Bitrate parsing from Matroska container

[Blackflexxy]

By default, mediainfo parses the bitrate for dolby audio directly from the stream metadata, if you concatenate two tracks with different bitrates, mediainfo will only show the bitrate and other information(such as DN) from the first track. But when muxing with mkvmerge, there is a BPS tag that(I think) is already used to display the bitrate of video and other audio codecs, can we use this tag to correctly detect the bitrate of dolby audio streams as well?