/**
 * Hybrid Rendering Pipeline - CLI Side
 *
 * Handles local audio generation with timing metadata extraction,
 * then optionally sends to cloud for enhancement while preserving sync.
 */
import { type TtsOptions } from "./tts.js";
/** Enhanced timing metadata for hybrid rendering */
export interface AudioTimingMetadata {
    version: "1.0";
    totalDuration: number;
    segments: AudioSegment[];
    silenceRegions: SilenceRegion[];
}
export interface AudioSegment {
    id: string;
    startTime: number;
    endTime: number;
    text: string;
    type: "speech" | "silence";
    naturalBoundaries: {
        sentenceStart: boolean;
        sentenceEnd: boolean;
        pauseAfter: number;
    };
    audioPath?: string;
    duration?: number;
}
export interface SilenceRegion {
    startTime: number;
    endTime: number;
    type: "natural_pause" | "scene_transition" | "breathing";
}
/** Segment speech text at natural boundaries */
export declare function segmentSpeech(text: string): Array<{
    text: string;
    boundaryInfo: any;
}>;
/** Generate local audio with enhanced timing metadata */
export declare function generateLocalRender(transcriptPath: string, timingPath: string, projectDir: string, options?: TtsOptions): AudioTimingMetadata;
/** Prepare upload payload for cloud enhancement */
export interface CloudEnhancementPayload {
    projectId: string;
    metadata: AudioTimingMetadata;
    preferences: {
        voice?: string;
        speed?: number;
        enhancementLevel?: "standard" | "premium";
    };
}
export declare function prepareCloudEnhancement(projectId: string, metadata: AudioTimingMetadata, options?: TtsOptions): CloudEnhancementPayload;
//# sourceMappingURL=hybrid-rendering.d.ts.map