Unable to create qpfile using x265

[Former user]

I am trying to create a qpfile with the following script.

FILEPATH\ffmpeg -i FILEPATH\Feature_UHDSDR_80548088_5minTest.mov -an -pix_fmt yuv420p10le -f rawvideo - | FILEPATH\x265-64bit-10bit-2017-12-04.exe --input-res 3840x2160 --input-depth 10 --input-csp 1 --colormatrix bt709 --colorprim bt709 --transfer bt709 --fps 24000/1001 --pass 1 --repeat-headers --no-open-gop --preset faster --profile main10 --bitrate 13700 --vbv-maxrate 13700 --vbv-bufsize 13700 --keyint 100 --min-keyint 24 --no-b-pyramid --frame-threads 0 --stats FILEPATH\Feature13700_2pass.log --qpfile FILEPATH\feature.qp --aud --output NUL -

This command does not generate the qpfile. Am I using this correctly to create the qpfile?

[Aruna Matheswaran]

x265 will not generate any qpfile when --qpfile <filename> is given in the CLI. It expects <filename> as an input. Please refer x265 documentation for detailed understanding - http://x265.readthedocs.io/en/default/cli.html#cmdoption-qpfile