#10181: Imprecise seeking in mp4 generated by ffmpeg.
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Reporter: Dale Curtis | Owner: (none)
Type: defect | Status: closed
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution: invalid
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by Balling):
* status: new => closed
* resolution: => invalid
Comment:
That video has 6 keyframes, ffmpeg.exe -i output.mp4 -vf
"select=eq(pict_type\,I)" -vsync vfr thumbnails-%02d.png
will extract all keyframes, and thumbnails-02.png has 00:00:10:10. That
keyframe has best_effort_timestamp_time=10.000000 indeed. That is coded
picture number = 250 (counting from 0, not 1). Open in YUView shows that
250 frame from 0 is 00:00:10:10.
That means your generated timestamp in the video is wrong, i.e. you use 25
fps video yet the timecode is for 24 fps.
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Ticket URL: <https://trac.ffmpeg.org/ticket/10181#comment:1>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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