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

FFmpeg trac at avcodec.org
Mon Jul 20 22:37:53 CEST 2015

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

Comment (by Mango):

 Replying to [comment:49 gjdfgh]:
 > This is not the same thing. You could have fucked up the conversion. How
 is that so hard to understand.

 So ffmpeg could have fucked up (as you say) the conversion? Good I came
 here then to report the bug.

 As I said, I tried converting with ffmpeg and eac3to. Results are the

 And if some players play the flac right and some not, there is a problem
 with some players. No ?

 As I said:

 LAV and MPC-HC play it correctly.
 VLC and kodi play it wrong as 2F/2R

 This issue was also investigated and acknowledged by eac3to and LAV filter

 The LAV dev said he specifically had to fix LAV to use the
 WAVEFORMATEXTENSIBLE_CHANNEL_MASK tag. He also said MPC-HC was playing it
 correctly, but VLC was broken in this regard, and he also contributed to
 the VLC bug tracker to get this fixed.

Ticket URL: <https://trac.ffmpeg.org/ticket/4698#comment:50>
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