Filter scale_qsv
  QuickSync video scaling and format conversion
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
qsvscale AVOptions:
  w                 <string>     ..FV..... Output video width (default "iw")
  h                 <string>     ..FV..... Output video height (default "ih")
  format            <string>     ..FV..... Output pixel format (default "same")


