[FFmpeg-trac] #3327(avformat:new): libavformat fails to detect some mp3 files reliably

[FFmpeg]

#3327: libavformat fails to detect some mp3 files reliably
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             Reporter:  gjdfgh      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mp3         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by cehoyos):

 Not a regression.
 {{{
 $ file issue3327-libc-2.17.so
 issue3327-libc-2.17.so: ELF 32-bit LSB shared object, Intel 80386, version
 1 (SYSV), dynamically linked (uses shared libs),
 BuildID[sha1]=0xa788c2ee6393d50dc870d6c1c77f3bf50063f774, for GNU/Linux
 2.6.32, stripped
 $ ffmpeg -i issue3327-libc-2.17.so
 ffmpeg version N-60202-g6369766 Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Jan 27 2014 11:19:29 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      52. 63.100 / 52. 63.100
   libavcodec     55. 49.100 / 55. 49.100
   libavformat    55. 26.100 / 55. 26.100
   libavdevice    55.  5.102 / 55.  5.102
   libavfilter     4.  1.101 /  4.  1.101
   libswscale      2.  5.101 /  2.  5.101
   libswresample   0. 17.104 /  0. 17.104
   libpostproc    52.  3.100 / 52.  3.100
 [mp3 @ 0x331c100] Format mp3 detected only with low score of 25,
 misdetection possible!
 [mp3 @ 0x331cb40] Header missing
     Last message repeated 88 times
 [mp3 @ 0x331c100] Estimating duration from bitrate, this may be inaccurate
 Input #0, mp3, from 'issue3327-libc-2.17.so':
   Duration: 00:00:47.54, start: 0.000000, bitrate: 256 kb/s
     Stream #0:0: Audio: mp1, 32000 Hz, stereo, s16p, 256 kb/s
 At least one output file must be specified
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/3327#comment:8>
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