Invalid GObject signal error while running Gstreamer-1.0 with GTK+3

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Invalid GObject signal error while running Gstreamer-1.0 with GTK+3

Shaf
I am trying to execute the "Basic tutorial 5: GUI toolkit integration" source
from the documentation.
https://gstreamer.freedesktop.org/documentation/tutorials/basic/toolkit-integration.html?gi-language=c

The GTK and Gstreamer setups is done as below:
           OS : Windows 10 64-bit
1. GTK+3 is installed using vcpkg
2. Gstreamer (ver 1.16) is installed using the official gstreamer downloads
3. Gstreamer libraries are added to the the environment variables using
GST_PLUGIN_PATH
4. The source code is setup in visual studio 2019
5. Gstreamer property sheets are added
 (Note : gstreamer-video-1.0 and gstreamer-1.0 props are only added,
gtk+-3.0 is integrated to Visual studio using vcpkg)

The code compiles and executes, but the output is not as expected. GUI is
displayed, but the gstreamer pipeline is played in a separate sink windows.

There are several errors in the console.

GLib-GObject-WARNING **: 11:43:34.893: ../gobject/gsignal.c:2523: signal
'delete-event' is invalid for instance '0000028AE19B1640' of type
'geo-location-elevation'
GLib-GObject-WARNING **: 11:43:34.893: ../gobject/gsignal.c:2523: signal
'realize' is invalid for instance '0000028AE1921210' of type 'JPEG
interchange format plugin'
GLib-GObject-WARNING **: 11:43:34.893: ../gobject/gsignal.c:2523: signal
'draw' is invalid for instance '0000028AE1921210' of type 'JPEG interchange
format plugin'
GLib-GObject-WARNING **: 11:43:34.893: ../gobject/gsignal.c:2523: signal
'clicked' is invalid for instance '0000028AE3FD3180' of type
'application/x-gst-av-wtv'
GLib-GObject-WARNING **: 11:43:34.893: ../gobject/gsignal.c:2523: signal
'clicked' is invalid for instance '0000028AE3FD3340' of type
'application/x-gst-av-wtv'
GLib-GObject-WARNING **: 11:43:34.893: ../gobject/gsignal.c:2523: signal
'clicked' is invalid for instance '0000028AE3FD3500' of type
'application/x-gst-av-wtv'
GLib-GObject-WARNING **: 11:43:34.893: ../gobject/gsignal.c:2523: signal
'value-changed' is invalid for instance '0000028AE3DECD80' of type
'application/ogg'

The errors seems like Glib-GObject is unable to process the signal_connect
for GTK objects. I am able to execute GTK samples separately without adding
the gstreamer compiler or linker libraries to visual studio.

When I manually add the linker and compiler dependencies of GTK and
Gstreamer in Visual studio, I get the signal_connect errors for gstreamer
objects.
eg: signal 'media-configure' is invalid for instance '0000026441B40280' of
type '(NULL)'

How can I fix the GObject reference issue ?
At run-time, how is the GObject referenced by GTK and Gstreamer code ?


I am not an expert in visual studio and C therefore finding it hard to
resolve the library/dll reference issue.






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Re: Invalid GObject signal error while running Gstreamer-1.0 with GTK+3

Shaf

Can someone help me on this ? I am stuck with this issue for past few weeks.




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