Installing ffmpeg for Vivaldi on Manjaro (Arch)

fix_video.sh

# Disclaimer: Works on my machine
# Also, I am aware there is an AUR package, but it seemed out of date.

# From http://security.ubuntu.com/ubuntu/pool/universe/c/chromium-browser/ download the latest version of the ffmpeg codes
# at the time of writing 	chromium-codecs-ffmpeg_76.0.3809.87-0ubuntu0.19.04.1_amd64.deb

# For the sake of sanity create a temp folder first ;-)

# Download latest package
$ curl -O http://security.ubuntu.com/ubuntu/pool/universe/c/chromium-browser/chromium-codecs-ffmpeg_76.0.3809.87-0ubuntu0.19.04.1_amd64.deb

# Extract debian file
$ ar xv chromium-codecs-ffmpeg-extra_76.0.3809.87-0ubuntu0.18.04.1_amd64.deb

# Extract data.tar.xz 
$ tar -xJf data.tar.xz

# Locate where you've installed Vivaldi, when you used AUR it is most likely under /opt/
# Now install the libffmpeg
$ sudo install -Dm644 usr/lib/chromium-browser/libffmpeg.so /opt/vivaldi/libffmpeg.so

# Restart all you Vivaldi instances. To make sure it is working, start it from a terminal first,
# you shouldn't see any messages about missing codecs