```javascript
WXAPI.videoDetail(videoId)
```
+ videoId The video number of the video uploaded by the background video on demand service
```json
{
"code": 0,
"data": {
"coverUrl": "http://video.it120.cc/snapshot/c4c6e38eeb3a428e80f1a8b32c6de58700002.jpg",
"dateAdd": "2018-01-03 13:41:49",
"dateUpload": "2018-01-03 13:42:55",
"fdM3u8": "http://video.it120.cc/c4c6e38eeb3a428e80f1a8b32c6de587/854b25ccf48b4e67ad8a1c691e32a9b5-23ed88f2a1a26984ec60a497bcc1d316.m3u8",
"fdMp4": "http://video.it120.cc/c4c6e38eeb3a428e80f1a8b32c6de587/854b25ccf48b4e67ad8a1c691e32a9b5-699a80a29a15c59c9d0868389f86cc3f.mp4",
"ldM3u8": "http://video.it120.cc/c4c6e38eeb3a428e80f1a8b32c6de587/854b25ccf48b4e67ad8a1c691e32a9b5-4b6ffae84f2e1d243955ecaedcf11a3e.m3u8",
"ldMp4": "http://video.it120.cc/c4c6e38eeb3a428e80f1a8b32c6de587/854b25ccf48b4e67ad8a1c691e32a9b5-5287d2089db37e62345123a1be272f8b.mp4",
"size": 2438178,
"sizeStr": "2.33 MB",
"title": "50010224001.mp4",
"type": 0,
"videoId": "c4c6e38eeb3a428e80f1a8b32c6de587"
},
"msg": "success"
}
```
+ coverUrl cover picture
+ title video title
+ size capacity (unit is bytes, sizeStr is the capacity after formatting)
+ fdMp4 video address of the process, mp4 format
+ ldMp4 standard definition smooth address, mp4 format
+ fd_m3u8 smooth video address, m3u8 format
+ ld_m3u8 SD smooth address, m3u8 format
+ dateAdd upload time