Split video or export keynote slides separately I have a problem I am struggling for 2 days. Maybe someone can give me some light.
I made a huge keynote presentation (100 slides), with videos and animations. I expected to have one small exported video for each slide.  It seemed a good idea at first, but now I see I cannot export each slide separated automatically. So I tried to export all slides with the same timing in Keynote and then split in equal parts using ffmpeg, but keynote does not export the video with exact timing between slides. Then I advanced a little and tried to detect scene changes using ffmpeg (which I did and got a list of timestamps), but when splitting with ffmpeg the keyframeimage is never on the first frame making the videos unusable. Now I was searching for a solution using Mac automate, but it seems it does not have the right Keynote functions... I know that doing it manually would work, but exporting in keynote is slow and it would take hours, and maybe I will have to edit all the slides and export again. I have most of the professional video tools (final cut pro and adobe premiere/after effects.
I think your best bet for splitting the video is going to be to manually razor it in a video editor of your choice.  You can then either use a clip exporter in the editing tool if it has it or export an EDL and use that with something like ffmpeg to do the splitting for you.