[FFmpeg-user] drawtext timecode from metadata

[Bouke]

trying to capture and burn in TC at the same time.
Burn in TC works if I specify the start TC, but I can’t probe and then record, as that takes time so the TC will be off.
So I’m hoping to set the drawtext filter on the fly, I tried:
drawtext=timecode=%{metadata\\\:timecode}:

-filter_complex "[0:0]drawtext=timecode=%{metadata\\\:timecode}:fontfile='/Volumes/Data/fonts/courbd.ttf':r=25:x=(w-tw) - (w * 0.02): y=h-(2*lh):fontsize=54.0:fontcolor=white” 

This does not work, gives me:
[Parsed_drawtext_0 @ 0x7ff9fbe0cb40] Unable to parse timecode, syntax: hh:mm:ss[:;.]ff

Is there a way to do this?

thx,
Bouke