[FFmpeg-trac] #4730(avcodec:open): AAC: trying ffprobe on AAC file with LATM fails due to byte alignment check

FFmpeg trac at avcodec.org
Thu Jul 30 02:29:02 CEST 2015


#4730: AAC: trying ffprobe on AAC file with LATM fails due to byte alignment check
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:
  klaussfreire                       |  klaussfreire@…
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac latm     |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * keywords:  aac latm byte alignment => aac latm
 * status:  new => open


Comment:

 {{{
 $ ffmpeg -i aac_latm_non_byte_aligned.bin
 ffmpeg version N-74140-g6c87b86 Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --enable-libzvbi
   libavutil      54. 29.100 / 54. 29.100
   libavcodec     56. 56.101 / 56. 56.101
   libavformat    56. 40.101 / 56. 40.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 30.100 /  5. 30.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  2.101 /  1.  2.101
   libpostproc    53.  3.100 / 53.  3.100
 [aac_latm @ 0x25abe00] Non-byte-aligned audio-specific config is not
 implemented. Update your FFmpeg version to the newest one from Git. If the
 problem still occurs, it means that your file has a feature which has not
 been implemented.
 [aac_latm @ 0x25abe00] If you want to help, upload a sample of this file
 to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing
 list. (ffmpeg-devel at ffmpeg.org)

 ...

 ...

 ...

 [aac_latm @ 0x25abe00] Non-byte-aligned audio-specific config is not
 implemented. Update your FFmpeg version to the newest one from Git. If the
 problem still occurs, it means that your file has a feature which has not
 been implemented.
 [aac_latm @ 0x25abe00] If you want to help, upload a sample of this file
 to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing
 list. (ffmpeg-devel at ffmpeg.org)
 [loas @ 0x25ab3e0] decoding for stream 0 failed
 [loas @ 0x25ab3e0] Could not find codec parameters for stream 0 (Audio:
 aac_latm, 0 channels, fltp): unspecified sample rate
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 aac_latm_non_byte_aligned.bin: could not find codec parameters
 Input #0, loas, from 'aac_latm_non_byte_aligned.bin':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Audio: aac_latm, 0 channels, fltp
 At least one output file must be specified
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4730#comment:1>
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