qtgstreamer build issues - Win32

[Dinesh Kumar]

Hi David,

Thank you very much for your help. I have deleted the registry and tried
the same. The results are same.

I have one strange observation.
           - When there is no *gstqtvideosink(qt gstreamer element) *in the
plugin folder, gst-launch and gst-inspect(displays all the plugins) works
as expected.
          - When the gstqtvideosink is present in the plugin folder,
gst-launch and gst-inspect throw those errors.

          *The moment i remove the gstqtvideosink from the plugin folder,
gst-launch and gst-inspect works as expected. *I think this is enough to
confirm the issue is with qtgstreamer build not the glib/gobject ? Can you
please confirm.

Thanks
Dinesh P

On Fri, Aug 17, 2012 at 11:56 PM, David Hoyt <dhoyt at hoytsoft.org> wrote:

> Seems like either an issue with your glib build or your gstreamer build.
> But you said that gst-launch ran successfully. Were you able to run
> gst-inspect? If so, did it list out all the plugins?
>
> I would first delete the registry and try again. Look for it in
> C:\Users\<account>\.gstreamer-0.10\registry.i586.bin or something like that
> IIRC. I might also try and use the gstreamer SDK, copy the qt gstreamer
> plugins into the plugin folder (typically <installation
> dir>\lib\gstreamer-0.10\ IIRC), their dependencies to the bin\ folder,
> delete the registry file, and try again. That could help isolate whether
> the problem is your glib/gstreamer build or the qt gstreamer build.
>
> But really, the fact that it’s failing on registering “GstObject” is a
> major problem and something doesn’t smell right.
>
> HTH,
> - David Hoyt****
>
> ** **
>
> *From:* gstreamer-devel-bounces+dhoyt=hoytsoft.org at lists.freedesktop.org[mailto:
> gstreamer-devel-bounces+dhoyt=hoytsoft.org at lists.freedesktop.org] *On
> Behalf Of *Dinesh Kumar
> *Sent:* Friday, August 17, 2012 5:28 AM
> *To:* gstreamer-devel at lists.freedesktop.org
> *Subject:* Re: qtgstreamer build issues - Win32****
>
> ** **
>
> Hi, ****
>
> ** **
>
> I have few more pointers to add****
>
> ** **
>
>    -> There were some errors in my qtgstreamer build. (gstqtvideosink did
> not get build). I think this is the cause for the error mentioned in the
> previous mail. I have overlooked the errors, as Cmake and MSVC successfully
> created the player.exe and other binaries :(. ****
>
> ** **
>
>    -> After building gstqtvideosink successfully, I observed a strange
> behaviour. ****
>
>           When I try to run player.exe I got the below errors.****
>
> ** **
>
> *(player.exe:4632): GLib-GObject-WARNING **: cannot register existing
> type `GstObject'*****
>
> *(player.exe:4632): GLib-CRITICAL **: g_once_init_leave: assertion
> `result != 0'failed*****
>
> *(player.exe:4632): GLib-GObject-CRITICAL **: g_type_register_static:
> assertion `parent_type > 0' failed*****
>
> *(player.exe:4632): GLib-CRITICAL **: g_once_init_leave: assertion
> `result != 0'failed*****
>
> *(player.exe:4632): GLib-GObject-CRITICAL **: g_type_register_static:
> assertion `parent_type > 0' failed*****
>
> *(player.exe:4632): GLib-CRITICAL **: g_once_init_leave: assertion
> `result != 0'failed*****
>
> *(player.exe:4632): GLib-GObject-CRITICAL **: g_type_register_static:
> assertion `parent_type > 0' failed*****
>
> *(player.exe:4632): GLib-GObject-CRITICAL **: g_type_register_static:
> assertion `parent_type > 0' failed*****
>
> *(player.exe:4632): GLib-CRITICAL **: g_once_init_leave: assertion
> `result != 0'failed*****
>
> *(player.exe:4632): GLib-GObject-CRITICAL **: g_type_register_static:
> assertion `parent_type > 0' failed\*****
>
> *(player.exe:4632): GLib-CRITICAL **: g_once_init_leave: assertion
> `result != 0'failed*****
>
> *(player.exe:4632): GStreamer-CRITICAL **: gst_element_register:
> assertion `g_type_is_a (type, GST_TYPE_ELEMENT)' failed*****
>
>    ****
>
>  -> Then I tried running gst-launch.exe, I got the below errors. ****
>
> *(gst-launch-0.10:592): GLib-GObject-WARNING **: cannot register existing
> type `GstObject'*****
>
> *(gst-launch-0.10:592): GLib-CRITICAL **: g_once_init_leave: assertion
> `result != 0' failed*****
>
> *(gst-launch-0.10:592): GLib-GObject-CRITICAL **: g_type_register_static:
> assertion `parent_type > 0' failed*****
>
> *(gst-launch-0.10:592): GLib-CRITICAL **: g_once_init_leave: assertion
> `result != 0' failed*****
>
> *(gst-launch-0.10:592): GStreamer-CRITICAL **: gst_element_register:
> assertion `g_type_is_a (type, GST_TYPE_ELEMENT)' failed*****
>
> ** **
>
> *  -> If I remove the "gstqtvideosink" from gst_plugin_path, I can able
> to run the gst-launch successfully. *****
>
>  ****
>
>   -> I think, there is some issue with the "gstqtvideosink". ****
>
> ** **
>
> I am using qtgstreamer-0.10.2. I am new to windows development
> environment. Your pointers could be of great help to me. ****
>
> ** **
>
> Regards****
>
> Dinesh P****
>
> ** **
>
> ** **
>
> On Thu, Aug 16, 2012 at 6:21 PM, Dinesh Kumar <dineshkpadmanaban at gmail.com>
> wrote:****
>
> Hi, ****
>
> ** **
>
> I am not sure, if this is the right forum for this question. I could not
> find any other related forum for qtgstreamer related queries. ****
>
> ** **
>
> I have compiled gstreamer for win32 following the procedure
> http://gstreamer.freedesktop.org/wiki/BuildGStreamerWithMinGWAndMsys****
>
> I have used precompiled binaries for all the packages, except gstreamer as
> I have modified the source. ****
>
> I can able to run gst-launch successfully.****
>
> ** **
>
> I have compiled qtgstreamer following the procedure
> http://gstreamer.freedesktop.org/wiki/QtGStreamer/BuildingOnWindows.  I
> had issues in CMake finding my gstreamer installation path, since msys
> environment build system did not generate .lib files.  I have generated
> .def and .lib using "dumpbin" and "lib" tools and compiled qtgstreamer
> successfully. ****
>
> ** **
>
> When I try to run qtgstreamer examples (player, recorder, voip), I get
> following errors. ****
>
> ** **
>
> *(player.exe:4232): GLib-GObject-WARNING **: cannot register existing
> type `GstOject'*****
>
> *(player.exe:4232): GLib-CRITICAL **: g_once_init_leave: assertion
> `result != 0'failed*****
>
> *(player.exe:4232): GLib-GObject-CRITICAL **: g_type_register_static:
> assertionparent_type > 0' failed*****
>
> *(player.exe:4232): GLib-CRITICAL **: g_once_init_leave: assertion
> `result != 0'failed*****
>
> *(player.exe:4232): GLib-GObject-WARNING **: interface type
> `GstImplementsInterfce' or prerequisite type `<invalid>' invalid*****
>
> ** **
>
> I double checked that GST_PLUGIN_PATH is set correct. I have also cross
> checked by successfully launching gst-launch on the same shell. ****
>
> Please help me. Do I need to set anyother env variables? ****
>
> ** **
>
> Thanks****
>
> Dinesh P****
>
> ** **
>
> ** **
>
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