import { VisemeData } from '../types';

/**
 * Helpers that convert viseme/mouth-shape timing from common speech engines
 * into Avatoon's `visemeJson` format. Each returns `{ visemes: [...] }` with
 * `time` in **seconds** and a `viseme` code understood by `phonemeToViseme`.
 */
export interface AzureVisemeEvent {
    /** Azure viseme id (0–21). */
    visemeId: number;
    /** Audio offset in 100-nanosecond ticks (as provided by the Speech SDK). */
    audioOffset: number;
}
/** Convert Azure Speech SDK viseme events into `visemeJson`. */
export declare function fromAzureVisemes(events: AzureVisemeEvent[]): VisemeData;
export interface PollySpeechMark {
    type?: string;
    /** Time offset in milliseconds. */
    time: number;
    /** Polly viseme value. */
    value: string;
}
/** Convert AWS Polly speech marks into `visemeJson` (non-viseme marks ignored). */
export declare function fromPollySpeechMarks(marks: PollySpeechMark[]): VisemeData;
export interface RhubarbMouthCue {
    /** Start time in seconds. */
    start: number;
    end: number;
    /** Rhubarb mouth shape (A–H, X). */
    value: string;
}
export interface RhubarbOutput {
    mouthCues: RhubarbMouthCue[];
}
/** Convert Rhubarb Lip Sync output (or its `mouthCues`) into `visemeJson`. */
export declare function fromRhubarb(input: RhubarbOutput | RhubarbMouthCue[]): VisemeData;