Still photo video maker

@echo off
title Single Photo VP9 Video Maker
color 0b
echo This program will make a video from only a single image file and sound file.
echo.
set /p IMGFILE=Drag image here:
set /p AUDFILE=Drag audio here:
set /p OUTFILE=Type output file name (.webm):
ffmpeg -loop 1 -i %IMGFILE% -i %AUDFILE% -c:v libvpx-vp9 -c:a libopus -b:a 128k -pix_fmt yuv420p -shortest %OUTFILE%