Filter v360
  Convert 360 projection of video.
    slice threading supported
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
v360 AVOptions:
  input             <int>        ..FV..... set input projection (from 0 to 6) (default e)
     e                            ..FV..... equirectangular
     c3x2                         ..FV..... cubemap3x2
     c6x1                         ..FV..... cubemap6x1
     eac                          ..FV..... equi-angular
     dfisheye                     ..FV..... dual fisheye
     fb                           ..FV..... facebook's 360 format
  output            <int>        ..FV..... set output projection (from 0 to 6) (default c3x2)
     e                            ..FV..... equirectangular
     c3x2                         ..FV..... cubemap3x2
     c6x1                         ..FV..... cubemap6x1
     eac                          ..FV..... equi-angular
     flat                         ..FV..... regular video
     fb                           ..FV..... facebook's 360 format
  interp            <int>        ..FV..... set interpolation method (from 0 to 3) (default line)
     near                         ..FV..... nearest neighbour
     nearest                      ..FV..... nearest neighbour
     line                         ..FV..... bilinear interpolation
     linear                       ..FV..... bilinear interpolation
     cube                         ..FV..... bicubic interpolation
     cubic                        ..FV..... bicubic interpolation
     lanc                         ..FV..... lanczos interpolation
     lanczos                      ..FV..... lanczos interpolation
  w                 <int>        ..FV..... output width (from 0 to INT_MAX) (default 0)
  h                 <int>        ..FV..... output height (from 0 to INT_MAX) (default 0)
  in_forder         <string>     ..FV..... input cubemap face order (default "rludfb")
  out_forder        <string>     ..FV..... output cubemap face order (default "rludfb")
  in_frot           <string>     ..FV..... input cubemap face rotation (default "000000")
  out_frot          <string>     ..FV..... output cubemap face rotation (default "000000")
  in_pad            <float>      ..FV..... input cubemap pads (from 0 to 1) (default 0)
  out_pad           <float>      ..FV..... output cubemap pads (from 0 to 1) (default 0)
  yaw               <float>      ..FV..... yaw rotation (from -180 to 180) (default 0)
  pitch             <float>      ..FV..... pitch rotation (from -180 to 180) (default 0)
  roll              <float>      ..FV..... roll rotation (from -180 to 180) (default 0)
  h_fov             <float>      ..FV..... horizontal field of view (from 0 to 180) (default 90)
  v_fov             <float>      ..FV..... vertical field of view (from 0 to 90) (default 45)
  h_flip            <boolean>    ..FV..... flip video horizontally (default false)
  v_flip            <boolean>    ..FV..... flip video vertically (default false)
  d_flip            <boolean>    ..FV..... flip video indepth (default false)


