Asd-g / AviSynthPlus-MapNLQ

Dolby Vision mapping for AviSynth.

Description

Polynomial luma mapping, MMR chroma mapping on base layer. NLQ 12 bits restoration from enhancement layer.

This is a port of the VapourSynth plugin vs-nlq.

Requirements:

• AviSynth+ r3688 (can be downloaded from here or here) or later

• Microsoft VisualC++ Redistributable Package 2022 (can be downloaded from here)

Usage:

MapNLQ(clip BL, clip EL, string "rpu")

Parameters:

• BL
  Base layer.
  It must be Profile 7 (BL+EL+RPU).
  It must be in YUV(A) 16-bit planar format.
  It must have frame property DolbyVisionRPU.

• EL
  Enhancement layer
  It must be Profile 7 (EL+RPU).
  It must be in YUV 10-bit planar format.
  It must have the same subsampling as BL.
  It must have 0.25 dimension of the BL dimension.
  It must have the same number of frames as BL.
  If rpu isn't specified, this must have frame property DolbyVisionRPU.

• rpu
  Path to the RPU binary.
  Default: Not specified.

The output is 12-bit.

Script example

BL_clip
z_ConvertFormat(bit_depth=16)
Prefetch(2)
libplacebo_Tonemap(src_csp=3, dst_csp=1)
Prefetch(1)
z_ConvertFormat(pixel_type="yuv420p16", chromaloc_op="top_left=>top_left", resample_filter="spline36")
bl=Prefetch(2)

el=EL_clip

MapNLQ(bl, el)
#MapNLQ(bl, el, rpu)
Prefetch(2)

Building:

Requirements:
- Git
- C++17 compiler
- CMake >= 3.16

git clone --recurse-submodules https://github.com/Asd-g/AviSynthPlus-MapNLQ

cd AviSynthPlus-MapNLQ/dovi_tool/dolby_vision

cargo install cargo-c
cargo cbuild --release

cd ../../

cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Release

cmake --build build