This perl script prints out the bitrate of each mkv stream in Kbps.
The computer will require mkvinfo by mkvtoolnix (free software for creating mkv files)
Usage: mkv-stream-size file1.mkv [file2.webm] ...
download the single script and run it after installing mkvinfo from mkvtoolnix
mkvinfo's track-info is slow for large files so this program is slow for large files.
Is.Van.Gogh.A.Genius.mkv 2282.1 Kbps (657M/0:39:16) (MB/duration)
MPEG4/ISO/AVC video 1720.9 Kbps
AAC audio 140.3 Kbps
AAC spa audio 138.3 Kbps
AAC fre audio 138.8 Kbps
AAC jpn audio 139.3 Kbps
tested with mkvinfo v.35.
mkv-stream-size
was printing size in MiB (2^20), but I believe every other tool uses MB (10^6) so, now uses 1MB=1000000 bytes.