I tried today, after deploying of r65889 with oggThumb enabled, to create a thumbnail of a video with a floating point thumbtime:

[[File:Parus major, Germany 2009.ogv|thumb|thumbtime=2.5|Parameter thumbtime=2.5. No thumbnail is shown]] (see URL)

If I read r65563 correct that should be possible now: "Allow seek times to be non-integers, rounded to the nearest 0.1s"

Version: unspecified
Severity: normal
URL: http://test.wikipedia.org/wiki/User:Raymond/thumbtime