/*!
 * Copyright (c) 2026-present, Vanilagy and contributors
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */
import { AudioSample, AudioSampleResource } from 'mediabunny';
import * as NodeAv from 'node-av';
/**
 * A custom `AudioSampleResource` backed by NodeAV's
 * [`Frame`](https://seydx.github.io/node-av/api/lib/classes/Frame.html), which in turn is backed by FFmpeg's
 * [`AVFrame`](https://ffmpeg.org/doxygen/2.7/structAVFrame.html). You can use this resource to create `AudioSample`
 * instances that are directly backed by FFmpeg's `AVFrame` without data having to be copied.
 *
 * When passed, the `Frame` is now owned by resource, meaning it takes care of closing the frame later. If you want to
 * keep a copy for your own use, clone the frame first.
 *
 * @group \@mediabunny/server
 * @public
 */
export declare class AvFrameAudioSampleResource extends AudioSampleResource {
    /**
     * The NodeAV [`Frame`](https://seydx.github.io/node-av/api/lib/classes/Frame.html) instance backing this resource.
     * Access throws if the resource has already been closed.
     */
    get frame(): NodeAv.Frame;
    constructor(frame: NodeAv.Frame);
    /** WebCodecs sample format mapped from the underlying AvFrame. */
    getFormat(): AudioSampleFormat;
    /** Sample rate in Hz. */
    getSampleRate(): number;
    /** Number of audio channels. */
    getNumberOfChannels(): number;
    /** Number of audio frames (samples per channel) in this resource. */
    getNumberOfFrames(): number;
    /** Presentation timestamp in seconds. */
    getTimestamp(): number;
    /** Release the underlying AvFrame; after this call the resource is unusable. */
    close(): void;
    /** Return the raw bytes for the given plane (planar layouts have one plane per channel). */
    getDataPlane(planeIndex: number): Uint8Array;
}
export declare const copyAudioSampleToAvFrame: (sample: AudioSample, frame: NodeAv.Frame) => void;
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