mirror of
https://github.com/9001/copyparty.git
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122 lines
3.3 KiB
Python
Executable File
122 lines
3.3 KiB
Python
Executable File
#!/usr/bin/env python3
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import json
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import os
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import sys
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import subprocess as sp
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_ = r"""
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sends all uploaded audio files through an aggressive
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dynamic-range-compressor to even out the volume levels
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dependencies:
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ffmpeg
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being an xau hook, this gets eXecuted After Upload completion
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but before copyparty has started hashing/indexing the file, so
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we'll create a second normalized copy in a subfolder and tell
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copyparty to hash/index that additional file as well
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example usage as global config:
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-e2d -e2t --xau j,c1,bin/hooks/podcast-normalizer.py
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parameters explained,
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e2d/e2t = enable database and metadata indexing
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xau = execute after upload
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j = this hook needs upload information as json (not just the filename)
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c1 = this hook returns json on stdout, so tell copyparty to read that
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example usage as a volflag (per-volume config):
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-v srv/inc/pods:inc/pods:r:rw,ed:c,xau=j,c1,bin/hooks/podcast-normalizer.py
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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(share fs-path srv/inc/pods at URL /inc/pods,
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readable by all, read-write for user ed,
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running this xau (exec-after-upload) plugin for all uploaded files)
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example usage as a volflag in a copyparty config file:
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[/inc/pods]
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srv/inc/pods
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accs:
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r: *
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rw: ed
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flags:
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e2d # enables file indexing
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e2t # metadata tags too
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xau: j,c1,bin/hooks/podcast-normalizer.py
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"""
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########################################################################
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### CONFIG
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# filetypes to process; ignores everything else
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EXTS = "mp3 flac ogg opus m4a aac wav wma"
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# the name of the subdir to put the normalized files in
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SUBDIR = "normalized"
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########################################################################
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# try to enable support for crazy filenames
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try:
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from copyparty.util import fsenc
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except:
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def fsenc(p):
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return p.encode("utf-8")
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def main():
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# read info from copyparty
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inf = json.loads(sys.argv[1])
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vpath = inf["vp"]
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abspath = inf["ap"]
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# check if the file-extension is on the to-be-processed list
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ext = abspath.lower().split(".")[-1]
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if ext not in EXTS.split():
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return
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# jump into the folder where the file was uploaded
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# and create the subfolder to place the normalized copy inside
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dirpath, filename = os.path.split(abspath)
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os.chdir(fsenc(dirpath))
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os.makedirs(SUBDIR, exist_ok=True)
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# the input and output filenames to give ffmpeg
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fname_in = fsenc(f"./{filename}")
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fname_out = fsenc(f"{SUBDIR}/{filename}.opus")
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# fmt: off
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# create and run the ffmpeg command
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cmd = [
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b"ffmpeg",
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b"-nostdin",
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b"-hide_banner",
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b"-i", fname_in,
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b"-af", b"dynaudnorm=f=100:g=9", # the normalizer config
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b"-c:a", b"libopus",
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b"-b:a", b"128k",
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fname_out,
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]
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# fmt: on
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sp.check_output(cmd)
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# and finally, tell copyparty about the new file
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# so it appears in the database and rss-feed:
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vpath = f"{SUBDIR}/{filename}.opus"
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print(json.dumps({"idx": {"vp": [vpath]}}))
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# (it's fine to give it a relative path like that; it gets
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# resolved relative to the folder the file was uploaded into)
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if __name__ == "__main__":
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try:
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main()
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except Exception as ex:
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print("podcast-normalizer failed; %r" % (ex,))
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