Function avfilter_graph_create_filter 

pub unsafe fn avfilter_graph_create_filter(
    _filt_ctx: *mut *mut AVFilterContext,
    _filt: *const AVFilter,
    _name: *const c_char,
    _args: *const c_char,
    _opaque: *mut c_void,
    _graph_ctx: *mut AVFilterGraph,
) -> c_int