copyparty/bin/mtag

standalone programs which take an audio file as argument

you may want to forget about all this fancy complicated stuff and just use event hooks instead (which doesn't need -e2ts or ffmpeg)

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NOTE: these all require -e2ts to be functional, meaning you need to do at least one of these: apt install ffmpeg or pip3 install mutagen

some of these rely on libraries which are not MIT-compatible

• audio-bpm.py detects the BPM of music using the BeatRoot Vamp Plugin; imports GPL2
• audio-key.py detects the melodic key of music using the Mixxx fork of keyfinder; imports GPL3

these invoke standalone programs which are GPL or similar, so is legally fine for most purposes:

• media-hash.py generates checksums for audio and video streams; uses FFmpeg (LGPL or GPL)
• image-noexif.py removes exif tags from images; uses exiftool (GPLv1 or artistic-license)

these do not have any problematic dependencies at all:

• cksum.py computes various checksums
• exe.py grabs metadata from .exe and .dll files (example for retrieving multiple tags with one parser)
• wget.py lets you download files by POSTing URLs to copyparty
  • also available as an event hook

dependencies

run install-deps.sh to build/install most dependencies required by these programs (supports windows/linux/macos)

alternatively (or preferably) use packages from your distro instead, then you'll need at least these:

• from distro: numpy vamp-plugin-sdk beatroot-vamp mixxx-keyfinder ffmpeg
• from pip: keyfinder vamp

usage from copyparty

copyparty -e2dsa -e2ts followed by any combination of these:

• -mtp key=f,audio-key.py

• -mtp .bpm=f,audio-bpm.py

• -mtp ahash,vhash=f,media-hash.py

• f, makes the detected value replace any existing values

• the . in .bpm indicates numeric value

• assumes the python files are in the folder you're launching copyparty from, replace the filename with a relative/absolute path if that's not the case

• mtp modules will not run if a file has existing tags in the db, so clear out the tags with -e2tsr the first time you launch with new mtp options

usage with volflags

instead of affecting all volumes, you can set the options for just one volume like so:

copyparty -v /mnt/nas/music:/music:r:c,e2dsa:c,e2ts immediately followed by any combination of these:

• :c,mtp=key=f,audio-key.py
• :c,mtp=.bpm=f,audio-bpm.py
• :c,mtp=ahash,vhash=f,media-hash.py