yt-dlp's flat extraction mis-attributes bandcamp uploads: on a label
account the artist becomes the label, and many files ship untagged. After
a download, guess (artist, title, album) from the richer download metadata
and the "Artist - Title" filename shape, confirm against MusicBrainz, and
write ID3 tags into the file. Existing tags are respected; MusicBrainz is
primary, filename parsing only a fallback.
The file's tags are the single source of truth: the provider reads them
back on the next pick, so the corrected identity (incl. MBID) is in place
before the scheduler keys and anti-repeat-checks the track, and cache
reuse inherits it too.
Fetchers now return (path, Track) so the corrected metadata flows back.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add a second playback source and a weighted scheduler mixing it with
Navidrome:
- Scheduler picks a provider by SOURCE_WEIGHTS, falling through to the
others when one has nothing ready, so no source can stall playback.
- YtdlpProvider reads a hand-maintained config/urls.txt; container URLs
(playlist/album/label/artist) are flat-extracted and one entry is
drawn at random, honouring the anti-repeat window. Adds Track.source_url.
- YtdlpFetcher downloads bestaudio via the yt-dlp library, reusing the
atomic hidden-temp-then-rename pattern; Liquidsoap decodes the result.
- Queue now dispatches to a fetcher registry keyed by backend.
- Sweep orphaned download temp files on daemon startup (leftovers from a
killed container otherwise pile up and trip the stream fallback).
Verified end-to-end: yt-dlp opus decoded and served as 192 kbps MP3, and
the 3:1 default mix observed in play history.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Replace the directory-scan queue with a real ingestion pipeline:
provider -> fetcher -> cache -> ready queue, driven by a background
prefetch thread.
- subsonic.py: minimal OpenSubsonic client (salted-token auth,
getPlaylists/getPlaylist, raw streaming download).
- providers/navidrome.py: pick tracks from a playlist (by name or id),
with anti-repeat and periodic playlist reload.
- fetchers/subsonic.py: atomic download into the shared cache.
- db.py: SQLite state — append-only play history (anti-repeat + stats)
and cache_files LRU retention (keep the N most recently played).
- queue.py: prefetch buffer + retention on play; graceful degradation
to the stream's local-cache fallback when no source is configured.
- api.py: GET /next now carries real title/artist metadata.
- Config via .env (Navidrome credentials), persistent state/ volume,
httpx dependency.
Verified end-to-end against a live Navidrome: playlist resolved,
tracks downloaded and broadcast, retention and history correct.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
