import { ExportProgress, RasterizeSlide } from './export-controller.svelte';
/**
 * Video (WebM) export driven by the shared `video-plan` maths: segment timing
 * comes from `planVideoSegments` (default duration + per-slide overrides +
 * fps -> frame count), the frame pacing from `fpsToFrameIntervalMs`, and the
 * recorder MIME type from `pickSupportedMimeType(WEBM_MIME_CANDIDATES)`. This
 * module owns the browser glue only: rasterise every slide first (capture
 * phase), then replay each canvas onto a recording canvas whose
 * `captureStream()` feeds a `MediaRecorder` (recording phase). Mirrors
 * React's `exportAllSlidesAsVideo`, minus the live-stage slide flipping (the
 * injected rasteriser renders off-screen instead).
 */
/** Options for the WebM video export. */
export interface ExportVideoOptions {
    /** Duration each slide is shown, in milliseconds. Default 3000. */
    slideDurationMs?: number;
    /** Per-slide duration overrides in milliseconds (index maps to slide index). */
    slideTimingsMs?: number[];
    /** Recording frame rate. Default 30. */
    fps?: number;
    /** Recorder bitrate. Default 5,000,000 (5 Mbps). */
    videoBitsPerSecond?: number;
    /** Capture-phase progress callback: `(currentSlide, totalSlides)`. */
    onProgress?: ExportProgress;
    /** Recording-phase progress callback: `(currentSlide, totalSlides)`. */
    onRecordProgress?: ExportProgress;
    /** Abort the export early; checked between slides and between frames. */
    signal?: AbortSignal;
}
/** The `MediaRecorder` surface this module drives (mockable in unit tests). */
export interface RecorderLike {
    start(): void;
    stop(): void;
    ondataavailable: ((event: {
        data: Blob;
    }) => void) | null;
    onstop: (() => void) | null;
    onerror: ((event: unknown) => void) | null;
}
/** Injected capture/recording dependencies (kept DOM-free for unit tests). */
export interface VideoCaptureDeps {
    /** Live slide count; read fresh on every call. */
    getSlideCount(): number;
    rasterizeSlide: RasterizeSlide;
    /** Canvas factory override (test seam). Defaults to `document.createElement`. */
    createCanvas?: (width: number, height: number) => HTMLCanvasElement;
    /** Recorder factory override (test seam). Defaults to `new MediaRecorder`. */
    createRecorder?: (stream: MediaStream, options: MediaRecorderOptions) => RecorderLike;
}
/**
 * Capture every slide and record the sequence as a WebM video Blob, holding
 * each slide for its planned duration. Rejects with the shared `AbortError`
 * when `signal` aborts (the recorder is stopped first).
 */
export declare function exportSlidesToWebmBlob(deps: VideoCaptureDeps, options?: ExportVideoOptions): Promise<Blob>;
//# sourceMappingURL=export-video.d.ts.map