<video id="myVideo" src="http://1011.hlsplay.aodianyun.com/demo/game.flv"></video>

Page({
  data: {},
  onLoad() {
    const videoCtx = tt.createVideoContext("myVideo");
    videoCtx.setWaterMark({
      color: "#FFFF11",
      success: () => {
        console.log("setWaterMark success");
      },
      fail: () => {
        console.log("setWaterMark fail");
      },
      complete: () => {
        console.log("setWaterMark complete");
      },
    });
  },
});