This repository has been archived by the owner on Jan 16, 2023. It is now read-only.
forked from Dash-Industry-Forum/dash.js
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main.js
1008 lines (873 loc) · 36.3 KB
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main.js
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'use strict';
var app = angular.module('DashPlayer', ['DashSourcesService', 'DashContributorsService', 'DashIFTestVectorsService', 'angular-flot']); /* jshint ignore:line */
$(document).ready(function () {
$('[data-toggle="tooltip"]').tooltip();
});
angular.module('DashSourcesService', ['ngResource']).factory('sources', function ($resource) { /* jshint ignore:line */
return $resource('app/sources.json', {}, {
query: {
method: 'GET',
isArray: false
}
});
});
angular.module('DashContributorsService', ['ngResource']).factory('contributors', function ($resource) { /* jshint ignore:line */
return $resource('app/contributors.json', {}, {
query: {
method: 'GET',
isArray: false
}
});
});
angular.module('DashIFTestVectorsService', ['ngResource']).factory('dashifTestVectors', function ($resource) { /* jshint ignore:line */
return $resource('https://testassets.dashif.org/dashjs.json', {}, {
query: {
method: 'GET',
isArray: false
}
});
});
app.controller('DashController', function ($scope, sources, contributors, dashifTestVectors) {
$scope.selectedItem = {
url: 'https://dash.akamaized.net/akamai/bbb_30fps/bbb_30fps.mpd'
};
sources.query(function (data) {
$scope.availableStreams = data.items;
// if no mss package, remove mss samples.
var MssHandler = dashjs.MssHandler; /* jshint ignore:line */
if (typeof MssHandler !== 'function') {
for (var i = $scope.availableStreams.length - 1; i >= 0; i--) {
if ($scope.availableStreams[i].name === 'Smooth Streaming') {
$scope.availableStreams.splice(i, 1);
}
}
}
// DASH Industry Forum Test Vectors
dashifTestVectors.query(function (data) {
$scope.availableStreams.splice(7, 0, {
name: 'DASH Industry Forum Test Vectors',
submenu: data.items
});
});
});
contributors.query(function (data) {
$scope.contributors = data.items;
});
$scope.chartOptions = {
legend: {
labelBoxBorderColor: '#ffffff',
placement: 'outsideGrid',
container: '#legend-wrapper',
labelFormatter: function (label, series) {
return '<div style="cursor: pointer;" id="' + series.type + '.' + series.id + '" onclick="legendLabelClickHandler(this)">' + label + '</div>';
}
},
series: {
lines: {
show: true,
lineWidth: 2,
shadowSize: 1,
steps: false,
fill: false,
},
points: {
radius: 4,
fill: true,
show: true
}
},
grid: {
clickable: false,
hoverable: false,
autoHighlight: true,
color: '#136bfb',
backgroundColor: '#ffffff'
},
axisLabels: {
position: 'left'
},
xaxis: {
tickFormatter: function tickFormatter(value) {
return $scope.player.convertToTimeCode(value);
},
tickDecimals: 0,
color: '#136bfb',
alignTicksWithAxis: 1
},
yaxis: {
min: 0,
tickLength: 0,
tickDecimals: 0,
color: '#136bfb',
position: 'right',
axisLabelPadding: 20,
},
yaxes: []
};
$scope.chartEnabled = true;
$scope.maxPointsToChart = 30;
$scope.maxChartableItems = 5;
$scope.chartCount = 0;
$scope.chartData = [];
$scope.chartState = {
audio: {
buffer: {data: [], selected: false, color: '#65080c', label: 'Audio Buffer Level'},
bitrate: {data: [], selected: false, color: '#00CCBE', label: 'Audio Bitrate (kbps)'},
index: {data: [], selected: false, color: '#ffd446', label: 'Audio Current Index'},
pendingIndex: {data: [], selected: false, color: '#FF6700', label: 'AudioPending Index'},
ratio: {data: [], selected: false, color: '#329d61', label: 'Audio Ratio'},
download: {data: [], selected: false, color: '#44c248', label: 'Audio Download Rate (Mbps)'},
latency: {data: [], selected: false, color: '#326e88', label: 'Audio Latency (ms)'},
droppedFPS: {data: [], selected: false, color: '#004E64', label: 'Audio Dropped FPS'},
liveLatency: {data: [], selected: false, color: '#65080c', label: 'Live Latency'}
},
video: {
buffer: {data: [], selected: true, color: '#00589d', label: 'Video Buffer Level'},
bitrate: {data: [], selected: true, color: '#ff7900', label: 'Video Bitrate (kbps)'},
index: {data: [], selected: false, color: '#326e88', label: 'Video Current Quality'},
pendingIndex: {data: [], selected: false, color: '#44c248', label: 'Video Pending Index'},
ratio: {data: [], selected: false, color: '#00CCBE', label: 'Video Ratio'},
download: {data: [], selected: false, color: '#FF6700', label: 'Video Download Rate (Mbps)'},
latency: {data: [], selected: false, color: '#329d61', label: 'Video Latency (ms)'},
droppedFPS: {data: [], selected: false, color: '#65080c', label: 'Video Dropped FPS'},
liveLatency: {data: [], selected: false, color: '#65080c', label: 'Live Latency'}
}
};
$scope.abrEnabled = true;
$scope.toggleCCBubble = false;
$scope.debugEnabled = false;
$scope.htmlLogging = false;
$scope.videotoggle = false;
$scope.audiotoggle = false;
$scope.optionsGutter = false;
$scope.drmData = [];
$scope.initialSettings = {
audio: null,
video: null,
text: null,
textEnabled: true,
forceTextStreaming: false
};
$scope.mediaSettingsCacheEnabled = true;
$scope.metricsTimer = null;
$scope.updateMetricsInterval = 1000;
$scope.drmKeySystems = ['com.widevine.alpha', 'com.microsoft.playready'];
$scope.drmKeySystem = '';
$scope.drmLicenseURL = '';
$scope.isDynamic = false;
// metrics
$scope.videoBitrate = 0;
$scope.videoIndex = 0;
$scope.videoPendingIndex = 0;
$scope.videoMaxIndex = 0;
$scope.videoBufferLength = 0;
$scope.videoDroppedFrames = 0;
$scope.videoLatencyCount = 0;
$scope.videoLatency = '';
$scope.videoDownloadCount = 0;
$scope.videoDownload = '';
$scope.videoRatioCount = 0;
$scope.videoRatio = '';
$scope.videoLiveLatency = 0;
$scope.audioBitrate = 0;
$scope.audioIndex = 0;
$scope.audioPendingIndex = '';
$scope.audioMaxIndex = 0;
$scope.audioBufferLength = 0;
$scope.audioDroppedFrames = 0;
$scope.audioLatencyCount = 0;
$scope.audioLatency = '';
$scope.audioDownloadCount = 0;
$scope.audioDownload = '';
$scope.audioRatioCount = 0;
$scope.audioRatio = '';
$scope.audioLiveLatency = 0;
// Starting Options
$scope.autoPlaySelected = true;
$scope.cmcdEnabled = false;
$scope.loopSelected = true;
$scope.scheduleWhilePausedSelected = true;
$scope.localStorageSelected = true;
$scope.jumpGapsSelected = true;
$scope.fastSwitchSelected = true;
$scope.videoAutoSwitchSelected = true;
$scope.videoQualities = [];
$scope.ABRStrategy = 'abrDynamic';
// Persistent license
$scope.persistentSessionId = {};
$scope.selectedKeySystem = null;
// Error management
$scope.error = '';
$scope.errorType = '';
////////////////////////////////////////
//
// Player Setup
//
////////////////////////////////////////
$scope.video = document.querySelector('.dash-video-player video');
// store a ref in window.player to provide an easy way to play with dash.js API
window.player = $scope.player = dashjs.MediaPlayer().create(); /* jshint ignore:line */
////////////////////////////////////////
//
// Configuration file
//
////////////////////////////////////////
let reqConfig = new XMLHttpRequest();
reqConfig.onload = function () {
if (reqConfig.status === 200) {
let config = JSON.parse(reqConfig.responseText);
if ($scope.player) {
$scope.player.updateSettings(config);
}
} else {
// Set default initial configuration
var initialConfig = {
'debug': {
'logLevel': dashjs.Debug.LOG_LEVEL_INFO
},
'streaming': {
'fastSwitchEnabled': $scope.fastSwitchSelected,
'jumpGaps': true,
'abr': {
'autoSwitchBitrate': {
'video': $scope.videoAutoSwitchSelected
}
}
}
}
$scope.player.updateSettings(initialConfig);
}
};
reqConfig.open("GET", "dashjs_config.json", true);
reqConfig.setRequestHeader("Content-type", "application/json");
reqConfig.send();
$scope.player.on(dashjs.MediaPlayer.events.ERROR, function (e) { /* jshint ignore:line */
if (!e.event) {
$scope.$apply(function () {
$scope.error = e.error.message;
$scope.errorType = 'Dash.js :' + e.error.code;
switch (e.error.code) {
case dashjs.MediaPlayer.errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE:
case dashjs.MediaPlayer.errors.MANIFEST_LOADER_LOADING_FAILURE_ERROR_CODE:
case dashjs.MediaPlayer.errors.XLINK_LOADER_LOADING_FAILURE_ERROR_CODE:
case dashjs.MediaPlayer.errors.SEGMENTS_UPDATE_FAILED_ERROR_CODE:
case dashjs.MediaPlayer.errors.SEGMENTS_UNAVAILABLE_ERROR_CODE:
case dashjs.MediaPlayer.errors.SEGMENT_BASE_LOADER_ERROR_CODE:
case dashjs.MediaPlayer.errors.TIME_SYNC_FAILED_ERROR_CODE:
case dashjs.MediaPlayer.errors.FRAGMENT_LOADER_LOADING_FAILURE_ERROR_CODE:
case dashjs.MediaPlayer.errors.FRAGMENT_LOADER_NULL_REQUEST_ERROR_CODE:
case dashjs.MediaPlayer.errors.URL_RESOLUTION_FAILED_GENERIC_ERROR_CODE:
case dashjs.MediaPlayer.errors.APPEND_ERROR_CODE:
case dashjs.MediaPlayer.errors.REMOVE_ERROR_CODE:
case dashjs.MediaPlayer.errors.DATA_UPDATE_FAILED_ERROR_CODE:
case dashjs.MediaPlayer.errors.CAPABILITY_MEDIASOURCE_ERROR_CODE:
case dashjs.MediaPlayer.errors.CAPABILITY_MEDIAKEYS_ERROR_CODE:
case dashjs.MediaPlayer.errors.DOWNLOAD_ERROR_ID_SIDX:
case dashjs.MediaPlayer.errors.MANIFEST_ERROR_ID_CODEC:
case dashjs.MediaPlayer.errors.MANIFEST_ERROR_ID_PARSE:
case dashjs.MediaPlayer.errors.MANIFEST_ERROR_ID_NOSTREAMS:
case dashjs.MediaPlayer.errors.TIMED_TEXT_ERROR_ID_PARSE:
// mss errors
case dashjs.MediaPlayer.errors.MSS_NO_TFRF_CODE:
// protection errors
case dashjs.MediaPlayer.errors.MEDIA_KEYERR_CODE:
case dashjs.MediaPlayer.errors.MEDIA_KEYERR_UNKNOWN_CODE:
case dashjs.MediaPlayer.errors.MEDIA_KEYERR_CLIENT_CODE:
case dashjs.MediaPlayer.errors.MEDIA_KEYERR_SERVICE_CODE:
case dashjs.MediaPlayer.errors.MEDIA_KEYERR_OUTPUT_CODE:
case dashjs.MediaPlayer.errors.MEDIA_KEYERR_HARDWARECHANGE_CODE:
case dashjs.MediaPlayer.errors.MEDIA_KEYERR_DOMAIN_CODE:
break;
}
});
$("#errorModal").modal('show');
}
}, $scope);
$scope.player.initialize($scope.video, null, $scope.autoPlaySelected);
// Add HTML-rendered TTML subtitles except for Firefox < v49 (issue #1164)
if (doesTimeMarchesOn()) {
$scope.player.attachTTMLRenderingDiv($('#video-caption')[0]);
}
// get buffer default value
var currentConfig = $scope.player.getSettings();
$scope.defaultLiveDelay = currentConfig.streaming.liveDelay;
$scope.defaultStableBufferDelay = currentConfig.streaming.stableBufferTime;
$scope.defaultBufferTimeAtTopQuality = currentConfig.streaming.bufferTimeAtTopQuality;
$scope.defaultBufferTimeAtTopQualityLongForm = currentConfig.streaming.bufferTimeAtTopQualityLongForm;
$scope.lowLatencyModeSelected = currentConfig.streaming.lowLatencyEnabled;
var initVideoTrackSwitchMode = $scope.player.getTrackSwitchModeFor('video');
var initAudioTrackSwitchMode = $scope.player.getTrackSwitchModeFor('audio');
//get default track switch mode
if (initVideoTrackSwitchMode === 'alwaysReplace') {
document.getElementById('always-replace-video').checked = true;
} else {
document.getElementById('never-replace-video').checked = true;
}
if (initAudioTrackSwitchMode === 'alwaysReplace') {
document.getElementById('always-replace-audio').checked = true;
} else {
document.getElementById('never-replace-audio').checked = true;
}
$scope.controlbar = new ControlBar($scope.player); /* jshint ignore:line */
$scope.controlbar.initialize();
$scope.controlbar.disable();
$scope.version = $scope.player.getVersion();
$scope.player.on(dashjs.MediaPlayer.events.MANIFEST_LOADED, function (e) { /* jshint ignore:line */
$scope.isDynamic = e.data.type === 'dynamic';
}, $scope);
$scope.player.on(dashjs.MediaPlayer.events.QUALITY_CHANGE_REQUESTED, function (e) { /* jshint ignore:line */
$scope[e.mediaType + 'Index'] = e.oldQuality + 1;
$scope[e.mediaType + 'PendingIndex'] = e.newQuality + 1;
$scope.plotPoint('pendingIndex', e.mediaType, e.newQuality + 1, getTimeForPlot());
$scope.safeApply();
}, $scope);
$scope.player.on(dashjs.MediaPlayer.events.QUALITY_CHANGE_RENDERED, function (e) { /* jshint ignore:line */
$scope[e.mediaType + 'Index'] = e.newQuality + 1;
$scope.plotPoint('index', e.mediaType, e.newQuality + 1, getTimeForPlot());
$scope.safeApply();
}, $scope);
$scope.player.on(dashjs.MediaPlayer.events.PERIOD_SWITCH_COMPLETED, function (e) { /* jshint ignore:line */
$scope.streamInfo = e.toStreamInfo;
}, $scope);
$scope.player.on(dashjs.MediaPlayer.events.STREAM_INITIALIZED, function (e) { /* jshint ignore:line */
stopMetricsInterval();
$scope.videoQualities = $scope.player.getBitrateInfoListFor('video');
$scope.chartCount = 0;
$scope.metricsTimer = setInterval(function () {
updateMetrics('video');
updateMetrics('audio');
$scope.chartCount++;
}, $scope.updateMetricsInterval);
}, $scope);
$scope.player.on(dashjs.MediaPlayer.events.PLAYBACK_ENDED, function (e) { /* jshint ignore:line */
if ($('#loop-cb').is(':checked') &&
$scope.player.getActiveStream().getStreamInfo().isLast) {
$scope.doLoad();
}
}, $scope);
$scope.player.on(dashjs.MediaPlayer.events.KEY_SYSTEM_SELECTED, function (e) { /* jshint ignore:line */
if (e.data) {
$scope.selectedKeySystem = e.data.keySystem.systemString;
}
}, $scope);
$scope.player.on(dashjs.MediaPlayer.events.KEY_SESSION_CREATED, function (e) { /* jshint ignore:line */
if (e.data) {
var session = e.data;
if (session.getSessionType() === 'persistent-license') {
$scope.persistentSessionId[$scope.selectedItem.url] = session.getSessionID();
}
}
}, $scope);
////////////////////////////////////////
//
// General Player Methods
//
////////////////////////////////////////
$scope.onChartEnableButtonClick = function () {
$scope.chartEnabled = !$scope.chartEnabled;
$('#chart-wrapper').fadeTo(500, $scope.chartEnabled ? 1 : 0.3);
};
$scope.toggleAutoPlay = function () {
$scope.player.setAutoPlay($scope.autoPlaySelected);
};
$scope.changeABRStrategy = function (strategy) {
$scope.player.updateSettings({
'streaming': {
'abr': {
'ABRStrategy': strategy
}
}
});
};
$scope.toggleUseCustomABRRules = function () {
$scope.player.updateSettings({
'streaming': {
'abr': {
'useDefaultABRRules': !$scope.customABRRulesSelected
}
}
});
if ($scope.customABRRulesSelected) {
$scope.player.addABRCustomRule('qualitySwitchRules', 'DownloadRatioRule', DownloadRatioRule); /* jshint ignore:line */
$scope.player.addABRCustomRule('qualitySwitchRules', 'ThroughputRule', CustomThroughputRule); /* jshint ignore:line */
} else {
$scope.player.removeABRCustomRule('DownloadRatioRule');
$scope.player.removeABRCustomRule('ThroughputRule');
}
};
$scope.toggleFastSwitch = function () {
$scope.player.updateSettings({
'streaming': {
'fastSwitchEnabled': $scope.fastSwitchSelected
}
});
};
$scope.toggleVideoAutoSwitch = function () {
$scope.player.updateSettings({
'streaming': {
'abr': {
'autoSwitchBitrate': {
'video': $scope.videoAutoSwitchSelected
}
}
}
});
};
$scope.toggleScheduleWhilePaused = function () {
$scope.player.updateSettings({
'streaming': {
'scheduleWhilePaused': $scope.scheduleWhilePausedSelected
}
});
};
$scope.toggleLocalStorage = function () {
$scope.player.updateSettings({
'streaming': {
'lastBitrateCachingInfo': {
'enabled': $scope.localStorageSelected
},
'lastMediaSettingsCachingInfo': {
'enabled': $scope.localStorageSelected
}
}
});
};
$scope.toggleJumpGaps = function () {
$scope.player.updateSettings({
'streaming': {
'jumpGaps': $scope.jumpGapsSelected
}
});
};
$scope.togglelowLatencyMode = function () {
$scope.player.updateSettings({
'streaming': {
'lowLatencyEnabled': $scope.lowLatencyModeSelected
}
});
};
$scope.setStream = function (item) {
$scope.selectedItem = JSON.parse(JSON.stringify(item));
};
$scope.toggleOptionsGutter = function (bool) {
$scope.optionsGutter = bool;
};
$scope.toggleCmcdEnabled = function () {
$scope.player.updateSettings({
'streaming': {
'cmcd': {
'enabled': $scope.cmcdEnabled
}
}
});
};
$scope.selectVideoQuality = function (quality) {
$scope.player.setQualityFor('video', quality);
};
$scope.doLoad = function () {
$scope.initSession();
var protData = {};
if ($scope.selectedItem.hasOwnProperty('protData')) {
protData = $scope.selectedItem.protData;
} else if ($scope.drmLicenseURL !== '' && $scope.drmKeySystem !== '') {
protData[$scope.drmKeySystem] = {
serverURL: $scope.drmLicenseURL
};
} else {
protData = null;
}
// Check if persistent license session ID is stored for current stream
var sessionId = $scope.persistentSessionId[$scope.selectedItem.url];
if (sessionId) {
if (!protData) {
protData = {};
}
if (!protData[$scope.selectedKeySystem]) {
protData[$scope.selectedKeySystem] = {};
}
protData[$scope.selectedKeySystem].sessionId = sessionId;
}
var config = {
'streaming': {
'liveDelay': $scope.defaultLiveDelay,
'stableBufferTime': $scope.defaultStableBufferDelay,
'bufferTimeAtTopQuality': $scope.defaultBufferTimeAtTopQuality,
'bufferTimeAtTopQualityLongForm': $scope.defaultBufferTimeAtTopQualityLongForm,
'lowLatencyEnabled': $scope.lowLatencyModeSelected,
abr: {},
cmcd: {}
}
};
if ($scope.selectedItem.hasOwnProperty('bufferConfig')) {
var selectedConfig = $scope.selectedItem.bufferConfig;
if (selectedConfig.liveDelay) {
config.streaming.liveDelay = selectedConfig.liveDelay;
}
if (selectedConfig.stableBufferTime) {
config.streaming.stableBufferTime = selectedConfig.stableBufferTime;
}
if (selectedConfig.bufferTimeAtTopQuality) {
config.streaming.bufferTimeAtTopQuality = selectedConfig.bufferTimeAtTopQuality;
}
if (selectedConfig.bufferTimeAtTopQualityLongForm) {
config.streaming.bufferTimeAtTopQualityLongForm = selectedConfig.bufferTimeAtTopQualityLongForm;
}
if (selectedConfig.lowLatencyMode !== undefined) {
config.streaming.lowLatencyEnabled = selectedConfig.lowLatencyMode;
}
}
const initBitrate = parseInt($scope.initialVideoBitrate);
if (!isNaN(initBitrate)) {
config.streaming.abr.initialBitrate = {'video': initBitrate};
}
const minBitrate = parseInt($scope.minVideoBitrate);
if (!isNaN(minBitrate)) {
config.streaming.abr.minBitrate = {'video': minBitrate};
}
const maxBitrate = parseInt($scope.maxVideoBitrate);
if (!isNaN(maxBitrate)) {
config.streaming.abr.maxBitrate = {'video': maxBitrate};
}
config.streaming.cmcd.sid = $scope.cmcdSessionId ? $scope.cmcdSessionId : null;
config.streaming.cmcd.cid = $scope.cmcdContentId ? $scope.cmcdContentId : null;
config.streaming.cmcd.did = $scope.cmcdDeviceId ? $scope.cmcdDeviceId : null;
$scope.player.updateSettings(config);
$scope.controlbar.reset();
$scope.player.setProtectionData(protData);
$scope.player.attachSource($scope.selectedItem.url);
if ($scope.initialSettings.audio) {
$scope.player.setInitialMediaSettingsFor('audio', {
lang: $scope.initialSettings.audio
});
}
if ($scope.initialSettings.video) {
$scope.player.setInitialMediaSettingsFor('video', {
role: $scope.initialSettings.video
});
}
if ($scope.initialSettings.text) {
if ($scope.initialSettings.textRole) {
$scope.player.setInitialMediaSettingsFor('fragmentedText', {
role: $scope.initialSettings.textRole,
lang: $scope.initialSettings.text
});
} else {
$scope.player.setInitialMediaSettingsFor('fragmentedText', {
lang: $scope.initialSettings.text
});
}
}
$scope.player.setTextDefaultEnabled($scope.initialSettings.textEnabled);
$scope.player.enableForcedTextStreaming($scope.initialSettings.forceTextStreaming);
$scope.controlbar.enable();
};
$scope.doStop = function () {
$scope.player.attachSource(null);
$scope.controlbar.reset();
stopMetricsInterval();
};
$scope.changeTrackSwitchMode = function (mode, type) {
$scope.player.setTrackSwitchModeFor(type, mode);
};
$scope.setLogLevel = function () {
var level = $("input[name='log-level']:checked").val();
switch (level) {
case 'none':
$scope.player.updateSettings({'debug': {'logLevel': dashjs.Debug.LOG_LEVEL_NONE}});
break;
case 'fatal':
$scope.player.updateSettings({'debug': {'logLevel': dashjs.Debug.LOG_LEVEL_FATAL}});
break;
case 'error':
$scope.player.updateSettings({'debug': {'logLevel': dashjs.Debug.LOG_LEVEL_ERROR}});
break;
case 'warning':
$scope.player.updateSettings({'debug': {'logLevel': dashjs.Debug.LOG_LEVEL_WARNING}});
break;
case 'info':
$scope.player.updateSettings({'debug': {'logLevel': dashjs.Debug.LOG_LEVEL_INFO}});
break;
default:
$scope.player.updateSettings({'debug': {'logLevel': dashjs.Debug.LOG_LEVEL_DEBUG}});
}
};
$scope.hasLogo = function (item) {
return (item.hasOwnProperty('logo') && item.logo);
};
$scope.getChartButtonLabel = function () {
return $scope.chartEnabled ? 'Disable' : 'Enable';
};
$scope.getOptionsButtonLabel = function () {
return $scope.optionsGutter ? 'Hide Options' : 'Show Options';
};
$scope.setDrmKeySystem = function (item) {
$scope.drmKeySystem = item;
};
// from: https://gist.github.com/siongui/4969449
$scope.safeApply = function (fn) {
var phase = this.$root.$$phase;
if (phase == '$apply' || phase == '$digest')
this.$eval(fn);
else
this.$apply(fn);
};
////////////////////////////////////////
//
// Metrics
//
////////////////////////////////////////
$scope.initSession = function () {
$scope.clearChartData();
$scope.sessionStartTime = new Date().getTime() / 1000;
};
function calculateHTTPMetrics(type, requests) {
var latency = {},
download = {},
ratio = {};
var requestWindow = requests.slice(-20).filter(function (req) {
return req.responsecode >= 200 && req.responsecode < 300 && req.type === 'MediaSegment' && req._stream === type && !!req._mediaduration;
}).slice(-4);
if (requestWindow.length > 0) {
var latencyTimes = requestWindow.map(function (req) {
return Math.abs(req.tresponse.getTime() - req.trequest.getTime()) / 1000;
});
latency[type] = {
average: latencyTimes.reduce(function (l, r) {
return l + r;
}) / latencyTimes.length,
high: latencyTimes.reduce(function (l, r) {
return l < r ? r : l;
}),
low: latencyTimes.reduce(function (l, r) {
return l < r ? l : r;
}),
count: latencyTimes.length
};
var downloadTimes = requestWindow.map(function (req) {
return Math.abs(req._tfinish.getTime() - req.tresponse.getTime()) / 1000;
});
download[type] = {
average: downloadTimes.reduce(function (l, r) {
return l + r;
}) / downloadTimes.length,
high: downloadTimes.reduce(function (l, r) {
return l < r ? r : l;
}),
low: downloadTimes.reduce(function (l, r) {
return l < r ? l : r;
}),
count: downloadTimes.length
};
var durationTimes = requestWindow.map(function (req) {
return req._mediaduration;
});
ratio[type] = {
average: (durationTimes.reduce(function (l, r) {
return l + r;
}) / downloadTimes.length) / download[type].average,
high: durationTimes.reduce(function (l, r) {
return l < r ? r : l;
}) / download[type].low,
low: durationTimes.reduce(function (l, r) {
return l < r ? l : r;
}) / download[type].high,
count: durationTimes.length
};
return {
latency: latency,
download: download,
ratio: ratio
};
}
return null;
}
$scope.clearChartData = function () {
for (var key in $scope.chartState) {
for (var i in $scope.chartState[key]) {
$scope.chartState[key][i].data.length = 0;
}
}
};
$scope.plotPoint = function (name, type, value, time) {
if ($scope.chartEnabled) {
var specificChart = $scope.chartState[type];
if (specificChart) {
var data = specificChart[name].data;
data.push([time, value]);
if (data.length > $scope.maxPointsToChart) {
data.splice(0, 1);
}
}
}
};
$scope.enableChartByName = function (id, type) {
// enable stat item
if ($scope.chartState[type][id].selected) {
// block stat item if too many already.
if ($scope.chartData.length === $scope.maxChartableItems) {
alert('You have selected too many items to chart simultaneously. Max allowd is ' + $scope.maxChartableItems + '. Please unselect another item first, then reselected ' + $scope.chartState[type][id].label);
$scope.chartState[type][id].selected = false;
return;
}
var data = {
id: id,
data: $scope.chartState[type][id].data,
label: $scope.chartState[type][id].label,
color: $scope.chartState[type][id].color,
yaxis: $scope.chartData.length + 1,
type: type
};
$scope.chartData.push(data);
$scope.chartOptions.yaxes.push({
axisLabel: data.label
});
} else { //remove stat item from charts
for (var i = 0; i < $scope.chartData.length; i++) {
if ($scope.chartData[i].id === id && $scope.chartData[i].type === type) {
$scope.chartData.splice(i, 1);
$scope.chartOptions.yaxes.splice(i, 1);
}
if ($scope.chartData.length > i) {
$scope.chartData[i].yaxis = i + 1;
}
}
}
$scope.chartOptions.legend.noColumns = Math.min($scope.chartData.length, 5);
};
function getTimeForPlot() {
var now = new Date().getTime() / 1000;
return Math.max(now - $scope.sessionStartTime, 0);
}
function updateMetrics(type) {
var dashMetrics = $scope.player.getDashMetrics();
var dashAdapter = $scope.player.getDashAdapter();
if (dashMetrics && $scope.streamInfo) {
var periodIdx = $scope.streamInfo.index;
var maxIndex = dashAdapter.getMaxIndexForBufferType(type, periodIdx);
var repSwitch = dashMetrics.getCurrentRepresentationSwitch(type, true);
var bufferLevel = dashMetrics.getCurrentBufferLevel(type, true);
var index = $scope.player.getQualityFor(type);
var bitrate = repSwitch ? Math.round(dashAdapter.getBandwidthForRepresentation(repSwitch.to, periodIdx) / 1000) : NaN;
var droppedFramesMetrics = dashMetrics.getCurrentDroppedFrames();
var droppedFPS = droppedFramesMetrics ? droppedFramesMetrics.droppedFrames : 0;
var liveLatency = 0;
if ($scope.isDynamic) {
liveLatency = $scope.player.getCurrentLiveLatency();
}
$scope[type + 'BufferLength'] = bufferLevel;
$scope[type + 'MaxIndex'] = maxIndex;
$scope[type + 'Bitrate'] = bitrate;
$scope[type + 'DroppedFrames'] = droppedFPS;
$scope[type + 'LiveLatency'] = liveLatency;
var httpMetrics = calculateHTTPMetrics(type, dashMetrics.getHttpRequests(type));
if (httpMetrics) {
$scope[type + 'Download'] = httpMetrics.download[type].low.toFixed(2) + ' | ' + httpMetrics.download[type].average.toFixed(2) + ' | ' + httpMetrics.download[type].high.toFixed(2);
$scope[type + 'Latency'] = httpMetrics.latency[type].low.toFixed(2) + ' | ' + httpMetrics.latency[type].average.toFixed(2) + ' | ' + httpMetrics.latency[type].high.toFixed(2);
$scope[type + 'Ratio'] = httpMetrics.ratio[type].low.toFixed(2) + ' | ' + httpMetrics.ratio[type].average.toFixed(2) + ' | ' + httpMetrics.ratio[type].high.toFixed(2);
}
if ($scope.chartCount % 2 === 0) {
var time = getTimeForPlot();
$scope.plotPoint('buffer', type, bufferLevel, time);
$scope.plotPoint('index', type, index, time);
$scope.plotPoint('bitrate', type, bitrate, time);
$scope.plotPoint('droppedFPS', type, droppedFPS, time);
$scope.plotPoint('liveLatency', type, liveLatency, time);
if (httpMetrics) {
$scope.plotPoint('download', type, httpMetrics.download[type].average.toFixed(2), time);
$scope.plotPoint('latency', type, httpMetrics.latency[type].average.toFixed(2), time);
$scope.plotPoint('ratio', type, httpMetrics.ratio[type].average.toFixed(2), time);
}
$scope.safeApply();
}
}
}
function stopMetricsInterval() {
if ($scope.metricsTimer) {
clearInterval($scope.metricsTimer);
$scope.metricsTimer = null;
}
}
$scope.initChartingByMediaType = function (type) {
var arr = $scope.chartState[type];
for (var key in arr) {
var obj = arr[key];
if (obj.selected) {
$scope.enableChartByName(key, type);
}
}
};
////////////////////////////////////////
//
// Init
//
////////////////////////////////////////
function doesTimeMarchesOn() {
var version;
var REQUIRED_VERSION = 49.0;
if (typeof navigator !== 'undefined') {
if (!navigator.userAgent.match(/Firefox/)) {
return true;
}
version = parseFloat(navigator.userAgent.match(/rv:([0-9.]+)/)[1]);
if (!isNaN(version) && version >= REQUIRED_VERSION) {
return true;
}
}
}
(function init() {
$scope.initChartingByMediaType('video');
$scope.initChartingByMediaType('audio');
function getUrlVars() {
var vars = {};
window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function (m, key, value) {
vars[key] = value;
});
return vars;
}
var vars = getUrlVars();
var item = {};
if (vars && vars.hasOwnProperty('url')) {
item.url = vars.url;
}
if (vars && vars.hasOwnProperty('mpd')) {
item.url = vars.mpd;
}
if (vars && vars.hasOwnProperty('source')) {
item.url = vars.source;
}
if (vars && vars.hasOwnProperty('stream')) {
try {
item = JSON.parse(atob(vars.stream));
} catch (e) {
}
}
if (vars && vars.hasOwnProperty('targetLatency')) {
let targetLatency = parseInt(vars.targetLatency, 10);
if (!isNaN(targetLatency)) {
item.bufferConfig = {
lowLatencyMode: true,
liveDelay: targetLatency / 1000
};
$scope.lowLatencyModeSelected = true;
}
}
if (item.url) {
var startPlayback = false;
$scope.selectedItem = item;
if (vars.hasOwnProperty('autoplay')) {
startPlayback = (vars.autoplay === 'true');
}
if (startPlayback) {
$scope.doLoad();
}
}
})();
});