Bug 409159 - Fade from black - effect jumps forward after trimming and changing speed
Summary: Fade from black - effect jumps forward after trimming and changing speed
Status: RESOLVED FIXED
Alias: None
Product: kdenlive
Classification: Applications
Component: User Interface & Miscellaneous (other bugs)
Version First Reported In: 19.04.2
Platform: Ubuntu Linux
: NOR normal
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-06-25 06:01 UTC by ITicDigger
Modified: 2019-06-26 07:14 UTC (History)
0 users

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description ITicDigger 2019-06-25 06:01:05 UTC
SUMMARY
If you cut the beginning and end of the clip, add fade in black and fade from black, then increase the speed to 150%, then the fade from black moves about 5 seconds ahead of the start. That is, the video will start without fade in but then after some time it will darken and go again. 
Does not work on too short clips! It is necessary that the length of the clip after acceleration was not less than 30 seconds.

STEPS TO REPRODUCE
1. Trim the beginning and end of the clip.
2. Add Fade From Black and Fade To black with dots in the corners of the clip on the timeline.
3. Increase clip speed up to 150%

OBSERVED RESULT
Fade from black will not work where it should be, but in about 3 seconds the video will darken for a short time.

EXPECTED RESULT
Obviously not this

SOFTWARE/OS VERSIONS
Ubuntu Studio 18.04.2 x64
kdenlive-19.04.2f-x86_64.appimage

Always happens
Comment 1 Jean-Baptiste Mardelle 2019-06-26 07:14:11 UTC
Git commit 33dc4d069267d1216ad5467bc627d48a49629c67 by Jean-Baptiste Mardelle.
Committed on 26/06/2019 at 07:13.
Pushed by mardelle into branch 'Applications/19.04'.

Fix fades broken on speed change.

M  +1    -0    src/timeline2/model/clipmodel.cpp

https://invent.kde.org/kde/kdenlive/commit/33dc4d069267d1216ad5467bc627d48a49629c67