Modifies a pointer to a Gst.Context to point to a different Gst.Context. The
modification is done atomically (so this is useful for ensuring thread safety
in some cases), and the reference counts are updated appropriately (the old
context is unreffed, the new one is reffed).
Either new_context or the Gst.Context pointed to by old_context may be null.
Modifies a pointer to a Gst.Context to point to a different Gst.Context. The modification is done atomically (so this is useful for ensuring thread safety in some cases), and the reference counts are updated appropriately (the old context is unreffed, the new one is reffed).
Either
new_contextor the Gst.Context pointed to byold_contextmay benull.