Post AOTx60CFsTKFMziKcC by nebunez@fosstodon.org
 (DIR) More posts by nebunez@fosstodon.org
 (DIR) Post #AOTx5yKgo8sraZe2U4 by nebunez@fosstodon.org
       2022-10-12T01:35:56Z
       
       0 likes, 1 repeats
       
       I'm looking to do some #video post processing where I draw a trail behind a selected object as it moves around the video over time. I'd like to use #Guile or #Racket --does anyone know if there are libs to support this?In my head the algo is:- foreach frame in video:  - find center position of object  - add position to tracer list  - foreach tracer in tracer list:    - draw tracer on frameI have zero experience working with video, so no existing ties to language/lib
       
 (DIR) Post #AOTx60CFsTKFMziKcC by nebunez@fosstodon.org
       2022-10-12T02:26:16Z
       
       0 likes, 0 repeats
       
       My next thought is now to extract the frames using #ffmpeg and then process each frame in Racket, since Racket has a pretty intuitive image loading/drawing/writing workflow.