https://bugs.kde.org/show_bug.cgi?id=500588
Bug ID: 500588
Summary: Implement multithreading for rendering
Classification: Applications
Product: kdenlive
Version: 24.12.2
Platform: Microsoft Windows
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Rendering & Export
Assignee: j...@kdenlive.org
Reporter: bugs.kde....@timwi.de
Target Milestone: ---
SUMMARY
Rendering a video currently appears to be single-threaded.
OBSERVED RESULT
On my 8-core CPU (and no GPU), the rendering process uses about 10–12% CPU
(i.e. close to 1/8th) according to both Task Manager and Process Hacker.
EXPECTED RESULT
I understand that encoding the video itself (handled by ffmpeg) is not easily
multithreadable. However, the rendering of frames which employ graphics
effects/filters can be multithreaded by rendering frames in advance before
sending them off to ffmpeg.
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