[HELP] image squence can't use

[todo635387]

I copy the code to cmd，it appeared error:

Stream #0:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 3840x2160 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
[NULL @ 0000025637b6a3c0] Unable to find a suitable output format for 'scale=out_range=pc'
scale=out_range=pc: Invalid argument
y4m: failed to parse y4m header.
failed to initialize file reader(s).
Failed to open input file.


And I delet "scale=out_range=pc",it can work normally.