[FFmpeg-user] Overlay images to frames in video

Michael Koch astroelectronic at t-online.de
Thu Apr 8 10:45:35 EEST 2021

Am 08.04.2021 um 09:27 schrieb Rainer M Krug:
> ffmpeg -i ‘background_movie.avi' -i 'overlay.avi' -filter_complex 
> 'overlay=0x0’ ‘final_movie.avi’ 

I think overlay=0x0 is not doing what you expect. It does set the x 
option to hexadecimal 0, and it doesn't specify the y option. In your 
case that doesn't matter because the default values are 0. You could 
write 'overlay=x=0:y=0' or you could simplify it to just 'overlay' 
without any options.


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