ffmpeg-convert

#!/bin/bash

# find all *.MOD files recursively inside current work dir
# and convert them into *.mp4 (if its not there already)

while read V; do
    VO="${V/.MOD/.mp4}"
    VL="${V/.MOD/.log}"
    ls -1sh "$V"
    # possible add into -vf also "-vf scale=-2:720,format..." when rescale is wanted
    # as per https://askubuntu.com/a/353282
    if [[ -f "$VO" ]]; then
        echo "=== Already converted"
    else
        if ! /usr/bin/time -f '%es' ffmpeg -i "$V" -c:v libx264 -crf 23 -preset medium -c:a aac -b:a 128k -movflags +faststart -vf format=yuv420p "${VO}" < /dev/null &> "${VL}"; then
            rm -f "${VO}"
            echo "$V - $VO - $VL   failed"
            exit 1
        fi
    fi

    { set +x; } 2>/dev/null
    echo "=== Converted $(ls -1 */*.mp4 | wc -l) / $(ls -1 */*.MOD | wc -l) ...";
    set -x
done < <(find -iname \*.MOD | sort )