[FFmpeg-trac] #3146(avformat:open): Some MP3 files don't detect any streams

[FFmpeg]

#3146: Some MP3 files don't detect any streams
-------------------------------------+-------------------------------------
             Reporter:  catd         |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mp3 id3      |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * status:  new => open
 * reproduced:  0 => 1
 * component:  undetermined => avformat
 * priority:  normal => important
 * version:  2.1 => git-master
 * keywords:  mp3 detect => mp3 id3 regression


Comment:

 For future tickets: Please always test current git head and if a problem
 is reproducible with ffmpeg (the application), please provide the failing
 ffmpeg command line together with the complete, uncut console output.

 Workaround is to increase analyzeduration / probesize as suggested by
 FFmpeg.

 Regression since 11a1033c / 385ec296
 {{{
 $ ffmpeg -i Stuntin_#39\;_By_The_floozies.mp3
 ffmpeg version N-58200-g92cbd77 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Nov 17 2013 04:21:45 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      52. 53.100 / 52. 53.100
   libavcodec     55. 43.100 / 55. 43.100
   libavformat    55. 21.100 / 55. 21.100
   libavdevice    55.  5.100 / 55.  5.100
   libavfilter     3. 91.100 /  3. 91.100
   libswscale      2.  5.101 /  2.  5.101
   libswresample   0. 17.104 /  0. 17.104
   libpostproc    52.  3.100 / 52.  3.100
 [mp3 @ 0x2d95100] Format mp3 detected only with low score of 24,
 misdetection possible!
 [mjpeg @ 0x2d96c20] mjpeg: error, decode_app parser read over the end
 [mp3 @ 0x2d95100] Stream #0: not enough frames to estimate rate; consider
 increasing probesize
 [mp3 @ 0x2d95100] Stream #1: not enough frames to estimate rate; consider
 increasing probesize
 [mp3 @ 0x2d95100] Could not find codec parameters for stream 0 (Audio:
 mp3, 0 channels, s16p): unspecified frame size
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 Input #0, mp3, from 'Stuntin_#39;_By_The_floozies.mp3':
   Metadata:
     TSS             : Logic Pro 9.1.7
     title           : Stuntin'
     artist          : The Floozies
     album_artist    : The Floozies
     album           : Stuntin'
     genre           : Funkstep
     date            : 2013
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Audio: mp3, 0 channels, s16p
     Stream #0:1: Video: mjpeg, yuvj420p(pc), 160x160, 90k tbr, 90k tbn,
 90k tbc
     Metadata:
       title           : ÿØÿá"WExif
       comment         : Other
 At least one output file must be specified
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3146#comment:2>
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