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jquery - Safari 中的 HTML5 音量问题

转载 作者:可可西里 更新时间:2023-11-01 13:36:32 25 4
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我注意到 Safari 中的音频播放音量不是 100%,即使我已将分配的控件设置为“1”。

是否有其他方法可以执行此操作,或者这可能是脚本中的问题?

使用此控件(如下所示)音频在 Firefox 中以 100% 播放。

更新:显然我使用的音量控制在 Safari 中无法识别(见下文),所以我现在正在寻找一种以 100% 音量播放音频的方法,使用这个下面的播放器,在 Safari 中。

根据 Safari Developer Library,阅读量总是返回 1,这就是我为播放器设置的值;但是,Safari 中的音量略低于其他浏览器。

问题可能出在我的脚本中,还是仅仅是 Safari 的问题?

另外, 我注意到更改音量参数会降低 Safari 中的音量,但 1 不等于 100%;因此,它确实有一些效果,但仍然存在问题。

这是我的 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>

音频播放器 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);

最佳答案

您是在谈论 Mobile Safari 吗?在那种情况下,根本无法使用 Javascript 设置音量。

读一读:http://www.ibm.com/developerworks/library/wa-ioshtml5/

如果您谈论的是桌面版 Safari,我的直觉是浏览器出了问题,而不是您的代码。

关于jquery - Safari 中的 HTML5 音量问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15562724/

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