How to guest people only see video of host, but guest video and audio should be disable automatically

I am using Jitsi Iframe API.
Host Config setting:
roomName: “roomname1”,
configOverwrite: {
startAudioOnly: 0 === 1,
defaultLanguage: “en”,
liveStreamingEnabled: true,
disableDeepLinking: true,
}

and guest Config setting is:
roomName: “roomname1”,
configOverwrite: {
defaultLanguage: “en”,
liveStreamingEnabled: true,
disableDeepLinking: true,
gatherStats: false,
resolution:“180”,
channelLastN: -1, // i can control this so thats why i am not using this
capScreenshareBitrate:0,
adaptiveSimulcast: false,
useBundle: true,
disableSimulcast: true,
webrtcIceTcpDisable: false,
}

How to hide guest video?