c_gst_buffer_pool_config_get_allocator

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
int function(GstStructure* config, GstAllocator** allocator, GstAllocationParams* params) c_gst_buffer_pool_config_get_allocator;

Meta