New submission from James Barwick <[email protected]>:

Source movie contains 5.1 ac3 audio 

Ffmpeg -i movie.mkv ... -acodec ac3 -ab 48000 -ar 320k -ac 6 outfile.mkv

Output indicators say it is transcoding 6 channels to 6 channels. However, 
the final video has only 2 channel stereo ac3 track (and video)

Compiled from latest macports

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messages: 12098
priority: normal
status: new
substatus: new
title: AC3 6 channel to AC3  6 channel transcode fails and produces 2 channels
type: bug

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FFmpeg issue tracker <[email protected]>
<https://roundup.ffmpeg.org/issue2262>
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