[FFmpeg-trac] #11201(undetermined:new): Animated AVIF converts well to mp4 in ffmpeg v6, but not in v7

[FFmpeg]

#11201: Animated AVIF converts well to mp4 in ffmpeg v6, but not in v7
-------------------------------------+-------------------------------------
             Reporter:  nmp5         |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  avif         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I can no longer convert animated AVIF to MP4 when using ffmpeg v7. It does
 convert, but the MP4 doesn't show the animation. Just the first frame or
 so.

 While, with ffmpeg v6, it works well (animation shown perfectly in the MP4
 file, and file size bigger than the MP4 file created by ffmpeg v7).

 I tried this in Alpine docker, and on Windows.

 In the attachments, I include:
 - the original AVIF file
 - the various logs for each of the commands I ran (with the command in the
 first line, for reference), with "-v trace"
 - the outputs produced (animated-avif-ffmpeg-6-apk.mp4 and animated-avif-
 ffmpeg-6-static.mp4 are the expected outputs)
 - the output of "ffmpeg -v 9 -loglevel 99 -i"
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11201>
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