Opened 2 months ago
Closed 2 months ago
#10897 closed defect (duplicate)
Assertion best_input >= 0 failed at fftools/ffmpeg_filter.c:1909
| Reported by: | Andreas | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | undetermined |
| Version: | unspecified | Keywords: | |
| Cc: | Andreas | Blocked By: | |
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Summary of the bug:
I use a quite complicated filter expression to extract parts of a video and time-stretch these parts. It works fine with ffmpeg 4.0.2, but no longer in 6: 6.1 release loops forever and a recent build from master throws the above assertion error.
How to reproduce:
Run the commandline found in the log files - it is always the same command. I provide log files for 4.0.2 where it works, for 6.1 where I terminate the infinite loop via Ctrl+C after 10 minutes or so, and master with the assertion error.
The problem is not related to the input video, I tried the same commandline with different videos, the result is always the same. For completeness you find one of the videos here: https://a-voss.de/ffmpeg/
It is also not platform dependent, I tried in Windows and Linux.
Attachments (5)
Change History (6)
by , 2 months ago
| Attachment: | ffmpeg-4.0.2.log.gz added |
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by , 2 months ago
| Attachment: | ffmpeg-4.0.2-console.log.gz added |
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by , 2 months ago
| Attachment: | ffmpeg-6.1.log.gz added |
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by , 2 months ago
| Attachment: | ffmpeg-master.log.gz added |
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What was printed to the console