On Mon, Jan 3, 2022 at 3:00 PM Matt C <[email protected]> wrote: > Have tried these lines, they all play fine out the SDI but no captions show:
I haven't tried your actual files, but there are two likely issues here: 1. Your ffmpeg build needs to be compiled to make use of the libklvanc library. That is necessary to produce the SDI VANC data that makes up the CEA-708 captions. https://github.com/stoth68000/libklvanc 2. You must use the v210 codec. If you use "-pix_fmt uyvy422" that puts the decklink output into 8-bit mode, which won't work with 10-bit VANC (as required for CEA-708). Regards, Devin -- Devin Heitmueller, Senior Software Engineer LTN Global Communications o: +1 (301) 363-1001 w: https://ltnglobal.com e: [email protected] _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
