I have built ffmpeg with decklink support, it plays my mpg file fine out the SDI but not seeing any captions on my works broadcast monitor (JVC DT-V17G1Z). This monitor shows captions on SDI from my Mojito card but trying to get it to work with a BlackMagic 4k extreme. The mpg file has embedded 608 and 708 captions. Using the to play-
ffmpeg -i C:\video\RD2838_720p.mpg -f decklink -pix_fmt uyvy422 "DeckLink 4K Extreme"
MediaInfo on captinos:
Text #1
ID : 4096 (0x1000)-CC1 Menu ID : 1 (0x1) Format : EIA-608 Muxing mode : A/53 / DTVCC Transport Muxing mode, more info : Muxed in Video #1 Duration : 28 min 30 s Bit rate mode : Constant Stream size : 0.00 Byte (0%) Language : English CaptionServiceName : CC1
Text #2 ID : 4096 (0x1000)-1 Menu ID : 1 (0x1) Format : EIA-708 Muxing mode : A/53 / DTVCC Transport Muxing mode, more info : Muxed in Video #1 Duration : 28 min 30 s Bit rate mode : Constant Stream size : 0.00 Byte (0%) Language : English
How do I get the Decklink 4k to pass the captions? Thanks!