[FFmpeg-trac] #4823(undetermined:new): Conversion from DTS/DTS-MA to AC3 results in 2 channels instead of 6

[FFmpeg]

#4823: Conversion from DTS/DTS-MA to AC3 results in 2 channels instead of 6
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             Reporter:  JohnGalt     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  ac3 dts      |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by jamrial):

 Replying to [comment:2 JohnGalt]:
 > ffmpeg -probesize 5G -analyzeduration 5G -i "sample.mkv" -map 0:0 -map
 0:1 -map 0:2 -map 0:1 -map 0:2 -c:v copy -c:a:0 copy -c:a:1 copy -c:a:2
 ac3 -ac 6 -ab 448k -ar 48000 -c:a:3 aac -ac 2 -ab 192k -ar 48000 -scodec
 copy -strict experimental -f mp4 -movflags faststart "result.m4v"

 I think the problem is the -ac 2 meant for the aac track. It's being set
 for all the audio tracks.

 Try using -ac:2 6 and -ac:3 2.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4823#comment:3>
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