[FFmpeg-trac] #5122(undetermined:new): First audio packet is always corrupted when parsing PCM

[FFmpeg]

#5122: First audio packet is always corrupted when parsing PCM
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:
  marcel_poelstra                    |                   Status:  new
                 Type:  defect       |                Component:
             Priority:  normal       |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by marcel_poelstra):

 console output :

 [root at beheer-marcel2 testnieuwjaar2]# ffmpeg -i
 440Hz_44100Hz_16bit_30sec.wav -c:a copy  testout.wav
 ffmpeg version N-43433-g68eb208 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
   configuration: --prefix=/root/ffmpeg_build --extra-
 cflags=-I/root/ffmpeg_build/include --extra-
 ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --pkg-config-
 flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-
 libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis
 --enable-libvpx --enable-libx264 --enable-libx265
   libavutil      55. 12.100 / 55. 12.100
   libavcodec     57. 21.100 / 57. 21.100
   libavformat    57. 21.100 / 57. 21.100
   libavdevice    57.  0.100 / 57.  0.100
   libavfilter     6. 23.100 /  6. 23.100
   libswscale      4.  0.100 /  4.  0.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 Guessed Channel Layout for  Input Stream #0.0 : mono
 Input #0, wav, from '440Hz_44100Hz_16bit_30sec.wav':
   Metadata:
     date            :
     artist          :
     title           :
     genre           :
     comment         :
     IENG            :
     copyright       :
     encoder         :
   Duration: 00:00:30.00, bitrate: 706 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 1
 channels, s16, 705 kb/s
 Output #0, wav, to 'testout.wav':
   Metadata:
     ICRD            :
     IART            :
     INAM            :
     IGNR            :
     ICMT            :
     IENG            :
     ICOP            :
     ISFT            : Lavf57.21.100
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono,
 705 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 size=    2584kB time=00:00:30.00 bitrate= 705.6kbits/s speed=1.5e+03x
 video:0kB audio:2584kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.002948%

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5122#comment:4>
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