[FFmpeg-user] Plotting Circles and labels on individual frames of a movie

Nicolas George george at nsup.org
Thu Apr 8 11:58:33 EEST 2021

Rainer M Krug (12021-04-08):
> I have found “draw_text”
> (https://ffmpeg.org/ffmpeg-filters.html#drawtext), but I have no idea
> how I could do this. We can assume that I have a text file with the
> following columns:
> FRAME: the frame on which the labels and circle should be plotted
> X:     the x-coordinate
> Y:     the y=coordinate
> LABEL: label for the point
> Also possibly important, there are multiple (many) particles for which
> circles and labels need to be plotted on each frame. 

This looks like something ASS subtitles can do easily.


  Nicolas George
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