[FFmpeg-trac] #1763(undetermined:new): Audio encoding assumes a channel layout

FFmpeg trac at avcodec.org
Tue Sep 25 09:27:22 CEST 2012


#1763: Audio encoding assumes a channel layout
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  important  |              Component:
                Version:  git-       |  undetermined
  master                             |               Keywords:  regression
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 Related to ticket #1474, reproducible with the samples from ticket #1608
 and currently blocks ticket #98 (where the sample shows a wrong channel
 layout, this cannot be currently fixed to "unknown").
 {{{
 $ ffmpeg -ac 16 -f s16le -i /dev/zero -t 1 out.wav
 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
 [s16le @ 0x1505320] Invalid sample rate 0 specified using default of 44100
 [s16le @ 0x1505320] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, s16le, from '/dev/zero':
   Duration: N/A, start: 0.000000, bitrate: 11289 kb/s
     Stream #0:0: Audio: pcm_s16le, 44100 Hz, 16 channels, s16, 11289 kb/s
 [graph 0 input from stream 0:0 @ 0x1511aa0] Invalid channel layout '0x0'
 Error opening filters!
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1763>
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