Bug 365072

Summary:	Disappearing transitions back in git master
Product:	[Applications] kdenlive	Reporter:	farid <snd.noise>
Component:	Video Effects & Transitions	Assignee:	Vincent PINON <vpinon>
Status:	RESOLVED FIXED
Severity:	major	CC:	jb, wegwerf-1-2-3
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description farid 2016-07-04 13:40:40 UTC

This is a report based on a forum topic:
https://forum.kde.org/viewtopic.php?f=279&t=133663

The problem (in the post June 10 refactored builds) of transitions disappearing when you try to resize them smaller has returned.

https://quickgit.kde.org/?p=kdenlive.gi ... 30da4f74ec fixed this bug a few weeks ago, but now it's back. A quick search of the source from my last build (june 30, last commit https://quickgit.kde.org/?p=kdenlive.gi ... 082c56c152 "Fix corruption on insert with grouped clips" shows the code added with the last fix for this is still present, but the problem is now back anyway. 


Reproducible: Always

Comment 1 farid 2016-07-05 21:44:02 UTC

Here is more info the guy posted:

Kdenlive: GIT master 6-29-2016

MLT: 6.2.0 from GIT master 4-22-2016 (will try newer version shortly)

Movit enabled, using 1.3.2

Processor is AMD FX 8120

Expected results: Transition resizable from either direction, holding selected length when right mouse button released.

Actual results: Resize works fine when resizing from the right, but when resizing from the left the transition disappears when the right mouse button is released. Sometimes a crash follows

Further timeline corruption: Once a transition has disappeared, any attempt to move either clip will cause it to display twice rather than move. Won't be saved that way though,

To duplicate:

1: Open kdenlive, place two clips on the timeline with any overlap

2: make a transition between those clips

3: resize that transition in either direction from the right, it works.

4: Resize that same transition from the left, it disappears as soon as you release the mouse button.
Kdenlive might crash right here but usually does not.

5: same results if you only try to resize from the left, having not touched the right side.

6: attempt to move either clip involved, it will now appear twice.


Unfortunately I've had little luck working with GDB.

Comment 2 Jean-Baptiste Mardelle 2016-07-13 19:19:17 UTC

Git commit 2c034ca0ec39d4debf1865514ba92b57c54bbe85 by Jean-Baptiste Mardelle.
Committed on 13/07/2016 at 19:19.
Pushed by mardelle into branch 'master'.

Fix crash / corruption on resize transition start

M  +1    -2    src/doc/documentvalidator.cpp
M  +1    -11   src/renderer.cpp
M  +58   -56   src/timeline/managers/resizemanager.cpp
M  +2    -2    src/timeline/transitionhandler.cpp

http://commits.kde.org/kdenlive/2c034ca0ec39d4debf1865514ba92b57c54bbe85

Comment 3 Wegwerf 2016-07-30 11:15:42 UTC

Hi Farid, bug still present...?

Comment 4 farid 2016-07-31 01:26:02 UTC

this isn't my report, i reposted it for some in the forum. i will mark it as fixed since jb seems to have worked on it.