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ffmpeg -re -i rtmp://server/live/streamname \ -c:v rawvideo -pix_fmt uyvy422 -vf scale=720x576 \ -c:a pcm_s16le -ar 48000 -ac 2 \ -f nut - | /bmd/bmdplay -C 0 -m 2 -f pipe:0
Kindly share the exact command to take this rtmp stream to Decklink Studio 4K card(SDI).
As the docs say,
you need the Blackmagic DeckLink SDK and you need to configure with the appropriate --extra-cflags and --extra-ldflags. On Windows, you need to run the IDL files through widl
If so, run
ffmpeg -re -i rtmp://server/live/streamname -c:v rawvideo -pix_fmt uyvy422 -vf scale=720x576 -c:a pcm_s16le -ar 48000 -ac 2 -f decklink "Device"
where Device is to replaced with the name of 'Decklink Studio 4K' as indicated by ffmpeg -f lavfi -i nullsrc -f decklink -list_devices 1 dummy
