navidrome/tests/fixtures/test.srt

1
00:00:18,800 --> 00:00:22,800
We're from subtitles

2
00:00:22,801 --> 00:00:26,000
Another subtitle line
feat(subsonic): add structured sidecar lyrics support with OpenSubsonic v2 karaoke cues and agent layers (#5076) Expand backend lyrics support with richer sidecar formats and upgrade the OpenSubsonic songLyrics implementation to the version 2 structured karaoke contract, while preserving version 1 behavior by default. Sidecar formats and parsing: - Add a TTML parser (core/lyrics/ttml.go): clock time, offset time, bare decimal seconds, nested timing contexts, and token-level <span> timing for word/syllable karaoke. Parses Apple Music-style metadata tracks (translation and pronunciation/transliteration) and agent metadata into per-track agents[] plus per-cue-line agentId. Hydrates missing line timing from cue timing. - Add an SRT parser (core/lyrics/srt.go). - Add a LRCLIB Lyricsfile (.yaml/.yml) parser (model/lyricsfile.go): maps per-word lines[].words[] to cues with inclusive UTF-8 byte offsets and attributes overlapping lines to synthetic voice agents so parallel vocals split correctly in the enhanced response. - Extend LRC parsing for Enhanced LRC inline <mm:ss.xx> word-timing markers. - Add UTF-8 BOM and UTF-16 LE support for TTML/LRC sidecars. - Parse the above formats from embedded tags as well as sidecar files. Source resolution: - Default lyricspriority is now ".ttml,.yaml,.yml,.elrc,.lrc,.srt,.txt,embedded" so the new formats are discoverable without manual configuration. - Preserve configured source priority across duplicate media-file candidates instead of only checking the first DB match, so higher-priority sidecar lyrics on older duplicates can still win. - Raise the embedded-lyrics tag maxLength to 1 MB to fit word-timed TTML/Enhanced-LRC karaoke for a full song. OpenSubsonic songLyrics v2: - Advertise songLyrics versions [1, 2]. - With enhanced=true, getLyricsBySongId may return structuredLyrics.kind (main/translation/pronunciation), cueLine[] line-level karaoke groupings, cueLine.cue[] timed words/syllables with required UTF-8 byteStart/byteEnd, reusable structuredLyrics.agents[], and cueLine.agentId references. - Without enhanced=true, the response stays v1-compatible: no kind, no cueLine, no agents, no non-main tracks; the existing line[] payload is always populated so legacy clients keep working. Contract details: - cueLine is emitted only for synced lyrics with cue data. - Within a cueLine, cue.end is normalized all-or-none and overlaps are removed; overlaps across separate cueLines remain valid for parallel vocal layers. - Missing cue end-times are filled from the next cue or the parent line. - When cueLines share an index, the one whose agent has role "main" is first. - LyricCue.Value is serialized as XML chardata; cues with nil start are skipped rather than serialized as 0. Refactoring: - Move pure format parsers into model/ (lyrics.go, lyrics_ttml.go, lyrics_srt.go, lyrics_embedded.go, lyricsfile.go) and extract Subsonic response building into server/subsonic/lyrics.go. - Centralize lyric-kind constants and add Lyrics.EffectiveKind/IsMainKind. - Add gg.Clone helper. Spec references: https://github.com/opensubsonic/open-subsonic-api/discussions/213 https://github.com/opensubsonic/open-subsonic-api/pull/218 (songLyrics v2) https://github.com/opensubsonic/open-subsonic-api/pull/228 (cue byte offsets) 2026-06-19 19:00:58 +03:00			`1`
			`00:00:18,800 --> 00:00:22,800`
			`We're from subtitles`

			`2`
			`00:00:22,801 --> 00:00:26,000`
			`Another subtitle line`