Bug 357053

Summary: Fade from Black as Track effect doesn't work, has value 0, can't be deleted
Product: [Applications] kdenlive Reporter: qubodup
Component: Video Effects & TransitionsAssignee: Vincent PINON <vpinon>
Status: RESOLVED DUPLICATE    
Severity: normal CC: wegwerf-1-2-3
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description qubodup 2015-12-22 16:03:59 UTC 
kdenlive-git 15.12.0.r6719.1443863-1
mlt-git r4152.v0.9.2.374.g6b518f5-1

Steps to reproduce:
1. Start kdenlive
2. Import video
3. Add video to track
4. Add fade from black effect to track,
5. Look at properties
6. Change duration to 10 seconds
7. Click in the timeline, Play back track, click on track
8. delete the effect

Expected result:
5. -> duration has the default value
7. -> The first 10 seconds of each track are fading from black, shorter clips either don't fade or fade, with the value reduced to the clip length. Track effect has duration 10s.
8. -> effect gets deleted

Actual result:
5. -> duration is 0
7. -> in properties, duration resets to 0, fade appears to not work, the entire clip seems to be black or fade
8. -> effect doesn't get deleted, however you can save, close, reload and it will be gone.

Alternatively, the ability to add the effect to tracks could be disabled.

Video:
https://youtu.be/CkvgeWcV7ig
Comment 1 Wegwerf 2016-08-05 18:17:54 UTC 
Qubodup, I've just tried with recent beta 16.07.90: at least you can now delete the effect from the track. However, you can't change its default value using the slider, only using the frame spin box. In addition, it blacks the complete track.
Comment 2 Vincent PINON 2016-08-20 21:03:03 UTC 
Fade is actually a keyframed luminance, and all keyframed effects fail on tracks

*** This bug has been marked as a duplicate of bug 363032 ***