[FFmpeg-user] Overlay images to frames in video

[Rainer M Krug]

Thanks a lot - these are the things I was afraid of missing.

 I will change it and use 'overlay=x=0:y=0’ for clarity. 

Rainer

> On 8 Apr 2021, at 09:45, Michael Koch <astroelectronic at t-online.de> wrote:
> 
> 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.
> 
> Michael
> 
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--
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany)

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