Max concurrent videos on screen

My apologies if this is documented somewhere and i didn’t see it. Is there any limit to the number of concurrent videos we can show simultaneously when using a custom UI? Right now it seems to work up to 34. If we have more than 34 on screen at once they seem to just be black vs showing the user’s video. This very well could be something in our code and i’m continuing to dig into it, but wanted to see if there was some known limit that we are hitting.

Thanks!

-stephen

Hi @stallent, thanks for the post.

The only limitation I am aware of is that the default meeting UI can only display up to 49 participants per page. In theory, if there were a limit on concurrent streams to one device, it should be no less than 49. The cap at 34 does not align with any restrictions I am aware of.

I’ll see if I can dig up additional information on this, but you definitely were not overlooking any documentation on this topic. :slightly_smiling_face:

Thanks!

@jon.lieblich thanks. its certainly odd. I’m certainly open to it being our code but I can’t find any errors being thrown or any other potential causes. Its very easy to drive. Lets say i have my window big enough to show 36 users (remote ones, not myself). The first 34 in and turn on video all show. The 35th and anyone above show just black screen but i get no errors. Then if a few people leave, if the ones that were black toggle their video off and back on, it then shows (as long as they become one of the 34 count). Would y’alls logs maybe show some error on that 35th user that isn’t being reported out to our code?

Hey @stallent,

Jon is out currently, so I will be taking over this thread until he returns.

Yes, I believe logs would help investigate this issue further. Would you be able to obtain the SDK logs after an instance of this issue, then send it in an email to developersupport@zoom.us so that we can investigate further?
Please provide a link to this post and/or mention my name in addition to providing your SDK version.

Thanks!
Michael

@Michael_Condon thank you! i"m actually trying to carve out the time to reproduce the issue in your sample app which should make it easier for you to track down. I hope to have that accomplished in the next day or so. While initially we thought it was our code (and still could be) its starting to feel more and more like an SDK issue which is why i wanna help get you clear proof.

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Hey @stallent,

That would be awesome if you could repro in the sample application. That makes things easier for us, and will speed up resolution time.

Thanks!
Michael