135 lines
4.3 KiB
Bash
Executable File
135 lines
4.3 KiB
Bash
Executable File
#!/bin/bash
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#
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# encode.bash - Drives a set of encoders and tagging utilities to convert a
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# single WAV input file into flac, Ogg Vorbis, AAC and MP3 files with complete
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# and consistent metadata.
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#
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# Copyright (c) 2010, Thomas Gideon
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of Thomas Gideon nor the
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# names of additional contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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if [ -z "$1" ]
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then
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echo "Provide a cast type!"
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echo "$0 <cast type> <slug> [date]"
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exit 1
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fi
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type=$1
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if [ -z "$2" ]
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then
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echo "Provide a slug!"
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echo "$0 <cast type> <slug> [date]"
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exit 2
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fi
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slug=$2
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if [ -z "$3" ]
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then
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date=$(date +%Y-%m-%d)
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year=$(date +%Y)
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post_date=$(date +%Y/%m/%d)
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else
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date=$(date +%Y-%m-%d -d $3)
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year=$(date +%Y -d $3)
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post_date=$(date +%Y/%m/%d -d $3)
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fi
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echo $date
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# assemble common values for tags/comments
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title="The Command Line ${date}"
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artist="Thomas Gideon"
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cover="${HOME}/Dropbox/Public/color_cover_art.jpg"
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album="The Command Line"
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genre="Podcast"
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url="http://thecommandline.net/${post_date}/${slug}/"
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copyright="http://creativecommons.org/licenses/by-sa/3.0/us"
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comment="Weekly ${type} cast. Email to feedback@thecommandline.net. Show notes and license information for this episode at ${url}."
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# encode lossy, MP3, adding ID3v2 tags for everything
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# *except* cover art
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lame -b 112 \
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--cbr \
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--tt "${title}" \
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--ta "${artist}" \
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--tl "${album}" \
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--ty "${year}" \
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--tc "${comment}" \
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--tg "${genre}" \
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--id3v2-only \
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--noreplaygain \
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cmdln.net_${date}.wav \
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cmdln.net_${date}.mp3
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# lame package from Lucid lacks the --ti switch for image
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# found eyed3 via a web search
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eyeD3 --add-image ${cover}:FRONT_COVER \
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--set-text-frame="TCOP:${copyright}" \
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cmdln.net_${date}.mp3
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# lossless encoding
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flac \
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--picture="|image/jpeg|||${cover}" \
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--tag=title="${title}" \
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--tag=artist="${artist}" \
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--tag=album="${album}" \
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--tag=year="${year}" \
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--tag=genre="${genre}" \
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--tag=composer="${artist}" \
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--tag=comment="${comment}" \
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--tag=url="${url}" \
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--tag=copyright="${copyright}" \
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cmdln.net_${date}.wav
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# AAC encoding, lossy
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faac -q 100 \
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-b 128 \
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-c 44100 \
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-o cmdln.net_${date}.m4a \
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--title "${title}" \
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--artist "${artist}" \
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--album "${album}" \
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--year "${year}" \
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--genre "${genre}" \
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--writer "${artist}" \
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--comment "${comment}" \
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--cover-art "${cover}" \
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cmdln.net_${date}.wav
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# put together the just-so input file for mp4chaps
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echo "00:00:00.000 Start" > \
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cmdln.net_${date}.chapters.txt
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grep "{{offset|" ~/Documents/cmdln_notes/weekly_archive/${date}.notes | \
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sed -e "s/.*offset|\(.*\)}}.*|\(.*\)}}.*/\1 \2/" >> \
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cmdln.net_${date}.chapters.txt
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# write the chapter marks to the AAC/MP4 file
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mp4chaps -o -z -i cmdln.net_${date}.m4a
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# encode the Ogg Vorbis from the flac copies the tags/comments
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# already set into the flac file except the cover art;
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# using metaflac, can encode the binary block in flac
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# per the latest recommendations from Xiph for cover art
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oggenc \
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-q 5 \
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--comment=METADATA_BLOCK_PICTURE="$(metaflac --export-picture-to=- cmdln.net_${date}.flac| base64 -w 0)" \
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cmdln.net_${date}.flac
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