/**
 * ffmpeg render capability probe — shared by the render backend, `czap doctor`,
 * and ffmpeg-gated integration tests. CI installs Ubuntu `ffmpeg` (includes
 * libx264); Fedora often ships `ffmpeg-free` without it.
 *
 * @module
 */
/** Result of {@link probeFfmpegRender}. */
export interface FfmpegRenderProbe {
    readonly ok: boolean;
    readonly detail: string;
    readonly hint?: string;
}
/** True when ffmpeg on PATH can encode a trivial frame via libx264 (scene render path). */
export declare function ffmpegRenderCapable(): boolean;
/**
 * Probe ffmpeg + libx264 the same way scene render uses them.
 * Fast (sub-second) — safe for doctor and test module init.
 */
export declare function probeFfmpegRender(): FfmpegRenderProbe;
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