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Detailed explanation of HTML5 video tag testing application

零下一度Original: 2017-05-19 16:50:202707browse

1. Use of video tag

Attributes: src (path to the audio file to be played), autoplay (whether to play automatically), control (progress bar), loop (loop playback) ), onended (whether the completion of playback is an event)

2. Implemented a simple player

The interface is as follows:

3. Function

is mainly accomplished through onclick and onended events. Specifically, all the above are implemented, but there are requirements for the naming of audio files. Please see Code

4. Code:

<!DOCTYPE HTML>
<html>
<head>
<title>播放视频</title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>
</head>
<body>
<p style="cursor:pointer;" onclick="javascript:playvideo(1);">播放视频</p>
<p style="cursor:pointer;" onclick="javascript:playvideo(2);">关闭视频</p>
<video id="video" style="width:1024px; height:600px; margin:0 auto; display:none;" src="./mybroadcast2.mkv" autoplay="autoplay" controls="controls" onended="javascript:videoover();" onclick="javascript:screen_stop();" ondblclick="javascript:double_click();">您的浏览器暂不支持播放该视频，请升级至最新版浏览器。</video>
<button id="hary_run" style="width:100px; height:35px; cursor:pointer;" onclick="javascript:controlTV(&#39;hary_run&#39;);">快进</button>
<button id="stop_run" style="width:100px; height:35px; cursor:pointer;" onclick="javascript:controlTV(&#39;stop_run&#39;);">暂停</button>
<button id="current_run" style="width:100px; height:35px; cursor:pointer;" disabled=true onclick="javascript:controlTV(&#39;current_run&#39;);">播放</button>
<button id="open_voice" style="width:100px; height:35px; cursor:pointer;" onclick="javascript:controlTV(&#39;open_voice&#39;);">静音</button>
<button id="close_voice" style="width:100px; height:35px; cursor:pointer;" disabled=true onclick="javascript:controlTV(&#39;close_voice&#39;);">取消静音</button>
</body>
<script>
function playvideo(type){
var openvideo = document.getElementById("video");
if (type == 1){
openvideo.style.display = "block";
} else if (type == 2){
openvideo.style.display = "none";
}
}
// 让视频循环列表播放
function videoover(){
var videoId = document.getElementById("video");
var video_path = videoId.src;
var path_begin = video_path.substring(0, video_path.lastIndexOf(".")-1);
var path_end = video_path.substring(video_path.lastIndexOf("."));
var num = parseInt(video_path.charAt(video_path.lastIndexOf(".")-1));
if (num >= 3) {
num = 0;
} else {
num++;
}
videoId.src = path_begin + num.toString() + path_end;
}
// 控制视频
function controlTV(oprationId){
var runId = document.getElementById(oprationId);
var btn_value = runId.innerText;
// 获取媒体播放Id
var videoId = document.getElementById("video");
if ("快进" == btn_value){
// 获取当前播放进度
var current_pro = videoId.currentTime;
videoId.currentTime = current_pro + 10;
} else if ("暂停" == btn_value) {
videoId.pause();
runId.disabled = true;
var broad_btn = document.getElementById("current_run");
broad_btn.disabled = false;
} else if ("播放" == btn_value) {
videoId.play();
runId.disabled = true;
var stop_btn = document.getElementById("stop_run");
stop_btn.disabled = false;
} else if ("静音" == btn_value) {
videoId.muted = true;
runId.disabled = true;
btn_disabled = document.getElementById("close_voice");
btn_disabled.disabled = false;
} else if ("取消静音" == btn_value) {
videoId.muted = false;
runId.disabled = true;
var btn_disabled = document.getElementById("open_voice");
btn_disabled.disabled = false;
}
}
function screen_stop(){
// 获取媒体播放Id
var videoId = document.getElementById("video");
// 判断是否已暂停
if (videoId.paused) {
videoId.play();
} else {
videoId.pause();
}
}
/*----------------------------------兼容性解决方案---------------------------------------------*/
// 进入全屏
function requestFullScrren(){
var de = document.documentElement;
if (de.requestFullscreen) {
// W3C 提议
de.requestFullscreen();
} else if (de.mozRequestFullScreen) {
// Firefox 10+
de.moRequestFullScreen();
} else if (de.webkitRequestFullScreen) {
// Webkit (works in Safari5.1 and Chrome 15)
de.webkitRequestFullScreen();
}
}
// 退出全屏
function exitFullScreen(){
var de = document;
if (de.exitFullscreen) {
// W3C 提议
de.exitFullscreen();
} else if (de.mozCancelFullScreen) {
// Firefox 10+
de.mozCancelFullScreen();
} else if (de.webkitCancelFullScreen) {
// Webkit (works in Safari5.1 and Chrome 15)
de.webkitCancelFullScreen();
}
}
// 双击全屏
function double_click(){
if (requestFullScrren) {
requestFullScrren();
} else {
exitFullScreen();
}
}
// 自动加载默认配置(未完成)
/**function onload_property(){
// 获取媒体播放Id
var videoId = document.getElementById("video");
var file = new ActiveXObject("Scripting.FileSystemObject");
var inputStream = file.OpenTextFile("customvideo.properties");
var content = "";
while(!inputStream.atEndOfLine){
content + inputStream.readLine + "\n";
}
inputStream.close();
}
window.onload = onload_property;**/
</script>
</html>

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