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html5的video标签不能播放如何解决

发布时间:2023-01-29 09:44:52 来源:亿速云 阅读:560 作者:iii 栏目:web开发

这篇“html5的video标签不能播放如何解决”文章的知识点大部分人都不太理解,所以小编给大家总结了以下内容,内容详细,步骤清晰,具有一定的借鉴价值,希望大家阅读完这篇文章能有所收获,下面我们一起来看看这篇“html5的video标签不能播放如何解决”文章吧。

html5的video标签不能播放的解决办法:1、使用视频截图做一个播放按钮,占位视频原有位置;2、监听占位按钮的click事件,使用“video.play()”;3、把占位图和loading隐藏即可。

IOS-HTML5-Video标签不能播放

h6的video标签 在UIwebview中无法播放,Safari可以,

某些手机可以某些手机不行

和video.js实现一致,不嫌弃再引一个兼容包,想有更好体验的

建议使用https://videojs.com/

想自己体验一把原理,可以在文章最后拷贝demo代码运行

传统的方法在HTML中写video标签就可以点击播放啦

<video src="xxx.mp4" controls poster="url?vframe/jpg/offset/5" preload="load"></video>
// ?vframe/jpg/offset/5  这个是七牛接口,取截图用的,5就是第5秒截图

BUT,这么写在IOS 10.3.2/3 11.x.x. iphone 6/6p 7等等几个测试机中就不行,但是在个人手机上又可以,有的手机可以有的手机不行。

修改后:

步骤1:使用视频截图再做一个播放按钮,占位视频原有位置

步骤2: 监听占位按钮的click事件,使用video.play(),就可以看到视频有请求在加载了

步骤3: 在加载中的视频都有一个promise可以拿到,then以后把占位图和loading隐藏就可以了

tips:

  • 不同手机/系统会有不同的请求范围,一般都是分割成3-5个206请求。

  • console.time("加载毫秒");可以看到加载时间,基本和Charles抓包看到的一致。

  • 不同手机/系统也会有不同的then表现有的是一点就给返回,有的是需要等视频全部加载完才返回

  • 视频DOM的属性可以拿到当前加载了多少,总量是多少,除一下就是百分比,具体属性可以看 > https://developer.mozilla.org/zh-CN/docs/Web/HTML/Element/video

线上地址:http://m.soyoung.com/item/detail?type=0&sys=3&item_id=263&cityId=0

demo代码(方便有些朋友,私信想直接拿走demo啦~)

<!DOCTYPE html>
<html data-dpr="1" style="font-size: 55px;">
    <head>
        <meta charset="utf-8"/><meta http-equiv="x-ua-compatible" content="IE=edge,chrome=1"/>
        <title>视频DEMO</title>
    </head>
    <body style="font-size: 24px;">
        <style>
            html,body,video{
                margin: 0;
                padding: 0;
            }
            .pub-swipe .media {
                position: relative;
                font-size: 0;
                margin-bottom: 0.4rem;
            }
            .pub-swipe .media img,
            .pub-swipe .media video {
                display: block;
                margin: 0 auto;
                width: 100%;
                min-height: 4.667rem;
            }
            .pub-swipe .desc,
            .pub-swipe .media img {
                margin-bottom: 0.267rem;
            }
            .pub-swipe .media video {
                width: 100%;
                height: 4.667rem;
            }
            .pub-swipe .media img.video-go {
                width: 2.707rem;
                height: 2.707rem;
                min-height: 0;
                position: absolute;
                left: 50%;
                margin-left: -.853rem;
                top: 1.3rem;
                z-index: 5;
            }
            .hide {
                display: none !important;
            }
        </style>
        <div class="pub-swipe">
            <p class="media">
                <i class="video-i" data-src="http://videosy.soyoung.com/item-263.MP4">
                    <img src="http://videosy.soyoung.com/item-263.MP4?vframe/jpg/offset/5"/>
                    <img class="video-go" src="https://mstatic.soyoung.com/m/static/img/product/video_go.png"/>
                </i>
            </p>
        </div>
        <script>
            /**
         * 视频加载兼容处理
         */
            var isIPhone = window.navigator.appVersion.match(/iphone/gi);
            var creat_video = function () {
                var _video = document.getElementsByClassName('video-i');
                if (_video.length > 0) {
                    for (var i = 0; i < _video.length; i++) {
                        var _that = _video[i];
                        _that.addEventListener('click', function (e) {
                            var _this = e.currentTarget,
                                _videoUrl = _this.getAttribute('data-src'),
                                _img = _this.children[0].getAttribute('src'),
                                _dom = document.createElement('video'),
                                _autoPlayAllowed = true,
                                _loading = document.createElement('div'),
                                _p,
                                _process = document.createElement('i');
                            _noSound = document.createElement('em');
                            if (_this.getAttribute('data-video')) {
                                var _video = _this.parentNode.querySelectorAll('video');
                                var _noSound = _this.parentNode.querySelectorAll('.no-sound');
                                if (_video.length > 0) {
                                    _dom = _video[0];
                                    // if (_dom.ended) {
                                    if (isIPhone) {
                                        //修改Ios11状态不准,视频无法播放的问题
                                        if (_dom.src.indexOf('random') > -1) {
                                            _dom.src = _dom.src.split('random=')[0] + 'random=' + _dom.src.split('random=')[1] + 1;
                                        } else {
                                            _dom.src = _dom.src + '?random=' + Math.floor(Math.random() * (100 - 10 + 1) + 10);
                                        }
                                    }
                                    _noSound[0].classList.remove('hide');
                                    _dom.play();
                                    _this.classList.add('hide');
                                    _dom.classList.remove('hide');
                                    // }
                                }
                                return;
                            }
                            _this.setAttribute('data-video', '1');
                            _process.setAttribute('class', 'vjs-process');
                            _process.innerHTML = '加载中...';
                            _loading.setAttribute('class', 'vjs-loading-spinner');
                            _dom.setAttribute('src', _videoUrl);
                            _dom.setAttribute('controls', 'controls');
                            _dom.setAttribute('autoPlay', 'false');
                            // _dom.setAttribute('x5-video-player-type', 'h6');
                            _this.parentNode.appendChild(_loading);
                            _this.parentNode.appendChild(_process);
                            _this.parentNode.classList.add('vjs-waiting');
                            _noSound.setAttribute('class', 'no-sound');
                            _noSound.innerHTML = '无声';
                            // _dom.setAttribute('webkit-playsinline', 'webkit-playsinline');
                            // _dom.setAttribute('playsinline', 'playsinline');
                            _dom.setAttribute('poster', _img);
                            _p = _dom.play();
                            console.time("加载毫秒");
                            var _dom_buffered_promise = function () {
                                var _end = _dom.buffered.end(0);
                                var _duration = _dom.duration;
                                var _a = Math.round(_end / _duration * 100);
                                _process.innerHTML = _a + '%';
                                console.log(_end + ' ' + _duration)
                                if (_a < 10) {
                                    setTimeout(_dom_buffered, 200);
                                } else {
                                    _dom_buffered();
                                }
                            };
                            var _dom_buffered = function () {
                                _this.parentNode.classList.remove('vjs-waiting');
                                _this.classList.add('hide');
                                _process.classList.add('hide');
                                _this.parentNode.appendChild(_dom);
                                _this.parentNode.appendChild(_noSound);
                                _dom.addEventListener('ended', function () {
                                    _dom.classList.add('hide');
                                    _this.classList.remove('hide');
                                    _noSound.classList.add('hide');
                                });
                                _dom.currentTime = 0;
                                console.timeEnd("加载毫秒");
                            };
                            if (_p instanceof Promise) {
                                _p.catch(function (error) {
                                    console.log(error.message);
                                    if (error.name === 'NotAllowedError') {
                                        _autoPlayAllowed = false;
                                    }
                                }).then(function (e) {
                                    if (_autoPlayAllowed) {
                                        _dom_buffered_promise();
                                    }
                                });
                            } else {
                                //ios8-9拿不到promise需要给个延时处理
                                setTimeout(function () {
                                    _dom_buffered();
                                }, 4000);
                            }
                        });
                    }
                }
            };
            new creat_video();
        </script>
    </body>
</html>

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