[Bug 677925] New: Gst.ElementFactory.list_get_elements fails with constant values
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Tue Jun 12 01:15:01 PDT 2012
https://bugzilla.gnome.org/show_bug.cgi?id=677925
GStreamer | gst-plugins-bad | 0.11.x
Summary: Gst.ElementFactory.list_get_elements fails with
constant values
Classification: Platform
Product: GStreamer
Version: 0.11.x
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: gst-plugins-bad
AssignedTo: gstreamer-bugs at lists.freedesktop.org
ReportedBy: shakaran at gmail.com
QAContact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
Using the object Gst.ElementFactory.list_get_elements function causes serveral
exception on python. I am using Ubuntu 12.10 with Gstreamer 0.11.91-2.
This is the exaple code:
#!/usr/bin/env python
# -*- coding: utf-8; tab-width: 4; mode: python -*-
# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: t -*-
# vi: set ft=python sts=4 ts=4 sw=4 noet
import sys
import gi
try:
gi.require_version('Gst', '1.0')
from gi.repository import Gst
except ValueError:
print 'Could not find required Gstreamer 1.0 library.'
sys.exit(1)
# Setup GStreamer
Gst.init(None)
Gst.init_check(None)
print Gst.version_string(), Gst.version()
print 'ELEMENT_FACTORY_TYPE_ANY:', Gst.ELEMENT_FACTORY_TYPE_ANY
print Gst.ElementFactory.list_get_elements('Gst.ELEMENT_FACTORY_TYPE_ANY',
10000)
Running the example shows this traceback
GStreamer 1.0.0 (1L, 0L, 0L, 0L)
ELEMENT_FACTORY_TYPE_ANY: -1
Traceback (most recent call last):
File "/home/shakaran/Documentos/Projects/fs/gst_element_factory.py", line 22,
in <module>
print Gst.ElementFactory.list_get_elements('Gst.ELEMENT_FACTORY_TYPE_ANY',
10000)
File "/usr/lib/python2.7/dist-packages/gi/types.py", line 47, in function
return info.invoke(*args, **kwargs)
TypeError: Must be number, not str
Also using other constants yields other exceptions:
#!/usr/bin/env python
# -*- coding: utf-8; tab-width: 4; mode: python -*-
# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: t -*-
# vi: set ft=python sts=4 ts=4 sw=4 noet
import sys
import gi
try:
gi.require_version('Gst', '1.0')
from gi.repository import Gst
except ValueError:
print 'Could not find required Gstreamer 1.0 library.'
sys.exit(1)
# Setup GStreamer
Gst.init(None)
Gst.init_check(None)
print Gst.version_string(), Gst.version()
print 'ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS:',
Gst.ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS
print
Gst.ElementFactory.list_get_elements(Gst.ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS,
10000)
----
GStreamer 1.0.0 (1L, 0L, 0L, 0L)
ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS: 0
Traceback (most recent call last):
File "/home/shakaran/Documentos/Projects/fs/gst_element_factory.py", line 22,
in <module>
print
Gst.ElementFactory.list_get_elements(Gst.ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS,
10000)
File "/usr/lib/python2.7/dist-packages/gi/types.py", line 47, in function
return info.invoke(*args, **kwargs)
TypeError: Expected a Gst.Rank, but got int
I can observe on Gst-1.0.gir file this constants and all this have bad values
defined:
<constant name="ELEMENT_FACTORY_TYPE_ANY"
value="-1"
c:type="GST_ELEMENT_FACTORY_TYPE_ANY">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_AUDIOVIDEO_SINKS">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_AUDIO_ENCODER"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_AUDIO_ENCODER">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_DECODABLE"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_DECODABLE">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_DECODER"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_DECODER">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_DEMUXER"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_DEMUXER">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_DEPAYLOADER"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_ENCODER"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_ENCODER">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_FORMATTER"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_FORMATTER">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_MAX_ELEMENTS"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_MAX_ELEMENTS">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_MEDIA_ANY"
value="-281474976710656"
c:type="GST_ELEMENT_FACTORY_TYPE_MEDIA_ANY">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_MEDIA_AUDIO"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_MEDIA_IMAGE"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_MEDIA_IMAGE">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_MEDIA_METADATA"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_MEDIA_METADATA">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_MEDIA_SUBTITLE">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_MEDIA_VIDEO"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_MUXER"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_MUXER">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_PARSER"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_PARSER">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_PAYLOADER"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_PAYLOADER">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_SINK"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_SINK">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_SRC"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_SRC">
<type name="gint" c:type="gint"/>
</constant>
<constant name="ELEMENT_FACTORY_TYPE_VIDEO_ENCODER"
value="0"
c:type="GST_ELEMENT_FACTORY_TYPE_VIDEO_ENCODER">
<type name="gint" c:type="gint"/>
</constant>
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