unitproc/bkvideo2webm

   1 #/bin/bash
   2 # Desc: Convert video file to webm
   3 # Usage: bkvideo2webm.sh [ file ]
   4 # Example:
   5 #     $ for file in ./*; do bkvideo2webm "$file"; done;
   6 # Ref/Attrib: Geert Van Pamel, original author; date accessed: 2021-06-12; url: https://commons.wikimedia.org/wiki/Help:Converting_video
   7 # Version 0.1.2
   8 # Depends: ffmpeg version 4.1.6-1 (see https://tracker.debian.org/pkg/ffmpeg )
   9
  10 # Parameters:
  11 #  P1: input file name
  12
  13 if [[ -z "$1" ]]; then echo "Input file missing"; exit; fi;
  14
  15 input="$1";
  16 output=$(basename "$1").webm
  17
  18 ffmpeg -i "$input" -c:v libvpx-vp9 -b:v 0 -crf 30 -pass 1 -row-mt 1 -an -f webm -y /dev/null;
  19 ffmpeg -i "$input" -c:v libvpx-vp9 -b:v 0 -crf 30 -pass 2 -row-mt 1 -c:a libopus "$output";