Vlad Hi Vlad, please find attached to this thread a video showing an easy to reproduce out-of-memory situation with streaming under the latest RC [Version 0.99.127.3.2-rc (WebKit 619.1.11.111.2) / Build date Jun 8 2024] on Mojave. While I don't see the issue with all video streaming with Orion on Mojave, this one is easy to reproduce and I have seen the same issue with this site streaming under more recent macOS, though at least an order of magnitude less significant. I thought this would be a good example since as you can see from the video of my streaming session, my system runs out of memory in less than 10 minutes streaming from this site:
https://www.classicartsshowcase.org/watch-classic-arts-showcase/
This is reproducible everytime with this site. Opening the same site on the same system in Safari (14.1.2) has no issue (it quickly consumes up to a GB of RAM but I can let it stream for hours without issue).
Memory usage really explodes after the 3:50 mark, but I included the video from pre-load through to close so you can the full cycle of the issue. Up until ~ 3:50 you can see memory usage gradually racheting up every 20-30 seconds.
As far as the recording I uploaded, I downsampled it to 540p and 3fps to keep the upload file small. However, I have the original 1080p/60 screen recording if higher framerate or resolution is needed.
If you can't reproduce on your Mojave test system within 10 minutes of streaming that link, let me know.
P.S.I have no idea why macOS's Activity Monitor shows individual process memory usage relatively low the entire time while system Memory and App Usage (and then Compressed) going up constantly.