ref: c1a707427fbbb5129e467516fc671e976ee3e398
dir: /alac2mp3/
#!/bin/rc
# Convert ALAC to MP3 using mplayer and lame, then delete the ALAC files.
# This program is intended to run on a UNIX-like operating system.
# Usage: Running alac2flac converts files in the current directory.
# The -r flag recurses into subdirectories.
# Dependencies:
# http://www.mplayerhq.hu/design7/dload.html
# https://lame.sourceforge.io/
# https://9fans.github.io/plan9port/
# http://plan9.stanleylieber.com/rc/crip
rfork e
path=$PLAN9/bin:$PATH
formats='m4a|M4A'
fn walk{ du $1 | awk '{print $2}' | sed 's/^\./'^$"1^'/'}
if(~ $1 -r){
for(i in `{walk `{pwd} | sort -f}){ echo $"i && cd $"i && alac2mp3}
exit
}
if(ls | grep -s -e $"formats){
crip -n # normalize file names for plan 9
for(i in `{ls | grep -e $"formats}){
mplayer -quiet -vo null -vc dummy \
-af volume'='0,resample'='44100:0:1 \
-ao pcm:waveheader:file'='$"f.wav $"i &&
lame --quiet -m -s -h -b 320 -V0 --vbr-new $"f.wav $"f.mp3 &&
rm -f $"f.wav
}
}