ffmpeg decklink mini monitor select output

Hello,


Can anyone tell me how I can switch to the SDI output on my mini monitor card using ffmpeg ?

-list_devices :
[decklink @ 0x378c600] Blackmagic DeckLink devices:
[decklink @ 0x378c600] 'DeckLink Mini Monitor'

By default, the video is played on the HDMI interface of the card:
ffmpeg -i clip.mp4 -f decklink -ar 48000 -pix_fmt uyvy422 -s 1920x1080 -r 30000/1000 'DeckLink Mini Monitor'

How do I tell ffmpeg/blackmagic to use the SDI interface?

I tried setting Enable3GbsSDIOutput to "1" in /etc/blackmagic/BlackmagicPreferences.xml but it doesn't help.


Thanks,

Damien