/**
 * YUV Frame Renderer — converts decoded YUV frames to displayable video.
 *
 * Uses VideoFrame + MediaStreamTrackGenerator when available (Chrome 94+),
 * falls back to WebGL canvas rendering.
 */
import type { HEVCFrame } from "./types.js";
/**
 * Renderer that converts YUV frames to a <video>-compatible MediaStream
 * or renders directly to a canvas.
 */
export declare class FrameRenderer {
    private _generator;
    private _writer;
    private _canvas;
    private _gl;
    private _program;
    private _texY;
    private _texCb;
    private _texCr;
    /**
     * Check if MediaStreamTrackGenerator is available (Chrome 94+).
     * When available, frames can be piped to a <video> element.
     */
    static get supportsMediaStream(): boolean;
    /**
     * Get a MediaStream that can be assigned to a <video>.srcObject.
     * Only available when supportsMediaStream is true.
     */
    getMediaStream(): MediaStream | null;
    /**
     * Render a decoded YUV frame.
     *
     * If MediaStreamTrackGenerator is available, creates a VideoFrame and writes it.
     * Otherwise, renders to the provided canvas via WebGL.
     */
    renderFrame(frame: HEVCFrame, timestamp: number): Promise<void>;
    /**
     * Initialize WebGL canvas fallback.
     * Call this if MediaStreamTrackGenerator is not supported.
     */
    initCanvas(canvas: HTMLCanvasElement | OffscreenCanvas): void;
    private _renderToVideoFrame;
    private _initWebGL;
    private _renderToWebGL;
    /** Release all resources */
    destroy(): void;
}
//# sourceMappingURL=renderer.d.ts.map