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fix(subtitle-ws): send tokenized payloads to texthooker

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This commit is contained in:
Kyle Yasuda
2026-02-19 17:21:26 -08:00
parent d5d71816ac
commit 7795cc3d69
5 changed files with 376 additions and 179 deletions
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41
src/core/services/subtitle-processing-controller.ts
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@@ -15,19 +15,11 @@ export function createSubtitleProcessingController(
deps: SubtitleProcessingControllerDeps,
): SubtitleProcessingController {
let latestText = '';
let lastPlainText = '';
let lastEmittedText = '';
let processing = false;
let staleDropCount = 0;
const now = deps.now ?? (() => Date.now());
const emitPlainSubtitle = (text: string): void => {
if (text === lastPlainText) {
return;
}
lastPlainText = text;
deps.emitSubtitle({ text, tokens: null });
};
const processLatest = (): void => {
if (processing) {
return;
@@ -38,14 +30,20 @@ export function createSubtitleProcessingController(
void (async () => {
while (true) {
const text = latestText;
const startedAtMs = now();
if (!text.trim()) {
deps.emitSubtitle({ text, tokens: null });
lastEmittedText = text;
break;
}
const startedAtMs = now();
let tokenized: SubtitleData | null = null;
let output: SubtitleData = { text, tokens: null };
try {
tokenized = await deps.tokenizeSubtitle(text);
const tokenized = await deps.tokenizeSubtitle(text);
if (tokenized) {
output = tokenized;
}
} catch (error) {
deps.logDebug?.(`Subtitle tokenization failed: ${(error as Error).message}`);
}
@@ -58,12 +56,11 @@ export function createSubtitleProcessingController(
continue;
}
if (tokenized) {
deps.emitSubtitle(tokenized);
deps.logDebug?.(
`Subtitle tokenization delivered; elapsed=${now() - startedAtMs}ms, staleDrops=${staleDropCount}`,
);
}
deps.emitSubtitle(output);
lastEmittedText = text;
deps.logDebug?.(
`Subtitle tokenization delivered; elapsed=${now() - startedAtMs}ms, staleDrops=${staleDropCount}`,
);
break;
}
})()
@@ -72,7 +69,7 @@ export function createSubtitleProcessingController(
})
.finally(() => {
processing = false;
if (latestText !== lastPlainText) {
if (latestText !== lastEmittedText) {
processLatest();
}
});
@@ -83,13 +80,7 @@ export function createSubtitleProcessingController(
if (text === latestText) {
return;
}
const plainStartedAtMs = now();
latestText = text;
emitPlainSubtitle(text);
deps.logDebug?.(`Subtitle plain emit completed in ${now() - plainStartedAtMs}ms`);
if (!text.trim()) {
return;
}
processLatest();
},
};