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Original commit message from CVS:
* gst/arg-types.py:
* gst/gst.defs:
* gst/gst.override:

GstXML support, based on patch by poelzi.
This commit is contained in:
Johan Dahlin 2004-10-11 09:24:15 +00:00
parent 19ba5c793a
commit 1a232d7366
4 changed files with 142 additions and 3 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2004-10-11 Johan Dahlin <johan@gnome.org>
* gst/arg-types.py:
* gst/gst.defs:
* gst/gst.override:
GstXML support, based on patch by poelzi.
2004-10-10 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* gst/gstmodule.c: (init_gst):

56
gst/arg-types.py
View file

@ -48,10 +48,66 @@ class GstDataPtrArg(ArgType):
info.arglist.append(pname)
info.codebefore.append(self.normal % {'name': pname})
class XmlNodeArg(ArgType):
"""libxml2 node generator"""
names = {"xobj":"xmlNode",
"xptr":"xmlNodePtr",
"xwrap":"libxml_xmlNodePtrWrap"}
parm = (' if(xml == NULL) return NULL;\n'
' xobj = PyObject_GetAttrString(xml, "%(xobj)s");\n'
' if(!PyObject_IsInstance(py%(name)s, xobj)) {\n'
' PyErr_Clear();\n'
' PyErr_SetString(PyExc_RuntimeError,"%(name)s is not a %(xobj)s instance");\n'
' Py_DECREF(xobj);Py_DECREF(xml);\n'
' return NULL;\n'
' }\n'
' o = PyObject_GetAttrString(py%(name)s, "_o");\n'
' %(name)s = PyCObject_AsVoidPtr(o);\n')
parmp = (' Py_DECREF(o); Py_DECREF(xobj);Py_DECREF(xml);\n')
ret = (' if(xml == NULL) return NULL;\n')
retp = (' xargs = PyTuple_New(1);\n'
' xobj = PyObject_GetAttrString(xml, "%(xobj)s");\n'
' o = %(xwrap)s(ret);\n'
' PyTuple_SetItem(xargs, 0, o);\n'
' return PyInstance_New(xobj, xargs, PyDict_New());\n')
def write_param(self, ptype, pname, pdflt, pnull, info):
info.varlist.add('PyObject', '*xml = _gst_get_libxml2_module()')
info.varlist.add('PyObject', '*o')
info.varlist.add('PyObject', '*xobj')
info.varlist.add('PyObject', '*py' + pname)
info.varlist.add(self.names["xptr"], pname)
#if pnull:
info.add_parselist('O', ['&py'+pname], [pname])
info.arglist.append(pname)
self.names["name"] = pname
info.codebefore.append(self.parm %self.names)
info.codeafter.append(self.parmp % self.names);
def write_return(self, ptype, ownsreturn, info):
info.varlist.add('PyObject', '*xml = _gst_get_libxml2_module()')
info.varlist.add('PyObject', '*xargs')
info.varlist.add('PyObject', '*xobj')
info.varlist.add('PyObject', '*o')
info.varlist.add(self.names["xptr"], 'ret')
info.codebefore.append(self.ret % self.names)
info.codeafter.append(self.retp % self.names)
class XmlDocArg(XmlNodeArg):
"""libxml2 doc generator"""
names = {"xobj":"xmlDoc",
"xptr":"xmlDocPtr",
"xwrap":"libxml_xmlDocPtrWrap"}
arg = GstDataPtrArg()
matcher.register('GstData*', arg)
matcher.register('GstClockTime', UInt64Arg())
matcher.register('GstClockTimeDiff', Int64Arg())
matcher.register('xmlNodePtr', XmlNodeArg())
matcher.register('xmlDocPtr', XmlDocArg())
arg = PointerArg('gpointer', 'G_TYPE_POINTER')
matcher.register('GstClockID', arg)

2
gst/gst.defs
View file

@ -6024,7 +6024,7 @@
(define-function xml_new
(c-name "gst_xml_new")
(is-constructor-of "GstXml")
(is-constructor-of "GstXML")
(return-type "GstXML*")
)

79
gst/gst.override
View file

@ -27,7 +27,6 @@ headers
#endif
#include "common.h"
#include "gstmain.h"
#include <gst/gst.h>
#include <gst/gsterror.h>
@ -89,7 +88,6 @@ ignore-glob
gst_interface_*
gst_tag_list_get_*
gst_value_*
gst_xml_*
%%
ignore
gst_alloc_trace_list
@ -1167,3 +1165,80 @@ _wrap_gst_registry_pool_feature_list(PyGObject *self, PyObject *args)
return list;
}
%%
override gst_xml_new noargs
/* libxml2 available check */
static PyObject *
_gst_get_libxml2_module(void)
{
PyObject *xml = NULL;
xml = PyImport_ImportModule("libxml2");
if (!xml) {
PyErr_Clear();
PyErr_SetString(PyExc_RuntimeError,"libxml2 bindings required");
return NULL;
}
return xml;
}
static int
_wrap_gst_xml_new(PyGObject *self)
{
PyObject *xml = _gst_get_libxml2_module();
if(!xml)
return -1;
self->obj = (GObject *)gst_xml_new();
if (!self->obj) {
PyErr_SetString(PyExc_RuntimeError, "could not create GstXML object");
return -1;
}
pygobject_register_wrapper((PyObject *)self);
return 0;
}
%%
override gst_xml_get_topelements noargs
static PyObject *
_wrap_gst_xml_get_topelements(PyGObject *self)
{
GList *l, *xml_elements;
PyObject *py_list;
py_list = PyList_New(0);
xml_elements = gst_xml_get_topelements(GST_XML(self->obj));
for (l = xml_elements; l; l = l->next) {
GstElement *element = (GstElement*)l->data;
PyList_Append(py_list, pygobject_new(G_OBJECT(element)));
}
return py_list;
}
%%
override gst_xml_parse_memory kwargs
static PyObject *
_wrap_gst_xml_parse_memory(PyGObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "buffer", "root", NULL };
int buffer_len, ret;
char *root = NULL;
guchar *buffer;
if (!PyArg_ParseTupleAndKeywords(args, kwargs,
"s#|s:GstXML.parse_memory",
kwlist, &buffer, &buffer_len, &root))
return NULL;
ret = gst_xml_parse_memory(GST_XML(self->obj),
buffer, buffer_len, root);
return PyBool_FromLong(ret);
}