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authorYiyuan GUO <yguoaz@gmail.com>2021-05-15 13:54:35 +0800
committerPaul B Mahol <onemda@gmail.com>2022-03-14 17:55:00 +0100
commit2201c91fbf672447aa2063bd752d821466b8f11b (patch)
treee907f5b89a97ad8f87cb3d8bfd5287ff3504ddb2 /tools/murge
parent910a24eb330694a24da20efd03706a7a6052bb77 (diff)
downloadffmpeg-2201c91fbf672447aa2063bd752d821466b8f11b.tar.gz
avfilter/vf_palettegen: add protection against potential divide by zero
In libavfilter/vf_palettegen.c, the function get_avg_color requires that box->len greater than zero to avoid dividing by zero. However, the call sequence filter_frame -> get_palette_frame -> get_avg_color may not satisfy this precondition. Fixes #9222. Signed-off-by: Yiyuan GUO <yguoaz@gmail.com>
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