gstreamer not finding plugins in Windows

[Rick Thomson]

Have you tried installing the prebuilt windows binary package and seeing if that works, that way you'll be able to compare the contents of the prebuilt package and the paths it sets up with what you've got.

Won't help if the problem is with your built binaries, but at least you'll be able to narrow down any other issues.

Rick 
-----Original Message-----
From: gstreamer-devel-bounces at lists.freedesktop.org [mailto:gstreamer-devel-bounces at lists.freedesktop.org] On Behalf Of Eugen Dedu
Sent: 31 January 2014 16:28
To: Discussion of the development of and with GStreamer
Subject: Re: gstreamer not finding plugins in Windows

On 31/01/14 09:46, Eugen Dedu wrote:
> On 30/01/14 13:05, Josh Doe wrote:
>> On Wed, Jan 29, 2014 at 6:23 PM, Eugen Dedu 
>> <Eugen.Dedu at pu-pm.univ-fcomte.fr> wrote:
>>> Hi all,
>>>
>>> I need gstreamer and its plugins for Windows.  I cross-built with
>>> mingw-w64
>>> gstreamer and gst-plugins-base.  I copied libgstapp-1.0-0.dll, 
>>> libgstbase-1.0-0.dll and libgstreamer-1.0-0.dll and other libraries 
>>> and my .exe to the Windows machine, but I have errors with gstreamer 
>>> not finding some plugin.
>>
>> I've never cross compiled, but my guess is a library dependency issue.
>> Are there really no errors from gst-inspect? Try increasing debugging 
>> with GST_DEBUG=*:3 or so. Also try running Dependency Walker.

I obtained more information about the problem.  I execute gst-inspect... -gst-debug=*:5 and I obtain the following error:
attempt to load plugin "...libgstapp..."
Could not find plugin entry point in ...libgstapp...

so the plugin is found, but there is an error when loading it.

I looked in the code and found that the error is because a symbol is not
found:
   ret = g_module_symbol (module, "gst_plugin_desc", &ptr);
   if (!ret) {
     GST_DEBUG ("Could not find plugin entry point in \"%s\"", filename);

However, grep shows:
snoopy:~/softs/ekiga$ grep -r gst_plugin_desc gst-plugins-base-1.2.2/ Binary file gst-plugins-base-1.2.2/gst/app/.libs/libgstapp.dll matches Binary file gst-plugins-base-1.2.2/gst/app/.libs/libgstapp_la-gstapp.o
matches
gst-plugins-base-1.2.2/gst/app/.libs/libgstapp.dll.def:gst_plugin_desc DATA gst-plugins-base-1.2.2/gst/app/.libs/libgstapp.exp:gst_plugin_desc DATA [...]

so I am lost on what could be wrong here.

Can someone help here?

--
Eugen
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