[FFmpeg-trac] #6207(avformat:new): Wrong mkv codec ID for ac3 with bitstream_id > 8

[FFmpeg]

#6207: Wrong mkv codec ID for ac3 with bitstream_id > 8
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             Reporter:  Carl Eugen   |                    Owner:  (none)
  Hoyos                              |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mkv ac3      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Balling):

 For context:

 http://multimediacomputingguru.blogspot.com/2014/11/bsid-9-and-10-not-in-
 dolby-ac3.html

  “AC3/BSID9 and AC3/BSID10 (DolbyNet) :
 The ac3 frame header has, similar to the mpeg-audio header a version
 field. Normal ac3 is defined as bitstream id 8 (5 Bits, numbers are 0-15).
 Everything below 8 is still compatible with all decoders that handle 8
 correctly. Everything higher are additions that break decoder
 compatibility.
 For the samplerates 24kHz (00); 22,05kHz (01) and 16kHz (10) the BSID is 9
 For the samplerates 12kHz (00); 11,025kHz (01) and 8kHz (10) the BSID is
 10”
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Ticket URL: <https://trac.ffmpeg.org/ticket/6207#comment:3>
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