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refactor(player): E.10 — extract normalization-IPC deduplicators (#573)

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`invokeAudioSetNormalizationDeduped` (450 ms window for
`audio_set_normalization`) and `invokeAudioUpdateReplayGainDeduped`
(250 ms window for `audio_update_replay_gain`, with LUFS-target /
pre-trim implicitly contributing to the dedupe key) move into
`src/store/normalizationIpcDedupe.ts` along with their four
"last-invoked" mutables.

File-private throughout; three internal call sites become plain
imports. 11 focused tests cover the window-boundary behaviour, the
payload-field sensitivity, the engine-mode key contribution
(re-fires when LUFS target changes even with identical gain), and
the null / NaN serialization.

playerStore 3369 → 3302 LOC.
This commit is contained in:
Frank Stellmacher
2026-05-12 14:07:44 +02:00
committed by GitHub
parent 89bf7e2364
commit 86b13dd4d0
3 changed files with 226 additions and 71 deletions
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src/store/playerStore.ts
+4 -71
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@@ -65,6 +65,10 @@ import {
schedulePauseTimer,
scheduleResumeTimer,
} from './scheduleTimers';
import {
invokeAudioSetNormalizationDeduped,
invokeAudioUpdateReplayGainDeduped,
} from './normalizationIpcDedupe';
// Re-export the playback-progress public surface so existing call sites
// (PlayerBar, FullscreenPlayer, WaveformSeek, LyricsPane, MobilePlayerView,
@@ -648,77 +652,6 @@ function bumpWaveformRefreshGen(trackId: string) {
* preload + current-track completion can stack two SQLite reads + two state writes. */
const loudnessRefreshInflight = new Map<string, Promise<void>>();
/** Skip redundant `audio_set_normalization` IPC when the same payload is sent twice within a short window (e.g. StrictMode). */
let lastNormAudioInvokeKey = '';
let lastNormAudioInvokeAtMs = 0;
function invokeAudioSetNormalizationDeduped(payload: {
engine: string;
targetLufs: number;
preAnalysisAttenuationDb: number;
}) {
const key = `${payload.engine}|${payload.targetLufs}|${payload.preAnalysisAttenuationDb}`;
const now = Date.now();
if (key === lastNormAudioInvokeKey && now - lastNormAudioInvokeAtMs < 450) {
return;
}
lastNormAudioInvokeKey = key;
lastNormAudioInvokeAtMs = now;
void invoke('audio_set_normalization', payload).catch(() => {});
}
/**
* Skip redundant `audio_update_replay_gain` IPC when the same payload was sent
* recently. updateReplayGainForCurrentTrack runs from the analysis:loudness-partial
* listener (~every 900 ms while LUFS is on); without dedupe each tick triggers a
* full IPC roundtrip + backend audio:normalization-state echo + frontend setState,
* which saturates the WebView2 renderer thread on Windows after a few minutes.
*/
let lastRgInvokeKey = '';
let lastRgInvokeAtMs = 0;
function invokeAudioUpdateReplayGainDeduped(payload: {
volume: number;
replayGainDb: number | null;
replayGainPeak: number | null;
loudnessGainDb: number | null;
preGainDb: number;
fallbackDb: number;
}) {
const auth = useAuthStore.getState();
/** Must vary when LUFS target / pre-trim changes: Rust recomputes in `audio_update_replay_gain` even if JS still sends the same cached dB. */
const preEff =
auth.normalizationEngine === 'loudness'
? effectiveLoudnessPreAnalysisAttenuationDb(
auth.loudnessPreAnalysisAttenuationDb,
auth.loudnessTargetLufs,
)
: auth.loudnessPreAnalysisAttenuationDb;
const normDedupeKey =
auth.normalizationEngine === 'loudness'
? `loudness|tgt=${auth.loudnessTargetLufs}|pre=${preEff.toFixed(2)}`
: auth.normalizationEngine === 'replaygain'
? 'replaygain'
: 'off';
const fmt = (v: number | null) => (v == null || !Number.isFinite(v) ? 'null' : v.toFixed(3));
const key = [
normDedupeKey,
payload.volume.toFixed(4),
fmt(payload.replayGainDb),
fmt(payload.replayGainPeak),
fmt(payload.loudnessGainDb),
payload.preGainDb.toFixed(2),
payload.fallbackDb.toFixed(2),
].join('|');
const now = Date.now();
if (key === lastRgInvokeKey && now - lastRgInvokeAtMs < 250) {
return;
}
lastRgInvokeKey = key;
lastRgInvokeAtMs = now;
invoke('audio_update_replay_gain', payload).catch(console.error);
}
function resetLoudnessBackfillStateForTrackId(trackId: string) {
for (const k of loudnessCacheStateKeysForTrackId(trackId)) {
delete analysisBackfillInFlightByTrackId[k];