HTML Audio / Video DOM videoTracks property
HTML Audio / Video DOM Reference
Examples
Get the number of available video tracks:
myVid=document.getElementById("video1");
alert(myVid.videoTracks.length);
alert(myVid.videoTracks.length);
try it"
Definition and Usage
videoTracks property returns VideoTrackList object.
VideoTrackList object represents video available video tracks.
Each available video track by VideoTrack object represents.
Browser Support
All major browsers do not support videoTracks property.
grammar
video .videoTracks
return value
类型 | 描述 |
---|---|
VideoTrackList 对象 | 表示视频的可用视频轨道。 VideoTrackList 对象:
注释:第一个可用 VideoTrack 对象的下标 index 是 0。 |
VideoTrack 对象 | 表示一个视频轨道。 VideoTrack 对象的属性:
|
HTML Audio / Video DOM Reference