Hello world and hello ffmpeg-user list!

We have roughly 30TB of v210 (uncompressed 8 bit 4:2:2 PAL) Quicktime mov video 
files, created when digitizing tape. We would like to transcode these to 
FFV1/MKV for archival purposes.

However, when I’m doing a transcode like this:
ffmpeg -i input_file -map 0 -dn -c:v ffv1 -level 3 -g 1 -slicecrc 1 -slices 16 
-c:a copy output_file.mkv
…. I lose the time code stream (and from what I understand, it’s better not 
to). How can I retain it? 

* the command is from 
https://amiaopensource.github.io/ffmprovisr/#create_FFV1_mkv

* below is the output of ffmpeg -i input_file.mov

 Stream #0:0[0x1](eng): Video: rawvideo (2vuy / 0x79757632), 
uyvy422(smpte170m/bt470bg/bt709, top coded first (swapped)), 720x576, 165888 
kb/s, SAR 16:15 DAR 4:3, 25 fps, 25 tbr, 25 tbn (default)
      Metadata:
        creation_time   : 2023-08-03T15:09:19.000000Z
        handler_name    : ?Apple Video Media Handler
        vendor_id       : KeyG
        encoder         : Uncompressed 8-bit 4:2:2
        timecode        : 10:43:59:02
      Side data:
        Frame cropping: 8/9/0/0
  Stream #0:1[0x2](eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, 
stereo, s16, 1536 kb/s (default)
      Metadata:
        creation_time   : 2023-08-03T15:09:19.000000Z
        handler_name    : ?Apple Sound Media Handler
        vendor_id       : [0][0][0][0]
        timecode        : 10:43:59:02
  Stream #0:2[0x3](eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
      Metadata:
        creation_time   : 2023-08-03T15:09:19.000000Z
        handler_name    : Time Code Media Handler
        reel_name       : 696_komp_fits_komp_52_betasp
        timecode        : 10:43:59:02
  Stream #0:3[0x4](eng): Subtitle: eia_608 (cc_dec) (c608 / 0x38303663) 
(default)
      Metadata:
        creation_time   : 2023-08-03T15:09:19.000000Z
        handler_name    : ?Closed Caption Media Handler

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