Bug 418894

Summary:	Feature request: keyframeable speed effect
Product:	[Applications] kdenlive	Reporter:	CzAndrew <hello>
Component:	Video Effects & Transitions	Assignee:	Vincent PINON <vpinon>
Status:	RESOLVED FIXED
Severity:	wishlist	CC:	fritzibaby, isaac, julius.kuenzel
Priority:	NOR	Flags:	fritzibaby: Brainstorm+
Version First Reported In:	19.12.3
Target Milestone:	---
Platform:	Other
OS:	All
Latest Commit:		Version Fixed In:	21.08
Sentry Crash Report:

Description CzAndrew 2020-03-15 18:39:02 UTC

SUMMARY
I would like to have a feature request: keyframeable speed effect. For example, the clip on the timeline would start at 100% playback speed, and continously would speed up to 200%.
This effect can be used when only a part of a videoclip would be played faster, but the transition would be smooth: first clip: 100%; second: 100%->200%; third: 200%; fourth: 200%->100%; fifth: 100%...
As I know this effect can only be done if I would cut the clip into lots of parts, and apply the speed effect one by one... which would be really time consuming.

Comment 1 emohr 2020-03-22 18:38:16 UTC

I change it to wishlist. Implementation depends on MLT framework on which Kdenlive relay.

Comment 2 emohr 2020-04-04 16:44:24 UTC

see https://bugs.kde.org/show_bug.cgi?id=417958

Comment 3 Julius Künzel 2021-02-21 13:57:36 UTC

*** Bug 417958 has been marked as a duplicate of this bug. ***

Comment 4 Julius Künzel 2021-08-14 08:42:20 UTC

Thanks for your feature request! I am glad to tell you that the new version 21.08 comes with a time remapping feature which is almost what you are requesting. The release notes with a description of the feature will probably be available next week on https://kdenlive.org
I am closing this report now. Feel free to open a new one if you are facing bugs while using the new feature.