## Problem
Some trackers — MyAnonamouse in particular — distribute AAC audiobooks
as per-chapter `.mp4` files. That's the same ISO-BMFF container as
`.m4a`/`.m4b`, just with the generic extension (`ftyp isom`,
audio-only).
Today those releases:
1. show up in Prowlarr search results with **no format chip** — only the
generic "Audiobook" icon, because no format could be inferred;
2. download successfully; then
3. fail post-processing with **"No book files found in download"**,
because `.mp4` isn't in `AUDIOBOOK_FORMATS` (`shelfmark/core/utils.py`).
Real example: MAM #627978, *The Martian* (Andy Weir, 2020 edition) — 142
files `0001 … 0142 Andy Weir (2020) The Martian.mp4` + `cover.jpg`, 305
MB. Every file is a valid AAC-in-MP4 chapter.
Adding `mp4` to `SUPPORTED_AUDIOBOOK_FORMATS` in `settings.json` doesn't
help since the hard-coded tuple is what post-processing scans against.
## Change
- Add `"mp4"` to `AUDIOBOOK_FORMATS` (single source of truth — settings
UI, Prowlarr parsing, IRC parser, archive extraction and post-download
scan all derive from it), with a comment explaining why.
- Add `".mp4"` to the two hand-maintained debrid `_BOOK_EXTENSIONS`
lists (AllDebrid / Real-Debrid) so file selection matches.
- Slot `mp4` into the IRC `AUDIOBOOK_FORMAT_PRIORITY` table right after
`m4a` (same container family).
- Update the documented default in `docs/environment-variables.md`.
- New regression test
`test_audiobook_multifile_mp4_chapters_are_book_files` modelled on the
existing multi-file usenet test.
### Note for existing installs
The legacy-default migration only widens configs that still hold the old
`m4b,mp3` list, so users on the current widened default won't pick up
`mp4` automatically — they'll need to tick it in Settings → Audiobook
formats. New installs get it by default. Happy to extend the migration
if you'd rather it be automatic.
## Testing
- `ruff check` / `ruff format --check`: clean
- `pytest tests/core tests/config tests/irc tests/prowlarr
tests/download -m "not integration and not e2e"`: 2296 passed, new test
+ `test_audiobook_format_consistency.py` all green. The 10 failures in
`test_entrypoint_permissions.py` / `test_orchestrator_stall.py`
reproduce identically on untouched `main` on macOS and are unrelated.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Follow-up to #1237. \`rename_and_group\` only grouped when the source
root was a directory, so a multi-file audiobook delivered as a single
archive fell through to the flat path: a \`Book.zip\` of twelve chapters
landed loose in the destination root with its original chapter names —
the layout #1181 is about.
The \`is_dir()\` guard was there to keep \`Book.zip/\` from becoming the
folder name, but skipping the file case gives up the grouping instead of
naming it. A non-directory source can only produce several book files by
having been extracted (\`collect_staged_files\` returns a single-element
list for every other file shape), so the archive stem is the release
name and the suffix is packaging: group under \`Book/\`.
Also regenerates the env docs for the new option and gives it the same
\"do not use with ingest folders\" caveat Rename and Organize carries,
since both now create directories in the destination.
Tested: reverting only the source fix makes both new tests fail and the
\`rename\` control case pass, so grouping stays opt-in. Full non-e2e
suite green (2653 passed).
Pass the effective source root from `process_folder_output` into
`transfer_book_files`, and have the transfer layer select a sanitized
child directory named after that source root when an audiobook has
multiple files and its organization mode is `none` or `rename`. Create
that grouping directory before applying the existing hardlink/copy/move
logic so operation accounting, torrent seeding preservation, collision
handling, cleanup, and custom-script final paths continue to use the
established production path. Completed multi-file audiobook torrents
arrive as a directory whose chapter filenames may not identify the book,
but folder output currently sends every discovered chapter directly to
the configured destination in `none` and `rename` modes. This flattens
chapters from unrelated books together and causes directory-oriented
consumers such as Audiobookshelf to interpret individual chapters as
separate books.
A multi-file audiobook torrent in the default `rename` mode copies or
hardlinks all supported chapter files beneath `<destination>/<original
torrent directory>/` with their original chapter filenames, and places
no chapters directly in the destination root; A multi-file audiobook in
`none` mode receives the same source-folder grouping without renaming
its chapter files.
Fixes#1181
---------
Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>
Co-authored-by: CaliBrain <calibrain@l4n.xyz>
- Added the manual retry option for failed downloads
- Added the ability to retry failed post-processing using existing
downloaded file
- Added admin-visible "Download as" selector, admin chooses a user to
download on-behalf of - inherits their output preferences.
- Added search mode and default metadata provider / release source
options to User Preferences and My Account settings.
- Added sort by format option in release results
- Added {OriginalName} renaming field option, to retain the exact
downloaded filename
- Frontend dependency updates - fixes rollup vulnerability from this
week
Closes#662#656#649#562
- Moved backend OIDC functionality to external library Authlib to help
maintainability
- Separated User settings UI into individual components, allowing for
standard settings UI decorator components to be used.
- Added full support for reverse proxy and CWA users alongside local and
OIDC
- Added mapping and syncing functionality for OIDC, CWA and reverse
proxy users
- Added per-user settings into the app-wide config system. Each config
can be declared as user-overrideable, and app-wide functionality can now
receive user-specific options via standard config calls.
- Added per-user audiobook destination config
- Updated login modal UI for simplified login, plus custom labels for
OIDC login
- Added user visibility in header dropdown
- Unified "restrict settings to admin" to use app-wide user roles.
- Add new booklore API file formats
- Renamed cookie for better login persistence with reverse proxy
- Updated fs.py to try hardlink before atomic move from tmp dir
- Fix transmission URL parsing
- Fix scenario where file processing of huge files starves the
healthcheck
- Large enhancements to custom scripting, including passing JSON
download info, more consistent activation across output types,
decoupling from staging behavior, and added full documentation.
- Added new book output option **upload to Booklore**, available in
download settings
- Got annoyed at my messy processing code while implementing Booklore so
refactored the whole thing
- Full black box file processing testing with randomised configuration
- Deluge: Connect via WebUI auth for simplified setup
- Added env vars documentation, auto generated via script, and unlocked
most settings to be used as env vars
jakesterpdxandClaude Fable 5
CaliBrain
Alex
Alex