gstreamer/gst/gstelement.override

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/* -*- Mode: C; c-basic-offset: 4 -*- */
/* gst-python
* Copyright (C) 2005 Johan Dahlin
*
* 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>
*/
%%
ignore
gst_element_get
gst_element_set
gst_element_get_property
gst_element_set_property
%%
override gst_element_get_pad_list noargs
static PyObject *
_wrap_gst_element_get_pad_list(PyGObject *self)
{
GList *l, *pads;
PyObject *list;
pads = GST_ELEMENT_PADS(GST_ELEMENT(self->obj));
list = PyList_New(0);
for (l = pads; l; l = l->next) {
GstPad *pad = (GstPad*)l->data;
PyList_Append(list, pygobject_new(G_OBJECT(pad)));
}
return list;
}
%%
override gst_element_get_pad_template_list noargs
static PyObject *
_wrap_gst_element_get_pad_template_list(PyGObject *self)
{
GList *l, *pads;
PyObject *list;
pads = (GList*)gst_element_get_pad_template_list(GST_ELEMENT(self->obj));
list = PyList_New(0);
for (l = pads; l; l = l->next) {
GstPad *pad = (GstPad*)l->data;
PyList_Append(list, pygobject_new(G_OBJECT(pad)));
}
return list;
}
%%
override gst_element_set_state kwargs
static PyObject *
_wrap_gst_element_set_state(PyGObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "state", NULL };
PyObject *py_state = NULL;
GstElementState state;
gint ret;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O:GstElement.set_state", kwlist, &py_state))
return NULL;
if (pyg_flags_get_value(GST_TYPE_ELEMENT_STATE, py_state, (gint *)&state))
return NULL;
pyg_begin_allow_threads;
ret = gst_element_set_state(GST_ELEMENT(self->obj), state);
pyg_end_allow_threads;
return PyInt_FromLong(ret);
}
%%
override gst_element_query kwargs
static PyObject *
_wrap_gst_element_query(PyGObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "type", "format", NULL };
GstQueryType type;
GstFormat format;
gint64 value = 0;
gboolean ret;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"ii:GstElement.query", kwlist,
&type, &format))
return NULL;
ret = gst_element_query(GST_ELEMENT(self->obj), type, &format, &value);
return PyLong_FromLongLong(value);
}
%%
override gst_element_convert kwargs
static PyObject *
_wrap_gst_element_convert(PyGObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "src_format", "src_value", "dest_format", NULL };
GstFormat src_format, dest_format;
PyObject *src_value_obj;
gint64 src_value, dest_value;
gboolean ret;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "iOi:GstElement.convert", kwlist, &src_format, &src_value_obj, &dest_format))
return NULL;
src_value = PyLong_AsLongLong(src_value_obj);
dest_value = 0;
ret = gst_element_convert(GST_ELEMENT(self->obj), src_format, src_value, &dest_format, &dest_value);
if (!ret) {
PyErr_SetString(PyExc_RuntimeError, "conversion could not be performed");
return NULL;
}
return PyInt_FromLong(dest_value);
}
%%
override gst_element_link_many args
static PyObject *
_wrap_gst_element_link_many(PyObject *self, PyObject *args)
{
PyGObject *element, *element2;
int i, len;
len = PyTuple_Size(args);
if (len < 2)
{
PyErr_SetString(PyExc_TypeError, "gst.element_link_many requires at least two argument");
return NULL;
}
for (i = 0; i < len; i++)
{
element = (PyGObject*)PyTuple_GetItem(args, i);
if (!pygobject_check(element, &PyGstElement_Type))
{
PyErr_SetString(PyExc_TypeError, "argument must be a GstElement");
return NULL;
}
}
/* Mimic the real gst_element_link_many */
element = (PyGObject*)PyTuple_GetItem(args, 0);
element2 = (PyGObject*)PyTuple_GetItem(args, 1);
i = 2;
while (1) {
if (!gst_element_link(GST_ELEMENT(element->obj),
GST_ELEMENT(element2->obj)))
{
PyErr_Format(PyGstExc_LinkError,
"failed to link %s with %s",
GST_ELEMENT_NAME(element->obj),
GST_ELEMENT_NAME(element2->obj));
return NULL;
}
if (i >= len)
break;
element = element2;
element2 = (PyGObject*)PyTuple_GetItem(args, i);
i++;
}
Py_INCREF(Py_True);
return Py_True;
}
%%
override gst_element_link kwargs
static PyObject *
_wrap_gst_element_link(PyGObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "dest", NULL };
PyGObject *dest;
int ret;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O!:GstElement.link",
kwlist, &PyGstElement_Type, &dest))
return NULL;
ret = gst_element_link(GST_ELEMENT(self->obj), GST_ELEMENT(dest->obj));
if (!ret) {
PyErr_Format(PyGstExc_LinkError,
"failed to link %s with %s",
GST_ELEMENT_NAME(self->obj),
GST_ELEMENT_NAME(dest->obj));
return NULL;
}
return PyBool_FromLong(ret);
}
%%
override gst_element_link_filtered kwargs
static PyObject *
_wrap_gst_element_link_filtered(PyGObject *self, PyObject *args,
PyObject *kwargs)
{
static char *kwlist[] = { "dest", "filtercaps", NULL };
PyGObject *dest;
PyObject *py_filtercaps;
int ret;
GstCaps *filtercaps = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"O!O:GstElement.link_filtered",
kwlist, &PyGstElement_Type,
&dest, &py_filtercaps))
return NULL;
if (pyg_boxed_check(py_filtercaps, GST_TYPE_CAPS))
filtercaps = pyg_boxed_get(py_filtercaps, GstCaps);
else {
PyErr_SetString(PyExc_TypeError, "filtercaps should be a GstCaps");
return NULL;
}
ret = gst_element_link_filtered(GST_ELEMENT(self->obj),
GST_ELEMENT(dest->obj),
filtercaps);
if (!ret) {
PyErr_Format(PyGstExc_LinkError,
"failed to link %s with %s",
GST_ELEMENT_NAME(self->obj),
GST_ELEMENT_NAME(dest->obj));
return NULL;
}
return PyBool_FromLong(ret);
}
%%
override gst_element_link_pads kwargs
static PyObject *
_wrap_gst_element_link_pads(PyGObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "srcpadname", "dest", "destpadname", NULL };
char *srcpadname, *destpadname;
PyGObject *dest;
int ret;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"sO!s:GstElement.link_pads", kwlist,
&srcpadname, &PyGstElement_Type, &dest,
&destpadname))
return NULL;
ret = gst_element_link_pads(GST_ELEMENT(self->obj), srcpadname,
GST_ELEMENT(dest->obj), destpadname);
if (!ret) {
PyErr_SetString(PyGstExc_LinkError, "link failed");
return NULL;
}
return PyBool_FromLong(ret);
}
%%
override gst_element_link_pads_filtered kwargs
static PyObject *
_wrap_gst_element_link_pads_filtered(PyGObject *self, PyObject *args,
PyObject *kwargs)
{
static char *kwlist[] = { "srcpadname", "dest", "destpadname",
"filtercaps", NULL };
char *srcpadname, *destpadname;
PyGObject *dest;
int ret;
PyObject *py_filtercaps;
GstCaps *filtercaps = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"sO!sO:GstElement.link_pads_filtered",
kwlist, &srcpadname, &PyGstElement_Type,
&dest, &destpadname, &py_filtercaps))
return NULL;
if (pyg_boxed_check(py_filtercaps, GST_TYPE_CAPS))
filtercaps = pyg_boxed_get(py_filtercaps, GstCaps);
else {
PyErr_SetString(PyExc_TypeError, "filtercaps should be a GstCaps");
return NULL;
}
ret = gst_element_link_pads_filtered(GST_ELEMENT(self->obj), srcpadname,
GST_ELEMENT(dest->obj), destpadname,
filtercaps);
if (!ret) {
PyErr_SetString(PyGstExc_LinkError, "link failed");
return NULL;
}
return PyBool_FromLong(ret);
}
%%
override gst_element_unlink_many args
static PyObject *
_wrap_gst_element_unlink_many(PyObject *self, PyObject *args)
{
PyGObject *element, *element2;
int i, len;
len = PyTuple_Size(args);
if (len < 2)
{
PyErr_SetString(PyExc_TypeError, "gst.element_unlink_many requires at least two arguments");
return NULL;
}
for (i = 0; i < len; i++)
{
element = (PyGObject*)PyTuple_GetItem(args, i);
if (!pygobject_check(element, &PyGstElement_Type))
{
PyErr_SetString(PyExc_TypeError, "argument must be a GstElement");
return NULL;
}
}
/* Mimic the real gst_element_unlink_many */
element = (PyGObject*)PyTuple_GetItem(args, 0);
element2 = (PyGObject*)PyTuple_GetItem(args, 1);
i = 2;
while (1) {
gst_element_unlink(GST_ELEMENT(element->obj), GST_ELEMENT(element2->obj));
if (i >= len)
break;
element = element2;
element2 = (PyGObject*)PyTuple_GetItem(args, i);
i++;
}
Py_INCREF(Py_None);
return Py_None;
}
%%
override gst_element_send_event kwargs
static PyObject *
_wrap_gst_element_send_event(PyGObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "event", NULL };
PyObject *py_event;
int ret;
GstEvent *event = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O:GstElement.send_event", kwlist, &py_event))
return NULL;
if (pyg_boxed_check(py_event, GST_TYPE_EVENT))
event = pyg_boxed_get(py_event, GstEvent);
else {
PyErr_SetString(PyExc_TypeError, "event should be a GstEvent");
return NULL;
}
/* The pipeline unrefs the event, but we want to keep the ownership */
gst_event_ref(event);
ret = gst_element_send_event(GST_ELEMENT(self->obj), event);
return PyBool_FromLong(ret);
}