Since 5.3, BlackmagicMediaSource causes a memory leak. This didn't happen on 5.2.
You can see the leak on PIE.
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If "Just-In-Time Rendering" option in the MediaBundle is turned off, this memory leak seems to stop.
I checked this leak with MemPro and it shows the following callstuck causes the memory leak.
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-199330 in the post.
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Component | UE - Virtual Production - IO - Media |
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Affects Versions | 5.3 |
Target Fix | 5.4 |
Fix Commit | 30136400 |
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Main Commit | 30136415 |
Created | Oct 31, 2023 |
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Resolved | Dec 5, 2023 |
Updated | Feb 23, 2024 |