vsmuxtools.extension.chapters

def __init__(
    self,
    chapter_source: src_file | PathLike | GlobSearch | Chapter | list[Chapter],
    timesource: TimeSourceT = None,
    timescale: TimeScaleT = TimeScale.MKV,
    _print: bool = True,
) -> None:
    """
    Convenience class for chapters

    :param chapter_source:      Input either src_file/FileInfo, txt with ogm chapters, xml or (a list of) self defined chapters.
                                A src_file may have at most one trim range.
    :param timesource:          The source of timestamps/timecodes. For details check the docstring on the type.\n
                                Will be taken from input if it's a src_file and assume the usual 24 if not.

    :param timescale:           Unit of time (in seconds) in terms of which frame timestamps are represented.\n
                                For details check the docstring on the type.

    :param _print:              Prints chapters after parsing and after trimming.
    """
    if isinstance(chapter_source, src_file):
        trim = chapter_source.trim
        if isinstance(trim, list) and len(trim) > 1:
            raise error("Cannot currently parse chapters with multiple trim ranges.", self)
        if isinstance(trim, list):
            trim = trim[0] if trim else None
        if isinstance(chapter_source.file, list):
            # I'll make a workaround for this soonish
            raise error("Cannot currently parse chapters when splicing multiple files.", self)
        clip_fps = Fraction(chapter_source.src.fps_num, chapter_source.src.fps_den)
        self.timestamps = resolve_timesource_and_scale(timesource if timesource else clip_fps, timescale, caller=self)
        self.chapters = parse_chapters_bdmv(chapter_source.file, clip_fps, chapter_source.src_cut.num_frames, _print)
        if self.chapters and trim:
            self.trim(trim[0] or 0, trim[1] or 0, chapter_source.src_cut.num_frames)
            if _print:
                print("After trim:")
                self.print()
    else:
        # TODO: Why does this fail too?
        super().__init__(chapter_source, timesource or Fraction(24000, 1001), timescale, _print)  # type: ignore