import { Filter, FilterStreamRef } from '../../../Filter';
import { Stream } from '../../../Compiler';
/**
  * 9.1 abuffer
  * Buffer audio frames, and make them available to the filter chain.
  *
  * This source is mainly intended for a programmatic use, in particular through the interface defined in libavfilter/asrc_abuffer.h.
  *
  * It accepts the following parameters:
  */
export declare class AudioBuffer extends Filter<AudioBufferParameters> {
    outputs: FilterStreamRef<AudioBufferParameters, AudioBuffer>[];
    constructor(inputs?: Stream | Stream[], parameters?: AudioBufferParameters);
}
export interface AudioBufferParameters {
    /** The timebase which will be used for timestamps of submitted frames. It must be either a floating-point number or in numerator/denominator form. */
    time_base?: string | number;
    /** The sample rate of the incoming audio buffers. */
    sample_rate?: string | number;
    /** The sample format of the incoming audio buffers. Either a sample format name or its corresponding integer representation from the enum AVSampleFormat in libavutil/samplefmt.h */
    sample_fmt?: string | number;
    /**
      * The channel layout of the incoming audio buffers. Either a channel layout name from channel_layout_map in
      * libavutil/channel_layout.c or its corresponding integer representation from the AV_CH_LAYOUT_* macros in libavutil/channel_layout.h
      */
    channel_layout?: string | number;
    /** The number of channels of the incoming audio buffers. If both channels and channel_layout are specified, then they must be consistent. */
    channels?: string | number;
    [key: string]: string | number;
}
/**
  * 9.1 abuffer
  * Buffer audio frames, and make them available to the filter chain.
  *
  * This source is mainly intended for a programmatic use, in particular through the interface defined in libavfilter/asrc_abuffer.h.
  *
  * It accepts the following parameters:
  */
export declare function audioBuffer(inputs?: Stream | Stream[], parameters?: AudioBufferParameters): AudioBuffer;