https://bugs.kde.org/show_bug.cgi?id=490099
Bug ID: 490099
Summary: [Feature Request] Convert "Set Audio Reference / Align
Audio to Reference" to Multithreading
Classification: Applications
Product: kdenlive
Version: 24.05.1
Platform: Mint (Ubuntu based)
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Video Display & Export
Assignee: j...@kdenlive.org
Reporter: atomiccan...@gmail.com
Target Milestone: ---
SUMMARY
The "set audio reference" and "align audio to reference" appear to be single
threaded.
STEPS TO REPRODUCE
1. add two audio files to a KDEnlive project and place on separate audio
tracks
2. right click on one audio track and select "set audio reference"; observe the
process behavior so that the number of cores/threads can be observed; right
click on the other audio track and select "align audio to reference", again
observe the cores/threads involved
OBSERVED RESULT
A single core/thread is employed for each of the above activities
EXPECTED RESULT
As with video rendering, the audio processing time would be shortened by
multithreading
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Linux Mint 21.3, Cinnamon 6.0.4
ADDITIONAL INFORMATION
These audio functions use the KISS FFT library (see sourceforge) and I did not
find a multithreaded version of that, though FFTW (easily found) does have that
capability. It would probably be a large task to switch!
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