/**
 * Capture types -- the contract between frame rendering and video encoding.
 *
 * `FrameCapture` is the abstraction that both WebCodecs and Remotion
 * implement. VideoRenderer produces frames, FrameCapture consumes them.
 *
 * @module
 */
import type { Millis } from './brands.js';
/** Encoder-facing configuration: target resolution and frame rate. */
export interface CaptureConfig {
    readonly width: number;
    readonly height: number;
    readonly fps: number;
}
/** Single pre-rendered frame handed to a {@link FrameCapture} — frame number, timestamp, and pixel source. */
export interface CaptureFrame {
    readonly frame: number;
    readonly timestamp: number;
    readonly bitmap: ImageBitmap | OffscreenCanvas;
}
/**
 * Minimal encoder contract: `init` to open the encoder, `capture` per frame,
 * `finalize` to flush and return the encoded blob. Implemented by `@czap/web`
 * (WebCodecs) and `@czap/remotion` (Remotion capture).
 */
export interface FrameCapture {
    readonly _tag: 'FrameCapture';
    init(config: CaptureConfig): Promise<void>;
    capture(frame: CaptureFrame): Promise<void>;
    finalize(): Promise<CaptureResult>;
}
/** Encoder output returned from {@link FrameCapture}.`finalize`: the encoded blob plus codec metadata. */
export interface CaptureResult {
    readonly blob: Blob;
    readonly codec: string;
    readonly frames: number;
    readonly durationMs: Millis;
}
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