https://bugs.kde.org/show_bug.cgi?id=470950
Bug ID: 470950
Summary: OpenTimelineIO Project conversion failed
Classification: Applications
Product: kdenlive
Version: 23.04.1
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: User Interface
Assignee: j...@kdenlive.org
Reporter: flol...@mailbox.org
Target Milestone: ---
SUMMARY
Hello. I am not sure if this is a problem with my distro's packaging, with
OpenTimelineIO or with kdenlive.
When trying to use `File` -> `OpenTimelineIO Export`, I get the following error
message:
```
Traceback (most recent call last):
File "/usr/bin/otioconvert", line 33, in <module>
sys.exit(load_entry_point('OpenTimelineIO==0.15.0', 'console_scripts',
'otioconvert')())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/usr/lib/python3.11/site-packages/opentimelineio/console/otioconvert.py", line
243, in main
result_tl = otio.adapters.read_from_file(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/site-packages/opentimelineio/adapters/__init__.py",
line 137, in read_from_file
return adapter.read_from_file(
^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/site-packages/opentimelineio/adapters/adapter.py",
line 119, in read_from_file
result = self._execute_function(
^^^^^^^^^^^^^^^^^^^^^^^
File
"/usr/lib/python3.11/site-packages/opentimelineio/plugins/python_plugin.py",
line 153, in _execute_function
return (getattr(self.module(), func_name)(**kwargs))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/usr/lib/python3.11/site-packages/opentimelineio_contrib/adapters/kdenlive.py",
line 237, in read_from_string
raise RuntimeError("Can't find main tractor")
RuntimeError: Can't find main tractor
```
The timeline is one video track with one video clip and one audio track with a
dozen audio clips; it plays back fine and it also renders without problems.
Other, more complicated projects show the same behavior. It also fails when the
timeline just includes the one video clip.
STEPS TO REPRODUCE
1. Create a timeline with any content
2. File -> OpenTimelineIO export
3. Save as .edl or .xml or ...
OBSERVED RESULT
Error message "OpenTimelineIO Project conversion failed" appears with python
error message below.
EXPECTED RESULT
Being able to export the timeline in one of the offered formats.
SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.106.0
Qt Version: 5.15.9
ADDITIONAL INFORMATION
Installed package opentimelineio explicitly via pacman; current version is
0.15-3.
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