[Bug 655346] New: Gst.ElementFactory().create("element_name") passes NULL to Gstreamer

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=655346
  GStreamer | gstreamer (core) | unspecified

           Summary: Gst.ElementFactory().create("element_name") passes
                    NULL to Gstreamer
    Classification: Platform
           Product: GStreamer
           Version: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: pecisk at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


This is confirmed using newest jhbuild with 3.2 moduleset and Fedora 15
default.

1. Python script
from gi.repository import Gst
Gst.init(None)
element = Gst.ElementFactory().create("level")
print element

2. Run it using GST_DEBUG=*:3

0:00:00.000184311  8626  0x9d58f90 INFO                GST_INIT
gst.c:605:init_pre: Initializing GStreamer Core Library version 0.10.32
0:00:00.000306044  8626  0x9d58f90 INFO                GST_INIT
gst.c:606:init_pre: Using library installed in /usr/lib
0:00:00.000348578  8626  0x9d58f90 INFO                GST_INIT
gst.c:616:init_pre: Linux pecisk-test.vsaa.lv 2.6.38.6-26.rc1.fc15.i686 #1 SMP
Mon May 9 20:43:14 UTC 2011 i686
0:00:00.000552444  8626  0x9d58f90 INFO                GST_INIT
gstquery.c:107:_gst_query_initialize: init queries
0:00:00.002342756  8626  0x9d58f90 INFO                GST_INIT
gstmessage.c:73:_gst_message_initialize: init messages
0:00:00.003328845  8626  0x9d58f90 INFO      GST_PLUGIN_LOADING
gstplugin.c:350:_gst_plugin_initialize: registering 0 static plugins
0:00:00.003715557  8626  0x9d58f90 INFO      GST_PLUGIN_LOADING
gstplugin.c:255:gst_plugin_register_static: registered static plugin
"staticelements"
0:00:00.003763468  8626  0x9d58f90 INFO      GST_PLUGIN_LOADING
gstplugin.c:257:gst_plugin_register_static: added static plugin
"staticelements", result: 1
0:00:00.004435201  8626  0x9d58f90 INFO            GST_REGISTRY
gstregistry.c:1599:ensure_current_registry: reading registry cache:
/home/pecisk/.gstreamer-0.10/registry.i386.bin
0:00:00.029915116  8626  0x9d58f90 INFO            GST_REGISTRY
gstregistrybinary.c:614:gst_registry_binary_read_cache: loaded
/home/pecisk/.gstreamer-0.10/registry.i386.bin in 0,025414 seconds
0:00:00.030119960  8626  0x9d58f90 INFO            GST_REGISTRY
gstregistry.c:1469:scan_and_update_registry: Validating plugins from registry
cache: /home/pecisk/.gstreamer-0.10/registry.i386.bin
0:00:00.034866093  8626  0x9d58f90 INFO            GST_REGISTRY
gstregistry.c:1561:scan_and_update_registry: Registry cache has not changed
0:00:00.034907649  8626  0x9d58f90 INFO            GST_REGISTRY
gstregistry.c:1628:ensure_current_registry: registry reading and updating done,
result = 1
0:00:00.034939915  8626  0x9d58f90 INFO                GST_INIT
gst.c:792:init_post: GLib runtime version: 2.28.8
0:00:00.034976582  8626  0x9d58f90 INFO                GST_INIT
gst.c:794:init_post: GLib headers version: 2.28.3
0:00:00.035019115  8626  0x9d58f90 INFO                GST_INIT
gst.c:450:gst_init_check: initialized GStreamer successfully

(<unknown>:8626): GStreamer-CRITICAL **: gst_registry_find_plugin: assertion
`name != NULL' failed
0:00:00.038125516  8626  0x9d58f90 WARN      GST_PLUGIN_LOADING
gstpluginfeature.c:128:gst_plugin_feature_load: Failed to load plugin
containing feature '(null)'.
0:00:00.038174405  8626  0x9d58f90 WARN     GST_ELEMENT_FACTORY
gstelementfactory.c:405:gst_element_factory_create:<elementfactory468> loading
plugin containing feature level returned NULL!

3. Get printed None and Warning

(<unknown>:8547): GStreamer-CRITICAL **: gst_registry_find_plugin: assertion
`name != NULL' failed
None

Expected result:
PyGI passes string and returns corespondent element or NULL if there's no such
element with this string as name.

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