Simple script to convert some videos for use as a wallpaper in KDE 5.26+

mkwall.sh

#!/bin/bash

# Simple script to convert some Anime Live Wallpapers for use in KDE 5.26+

# Files
INPUT_FILENAME="$1" # path to the input video.
OUTPUT_FILENAME="${INPUT_FILENAME%.*}.avif"

# Configuration
OUTPUT_WIDTH=1280; OUTPUT_HEIGHT=720 # Output Resolution

# 60 FPS maybe?
# -vf "minterpolate=fps=60:mi_mode=mci:mc_mode=aobmc:me_mode=bidir:vsbmc=1"

# Set Bitrate
# -b:v 4500k

ffmpeg -hwaccel nvdec \
  -i "$INPUT_FILENAME" \
  -an \
  -s ${OUTPUT_WIDTH}x${OUTPUT_HEIGHT} -sws_flags lanczos \
  -c:v librav1e -qp 80 -speed 4 -tile-columns 2 -tile-rows 2 -threads $(nproc --all) \
  -loop 0 -fps_mode cfr \
  "$OUTPUT_FILENAME"