Fix a failure to build due to incompatible pointer types.
- Adds cast to
GstMiniObject **where needed - Remove volatile from arguments
g_clear_pointeris not thread-safe and never was. GLib similarly removed the volatile from g_clear_object.
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Fix a failure to build due to incompatible pointer types.
GstMiniObject ** where neededg_clear_pointer is not thread-safe and never was. GLib similarly removed the volatile from g_clear_object.