NVEnc

by rigaya

This software is meant to investigate performance and image quality of HW encoder (NVENC) of NVIDIA. There are 2 types of software developed, one is command line version that runs independently, and the nother is a output plug-in of Aviutl.

NVEncC.exe ... Command line version supporting transcoding.
NVEnc.auo ... Output plugin for Aviutl.

Downloads & update history

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System Requirements

Windows 10 (x86 / x64)
Aviutl 1.00 or later (NVEnc.auo)
Hardware which supports NVENC
NVIDIA GPU GeForce Kepler gen or later (GT / GTX 6xx or later)
※ Since GT 63x, 62x etc. are renames of the Fermi generation, they cannot run NVEnc.

NVEnc	required graphics driver version
NVEnc 0.00 or later	NVIDIA graphics driver 334.89 or later
NVEnc 1.00 or later	NVIDIA graphics driver 347.09 or later
NVEnc 2.00 or later	NVIDIA graphics driver 358 or later
NVEnc 2.08 or later	NVIDIA graphics driver 368.69 or later
NVEnc 3.02 or later	NVIDIA graphics driver 369.30 or later
NVEnc 3.08 or later	NVIDIA graphics driver 378.66 or later
NVEnc 4.00 or later	NVIDIA graphics driver 390.77 or later
NVEnc 4.31 or later	NVIDIA graphics driver 418.81 or later
NVEnc 4.51 or later	NVIDIA graphics driver 436.15 or later

Usage and options of NVEncC

Option list and details of NVEncC

Examples of supported encode features

Result of --check-features, a feature list returned from the driver. May depend on the driver version.

GPU Gen	GPU Name
Kepler	GTX660Ti
Maxwell	GTX970
Pascal	GTX1080, GTX1070, GTX1060
Volta	GTX1650
Turing	RTX2070, RTX2060, GTX1660Ti, GTX1650 Super

Precautions for using NVEnc

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND.

The output from NVEnc may not include the max_dec_frame_buffering field, which might cause problem in some playback environments.

Main usable functions

Common to NVEnc / NVEncC

Encoding using NVENC
- H.264 / AVC
  - YUV420 / YUV444
- H.265 / HEVC (2nd Gen Maxwell or later)
  - YUV420 / YUV444
  - 10 bits
Each encode mode of NVENC
- CQP (fixed quantization)
- CBR (Constant bitrate)
- CBRHQ (Constant bitrate, high quality)
- VBR (Variable bitrate)
- VBRHQ (Variable bitrate, high quality)
Interlaced encoding (by PAFF)
Lossless output (YUV 420 / YUV 444)
supports setting of codec profile & level, SAR, colormatrix, maxbitrate, GOP len, etc...

NVEncC

Supports cuvid decoding
- MPEG1
- MPEG2
- H.264 / AVC
- HEVC (10 bit / 12bitdepth with YUV444 support)
- VC-1
- VP9
Supports various formats such as avs, vpy, y4m, and raw
Supports demux/muxing using libavformat
Supports decode using libavcodec
Calculation of ssim/psnr of the encode
High performance filtering (VPP, Video Pre-Processing)
- cuvid built-in hw processing
  - resize
  - deinterlace (normal / bob)
- GPU filtering by CUDA
  - rff (apply rff flag)
  - deinterlacer
    - afs (Automatic field shift)
    - nnedi
    - yadif
  - colorspace conversion (x64 version only)
    - hdr2sdr
  - delogo
  - subburn
  - resize
    - bilinear
    - spline16, spline36, spline64
    - lanczos2, lanczos3, lanczos4
    - various algorithms by npp library are available (x64 version only)
  - padding
  - select-every
  - deband
  - noise reduction
    - knn (K-nearest neighbor)
    - pmd (modified pmd method)
    - gauss (npp library, x64 version only)
  - edge / detail enhancement
    - unsharp
    - edgelevel (edge level adjustment)

NVEnc.auo (Aviutl plugin)

Audio encoding
Mux audio and chapter
afs (Automatic field shift) support

cufilters.auf (Aviutl plugin)

supported filters
- nnedi
- resize
- noise reduction
  - knn (K-nearest neighbor)
  - pmd (modified pmd method)
- edge / detail enhancement
  - unsharp
  - edgelevel (edge level adjustment)
- deband

NVEnc source code

MIT license.
This program is based on NVIDA CUDA Samples and includes sample code. This software contains source code provided by NVIDIA Corporation.
This software depends on jitify, ffmpeg, tinyxml2, dtl, libass, ttmath & Caption2Ass. For these licenses, please see the header part of the corresponding source and NVEnc_license.txt.
How to build

About source code

Windows ... VC build

Character code: UTF-8-BOM
Line feed: CRLF
Indent: blank x4

kannan-xiao4 / NVEnc