Function stainless_ffmpeg_sys::avfilter_process_command

pub unsafe extern "C" fn avfilter_process_command(
    filter: *mut AVFilterContext, 
    cmd: *const c_char, 
    arg: *const c_char, 
    res: *mut c_char, 
    res_len: c_int, 
    flags: c_int
) -> c_int

Make the filter instance process a command. It is recommended to use avfilter_graph_send_command().