OK, continuing my quest to avoid sports spoilers and getting Plex Media Scanner to work I can now add videos to my library from the command line.
However, it appears that the options for thumbOffset and artOffset are not behaving as documented. Initially all my tests were done as re-scans of existing videos or deleting and re-adding a video. These all appear not to change the time-line of the snapshots or even the number of snapshots taken, 3, because I suspect once Plex has scanned a video previously, it continues to “remember” certain information, even if the video is deleted and re-added.
So, I’m now trying to add a brand new video using this command line:
/usr/lib/plexmediaserver/Plex\ Media\ Scanner -s -c 5 --thumbOffset 1 --artOffset 1 -v -p
Well, it obviously did something different, because it only generated a single image in the Thumbnail and Art directories, instead of the normal three. But then checking those images, my initial joy at thinking I had got my wish was crushed when I looked at them. The were not captured at 1% like I specified, but at 50%. Still better than the 75% I had been seeing, but still not acceptable.
Cheers.