Commit Graph
2 Commits
Author SHA1 Message Date
bvandeusenandClaude Opus 5.5 e3aa8629d3 feat(api): deliver loudness gains to every client (M464 #4997)
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release / Build signed APK (releases and dev) (push) Successful in 4m42s
release / integration (push) Successful in 15m33s
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release / Verify release artifacts (tag releases only) (push) Skipped
ReplayGain 2.0 values (gain to -18 LUFS, linear peak) derived from the
stored track and album loudness:

- Web: GET /api/tracks/replay-gain?ids=... (up to 200), a lookup the
  player calls for its queue, rather than a field on every TrackRef
  surface.
- Android: track_gain/track_peak and album_gain/album_peak on the sync
  views, so cached tracks level offline. Storing a measurement logs a
  track change, and an album's values moving logs an album change, both
  before the write (#2704), so caches pick the gains up.
- OpenSubsonic: replayGain on every song (album, getSong, search3,
  starred), as a JSON object and an XML element.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-06 13:54:05 -04:00
bvandeusenandClaude Opus 5.5 c2f81bf8df feat(library): album loudness from the tracks' summed block histograms (M464 #4996)
release / go (push) Successful in 1m47s
release / govulncheck (push) Successful in 27s
release / web (push) Successful in 1m27s
release / integration (push) Successful in 4m51s
release / android (push) Successful in 6m23s
release / Build signed APK (releases and dev) (push) Successful in 6m25s
release / Attach APK to the Release (tag releases only) (push) Skipped
release / Build + push container image (push) Successful in 1m30s
release / Verify release artifacts (tag releases only) (push) Skipped
Album-mode normalization plays a whole album at one gain. That gain comes
from album_loudness (migration 0066): BS.1770's gated loudness over every
block on the album, computed by summing the tracks' stored histograms and
gating the sum. No audio is decoded again. Album true peak is the loudest
track's.

- Recomputed by the loudness worker each tick, after the track pass and
  whether or not analysis is switched on. ListAlbumsNeedingLoudness lists
  albums whose md5 over (present track id, measurement version and time) no
  longer matches the stored digest. One comparison covers every way
  membership changes (scan retag, duplicate merge, delete, missing and
  restored) without hooking each.
- No album value until every present track has a settled measurement, so
  an album's gain doesn't shift mid-listen as the rest is measured. Silent
  and unreadable tracks count as settled.
- Rows for albums with no present track left are dropped.
- The parser and the merge share trimBins.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-06 13:27:02 -04:00