[FFmpeg-trac] #7621(avformat:open): Add .avif support (AV1 Image File Format

[FFmpeg]

#7621: Add .avif support (AV1 Image File Format
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             Reporter:  Ewout        |                    Owner:  (none)
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mov          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Balling):

 It now mostly works except for decoding some samples with error


 {{{
 iloc: item_count > 1 not supported
 }}}

 but that should be fixed in
 https://patchwork.ffmpeg.org/project/ffmpeg/patch/20220424183514.986374-1-vigneshv@google.com/

 Sample file with this error is here:
 https://bugzilla.mozilla.org/attachment.cgi?id=9241562
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Ticket URL: <https://trac.ffmpeg.org/ticket/7621#comment:15>
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