gstreamer/gst/pbutils.override

/* -*- Mode: C; c-basic-offset: 4 -*- */
/* gst-python
 * Copyright (C) 2008 <edward.hervey@collabora.co.uk>
 *
 * 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.
 */
%%
headers

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include "common.h"

#include <gst/gst.h>

#include <gst/pbutils/pbutils.h>
#include "pygstminiobject.h"
GST_DEBUG_CATEGORY_EXTERN (pygst_debug);
#define GST_CAT_DEFAULT pygst_debug

/* Boonky define that allows for backwards compatibility with Python 2.4 */
#if PY_VERSION_HEX < 0x02050000
#define Py_ssize_t int
#endif

#ifdef HAVE_PLUGINS_INSTALL
static void
install_plugins_result_handler(GstInstallPluginsReturn result, gpointer user_data)
{
    PyGILState_STATE state;
    PyObject *callback, *args;
    PyObject *py_user_data;
    PyObject *py_result;
    PyObject *ret;
    gint i, len;
    
    if (user_data == NULL)
	return;

    state = pyg_gil_state_ensure();

    py_user_data = (PyObject*) user_data;
    py_result = pyg_enum_from_gtype(GST_TYPE_INSTALL_PLUGINS_RETURN, result);

    callback = PyTuple_GetItem(py_user_data, 0);
    args = Py_BuildValue("(N)", py_result);

    len = PyTuple_Size(py_user_data);
    for (i = 1; i < len; ++i) {
	PyObject *tuple = args;
	args = PySequence_Concat(tuple, PyTuple_GetItem(py_user_data, i));
	Py_DECREF(tuple);
    }
    
    ret = PyObject_CallObject(callback, args);

    if (PyErr_Occurred())
	PyErr_Print();

    Py_DECREF(args);
    pyg_gil_state_release(state);

}
#endif
%%
modulename gst.pbutils
%%
import gobject.GObject as PyGObject_Type
import gst.Object as PyGstObject_Type
import gst.Structure as PyGstStructure_Type
import gst.Element as PyGstElement_Type
import gst.Message as PyGstMessage_Type
%%
include
  gstversion.override
%%
ignore-glob
 _*
 *init
 *_free
 *_get_type
%%
override gst_install_plugins_sync kwargs
static PyObject *
_wrap_gst_install_plugins_sync(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    static char *kwlist[] = { "details", "context", NULL };
    PyObject *py_ctx;
    GstInstallPluginsContext *ctx;
    GstInstallPluginsReturn ret;
    gchar **details;
    gint len;
    PyObject *py_ret;
    PyObject *py_details;
    Py_ssize_t i;

    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OO:install_plugins_sync",
				     kwlist, &py_details, &py_ctx))
	return NULL;

    if (!pyg_boxed_check(py_ctx, GST_TYPE_INSTALL_PLUGINS_CONTEXT)) {
	PyErr_SetString(PyExc_TypeError, "Argument 2 must be a gst.pbutils.InstallPluginsContext");
	return NULL;
    }

    len = PySequence_Size(py_details);
    if ((!PySequence_Check(py_details)) || (len < 1)) {
	PyErr_SetString(PyExc_TypeError, "Details need to be a non-empty list or tuple of strings");
	Py_DECREF(py_details);
	return NULL;
    }

    details = g_new0(gchar*, len+1);

    /* Check all items in py_details are strings */
    for (i = 0; i < len; i++) {
	PyObject *py_str = PySequence_GetItem(py_details, i);
	gchar *str;

	if (!PyString_Check(py_str)) {
	    PyErr_SetString(PyExc_TypeError, "Details need to be a non-empty list or tuple of strings");
	    Py_DECREF(py_str);
	    Py_DECREF(py_details);
	    return NULL;
	}
	if (!(str = PyString_AsString(py_str))) {
	    Py_DECREF(py_str);
	    Py_DECREF(py_details);
	    return NULL;
	}
	details[i] = g_strdup(str);
	Py_DECREF(py_str);
    }
    
    ctx = (GstInstallPluginsContext *) pyg_boxed_get(py_ctx, GstInstallPluginsContext);

    pyg_begin_allow_threads;
    ret = gst_install_plugins_sync(details, ctx);
    pyg_end_allow_threads;

    g_strfreev(details);

    py_ret = pyg_enum_from_gtype(GST_TYPE_INSTALL_PLUGINS_RETURN, ret);
    return py_ret;
}
%%
override gst_install_plugins_async args
static PyObject *
_wrap_gst_install_plugins_async(PyGObject *self, PyObject *args)
{
    PyObject *py_ctx, *py_ret, *py_details, *callback, *cbargs, *data;
    GstInstallPluginsContext *ctx;
    GstInstallPluginsReturn ret;
    gchar **details;
    gint len;
    Py_ssize_t i;

    if (PyTuple_Size(args) < 3) {
	PyErr_SetString(PyExc_TypeError, "install_plugins_async requires at least 3 arguments");
	return NULL;
    }

    py_ctx = PySequence_GetItem(args, 1);

    if (!pyg_boxed_check(py_ctx, GST_TYPE_INSTALL_PLUGINS_CONTEXT)) {
	PyErr_SetString(PyExc_TypeError, "Argument 2 must be a gst.pbutils.InstallPluginsContext");
	Py_DECREF(py_ctx);
	return NULL;
    }

    py_details = PySequence_GetItem(args, 0);
    if ((!PySequence_Check(py_details)) || (PySequence_Size(py_details) < 1)) {
	PyErr_SetString(PyExc_TypeError, "Details need to be a non-empty list or tuple of strings");
	Py_DECREF(py_ctx);
	Py_DECREF(py_details);
	return NULL;
    }

    len = PySequence_Size(py_details);
    details = g_new0(gchar*, len+1);

    /* Check all items in py_details are strings */
    for (i = 0; i < len; i++) {
	PyObject *py_str = PySequence_GetItem(py_details, i);
	gchar *str;

	if (!PyString_Check(py_str)) {
	    PyErr_SetString(PyExc_TypeError, "Details need to be a non-empty list or tuple of strings");
	    Py_DECREF(py_str);
	    Py_DECREF(py_ctx);
	    Py_DECREF(py_details);
	    g_strfreev(details);
	    return NULL;
	}
	if (!(str = PyString_AsString(py_str))) {
	    Py_DECREF(py_str);
	    Py_DECREF(py_ctx);
	    Py_DECREF(py_details);
	    g_strfreev(details);
	    return NULL;
	}
	details[i] = g_strdup(str);
	Py_DECREF(py_str);
    }

    callback = PySequence_GetItem(args, 2);
    if (!PyCallable_Check(callback)) {
	PyErr_SetString(PyExc_TypeError, "callback is not callable");
	Py_DECREF(callback);
	Py_DECREF(py_ctx);
	Py_DECREF(py_details);
	g_strfreev(details);
    }
    
    if (!(cbargs = PySequence_GetSlice(args, 3, PyTuple_Size(args)))) {
	Py_DECREF(callback);
	Py_DECREF(py_ctx);
	Py_DECREF(py_details);
	g_strfreev(details);
	return NULL;
    }
    if (!(data = Py_BuildValue("(ON)", callback, cbargs))) {
	Py_DECREF(py_details);
	Py_DECREF(py_ctx);
	Py_DECREF(callback);
	Py_DECREF(cbargs);
    }

    ctx = (GstInstallPluginsContext *) pyg_boxed_get(py_ctx, GstInstallPluginsContext);
    pyg_begin_allow_threads;
    ret = gst_install_plugins_async(details, ctx,
				    (GstInstallPluginsResultFunc) install_plugins_result_handler,
				    data);
    pyg_end_allow_threads;

    g_strfreev(details);

    py_ret = pyg_enum_from_gtype(GST_TYPE_INSTALL_PLUGINS_RETURN, ret);
    return py_ret;
}