[FFmpeg-trac] #10499(ffmpeg:new): Error while decoding stream Invalid data found when processing input

[FFmpeg]

#10499: Error while decoding stream Invalid data found when processing input
--------------------------------+--------------------------------------
             Reporter:  bybarn  |                     Type:  defect
               Status:  new     |                 Priority:  normal
            Component:  ffmpeg  |                  Version:  git-master
             Keywords:          |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
--------------------------------+--------------------------------------
 Summary of the bug: I am transcoding an audio file from flac to m4a and
 the resulting file contain a very noticable "glitch" that the source files
 does not have. Encoding to other formats (i.e. mp3) does not have the
 glitch. Also, the glitch does not occur when encoding with VBR.

 How to reproduce:

 First transcode the file: ffmpeg -hide_banner -nostats -nostdin -loglevel
 error -y -i file.flac -vn -c:a aac -aac_coder fast -b:a 320k file1.m4a

 Then validate the output: ffmpeg -hide_banner -nostats -nostdin -v error
 -i file.flac -vn -f null /dev/null

 Error: [aac @ 00000154ace689c0] channel element 1.8 is not allocated
 Error while decoding stream #0:0: Invalid data found when processing input

 At 02:47, there is a very noticable glitch during playback of the output
 file.

 I have tested this with multiple versions. When I use version 3.4.1, the
 problem does not occur.

 Debug commands to get full output:

 Command 1:
 ffmpeg -v 9 -loglevel 99 -i file.flac -vn -c:a aac -aac_coder fast -b:a
 320k file2.m4a > cmd1.out 2> cmd1.err

 Commmand 2:
 ffmpeg -v 9 -loglevel 99 -i file.flac -vn -f null /dev/null > cmd2.out 2>
 cmd2.err
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10499>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker