On Sun, Jan 06, 2019 at 17:16:14 +0100, Ulf Zibis wrote: > [AVFilterGraph @ 0x55a6153dafa0] No such filter: 'fillborders' This filter was added in November 2017. 4.0 was the first ffmpeg release it was included in. Please use a recent version of ffmpeg to get better support here (preferred: laster git master). Moritz