https://bugs.kde.org/show_bug.cgi?id=478134
Bug ID: 478134
Summary: Anim Audio: Timeline scrubbing pushing too much audio.
Classification: Applications
Product: krita
Version: 5.2.1
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Animation
Assignee: krita-bugs-n...@kde.org
Reporter: emmetoneill....@gmail.com
Target Milestone: ---
SUMMARY
When animation with audio, scrubbing (changing frames quickly via the timeline
time ruler header) pushes multiple frames of audio which can block the program
until the audio is processed.
This is usually a minor issue, but becomes worse with (a) lower playback
framerate and (b) lower playback speed.
Setting the animation to a low speed and framerate before scrubbing (with audio
attached) will push tens of seconds of audio, causing Krita to slow down until
it's all been played.
STEPS TO REPRODUCE
1. Open an animation
2. Attach some audio
3. Set low animation playback framerate.
4. Set low animation playback speed.
5. Scrub between frames on the timeline.
OBSERVED RESULT
Listen to a half minute of cow noises.
EXPECTED RESULT
We probably need to limit the rate of pushing audio based on the amount of time
a single frame of audio takes to play (considering both anim framerate and
speed).
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