PySequence_GetItem(args, 0);
if (!PyCallable_Check(callback)) {
PyErr_SetString(PyExc_TypeError, "callback is not callable");
return NULL;
}
cbargs = PySequence_GetSlice(args, 1, len);
if (cbargs == NULL)
return NULL;
/* FIXME: thomas: I'm pretty sure the second N needs to be O */
data = Py_BuildValue("(ON)", callback, cbargs);
if (data == NULL)
return NULL;
sigid = gst_bus_add_watch_full (GST_BUS (self->obj), G_PRIORITY_DEFAULT,
(GstBusFunc) bus_func, data, (GDestroyNotify)pyg_destroy_notify);
return PyInt_FromLong(sigid);
}
%%
override gst_bus_add_signal_watch kwargs
static PyObject *
_wrap_gst_bus_add_signal_watch(PyGObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "priority", NULL };
int priority = G_PRIORITY_DEFAULT;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i:GstBus.add_signal_watch", kwlist, &priority))
return NULL;
pyg_begin_allow_threads;
gst_bus_add_signal_watch_full(GST_BUS(self->obj), priority);
pyg_end_allow_threads;
Py_INCREF(Py_None);
return Py_None;
}