Using --external-downloader you might be able to use a script. Depending on the output you might also be able to use --skip-download or --simulate. In Theory using the variable in -o should include it in the json.
Using --external-downloader you might be able to use a script. Depending on the output you might also be able to use --skip-download or --simulate. In Theory using the variable in -o should include it in the json.