TrafficXXXL

I want to use ffmpeg (which is already installed on my server) to add a watermark on videos in the left top corner of all videos. (if there is other better solution let me know)
I checked and the command is like this: ffmpeg -i movie.mp4 -i logo.png -filter_complex overlay output.mp4
Is there a way i can use this command from browser? I mean i upload few videos in a folder (ex: sitename.com/folder/), upload a watermark.png file and then access in browser a page (ex: sitename.com/folder/videowatermark.html ) which gives the command and then all videos (which have the same size and extension ) from the folder to get the watermark.

Can somebody do this?