Disable participant video

I have made participant_video as false from API while creating meeting.

Now , How to disable participant video by default while joining meeting?
My angular code like below
this.ngZone.runOutsideAngular(() => {
ZoomMtg.init({
leaveUrl: this.leaveUrl,
patchJsMedia: true,
success: (success: any) => {
console.log(success)
ZoomMtg.join({
signature: signature,
sdkKey: this.sdkKey,
meetingNumber: this.meetingNumber,
passWord: this.passWord,
userName: this.userName,
userEmail: this.userEmail,
tk: this.registrantToken,
zak: this.zakToken,
success: (success: any) => {
console.log(success)
},
error: (error: any) => {
console.log(error)
}
})
},
error: (error: any) => {
console.log(error)
}
})
})