Is it possible to encode a video with the resolution of 16k x 2k

I stitched 6 4k-videos and wanted to output a video with resolution of 16kx2k(about 140000 x 2160). But I fount that the nvcodec encoder only support resolution up to 8192x8192. So, how can I implement it?

With tiles maybe. But Nvidia will have to write software code to add up slices.