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Stuttering issue

MartialMartial
in MAIN

Hello,

I am experiencing a stuttering / freeze when playing videos. Unfortunately it is quite random and unpredictable. Things can go well for several hours and suddenly starts lagging. All i can say is :

  • videos are H264
  • videos are quite high resolution like 10000 x 1080
  • latest Millumin v5
  • experienced the issue on macmini M1 and MacPro M2 Ultra under macOS Tahoe
  • Sending the video over the network via NDI
  • tried different locations in the building (source and destination)
  • Never had this issue several months ago with the exact same setup (macOS was upraded since though)

I tried to transcode to HAP once when the issue happened and it worked but as the issue is random i can't tell if this solved it or if i was lucky...

Anyone experiencing such an issue ?

Comments

  • MartialMartial

    PS :

    To solve the issue i just have to quit fullscreen mode and go back to fullscreen.

  • ectoplasmosisectoplasmosis

    Use ProRes for video playback; H.264 and HAP are poorly-optimised codecs on Apple Silicon.

    However, if you are using NDI for sending and receiving the video, the stuttering is likely due to network issues rather than playback.

  • MartialMartial

    hi thanks.

    I will have a look with your suggestions. But i am not sure the issue has to do with the network. Everything was working flawlessly 5 months ago with the exact same setup. My network is a 10G optimized for NDI. As for codecs i have always primarily used H264 and HAP / ProRes when needed.

    When Millumin freezes i had a look in the ressources monitor and everything (SSD, CPU, GPU, Network) was way below the limit as usual.

  • ectoplasmosisectoplasmosis

    Is the NDI stream freezing/stuttering, or is it the actual playback on the source machine? If it's the NDI stream, then you have a network issue.

    Regardless, as mentioned, H.264 and HAP are very poor choices of codec for Apple Silicon machines. Always use ProRes as best-practice.

  • MartialMartial

    No this is Millumin source freezing. Going fuulscreen back and forth fixes the issue until the next happen.

    Noted for codecs, i'll try to change my recommended setup.

  • m_theaterm_theater

    I had a similar problem

    fullscreen on second screen, then i changed the foreground application on the main screen (millumin) to notes. And after a while millumin startet to stutter.

    I guess it is a macos ressource optimisation, even when the fullscreen is activated.

  • MilluminMillumin

    Hello @Martial,

    I think using H264 codec for big resolution (such as 10000 x 1080) is not ideal. It takes a lot of resources to decode H264.

    Anyway, did you see the lags in Millumin's interface ?

    Could you share your project (just the .millumin file) ?

    Best. Philippe

  • MartialMartial

    Hey,

    Yes the lag is showing in Millumin.

    i can share a project next week but really it is really basic, only a video loaded on a layer and output to NDI, that's all

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