Encode to H265, no quality loss

gistfile1.txt

#!/bin/bash
function encode {
    # Add a "?" at the end of a "map" to say "if available"
    # For a preview: add "-ss 0" before "-i" and "-t 120" before the output file. This gives a 2min sample
    ffmpeg -hide_banner \
    -i "$1" \
    -map_metadata 0 \
    -map_chapters 0 \
    -metadata title="$2" \
    -map 0 \
    -map 0:s? \
    -c copy \
    -c:v libx265 -preset ultrafast -x265-params \
    crf=22:qcomp=0.8:aq-mode=1:aq_strength=1.0:qg-size=16:psy-rd=0.7:psy-rdoq=5.0:rdoq-level=1:merange=44 \
    "out/$3.1080p.h265.DTS.mkv"
}

function encode720 {
    # Add a "?" at the end of a "map" to say "if available"
    # On "-vf scale", the -n says "fit aspect ratio". The n says "but correct to have choosen number be dvisible by this number"
    ffmpeg -hide_banner \
    -i "$1" \
    -vf scale=-2:720 \
    -map_metadata 0 \
    -map_chapters 0 \
    -metadata title="$2" \
    -map 0 \
    -map 0:s? \
    -c copy \
    -c:v libx265 -preset ultrafast -x265-params \
    crf=22:qcomp=0.8:aq-mode=1:aq_strength=1.0:qg-size=16:psy-rd=0.7:psy-rdoq=5.0:rdoq-level=1:merange=44 \
    "out/$3.720p.h265.DTS.mkv"
}

date
echo "---------- START -------------"

encode "file.mkv" "Movie Title (20xx)" "file_name"

echo "---------- END ---------------"
date

#shutdown -h now