/useful/trunk-1

#!/usr/bin/env bash

###################

# FILE NAME: video2lbry.sh

#

# Encodes videos so they are ready to be uploaded to LBRY.

#

# Changes

# 2021-01-13

#   * fixed up if statments

#   * removed eval

#

####################

__IN_NAME=""

__OUT_NAME=""

__help () {

  echo "video2lbry.sh -- Make vide ready for upload to LBRY."

  echo " "

  echo "-i <input video file>     Input Video File."

  echo " "

  echo "-o <output video file>    Output Video File"

  echo "                          (_lbry.mp4 will be added to the end)."

  echo " "

}

__enc_mp4 () {

  ffmpeg -y -i "$__IN_NAME"\

          -threads 7\

          -c:v libx264\

          -crf 21\

          -preset slower\

          -pix_fmt yuv420p\

          -maxrate 5000K\

          -bufsize 5000K\

          -vf 'scale=if(gte(iw\,ih)\,min(2560\,iw)\,-2):if(lt(iw\,ih)\,min(2560\,ih)\,-2)'\

          -movflags +faststart\

          -c:a aac\

          -b:a 256k\

          "${__OUT_NAME}_lbry.mp4"

}

__parse_args() {

  if [[ -z "$1" ]]

  then

    echo "Try --help or -h."

    exit 1

  fi

  while [[ $# -gt 0 ]]

  do

    case "${1}" in

      -i)

      __IN_NAME="$2"

      shift

      shift

      ;;

      -o)

      __OUT_NAME="$2"

      shift

      shift

      ;;

      -m)

      __USE_WEBM=true

      shift

      ;;

      -h|--help)

      __help

      shift

      ;;

      *)

      __help

      exit

      shift

      ;;

      --)

      shift

      break

      ;;

    esac

  done

}

__main () {

  if [[ ! -e "$__IN_NAME" ]]

  then

    echo "missing input audio. Please provide."

    exit 1

  fi

  if [[ $__OUT_NAME == "" ]]

  then

    echo "missing output file name. Please provide."

    exit 1

  fi

  if [[ $__IN_NAME == ${__OUT_NAME}_lbry.mp4 ]]

  then

    echo "Filenames can't be the same."

    exit

  fi

  __enc_mp4

}

__parse_args "${@}"

__main