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我注意到Safari中的音頻播放音量爲不是100％，即使我將分配的控件設置爲「1」。Safari中HTML5音量的問題
有沒有另外做到這一點，或者這可能是在腳本中的問題？
使用此控件（如下所示），音頻在Firefox中以100％播放。
更新：顯然，我使用的音量控制沒有在Safari（見下文）的認可，所以現在我正在尋找一種方法以100％的音量播放音頻，使用下面這個播放器，在蘋果瀏覽器。
根據Safari開發者庫，閱讀音量總是返回1，這正是我設置我的播放器的原因;但是，Safari的音量略低於其他瀏覽器。
問題可能出現在我的腳本中，還是僅僅是Safari的問題？
ALSO，我注意到，改變音量參數會減弱Safari中的音量，但1不等於100％。因此，它確實有一些效果，但仍然存在問題。
這裏是我的HTML：
<head>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="src/jquery.ubaplayer.js"></script>
<script>
jQuery(document).ready(function() {
jQuery.noConflict();
jQuery(function(){
jQuery("#ubaPlayer").ubaPlayer({
codecs: [{name:"MP3", codec: 'audio/mpeg;'}]
});
});
jQuery('a[rel=vidbox]').click(function() {
if (jQuery("#ubaPlayer").ubaPlayer("playing") === true) {
jQuery("#ubaPlayer").ubaPlayer("pause");
}
return false;
});
})
</script>
</head>
<body>
<div id="ubaPlayer"></div>
<ul class="controls">
<li><a class="audioButton" href="mp3/dontthinktwice.mp3">
Don't Think Twice (Bob Dylan)</a></li>
<li><a class="audioButton" href="mp3/livingforthecity.mp3">
Living for the City (Stevie Wonder)</a></li>
</ul>
</body>
音頻播放器的Javascript：
(function($) {
var defaults = {
audioButtonClass: "audioButton",
autoPlay: null,
codecs: [{
name: "OGG",
codec: 'audio/ogg; codecs="vorbis"'
}, {
name: "MP3",
codec: 'audio/mpeg'
}],
continuous: false,
extension: null,
flashAudioPlayerPath: "libs/swf/player.swf",
flashExtension: ".mp3",
flashObjectID: "audioPlayer",
loadingClass: "loading",
loop: false,
playerContainer: "player",
playingClass: "playing",
swfobjectPath: "libs/swfobject/swfobject.js",
volume: 1
},
currentTrack, isPlaying = false,
isFlash = false,
audio, $buttons, $tgt, $el, playTrack, resumeTrack, pauseTrack, methods = {
play: function(element) {
$tgt = element;
currentTrack = _methods.getFileNameWithoutExtension($tgt.attr("href"));
isPlaying = true;
$tgt.addClass(defaults.loadingClass);
$buttons.removeClass(defaults.playingClass);
if (isFlash) {
if (audio) {
_methods.removeListeners(window);
}
audio = document.getElementById(defaults.flashObjectID);
_methods.addListeners(window);
audio.playFlash(currentTrack + defaults.extension);
} else {
if (audio) {
audio.pause();
_methods.removeListeners(audio);
}
audio = new Audio("");
_methods.addListeners(audio);
audio.id = "audio";
audio.loop = defaults.loop ? "loop" : "";
audio.volume = defaults.volume;
audio.src = currentTrack + defaults.extension;
audio.play();
}
},
pause: function() {
if (isFlash) {
audio.pauseFlash();
} else {
audio.pause();
}
$tgt.removeClass(defaults.playingClass);
isPlaying = false;
},
resume: function() {
if (isFlash) {
audio.playFlash();
} else {
audio.play();
}
$tgt.addClass(defaults.playingClass);
isPlaying = true;
},
playing: function() {
return isPlaying;
}
},
_methods = {
init: function(options) {
var types;
//set defaults
$.extend(defaults, options);
$el = this;
//listen for clicks on the controls
$(".controls").bind("click", function(event) {
_methods.updateTrackState(event);
return false;
});
$buttons = $("." + defaults.audioButtonClass);
types = defaults.codecs;
for (var i = 0, ilen = types.length; i < ilen; i++) {
var type = types[i];
if (_methods.canPlay(type)) {
defaults.extension = [".", type.name.toLowerCase()].join("");
break;
}
}
if (!defaults.extension || isFlash) {
isFlash = true;
defaults.extension = defaults.flashExtension;
}
if (isFlash) {
$el.html("<div id='" + defaults.playerContainer + "'/>");
$.getScript(defaults.swfobjectPath, function() {
swfobject.embedSWF(defaults.flashAudioPlayerPath, defaults.playerContainer, "0", "0", "9.0.0", "swf/expressInstall.swf", false, false, {
id: defaults.flashObjectID
}, _methods.swfLoaded);
});
} else {
if (defaults.autoPlay) {
methods.play(defaults.autoPlay);
}
}
},
updateTrackState: function(evt) {
$tgt = $(evt.target);
if (!$tgt.hasClass("audioButton")) {
return;
}
if (!audio || (audio && currentTrack !== _methods.getFileNameWithoutExtension($tgt.attr("href")))) {
methods.play($tgt);
} else if (!isPlaying) {
methods.resume();
} else {
methods.pause();
}
},
addListeners: function(elem) {
$(elem).bind({
"canplay": _methods.onLoaded,
"error": _methods.onError,
"ended": _methods.onEnded
});
},
removeListeners: function(elem) {
$(elem).unbind({
"canplay": _methods.onLoaded,
"error": _methods.onError,
"ended": _methods.onEnded
});
},
onLoaded: function() {
$buttons.removeClass(defaults.loadingClass);
$tgt.addClass(defaults.playingClass);
audio.play();
},
onError: function() {
$buttons.removeClass(defaults.loadingClass);
if (isFlash) {
_methods.removeListeners(window);
} else {
_methods.removeListeners(audio);
}
},
onEnded: function() {
isPlaying = false;
$tgt.removeClass(defaults.playingClass);
currentTrack = "";
if (isFlash) {
_methods.removeListeners(window);
} else {
_methods.removeListeners(audio);
}
if (defaults.continuous) {
var $next = $tgt.next().length ? $tgt.next() : $(defaults.audioButtonClass).eq(0);
methods.play($next);
}
},
canPlay: function(type) {
if (!document.createElement("audio").canPlayType) {
return false;
} else {
return document.createElement("audio").canPlayType(type.codec).match(/maybe|probably/i) ? true : false;
}
},
swfLoaded: function() {
if (defaults.autoPlay) {
setTimeout(function() {
methods.play(defaults.autoPlay);
}, 500);
}
},
getFileNameWithoutExtension: function(fileName) {
//this function take a full file name and returns an extensionless file name
//ex. entering foo.mp3 returns foo
//ex. entering foo returns foo (no change)
var fileNamePieces = fileName.split('.');
fileNamePieces.pop();
return fileNamePieces.join(".");
}
};
$.fn.ubaPlayer = function(method) {
if (methods[method]) {
return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
} else if (typeof method === "object" || !method) {
return _methods.init.apply(this, arguments);
} else {
$.error("Method " + method + " does not exist on jquery.ubaPlayer");
}
};})(jQuery);
Safari使用WebKit引擎，Firefox使用Gecko引擎。他們都以不同的方式解釋JavaScript。 – ShuklaSannidhya 2013-03-22 04:37:22
@Sann - 我注意到，改變音量參數會減弱Safari中的音量，但1不等於100％。因此，它確實有一些效果，但不是完全控制。 – pianoman 2013-03-22 04:52:36
@Sann不，他們不。這顯然是錯誤的。不同的是支持某些功能和API。 – 2013-03-23 09:04:05