https://bugs.kde.org/show_bug.cgi?id=445214
Bug ID: 445214
Summary: OpenTimelinIO Export/Import Fails: OTIO kdenlive/mlt
adapter is out of date>
Product: kdenlive
Version: 21.08.2
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Video Display & Export
Assignee: j...@kdenlive.org
Reporter: david.johanna...@gmail.com
Target Milestone: ---
Created attachment 143376
--> https://bugs.kde.org/attachment.cgi?id=143376&action=edit
error dialog
SUMMARY
Based on the output from kdenlive OpenTimelineIO export dialog, and the
referenced line in the adpaters.py file, it appears the support for kdenlive in
OTIO is out of date. Is this the right place to raise this issue?
STEPS TO REPRODUCE
1. Set up a project; import footage
2. Assemble footage in timeline
3. Select File > OpenTimelinIO Export
OBSERVED RESULT
Project conversion failed:
Traceback (most recent call last):
File "/usr/bin/otioconvert", line 33, in <module>
sys.exit(load_entry_point('OpenTimelineIO==0.13.0', 'console_scripts',
'otioconvert')())
File
"/usr/lib/python3.9/site-packages/opentimelineio/console/otioconvert.py", line
226, in main
result_tl = otio.adapters.read_from_file(
File "/usr/lib/python3.9/site-packages/opentimelineio/adapters/__init__.py",
line 140, in read_from_file
return adapter.read_from_file(
File "/usr/lib/python3.9/site-packages/opentimelineio/adapters/adapter.py",
line 131, in read_from_file
result = self._execute_function(
File
"/usr/lib/python3.9/site-packages/opentimelineio/plugins/python_plugin.py",
line 174, in _execute_function
return (getattr(self.module(), func_name)(**kwargs))
File
"/usr/lib/python3.9/site-packages/opentimelineio_contrib/adapters/kdenlive.py",
line 76, in read_from_string
for maintrack in maintractor.findall('track'):
AttributeError: 'NoneType' object has no attribute 'findall'
EXPECTED RESULT
fcpxml compatible xml file
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: 21.08.2
(available in About System)
KDE Plasma Version:
KDE Frameworks Version:
Qt Version:
ADDITIONAL INFORMATION
The OTIO adapter script talks about a "global_feed" tractor which does not
appear in the kdenlive xml file.
def read_from_string(input_str):
"""Read a Kdenlive project (MLT XML)
Kdenlive uses a given MLT project layout, similar to Shotcut,
combining a "main_bin" playlist to organize source media,
and a "global_feed" tractor for timeline.
(in Kdenlive 19.x, timeline tracks include virtual sub-track, unused for
now)"""
mlt, byid = ET.XMLID(input_str)
profile = mlt.find('profile')
rate = (float(profile.get('frame_rate_num'))
/ float(profile.get('frame_rate_den', 1)))
timeline = otio.schema.Timeline(
name=mlt.get('name', 'Kdenlive imported timeline'))
maintractor = mlt.find("tractor[@global_feed='1']")
for maintrack in maintractor.findall('track'):
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