is there a way to manipulate (pad, slice) a computed PTS timestamp within ffmpeg / drawtext?
The FFMPEG does not support strtime %f option; therefore, the fractional second works with AVTB only. The parameter is
-filter_complex &quot;drawtext=fontsize=90:x=20:y=20:text='pts=%{pts\:gmtime\:0\:%S %f} AVTB=%{eif\:trunc(t)\:d\:2}.%{eif\:(1M*t-1M*trunc(t))/10000\:d\:2}':box=1&quot;

and the result is