Weston 3 Field Deinterlacing Filter. Ported from FFmpeg's libavfilter https://ffmpeg.org/ffmpeg-filters.html#w3fdif
w3fdif.W3FDIF(clip clip, int order[, int mode=1])
clip: Clip to process. Any planar format with either integer sample type of 8-16 bit depth or float sample type of 32 bit depth is supported.
order: Sets the field order. The filter will use the field order specified in the source frames and will only fall back to the specified order if not present.
- 0 = bff
- 1 = tff
mode: Sets the interlacing filter coefficients.
- 0 = simple filter coefficient set
- 1 = more-complex filter coefficient set