[BUG] no readout of color transfer characteristics

[Selur]

Okay, I can reproduce it by:

• drag&drop 'rotsampleoriginal.mkv' into Hybrid
  
• checking 'Show All Data' and 'NVEnc->Color->Video Usability Information': both show 'smtp2084'
  
• drag&drop 'rotsampletarget.mov' into Hybrid
  
• checking 'Show All Data' shows 'smtp2084', but 'NVEnc->Color->Video Usability Information' does show 'undef'
  

=> I'll look at it and try to fix it.

Cu Selur

[Selur]

Uploaded a new dev, let me know whether that fixes the problem. (and hopefully doesn't cause new ones)

Cu Selur