X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavfilter%2Fvf_paletteuse.c;h=1980907e70ecaf40c208831a6e8ef7fc815d1858;hb=cfd52094c027a3e31ee6ea9aafeb4a2e3c152ec1;hp=ed80ab04d5e9eaddf16a2cfecbcedc6e3e2c4226;hpb=0525722ca03aa6c3c8d828ad278e1870731bfafc;p=ffmpeg

diff --git a/libavfilter/vf_paletteuse.c b/libavfilter/vf_paletteuse.c
index ed80ab04d5e..1980907e70e 100644
--- a/libavfilter/vf_paletteuse.c
+++ b/libavfilter/vf_paletteuse.c
@@ -380,8 +380,11 @@ static av_always_inline int get_dst_color_err(PaletteUseContext *s,
     const uint8_t r = c >> 16 & 0xff;
     const uint8_t g = c >>  8 & 0xff;
     const uint8_t b = c       & 0xff;
+    uint32_t dstc;
     const int dstx = color_get(s, c, a, r, g, b, search_method);
-    const uint32_t dstc = s->palette[dstx];
+    if (dstx < 0)
+        return dstx;
+    dstc = s->palette[dstx];
     *er = r - (dstc >> 16 & 0xff);
     *eg = g - (dstc >>  8 & 0xff);
     *eb = b - (dstc       & 0xff);