The garbage collector runs every 5 seconds after MediaSource is attached to HTMLVideoElement

Web App Development
1

Hello,

There is a discussion on an old forum:

We also are experincing FPS drops in our application after MediaSource is attached to HTMLVideoElement. Affected TVs: 43UN7300PUF(4.40.76) and older models.
The test application from the discussion also causes FPS drops every 5 seconds (can be observed on a tv screen).

In our case - after MSE attachment - the second GC call is added after the first one blocking the rendering for ~250ms, while it collects 0 bytes, according to Profiler.

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Can something be done about this issue? Maybe, there are some undocumented options to disable this GC via appinfo.json? Thanks.

2

Please check your memory usage first. We recommend less than 250MB. Thank you.

3

Thanks for the reply. Usage of memory in our app never exceeds 180 Mb. Measurement were done using ares-cli: ‘ares-device-info -d DEVICE -r -l -s app.csv -t 1’

4

Please email us the following at developer@lge.com:

  • Test video showing the issue
  • Your app .ipk file
  • Steps to reproduce the issue

And the following information of your test device are also required. (You can check this in the Settings > General > About This TV.)

  • TV model name:
  • TV software version:
  • webOS TV version: (This can be found when you click the TV model name in the About This TV menu.)
  • Region:
5

We’re experiencing the exact issue. Even with a empty MediaSource, we can reproduce it.
A minimal demo page: https://p98pcw.csb.app/

6

Please email us the following at developer@lge.com:

  • Test video showing the issue
  • Your app .ipk file
  • Steps to reproduce the issue

And the following information of your test device are also required. (You can check this in the Settings > General > About This TV.)

  • TV model name:
  • TV software version:
  • webOS TV version: (This can be found when you click the TV model name in the About This TV menu.)
  • Region: