mirror of
https://github.com/beetbox/beets.git
synced 2026-05-16 14:51:03 -04:00
30ab81eb5b
Update all references in core, plugins, and tests to import UserError from the new location. This centralizes exception handling and improves code organization.
742 lines
25 KiB
Python
742 lines
25 KiB
Python
# This file is part of beets.
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# Copyright 2016, Jakob Schnitzer.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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"""Converts tracks or albums to external directory"""
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from __future__ import annotations
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import logging
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import os
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import shlex
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import subprocess
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import tempfile
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import threading
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from functools import cached_property
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from string import Template
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from typing import TYPE_CHECKING, NamedTuple
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import mediafile
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from confuse import ConfigTypeError, Optional
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from beets import plugins, ui, util
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from beets.exceptions import UserError
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from beets.library import Item, parse_query_string
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from beets.plugins import BeetsPlugin
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from beets.util import par_map
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from beets.util.artresizer import ArtResizer
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from beets.util.m3u import M3UFile
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from beetsplug._utils import art
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if TYPE_CHECKING:
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import optparse
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from beets.importer import ImportSession, ImportTask
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from beets.library import Album, Library
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from beets.util.functemplate import Template as FuncTemplate
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_fs_lock = threading.Lock()
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# Keep track of temporary transcoded files for deletion.
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_temp_files: list[bytes] = []
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# Some convenient alternate names for formats.
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ALIASES = {
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"windows media": "wma",
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"vorbis": "ogg",
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}
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LOSSLESS_FORMATS = ["ape", "flac", "alac", "wave", "aiff"]
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class FormatCommand(NamedTuple):
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command: bytes
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ext: bytes
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def replace_ext(path: bytes, ext: bytes) -> bytes:
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"""Return the path with its extension replaced by `ext`.
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The new extension must not contain a leading dot.
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"""
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ext_dot = b"." + ext
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return os.path.splitext(path)[0] + ext_dot
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class ConvertPlugin(BeetsPlugin):
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def __init__(self) -> None:
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super().__init__()
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self.config.add(
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{
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"dest": None,
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"pretend": False,
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"link": False,
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"hardlink": False,
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"threads": os.cpu_count(),
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"format": "mp3",
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"id3v23": "inherit",
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"write_metadata": True,
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"formats": {
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"aac": {
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"command": (
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"ffmpeg -i $source -y -vn -acodec aac -aq 1 $dest"
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),
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"extension": "m4a",
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},
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"alac": {
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"command": (
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"ffmpeg -i $source -y -vn -acodec alac $dest"
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),
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"extension": "m4a",
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},
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"flac": "ffmpeg -i $source -y -vn -acodec flac $dest",
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"mp3": "ffmpeg -i $source -y -vn -aq 2 $dest",
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"opus": (
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"ffmpeg -i $source -y -vn -acodec libopus -ab 96k $dest"
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),
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"ogg": (
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"ffmpeg -i $source -y -vn -acodec libvorbis -aq 3 $dest"
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),
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"wma": "ffmpeg -i $source -y -vn -acodec wmav2 -vn $dest",
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},
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"max_bitrate": None,
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"auto": False,
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"auto_keep": False,
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"tmpdir": None,
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"quiet": False,
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"embed": True,
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"paths": {},
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"no_convert": "",
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"never_convert_lossy_files": False,
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"copy_album_art": False,
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"album_art_maxwidth": 0,
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"delete_originals": False,
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"playlist": None,
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"force": False,
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"keep_new": False,
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}
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)
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self.early_import_stages = [self.auto_convert, self.auto_convert_keep]
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self.register_listener("import_task_files", self._cleanup)
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def commands(self) -> list[ui.Subcommand]:
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cmd = ui.Subcommand("convert", help="convert to external location")
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cmd.parser.add_option(
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"-p",
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"--pretend",
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action="store_true",
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default=self.config["pretend"].get(),
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help="show actions but do nothing",
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)
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cmd.parser.add_option(
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"-t",
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"--threads",
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action="store",
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type="int",
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default=self.config["threads"].get(),
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help=(
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"change the number of threads, defaults to maximum available"
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" processors"
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),
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)
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cmd.parser.add_option(
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"-k",
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"--keep-new",
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action="store_true",
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dest="keep_new",
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default=self.config["keep_new"].get(),
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help="keep only the converted and move the old files",
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)
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cmd.parser.add_option(
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"-d",
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"--dest",
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action="store",
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default=self.config["dest"].get(),
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help="set the destination directory",
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)
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cmd.parser.add_option(
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"-f",
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"--format",
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action="store",
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default=self.config["format"].get(),
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help="set the target format of the tracks",
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)
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cmd.parser.add_option(
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"-y",
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"--yes",
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action="store_true",
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help="do not ask for confirmation",
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)
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cmd.parser.add_option(
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"-l",
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"--link",
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action="store_true",
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default=self.config["link"].get(),
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help="symlink files that do not need transcoding.",
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)
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cmd.parser.add_option(
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"-H",
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"--hardlink",
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action="store_true",
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default=self.config["hardlink"].get(),
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help=(
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"hardlink files that do not need transcoding. Overrides --link."
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),
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)
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cmd.parser.add_option(
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"-m",
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"--playlist",
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action="store",
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default=self.config["playlist"].get(),
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help="""create an m3u8 playlist file containing
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the converted files. The playlist file will be
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saved below the destination directory, thus
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PLAYLIST could be a file name or a relative path.
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To ensure a working playlist when transferred to
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a different computer, or opened from an external
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drive, relative paths pointing to media files
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will be used.""",
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)
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cmd.parser.add_option(
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"-F",
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"--force",
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action="store_true",
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default=self.config["force"].get(),
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help=(
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"force transcoding. Ignores no_convert, "
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"never_convert_lossy_files, and max_bitrate"
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),
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)
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cmd.parser.add_album_option()
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cmd.func = self.convert_func
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return [cmd]
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@cached_property
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def dest(self) -> bytes:
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dest = self.config["dest"].get()
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if not dest:
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raise UserError("no convert destination set")
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return util.bytestring_path(dest)
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@cached_property
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def threads(self) -> int:
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return self.config["threads"].get(int)
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@cached_property
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def path_formats(self) -> dict[str, FuncTemplate]:
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return ui.get_path_formats(self.config["paths"] or None)
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@cached_property
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def fmt(self) -> str:
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return self.config["format"].as_str().lower()
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@cached_property
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def playlist(self) -> bytes | None:
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if (playlist := self.config["playlist"].get()) is not None:
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return os.path.join(self.dest, util.bytestring_path(playlist))
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return None
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@cached_property
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def pretend(self) -> bool:
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return self.config["pretend"].get(bool)
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@cached_property
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def force(self) -> bool:
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return self.config["force"].get(bool)
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@cached_property
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def hardlink(self) -> bool:
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return self.config["hardlink"].get(bool)
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@cached_property
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def link(self) -> bool:
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return not self.hardlink and self.config["link"].get(bool)
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@cached_property
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def command(self) -> FormatCommand:
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"""Return the command template and the extension from the config."""
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fmt = ALIASES.get(self.fmt, self.fmt)
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try:
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format_info = self.config["formats"][fmt].get(dict)
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command = format_info["command"]
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extension = format_info.get("extension", fmt)
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except KeyError:
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raise UserError(f'convert: format {fmt} needs the "command" field')
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except ConfigTypeError:
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command = self.config["formats"][fmt].get(str)
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extension = fmt
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# Convenience and backwards-compatibility shortcuts.
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keys = self.config.keys()
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if "command" in keys:
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command = self.config["command"].as_str()
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elif "opts" in keys:
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# Undocumented option for backwards compatibility with < 1.3.1.
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command = (
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f"ffmpeg -i $source -y {self.config['opts'].as_str()} $dest"
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)
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if "extension" in keys:
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extension = self.config["extension"].as_str()
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return FormatCommand(command.encode("utf-8"), extension.encode("utf-8"))
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def auto_convert(self, session: ImportSession, task: ImportTask) -> None:
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if self.config["auto"]:
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par_map(
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lambda item: self.convert_on_import(session.lib, item),
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task.imported_items(),
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)
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def auto_convert_keep(
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self, session: ImportSession, task: ImportTask
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) -> None:
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if self.config["auto_keep"]:
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items = task.imported_items()
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# Filter items based on should_transcode function
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items = [item for item in items if self.should_transcode(item)]
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self._parallel_convert(items, keep_new=False)
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# Utilities converted from functions to methods on logging overhaul
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def encode(
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self, command_bytes: bytes, source_bytes: bytes, dest_bytes: bytes
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) -> None:
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"""Encode source to destination using given command template.
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Raises `subprocess.CalledProcessError` if the command exited with a
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non-zero status code.
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"""
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pretend, quiet = self.pretend, self.config["quiet"].get(bool)
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if not quiet and not pretend:
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self._log.info("Encoding {}", util.displayable_path(source_bytes))
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command = os.fsdecode(command_bytes)
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source = os.fsdecode(source_bytes)
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dest = os.fsdecode(dest_bytes)
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# Substitute $source and $dest in the argument list.
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args = shlex.split(command)
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encode_cmd = []
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for i, arg in enumerate(args):
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args[i] = Template(arg).safe_substitute(
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{
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"source": source,
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"dest": dest,
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}
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)
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encode_cmd.append(os.fsdecode(args[i]))
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if pretend:
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self._log.info("{}", " ".join(args))
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return
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try:
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util.command_output(encode_cmd)
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except subprocess.CalledProcessError as exc:
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# Something went wrong (probably Ctrl+C), remove temporary files
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self._log.info(
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"Encoding {} failed. Cleaning up...",
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util.displayable_path(source),
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)
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self._log.debug(
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"Command {0} exited with status {1.returncode}: {1.output}",
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args,
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exc,
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)
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util.remove(dest)
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util.prune_dirs(os.path.dirname(dest))
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raise
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except OSError as exc:
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raise UserError(
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f"convert: couldn't invoke {' '.join(args)!r}: {exc}"
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)
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if not quiet and not pretend:
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self._log.info(
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"Finished encoding {}", util.displayable_path(source)
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)
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def in_no_convert(self, item: Item) -> bool:
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no_convert_query = self.config["no_convert"].as_str()
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if no_convert_query:
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query, _ = parse_query_string(no_convert_query, Item)
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return query.match(item)
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else:
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return False
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def should_transcode(self, item: Item) -> bool:
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"""Determine whether the item should be transcoded as part of
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conversion (i.e., its bitrate is high or it has the wrong format).
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If ``force`` is True, safety checks like ``no_convert`` and
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``never_convert_lossy_files`` are ignored and the item is always
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transcoded.
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"""
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if self.force:
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return True
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if self.in_no_convert(item) or (
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self.config["never_convert_lossy_files"].get(bool)
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and item.format.lower() not in LOSSLESS_FORMATS
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):
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return False
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maxbr = self.config["max_bitrate"].get(Optional(int))
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if maxbr is not None and item.bitrate >= 1000 * maxbr:
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return True
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return self.fmt != item.format.lower()
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@util.pipeline.mutator_stage
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def convert_item(self, keep_new: bool, item: Item) -> None:
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"""Convert an Item from the library."""
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pretend, link, hardlink = self.pretend, self.link, self.hardlink
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command, ext = self.command
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dest = item.destination(
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basedir=self.dest, path_formats=self.path_formats
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)
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# Ensure that desired item is readable before processing it. Needed
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# to avoid any side-effect of the conversion (linking, keep_new,
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# refresh) if we already know that it will fail.
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try:
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mediafile.MediaFile(util.syspath(item.path))
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except mediafile.UnreadableFileError as exc:
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self._log.error("Could not open file to convert: {}", exc)
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return
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# When keeping the new file in the library, we first move the
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# current (pristine) file to the destination. We'll then copy it
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# back to its old path or transcode it to a new path.
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if keep_new:
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original = dest
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converted = item.path
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if self.should_transcode(item):
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converted = replace_ext(converted, ext)
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else:
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original = item.path
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if self.should_transcode(item):
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dest = replace_ext(dest, ext)
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converted = dest
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# Ensure that only one thread tries to create directories at a
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# time. (The existence check is not atomic with the directory
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# creation inside this function.)
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if not pretend:
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with _fs_lock:
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util.mkdirall(dest)
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if os.path.exists(util.syspath(dest)):
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self._log.info("Skipping {.filepath} (target file exists)", item)
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return
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if keep_new:
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if pretend:
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self._log.info(
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"mv {.filepath} {}",
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item,
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util.displayable_path(original),
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)
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else:
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self._log.info("Moving to {}", util.displayable_path(original))
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util.move(item.path, original)
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if self.should_transcode(item):
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linked = False
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try:
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self.encode(command, original, converted)
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except subprocess.CalledProcessError:
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return
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else:
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linked = link or hardlink
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if pretend:
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msg = "ln" if hardlink else ("ln -s" if link else "cp")
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self._log.info(
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"{} {} {}",
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msg,
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util.displayable_path(original),
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util.displayable_path(converted),
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)
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else:
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# No transcoding necessary.
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msg = (
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"Hardlinking"
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if hardlink
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else ("Linking" if link else "Copying")
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)
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self._log.info("{} {.filepath}", msg, item)
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if hardlink:
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util.hardlink(original, converted)
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elif link:
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util.link(original, converted)
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else:
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util.copy(original, converted)
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|
|
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if pretend:
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return
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|
|
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id3v23 = self.config["id3v23"].as_choice([True, False, "inherit"])
|
|
if id3v23 == "inherit":
|
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id3v23 = None
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|
|
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# Write tags from the database to the file if requested
|
|
if self.config["write_metadata"].get(bool):
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item.try_write(path=converted, id3v23=id3v23)
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|
|
if keep_new:
|
|
# If we're keeping the transcoded file, read it again (after
|
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# writing) to get new bitrate, duration, etc.
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item.path = converted
|
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item.read()
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item.store() # Store new path and audio data.
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if self.config["embed"] and not linked:
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album = item._cached_album
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if album and album.artpath:
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maxwidth = self._get_art_resize(album.artpath)
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self._log.debug(
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"embedding album art from {.art_filepath}", album
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)
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art.embed_item(
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self._log,
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item,
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album.artpath,
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maxwidth,
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itempath=converted,
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id3v23=id3v23,
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)
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if keep_new:
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plugins.send("after_convert", item=item, dest=dest, keepnew=True)
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else:
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plugins.send(
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"after_convert", item=item, dest=converted, keepnew=False
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)
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def copy_album_art(self, album: Album) -> None:
|
|
"""Copies or converts the associated cover art of the album. Album must
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have at least one track.
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|
"""
|
|
if not album or not album.artpath:
|
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return
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|
|
|
album_item = album.items().get()
|
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# Album shouldn't be empty.
|
|
if not album_item:
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|
return
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|
|
# Get the destination of the first item (track) of the album, we use
|
|
# this function to format the path accordingly to path_formats.
|
|
dest = album_item.destination(
|
|
basedir=self.dest, path_formats=self.path_formats
|
|
)
|
|
|
|
# Remove item from the path.
|
|
dest = os.path.join(*util.components(dest)[:-1])
|
|
|
|
dest = album.art_destination(album.artpath, item_dir=dest)
|
|
if album.artpath == dest:
|
|
return
|
|
|
|
if not (pretend := self.pretend):
|
|
util.mkdirall(dest)
|
|
|
|
if os.path.exists(util.syspath(dest)):
|
|
self._log.info(
|
|
"Skipping {.art_filepath} (target file exists)", album
|
|
)
|
|
return
|
|
|
|
# Decide whether we need to resize the cover-art image.
|
|
maxwidth = self._get_art_resize(album.artpath)
|
|
|
|
# Either copy or resize (while copying) the image.
|
|
if maxwidth is not None:
|
|
self._log.info(
|
|
"Resizing cover art from {.art_filepath} to {}",
|
|
album,
|
|
util.displayable_path(dest),
|
|
)
|
|
if not pretend:
|
|
ArtResizer.shared.resize(maxwidth, album.artpath, dest)
|
|
else:
|
|
link, hardlink = self.link, self.hardlink
|
|
if pretend:
|
|
msg = "ln" if hardlink else ("ln -s" if link else "cp")
|
|
|
|
self._log.info(
|
|
"{} {.art_filepath} {}",
|
|
msg,
|
|
album,
|
|
util.displayable_path(dest),
|
|
)
|
|
else:
|
|
msg = (
|
|
"Hardlinking"
|
|
if hardlink
|
|
else ("Linking" if link else "Copying")
|
|
)
|
|
|
|
self._log.info(
|
|
"{} cover art from {.art_filepath} to {}",
|
|
msg,
|
|
album,
|
|
util.displayable_path(dest),
|
|
)
|
|
if hardlink:
|
|
util.hardlink(album.artpath, dest)
|
|
elif link:
|
|
util.link(album.artpath, dest)
|
|
else:
|
|
util.copy(album.artpath, dest)
|
|
|
|
def convert_func(
|
|
self, lib: Library, opts: optparse.Values, args: list[str]
|
|
) -> None:
|
|
self.config.set(vars(opts))
|
|
dest, pretend = self.dest, self.pretend
|
|
|
|
if opts.album:
|
|
albums = lib.albums(args)
|
|
items = [i for a in albums for i in a.items()]
|
|
if not pretend:
|
|
for a in albums:
|
|
ui.print_(format(a, ""))
|
|
else:
|
|
items = list(lib.items(args))
|
|
if not pretend:
|
|
for i in items:
|
|
ui.print_(format(i, ""))
|
|
|
|
if not items:
|
|
self._log.error("Empty query result.")
|
|
return
|
|
if not (pretend or opts.yes or ui.input_yn("Convert? (Y/n)")):
|
|
return
|
|
|
|
if opts.album and self.config["copy_album_art"]:
|
|
for album in albums:
|
|
self.copy_album_art(album)
|
|
|
|
# If the user supplied a playlist name, create a playlist for files
|
|
# copied to the destination.
|
|
pl_normpath = None
|
|
items_paths = None
|
|
if playlist := self.playlist:
|
|
# Playlist paths are understood as relative to the dest directory.
|
|
pl_normpath = util.normpath(playlist)
|
|
pl_dir = os.path.dirname(pl_normpath)
|
|
items_paths = []
|
|
for item in items:
|
|
item_path = item.destination(
|
|
basedir=dest, path_formats=self.path_formats
|
|
)
|
|
|
|
# When keeping new files in the library, destination paths
|
|
# keep original files and extensions.
|
|
if not opts.keep_new and self.should_transcode(item):
|
|
item_path = replace_ext(item_path, self.command.ext)
|
|
|
|
items_paths.append(os.path.relpath(item_path, pl_dir))
|
|
|
|
self._parallel_convert(
|
|
items, keep_new=self.config["keep_new"].get(bool)
|
|
)
|
|
|
|
if playlist:
|
|
self._log.info("Creating playlist file {}", pl_normpath)
|
|
if not pretend:
|
|
m3ufile = M3UFile(playlist)
|
|
m3ufile.set_contents(items_paths)
|
|
m3ufile.write()
|
|
|
|
def convert_on_import(self, _: Library, item: Item) -> None:
|
|
"""Transcode a file automatically after it is imported into the
|
|
library.
|
|
"""
|
|
if self.should_transcode(item):
|
|
command, ext = self.command
|
|
|
|
# Create a temporary file for the conversion.
|
|
tmpdir = self.config["tmpdir"].get()
|
|
if tmpdir:
|
|
tmpdir = util.bytestring_path(tmpdir)
|
|
fd, dest = tempfile.mkstemp(b"." + ext, dir=tmpdir)
|
|
os.close(fd)
|
|
dest = util.bytestring_path(dest)
|
|
_temp_files.append(dest) # Delete the transcode later.
|
|
|
|
# Convert.
|
|
try:
|
|
self.encode(command, item.path, dest)
|
|
except subprocess.CalledProcessError:
|
|
return
|
|
|
|
# Change the newly-imported database entry to point to the
|
|
# converted file.
|
|
source_path = item.path
|
|
item.path = dest
|
|
item.write()
|
|
item.read() # Load new audio information data.
|
|
item.store()
|
|
|
|
if self.config["delete_originals"]:
|
|
self._log.log(
|
|
logging.DEBUG if self.config["quiet"] else logging.INFO,
|
|
"Removing original file {}",
|
|
source_path,
|
|
)
|
|
util.remove(source_path, False)
|
|
|
|
def _get_art_resize(self, artpath: bytes) -> int | None:
|
|
"""For a given piece of album art, determine whether or not it needs
|
|
to be resized according to the user's settings. If so, returns the
|
|
new size. If not, returns None.
|
|
"""
|
|
newwidth = None
|
|
if self.config["album_art_maxwidth"]:
|
|
maxwidth = self.config["album_art_maxwidth"].get(int)
|
|
size = ArtResizer.shared.get_size(artpath)
|
|
self._log.debug("image size: {}", size)
|
|
if size:
|
|
if size[0] > maxwidth:
|
|
newwidth = maxwidth
|
|
else:
|
|
self._log.warning(
|
|
"Could not get size of image (please see "
|
|
"documentation for dependencies)."
|
|
)
|
|
return newwidth
|
|
|
|
def _cleanup(self, task: ImportTask, session: ImportSession) -> None:
|
|
for path in task.old_paths:
|
|
if path in _temp_files:
|
|
if os.path.isfile(util.syspath(path)):
|
|
util.remove(path)
|
|
_temp_files.remove(path)
|
|
|
|
def _parallel_convert(self, items: list[Item], keep_new: bool):
|
|
"""Run the convert_item function for every items on as many thread as
|
|
defined in threads
|
|
"""
|
|
convert = [self.convert_item(keep_new) for _ in range(self.threads)]
|
|
pipe = util.pipeline.Pipeline([iter(items), convert])
|
|
pipe.run_parallel()
|