Here's some images I produced to test out Rowbyte's Fast Bokeh Pro plugin for After Effects.  Like AE's native camera lens blur and frishulft's lenscare, it uses black & white depth mattes to add bokeh effects in post production.  The following images were rendered in Cinema 4d using Redshift render engine.  Some images with Xparticles.
Audio: c/o freesound.org
Street Organ:
freesound.org/s/204199/
freesound.org/s/204199/
Morning at the Fair:
freesound.org/s/165182/
freesound.org/s/165182/
 
      
      
      
      
      
      
      
      
     Using Cinema 4d, I created some rough geo and camera projected a still image to create a depth matte so I could add depth of field in post.
 
      
     
      
     
      
     
      
     
     You can use Depthy, a great website tool to use depth information from Android's Google Camera photos. 
 
      
      
     
      
    