[FFmpeg-trac] #4698(avcodec:closed): Wrong channel layout for FLAC 3/1 channels on playback

FFmpeg trac at avcodec.org
Mon Jul 20 11:02:55 CEST 2015

#4698: Wrong channel layout for FLAC 3/1 channels on playback
             Reporter:  Mango        |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:  avcodec
              Version:  unspecified  |               Resolution:  invalid
             Keywords:  flac         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by heleppkes):

 Replying to [comment:36 gjdfgh]:
 > >Maybe audio drivers just fail at it or the two HDMI receivers I tested
 were bad at their job, but at least on Windows trying to send different
 layouts of the same channel count usually results in the same layout being
 used for all variants, which is why I added a mode to pad it with empty
 channels to one of the "standard" modes.
 > That sounds rather bad. But maybe the receivers you tested simply didn't
 support the specific layout you tried (this seems to happen often with
 obscure layouts).

 I think I first noticed the problem on a 5.0 (ie. default 5.1 without
 sub), which would somehow swallow the center channel when played like
 this, I would think thats not too obscure, but shrug. Padding with empty
 channel was easy and ensures compatibility. :)

Ticket URL: <https://trac.ffmpeg.org/ticket/4698#comment:38>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker

More information about the FFmpeg-trac mailing list