62 lines
1.6 KiB
Plaintext
62 lines
1.6 KiB
Plaintext
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#!/bin/bash
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#
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# EDWARDS RESEARCH
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# www.edwards-research.com
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#
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# This converts the audio from .mp4 files that include video (e.g. youtube.com streams) to
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# .mp3 files.
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#
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# If file exists, set $FILE
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# I know this is a sloppy way to handle command line arguments -- I'm ok with that. (I
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# was going to provide for options, blah blah...)
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if [[ -e ${1} ]] ; then
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FILE=${1}
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fi
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# Ensure input file exits
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if [[ -z $FILE ]] ; then
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echo "File not found -- exiting."
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exit
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fi
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# Extract Filename
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base=$(basename "${FILE}" .mp4)
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# Dump audio from .mp4 to .wav with mplayer
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# So, it looks as if it doesn't make a difference in terms of the output (at least from
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# my small test group) whether you pick pcm:waveheader or pcm:fast. pcm:waveheader takes
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# more than twice as long to convert but pcm:fast complains. I'm going to leave it at
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# waveheader because I'm not in a rush and I'd rather not have the warnings. Feel free
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# to change this to pcm:fast and experiment.
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# -ao pcm:waveheader -> 59 seconds, 4625553 byte .mp3
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# -ao pcm:fast -> 22 seconds, 4625553 byte .mp3
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#
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mplayer -vc null -vo null -nocorrect-pts -ao pcm:fast "${FILE}"
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#
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# mplayer -vc null -vo null -nocorrect-pts -ao pcm:waveheader "${FILE}"
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RV=$?
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if [[ $RV != 0 ]] ; then
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echo "mplayer completed unsuccessfully -- exiting."
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exit
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fi
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# Convert .wav to .ogg
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oggenc -q 5 -o "${base}.ogg" audiodump.wav
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#lame -h -b 192 audiodump.wav "${base}.mp3" ${VERB}
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RV=$?
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if [[ $RV != 0 ]] ; then
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echo "oggenc completed unsuccessfully -- exiting."
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exit
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fi
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# Cleanup Temporary File
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rm audiodump.wav
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echo "Conversion complete."
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