Automatically remove "black frames"

[Selur]

Okay, here's what you can do.

• Start Hybrid
  
• load clip
  
• set 'Filtering->(De-)Interlace/Telecine->Overwrite input scan type to' to 'top field first'
  
• optional: enable 'Filtering->(De-)Interlace/Telecine->QTGMC Vapoursynth->Bob'.
  
• go to 'Filtering->Vapoursynth->Custom->Insert Before' set it to 'FillDrops', enable the text box below it.
  
• in this custom section you now enter:
  
  # replace a black frames with last frame that was not black
def ReplaceBlackFrames(clip, thresh=0.1, debug=False):
  core = vs.core
  if not isinstance(clip, vs.VideoNode):
      raise ValueError('This is not a clip')
      
  def selectFunc(n, f):
    if f.props['PlaneStatsAverage'] > thresh or n == 0:
      if debug:
        return core.text.Text(clip=clip,text="Org, avg: "+str(f.props['PlaneStatsAverage']),alignment=8)
      return clip
    toReplace = n
    for i in range(n)[::-1]:
      if clip.get_frame(i).props['PlaneStatsAverage'] <= thresh:
        continue
      
      # remove current replace with frame before    
      start = core.std.Trim(clip, first=0, last=n-1)
      r = core.std.Trim(clip, first=i, last=i)
      end = core.std.Trim(clip, first=n+1)
      replaced = start + r + end
      break
    
    if debug:
       return core.text.Text(clip=replaced,text="Replaced, avg: "+str(f.props['PlaneStatsAverage']),alignment=8)
    return replaced
          
  clip = core.std.PlaneStats(clip)
  fixed = core.std.FrameEval(clip, selectFunc, prop_src=clip)
  return fixed

clip = ReplaceBlackFrames(clip, thresh=0.1, debug=False)
  If you now look at the Vapoursynth Preview all black frames should be replaced with the last non-black frame.
  
• optional: if there were no multiple black frames in a row, enable 'Filtering->Vapoursynth->Misc->FillDrops', this will then replace the duplicate with an interpolated version.
  

Cu Selur