>I tried to use the lossless .tiff image sequence but I couldn’t get AviSynth or VapourSynth to display anything other than a black screen.
I just used the VapourSynth built-in imwri, and manually set the frame rate:
```
a = '3840x2160\\sollevante_lp_vdm_16b_p3d65_pq_20200218_3840x2160.%07d.tiff'
src = core.imwri.Read(a,0)
src = core.std.AssumeFPS(src, fpsnum=24, fpsden=1)
```
The src clip will be in RGB48 format. Then you just need to convert it to YUV using the right parameters for matrx, range etc, downscale the chroma planes with correct shifts (right and down by 0.5 pixel for 2160p, right by 0.5 pixel for 1080p), and you're good to go for encoding.
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LoliHouse