import { Filter, FilterStreamRef } from '../../../Filter';
import { Stream } from '../../../Compiler';
/**
  * 14.5 mptestsrc
  * Generate various test patterns, as generated by the MPlayer test filter.
  *
  * The size of the generated video is fixed, and is 256x256. This source is useful in particular for testing encoding features.
  *
  * This source accepts the following options:
  */
export declare class VideoMpTestSrc extends Filter<VideoMpTestSrcParameters> {
    outputs: FilterStreamRef<VideoMpTestSrcParameters, VideoMpTestSrc>[];
    constructor(inputs?: Stream | Stream[], parameters?: VideoMpTestSrcParameters);
}
export interface VideoMpTestSrcParameters {
    /**
      * Specify the frame rate of the sourced video, as the number of frames generated per second. It has to be a string in the format
      * frame_rate_num/frame_rate_den, an integer number, a floating point number or a valid video frame rate abbreviation. The default value is "25".
      * @aliases r
      */
    rate?: string | number;
    /**
      * Specify the frame rate of the sourced video, as the number of frames generated per second. It has to be a string in the format
      * frame_rate_num/frame_rate_den, an integer number, a floating point number or a valid video frame rate abbreviation. The default value is "25".
      * @aliasof rate
      */
    r?: string | number;
    /**
      * Set the duration of the sourced video. See
      * (ffmpeg-utils)the Time duration section in the ffmpeg-utils(1) manual for the accepted syntax.
      * If not specified, or the expressed duration is negative, the video is supposed to be generated forever.
      * @aliases d
      */
    duration?: string | number;
    /**
      * Set the duration of the sourced video. See
      * (ffmpeg-utils)the Time duration section in the ffmpeg-utils(1) manual for the accepted syntax.
      * If not specified, or the expressed duration is negative, the video is supposed to be generated forever.
      * @aliasof duration
      */
    d?: string | number;
    /**
      * Set the number or the name of the test to perform. Supported tests are:
      * dc_luma
      * dc_chroma
      * freq_luma
      * freq_chroma
      * amp_luma
      * amp_chroma
      * cbp
      * mv
      * ring1
      * ring2
      * all
      * max_frames, m
      * Set the maximum number of frames generated for each test, default value is 30.
      * Default value is "all", which will cycle through the list of all tests.
      * @aliases t
      */
    test?: string | number;
    /**
      * Set the number or the name of the test to perform. Supported tests are:
      * dc_luma
      * dc_chroma
      * freq_luma
      * freq_chroma
      * amp_luma
      * amp_chroma
      * cbp
      * mv
      * ring1
      * ring2
      * all
      * max_frames, m
      * Set the maximum number of frames generated for each test, default value is 30.
      * Default value is "all", which will cycle through the list of all tests.
      * @aliasof test
      */
    t?: string | number;
    [key: string]: string | number;
}
/**
  * 14.5 mptestsrc
  * Generate various test patterns, as generated by the MPlayer test filter.
  *
  * The size of the generated video is fixed, and is 256x256. This source is useful in particular for testing encoding features.
  *
  * This source accepts the following options:
  */
export declare function videoMpTestSrc(inputs?: Stream | Stream[], parameters?: VideoMpTestSrcParameters): VideoMpTestSrc;