Export GStreamer variables

[probonopd]

• https://developer.gnome.org/gstreamer/stable/gst-running.html
• Add GStreamer support probonopd/linuxdeployqt#96
• Plugin for GStreamer linuxdeploy/linuxdeploy#80
• https://github.com/GStreamer/gstreamer/blob/master/scripts/gst-uninstalled

[TheAssassin]

How/why will this be useful to anyone? Shouldn't we try to get rid of AppRun.c since it has some annoyances like chdir()ing around?

In any case it looks good but have you test-run it? I have no time right now, someone should try though to make sure there's no segfaults or anything.

[probonopd]

Yes, we don't want to use it if we don't have to. But I don't know how to tell Gstreamer to look for privately bundled plugins without using environment variables. Do you?

[TheAssassin]

linuxdeploy is going to solve this problem soon-ish.

Not saying we can't merge this. The opposite is true. If you can guarantee AppRun is running and doesn't break, sure, let's do. Just wanted to mention it's probably not going to reach anyone really.

[probonopd]

linuxdeploy and linuxdeployqt are (currently) not using AppRun.c at all, I know.

[TheAssassin]

Have you tried this at least before merging? Does the build product even run? Or did you just merge and hope for the best?

[probonopd]

Merge and hope for the best. Will revert in the second it creates problems.

[TheAssassin]

I guess just downloading it and running will make sure it'll work.

[TheAssassin]

Seems to work.

[vadi2]

How can one make use of this to get GStreamer plugins loaded with linuxdeployqt? Using linuxdeployqt de6d873 (commit 6e359c5), build 689 built on 2019-05-10 17:10:54 UTC, they still aren't (log).

[probonopd]

linuxdeployqt does not make use of this yet. One would have to deploy all needed GStreamer plugins manually (using executable=...) and use an AppRun that would set the GStreamer environment variables.

[vadi2]

That makes sense, thanks for explaining.