File Meta Source blocks_file_meta_source from gnuradio import gr, blocks blocks.file_meta_source($file, $repeat, $detached, $hdr_file) open($file, $repeat) Output Type type enum Complex complex size:gr.sizeof_gr_complex Float float size:gr.sizeof_float Int int size:gr.sizeof_int Short short size:gr.sizeof_short Byte byte size:gr.sizeof_char File file file_open Repeat repeat True enum Yes True No False Detached Header detached False enum Yes True No False Header File hdr_file file_open Vec Length vlen 1 int out $type $vlen