[gstreamer-bugs] [Bug 547523] New: alsasrc and alsamixer incorrectly report that GstPropertyProbe is not supported

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: HEAD CVS
           Summary: alsasrc and alsamixer incorrectly report that
                    GstPropertyProbe is not supported
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: laszlok2 at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Please describe the problem:
Using the implements interface method to check if alsasrc implements an
interface other than Mixer results in an Error and program termination. This is
despite the fact that alsasrc *does* support the PropertyProbe interface.

Using the same method to check if alsamixer supports an interface except Mixer
results in a critical assertion and a return value of false, even though
alsamixer also supports the PropertyProbe interface.

Steps to reproduce:
In a python shell:
>>> import gst
>>> aa = gst.element_factory_make("alsasrc")
>>> aa.implements_interface(gst.interfaces.PropertyProbe)
**
** ERROR:(gstalsasrc.c:162):gst_alsasrc_interface_supported: assertion failed:
(interface_type == GST_TYPE_MIXER)
Aborted

In a python shell:
>>> import gst
>>> am = gst.element_factory_make("alsamixer")
>>> am.implements_interface(gst.interfaces.PropertyProbe)

** (.:26954): CRITICAL **: file gstalsamixerelement.c: line 69
(gst_alsa_mixer_element_interface_supported): should not be reached
False
>>>



Actual results:


Expected results:
I expect both queries for gst.interfaces.PropertyProbe to return True.

Does this happen every time?


Other information:


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