On Wed, 29 Aug 2018, Mustafa Al Ani wrote: > ffmpeg -f libndi_newtek -i "MED-GW-01 (IO-ENC-01-NDI-01_VR)" -f > decklink 'DeckLink Duo (1)' Try requesting an explicit field order on the output, e.g.: -field_order tt Regards, Marton