93 lines
2.8 KiB
JavaScript
93 lines
2.8 KiB
JavaScript
import Settings from '/imports/ui/services/settings';
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import logger from '/imports/startup/client/logger';
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const AUDIO_SESSION_NUM_KEY = 'AudioSessionNumber';
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const DEFAULT_INPUT_DEVICE_ID = 'default';
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const DEFAULT_OUTPUT_DEVICE_ID = 'default';
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const INPUT_DEVICE_ID_KEY = 'audioInputDeviceId';
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const OUTPUT_DEVICE_ID_KEY = 'audioOutputDeviceId';
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const AUDIO_MICROPHONE_CONSTRAINTS = Meteor.settings.public.app.defaultSettings
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.application.microphoneConstraints;
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const getAudioSessionNumber = () => {
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let currItem = parseInt(sessionStorage.getItem(AUDIO_SESSION_NUM_KEY), 10);
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if (!currItem) {
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currItem = 0;
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}
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currItem += 1;
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sessionStorage.setItem(AUDIO_SESSION_NUM_KEY, currItem);
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return currItem;
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};
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const getCurrentAudioSessionNumber = () => sessionStorage.getItem(AUDIO_SESSION_NUM_KEY) || '0';
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const reloadAudioElement = (audioElement) => {
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if (audioElement && (audioElement.readyState > 0)) {
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audioElement.load();
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return true;
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}
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return false;
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};
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/**
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* Filter constraints set in audioDeviceConstraints, based on
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* constants supported by browser. This avoids setting a constraint
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* unsupported by browser. In currently safari version (13+), for example,
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* setting an unsupported constraint crashes the audio.
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* @param {Object} audioDeviceConstraints Constraints to be set
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* see: https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackConstraints
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* @return {Object} A new Object of the same type as
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* input, containing only the supported constraints.
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*/
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const filterSupportedConstraints = (audioDeviceConstraints) => {
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try {
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const matchConstraints = {};
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const supportedConstraints = navigator
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.mediaDevices.getSupportedConstraints() || {};
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Object.entries(audioDeviceConstraints).forEach(
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([constraintName, constraintValue]) => {
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if (supportedConstraints[constraintName]) {
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matchConstraints[constraintName] = constraintValue;
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}
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},
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);
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return matchConstraints;
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} catch (error) {
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logger.error({
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logCode: 'audio_unsupported_constraint_error',
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}, 'Unsupported audio constraints');
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return {};
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}
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};
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const getAudioConstraints = ({ deviceId = '' }) => {
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const userSettingsConstraints = Settings.application.microphoneConstraints;
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const audioDeviceConstraints = userSettingsConstraints
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|| AUDIO_MICROPHONE_CONSTRAINTS || {};
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const matchConstraints = filterSupportedConstraints(
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audioDeviceConstraints,
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);
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if (deviceId) {
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matchConstraints.deviceId = { exact: deviceId };
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}
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return matchConstraints;
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};
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export {
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DEFAULT_INPUT_DEVICE_ID,
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DEFAULT_OUTPUT_DEVICE_ID,
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INPUT_DEVICE_ID_KEY,
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OUTPUT_DEVICE_ID_KEY,
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getAudioSessionNumber,
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getCurrentAudioSessionNumber,
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reloadAudioElement,
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filterSupportedConstraints,
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getAudioConstraints,
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};
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