68 lines
2.2 KiB
JavaScript
68 lines
2.2 KiB
JavaScript
/* @flow */
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import { toState } from '../redux';
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import { VIDEO_MUTISM_AUTHORITY } from './constants';
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/**
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* Determines whether video is currently muted by the audio-only authority.
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*
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* @param {Function|Object} stateful - The redux store, state, or
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* {@code getState} function.
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* @returns {boolean}
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*/
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export function isVideoMutedByAudioOnly(stateful: Function | Object) {
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return (
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_isVideoMutedByAuthority(stateful, VIDEO_MUTISM_AUTHORITY.AUDIO_ONLY));
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}
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/**
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* Determines whether video is currently muted by a specific
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* {@code VIDEO_MUTISM_AUTHORITY}.
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*
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* @param {Function|Object} stateful - The redux store, state, or
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* {@code getState} function.
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* @param {number} videoMutismAuthority - The {@code VIDEO_MUTISM_AUTHORITY}
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* which is to be checked whether it has muted video.
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* @returns {boolean} If video is currently muted by the specified
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* {@code videoMutismAuthority}, then {@code true}; otherwise, {@code false}.
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*/
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function _isVideoMutedByAuthority(
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stateful: Function | Object,
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videoMutismAuthority: number) {
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const { muted } = toState(stateful)['features/base/media'].video;
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// eslint-disable-next-line no-bitwise
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return Boolean(muted & videoMutismAuthority);
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}
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/**
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* Determines whether video is currently muted by the user authority.
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*
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* @param {Function|Object} stateful - The redux store, state, or
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* {@code getState} function.
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* @returns {boolean}
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*/
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export function isVideoMutedByUser(stateful: Function | Object) {
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return _isVideoMutedByAuthority(stateful, VIDEO_MUTISM_AUTHORITY.USER);
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}
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/**
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* Determines whether a specific videoTrack should be rendered.
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*
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* @param {Track} videoTrack - The video track which is to be rendered.
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* @param {boolean} waitForVideoStarted - True if the specified videoTrack
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* should be rendered only after its associated video has started;
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* otherwise, false.
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* @returns {boolean} True if the specified videoTrack should be renderd;
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* otherwise, false.
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*/
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export function shouldRenderVideoTrack(
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videoTrack: { muted: boolean, videoStarted: boolean },
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waitForVideoStarted: boolean) {
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return (
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videoTrack
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&& !videoTrack.muted
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&& (!waitForVideoStarted || videoTrack.videoStarted));
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}
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