https://bugs.kde.org/show_bug.cgi?id=473078
Bug ID: 473078
Summary: Cannot render Timeline Preview when it reaches a title
Classification: Applications
Product: kdenlive
Version: 23.04.3
Platform: Flatpak
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: Video Display & Export
Assignee: j...@kdenlive.org
Reporter: rlacr...@insa-toulouse.fr
Target Milestone: ---
Created attachment 160780
--> https://bugs.kde.org/attachment.cgi?id=160780&action=edit
minimal reproducing example with a video, a color clip, an image and a title.
Only the title crashes the rendering
STEPS TO REPRODUCE
1. Open a file
2. put a title in the timeline
3. render the timeline preview.
OBSERVED RESULT
Whatever the selected profile is, the render stops immediately, with a message
I could not click on in the project on which I encountered the bug.
I managed to make a minimal reproducing file on which I had a clickable “show
details” giving me :
```
[h264_vaapi @ 0x7f1588201f80] Driver does not support some wanted packed
headers (wanted 0xd, found 0).[h264_vaapi @ 0x7f1588201f80] Driver does not
support packed sequence headers, but a global header is requested.[h264_vaapi @
0x7f1588201f80] No global header will be written: this may result in a stream
which is not usable for some purposes (e.g. not muxable to some
containers).[h264_vaapi @ 0x7f1578001f40] Driver does not support some wanted
packed headers (wanted 0xd, found 0).[h264_vaapi @ 0x7f1578001f40] Driver does
not support packed sequence headers, but a global header is
requested.[h264_vaapi @ 0x7f1578001f40] No global header will be written: this
may result in a stream which is not usable for some purposes (e.g. not muxable
to some containers).[h264_vaapi @ 0x7f1570001f40] Driver does not support some
wanted packed headers (wanted 0xd, found 0).[h264_vaapi @ 0x7f1570001f40]
Driver does not support packed sequence headers, but a global header is
requested.[h264_vaapi @ 0x7f1570001f40] No global header will be written: this
may result in a stream which is not usable for some purposes (e.g. not muxable
to some containers).[h264_vaapi @ 0x7f1568001f40] Driver does not support some
wanted packed headers (wanted 0xd, found 0).[h264_vaapi @ 0x7f1568001f40]
Driver does not support packed sequence headers, but a global header is
requested.[h264_vaapi @ 0x7f1568001f40] No global header will be written: this
may result in a stream which is not usable for some purposes (e.g. not muxable
to some containers).[h264_vaapi @ 0x7f1574026d40] Driver does not support some
wanted packed headers (wanted 0xd, found 0).[h264_vaapi @ 0x7f1574026d40]
Driver does not support packed sequence headers, but a global header is
requested.[h264_vaapi @ 0x7f1574026d40] No global header will be written: this
may result in a stream which is not usable for some purposes (e.g. not muxable
to some containers).
```
EXPECTED RESULT
No crash and full render of the preview, previewing is truly necessary once
effects start to pile up, especially for those with less powerful computers.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 36
KDE Plasma 5.27.4
KDE Frameworks Version 5.108.0
Qt Version 5.15.10
MLT Version 7.15.0
ADDITIONAL INFORMATION
CPU: AMD Ryzen 7 4700U with Radeon Graphics (8) @ 2.000GHz
GPU: AMD ATI 05:00.0 Renoir
Memory: 16Gigs
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