Filter rotate
  Rotate the input image.
    slice threading supported
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
rotate AVOptions:
  angle             <string>     ..FV..... set angle (in radians) (default "0")
  a                 <string>     ..FV..... set angle (in radians) (default "0")
  out_w             <string>     ..FV..... set output width expression (default "iw")
  ow                <string>     ..FV..... set output width expression (default "iw")
  out_h             <string>     ..FV..... set output height expression (default "ih")
  oh                <string>     ..FV..... set output height expression (default "ih")
  fillcolor         <string>     ..FV..... set background fill color (default "black")
  c                 <string>     ..FV..... set background fill color (default "black")
  bilinear          <boolean>    ..FV..... use bilinear interpolation (default true)

This filter has support for timeline through the 'enable' option.

