Screenshare - File Sharing Audio / Video gets Choppy at times

We would like to share some pre-recorded video from host to all the attendee in the live session / meeting. However, we have noticed that when user share it screen with (computer sound) and play specific pre-recorded video than the audio at times becomes choppy or there is a certain lag in the video that is transmitting via screen share.

Do we have any other way available to playing the pre-recorded video during the live session using the Zoom SDK?

Which version?
iOS SDK Version: v4.4.57220.1211

To Reproduce
Steps to reproduce the behavior:

  1. Go to Zoom App and create the meeting from Mac / Windows Machine
  2. Join the meeting from Mobile Device by given MeetingID / Meeting URL
  3. Now host will start the screen share and allow the computer sound to transmit to attendees in the session
  4. Now host should play the sample movie or pre-precorded video from Quicktime or any video stored locally in the machine.
  5. Now experience the certain lag in video and at times the audio becomes choppy.

No Screenshot available for this issue.

Smartphone (please complete the following information):

  • Device: iPhone 8
  • OS: iOS
  • Version: 13.2.3

Hi usman.awan,

Thanks for using Zoom SDK. When you start sharing on the desktop clients, please make sure that the following option has been checked:

Please note that since the bandwidth is limited and the totally quality is highly impacted by the network status, if the “Optimize Screen Share for Video Clip” is checked, the resolution might be dropped a little bit, and it is expected.

Hope this helps. Thanks!

1 Like

Thanks Carson,

I have selected both options share computer sound and optimize screenshare for video clip and it’s relatively much better audio but the video still lags a bit. I can understand it’s been streamed over the network through host so there will be certain lag in transmission.

Is there any other alternative way Zoom SDK does provide like streaming / broadcasting the video or pre-recorded video that is hosted on any CDN provider?


Hi Usman,

Thanks for the reply. If the video is pre-recorded and available online, if just playing the video is an option, you could leverage native media player or open the video in a browser. Other than this, there is no better way to optimize this at the moment.