This is the first two days of the floor installation. They also came back for a third full day of sanding, but that wasn't very interesting to watch; and now we're going to paint it, which will take another day or two.
(We do have an older video where you can watch paint dry, if you're in to that sort of thing.)
We set up a laptop recording 24/7 all weekend with OBS, and that generated a 98 GB TS file. Fun fact: guess what Quicktime Player, VLC and ffmpeg really don't like to deal with? That's right, 98 GB TS files. So my plan to just scrub through it and find the timestamps to extract didn't work because no player would let me scrub. I ended up splitting it into 10 minute segments with:
- -map 0 -f segment -segment_time 10 -reset_timestamps 1 $encode_options
With "-codec copy" it wouldn't split at all, so I had to re-encode it. Then I was able to manually page through and delete the segments that were in the middle of the night. Next, I time-lapsed like this:
- -f concat -i file_list.txt -vf 'tblend=average, setpts=PTS*0.01, tmix=frames=30' -r 30 $encode_options
The "tblend" filter is what gives the ghostly motion-blur effect on the people walking around. Without that, time lapses have a much more flickery, stuttery quality to them.
That final encode took twenty hours to convert 22 hours of source video into a 13 minute time lapse on a 3.2 GHz iMac Pro. So this is maybe not the ideal procedure.