type ProjectOrFileOptions = {
    projectSlug?: string;
    filePath?: string;
    root?: string;
};
export interface VideoVariantResult {
    projectSlug?: string;
    variant: 'vertical' | 'square' | 'loop';
    sourcePath: string;
    outputPath: string;
    durationSeconds?: number;
    sizeBytes?: number;
    videoCodec?: string;
    width?: number;
    height?: number;
    frameRate?: string;
    audioPresent: boolean;
    audioCodec?: string;
}
export interface VideoThumbnailResult {
    projectSlug?: string;
    sourcePath: string;
    outputPath: string;
    timestampSeconds: number;
    text?: string;
    overlayApplied: boolean;
}
export interface VideoSubtitleBurnResult {
    projectSlug?: string;
    sourcePath: string;
    subtitlePath: string;
    outputPath: string;
    burnedIn: boolean;
    durationSeconds?: number;
    sizeBytes?: number;
    videoCodec?: string;
    width?: number;
    height?: number;
    frameRate?: string;
    audioPresent: boolean;
    audioCodec?: string;
}
export declare function ffmpegSupportsFilter(filterName: string): Promise<boolean>;
export declare function makeVideoVariant(options: ProjectOrFileOptions & {
    variant: 'vertical' | 'square' | 'loop';
    outputPath?: string;
}): Promise<VideoVariantResult>;
export declare function createVideoThumbnail(options: ProjectOrFileOptions & {
    outputPath?: string;
    text?: string;
}): Promise<VideoThumbnailResult>;
export declare function burnVideoSubtitles(options: ProjectOrFileOptions & {
    subtitlePath: string;
    outputPath?: string;
}): Promise<VideoSubtitleBurnResult>;
export {};
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