Oh I see. My problem is, the LAV decoders dont show up in the drop down box. I downloaded LAV filters from the github link and installed using the audio, splitter, & video bat files.
EDIT: Problem solved. I used LAVFilters-0.72-Installer.exe instead of the github download.
EDIT: Problem solved. I used LAVFilters-0.72-Installer.exe instead of the github download.