src/js/big-play-button.js封面播放按钮
constructor
src/js/prgress-bar.js
videojs.getPlayers = 获取播放器videojs.registerComponent = 注册组件videojs.registerPlugin = 注册插件
component
extend
src/js/post-image.js封面图
src/js/component.js
src/js/menu.js
src/js/player.js
src/js/clickable-component.js
fullscreen-toggleplay-toggle...
src/js/control-bar/control-bar.js控制按钮
src/js/video.js
src/js/volumn-control.js
