Merging files with sub-chapters does not work (formerly: Merge Chapters from existing M4B files)

[Yukigamine]

I'm using this tool for the first time, so I apologize if the feature exists and I missed it in the documentation, but I am attempting to merge two fully chapterized M4B files into a single file and the result ends up ignoring all of their chapters and creating two chapters no names and the timestamps of the two input files.

m4b-tool merge . --no-conversion --output-file=Title.m4b

The closest parameter I found was --no-chapter-reindexing but that just results in two chapters with slightly different names.

Is there any way to important the chapter tags from M4B files that are being merged?

I'm currently running the latest build from git in Docker on WSL2. Thanks!

[Yukigamine]

One other thing I noticed that may be a relic from #27 is that when using --no-conversion the "-tmpfiles" directory does not get cleaned up at the end of the process.

[sandreas]

I'll take a look in the next days.

[sandreas]

Which version are you using? Its working for me with the latest pre-release.

[Yukigamine]

Not sure why I didn't see the email about your reply, sorry for the delay.

I was using the latest code from GitHub as of 1 Feb built into a Docker container.

Running --version reports m4b-tool v.0.4.2.

I see you've made several commits in the last few weeks, so I can try rebuilding either from the latest pre-release or the latest source.

EDIT: I see 0.4.2 is the release from 2019. So that's not very useful. That being the case, I'm not sure how else to describe my version other than built from commit 1c33feb.

[Yukigamine]

Update: I figured out how to build from pre-release. I didn't realize I had to give a specific file/link in the docker build command.
I rebuilt on m4b-tool latest-127-gb61f0f8 but it's still not quite working right.

Not sure if there is a better way to show the chapters list, but I'm doing my best..
Part 1 file's chapters:

Part 2 file's chapters:

Output file:

What it looks like is happening is it is not offsetting the second file's chapters by the length of the first part. They'll all getting overlaid on top of each other. Because all of the chapter names are in there, just exactly where they would be if it were two separate files.

[sandreas]

Could you provide the full command line that you use?
m4b-tool merge ....

Then I can try to reproduce the problem. Thank you for your patience.

[Yukigamine]

Yep, sorry for the late response.

Full command I used was:
docker run -it --rm -v "C:\path\to\book":/mnt m4b-tool merge . --no-conversion --output-file="Book.m4b")

[sandreas]

Should be fixed in the latest pre-release (see #135). Feedback would be great.