[FFmpeg-trac] #1764(undetermined:open): Wrong channel layout for files with uncommon audio

[FFmpeg]

#1764: Wrong channel layout for files with uncommon audio
-------------------------------------+-------------------------------------
             Reporter:  cehoyos      |                    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:  0
-------------------------------------+-------------------------------------
Description changed by cehoyos:

Old description:

> Related to ticket #1474 and #98, blocked by ticket #1763
> The file attached to ticket #1474 contains two audio tracks, the first
> has channel layout "RL", the second "FR", they are currently identified
> as "mono".
> {{{
> $ ffmpeg -i ticket1474.mov
> ffmpeg version N-44739-g4390f8c Copyright (c) 2000-2012 the FFmpeg
> developers
>   built on Sep 25 2012 09:25:02 with gcc 4.5.3 (GCC)
>   configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --enable-gpl
>   libavutil      51. 73.101 / 51. 73.101
>   libavcodec     54. 58.100 / 54. 58.100
>   libavformat    54. 28.101 / 54. 28.101
>   libavdevice    54.  2.101 / 54.  2.101
>   libavfilter     3. 17.100 /  3. 17.100
>   libswscale      2.  1.101 /  2.  1.101
>   libswresample   0. 15.100 /  0. 15.100
>   libpostproc    52.  0.100 / 52.  0.100
> Guessed Channel Layout for  Input Stream #0.1 : mono
> Guessed Channel Layout for  Input Stream #0.2 : mono
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'ticket1474.mov':
>   Metadata:
>     major_brand     : qt
>     minor_version   : 537199360
>     compatible_brands: qt
>     creation_time   : 2012-06-19 21:18:43
>   Duration: 00:01:59.61, start: 0.000000, bitrate: 167 kb/s
>     Stream #0:0(eng): Video: mpeg2video (Main) (xdvf / 0x66766478),
> yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 35000 kb/s, 29.97 fps, 29.97 tbr,
> 2997 tbn, 59.94 tbc
>     Metadata:
>       creation_time   : 2012-06-19 21:18:43
>       handler_name    : Apple Alias Data Handler
>       timecode        : 00:00:00;00
>     Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz,
> mono, s16, 768 kb/s
>     Metadata:
>       creation_time   : 2012-06-19 21:18:43
>       handler_name    : Apple Alias Data Handler
>     Stream #0:2(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz,
> mono, s16, 768 kb/s
>     Metadata:
>       creation_time   : 2012-06-19 21:18:43
>       handler_name    : Apple Alias Data Handler
>     Stream #0:3(eng): Data: none (tmcd / 0x64636D74)
>     Metadata:
>       creation_time   : 2012-06-19 21:18:43
>       handler_name    : Apple Alias Data Handler
>       timecode        : 00:00:00;00
> At least one output file must be specified
> }}}

New description:

 Related to ticket #1474 and #98, blocked by ticket #1763
 The file attached to ticket #1474 contains two audio tracks, the first has
 channel layout "FL", the second "FR", they are currently identified as
 "mono".
 {{{
 $ ffmpeg -i ticket1474.mov
 ffmpeg version N-44739-g4390f8c Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Sep 25 2012 09:25:02 with gcc 4.5.3 (GCC)
   configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --enable-gpl
   libavutil      51. 73.101 / 51. 73.101
   libavcodec     54. 58.100 / 54. 58.100
   libavformat    54. 28.101 / 54. 28.101
   libavdevice    54.  2.101 / 54.  2.101
   libavfilter     3. 17.100 /  3. 17.100
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 Guessed Channel Layout for  Input Stream #0.1 : mono
 Guessed Channel Layout for  Input Stream #0.2 : mono
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'ticket1474.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2012-06-19 21:18:43
   Duration: 00:01:59.61, start: 0.000000, bitrate: 167 kb/s
     Stream #0:0(eng): Video: mpeg2video (Main) (xdvf / 0x66766478),
 yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 35000 kb/s, 29.97 fps, 29.97 tbr,
 2997 tbn, 59.94 tbc
     Metadata:
       creation_time   : 2012-06-19 21:18:43
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:00;00
     Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz,
 mono, s16, 768 kb/s
     Metadata:
       creation_time   : 2012-06-19 21:18:43
       handler_name    : Apple Alias Data Handler
     Stream #0:2(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz,
 mono, s16, 768 kb/s
     Metadata:
       creation_time   : 2012-06-19 21:18:43
       handler_name    : Apple Alias Data Handler
     Stream #0:3(eng): Data: none (tmcd / 0x64636D74)
     Metadata:
       creation_time   : 2012-06-19 21:18:43
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:00;00
 At least one output file must be specified
 }}}

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1764#comment:2>
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