How to convert PPTX to mp4 in ruby on rails

Question

**I am using ruby 1.9.3 it would be helpful if i can get any gem name or method to convert the .ppt to .mp4

Are you really still using Ruby 1.9.3 and a Ruby on Rails 3.x version? Both are outdated for at least 5 years. — spickermann, Mar 30 '20 at 15:05
yes we are on track on latest one... but existing project is going on — Sanket, Mar 30 '20 at 15:39

PGill · Answer 1 · 2020-03-31T10:21:53.953

PPTX >> PNG >> MP4

You can use docsplit gem to convert PDF to PNG

Docsplit.extract_images('test.pdf', :format => [:png])

and ffmpeg to convert PNGs to MP4.

ffmpeg -framerate 1/5 -i img_%d.png -c:v libx264 -vf scale=1280:-2 -pix_fmt yuv420p output.mp4

if your player cannot handle a non-standard frame rate add -r 30 eg. VLC

ffmpeg -framerate 1/5 -i img_%d.png -r 30 -c:v libx264 -vf scale=1280:-2 -pix_fmt yuv420p output.mp4

check docs for more

1 Answers1