/**
 * FFmpegLoader - Async loader for WASM module
 */
import type { MoviWasmModule } from './types';
/**
 * Point the loader at a specific `movi.wasm` URL. Only meaningful for the slim
 * build; must be called before the engine first loads (the element does this
 * from its `wasmurl` attribute on connect).
 */
export declare function setWasmUrl(url: string | null): void;
export interface LoaderOptions {
    wasmBinary?: Uint8Array;
    workerPath?: string;
}
/**
 * Discard the cached main-playback module so the next loadWasmModule() builds a
 * fresh one. Emscripten's abort() (a WASM trap / OOB in an FFmpeg call) leaves
 * the module PERMANENTLY dead: every later avformat_open_input on it fails with
 * "File is corrupted or in an unsupported format". Because the main demuxer uses
 * this cached singleton, that error then repeats for EVERY source — a new video,
 * a quality switch, anything — until a full page reload rebuilds the JS context.
 * Calling this on a fatal WASM error makes the next load recover in-page, exactly
 * as a reload would.
 */
export declare function resetWasmModule(): void;
/**
 * Load the WASM module (cached singleton for main playback)
 */
export declare function loadWasmModule(options?: LoaderOptions): Promise<MoviWasmModule>;
/**
 * Load a NEW WASM module instance (not cached).
 * Use this for preview pipeline to get completely isolated WASM memory.
 * Each call creates a separate WebAssembly.Memory - no sharing with main module.
 */
export declare function loadWasmModuleNew(options?: LoaderOptions): Promise<MoviWasmModule>;
/**
 * Get the loaded module (throws if not loaded)
 */
export declare function getWasmModule(): MoviWasmModule;
/**
 * Check if module is loaded
 */
export declare function isWasmModuleLoaded(): boolean;
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