Function gst_ query_ add_ allocation_ param 
Source pub unsafe extern "C" fn gst_query_add_allocation_param(
    query: *mut GstQuery,
    allocator: *mut GstAllocator,
    params: *const GstAllocationParams,
)pub unsafe extern "C" fn gst_query_add_allocation_param(
    query: *mut GstQuery,
    allocator: *mut GstAllocator,
    params: *const GstAllocationParams,
)