It seems that Mp3tag still doesn't support ID3v2 chapter marks? I tried to edit a mp3 format file which can show chapters in Antenna Pod (for Android) but found nothing related in the Extend Tags view.
References
id3v2-chapters-1.0 - ID3.org
Mp3tag probably will, but currently doesn't support ID3v2 chapter marks.
this would be amazing! i cant wait til this hopefully becomes implemented!
Hi @Florian,
Just as a start, I love your application, thank you lots and lots.
I just want to say that chapter support is the number one feature on my "What I am missing in Mp3tag" list.
Another thing I want to say is that the current way you have implemented MP4 chapter support is not my favorite. This is what I do not like:
- There is no way to edit only the generic tags. For example, the m4b file may have a comment that is stored as a generic tag (not for each chapter). To remove it, I have to select all the chapters and delete the comment, Mp3tag will den save each chapter, this can be very slow.
- Listing some files multiple times, once for each chapter, is confusing. It would be better if you could right click the file and select "Edit chapters" from the menu. This would also allow for editing generic tags.
I have noticed that there seems to be different ways that MP4 implement chapters. For example, I have many m4b files that includes chapters, and when I open a folder with those files in Mp3tag, I see that some of the files will be listed multiple times, one for each chapter, and some is only listed once, even though they have chapters.
One thing I have tested is to use FFmpeg to get the metadata from one m4b file that Mp3tag list only once, and then copy the metadata to a new version of that file. After doing that, Mp3tag will list the original version only once, and the new version multiple times. The tag will be listed as MP4 on both versions. The commands I used when testing this was:
ffmpeg -i "original.m4b" -f ffmetadata metadata.txt
ffmpeg -i "original.m4b" -i metadata.txt -map_metadata 1 -map_chapters 1 -codec copy "new.m4b"
The original m4b file was created with fre:ac v1.1 Alpha 20181201a. I have also seen that m4b files created with Chapter and Verse are listed only once in Mp3tag.
I was thinking that some samples could be helpful. This site has samples of mp3 as well as mp4, opus and ogg:
https://auphonic.com/blog/2013/07/03/chapter-marks-and-enhanced-podcasts/
And this is a bug report for VLC with the same request and a sample file:
I can also mention the ID3v2ChapterTool, that is maintained as a Sourceforge project http://id3v2-chap-tool.sourceforge.net/. This application struggles with ID3 frames over 100KB (can be an issue when adding a cover) and is a limitation of the JMF framework on which it is partially built and not the tool or the specification itself.
Another example is the eyeD3 library where there is some sample code in python:
+1 to this request! My current workflow for exporting podcast episodes is pretty fragmented, because I have to use a different program to insert chapter metadata.
I would like to see chapters supported too.
Since a large percentage of my music library consists of DJ mixes, I've wanted MP3 chapter support for ages now. It's frustrating that the feature is largely ignored.
I did some research recently on creating chapter marks for m4a and opus files downloaded from YouTube.
tl;dr Use tools to convert any timestamp formats into FFmetadata format, then using FFmpeg to embed the chapter info into media files. It can deal with common formats and the output files can be supported by foobar2000, VLC, MPV, which is good enough for my use case.
The detailed version may be in my blog post one day... I'll append it here if the post is online. Subscribe to this thread and you will receive the notification mail.
Yes, that does seem to be the most supported solution right now. It's just too bad this stuff doesn't have much support in MP3 files ages after support was documented (except for podcasting-specific apps, which do seem to support MP3 chapters).
The chapter support page at ID3.org was added in 2005. Support for id3v2.4 was added in 2000, yet that has had little support in players or media libraries - and even those that do seem to have some issues with consistency. I guess it is a bit of a chicken/egg thing which will drive more support.
There has been chapter support added for mp3tag in video files. Perhaps this will translate into audio mp3 files as well sooner or later?
If it helps at all to document use cases, I use MP3tag to edit tags and cover art for single-file audiobooks. I use fre:ac to convert a directory full of MP3s (usually one per CD track) into a single M4A container, and it adds chapter markers in the book based on the original MP3s. It would be handy if MP3tag included some way to see already-defined markers, and even nicer if I could maybe edit them (like, say, changing chapter names).
We already have some mainstream players that support chapter marks in MP3s (AIMP, Media Player Classic...), yet still there is no way to edit chapters in Mp3tag.