Capture can be as simple as taking a photo, or shooting a single video clip.
It can be as complex as setting up multiple cameras with many audio channels from an array of microphones feeding a a multi-channel digital audio mixing unit.
All the capture for a given video editing sequence might come from many different sources at different times – the idea of the “B-roll” for film footage is a good example.
“Non-linear” editing software allows “importing” and pulling all of these pieces together, manipulating them, and assembling them in wonderfully creative ways – all without “cutting” any of the original material!
This is the essence of the ‘post-production’ process – a work of hours, days, or weeks.