[FFmpeg-trac] #1474(undetermined:open): Some audio encoders stopped encoding strange channel layouts

FFmpeg trac at avcodec.org
Wed Jul 4 22:15:41 CEST 2012


#1474: Some audio encoders stopped encoding strange channel layouts
-------------------------------------+-------------------------------------
             Reporter:  dcoffey3296  |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  regression   |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  1
-------------------------------------+-------------------------------------

Comment (by Cigaes):

 I do not know about libfaac, but libvorbis, and possibly some version of
 the AC3 encoder too, treats the LFE channel differently from the others.
 The encoders also take into account the relation between corresponding
 left and right channels (channel coupling), and I would not be surprised
 if some encoders would take that a step further.

 So I really do not think that lying to the encoder about the channel
 layout is a good idea, even with a warning.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1474#comment:18>
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