If activated rendering crashes imediately.
Just verified multiple times, after disabling export of chapter everything works fine again.
Exporting chapters in Davinci Resolve 20.2 fails during invalid chapter start
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Vouk
13. September 2025 um 19:59 Hat das Thema freigeschaltet. -
- Offizieller Beitrag
Please remove the first chapter:
Code2025-09-13 19:47:19 (trace) [FFmpeg:0] Chapter #0:0: 2025-09-13 19:47:19 (trace) [FFmpeg:0] start 0.000000, 2025-09-13 19:47:19 (trace) [FFmpeg:0] end 0.000000 2025-09-13 19:47:19 (trace) [FFmpeg:0] Metadata: 2025-09-13 19:47:19 (trace) [FFmpeg:0] title : 2025-09-13 19:47:19 (trace) [FFmpeg:0] Marker 1 -
Thank you for the fast response.
Just tried it two times, still got error
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I guess, the end time with "0" is invalid, there has to be the end of video file or the start of next chapter. But zero might be invalid.
Example:
Actually Voukoder sets it to:
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- Offizieller Beitrag
The error was:
Code2025-09-13 19:47:19 (trace) [FFmpeg:0] Invalid chapter start (126280000000) or end (0). 2025-09-13 19:47:19 (error) [OutputNode.cpp:201] Unable to write format header. 2025-09-13 19:47:19 (error) [Router.cpp:161] Open phase failed: -11The chapter data was:
Code
Alles anzeigen2025-09-13 19:47:19 (trace) [FFmpeg:0] Chapters: 2025-09-13 19:47:19 (trace) [FFmpeg:0] Chapter #0:0: 2025-09-13 19:47:19 (trace) [FFmpeg:0] start 0.000000, 2025-09-13 19:47:19 (trace) [FFmpeg:0] end 0.000000 2025-09-13 19:47:19 (trace) [FFmpeg:0] Metadata: 2025-09-13 19:47:19 (trace) [FFmpeg:0] title : 2025-09-13 19:47:19 (trace) [FFmpeg:0] Marker 1 2025-09-13 19:47:19 (trace) [FFmpeg:0] 2025-09-13 19:47:19 (trace) [FFmpeg:0] Chapter #0:1: 2025-09-13 19:47:19 (trace) [FFmpeg:0] start 126.280000, 2025-09-13 19:47:19 (trace) [FFmpeg:0] end 0.000000 2025-09-13 19:47:19 (trace) [FFmpeg:0] Metadata: 2025-09-13 19:47:19 (trace) [FFmpeg:0] title : 2025-09-13 19:47:19 (trace) [FFmpeg:0] Marker 2 2025-09-13 19:47:19 (trace) [FFmpeg:0] 2025-09-13 19:47:19 (trace) [FFmpeg:0] Chapter #0:2: 2025-09-13 19:47:19 (trace) [FFmpeg:0] start 644.680000, 2025-09-13 19:47:19 (trace) [FFmpeg:0] end 0.000000 2025-09-13 19:47:19 (trace) [FFmpeg:0] Metadata: 2025-09-13 19:47:19 (trace) [FFmpeg:0] title : 2025-09-13 19:47:19 (trace) [FFmpeg:0] Marker 3 2025-09-13 19:47:19 (trace) [FFmpeg:0] 2025-09-13 19:47:19 (trace) [FFmpeg:0] Chapter #0:3: 2025-09-13 19:47:19 (trace) [FFmpeg:0] start 1381.280000, 2025-09-13 19:47:19 (trace) [FFmpeg:0] end 0.000000 2025-09-13 19:47:19 (trace) [FFmpeg:0] Metadata: 2025-09-13 19:47:19 (trace) [FFmpeg:0] title : 2025-09-13 19:47:19 (trace) [FFmpeg:0] Marker 4 2025-09-13 19:47:19 (trace) [FFmpeg:0] 2025-09-13 19:47:19 (trace) [FFmpeg:0] Chapter #0:4: 2025-09-13 19:47:19 (trace) [FFmpeg:0] start 1860.600000, 2025-09-13 19:47:19 (trace) [FFmpeg:0] end 0.000000 2025-09-13 19:47:19 (trace) [FFmpeg:0] Metadata: 2025-09-13 19:47:19 (trace) [FFmpeg:0] title : 2025-09-13 19:47:19 (trace) [FFmpeg:0] Marker 5 2025-09-13 19:47:19 (trace) [FFmpeg:0] 2025-09-13 19:47:19 (trace) [FFmpeg:0] Chapter #0:5: 2025-09-13 19:47:19 (trace) [FFmpeg:0] start 2562.360000, 2025-09-13 19:47:19 (trace) [FFmpeg:0] end 0.000000 2025-09-13 19:47:19 (trace) [FFmpeg:0] Metadata: 2025-09-13 19:47:19 (trace) [FFmpeg:0] title : 2025-09-13 19:47:19 (trace) [FFmpeg:0] Marker 6 -
This might be the problem, chapter end time is zero on every marker.
The example on my previous post shows that there must be some value greater as, at least, the start of the actual chapter.
End time can not be lower as it`s start time.
I think ffmpeg does not like that. -
- Offizieller Beitrag
I'll check this tomorrow.
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Thank you!
Another example points it out too, end time has to be be greater as start time and as maximum the start of the next chapter or video end time.
