Creating and managing playlists, and managing the filenames and directory structure for large numbers of music files.
Project description
Toolbox for helping creating and managing playlists, and managing the filenames and directory structure for large numbers of music files.
This is mostly tailored to my own usage patterns, although it may be useful to others.
Home page: https://gitlab.com/lilacashes/music-library-tools
PyPI page: https://pypi.org/project/media-tools
Installation
$ pip install media-tools
Usage
mixcloud_upload
Generate a mix on Mixcloud from the contents of a local directory.
Assumes that the given directory contains a number of audio files as well as a picture file (JPEG or
PNG format), one file called description.txt
which contains the description which is printed along
with the mix on Mixcloud, and a file called tags.txt
which contains a newline-separated list of
tags for the mix. The mix is created as an audio file called mix.mp3
in the given directory and
then uploaded to Mixcloud. The title of the mix on Mixcloud will be the name of the directory given,
minus any leading numbers.
Example: You have a directory structured like this:
10 - My awesome mix
|-- 01 - Awesome track.mp3
|-- 02 - Also awesome track.ogg
|-- 03 - Another pretty cool track.m4a
|-- 04 - This track rocks.flac
|-- cover.png
|-- description.txt
|-- tags.txt
$ mixcloud_upload -d "10 - My awesome mix"
will upload this mix to Mixcloud under the name "My awesome mix" with track 01 to 04 in that order.
Authorization
You will need to generate an application on Mixcloud for your account and get an access token, as
described in the Mixcloud API Documentation.
Store this access token as .mixcloud_access_token
.
Configuration options
-d DIRECTORY
,--directory DIRECTORY
: Specify the folder containing the mix, as seen above-e EXTENSIONS [EXTENSIONS ...]
,--extensions EXTENSIONS [EXTENSIONS ...]
: List of file extensions to consider as audio files for the mix. Per default, files ending in.mp3
,.MP3
,.flac
,.m4a
and.ogg
are treated as audio and added to the mix. Change this list of some of your audio files have extensions that are not part of this list, or if you want to exclude some of these extensions.-q
,--quiet
: Only errors are printed. Usually you want to omit-q
, since the entire generating and uploading process takes several minutes, so you want to be sure what is going on.-s
,--strict
: Do not upload the mix if any of these conditions are met:- There is no picture, no
descriptions.txt
or notags.txt
in the upload folder - Any of the audio tracks in the folder is missing the ID3 tag for title or artist. These tags are needed to generate the tracklist for the mix.
- There is no picture, no
-c CROSSFADE_MS
,--crossfade-ms CROSSFADE_MS
: Number of milliseconds to use for crossfading between two tracks. Currently, there can only be one global value which is used between all tracks.-r MAX_RETRY
,--max-retry MAX_RETRY
: Maximum number of retries for failing uploads. Uploads can fail for a number of reasons, such as rate limiting on the Mixcloud side, or because of a bad internet connection. The default number of retries is set to 100, set this to a lower number if you want to give up earlier.
clean_filenames
In general: run a script with the -v
option first to see what it would change. If satisfied, then
re-run it with the -f
option to effect those changes.
Removing useless duplicate strings from filenames:
$ clean_filenames -v clean-filenames --recurse .
$ clean_filenames -f clean-filenames --recurse .
Changing filenames from different numbering schemes to the scheme 01 - filename.ext
:
$ clean_filenames -v clean-numbering .
$ clean_filenames -f clean-numbering .
Removing stray junk, such as underscores, stray dashes, and stray []
and ()
from filenames:
$ clean_filenames -v clean-junk .
$ clean_filenames -f clean-junk .
Undoing renamings done with this script, limited to a specified directory and its subfolders, or a single file name:
$ clean_filenames -v undo .
$ clean_filenames -f undo .
# OR
$ clean_filenames -f undo ./subdir/file_name.mp3
Fixing symlinks to files which have been renamed by any of the previous commands:
$ clean_filenames -v fix-symlinks .
$ clean_filenames -f fix-symlinks .
Checking results
Finding mp3 files which do not conform to the numbering scheme in general:
$ find . -name \*.mp3 | grep -vE '[[:digit:]]+ - .+\.mp3'
Finding mp3 files which have a number in their filename but do not conform to the numbering scheme, excluding some more common use cases:
$ find . -name \*.mp3 | \
grep -E '[[:digit:]]+[^/]+\.mp3' | \
grep -vE '[[:digit:]]+ - .+\.mp3' | \
grep -vE '[[:digit:]]{2}\.mp3'
Audacious playlist tools
Tools for making and repairing playlists containing physical music files from audacious playlists
and the latest music files. The argument to --playlist
defaults to the playlist currently playing
in audacious.
copy_from_playlist
Copying files from the current or specified playlist (as its name in the playlists
subdir in the
audacious configuration folder) to a specified target folder, optionally limiting the number of
files to copy to the first NUM, and optionally renaming the files to reflect the position of the
song in the playlist:
$ copy_from_playlist [-v] copy \
[--playlist PLAYLIST_ID] \
[--number NUM] \
[--renumber] \
TARGET_DIR
Try to find files in the current playlist which are unavailable because they have been moved, and move them back to the place in the filesystem which is noted on the playlist (does not appear to work currently):
$ copy_from_playlist [-v] restore \
[--playlist PLAYLIST_ID]
Copy the newest files to a specified target:
$ copy_from_playlist [-v] copy-newest \
--max-age NUM_DAYS \
--source SOURCE_DIR \
--target TARGET_DIR
buy_most_played
Attempt to buy your most played tracks (in a given period) from several platforms.
...
backup_lastfm_data
Back up Last.FM scrobbles.
...
print_length
Given a directory of audio files, print the total playing length of that directory and all directories below.
...
Development
After cloning, it is recommended to set up the git hook that runs the test suite before every
git push
:
$ cd .git/hooks
$ ln -s ../../.git_hooks/pre-push .
Test suite
Run all in one:
$ .git_hooks/pre-push
Run separately:
$ poetry run mypy .
$ poetry run flake8 .
$ poetry run pylint media_tools
$ poetry run nosetests --with-coverage --cover-package=media_tools.util tests/unit
$ poetry run nosetests tests/integration
Generating a Table of Contents to README.md
$ git add README.md
$ git commit -m 'Before ToC generation'
$ pandoc -s --columns 100 --toc --toc-depth=4 README.md -o README_toc.md
$ mv README_toc.md README.md
$ git add README.md
$ git commit -m 'After ToC generation'
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