We have a PKS enabled web-application in our environment, everything looks fine however the Duration (Single line in text) field is in PKS Podcasts List is not getting updated while uploading a file/Item (Video/Audio). 

Due to this, The Home page is showing "00:00:00" against the duration field. I could not find any clue on this, please let me know if you have any idea. 

Which is the component responsible to update the field in the PKS Podcasts List?