30 lines
758 B
Bash
Executable File
30 lines
758 B
Bash
Executable File
#!/usr/bin/env bash
|
|
set -euo pipefail
|
|
|
|
# evaluate options through given arguments
|
|
map=
|
|
vbr=
|
|
while [[ $# > 0 ]]; do
|
|
case $1 in
|
|
-map) map='-map 0:0'; shift;;
|
|
-vbr) vbr='libfdk_aac -profile:a aac_he -b:a 64k'; shift;;
|
|
* ) break ;; # Anything else stops command line processing.
|
|
esac
|
|
done
|
|
|
|
# if no variable bitrate, just copy audio
|
|
if [[ -z $vbr ]]; then
|
|
map="$map copy"
|
|
fi
|
|
|
|
# ensure existence of destination folder
|
|
dest=../reencode
|
|
if [[ !(-d $dest) ]]; then
|
|
mkdir $dest
|
|
fi
|
|
|
|
for file in ./*.m4a; do
|
|
echo "ffmpeg -i '$file' -c:a $vbr $map -movflags +faststart '$dest/$file'";
|
|
ffmpeg -i "$file" -c:a $vbr $map -movflags +faststart "$dest/$file";
|
|
done
|