Michael Freno
d7aec4e810
The visualizer's PCM cache decoded the entire episode into RAM (22050 Hz mono s16 ~160 MB/hr of audio) and held it until stop() — a 3-hour episode pinned ~500 MB and long-form content hit 2.5 GB. The 4x decode also pulled the whole remote file even when only minutes were listened to. - audio-pcm-cache: sliding window around the playback position — the decode head caps at maxAheadSec (600s) ahead of the cursor, segments older than keepBehindSec (300s) are pruned, and the tail refills as playback advances. Steady state ~40 MB regardless of episode length; a backward seek past the window restarts a segment there (the existing seek-hole mechanism, no new failure mode). - feed: cap the full-parse episode cache at 1000 episodes/feed so archive-heavy subscriptions can't pin their entire history in RAM; the visible list stays bounded by the user's cache preference and fetch-more keeps working within the ceiling. - tests: pin the new head-cap and prune contracts (8/8 in audio-pcm-cache.test.ts; full suite 193 pass). Also includes the in-flight cleanup/refactor pass (cover-art resolve helper, page and comment tightening, ESLint config removal).
27 lines
689 B
TypeScript
27 lines
689 B
TypeScript
/**
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* JSONC parser utility for handling JSON with comments
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*
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* JSONC (JSON with Comments) is a superset of JSON that allows single-line
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* and multi-line comments, which is useful for configuration files.
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*/
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function stripComments(jsonString: string): string {
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const comments = [
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{ pattern: /\/\/.*$/gm, replacement: "" },
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{ pattern: /\/\*[\s\S]*?\*\//g, replacement: "" },
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];
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let result = jsonString;
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for (const { pattern, replacement } of comments) {
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result = result.replace(pattern, replacement);
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}
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return result;
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}
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export function parseJSONC(jsonString: string): unknown {
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const stripped = stripComments(jsonString);
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return JSON.parse(stripped);
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}
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