Embedding Videos into Powerpoint

 From this article, we know that .pptx is pretty finicky:

https://support.microsoft.com/en-us/office/video-and-audio-file-formats-supported-in-powerpoint-d8b12450-26db-4c7b-a5c1-593d3418fb59

I prefer to keep things simple and not depend on having access to quicktime. Thus, .wmv it is.

This person found a way to trigger ffmpeg to output wmv:

https://walterebert.com/blog/creating-wmv-videos-with-ffmpeg/

>> ffmpeg -i intput.mp4 -b:v 2M -vcodec msmpeg4 -acodec wmav2 output.wmv

(don't know what all the flags do)

Seems to work reliably for what I need