import type { VideoExportSettings, VideoMedia } from "./video-production-state.ts";
export interface VideoRenderGeometry {
    canvasWidth: number;
    canvasHeight: number;
    width: number;
    height: number;
    captureScale: number;
}
/** The largest adopted HD source owns automatic output size; preview keeps the editing canvas. */
export declare function resolveVideoRenderGeometry(canvas: {
    width: number;
    height: number;
}, settings: VideoExportSettings, sources: readonly VideoMedia[]): VideoRenderGeometry;
/** Native rendering handles timing/audio/effects. Final encoding scales the whole high-resolution frame, never individual elements or source videos. */
export declare function renderVideoComposition(input: {
    snapshotFolder: string;
    compositionPath: string;
    outputPath: string;
    settings: VideoExportSettings;
    geometry: VideoRenderGeometry;
    signal: AbortSignal;
    renderNative(args: string[], captureScale: number): Promise<void>;
}): Promise<void>;