ffmpeg: Unable to find a suitable output format for '–i'

Question

I am not sure why, but I cannot seem to get a watermark rendered on the bottom right corner of my video using ffmpeg.

I am using the following command:

$ ffmpeg –i faded.mov -vf "movie=logo2.png [watermark]; [in][watermark] overlay=(main_w-overlay_w-10)/2:(main_h-overlay_h-10)/2 [out]" outputvideo3.mov
...
[NULL @ 0x7fa2ec001000] Unable to find a suitable output format for '–i'
–i: Invalid argument

Solution

Use - (hyphen), not – (en dash).

• Correct: -i
• Incorrect: –i