import { AsSchematic } from "@e280/comrade";
import type { AudioEncodingConfig, StreamTargetChunk, VideoEncodingConfig } from "mediabunny";
export type DriverSchematic = AsSchematic<{
    work: {
        hello(): Promise<void>;
        decode(input: {
            source: DecoderSource;
            video: WritableStream<VideoFrame>;
            audio: WritableStream<AudioData>;
        }): Promise<void>;
        encode(input: EncoderInput & {
            bridge: WritableStream<StreamTargetChunk>;
        }): Promise<void>;
        composite(input: Composition): Promise<VideoFrame>;
    };
    host: {
        world(): Promise<void>;
    };
}>;
export interface EncoderInput {
    readables: {
        video: ReadableStream<VideoFrame>;
        audio: ReadableStream<AudioData>;
    };
    config: {
        video: VideoEncodingConfig;
        audio: AudioEncodingConfig;
    };
}
export type DecoderSource = Blob | string | URL;
export interface DecoderInput {
    source: DecoderSource;
    onFrame?: (frame: VideoFrame) => Promise<VideoFrame>;
}
export interface MuxOpts {
    config: {
        video: {
            width: number;
            height: number;
        };
        audio?: {
            codec: "opus" | "aac";
            numberOfChannels: number;
            sampleRate: number;
        };
    };
}
export type Composition = Layer | (Layer | Composition)[];
export type Transform = {
    x?: number;
    y?: number;
    scale?: number;
    opacity?: number;
    anchor?: number;
};
export type TextLayer = {
    kind: 'text';
    content: string;
    fontSize?: number;
    color?: string;
} & Transform;
export type ImageLayer = {
    kind: 'image';
    frame: VideoFrame;
} & Transform;
export type Layer = TextLayer | ImageLayer;