>>4220288I'm unsure of posting links on /c/ but if you search "VLC Image Sequence" or "VLC to PNG Sequence" you should be able to get it. I believe there's a scene filter setting in advanced settings that lets you set the exports, while setting the recording ratio to 1 promises you'll get every frame while the video is playing.
Just remember that while it is playing it will record images whether she is in them or not. Chihiro for me I was lucky (in this situation anyways)since she only has a few cameos in all of Persona anime, but for you prepare to do a whole rewatch and turn the settings off and on.