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plugin: refactor the initialization code.

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Remove references to global python objects from the initialization code. This
makes it possible to avoid linking to libpython.
This commit is contained in:
Alessandro Decina 2010-08-26 12:09:31 +02:00
parent 8b02893346
commit c5b2a96bc9
1 changed files with 35 additions and 23 deletions
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58
plugin/gstpythonplugin.c
View file

@ -25,6 +25,7 @@
/* include this first, before NO_IMPORT_PYGOBJECT is defined */
#include <pygobject.h>
#include <gst/gst.h>
#include <Python.h>
PyTypeObject *_PyGstElement_Type;
#define PyGstElement_Type (*_PyGstElement_Type)
@ -40,35 +41,46 @@ static PyObject *element;
static inline gboolean
np_init_pygobject (void)
{
PyObject *gobject = PyImport_ImportModule ("gobject");
gboolean res = TRUE;
gboolean res = FALSE;
PyObject *gobject = NULL;
PyObject *main_module = NULL;
PyObject *mdict = NULL;
if (gobject != NULL) {
PyObject *mdict = PyModule_GetDict (gobject);
PyObject *cobject = PyDict_GetItemString (mdict, "_PyGObject_API");
if (PyCObject_Check (cobject)) {
_PyGObject_API =
(struct _PyGObject_Functions *) PyCObject_AsVoidPtr (cobject);
} else {
PyErr_SetString (PyExc_RuntimeError,
"could not find _PyGObject_API object");
PyErr_Print ();
res = FALSE;
goto beach;
}
if (!(PyObject_CallMethod (gobject, "threads_init", NULL, NULL))) {
PyErr_SetString (PyExc_RuntimeError, "Could not initialize threads");
PyErr_Print ();
res = FALSE;
goto beach;
}
} else {
gobject = PyImport_ImportModule ("gobject");
if (gobject == NULL) {
PyErr_Print ();
GST_WARNING ("could not import gobject");
res = FALSE;
goto beach;
}
main_module = PyImport_AddModule ("__main__");
mdict = PyModule_GetDict (gobject);
PyObject *cobject = PyDict_GetItemString (mdict, "_PyGObject_API");
if (cobject == NULL) {
GST_WARNING ("could not find _PyGObject_API");
goto beach;
}
_PyGObject_API =
(struct _PyGObject_Functions *) PyCObject_AsVoidPtr (cobject);
if (_PyGObject_API == NULL) {
PyErr_Print ();
GST_WARNING ("_PyGObject_API is not a valid CObject");
goto beach;
}
if (!(PyObject_CallMethod (gobject, "threads_init", NULL, NULL))) {
PyErr_Print ();
GST_WARNING ("could not initialize threads");
goto beach;
}
res = TRUE;
beach:
Py_XDECREF (gobject);
return res;
}