encode.bash

@@ -32,13 +32,13 @@ function clean {
 	if [ -f "$1" ]
 	then
 		echo "Cleaning existing file, $1."
-		rm "$1"
+		rm $1
 	fi
 }
 
 if [ -z "$1" ]
 then
-	echo "Provide a cast config!"
+	echo "Provide a cast type!"
 	echo "$0 <cast config> <slug> [date]"
 	exit 1
 fi
@@ -49,22 +49,22 @@ then
 	echo "$0 <cast config> <slug> [date]"
 	exit 2
 fi
-slug="$2"
+slug=$2
 if [ -z "$3" ]
 then
 	date=$(date +%Y-%m-%d)
 	year=$(date +%Y)
 	post_date=$(date +%Y/%m/%d)
 else
-	date=$(date +%Y-%m-%d -d "$3")
-	year=$(date +%Y -d "$3")
-	post_date=$(date +%Y/%m/%d -d "$3")
+	date=$(date +%Y-%m-%d -d $3)
+	year=$(date +%Y -d $3)
+	post_date=$(date +%Y/%m/%d -d $3)
 fi
 
 # load info from cast specific config file
-. "$config"
+. $config
 
-if [ -z "$file_prefix" ]
+if [ -z "${file_prefix}" ]
 then
 	echo "${config} must set file_prefix."
 	exit 1
@@ -88,7 +88,7 @@ clean "${base_file}.mp3"
 echo ""
 # encode lossy, MP3, adding ID3v2 tags for everything
 # *except* cover art
-lame -b "${mp3_bitrate}" \
+lame -b ${mp3_bitrate} \
 --cbr \
 --tt "${title}" \
 --ta "${artist}" \
@@ -98,28 +98,91 @@ lame -b "${mp3_bitrate}" \
 --tg "${genre}" \
 --id3v2-only \
 --noreplaygain \
-"${base_file}".flac \
-"${base_file}".mp3
+${base_file}.wav \
+${base_file}.mp3
 
 # lame package from Lucid lacks the --ti switch for image
 # found eyed3 via a web search
-eyeD3 --add-image "${cover}":FRONT_COVER \
+eyeD3 --add-image ${cover}:FRONT_COVER \
 --url-frame="WCOP:${copyright}" \
-"${base_file}".mp3
+${base_file}.mp3
 
 echo ""
-echo "Tagging ${base_file}.flac."
+echo "Encoding ${base_file}.flac."
+clean "${base_file}.flac"
 echo ""
 # lossless encoding
-metaflac \
---import-picture-from="|image/png|||${cover}" \
---set-tag=title="${title}" \
---set-tag=artist="${artist}" \
---set-tag=album="${album}" \
---set-tag=year="${year}" \
---set-tag=genre="${genre}" \
---set-tag=composer="${artist}" \
---set-tag=comment="${comment}"  \
---set-tag=url="${url}"  \
---set-tag=copyright="${copyright}"  \
-"${base_file}".flac
+flac \
+--picture="|image/jpeg|||${cover}" \
+--tag=title="${title}" \
+--tag=artist="${artist}" \
+--tag=album="${album}" \
+--tag=year="${year}" \
+--tag=genre="${genre}" \
+--tag=composer="${artist}" \
+--tag=comment="${comment}"  \
+--tag=url="${url}"  \
+--tag=copyright="${copyright}"  \
+${base_file}.wav
+
+echo ""
+echo "Encoding ${base_file}.m4a at ${aac_quality}."
+clean "${base_file}.m4a"
+echo ""
+# AAC encoding, lossy
+# docs recommend against setting bandwidth and bitrate setting
+# doesn't seem to result in the desired quality as tweaking
+# the quality setting (max 500)--200 was arrived at by iteratively
+# encoding the same raw audio and subjective listening to the results
+ffmpeg -i ${base_file}.wav \
+-b:a ${aac_quality}k \
+-metadata title="${title}"  \
+-metadata artist="${artist}" \
+-metadata album="${album}" \
+-metadata year="${year}"  \
+-metadata genre="${genre}" \
+-metadata writer="${artist}" \
+-metadata comment="${comment}"  \
+-strict experimental \
+${base_file}.m4a
+
+#-metadata cover-art="${cover}" \
+#-acodec fdk_aac \
+
+#faac -q ${aac_quality} \
+#-o ${base_file}.m4a \
+#--title "${title}"  \
+#--artist "${artist}" \
+#--album "${album}" \
+#--year "${year}" \
+#--genre "${genre}" \
+#--writer "${artist}" \
+#--comment "${comment}"  \
+#--cover-art "${cover}" \
+#${base_file}.wav
+
+if [ -f "${aac_notes_path}/${date}.notes" ]
+then
+	# put together the just-so input file for mp4chaps
+	echo "00:00:00.000 Start" > \
+	${base_file}.chapters.txt
+	grep "{{offset|" ${aac_notes_path}/${date}.notes | \
+	sed -e "s/.*offset|\(.*\)}}.*|\(.*\)}}.*/\1 \2/" >> \
+	${base_file}.chapters.txt
+
+	# write the chapter marks to the AAC/MP4 file
+	mp4chaps -o -z -i ${base_file}.m4a
+fi
+
+echo ""
+echo "Encoding ${base_file}.ogg at quality ${ogg_quality}."
+clean "${base_file}.ogg"
+echo ""
+# encode the Ogg Vorbis from the flac copies the tags/comments
+# already set into the flac file except the cover art;
+# using metaflac, can encode the binary block in flac
+# per the latest recommendations from Xiph for cover art
+oggenc \
+-q ${ogg_quality} \
+--comment=METADATA_BLOCK_PICTURE="$(metaflac --export-picture-to=- ${base_file}.flac| base64 -w 0)"  \
+${base_file}.flac