https://bugs.kde.org/show_bug.cgi?id=369479
Bug ID: 369479
Summary: git master: moving keyframes of a transition sometimes
does not update the animated transition parameters
correctly
Product: kdenlive
Version: 16.08.0
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: Effects & Transitions
Assignee: vpi...@kde.org
Reporter: wegwerf-1-...@gmx.de
This is a difficult bug, but one that really is annoying. Assume a transition
of length 6:00 with four keyframes at 0:00, 0:12, 5:12, and 5:24. Alpha is 0%,
100%, 100%, then 0% -- a classic fade.
You can trigger this bug only when after you've edited the keyframes of a
transition for the first time, doing other work, then selecting the transition
again. Now, you have some keyframes somewhere in the middle of the transition.
Next, *shorten* the transition several frames. Then move the keyframes forward,
towards the end of the transition.
Notice that while the alpha parameter is correctly animated, the project
monitor still shows the old situation before you moved the keyframes. It seems
that Kdenlive does not correctly update the animated parameters of the MLT
transition object, only its animated dialog parameters get updated.
If you now resize the transition to be longer, then the sync seems to be occur.
However, resizing a transition to make it shorter seems to put the UI dialog
out of sync with the MLT parameters.
Reproducible: Always
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