https://bugs.kde.org/show_bug.cgi?id=498870
Bug ID: 498870
Summary: Importing subtitles file (*.ass) does not import all
subtitles on timestamp conflicts
Classification: Applications
Product: kdenlive
Version: 24.12.0
Platform: Other
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Title Clips & Subtitles
Assignee: j...@kdenlive.org
Reporter: catalinanas...@gmail.com
Target Milestone: ---
Created attachment 177521
--> https://bugs.kde.org/attachment.cgi?id=177521&action=edit
The subtitles file
SUMMARY
When importing an external .ass file, some of the subtitles are not brought
into the Kdenlive project.
This can happen when the file contains multiple subtitles that have the same
StartTime timestamp.
The attached subtitles file ("karaoke-subtitles.ass") has been identified to
present this behaviour.
STEPS TO REPRODUCE
1. Create an empty Kdenlive project
2. Set timeline cursor position at 00:00:00
3. Go to Project > Subtitles > Import Subtitle File...
4. Browse for "karaoke-subtitles.ass" file
5. Check "Import at timeline cursor position"
6. Press "OK"
7. Play the empty video with imported subtitles
OBSERVED RESULT
- During the first 15 seconds, three subtitles are displayed, being formatted
and positioned differently
- During the rest of the empty video, any Korean subtitle has its corresponding
English subtitle displayed underneath it
EXPECTED RESULT
- During the first 15 seconds, only the first subtitle in the .ass file is
displayed
- During the rest of the empty video, every Korean subtitle is lacking its
corresponding English subtitle displayed underneath it
SOFTWARE/OS VERSIONS
Windows: 11 Enterprise
ADDITIONAL INFORMATION
It looks like only StartTime is taken into account when importing the
subtitles.
When two subtitles have different StartTime, but same EndTime, the subtitles
are imported correctly.
This behaviour (importing multiple subtitles with same StartTime) is crucial
when creating Karaoke videos.
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