reformat2mp4.sh

#!/bin/bash

set -o errexit
set -o nounset
set -o pipefail

_main() {
    path=$1
    for file in $(find $path -name '*.flv' -cmin +1); do
        if [[ $(wc -c "${file}" | awk '{print $1}') -lt $(expr 10 '*' 1024 '*' 1024) ]]; then
            echo "INFO: video file less than 10mb, del it (${file})" && rm -rf "${file}"
            continue
        fi
        ffmpeg -hide_banner -i "${file}" -c copy "${file/%.flv/.mp4}" && rm -rf "${file}"
    done
}

main() {
    oldifs=$IFS
    IFS=$'\n'

    _main ${1:-$(pwd)}

    IFS=$oldifs
}

main $@