[FFmpeg-trac] #321(undetermined:closed): Ffmpeg fails to detect format of piped input on some mp3 files

[FFmpeg]

#321: Ffmpeg fails to detect format of piped input on some mp3 files
------------------------+---------------------------
Reporter:  gwg          |       Owner:
    Type:  defect       |      Status:  closed
Priority:  normal       |   Component:  undetermined
 Version:  unspecified  |  Resolution:  worksforme
Keywords:               |  Blocked By:
Blocking:               |  Reproduced:  0
Analyzed:  0            |
------------------------+---------------------------
Changes (by cehoyos):

 * status:  open => closed
 * resolution:   => worksforme


Comment:

 Works fine for me with latest git. Currently supported versions are 0.7.1,
 0.8 and git HEAD (your version is several years old).
 If you find a file that does not work correctly with a supported version,
 please do not hesitate to re-open this ticket!
 {{{
 cat ffmpeg_unpipeable.mp3 |ffmpeg -i - out.wav
 ffmpeg version N-31097-ga099183, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Jun 30 2011 23:03:35 with gcc 4.5.3
   configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --enable-gpl --enable-
 libxvid
   libavutil    51. 11. 0 / 51. 11. 0
   libavcodec   53.  7. 0 / 53.  7. 0
   libavformat  53.  4. 0 / 53.  4. 0
   libavdevice  53.  2. 0 / 53.  2. 0
   libavfilter   2. 24. 0 /  2. 24. 0
   libswscale    2.  0. 0 /  2.  0. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 [mp3 @ 0x12c6400] Format mp3 detected only with low score of 1,
 misdetection possible!
 [mp3 @ 0x12c6400] max_analyze_duration 5000000 reached at 5015510
 [mp3 @ 0x12c6400] Estimating duration from bitrate, this may be inaccurate
 Input #0, mp3, from 'pipe:':
   Metadata:
     encoder         : Lavf52.39.2
     title           : Smith Hill
     artist          : Deer Tick
     album           : Born on Flag Day
     ALBUMARTIST     : Deer Tick
     album_artist    : Deer Tick
     track           : 03/10
     disc            : 01/1
     date            : 2009
     genre           : Rock
     TDTG            : 2011-04-05T07:02:29
   Duration: N/A, start: 0.000000, bitrate: 320 kb/s
     Stream #0.0: Audio: mp3, 44100 Hz, stereo, s16, 320 kb/s
 Output #0, wav, to 'out.wav':
   Metadata:
     TDTG            : 2011-04-05T07:02:29
     title           : Smith Hill
     artist          : Deer Tick
     album           : Born on Flag Day
     ALBUMARTIST     : Deer Tick
     album_artist    : Deer Tick
     track           : 03/10
     disc            : 01/1
     date            : 2009
     genre           : Rock
     encoder         : Lavf53.4.0
     Stream #0.0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
 Stream mapping:
   Stream #0.0 -> #0.0
 size=   38124kB time=00:03:41.30 bitrate=1411.2kbits/s
 video:0kB audio:38124kB global headers:0kB muxing overhead 0.000113%
 }}}

-- 
Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/321#comment:5>
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