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@shssoichiro
shssoichiro / settings.md
Last active December 29, 2025 18:04
aomenc settings (Updated 2022-09-18)

Current aomenc recommended settings for sharpness and detail retention:

--cpu-used=4 --cq-level=16 --end-usage=q --lag-in-frames=48 --enable-fwd-kf=1 --aq-mode=1 --deltaq-mode=0 --enable-chroma-deltaq=1 --quant-b-adapt=1 --enable-qm=1 --min-q=1 --enable-keyframe-filtering=0 --arnr-strength=1 --arnr-maxframes=4 --sharpness=3 --enable-dnl-denoising=0 --disable-trellis-quant=0 --threads=64

General CQ guidelines:

  • 40: Youtube quality
  • 30: Watchable, fine for streaming or lower bitrate encodes
  • 20: Good quality
@jbboehr
jbboehr / ffmpeg-hevc-encode-nvenc.md
Created February 23, 2017 21:58
This gist shows you how to encode specifically to HEVC with ffmpeg's NVENC on supported hardware, with a two-pass profile and optional CUVID-based hardware-accelerated decoding.

Encoding high-quality HEVC content in a two-pass manner with FFmpeg - based NVENC encoder on supported hardware:

If you've built ffmpeg as instructed here on Linux and the ffmpeg binary is in your path, you can do fast HEVC encodes as shown below, using NVIDIA's NPP's libraries to vastly speed up the process.

Now, to do a simple NVENC encode in 1080p, (that will even work for Maxwell Gen 2 (GM200x) series), start with:

ffmpeg  -i <inputfile> -pass 1 \
-filter:v hwupload_cuda,scale_npp=w=1920:h=1080:format=nv12:interp_algo=lanczos,hwdownload,format=nv12 \

-c:v hevc_nvenc -profile main -preset slow -rc vbr_2pass \

@Brainiarc7
Brainiarc7 / ffmppeg-advanced-playbook-nvenc-and-libav-and-vaapi.md
Last active September 2, 2024 14:37
FFMpeg's playbook: Advanced encoding options with hardware-accelerated acceleration for both NVIDIA NVENC's and Intel's VAAPI-based hardware encoders in both ffmpeg and libav.

FFmpeg and libav's playbook: Advanced encoding options with hardware-based acceleration, NVIDIA's NVENC and Intel's VAAPI-based encoder.

Hello guys,

Continuing from this guide to building ffmpeg and libav with NVENC and VAAPI enabled, this snippet will cover advanced options that you can use with ffmpeg and libav on both NVENC and VAAPI hardware-based encoders.

For ffmpeg:

@Brainiarc7
Brainiarc7 / VAAPI-hwaccel-encode-Linux-Ffmpeg&Libav-setup.md
Last active February 26, 2026 18:01
This gist contains instructions on setting up FFmpeg and Libav to use VAAPI-based hardware accelerated encoding (on supported platforms) for H.264 (and H.265 on supported hardware) video formats.

Using VAAPI's hardware accelerated video encoding on Linux with Intel's hardware on FFmpeg and libav

Hello, brethren :-)

As it turns out, the current version of FFmpeg (version 3.1 released earlier today) and libav (master branch) supports full H.264 and HEVC encode in VAAPI on supported hardware that works reliably well to be termed "production-ready".