VideoLayer

A videoLayer loads a video. VideoLayers have a layer.player object to control the video. The browser supports many different types of video, including the Animation codec that supports alpha channels.
译：一个videolayer加载视频。videolayers有layer.player对象来控制视频。浏览器支持许多不同类型的视频，包括支持阿尔法通道的动画编解码器。