Mine usually take a couple of weeks after moving into the breeding tank to settle down, build their nest and actually lay eggs. I use gravel on the bottom of the tank to give them something to build their nest in.
All of my successful breedings were at water temperatures of 80F and I've never had temps over 82F. Looks like they are using that pot as their 'nest' which should be fine, just make sure they have room to get in and out of it. Your water looks very cloudy in the video, but it might just be the side of the tank I'm seeing.
Not much magic in tilapia breeding - just clean warm water, a place for them to nest and patience. Once the eggs are layed and she is holding well, I remove all the fish except the one holding eggs. Once I see the fry swimming around I remove the mom as well.
When my female tilapia get swollen bellies I do a 30% water change and bam that day or the next day ... mouth full of eggs...