need help with bizarre dji frame rates

[Selur]

I haven't owned a mac for years, and gave up on trying to get MacOS running in a VM since it was slow and always a burden trying to get it running stable and up-to-date.
Sadly, neither of those options were available in that old version.

Another thing you can try, is to:

• enable "Config->Internals->Handling->Ignore all input timecodes" (before loading the source)
  
• enable "Config->Containers->MP4->FFmpeg instead of MP4Box
  
• set "Base->Processing->Video to passthrough"
  
• enable "Muxing->Overwrite->Frame rate" to "23.976"
  

This will drop the time codes and set the container frame rate to 23.976, depending on what you want to do with the file that might already help you.

You can also try whether calling ffmpeg directly with something like:

ffmpeg -i <path to input file> -c copy -bsf:v hevc_metadata=tick_rate=(24000/1001):num_ticks_poc_diff_one=1 <path to output file>

helps. This should basically do the above but also rewrite the frame rate info inside the video stream itself.

Forget the FillDuplicateFrames approach, I checked one of the clips and there were no duplicate frames I could notice and the difference between the frames.
(Even when the time codes were wrong, weren't really noticeable to set some fixed threshold.)
=> the ffmpeg call is probably the most sensible way to deal with these files.

Cu Selur

Ps.: on a PC I would also considering to use frame interpolation to get the source to a higher frame rate, since due to the nature of the clips there are probably no noticable interpolation artifacts.