[FFmpeg-trac] #1085(undetermined:new): mmf: 2ch audio encoded with adpcm_yamaha is identified as 1ch

[FFmpeg]

#1085: mmf:  2ch audio encoded with adpcm_yamaha  is identified as 1ch
-------------------------------------+-------------------------------------
             Reporter:  ami_stuff    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 {{{
 C:\>ffmpeg -i in_22.wav out.mmf
 ffmpeg version N-38622-g1eabd71 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Mar  7 2012 00:18:03 with gcc 4.6.2
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-ru
 ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-
 libope
 ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-
 libgsm --en
 able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-
 libschroedinger -
 -enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-
 amrwben
 c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs
 --enable-
 libxvid --enable-zlib
   libavutil      51. 42.100 / 51. 42.100
   libavcodec     54. 10.100 / 54. 10.100
   libavformat    54.  2.100 / 54.  2.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 63.100 /  2. 63.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  7.100 /  0.  7.100
   libpostproc    52.  0.100 / 52.  0.100
 Input #0, wav, from 'in_22.wav':
   Duration: 00:00:01.01, bitrate: 705 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, 2
 channels,
  s16, 705 kb/s
 File 'out.mmf' already exists. Overwrite ? [y/N] y
 Output #0, mmf, to 'out.mmf':
   Metadata:
     encoder         : Lavf54.2.100
     Stream #0:0: Audio: adpcm_yamaha, 22050 Hz, 2 channels, s16, 176 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le -> adpcm_yamaha)
 Press [q] to stop, [?] for help
 size=      22kB time=00:00:01.02 bitrate= 177.0kbits/s
 video:0kB audio:22kB global headers:0kB muxing overhead 0.359553%
 }}}

 {{{
 C:\>ffmpeg -i out.mmf
 ffmpeg version N-38622-g1eabd71 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Mar  7 2012 00:18:03 with gcc 4.6.2
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-ru
 ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-
 libope
 ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-
 libgsm --en
 able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-
 libschroedinger -
 -enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-
 amrwben
 c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs
 --enable-
 libxvid --enable-zlib
   libavutil      51. 42.100 / 51. 42.100
   libavcodec     54. 10.100 / 54. 10.100
   libavformat    54.  2.100 / 54.  2.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 63.100 /  2. 63.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  7.100 /  0.  7.100
   libpostproc    52.  0.100 / 52.  0.100
 [mmf @ 02159BE0] Estimating duration from bitrate, this may be inaccurate
 Input #0, mmf, from 'out.mmf':
   Duration: 00:00:02.05, bitrate: 88 kb/s
     Stream #0:0: Audio: adpcm_yamaha, 22050 Hz, 1 channels, s16, 88 kb/s
 At least one output file must be specified
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1085>
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