98 lines
3.1 KiB
Python
Executable file
98 lines
3.1 KiB
Python
Executable file
#!/usr/bin/env python3
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# Normalisation is done at the default of each program,
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# which is usually -89.0 dB
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import os
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import subprocess
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import coloredlogs
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import logging
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import progressbar
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coloredlogs.install(level='DEBUG', fmt='%(levelname)s %(message)s')
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log = logging.getLogger()
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# Constants
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FORCE = False # TODO UX cli argument
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SOURCE_FOLDER = os.path.join(os.path.expanduser("~"), "Musique")
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GAIN_COMMANDS = {("flac",): ["metaflac", "--add-replay-gain"],
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("mp3",): ["mp3gain", "-a", "-k"] + (["-s", "r"] if FORCE else []),
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("m4a", "mp4"): ["aacgain", "-a", "-k"] + (["-s", "r"] if FORCE else []),
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("ogg",): ["vorbisgain", "--album"] + ([] if FORCE else ["--fast"]),
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}
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# Since metaflac ALWAYS recalculate the tags, we need to specificaly verify
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# that the tags are present on every track of an album to skip it
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def isFlacTagged(f):
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# TODO PERF Run metaflac --show-tag for the whole album and compare the
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# output with the number of files tagged
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for tag in ["REPLAYGAIN_TRACK_GAIN", "REPLAYGAIN_ALBUM_GAIN"]:
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cmd = ["metaflac", "--show-tag", tag, f]
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proc = subprocess.run(cmd, stdout=subprocess.PIPE)
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res = len(proc.stdout.strip()) > 0
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if not res:
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return False
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return True
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# TODO UX Do the same thing with other formats so the output is not
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# inconsistent
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# Get album paths
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albums = set()
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for root, dirs, files in os.walk(SOURCE_FOLDER):
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relRoot = os.path.relpath(root, SOURCE_FOLDER)
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# See if it's an album (only 2 components in the path)
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head, tail = os.path.split(relRoot)
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if not len(head):
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continue
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head, tail = os.path.split(head)
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if len(head):
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continue
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albums.add(root)
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cmds = list()
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for album in albums:
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albumName = os.path.relpath(album, SOURCE_FOLDER)
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log.info("Processing album {}".format(albumName))
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musicFiles = dict()
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for root, dirs, files in os.walk(album):
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for f in files:
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ext = os.path.splitext(f)[1][1:].lower()
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for exts in GAIN_COMMANDS.keys():
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if ext in exts:
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if exts not in musicFiles.keys():
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musicFiles[exts] = set()
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fullPath = os.path.join(root, f)
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musicFiles[exts].add(fullPath)
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if len(musicFiles) >= 2:
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log.warn("Different extensions for album {}. AlbumGain won't be on par.".format(albumName))
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for exts, files in musicFiles.items():
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if exts == ("flac",) and not FORCE:
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allTagged = True
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for f in files:
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if not isFlacTagged(f):
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allTaged = False
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break
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if allTagged:
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log.debug("Already tagged (for flac only)!")
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break
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cmd = GAIN_COMMANDS[exts] + list(files)
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log.debug("Registering command: `{}`".format(" ".join(cmd)))
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cmds.append(cmd)
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logging.info("Executing commands")
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for cmd in progressbar.progressbar(cmds):
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subprocess.run(cmd, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
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