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[nyarlathotep] Convert podcast m4a files to mp3 #242

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merged 1 commit into from
Nov 9, 2023
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[nyarlathotep] Convert podcast m4a files to mp3 #242

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2 changes: 1 addition & 1 deletion hosts/nyarlathotep/configuration.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -363,7 +363,7 @@ in
enable = true;
description = "Automatically tag new podcast files";
wantedBy = [ "multi-user.target" ];
path = with pkgs; [ inotifyTools id3v2 ];
path = with pkgs; [ ffmpeg inotifyTools id3v2 ];
unitConfig.RequiresMountsFor = "/mnt/nas";
serviceConfig = {
WorkingDirectory = "/mnt/nas/music/Podcasts/";
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12 changes: 12 additions & 0 deletions hosts/nyarlathotep/jobs/tag-podcasts.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,18 @@ set -e

sleep 60

for m4afile in */in/*.m4a; do
if [[ ! -f "$m4afile" ]]; then
break
fi

bitrate=$(ffprobe -v quiet -of flat=s=_ -show_entries format=bit_rate "${m4afile}" | sed 's/[^0-9]*//g')
destination="$(echo "$m4afile" | sed 's:m4a$:mp3:')"
echo "m4a: ${m4afile} -> ${destination}" >&2
ffmpeg -y -i "$m4afile" -codec:a libmp3lame -b:a "$bitrate" -q:a 2 "$destination"
rm "$m4afile"
done

for mp3file in */in/*.mp3; do
if [[ ! -f "$mp3file" ]]; then
break
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