HDR encoding

[mparade]

a. Vapoursynth isn't limited to Windows only, like Avisynth+.
b. Vapoursynth has more potential in regards to expandability.
c. Vapoursynth uses multi-threading better.

Cu Selur

Hello,

Got from Donald Graft the infos as follows:

This Avisynth+ script works fine when opening in VirtualDub 64:

loadplugin("d:\don\Programming\C++\dgdecnv\DGDecodeNV\x64\Release\dgdecodenv.dll")
dgsource("H:\Streams\HEVC\10 Bit\ES\Philips_Ultra-HD_Beach_Life_supershop-demo-3.dgi",fulldepth=true)
convertbits(8)

If you have an application that accepts 16 bit you can omit the convertbits call. Or you can change it to convertbits(10) if your application accepts 10 bit.

It looks to me like Vapoursynth simply does not support HDR from Avisynth source filters. Or maybe it doesn't support 16 bit and you need to convert it to 10. Ask the author about that.

I think x265 can accept 16bit content. According to the profile chosen it will convert the input to the required bit depth (e.g. when using main10 profile x265 will convert the 16 bit input to a 10 bit output).