61 lines
1.7 KiB
Bash
61 lines
1.7 KiB
Bash
#!/bin/sh
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# Demo script for processing all audio tracks with a mp3 encoder
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# This variant creates temporary wav files. There is another
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# variant of this script (cdda2mp3), which uses a named pipe
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# instead. This variant needs more disk space than the other one.
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#
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# usage: cdda2mp3.new <name prefix for all mp3 files>
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#
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# list_audio_tracks is a (symbolic) link to cdda2wav
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# and used to generate a list of audio track numbers and start
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# sectors, which in turn are used in a loop to spawn cdda2wav
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# and the post processor on a track by track basis.
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#
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# feedback needed!!!!!!!!!!!!!!!!!
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#
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# specify the audio track listing program and its options
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LAT=list_audio_tracks
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LAT_OPTIONS=
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# specify the sampling program and its options
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# do not specify the track option here!
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CDDA2WAV=cdda2wav
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CDDA2WAV_OPTS='-Owav -H -P0 -q'
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# for normal use, comment out the next line with a #
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#DEBUG='-d1'
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# specify the post processing program and its options
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MP_CODER=l3enc
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#MP_OPTIONS='2>/dev/null 1>/dev/null'
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MP_OPTIONS='-br 128000'
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#MP_OPTIONS='-hq'
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WAVFILE=$$".wav"
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FILEPREFIX=${1:-audiotrack}
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# clean up wav file on exit, abort, ...
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trap "rm -rf $WAVFILE" 0 2 3 4 6 7 8 10 11 12 13 15
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# feed track numbers and start sectors into loop
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$LAT $LAT_OPTIONS | while read TRACK STARTSECTOR;
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do
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$CDDA2WAV $CDDA2WAV_OPTS -t$TRACK $DEBUG $WAVFILE
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# echo n | $MP_CODER $WAVFILE $FILEPREFIX$TRACK.mp3 $MP_OPTIONS
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$MP_CODER $WAVFILE $FILEPREFIX$TRACK.mp3 $MP_OPTIONS
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# check result code
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RES=$?
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if [ $RES = 0 ] ; then
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echo File $FILEPREFIX$TRACK.mp3 finished successfully.
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rm $WAVFILE
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else
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echo File $FILEPREFIX$TRACK.mp3 failed \(result $RES\). Aborted. >&2
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break
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fi
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done
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