„to_opus.sh“ löschen

This commit is contained in:
esche 2023-07-04 23:15:06 +02:00
parent 8f662f9501
commit 7d9364818b

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@ -1,63 +0,0 @@
#!/bin/bash
# set shopt-options used by this shell-script
# Note, 0 (true) from shopt -q is "false" in a math context.
shopt -q globstar; globstar_set=$?
((globstar_set)) && shopt -s globstar
shopt -q extglob; extglob_set=$?
((extglob_set)) && shopt -s extglob
# return default shopt-options
function finish {
((globstar_set)) && shopt -u globstar
((extglob_set)) && shopt -u extglob
}
trap finish EXIT
# setting default extension to mp3
if [ $# -eq 0 ]; then
extension="mp3"
else
extension=$@
extension=${extension// /|}
fi
for file in **/*.@($extension); do
#set a channel-dependent bitrate for every audio stream
command=$(
ffprobe "$file" -v 0 -show_entries stream=channels,bit_rate -select_streams a -of compact=p=0:nk=1:s="\ " |
awk -v file="$file" -v file_output="${file%.*}.opus" '
BEGIN{
ORS=" ";
print "ffmpeg -i \""file"\" -map 0:a -c:a libopus"
}
{ # https://wiki.xiph.org/Opus_Recommended_Settings
if($1==1) print $2>=64000 ? "-b:a:"NR-1" 64k" : "-b:a:"NR-1" "$2
else if($1==2) print $2>=128000 ? "-b:a:"NR-1" 128k" : "-b:a:"NR-1" "$2
else if($1<=6) print $2>=256000 ? "-b:a:"NR-1" 256k" : "-b:a:"NR-1" "$2
else print $2>=450000 ? "-b:a:"NR-1" 450k" : "-b:a:"NR-1" "$2
}
END{
print "\""file_output"\" -v info -hide_banner"
}')
is_video=$(ffprobe -i Hair.m4v -v fatal -select_streams V -show_entries stream=codec_type)
if [[ -n "$is_video" ]]; then
echo "$file is a video file and will not be converted"
#an Example for converting the audiostreams in a container while copying subtitles and videostreams.
#ffmpeg -i Hair.m4v -map 0:a -map 0:s -map 0:v -c:a libopus -c:v copy -c:s copy Hair.mkv -hide_banner -v info
#for extracting the audiostreams of a video file just use "eval "$command"".
#it is recommended to check the result before deleting the original file.
else
eval "$command" && rm "$file"
fi
done
exit 0