[FFmpeg-trac] #722(undetermined:new): ffmpeg parses bext umid incorrectly when umid is 64 bytes

[FFmpeg]

#722: ffmpeg parses bext umid incorrectly when umid is 64 bytes
-------------------------------------+-------------------------------------
             Reporter:  dericed      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  bext         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 The bext UMID field can be either 32 bytes or 64 bytes. When I run ffmpeg
 -i 64byteumid.wav on a file with 64 byte UMID, the expressed UMID value is
 incomplete and missing the last byte (0x45). Note the the umid expressed
 by ffmpeg inserts an '0x' as the 33rd byte.

 ffmpeg reports
 {{{
 0x060A2B34010101010101021333000000FF7FCBA40000008000000000000000FF0x000000000000008000000000000000000000000055534120574E5943444156
 }}}
 but the umid is

 {{{
 0x060A2B34010101010101021033000000FF7FCBA40000008000000000000000FF000000000000008000000000000000000000000055534120574E594344415645
 }}}
 ffmpeg output:
 {{{
 ffmpeg version N-31814-g7076967, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Nov 29 2011 16:34:05 with gcc 4.2.1 (Apple Inc. build 5666)
 (dot 3)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD --enable-shared
 --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables
 --cc=/usr/bin/gcc-4.2 --enable-libx264 --enable-libfaac --enable-
 libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
 libxvid --disable-ffplay
   libavutil    51. 29. 1 / 51. 29. 1
   libavcodec   53. 39. 1 / 53. 39. 1
   libavformat  53. 22. 0 / 53. 22. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 50. 0 /  2. 50. 0
   libswscale    2.  1. 0 /  2.  1. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 [wav @ 0x7fd37a83d800] parser not found for codec pcm_s16le, packets or
 times may be invalid.
 [wav @ 0x7fd37a83d800] max_analyze_duration 5000000 reached at 5024000
 Input #0, wav, from '64byteumid.wav':
   Metadata:
     IENG            : IENG value
     originator_reference: orig reference
     IARL            : IARL value
     artist          : IART value
     ICMS            : ICMS value
     comment         : sample file for ffmpeg's bext parser

     copyright       : ICOP value
     genre           : IGNR value
     IKEY            : IKEY value
     IMED            : IMED value
     title           : INAM value
     album           : IPRD value
     ISBJ            : ISBJ value
     encoder         : ISFT value
     ISRC            : ISRC value
     ISRF            : ISRF value
     encoded_by      : dave
     date            : 2001-09-13
     creation_time   : 07:50:05
     time_reference  : 119136534
     umid            :
 0x060A2B34010101010101021333000000FF7FCBA40000008000000000000000FF0x000000000000008000000000000000000000000055534120574E5943444156
     coding_history  : A=PCM,F=44100,W=16,M=stereo,T=Orban AUDICY EDIT
 A=PCM,F=32000,W=16,M=stereo,T=Orban AUDICY SRC

   Duration: 00:00:06.28, bitrate: 1029 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 32000 Hz, 2
 channels, s16, 1024 kb/s
 At least one output file must be specified
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/722>
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