Video-Quality

Reporte de pruebas de calidad de video para distintos escenarios

VMAF and FFMPEG installation

• Server : t3.large
• OS : Ubuntu 20.X
• ffmpeg static version : version N-55618-ga0acc44106-static https://johnvansickle.com/ffmpeg/

Prerequisites:

• sudo apt update

• sudo apt install pkg-config -y

• sudo apt-get install --no-install-recommends
  ninja-build
  python3
  python3-pip
  python3-setuptools
  python3-wheel
  ninja-build
  wget
  doxygen
  autoconf
  automake
  cmake
  g++
  gcc
  pkg-config
  make
  nasm
  yasm -y

• sudo -i

• curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

• python3 get-pip.py

• python3 -m pip install meson

• exit

FFMPEG Static Installation:

• wget https://johnvansickle.com/ffmpeg/builds/ffmpeg-git-amd64-static.tar.xz
• tar -xvf ffmpeg-git-amd64-static.tar.xz
• sudo mv ffmpeg-git-20210110-amd64-static/ffmpeg ffmpeg-git-20210110-amd64-static/ffprobe /usr/local/bin/
• sudo mkdir /usr/local/share/model
• sudo mv ffmpeg-git-20210110-amd64-static/model/* /usr/local/share/model/

VMAF Instalation (Optional) - To use the c library directly:

• wget https://github.com/Netflix/vmaf/archive/v1.5.3.tar.gz
• tar -xf v1.5.3.tar.gz
• cd vmaf-1.5.3/libvmaf/
• meson build --buildtype release
• ninja -vC build
• ninja -vC build test
• ninja -vC build install

Examples:

ffmpeg -i HBO_HD_RxSat27Oc2020_5min.ts -i HBO_HD_1080-5M-ref.ts -filter_complex "[0:v]select=gt(n\,0),setpts=PTS-STARTPTS[main]; [1:v]select=gt(n\,0),setpts=PTS-STARTPTS[ref]; [main][ref]libvmaf=psnr=1:log_path=prueba.json:log_fmt=json" -frames:v 100 -f null -

ffmpeg -i HBO_HD_RxSat27Oc2020_5min.ts -i HBO_HD_720-2.5M-ref.ts -filter_complex "[0:v]select=gt(n\,0),setpts=PTS-STARTPTS[main]; [1:v]select=gt(n\,1),setpts=PTS-STARTPTS,scale=1920x1080:flags=bicubic[ref]; [main][ref]libvmaf=psnr=1:log_path=prueba7200_1.json:log_fmt=json:n_threads=100" -frames:v 100 -f null -