- Reduce polling interval from 800ms to 1200ms across download progress, library scan, and Android native stream
- Add dirty-flag caching to Go GetMultiProgress() to skip redundant JSON marshaling
- Replace eager provider initialization with staggered Timer-based warmup (400/900/1600ms)
- Add snapshot-based incremental library scan to avoid large MethodChannel payloads
- Move history stats and grouped album filtering to Riverpod providers for better cache invalidation
- Cap home tab history preview to 48 items with deep equality wrapper to reduce rebuilds
- Throttle foreground service notification updates to 2% progress buckets
- Migrate PageView to PageView.builder with AutomaticKeepAliveClientMixin
- Add comparison table to README
- Add fast-path SAF metadata reading via /proc/self/fd with displayNameHint support, falling back to temp copy
- Replace repeated findFile() CUE audio sibling lookups with cached case-insensitive directory listing
- Cache parsed CUE sheets to avoid redundant parsing during library scans
- Optimize incremental scan CUE modTime lookup from O(N*M) to O(N+M)
- Defer local library provider loading until localLibraryEnabled setting is true
- Replace O(n) track+artist history lookup with O(1) map-based lookup
- Delay startup maintenance tasks by 2s to reduce launch-time contention
Parse .cue files in library scanner (Go + SAF) to display individual
tracks instead of one large audio file. Add FFmpeg-based CUE splitting
to extract tracks into separate FLAC files with embedded metadata and
cover art.
- Go: CUE parser, two-pass scan (CUE first, skip referenced audio),
virtual paths (cue#trackNN) for DB UNIQUE constraint, audioDir
override for SAF temp-file scenarios
- Android: SAF scanner recognizes .cue in both full and incremental
scan, copies .cue+audio to temp for Go parsing, unchanged-CUE audio
sibling dedup, parseCueSheet handler resolves SAF audio siblings
- Dart: FFmpegService.splitCueToTracks, CUE split UI in track metadata
screen, persistent output dir for SAF splits with write-back
- CUE virtual path normalization across fileExists/fileStat/deleteFile/
openFile; play/share/open blocked for virtual tracks with guidance to
split first; delete only removes DB entry, not shared .cue file
- iOS: parseCueSheet handler
- Localization: 12 new CUE-related strings
Requested by @Seerafimm
Closes#201
- Extract normalizeOptionalString() to lib/utils/string_utils.dart from download_queue_provider and track_metadata_screen
- Extract PrioritySettingsScaffold widget from lyrics and metadata priority pages, reducing ~280 lines of duplication
- Extract _ensureDefaultDocumentsOutputDir/_ensureDefaultAndroidMusicOutputDir in download queue provider
- Extract collectLibraryAudioFiles() and applyDefaultLibraryMetadata() in Go library_scan.go
- Extract plainTextLyricsLines() in Go lyrics.go, used by Apple Music, Musixmatch, and QQ Music clients
- Add Genre/Label/Copyright fields to DownloadResult struct
- buildDownloadSuccessResponse now prefers service result metadata over request
- enrichRequestExtendedMetadata fetches Deezer metadata by ISRC before download
- Flutter sends copyright in download request payload
- History merge preserves existing genre/label/copyright on re-download
- Accurate MP3 duration via Xing/VBRI VBR headers, MPEG2/2.5 bitrate tables
- Accurate Opus/Vorbis duration via last Ogg page granule position
- Bitrate field added to LibraryScanResult, LocalLibraryItem, DB v4 migration
- Lossy formats display format+bitrate instead of fake 16-bit quality
- Local library file date uses fileModTime instead of scannedAt
- SAF URI recovery for transient FD paths after download
- Improved SAF repair and download history path matching in library scan
- Extract quality probe logic into reusable enrichResultQualityFromFile
- Add local library albums as clickable cards in Albums filter
- Merge downloaded and local albums into single unified grid (fix layout gaps)
- Create LocalAlbumScreen for viewing local album details with:
- Cover art display with dominant color extraction
- Album info card with Local badge and quality info
- Track list with disc grouping support
- Selection mode with delete functionality
- UI consistent with DownloadedAlbumScreen (Card + ListTile layout)
- Add singles filter support for local library singles
- Add extractDominantColorFromFile to PaletteService
- Add delete(id) method to LibraryDatabase
- Add removeItem(id) method to LocalLibraryNotifier
- Update CHANGELOG.md for v3.4.0
- Add Go backend library scanner for FLAC, M4A, MP3, Opus, OGG files
- Read metadata from file tags (ISRC, track name, artist, album, bit depth, sample rate)
- Fallback to filename parsing when tags unavailable
- Add SQLite database for O(1) duplicate lookups
- Show 'In Library' badge on search results for existing tracks
- Match by ISRC (exact) or track name + artist (fuzzy)
- Add Library Settings page with scan, cleanup, and clear actions
- Add 30+ localization strings for library feature