Apostrophe

Apparently for some odd reason, it is close to impossible to use apostrophes inside input files for complex filters, as ffmpeg hates this. I’m not sure why, and I’ve tried several ways to replicate it through bash, but the only way was to put quotes around the input file itself. The reason for this is still unknown, so I opt for a temporary solution by creating a temporary symbolic link to the input file and try it that way. No idea if this may have any issues for streaming data through pipe, but apparently it works.