[FFmpeg-trac] #659(FFmpeg:new): specific m4b audiobook transcoding fails

[FFmpeg]

#659: specific m4b audiobook transcoding fails
--------------------------------------+---------------------------------
               Reporter:  nostah      |                  Owner:  michael
                   Type:  defect      |                 Status:  new
               Priority:  normal      |              Component:  FFmpeg
                Version:  git-master  |               Keywords:
             Blocked By:              |               Blocking:
Reproduced by developer:  0           |  Analyzed by developer:  0
--------------------------------------+---------------------------------
 I am trying to transcode m4b audiobook to another mp4 file with lower
 bitrate. For unknown reason ffmpeg fails to do that on one file while it
 works fine on the others I have.

 I am using a command (with freshly built ffmpeg from git master):


 /usr/local/bin/ffmpeg -v 9 -loglevel 99 -y -i test_m4b_with_cover.m4b
 -acodec libfaac -ab 64000 /tmp/ab.mp4

 which gives following result:

 ffmpeg version N-34903-g16b809c, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Nov 16 2011 15:09:06 with gcc 4.4.5
   configuration: --cc='ccache cc' --enable-shared --enable-libmp3lame
 --enable-gpl --enable-nonfree --enable-libdirac --disable-decoder=libdirac
 --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid
 --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264
 --enable-libspeex --enable-nonfree --disable-stripping --enable-
 libschroedinger --disable-encoder=libschroedinger --enable-version3
 --enable-libopenjpeg --enable-libvpx --enable-librtmp --enable-avfilter
 --enable-frei0r --enable-libopencv --enable-libfreetype --enable-libvo-
 aacenc --enable-libvo-amrwbenc --enable-libaacplus --disable-altivec
 --disable-armv5te --disable-armv6 --disable-vis
   libavutil    51. 25. 0 / 51. 25. 0
   libavcodec   53. 34. 0 / 53. 34. 0
   libavformat  53. 20. 0 / 53. 20. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 48. 1 /  2. 48. 1
   libswscale    2.  1. 0 /  2.  1. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2388aa0] Format mov,mp4,m4a,3gp,3g2,mj2
 probed with size=2048 and score=100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2388aa0] ISO: File Type Major Brand: M4A
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2388aa0] All info found
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2388aa0] Estimating duration from bitrate,
 this may be inaccurate
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_m4b_with_cover.m4b':
   Metadata:
     major_brand     : M4A
     minor_version   : 0
     compatible_brands: M4A mp42isom
     creation_time   : 2011-04-19 08:19:18
     album           : Title
     artist          : Artist
     encoder         : Online Media Technologies
     genre           : Audio Book
     title           : Title
     track           : 1
   Duration: N/A, bitrate: N/A
 Output #0, mp4, to '/tmp/ab.mp4':
   Metadata:
     major_brand     : M4A
     minor_version   : 0
     compatible_brands: M4A mp42isom
     creation_time   : 2011-04-19 08:19:18
     album           : Title
     artist          : Artist
     encoder         : Online Media Technologies
     genre           : Audio Book
     title           : Title
     track           : 1
 Output file #0 does not contain any stream



 Changing output codec to libmp3lame also results in above error.

 File could not be played with ffplay but works fine with VLC (linux) and
 QuickTime Player (mac).

 ffplay fails with message:

 [begining the same as in ffmpeg - only last line changes]
 test_m4b_with_cover.m4b: could not open codecs

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/659>
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