new_info.update(fmt)
offset, duration = info_dict.get('section_start') or 0, info_dict.get('duration') or float('inf')
end_time = offset + min(chapter.get('end_time', duration), duration)
new_info.update(fmt)
offset, duration = info_dict.get('section_start') or 0, info_dict.get('duration') or float('inf')
end_time = offset + min(chapter.get('end_time', duration), duration)