crash when trying to use gst.RegisterAPIType

[Philippe-Torrelli-Ale]

Hello, i'm trying to add custom meta data into a buffer and have a problem calling RegisterAPIType .

When I do something like
t := gst.RegisterAPIType("NewObjectType", []string{"sometag"} )
the calling program crashes (no stack).

I think gcharStrings has a few major problems

func gcharStrings(strs []string) **C.gchar {
	gcharSlc := make([]*C.gchar, len(strs)) // <- shouldn't it be alloced by the c allocator ? also, it won't be nil terminated
	for _, s := range strs {
		cStr := C.CString(s)
		defer C.free(unsafe.Pointer(cStr)) // <- this will cause the pointed array of char to be freed before we even use the array
		gcharSlc = append(gcharSlc, cStr)
	}
	return &gcharSlc[0]
}

this gcharStrings() function is also called by FilterProtectionSystemByDecryptors() and SelectProtectionSystem()
I am also confused by the fact that the caller calls C.free on the returned object which is &gcharSlc[0]..

[RSWilli]

@Philippe-Torrelli-Ale move this issue to https://github.com/go-gst/go-gst (where future development of the bindings will take place) if you think it is necessary.