gstreamer/gst/gstmodule.c

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/* -*- Mode: C; ; c-file-style: "k&r"; c-basic-offset: 4 -*- */
/* gst-python
* Copyright (C) 2002 David I. Lehn
*
* 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: David I. Lehn <dlehn@users.sourceforge.net>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <locale.h>
/* include this first, before NO_IMPORT_PYGOBJECT is defined */
#include <pygobject.h>
#include <gst/gst.h>
#include <gst/gstversion.h>
void pygst_register_classes (PyObject *d);
void pygst_add_constants(PyObject *module, const gchar *strip_prefix);
void _pygst_register_boxed_types(PyObject *moddict);
extern PyMethodDef pygst_functions[];
extern GSList *mainloops;
extern void _pygst_main_quit(void);
extern PyObject *PyGstExc_LinkError;
/* This is a timeout that gets added to the mainloop to handle SIGINT (Ctrl-C)
* Other signals get handled at some other point where transition from
* C -> Python is being made.
*/
static gboolean
python_do_pending_calls(gpointer data)
{
gboolean quit = FALSE;
PyGILState_STATE state;
if (PyOS_InterruptOccurred()) {
state = pyg_gil_state_ensure();
PyErr_SetNone(PyExc_KeyboardInterrupt);
pyg_gil_state_release(state);
quit = TRUE;
}
if (quit && mainloops != NULL)
_pygst_main_quit();
return TRUE;
}
/* static void */
/* sink_gstobject(GObject *object) */
/* { */
/* if (GST_OBJECT_FLOATING(object)) { */
/* g_object_ref(object); */
/* gst_object_sink(GST_OBJECT(object)); */
/* } */
/* } */
DL_EXPORT(void)
init_gst (void)
{
PyObject *m, *d;
PyObject *av, *tuple;
int argc, i;
char **argv;
init_pygobject ();
/* pull in arguments */
av = PySys_GetObject ("argv");
if (av != NULL) {
argc = PyList_Size (av);
argv = g_new (char *, argc);
for (i = 0; i < argc; i++)
argv[i] = g_strdup (PyString_AsString (PyList_GetItem (av, i)));
} else {
/* gst_init_check does not like argc == 0 */
argc = 1;
argv = g_new (char *, argc);
argv[0] = g_strdup("");
}
if (!gst_init_check (&argc, &argv)) {
if (argv != NULL) {
for (i = 0; i < argc; i++)
g_free (argv[i]);
g_free (argv);
}
PyErr_SetString (PyExc_RuntimeError, "can't initialize module gst");
setlocale(LC_NUMERIC, "C");
return;
}
setlocale(LC_NUMERIC, "C");
if (argv != NULL) {
PySys_SetArgv (argc, argv);
for (i = 0; i < argc; i++)
g_free (argv[i]);
g_free (argv);
}
/* _pygst_register_boxed_types (NULL); */
/* pygobject_register_sinkfunc(GST_TYPE_OBJECT, sink_gstobject); */
m = Py_InitModule ("_gst", pygst_functions);
d = PyModule_GetDict (m);
/* gst+ version */
tuple = Py_BuildValue ("(iii)", GST_VERSION_MAJOR, GST_VERSION_MINOR,
GST_VERSION_MICRO);
PyDict_SetItemString(d, "gst_version", tuple);
Py_DECREF(tuple);
/* gst-python version */
tuple = Py_BuildValue ("(iii)", PYGST_MAJOR_VERSION, PYGST_MINOR_VERSION,
PYGST_MICRO_VERSION);
PyDict_SetItemString(d, "pygst_version", tuple);
Py_DECREF(tuple);
PyModule_AddIntConstant(m, "SECOND", GST_SECOND);
PyModule_AddIntConstant(m, "MSECOND", GST_MSECOND);
PyModule_AddIntConstant(m, "NSECOND", GST_NSECOND);
/* LinkError exception */
PyGstExc_LinkError = PyErr_NewException("gst.LinkError",
PyExc_RuntimeError,
NULL);
PyDict_SetItemString(d, "LinkError", PyGstExc_LinkError);
pygst_register_classes (d);
pygst_add_constants (m, "GST_");
g_timeout_add_full (0, 100, python_do_pending_calls, NULL, NULL);
if (PyErr_Occurred ()) {
Py_FatalError ("can't initialize module gst");
}
}