opus.book 2022.02.26

#!/bin/bash
#set -x
#trap read debug
# init

shopt -s extglob
scriptname="$(realpath $0)"

function editscript(){
echo "scriptname: $scriptname"
if [[ "$1" == "edit" ]]; then
 (/usr/bin/nano "$scriptname")
 exit
fi
}

function pause(){
   read -p "$*"
}

editscript "$1"

if [ -n "$1" ];
 then
#  ffmpeg -n -nostdin -hide_banner -loglevel error -stats -i "$1" -acodec libopus -b:a 17k "${1%.*}".opus
   ffmpeg -n -nostdin -hide_banner -loglevel error -stats -i "$1"  -filter_complex "compand=attacks=0:decays=0.12:points=-70/-900|-40/-90|-35/-37|-21/-18|1/-1|20/-1:soft-knee=0.03:gain=1.00:volume=-90, firequalizer=gain_entry='entry(0,-99);entry(140,0);entry(1000,0);entry(8000,1);entry(10500,4);entry(12000,5);entry(14500,-4);entry(19000,-20)', volume=1.0" -c:a libopus -b:a 17k -frame_duration:a 60 "${1%.*}".opus
 else
  for file in *.@(flac|mp3|wav|m4?|ogg) ; do
#   ffmpeg -n -nostdin -hide_banner -loglevel error -stats -i "$file" -acodec libopus -b:a 17k "${file%.*}".opus
#   ffmpeg -n -nostdin -hide_banner -loglevel error -stats -i "$file"  -filter_complex "compand=attacks=0:decays=0.12:points=-70/-900|-40/-90|-35/-37|-21/-18|1/-1|20/-1:soft-knee=0.03:gain=1.00:volume=-90, firequalizer=gain_entry='entry(0,-99);entry(140,0);entry(1000,0);entry(8000,1);entry(10500,4);entry(12000,5);entry(14500,-4);entry(19000,-20)', volume=1.0" -c:a libopus -b:a 16384 -frame_duration:a 60 -application voip "${file%.*}".opus
#   ffmpeg -n -nostdin -hide_banner -loglevel error -stats -i "$file"  -filter_complex "compand=attacks=0:decays=0.12:points=-70/-900|-40/-90|-35/-37|-21/-18|1/-1|20/-1:soft-knee=0.03:gain=1.00:volume=-90, firequalizer=gain_entry='entry(0,-99);entry(140,0);entry(1000,0);entry(8000,1);entry(10500,4);entry(12000,5);entry(14500,-4);entry(19000,-20)', volume=1.0" -c:a libopus -b:a 17k -frame_duration:a 60 -application voip "${file%.*}".opus
   ffmpeg -n -nostdin -hide_banner -loglevel error -stats -i file:"$file"  -filter_complex "compand=attacks=0:decays=0.12:points=-70/-900|-40/-90|-35/-37|-21/-18|1/-1|20/-1:soft-knee=0.03:gain=1.00:volume=-90, firequalizer=gain_entry='entry(0,-99);entry(140,0);entry(1000,0);entry(8000,1);entry(10500,4);entry(12000,5);entry(14500,-4);entry(19000,-20)', volume=1.0" -c:a libopus -b:a 17k file:"${file%.*}".opus
#   ffmpeg -n -nostdin -hide_banner -loglevel error -stats -i file:"$file" -c:a libopus -b:a 17k file:"${file%.*}".opus

#	ffmpeg -n -i "$file" -acodec libopus -b:a 17k "${file%.*}".opus
#	ffmpeg -n -i "$file" -acodec libopus -ar 16000 -b:a 24k "${file%.*}".opus
 done
fi


if [ -n "$1" ];
 then
  echo mediaduration "${1#*.}" `mediaduration "${1#*.}"`
  echo mediaduration opus `mediaduration opus`
 else
  echo mediaduration "${file#*.}" `mediaduration "${file#*.}"`
  echo -e "mediaduration opus `mediaduration opus`\n"
fi