More SEGFAULT safety

[RSWilli]

closes #61

This removes all uses of uintptr across the bindings and also fixes a possible GC related SIGSEGV in glib.SetProperty with go-gst/go-glib#3

[RSWilli]

see also: go-gst/go-glib#3

[RSWilli]

I have this commit pinned in my application and I will test it for some time. But as said before, I cannot test all features touched in this PR.

Surprisingly in my application this didn't introduce any breaking changes.

[RSWilli]

First Feedback on this PR:

The following graph shows the audio gain produced by ~40 instances of my application, you can clearly see the anomalies where the segfaults happened. You can also clearly see that the fix worked:

I'll keep a look at it, but given the amount of aggregated runtime over this period, I'm pretty happy with it.

As I said, this didn't introduce any breaking changes in my app. @danjenkins maybe try to use this branch in one of your applications, to see if anything breaks.

[RSWilli]

with the addition of eeb454d I would be happy to merge this. The changes drastically improve stability in my case and do not produce any go:vet issues in go-gst/go-glib anymore

Maybe we should merge glib first and pin the dependency to the commit on main?

[danjenkins]

I'm good with that - we still haven't done a proper release yet so I think now's a good time to just do it and see!

[RSWilli]

merged the go-glib change and used the new go-glib version in this project,

merging.