Fatal Error: Uncaught TypeError: Argument 3 passed to M4bTool\Chapter\ChapterMarker::guessChaptersBySilences() must be an instance of Sandreas\Time\TimeUnit about m4b-tool HOT 4 CLOSED

Thanks for reporting, I'll take a look in the next days :-)

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Ok, after analysing this, let me tell you first, that i was not able to reproduce the bug on my system, although i used the same command that you used.

But i at least have an idea of what could have gone wrong...

I think it is very weird because this command is not using the guessChaptersBySilences() function.

Well, that is not fully correct, since musicbrainz chapters are nearly never fully matching the silences in the audio file and the shift increases or decreases, the longer the duration of the file is. So the chapters command always performs a silence detection and tries to adjust the chapter position of the musicbrainz values. Within this silence detection there also is a length detection part, to boost performance and not having to detect the full length of the file with an extra command. And this length detection is failing in your case, which i suppose happens because of ffmpegs duration output to be not in the expected format. Since i've rewritten the whole length detection, there may be a solution.

I created a custom build (download link below) with extra detection and output - please try it with the following command:

m4b-tool chapters -v --merge-similar --first-chapter-offset 4000 --last-chapter-offset 3500 -m 969d83a3-e80c-4b47-895a-5b8a410836bd "/mnt/d/Download/Star Wars Erben des Imperiums Hörbuch (Band 1).m4b"

There should be an output line like...:

found %s musicbrainz chapters and %s silences within length %s

Best case szenario: Error is gone and it works ;) But i think there might also be a problem with --merge-similar for your files.

m4b-tool.zip - custom build for chapters

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Wow...it just worked. No errors. Thanks :).
When will you release it?

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Cool, i'm glad it works for you.

When will you release it?

Since m4b-tool is a one man show freetime project unfortunately there is no such thing like release management or fixed release dates. For the next release I plan to rework a few things and throw away duplicated code... therefore it will take some time, but as the version in the link above does not contain any other changes than fixing this issue, you can use it as "stable".

I'll commit the changes this week and mark the bug as fixed.

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