about the video tag
poster= "loadbg.jpg" video cover
preload= "auto"
Xmuri Webkitlplay = "allow"
x5videovideo player type = "h5" enable H5 player, which is the wechat Android version feature
x5videovideo playerfullscreen= "true" full screen setting, set to true is the direction to prevent payment by the horizontal
x5videohouse player = "portraint" player. The default value is vertical
webkit-playsinline= "true". This property is set in ios 10 to allow video to be played in a small window, that is, it is not played in a small window.
playsinline= "true" IOS Wechat browser supports playback in a small window

however, it has been tested that x5copyright videoconference = "landscape" does not work on ios and still cannot be played horizontally. It works normally on Android

<video autoplay width="100%" controls x5-video-player-type="h5" x5-video-orientation="landscape" :src="url"></video>