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<title>Code coverage report for src/core/util/Media.js</title>
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<a href="../../../index.html">all files</a> / <a href="index.html">src/core/util/</a> Media.js
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/*eslint max-params: [2, 5], max-len: [0, 120] */
import * as Log from './Log';
/**
* Video resolution presets
* @access private
* @type {{UHD: {w: number, h: number, min: string}, FHD: {w: number, h: number, min: string, max: string}, HD: {w: number, h: number, min: string, max: string}, SVGA: {w: number, h: number, min: string, max: string}, SD: {w: number, h: number, min: string, max: string}, VGA: {w: number, h: number, max: string}}}
*/
const presets = {
UHD: {w: 3840, h: 2160, min: 'HD'},
FHD: {w: 1920, h: 1080, min: 'HD', max: 'UHD'},
HD: {w: 1280, h: 720, min: 'SD', max: 'FHD'},
SVGA: {w: 800, h: 600, min: 'VGA', max: 'HD'},
SD: {w: 720, h: 576, min: 'VGA', max: 'HD'},
VGA: {w: 640, h: 480, max: 'SVGA'}
};
/**
* Assign deviceId to constraint
* @param constraint
* @param deviceId
* @returns {*}
*/
const _assignDevice = (constraint, deviceId) => {
<span class="missing-if-branch" title="if path not taken" >I</span>if(constraint && deviceId) {
<span class="cstat-no" title="statement not covered" > return Object.assign(</span>
/^((user)|(environment))$/i.test(deviceId) ? {facingMode: deviceId} : {deviceId},
constraint === true ? {} : constraint);
}
return constraint;
};
/**
* Helpers for MediaDevices and MediaStreamConstraints.
*/
export default class Media {
/**
* facingMode values to use with constraints
* @returns {{USER: string, ENVIRONMENT: string}}
*/
static get facingMode() {
return {
USER: 'user',
ENVIRONMENT: 'environment'
};
}
/**
* Helpers to create a MediaStreamConstraints configuration object
* @param {boolean|MediaTrackConstraints|string} [videoConstraints='HD'] a boolean, a video constraints object or a preset id (UHD, FHD, HD, SVGA, SD, VGA)
* @param {boolean|MediaTrackConstraints} [audioConstraints=true] a boolean or an audio constraints object
* @param {string} [type=ideal] type of constraints for video when using a preset (exact,min,max or ideal)
* @param {string|object} [videoDeviceId] video input device id or facingMode
* @param {string|object} [audioDeviceId] audio input device id
* @returns {object}
* @throws {Error}
*
* @example <caption>HD AudioVideo with default devices</caption>
* let myConstraints = Reach.media.constraints();
* console.log(myConstraints);
*
* @example <caption>Full HD Video without audio using default devices</caption>
* let myConstraints = Reach.media.constraints('FHD', false, 'exact');
* console.log(myConstraints);
*/
static constraints (videoConstraints = 'HD', audioConstraints = true, type = 'ideal', videoDeviceId, audioDeviceId) {
let video = videoConstraints;
<span class="missing-if-branch" title="else path not taken" >E</span>if (typeof videoConstraints === 'string'){
<span class="missing-if-branch" title="else path not taken" >E</span>if(presets[videoConstraints.toUpperCase()]) {
const
preset = presets[videoConstraints.toUpperCase()],
dimConstraint = (dim) => {
<span class="missing-if-branch" title="if path not taken" >I</span>if(/^(min|max|exact)$/.test(type)) {
const r = <span class="cstat-no" title="statement not covered" >{};</span>
<span class="cstat-no" title="statement not covered" > r[type] = preset[dim];</span>
<span class="cstat-no" title="statement not covered" > return r;</span>
}
return {
min: preset.min ? presets[preset.min][dim] : <span class="branch-1 cbranch-no" title="branch not covered" >preset[dim],</span>
ideal: preset[dim],
max: preset.max ? presets[preset.max][dim] : <span class="branch-1 cbranch-no" title="branch not covered" >preset[dim]</span>
};
};
video = {width: dimConstraint('w'), height: dimConstraint('h')};
} else {
<span class="cstat-no" title="statement not covered" > throw new Error('Unknown Video Resolution preset (UHD, FHD, HD, SVGA, SD, VGA)');</span>
}
}
video = _assignDevice(video, videoDeviceId);
const audio = _assignDevice(audioConstraints, audioDeviceId);
Log.d('Media#constraints', {video, audio});
return {video, audio};
}
_correctBug(node) <span class="fstat-no" title="function not covered" >{</span>
//set border radius to correct the bug on chrome 61
<span class="cstat-no" title="statement not covered" > node.style.borderRadius = '1px';</span>
}
/**
* Init stream display node depending on stream type
* @param {MediaStream} mediaStream The MediaStream to display
* @param {Element} container Container node for streams
* @param {Element} previous Previous node for the stream
* @param {number} [volume=.7] the default volume
* @return {Element}
*/
static attachStream(mediaStream, container, previous, volume = .7) <span class="fstat-no" title="function not covered" >{</span>
let tagName = <span class="cstat-no" title="statement not covered" >'';</span>
<span class="cstat-no" title="statement not covered" > if(mediaStream.getVideoTracks().length > 0) {</span>
<span class="cstat-no" title="statement not covered" > tagName = 'video';</span>
} else <span class="cstat-no" title="statement not covered" >if(mediaStream.getAudioTracks().length > 0) {</span>
<span class="cstat-no" title="statement not covered" > tagName = 'audio';</span>
}
<span class="cstat-no" title="statement not covered" > Log.d('Media#attachStream', mediaStream, tagName);</span>
<span class="cstat-no" title="statement not covered" > if (tagName.length > 0) {</span>
let _node = <span class="cstat-no" title="statement not covered" >previous;</span>
<span class="cstat-no" title="statement not covered" > if (!_node || _node.tagName.toLowerCase() !== tagName) {</span>
<span class="cstat-no" title="statement not covered" > _node = document.createElement(tagName);</span>
<span class="cstat-no" title="statement not covered" > _node.autoplay = true;</span>
// set these attributes in order to launch the video on IOS
<span class="cstat-no" title="statement not covered" > _node.setAttribute('playsinline',true);</span>
<span class="cstat-no" title="statement not covered" > _node.setAttribute('muted',true);</span>
<span class="cstat-no" title="statement not covered" > this._correctBug(_node);</span>
}
<span class="cstat-no" title="statement not covered" > if (container) {</span>
<span class="cstat-no" title="statement not covered" > if (previous && previous !== _node) {</span>
<span class="cstat-no" title="statement not covered" > container.replaceChild(_node, previous);</span>
} else <span class="cstat-no" title="statement not covered" >if (!previous) {</span>
<span class="cstat-no" title="statement not covered" > container.appendChild(_node);</span>
}
}
<span class="cstat-no" title="statement not covered" > _node.srcObject = mediaStream;</span>
// disabled doesn't seem to be needed
// _node.disabled = false;
<span class="cstat-no" title="statement not covered" > _node.volume = volume;</span>
<span class="cstat-no" title="statement not covered" > return _node;</span>
}
<span class="cstat-no" title="statement not covered" > return previous;</span>
}
/**
* List available input devices
* @return {Promise<{audioinput: MediaDeviceInfo[], videoinput: MediaDeviceInfo[]}>}
*
* @example
* Reach.media.devices().then(devices => {
* // Video cameras
* console.log(devices.videoinput);
* // Audio mics
* console.log(devices.audioinput);
* });
*/
static devices () {
return navigator.mediaDevices.enumerateDevices()
.then(devices => {
const r = {};
devices.forEach(device => {
if (!r[device.kind]) {
r[device.kind] = [];
}
r[device.kind].push(device);
});
Log.d('Media#devices', r);
return r;
})
.catch(Log.r('Media#devices'));
}
}
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