export declare const DEFAULT_MUSIC_GAIN_DB = -6;
export declare const DEFAULT_MUSIC_START_SEC = 0;
export declare const DEFAULT_MUSIC_FADE_SEC = 2;
/** Watermark defaults, all as fractions of the video so they hold at any resolution. */
export declare const DEFAULT_LOGO_OPACITY = 0.7;
export declare const DEFAULT_LOGO_HEIGHT_FRAC = 0.055;
export declare const DEFAULT_LOGO_MARGIN_FRAC = 0.025;
export type LogoCorner = 'br' | 'bl' | 'tr' | 'tl';
export interface RenderOptions {
    /** Resolved relative to the recording dir. Default "edl.json". */
    edlPath?: string;
    /** Resolved relative to the recording dir. Default "<recordingName>-trailer.mp4". */
    outPath?: string;
    tailPadFrames?: number;
    /** Draw the recorded HUD over every clip that doesn't opt out via "ui": false. */
    ui?: boolean;
    /**
     * Where the HUD replay harness lives — `/hud-replay.html` on the running `bitmagic dev` sidecar.
     * Without it a `ui` render warns and draws no overlays rather than guessing a port.
     */
    harnessUrl?: string;
    /** Ceiling on HUD keyframes per second of output time. 0 disables. Default 30. */
    uiKeyframesPerSec?: number;
    /** Music bed under the reconstructed SFX. Resolved relative to the cwd. */
    musicPath?: string;
    /** dB applied to the music. Default -6. */
    musicGainDb?: number;
    /** Where in the track to come in. Default 0. */
    musicStartSec?: number;
    /** Fade-out over the last N seconds of the video. Default 2. */
    musicFadeSec?: number;
    /** dB applied to the reconstructed-SFX bus. Default 0. */
    sfxGainDb?: number;
    /** Watermark image (PNG with alpha). Resolved relative to the cwd. */
    logoPath?: string;
    /** 0..1. Default 0.7. */
    logoOpacity?: number;
    /** Logo height as a fraction of video height. Default 0.055. */
    logoHeightFrac?: number;
    /** Margin from the edges as a fraction of video width. Default 0.025. */
    logoMarginFrac?: number;
    /** Which corner. Default bottom-right. */
    logoCorner?: LogoCorner;
    /** TTF used for burned-in titles. Defaults to the bundled NotoSans-Bold. */
    titleFontPath?: string;
    /**
     * Replace the output file instead of writing a new revision. Off by default:
     * re-rendering to the same name loses the previous cut, and players like
     * QuickTime keep showing the stale file until they are closed and reopened.
     */
    overwrite?: boolean;
}
export interface RenderResult {
    /** The file actually written — the requested name, or its next free `-rN` revision. */
    outPath: string;
    durationSec: number;
    clipCount: number;
}
export declare function runRender(recordingDir: string, options?: RenderOptions): Promise<RenderResult>;