/**
 * Native Safari FairPlay Streaming wiring. Safari plays HLS natively; FairPlay
 * is set up manually via EME: fetch the certificate, on `encrypted` create a
 * key session, on the SPC `message` POST it to the (Vizor-proxied) FairPlay
 * license URL with the x-api-key header, then update the session with the CKC.
 *
 * The pure helpers are unit-tested; the EME calls are runtime-only (no EME in
 * jsdom) and are documented for manual Safari verification. The exact EZDRM
 * FairPlay SPC/CKC encoding is pinned against the vendor guide at live
 * integration (isolated in buildSpcBody/parseCkc below).
 */
import type { DeliveryDrm } from '@vizor-vr/shared';
export declare function skdToContentId(skd: string): string;
export declare function toBase64(bytes: Uint8Array): string;
export declare function fromBase64(b64: string): Uint8Array;
export interface FairPlayDeps {
    fetch: typeof fetch;
    requestMediaKeySystemAccess: typeof navigator.requestMediaKeySystemAccess;
}
export declare function setupFairPlay(video: HTMLVideoElement, drm: DeliveryDrm, apiKey: string | undefined, deps?: FairPlayDeps): Promise<void>;
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