Is it correct to apply a watermark?

Question

fmpeg

I have this code

FFmpeg -i c:/tv/1.mp4 -i c:/tv/logo5.png -filter_complex overlay="(main_w/4)-(overlay_w/1):(main_h/6)-(overlay_h/1)" c:/tv/10.mp4

It imposes a watermark well, but the problem is that sometimes the watermark goes to the left for part 3, how can I fix it so that it is always under a different video.
It needs to be top right, indent 1 and left 1. With different video formats.

Answer 1

I did not quite understand the question, or it is really too simple: just correct the arithmetic. Something like this:
For details:
https://ffmpeg.org/ffmpeg-filters.html#overlay-1