Render

@ECHO OFF

:LOOP
rem check first argument whether it is empty and quit loop in case;
rem `%1` is the argument as is; `%~1` removes surrounding quotes;
rem `"%~1"` therefore ensures that the argument is always enclosed within quotes:
if "%~1"=="" goto :END
rem the argument is passed over to the command to execute (`"%~1"`):
ffmpeg -i "%~1" -preset ultrafast -metadata author=Vincent -metadata:s handler_name="Produced by Vincent" -vf drawtext=fontfile='c\:\\Windows\\Fonts\\comicbd.ttf':text='@VincentNews':fontcolor=white@0.6:fontsize=24:x=w-text_w-text_h:y=text_h -c:a copy "%~1.Render.mp4"
rem `shift` makes the second argument (`%2`) to be the first (`%1`), the third (`%3`) to be the second (`%2`),...:
shift
rem go back to top:
goto :LOOP
:END