Both ffmpeg and Gstreamer support getting the chapter information from the media (audio or video) file. It can be useful to allow developer get such information directly with Qt Multimedia's API (e.g. maybe as a part of QMediaPlayer and/or QMediaMetaData API) so the application can offer ability to list available chapters and allow user skip/jump to a certain chapter.

Links that might be related:

• GstToc: https://gstreamer.freedesktop.org/documentation/additional/design/toc.html?gi-language=c
• use ffprobe to list chapter information: https://ffmpeg.org/ffprobe.html#:~:text=%2D-,show_chapters,-Show%20information%20about

Also attached a sample audio file that contains chapter information