/**
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* @license
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* Copyright 2019 Google LLC. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* =============================================================================
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*/
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/// <amd-module name="@tensorflow/tfjs-data/dist/util/test_utils" />
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import { Constraints } from '@tensorflow/tfjs-core/dist/jasmine_util';
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export declare function setupFakeVideoStream(): void;
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export declare function replaceHTMLVideoElementSource(videoElement: HTMLVideoElement): Promise<void>;
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export declare const MEDIA_ENVS: Constraints;
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export declare function describeAllEnvs(testName: string, tests: () => void): void;
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export declare function describeBrowserEnvs(testName: string, tests: () => void): void;
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export declare function describeNodeEnvs(testName: string, tests: () => void): void;
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/**
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* Testing Utilities for browser audio stream.
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*/
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export declare function setupFakeAudioStream(): void;
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export declare class FakeAudioContext {
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readonly sampleRate = 44100;
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static createInstance(): FakeAudioContext;
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createMediaStreamSource(): FakeMediaStreamAudioSourceNode;
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createAnalyser(): FakeAnalyser;
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close(): void;
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}
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export declare class FakeAudioMediaStream {
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constructor();
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getTracks(): Array<{}>;
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}
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declare class FakeMediaStreamAudioSourceNode {
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constructor();
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connect(node: {}): void;
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}
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declare class FakeAnalyser {
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fftSize: number;
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smoothingTimeConstant: number;
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private x;
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constructor();
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getFloatFrequencyData(data: Float32Array): void;
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getFloatTimeDomainData(data: Float32Array): void;
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disconnect(): void;
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}
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export {};
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