Filter with out-timetamp only imported incorrectly

Bug
1

A filter with a end time set is saved into .mlt file correctly (filter 1,3,4 here):

<filter id="filter1" out="00:00:10.000">
  <property name="shotcut:filter">affineSizePosition</property>
</filter>
<filter id="filter2" in="00:00:10.000" out="00:00:20.040">
  <property name="shotcut:filter">affineSizePosition</property>
</filter>
<filter id="filter3" out="00:00:10.000">
  <property name="mlt_service">avfilter.hflip</property>
</filter>
<filter id="filter4" out="00:00:10.000">
  <property name="shotcut:filter">affineSizePosition</property>
</filter>

After opening the .mlt file again, the filters are created as if the end time was not set at all. A new save updates the file with end time of the filtered entity:

<filter id="filter1" out="00:00:20.320">
  <property name="shotcut:filter">affineSizePosition</property>
</filter>
<filter id="filter2" in="00:00:10.000" out="00:00:20.040">
  <property name="shotcut:filter">affineSizePosition</property>
</filter>
<filter id="filter3" out="00:00:20.320">
  <property name="mlt_service">avfilter.hflip</property>
</filter>
<filter id="filter4" out="00:00:20.320">
  <property name="shotcut:filter">affineSizePosition</property>
</filter>

Workaround: Issue does not happen when filter starts from the second frame. Adding in=“00:00:00.000” does not help.

2

Supply the steps in the UI and specify your version.

3

Sorry for missing the version information. It is 20.04.12 installed by snap on Ubuntu 16.04.

Steps in UI:

  • Apply two video track filters
  • In the Keyframes view, put the playhead to the middle of the track
  • For one filter select ‘Set filter end’
  • For the other filter select ‘Set filter start’
  • Verify that in the first part of the track the first filter is applied, in the second the other.
  • Save the project, close it.
  • Load the project again
  • Observe that in the first part of the track the first filter is applied, in the second part both filters are combined.
4

Thanks, this bug is specific to track filters. I hope to fix it for the next release.

5

I found another way to break the filter trim out point is to make any change to timeline that affects overall project/track duration.
This is fixed for the next version 20.06!

6

Many thanks for the fix!

Going forward with my project, I see that when a transition is in a track that has a size/position filter, it looks like a different filter values are applied during the transition. The picture jumps briefly. Is this known issue? Does it belong to quirks confirmed at Transitions are cancelling / not picking image filters ?