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flowplayer.dashjs.js
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/*jslint browser: true, for: true */
/*global dashjs, flowplayer, MediaPlayer, window */
/*!
DASH engine plugin for Flowplayer HTML5
Copyright (c) 2015-2017, Flowplayer Drive Oy
Released under the MIT License:
http://www.opensource.org/licenses/mit-license.php
Includes dash.js
Copyright (c) 2015, Dash Industry Forum. All rights reserved.
https://github.com/Dash-Industry-Forum/dash.js/blob/master/LICENSE.md
Requires Flowplayer HTML5 version 6.x
$GIT_DESC$
*/
(function () {
"use strict";
var extension = function (dashjs, flowplayer) {
var engineName = "dash",
mse = window.MediaSource || window.WebKitMediaSource,
UA = navigator.userAgent,
common = flowplayer.common,
extend = flowplayer.extend,
version = flowplayer.version,
coreV6 = version.indexOf("6.") === 0,
dashconf,
dashCanPlay = function (sourceType, dashType, dashCodecs) {
return sourceType.toLowerCase() === "application/dash+xml" &&
mse.isTypeSupported(dashType + ';codecs="' + dashCodecs + '"') &&
// Android MSE advertises he-aac, but fails
(dashCodecs.indexOf("mp4a.40.5") < 0 || UA.indexOf("Android") < 0);
},
engineImpl = function dashjsEngine(player, root) {
var bean = flowplayer.bean,
support = flowplayer.support,
brwsr = support.browser,
desktopSafari = brwsr.safari && support.dataload, // exclude IEMobile
mediaPlayer,
videoTag,
handleError = function (errorCode, src, url) {
var errobj = {code: errorCode};
if (errorCode > 2) {
errobj.video = extend(player.video, {
src: src,
url: url || src
});
}
return errobj;
},
lastSelectedQuality = -1,
initQualitySelection = function (dashQualitiesConf, initialVideoQuality, data) {
// multiperiod not supported
var vsets = [],
qualities,
audioBandwidth = 0,
getLevel = function (q) {
return isNaN(Number(q))
? q.level
: q;
},
setInitialVideoQuality = function (initialVideoQuality, vsets, qsel) {
initialVideoQuality = Math.min(initialVideoQuality, vsets.length - 1);
mediaPlayer.setAutoSwitchQualityFor("video", false);
mediaPlayer.setInitialBitrateFor("video", vsets[initialVideoQuality].bandwidth / 1000);
if (qsel) {
player.video.quality = -1;
}
player.one("progress." + engineName, function () {
mediaPlayer.setAutoSwitchQualityFor("video", true);
});
},
qselConf = dashQualitiesConf && support.inlineVideo &&
data.Period_asArray.length === 1 &&
(!desktopSafari || (desktopSafari && dashconf.qualitiesForSafari));
if (!qselConf && initialVideoQuality < 0) {
return;
}
data.Period_asArray[0].AdaptationSet_asArray.forEach(function (aset) {
var representations = aset.Representation_asArray,
mimeType = aset.mimeType || representations[0].mimeType;
if (mimeType.indexOf("video/") === 0) {
vsets = vsets.concat(representations.filter(function (repr) {
var codecs = (repr.mimeType || mimeType) + ";codecs=" + repr.codecs;
return mse.isTypeSupported(codecs);
}));
} else if (mimeType.indexOf("audio/") === 0 && !audioBandwidth) {
// too simple: audio tracks may have different bitrates
audioBandwidth = representations[0].bandwidth;
}
});
if (vsets.length < 2) {
return;
}
vsets.sort(function (a, b) {
return a.bandwidth - b.bandwidth;
});
if (!qselConf) {
setInitialVideoQuality(initialVideoQuality, vsets);
return;
}
switch (typeof dashQualitiesConf) {
case "object":
qualities = dashQualitiesConf.map(getLevel);
break;
case "string":
qualities = dashQualitiesConf.split(/\s*,\s*/).map(Number);
break;
default:
qualities = vsets.map(function (_repr, i) {
return i;
});
qualities.unshift(-1);
}
qualities = qualities.filter(function (q) {
return q < vsets.length && q > -2;
});
if (qualities.length < 2) {
return;
}
player.video.qualities = qualities.map(function (idx) {
var level = vsets[idx],
q = typeof dashQualitiesConf === "object"
? dashQualitiesConf.filter(function (q) {
return getLevel(q) === idx;
})[0]
: idx,
label = q.label || (idx < 0
? "Auto"
: Math.min(level.width, level.height) + "p " +
"(" + Math.round((level.bandwidth + audioBandwidth) / 1000) + "k)");
return {value: idx, label: label};
});
if (lastSelectedQuality < 0 && initialVideoQuality > -1) {
setInitialVideoQuality(initialVideoQuality, vsets, true);
} else if (qualities.indexOf(lastSelectedQuality) > -1) {
mediaPlayer.setAutoSwitchQualityFor("video", lastSelectedQuality < 0);
if (lastSelectedQuality > -1) {
mediaPlayer.setInitialBitrateFor("video", vsets[lastSelectedQuality].bandwidth / 1000);
}
player.video.quality = lastSelectedQuality;
} else {
player.video.quality = -1;
}
},
keySystem,
bc,
has_bg,
engine = {
engineName: engineName,
pick: function (sources) {
var source = sources.filter(function (s) {
var dashType = s.dashType || dashconf.type,
dashCodecs = s.dashCodecs || dashconf.codecs;
return dashCanPlay(s.type, dashType, dashCodecs);
})[0];
if (typeof source.src === 'string') {
source.src = common.createAbsoluteUrl(source.src);
}
return source;
},
load: function (video) {
var conf = player.conf,
dashUpdatedConf = extend(dashconf, conf.dash, video.dash),
dashQualitiesConf = video.dashQualities || conf.dashQualities,
EVENTS = {
ended: "finish",
loadeddata: "ready",
pause: "pause",
play: "resume",
progress: "buffer",
ratechange: "speed",
seeked: "seek",
timeupdate: "progress",
volumechange: "volume",
error: "error"
},
DASHEVENTS = dashjs.MediaPlayer.events,
protection = video.dash && video.dash.protection,
autoplay = !!video.autoplay || !!conf.autoplay || !!conf.splash,
posterClass = "is-poster",
livestartpos = 0;
if (video.dashQualities === false || coreV6) {
dashQualitiesConf = false;
} else if (dashQualitiesConf === undefined) {
dashQualitiesConf = true;
}
if (!mediaPlayer) {
videoTag = common.findDirect("video", root)[0]
|| common.find(".fp-player > video", root)[0];
if (videoTag) {
// destroy video tag
// otherwise <video autoplay> continues to play
common.find("source", videoTag).forEach(function (source) {
source.removeAttribute("src");
});
videoTag.removeAttribute("src");
videoTag.load();
common.removeNode(videoTag);
}
// dash.js enforces preload="auto" and
// autoplay depending on initialization
// so setting the attributes here will have no effect
videoTag = common.createElement("video", {
"class": "fp-engine " + engineName + "-engine"
});
if (support.mutedAutoplay && !conf.splash && autoplay) {
videoTag.muted = true;
}
Object.keys(EVENTS).forEach(function (key) {
var flow = EVENTS[key],
type = key + "." + engineName,
arg;
bean.on(videoTag, type, function (e) {
if (conf.debug && flow.indexOf("progress") < 0) {
console.log(type, "->", flow, e.originalEvent);
}
var vct = videoTag.currentTime,
ct = (mediaPlayer.time && mediaPlayer.time()) || vct,
dur = mediaPlayer.duration(),
buffered = videoTag.buffered,
buffends = [],
i,
updatedVideo = player.video,
src = updatedVideo.src,
errorCode;
switch (flow) {
case "ready":
arg = extend(updatedVideo, {
duration: dur,
seekable: dur,
width: videoTag.videoWidth,
height: videoTag.videoHeight,
url: src
});
break;
case "resume":
if (coreV6 && player.poster) {
common.removeClass(root, posterClass);
player.poster = false;
}
break;
case "seek":
arg = ct;
break;
case "progress":
if (player.live && !player.dvr) {
if (!livestartpos && vct) {
livestartpos = vct;
}
arg = vct - livestartpos;
} else {
arg = ct;
}
break;
case "speed":
// dash.js often triggers playback rate changes
// when adapting bit rate
// except when in debug mode, only
// trigger explicit events via speed method
if (!dashUpdatedConf.debug) {
e.preventDefault();
return;
}
arg = videoTag.playbackRate;
break;
case "volume":
arg = videoTag.volume;
break;
case "buffer":
for (i = 0; i < buffered.length; i += 1) {
buffends.push(buffered.end(i));
}
arg = buffends.filter(function (b) {
return b >= ct;
}).sort()[0];
updatedVideo.buffer = arg;
break;
case "error":
errorCode = videoTag.error && videoTag.error.code;
arg = handleError(errorCode, src);
break;
}
player.trigger(flow, [player, arg]);
});
});
player.on("error." + engineName, function () {
if (mediaPlayer) {
player.engine.unload();
}
});
if (!coreV6) {
player.on("quality." + engineName, function (_e, _api, q) {
mediaPlayer.setAutoSwitchQualityFor("video", q < 0);
if (q > -1) {
mediaPlayer.setQualityFor("video", q);
}
lastSelectedQuality = q;
});
} else if (conf.poster) {
var posterHack = function (e) {
if (e.type === "stop" || !autoplay) {
setTimeout(function () {
if (!player.poster) {
common.addClass(root, posterClass);
player.poster = true;
}
});
}
};
player.one("ready." + engineName, posterHack).on("stop." + engineName, posterHack);
}
common.prepend(common.find(".fp-player", root)[0], videoTag);
} else {
mediaPlayer.reset();
}
mediaPlayer = dashjs.MediaPlayer().create();
player.engine[engineName] = mediaPlayer;
if (protection) {
mediaPlayer.setProtectionData(protection);
mediaPlayer.on(dashjs.Protection.events.KEY_SYSTEM_SELECTED, function (e) {
keySystem = e.data.keySystem.systemString;
});
}
// caching can cause failures in playlists
// for the moment disable entirely
mediaPlayer.enableLastBitrateCaching(false);
// for seeking in paused state
mediaPlayer.setScheduleWhilePaused(true);
mediaPlayer.setFastSwitchEnabled(UA.indexOf("Trident/7") < 0);
mediaPlayer.getDebug().setLogToBrowserConsole(dashUpdatedConf.debug);
// live
if (typeof dashUpdatedConf.liveDelay === "number") {
mediaPlayer.setLiveDelay(dashUpdatedConf.liveDelay);
}
if (typeof dashUpdatedConf.liveDelayFragmentCount === "number") {
mediaPlayer.setLiveDelayFragmentCount(dashUpdatedConf.liveDelayFragmentCount);
}
mediaPlayer.useSuggestedPresentationDelay(dashUpdatedConf.useSuggestedPresentationDelay);
if (dashUpdatedConf.xhrWithCredentials && dashUpdatedConf.xhrWithCredentials.length) {
dashUpdatedConf.xhrWithCredentials.forEach(function (requestType) {
mediaPlayer.setXHRWithCredentialsForType(requestType, true);
});
}
Object.keys(DASHEVENTS).forEach(function (key) {
var etype = DASHEVENTS[key],
fpEventType = engineName + etype.charAt(0).toUpperCase() + etype.slice(1),
listeners = dashUpdatedConf.listeners,
expose = listeners && listeners.indexOf(fpEventType) > -1;
mediaPlayer.on(etype, function (e) {
var src = player.video.src,
videoDashConf = player.video.dash,
loadingClass = "is-loading",
errors = player.conf.errors,
protectionError = "None of the protection key systems supported. Try a different browser.",
fperr,
errobj;
switch (key) {
case "MANIFEST_LOADED":
if (brwsr.chrome && videoDashConf && videoDashConf.protectionLevel) {
mediaPlayer.getProtectionController().setRobustnessLevel(videoDashConf.protectionLevel);
}
initQualitySelection(dashQualitiesConf,
dashUpdatedConf.initialVideoQuality, e.data);
break;
case "CAN_PLAY":
if (desktopSafari && autoplay) {
// hack to avoid "heaving" in Safari
// at least in splash setups and playlist transitions
common.addClass(root, loadingClass);
bean.one(videoTag, "timeupdate." + engineName, function () {
setTimeout(function () {
common.removeClass(root, loadingClass);
});
});
}
break;
case "BUFFER_LEVEL_STATE_CHANGED":
common.toggleClass(root, "is-seeking", e.state === "bufferStalled");
break;
case "ERROR":
switch (e.error) {
case "capability":
if (e.event === "encryptedmedia" && protection && !keySystem) {
errors.push(protectionError);
fperr = errors.length - 1;
} else {
fperr = 5;
}
break;
case "download":
fperr = 4;
break;
case "manifestError":
fperr = 5;
break;
case "mediasource":
switch (e.event) {
case "MEDIA_ERR_DECODE":
fperr = 3;
break;
case "MEDIA_ERR_SRC_NOT_SUPPORTED":
fperr = 5;
break;
case "MEDIA_ERR_NETWORK":
fperr = 2;
break;
case "MEDIA_ERR_ABORTED":
fperr = 1;
break;
}
break;
default:
fperr = 5;
}
errobj = handleError(fperr, src, e.event.url);
player.trigger('error', [player, errobj]);
break;
}
if (expose) {
player.trigger(fpEventType, [player, e]);
}
});
});
keySystem = null;
// update video object before ready
player.video = video;
mediaPlayer.initialize(videoTag, video.src, autoplay);
if (!support.firstframe && support.dataload && !brwsr.mozilla &&
autoplay && videoTag.paused) {
videoTag.load();
}
},
resume: function () {
mediaPlayer.play();
},
pause: function () {
mediaPlayer.pause();
},
seek: function (time) {
mediaPlayer.seek(time);
},
volume: function (level) {
if (videoTag) {
videoTag.volume = level;
}
},
speed: function (val) {
videoTag.playbackRate = val;
// see ratechange/speed event
player.trigger('speed', [player, val]);
},
unload: function () {
if (mediaPlayer) {
var listeners = "." + engineName;
mediaPlayer.reset();
mediaPlayer = 0;
player.off(listeners);
bean.off(root, listeners);
bean.off(videoTag, listeners);
common.removeNode(videoTag);
videoTag = 0;
}
}
};
// pre 6.0.4: no boolean api.conf.poster and no poster with autoplay
if (/^6\.0\.[0-3]$/.test(version) &&
!player.conf.splash && !player.conf.poster && !player.conf.autoplay) {
bc = common.css(root, 'backgroundColor');
// spaces in rgba arg mandatory for recognition
has_bg = common.css(root, 'backgroundImage') !== "none" ||
(bc && bc !== "rgba(0, 0, 0, 0)" && bc !== "transparent");
if (has_bg) {
player.conf.poster = true;
}
}
return engine;
};
if (mse && typeof mse.isTypeSupported === "function" && version.indexOf("5.") !== 0) {
// only load engine if it can be used
engineImpl.engineName = engineName; // must be exposed
engineImpl.canPlay = function (type, conf) {
/*
WARNING: MediaSource.isTypeSupported very inconsistent!
e.g. Safari ignores codecs entirely, even bogus, like codecs="XYZ"
example avc3 main level 3.1 + aac_he: avc3.4d401f; mp4a.40.5
example avc1 high level 4.1 + aac_lc: avc1.640029; mp4a.40.2
default: avc1 baseline level 3.0 + aac_lc
*/
// inject dash conf at earliest opportunity
dashconf = extend({
type: "video/mp4",
codecs: "avc1.42c01e,mp4a.40.2",
initialVideoQuality: -1,
qualitiesForSafari: true
}, conf[engineName], conf.clip[engineName]);
return dashCanPlay(type, dashconf.type, dashconf.codecs);
};
// put on top of engine stack
// so mpegedash is tested before html5
flowplayer.engines.unshift(engineImpl);
}
};
if (typeof module === 'object' && module.exports) {
module.exports = extension.bind(undefined, require('dashjs'));
} else if (window.dashjs && window.flowplayer) {
extension(window.dashjs, window.flowplayer);
}
}());