/**
 * Packer: collapses word streams into phrases and renders takes_packed.md.
 *
 * The pack is the primary LLM surface for editing. Keep it compact — target
 * ~12KB per 40 minutes of source audio. The format matches the one used by
 * browser-use/video-use so experience across projects transfers directly.
 *
 * Phrase boundary heuristics, in order:
 *   1. Gap between consecutive words > `silenceGapSec` (default 0.45s)
 *   2. Hard sentence punctuation followed by any gap (. ! ?)
 *   3. Soft punctuation (, ; :) only when followed by > 0.30s gap
 */
import type { AudioEvent, Take, TakesPack, WordTiming } from './types.js';
export interface PackOptions {
    silenceGapSec?: number;
    maxPhraseSec?: number;
    /**
     * Minimum character length for a phrase to appear in the pack — shorter
     * fragments get merged into the next phrase.
     */
    minPhraseChars?: number;
}
/**
 * Derive a stable 5-char hex id (e.g. `C0103`) from the file path. The
 * leading `C` matches video-use's naming. Stable across runs so EDLs
 * survive re-transcription.
 */
export declare function deriveTakeId(file: string, ordinal: number): string;
export interface BuildTakeInput {
    file: string;
    words: WordTiming[];
    durationSec: number;
    transcriber: string;
    ordinal: number;
    mode: 'asr' | 'aligned';
    defaultSpeaker?: string;
    /** Pre-computed phrase-level speaker labels when diarization is available. */
    phraseSpeakers?: string[];
    audioEvents?: AudioEvent[];
    packOptions?: PackOptions;
}
export declare function buildTake(input: BuildTakeInput): Take;
/**
 * Render a TakesPack to markdown. Each take becomes a `##` heading with
 * bracketed phrase timestamps inside — the exact format video-use uses.
 */
export declare function renderTakesPack(pack: TakesPack): string;
export declare function writeTakesPack(pack: TakesPack, outPath: string): void;
/** Write `<source>.words.json` next to a take for programmatic consumers. */
export declare function writeWordsJson(take: Take, outPath: string): void;
export declare function wordsJsonPathFor(sourceFile: string, editDir: string): string;
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