[FFmpeg-trac] #870(FFmpeg:new): Transcoding a file. Is this output actually an error?

[FFmpeg]

#870: Transcoding a file. Is this output actually an error?
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             Reporter:  himanshu    |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  FFmpeg
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by cehoyos):

 Works as expected on Linux, which return value do you see (and how do you
 test the value on Windows)?
 {{{
 $ ffmpeg -y -i _contents.wav -acodec pcm_mulaw output.wav
 ffmpeg version N-36389-g2ba3416, Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Jan  3 2012 13:15:08 with gcc 4.5.3
   configuration: --cc='/usr/local/gcc-4.5.3/bin/gcc -m32'
   libavutil      51. 33.100 / 51. 33.100
   libavcodec     53. 50.100 / 53. 50.100
   libavformat    53. 29.100 / 53. 29.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 57.101 /  2. 57.101
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  5.100 /  0.  5.100
 Input #0, wav, from '_contents.wav':
   Duration: 00:00:03.98, bitrate: 64 kb/s
     Stream #0:0: Audio: pcm_mulaw ([7][0][0][0] / 0x0007), 8000 Hz, 1
 channels, s16, 64 kb/s
 Output #0, wav, to 'output.wav':
   Metadata:
     encoder         : Lavf53.29.100
     Stream #0:0: Audio: pcm_mulaw ([7][0][0][0] / 0x0007), 8000 Hz, 1
 channels, s16, 64 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_mulaw -> pcm_mulaw)
 Press [q] to stop, [?] for help
 size=      31kB time=00:00:03.98 bitrate=  64.1kbits/s
 video:0kB audio:31kB global headers:0kB muxing overhead 0.182161%
 $ echo "$?"
 0
 }}}

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/870#comment:1>
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