[FFmpeg-user] Decklink SDI Closed Captions / teletext capture

[Carl Eugen Hoyos]

2017-11-10 21:44 GMT+01:00 Ross Currie <ross at isilive.ca>:
> Has anyone had any success capturing closed captions text from SDI using a
> decklink card?
>
> I'm having trouble getting any data from the subtitles stream.
>
> I'm trying a command like this:
>
> ffmpeg -txt_format text -raw_format yuv422p10 -format_code ntsc

The documentation (and the commit message) indicate that only
pal is currently supported.
https://www.ffmpeg.org/ffmpeg-devices.html#decklink
https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=cc0916bf

Carl Eugen