```
Kalturadl
=========

Download and compress lecture videos from Kaltura on Canvas

Right-click the video and select "Inspect" or press Ctrl + Shift + I. Go to
the "Network" tab. Play the video for 1-2 seconds, then pause it. Copy the
"index.m3u8" URL from the Network tab.

Download the video: `bash dlm3u8.sh <m3u8_url> <output.mkv>`

Compress the video to 480p: `ffmpeg -i <input.mkv> -vf "scale=-1:480" -c:v 
libvpx-vp9 -crf 30 -b:v 0 -cpu-used 4 -c:a aac -b:a 128k <output.mkv>`

Archive all videos and course materials into a single file: `tar -cvpf -
<course_folder>/ | zstd -3 -o "<course_name>_$(date +'%Y%m%d_%H%M%S').tar.
zst"`
```