我正在创建一个自定义html5视频播放器，该播放器可以播放实时流，录制实时流并播放常规视频文件。录制我正在使用RecordRTC。一切运行良好，但我需要创建一个自定义的搜索栏。为此，我只需使用
var seekerPosition = (video.currentTime * 1000) / (video.duration * 1000);
var seekerValue = seekerPosition * 100 + "%";
，然后将此值添加到栏的CSS宽度。但是我的搜寻器栏会在视频开始播放一段时间后开始播放。通过此question，我发现视频时长仅在视频的readyState更改时才可用。因此，即使readyState为4，我也进行了检查，持续时间显示为 Infinity 。这是我的代码：
<video id="video" class="video" muted></video>
function startTracking() {
reqId = requestAnimationFrame(function play() {
console.log("currentTime = " + video.currentTime + " , duration = " + video.duration + " , readyState is " + video.readyState);
var seekerPosition = (video.currentTime * 1000) / (video.duration * 1000);
var seekerValue = seekerPosition * 100 + "%";
//console.log("( " + (video.currentTime * 1000) + " / " + (video.duration * 1000) + " ) * 100 = " + seekerValue);
$(seeker).css("width", seekerValue);
reqId = requestAnimationFrame(play);
});
};
function stopTracking() {
if (reqId) {
cancelAnimationFrame(reqId);
}
};
function togglePlayPause() {
if ($(playPause).hasClass("play")) {
$(playPause).addClass("pause").removeClass("play");
video.pause();
if (recorder === null && liveStream === null)
stopTracking();
}
else if ($(playPause).hasClass("pause")) {
$(playPause).addClass("play").removeClass("pause");
video.play();
if (recorder === null && liveStream === null)
startTracking();
}
}
我刚刚录制了7秒钟的视频，然后播放了它，并且我还向您展示了console.log的结果。此结果是通过startTracking函数生成的。
currentTime = 0.221292 , duration = Infinity , readyState is 4
currentTime = 0.238313 , duration = Infinity , readyState is 4
currentTime = 0.25625 , duration = Infinity , readyState is 4
currentTime = 0.271875 , duration = Infinity , readyState is 4
currentTime = 0.288854 , duration = Infinity , readyState is 4
currentTime = 0.304854 , duration = Infinity , readyState is 4
currentTime = 0.322396 , duration = Infinity , readyState is 4
currentTime = 0.338375 , duration = Infinity , readyState is 4
currentTime = 0.355396 , duration = Infinity , readyState is 4
currentTime = 0.371375 , duration = Infinity , readyState is 4
currentTime = 0.388375 , duration = Infinity , readyState is 4
currentTime = 0.405313 , duration = Infinity , readyState is 4
currentTime = 0.421396 , duration = Infinity , readyState is 4
currentTime = 0.438438 , duration = Infinity , readyState is 4
currentTime = 0.456375 , duration = Infinity , readyState is 4
currentTime = 0.472396 , duration = Infinity , readyState is 4
currentTime = 0.488396 , duration = Infinity , readyState is 4
currentTime = 0.505396 , duration = Infinity , readyState is 4
currentTime = 0.521417 , duration = Infinity , readyState is 4
currentTime = 0.539375 , duration = Infinity , readyState is 4
currentTime = 0.555417 , duration = Infinity , readyState is 4
currentTime = 0.571292 , duration = Infinity , readyState is 4
currentTime = 0.588292 , duration = Infinity , readyState is 4
currentTime = 0.605313 , duration = Infinity , readyState is 4
currentTime = 0.622396 , duration = Infinity , readyState is 4
currentTime = 0.639438 , duration = Infinity , readyState is 4
currentTime = 0.655417 , duration = Infinity , readyState is 4
currentTime = 0.671396 , duration = Infinity , readyState is 4
currentTime = 0.688354 , duration = Infinity , readyState is 4
currentTime = 0.705354 , duration = Infinity , readyState is 4
currentTime = 0.721479 , duration = Infinity , readyState is 4
currentTime = 0.738375 , duration = Infinity , readyState is 4
currentTime = 0.755396 , duration = Infinity , readyState is 4
currentTime = 0.772375 , duration = Infinity , readyState is 4
currentTime = 0.789333 , duration = Infinity , readyState is 4
currentTime = 0.805333 , duration = Infinity , readyState is 4
currentTime = 0.821417 , duration = Infinity , readyState is 4
currentTime = 0.839417 , duration = Infinity , readyState is 4
currentTime = 0.856375 , duration = Infinity , readyState is 4
currentTime = 0.872354 , duration = Infinity , readyState is 4
currentTime = 0.888417 , duration = Infinity , readyState is 4
currentTime = 0.905417 , duration = Infinity , readyState is 4
currentTime = 0.921417 , duration = Infinity , readyState is 4
currentTime = 0.939333 , duration = Infinity , readyState is 4
currentTime = 0.955417 , duration = Infinity , readyState is 4
currentTime = 0.972354 , duration = Infinity , readyState is 4
currentTime = 0.988313 , duration = Infinity , readyState is 4
currentTime = 1.005313 , duration = Infinity , readyState is 4
currentTime = 1.021396 , duration = Infinity , readyState is 4
currentTime = 1.038313 , duration = Infinity , readyState is 4
currentTime = 1.05625 , duration = Infinity , readyState is 4
currentTime = 1.071271 , duration = Infinity , readyState is 4
currentTime = 1.088271 , duration = Infinity , readyState is 4
currentTime = 1.105229 , duration = Infinity , readyState is 4
currentTime = 1.121958 , duration = Infinity , readyState is 4
currentTime = 1.138938 , duration = Infinity , readyState is 4
currentTime = 1.155417 , duration = Infinity , readyState is 4
currentTime = 1.171333 , duration = Infinity , readyState is 4
currentTime = 1.188333 , duration = Infinity , readyState is 4
currentTime = 1.206333 , duration = Infinity , readyState is 4
currentTime = 1.221938 , duration = Infinity , readyState is 4
currentTime = 1.238396 , duration = Infinity , readyState is 4
currentTime = 1.257396 , duration = Infinity , readyState is 4
currentTime = 1.271354 , duration = Infinity , readyState is 4
currentTime = 1.288354 , duration = Infinity , readyState is 4
currentTime = 1.306354 , duration = Infinity , readyState is 4
currentTime = 1.321333 , duration = Infinity , readyState is 4
currentTime = 1.338271 , duration = Infinity , readyState is 4
currentTime = 1.35525 , duration = Infinity , readyState is 4
currentTime = 1.372229 , duration = Infinity , readyState is 4
currentTime = 1.389167 , duration = Infinity , readyState is 4
currentTime = 1.406167 , duration = Infinity , readyState is 4
currentTime = 1.421208 , duration = Infinity , readyState is 4
currentTime = 1.43925 , duration = Infinity , readyState is 4
currentTime = 1.455229 , duration = Infinity , readyState is 4
currentTime = 1.471188 , duration = Infinity , readyState is 4
currentTime = 1.488229 , duration = Infinity , readyState is 4
currentTime = 1.506229 , duration = Infinity , readyState is 4
currentTime = 1.521271 , duration = Infinity , readyState is 4
currentTime = 1.539208 , duration = Infinity , readyState is 4
currentTime = 1.55525 , duration = Infinity , readyState is 4
currentTime = 1.572167 , duration = Infinity , readyState is 4
currentTime = 1.589167 , duration = Infinity , readyState is 4
currentTime = 1.605167 , duration = Infinity , readyState is 4
currentTime = 1.622271 , duration = Infinity , readyState is 4
currentTime = 1.639208 , duration = Infinity , readyState is 4
currentTime = 1.655167 , duration = Infinity , readyState is 4
currentTime = 1.67125 , duration = Infinity , readyState is 4
currentTime = 1.689188 , duration = Infinity , readyState is 4
currentTime = 1.705188 , duration = Infinity , readyState is 4
currentTime = 1.721229 , duration = Infinity , readyState is 4
currentTime = 1.73825 , duration = Infinity , readyState is 4
currentTime = 1.755188 , duration = Infinity , readyState is 4
currentTime = 1.772667 , duration = Infinity , readyState is 4
currentTime = 1.788667 , duration = Infinity , readyState is 4
currentTime = 1.805667 , duration = Infinity , readyState is 4
currentTime = 1.821292 , duration = Infinity , readyState is 4
currentTime = 1.838292 , duration = Infinity , readyState is 4
currentTime = 1.855313 , duration = Infinity , readyState is 4
currentTime = 1.871292 , duration = Infinity , readyState is 4
currentTime = 1.888292 , duration = Infinity , readyState is 4
currentTime = 1.90525 , duration = Infinity , readyState is 4
currentTime = 1.92125 , duration = Infinity , readyState is 4
currentTime = 1.938271 , duration = Infinity , readyState is 4
currentTime = 1.955313 , duration = Infinity , readyState is 4
currentTime = 1.97125 , duration = Infinity , readyState is 4
currentTime = 1.98825 , duration = Infinity , readyState is 4
currentTime = 2.006229 , duration = Infinity , readyState is 4
currentTime = 2.021313 , duration = Infinity , readyState is 4
currentTime = 2.038292 , duration = Infinity , readyState is 4
currentTime = 2.055604 , duration = Infinity , readyState is 4
currentTime = 2.07125 , duration = Infinity , readyState is 4
currentTime = 2.08825 , duration = Infinity , readyState is 4
currentTime = 2.106313 , duration = Infinity , readyState is 4
currentTime = 2.122313 , duration = Infinity , readyState is 4
currentTime = 2.138292 , duration = Infinity , readyState is 4
currentTime = 2.155333 , duration = Infinity , readyState is 4
currentTime = 2.172271 , duration = Infinity , readyState is 4
currentTime = 2.188271 , duration = Infinity , readyState is 4
currentTime = 2.205271 , duration = Infinity , readyState is 4
currentTime = 2.221208 , duration = Infinity , readyState is 4
currentTime = 2.238208 , duration = Infinity , readyState is 4
currentTime = 2.255667 , duration = Infinity , readyState is 4
currentTime = 2.270729 , duration = Infinity , readyState is 4
currentTime = 2.289292 , duration = Infinity , readyState is 4
currentTime = 2.306292 , duration = Infinity , readyState is 4
currentTime = 2.321292 , duration = Infinity , readyState is 4
currentTime = 2.338313 , duration = Infinity , readyState is 4
currentTime = 2.356292 , duration = Infinity , readyState is 4
currentTime = 2.372229 , duration = Infinity , readyState is 4
currentTime = 2.389229 , duration = Infinity , readyState is 4
currentTime = 2.406229 , duration = Infinity , readyState is 4
currentTime = 2.421313 , duration = Infinity , readyState is 4
currentTime = 2.439229 , duration = Infinity , readyState is 4
currentTime = 2.455229 , duration = Infinity , readyState is 4
currentTime = 2.471188 , duration = Infinity , readyState is 4
currentTime = 2.489188 , duration = Infinity , readyState is 4
currentTime = 2.505188 , duration = Infinity , readyState is 4
currentTime = 2.521229 , duration = Infinity , readyState is 4
currentTime = 2.538208 , duration = Infinity , readyState is 4
currentTime = 2.556208 , duration = Infinity , readyState is 4
currentTime = 2.571188 , duration = Infinity , readyState is 4
currentTime = 2.588188 , duration = Infinity , readyState is 4
currentTime = 2.605167 , duration = Infinity , readyState is 4
currentTime = 2.622208 , duration = Infinity , readyState is 4
currentTime = 2.639188 , duration = Infinity , readyState is 4
currentTime = 2.655188 , duration = Infinity , readyState is 4
currentTime = 2.672229 , duration = Infinity , readyState is 4
currentTime = 2.688188 , duration = Infinity , readyState is 4
currentTime = 2.706188 , duration = Infinity , readyState is 4
currentTime = 2.722646 , duration = Infinity , readyState is 4
currentTime = 2.740667 , duration = Infinity , readyState is 4
currentTime = 2.756979 , duration = Infinity , readyState is 4
currentTime = 2.772292 , duration = Infinity , readyState is 4
currentTime = 2.789229 , duration = Infinity , readyState is 4
currentTime = 2.805229 , duration = Infinity , readyState is 4
currentTime = 2.821313 , duration = Infinity , readyState is 4
currentTime = 2.838333 , duration = Infinity , readyState is 4
currentTime = 2.85625 , duration = Infinity , readyState is 4
currentTime = 2.872229 , duration = Infinity , readyState is 4
currentTime = 2.889271 , duration = Infinity , readyState is 4
currentTime = 2.905271 , duration = Infinity , readyState is 4
currentTime = 2.921292 , duration = Infinity , readyState is 4
currentTime = 2.938271 , duration = Infinity , readyState is 4
currentTime = 2.957271 , duration = Infinity , readyState is 4
currentTime = 2.971313 , duration = Infinity , readyState is 4
currentTime = 2.988292 , duration = Infinity , readyState is 4
currentTime = 3.005292 , duration = Infinity , readyState is 4
currentTime = 3.022229 , duration = Infinity , readyState is 4
currentTime = 3.038313 , duration = Infinity , readyState is 4
currentTime = 3.055271 , duration = Infinity , readyState is 4
currentTime = 3.07125 , duration = Infinity , readyState is 4
currentTime = 3.090604 , duration = Infinity , readyState is 4
currentTime = 3.107604 , duration = Infinity , readyState is 4
currentTime = 3.120708 , duration = Infinity , readyState is 4
currentTime = 3.138292 , duration = Infinity , readyState is 4
currentTime = 3.155271 , duration = Infinity , readyState is 4
currentTime = 3.17125 , duration = Infinity , readyState is 4
currentTime = 3.18825 , duration = Infinity , readyState is 4
currentTime = 3.205313 , duration = Infinity , readyState is 4
currentTime = 3.221292 , duration = Infinity , readyState is 4
currentTime = 3.239313 , duration = Infinity , readyState is 4
currentTime = 3.255292 , duration = Infinity , readyState is 4
currentTime = 3.27125 , duration = Infinity , readyState is 4
currentTime = 3.289229 , duration = Infinity , readyState is 4
currentTime = 3.306229 , duration = Infinity , readyState is 4
currentTime = 3.321625 , duration = Infinity , readyState is 4
currentTime = 3.338208 , duration = Infinity , readyState is 4
currentTime = 3.356292 , duration = Infinity , readyState is 4
currentTime = 3.37225 , duration = Infinity , readyState is 4
currentTime = 3.38825 , duration = Infinity , readyState is 4
currentTime = 3.405292 , duration = Infinity , readyState is 4
currentTime = 3.42125 , duration = Infinity , readyState is 4
currentTime = 3.438271 , duration = Infinity , readyState is 4
currentTime = 3.456271 , duration = Infinity , readyState is 4
currentTime = 3.471313 , duration = Infinity , readyState is 4
currentTime = 3.489208 , duration = Infinity , readyState is 4
currentTime = 3.506208 , duration = Infinity , readyState is 4
currentTime = 3.52125 , duration = Infinity , readyState is 4
currentTime = 3.538313 , duration = Infinity , readyState is 4
currentTime = 3.55525 , duration = Infinity , readyState is 4
currentTime = 3.571188 , duration = Infinity , readyState is 4
currentTime = 3.588188 , duration = Infinity , readyState is 4
currentTime = 3.605313 , duration = Infinity , readyState is 4
currentTime = 3.621292 , duration = Infinity , readyState is 4
currentTime = 3.640688 , duration = Infinity , readyState is 4
currentTime = 3.657604 , duration = Infinity , readyState is 4
currentTime = 3.672333 , duration = Infinity , readyState is 4
currentTime = 3.688333 , duration = Infinity , readyState is 4
currentTime = 3.705188 , duration = Infinity , readyState is 4
currentTime = 3.722208 , duration = Infinity , readyState is 4
currentTime = 3.738271 , duration = Infinity , readyState is 4
currentTime = 3.755271 , duration = Infinity , readyState is 4
currentTime = 3.771292 , duration = Infinity , readyState is 4
currentTime = 3.788292 , duration = Infinity , readyState is 4
currentTime = 3.805292 , duration = Infinity , readyState is 4
currentTime = 3.821271 , duration = Infinity , readyState is 4
currentTime = 3.838313 , duration = Infinity , readyState is 4
currentTime = 3.856646 , duration = Infinity , readyState is 4
currentTime = 3.872229 , duration = Infinity , readyState is 4
currentTime = 3.888229 , duration = Infinity , readyState is 4
currentTime = 3.905229 , duration = Infinity , readyState is 4
currentTime = 3.921229 , duration = Infinity , readyState is 4
currentTime = 3.938229 , duration = Infinity , readyState is 4
currentTime = 3.955188 , duration = Infinity , readyState is 4
currentTime = 3.971542 , duration = Infinity , readyState is 4
currentTime = 3.989625 , duration = Infinity , readyState is 4
currentTime = 4.007625 , duration = Infinity , readyState is 4
currentTime = 4.020688 , duration = Infinity , readyState is 4
currentTime = 4.038313 , duration = Infinity , readyState is 4
currentTime = 4.05525 , duration = Infinity , readyState is 4
currentTime = 4.071313 , duration = Infinity , readyState is 4
currentTime = 4.088313 , duration = Infinity , readyState is 4
currentTime = 4.106229 , duration = Infinity , readyState is 4
currentTime = 4.121646 , duration = Infinity , readyState is 4
currentTime = 4.139625 , duration = Infinity , readyState is 4
currentTime = 4.155313 , duration = Infinity , readyState is 4
currentTime = 4.171229 , duration = Infinity , readyState is 4
currentTime = 4.18925 , duration = Infinity , readyState is 4
currentTime = 4.20525 , duration = Infinity , readyState is 4
currentTime = 4.222271 , duration = Infinity , readyState is 4
currentTime = 4.238292 , duration = Infinity , readyState is 4
currentTime = 4.256313 , duration = Infinity , readyState is 4
currentTime = 4.271292 , duration = Infinity , readyState is 4
currentTime = 4.289229 , duration = Infinity , readyState is 4
currentTime = 4.304229 , duration = Infinity , readyState is 4
currentTime = 4.322313 , duration = Infinity , readyState is 4
currentTime = 4.338292 , duration = Infinity , readyState is 4
currentTime = 4.354292 , duration = Infinity , readyState is 4
currentTime = 4.372229 , duration = Infinity , readyState is 4
currentTime = 4.389229 , duration = Infinity , readyState is 4
currentTime = 4.404229 , duration = Infinity , readyState is 4
currentTime = 4.422333 , duration = 6.96 , readyState is 4
currentTime = 4.439313 , duration = 6.96 , readyState is 4
currentTime = 4.454271 , duration = 6.96 , readyState is 4
currentTime = 4.472292 , duration = 6.96 , readyState is 4
currentTime = 4.489292 , duration = 6.96 , readyState is 4
currentTime = 4.504292 , duration = 6.96 , readyState is 4
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currentTime = 4.621625 , duration = 6.96 , readyState is 4
currentTime = 4.639333 , duration = 6.96 , readyState is 4
currentTime = 4.655292 , duration = 6.96 , readyState is 4
currentTime = 4.671292 , duration = 6.96 , readyState is 4
currentTime = 4.688292 , duration = 6.96 , readyState is 4
currentTime = 4.704313 , duration = 6.96 , readyState is 4
currentTime = 4.721313 , duration = 6.96 , readyState is 4
currentTime = 4.739313 , duration = 6.96 , readyState is 4
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currentTime = 4.771271 , duration = 6.96 , readyState is 4
currentTime = 4.788271 , duration = 6.96 , readyState is 4
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currentTime = 4.822333 , duration = 6.96 , readyState is 4
currentTime = 4.839313 , duration = 6.96 , readyState is 4
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currentTime = 4.92125 , duration = 6.96 , readyState is 4
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currentTime = 6.15525 , duration = 6.96 , readyState is 4
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currentTime = 6.189188 , duration = 6.96 , readyState is 4
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currentTime = 6.221208 , duration = 6.96 , readyState is 4
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currentTime = 6.555229 , duration = 6.96 , readyState is 4
currentTime = 6.572188 , duration = 6.96 , readyState is 4
currentTime = 6.588188 , duration = 6.96 , readyState is 4
currentTime = 6.60525 , duration = 6.96 , readyState is 4
currentTime = 6.621208 , duration = 6.96 , readyState is 4
currentTime = 6.638208 , duration = 6.96 , readyState is 4
currentTime = 6.654229 , duration = 6.96 , readyState is 4
currentTime = 6.672188 , duration = 6.96 , readyState is 4
currentTime = 6.689167 , duration = 6.96 , readyState is 4
currentTime = 6.705167 , duration = 6.96 , readyState is 4
currentTime = 6.72225 , duration = 6.96 , readyState is 4
currentTime = 6.738229 , duration = 6.96 , readyState is 4
currentTime = 6.754208 , duration = 6.96 , readyState is 4
currentTime = 6.771229 , duration = 6.96 , readyState is 4
currentTime = 6.788229 , duration = 6.96 , readyState is 4
currentTime = 6.804208 , duration = 6.96 , readyState is 4
currentTime = 6.82125 , duration = 6.96 , readyState is 4
currentTime = 6.838229 , duration = 6.96 , readyState is 4
currentTime = 6.855208 , duration = 6.96 , readyState is 4
答案 0 :(得分：0)
您还可以将媒体元素的currentTime设置为Number.MAX_SAFE_INTEGER，然后再次设置为0，这将强制浏览器解析整个视频直到结尾并为您返回最后一帧。 / p>
这将使您拥有一个可搜索的视频栏。