[FFmpeg-trac] #6008(undetermined:new): Problem attaching a picture to an mp3 with id3v2 version 4

[FFmpeg]

#6008: Problem attaching a picture to an mp3 with id3v2 version 4
-------------------------------------+-------------------------------------
             Reporter:  mitchbcn     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  mp3 id3v2    |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by mitchbcn):

 Same problem, no error displayed but there are no tags and cover in the
 mp3 result file.

 {{{
 mitch at server1:~/AAE/files$ ffmpeg -y -i podcast.mp3 -b:a 48 -ac 1
 -metadata "album='Podcast'" -id3v2_version 4 -f mp3 test_portada.mp3
 ffmpeg version N-82837-gb7e4ea0 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
   configuration: --enable-gpl --enable-libmp3lame --enable-nonfree
   libavutil      55. 43.100 / 55. 43.100
   libavcodec     57. 67.100 / 57. 67.100
   libavformat    57. 59.100 / 57. 59.100
   libavdevice    57.  2.100 / 57.  2.100
   libavfilter     6. 68.100 /  6. 68.100
   libswscale      4.  3.101 /  4.  3.101
   libswresample   2.  4.100 /  2.  4.100
   libpostproc    54.  2.100 / 54.  2.100
 [mp3 @ 0x2f8e4c0] Estimating duration from bitrate, this may be inaccurate
 Input #0, mp3, from 'podcast.mp3':
   Metadata:
     encoder         : Lavf52.64.2
   Duration: 01:11:10.52, start: 0.000000, bitrate: 48 kb/s
     Stream #0:0: Audio: mp3, 44100 Hz, mono, s16p, 48 kb/s
 [libmp3lame @ 0x2fa0b00] Bitrate 48 is extremely low, maybe you mean 48k
 The bitrate parameter is set too low. It takes bits/s as argument, not
 kbits/s
 Output #0, mp3, to 'test_portada.mp3':
   Metadata:
     TALB            : 'Podcast'
     TSSE            : Lavf57.59.100
     Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, mono, s16p, 0 kb/s
     Metadata:
       encoder         : Lavc57.67.100 libmp3lame
 Stream mapping:
   Stream #0:0 -> #0:0 (mp3 (native) -> mp3 (libmp3lame))
 Press [q] to stop, [?] for help
 size=   33364kB time=01:11:10.52 bitrate=  64.0kbits/s speed=63.2x
 video:0kB audio:33364kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.000726%
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/6008#comment:2>
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