H.265 12-bit support?

[lovcrimson]

I'm using Avidemux 2.6.14, it works perfectly with H.265 main/10-bit encoded videos. However my only gripe is that it can't load H.265 12-bit video. I tried lots of other tools as well, most of them can encode videos to H.265 12-bit, but cannot load 12-bit to be encoded.

I wonder if there is a workaround for this or if there will be official Avidemux support for H.265 12-bit?