[英]Azure Media Player Silverlight fallback not working
我在項目中使用了azure媒體播放器,它將在asp.net頁面中播放多個自適應比特率流視頻,最好的部分是,它在html5和Flash中表現出色,但在Silverlight中會卡在微調器圖像上倒退。
以下是我使用的代碼。
我也嘗試獲取錯誤,但是它沒有擊中為錯誤添加的事件偵聽器代碼,但是在使用flash和html5的情況下,play和pause事件運行正常,但是silverlight后備功能根本無法正常工作。
<link href="https://amp.azure.net/libs/amp/1.3.0/skins/amp-default/azuremediaplayer.min.css" rel="stylesheet">
<script src="https://amp.azure.net/libs/amp/1.3.0/azuremediaplayer.min.js"></script>
<div class="marginBlock">
<h3>
<asp:Label ID="lblTitle" runat="server"><%=Title.ToString()%></asp:Label>
</h3>
<video id="<%=mediaPlayerID %>" class="azuremediaplayer amp-default-skin amp-big-play-centered">
<p class="amp-no-js">
To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML 5 video.
</p>
</video>
</div>
<p>
<asp:Label ID="lblDescription" runat="server"><%=Description.ToString()%>
</asp:Label>
</p>
<script>
$(document).ready(function () {
var playOptions = {
"nativeControlsForTouch": false,
techOrder: ['azureHtml5JS', 'flashSS', 'silverlightSS', 'html5'],
autoplay: false,
controls: true,
width: '100%',
height: '400',
logo: { enabled: false },
poster: "<%=ImageSelector%>"
}
var azurePlayer = amp('<%=mediaPlayerID%>', playOptions);
azurePlayer.src([{
src: "<%=VideoURL%>",
type: 'application/vnd.ms-sstr+xml'
}]);
azurePlayer.addEventListener("error", function () {
var errorDetails = azurePlayer.error();
var code = errorDetails.code;
var message = errorDetails.message;
alert(errorDetails + ' ' + code + " " + message);
if (azurePlayer.error().code & amp.errorCode.abortedErrStart) {
console.log("abortedErrStart");
}
else if (azurePlayer.error().code & amp.errorCode.networkErrStart) {
// MEDIA_ERR_NETWORK errors
console.log("networkErrStart");
}
else if (azurePlayer.error().code & amp.errorCode.decodeErrStart) {
// MEDIA_ERR_DECODE errors
console.log("decodeErrStart");
}
else if (azurePlayer.error().code & amp.errorCode.srcErrStart) {
// MEDIA_ERR_SRC_NOT_SUPPORTED errors
console.log("srcErrStart");
}
else if (azurePlayer.error().code & amp.errorCode.encryptErrStart) {
// MEDIA_ERR_ENCRYPTED errors
console.log("encryptErrStart");
}
else if (azurePlayer.error().code & amp.errorCode.srcPlayerMismatchStart) {
// SRC_PLAYER_MISMATCH errors
console.log("srcPlayerMismatchStart");
}
else {
// unknown errors
console.log("unknown");
}
});
azurePlayer.addEventListener('play', function () {
console.log('play');
});
azurePlayer.addEventListener('pause', function () {
console.log('pause');
});
});
更新通知:我收到IE <11的以下錯誤。
另外,我禁用了Firefox中的Flash,並從techOrder中刪除了Silverlight,然后它應該命中錯誤事件偵聽器,沒有命中。
這對於我處理錯誤分析也很重要。 播放和暫停事件偵聽器工作正常。
2015年8月28日更新:修復了JS錯誤,這是由於上面鏈接中提到的對Azure的cdn的多次調用,將代碼移動到母版頁中並僅加載了一次,像chrome這樣的瀏覽器很容易處理重復代碼,而不是IE 。
經過所有的研究,我迷失了為什么它不起作用。 因此,添加了以下JS,它們將檢查Silverlight和Flash,並優雅地處理錯誤並更新我們的分析。
function getBrowserInformation() {
var ua = navigator.userAgent, tem, M = ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [];
if (/trident/i.test(M[1])) {
tem = /\brv[ :]+(\d+)/g.exec(ua) || [];
return { name: 'IE ', version: (tem[1] || '') };
}
if (M[1] === 'Chrome') {
tem = ua.match(/\bOPR\/(\d+)/)
if (tem != null) { return { name: 'Opera', version: tem[1] }; }
}
M = M[2] ? [M[1], M[2]] : [navigator.appName, navigator.appVersion, '-?'];
if ((tem = ua.match(/version\/(\d+)/i)) != null) { M.splice(1, 1, tem[1]); }
return {
name: M[0],
version: M[1]
};};
function checkForAzureErrors() {
function isSilverlightInstalled() {
var isSilverlightInstalled = false;
try {
//check on IE
try {
var slControl = new ActiveXObject('AgControl.AgControl');
isSilverlightInstalled = true;
}
catch (e) {
//either not installed or not IE. Check Firefox/Safari
if (navigator.plugins["Silverlight Plug-In"]) {
isSilverlightInstalled = true;
}
}
}
catch (e) {
console.log(e);
}
return isSilverlightInstalled;
}
function isFlashInstalled() {
try {
return Boolean(new ActiveXObject('ShockwaveFlash.ShockwaveFlash'));
} catch (exception) {
return ('undefined' != typeof navigator.mimeTypes['application/x-shockwave-flash']);
}
}
function addErrorMessage() {
$($("#mediaPlayer.marginBlock").find('h3')).text('Media is not supported on this browser or device.');
$($("#mediaPlayer.marginBlock").find('video')).css('display', 'none');
$($("#mediaPlayer.marginBlock").find('p')).css('display', 'none');
$('.azuremediaplayer').css('display', 'none');
ga("send", "event", "Videos", "error",
getBrowserInformation().name + getBrowserInformation().version +
": is silverlight Installed " + isSilverlightInstalled() +
" and is Flash Installed " + isFlashInstalled());
}
function checkBrowser() {
if ((getBrowserInformation().name === 'MSIE' || getBrowserInformation().name === 'IE')) {
if (getBrowserInformation().version < 11) {
addErrorMessage();
}
} else if (getBrowserInformation().name === 'Firefox') {
addErrorMessage();
}
}
if ((getBrowserInformation().name === 'MSIE' || getBrowserInformation().name === 'IE')) {
if (getBrowserInformation().version < 9) { addErrorMessage() }
}
for (var key in amp.players) {
if (amp.players.hasOwnProperty(key)) {
if (isSilverlightInstalled()) {
if (!amp.players[key].isReady_) {
checkBrowser();
}
} else if (!isFlashInstalled()) {
checkBrowser();
}
}
}}
在document.ready函數中頁面加載5秒后,將調用此函數,使其有足夠的時間加載並使isReady_boolean為true。
SetTimeout(function () { checkForAzureErrors(); }, 5000);
我仍然在等待天使解決這個問題。
更新:部分固定
需要像舊版本一樣添加xap引用,它將播放silverlight,但有一個問題,僅當您每頁有一個視頻時,它才起作用。
<script>
amp.options.flashSS.swf = "http://amp.azure.net/libs/amp/1.3.0/techs/StrobeMediaPlayback.2.0.swf"
amp.options.flashSS.plugin = "http://amp.azure.net/libs/amp/1.3.0/techs/MSAdaptiveStreamingPlugin-osmf2.0.swf"
amp.options.silverlightSS.xap = "http://amp.azure.net/libs/amp/1.3.0/techs/SmoothStreamingPlayer.xap"
</script>
根據阿米特·拉傑普特 ( Amit Rajput)的評論
@Parshii當前,根據文檔,Azure Media Player不支持多實例播放。 盡管它可能適用於某些技術人員,但目前尚不是經過測試的方案。 請隨時將其添加到UserVoice論壇( http://aka.ms/ampuservoice )。
根據我的測試,它可以在html5和Flash中工作,但不能在Silverlight中工作,為了獲得Silverlight支持,我們可以根據rnevereverdies的評論嘗試使用iframe
單實例媒體播放器適用於所有技術。
@Parshii當前,根據文檔,Azure Media Player不支持多實例播放。 盡管它可能適用於某些技術人員,但目前尚不是經過測試的方案。 請隨時將其添加到UserVoice論壇( http://aka.ms/ampuservoice )。
這可能不是一個完整的答案,但可以為您提供幫助。
我為Azure Media Player 1.3.0制作了以下插件,該插件記錄了用戶執行的所有活動以及錯誤。
var mylogFunction = function(data) { console.log(data); };
var options = {
techOrder: ["azureHtml5JS", "flashSS", "silverlightSS", "html5"],
nativeControlsForTouch: false,
loop: false,
logo: { enabled: false },
heuristicProfile: "Quick Start", //"High Quality", // could be "Quick Start"
customPlayerSettings: {
customHeuristicSettings: {
preRollInSec: 4,
windowSizeHeuristics: true
}
},
plugins: {
DebugLog: {
logFunction: mylogFunction
}
}
};
var amPlayer = amp("yourvideotagid", options);
var amp;
(function (amp) {
amp.plugin('DebugLog', DebugLog);
function DebugLog(options) {
var player = this;
var log = function (data) { console.log("Azure Media Player Log", data); }
if (options) {
if (options['logFunction']) {
log = options['logFunction'];
}
}
init();
function init() {
player.ready(handleReady);
player.addEventListener(amp.eventName.error, handleError);
}
function handleReady() {
player.addEventListener(amp.eventName.loadedmetadata, handleLoadedMetaData);
var data = {
ampVersion: "1.3.0",
appName: options['appName'],
userAgent: navigator.userAgent,
options: {
autoplay: player.options().autoplay,
heuristicProfile: player.options().heuristicProfile,
techOrder: JSON.stringify(player.options().techOrder)
}
};
logData("InstanceCreated", 1, data);
}
function handleError() {
var err = player.error();
var data = {
sessionId: player.currentSrc(),
currentTime: player.currentTime(),
code: "0x" + err.code.toString(16),
message: err.message
};
logData("Error", 0, data);
}
function handleLoadedMetaData() {
player.addEventListener(amp.eventName.playbackbitratechanged, handlePlaybackBitrateChanged);
player.addEventListener(amp.eventName.playing, handlePlaying);
player.addEventListener(amp.eventName.seeking, handleSeeking);
player.addEventListener(amp.eventName.pause, handlePaused);
player.addEventListener(amp.eventName.waiting, handleWaiting);
player.addEventListener(amp.eventName.ended, handleEnded);
if (player.audioBufferData()) {
player.audioBufferData().addEventListener(amp.bufferDataEventName.downloadfailed, function () {
var data = {
sessionId: player.currentSrc(),
currentTime: player.currentTime(),
bufferLevel: player.audioBufferData().bufferLevel,
url: player.audioBufferData().downloadFailed.mediaDownload.url,
code: "0x" + player.audioBufferData().downloadFailed.code.toString(16),
message: player.audioBufferData().downloadFailed
};
logData("DownloadFailed", 0, data);
});
}
if (player.videoBufferData()) {
player.videoBufferData().addEventListener(amp.bufferDataEventName.downloadfailed, function () {
var data = {
sessionId: player.currentSrc(),
currentTime: player.currentTime(),
bufferLevel: player.videoBufferData().bufferLevel,
url: player.videoBufferData().downloadFailed.mediaDownload.url,
code: "0x" + player.videoBufferData().downloadFailed.code.toString(16),
message: player.videoBufferData().downloadFailed
};
logData("DownloadFailed", 0, data);
});
}
var data = {
sessionId: player.currentSrc(),
isLive: player.isLive(),
duration: player.duration(),
tech: player.currentTechName(),
protection: ((player.currentProtectionInfo() && player.currentProtectionInfo()[0]) ? player.currentProtectionInfo()[0].type : "clear")
};
logData("PresentationInfo", 1, data);
}
function handlePlaybackBitrateChanged(event) {
logData("BitrateChanged", 1, eventData(event));
}
function handleWaiting(event) {
logData("Waiting", 0, eventData(event));
}
function handlePlaying(event) {
logData("Playing", 1, eventData(event));
}
function handleSeeking(event) {
logData("Seeking", 1, eventData(event));
}
function handlePaused(event) {
logData("Paused", 1, eventData(event));
}
function handleEnded(event) {
logData("Ended", 1, eventData(event));
}
function logData(eventId, level, data) {
var eventLog = {
eventId: eventId,
level: level,
data: data
};
log(eventLog);
}
function eventData(event) {
return {
sessionId: player.currentSrc(),
currentTime: player.currentTime(),
isLive: player.isLive(),
event: event.type,
presentationTimeInSec: event.presentationTimeInSec,
message: event.message ? event.message : ""
};
}
}
})(amp || (amp = {}));
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