[souphttpsrc] TLS/SSL support not available on Win32

Submitted by Tao

Link to original bug (#794425)

Description

Hello,

It's my first bug report on gnome, so please don't blame me. This bug report is a followup of https://github.com/ua-i2cat/gst-unity-bridge/issues/36

My goal is to play live HLS stream in unity, for this I use GStreamer Unity3D Bridge. This library obviously rely on GStreamer. But gstreamer looks to be unable to perform an HTTPS request with following message:
souphttpsrc gstsouphttpsrc.c:1279:gst_soup_http_src_parse_status:<souphttpsrc2> error: TLS/SSL support not available; install glib-networking (6), URL: https://protectedurl/forthisbugreport, Redirect to: (NULL)

The old discussion on gstreamer dev mailing list http://gstreamer-devel.966125.n4.nabble.com/Queries-about-libgstsouphttpsrc-td4667605.html suggests to simply add libgiognutls.dll to my project, but it did not fix my problem. Notice I also tried to put libgiognutls.dll in windows system32 dir.

This bug is reproducible with GStreamer 1.13.91.

Kind regards,

Laurent.

Version: 2.x