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avcodec/motion_est: don't add offsets to NULL pointers

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Fixes: libavcodec/motion_est.c:94:31: runtime error: applying zero offset to null pointer
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 585a8d5357)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
James Almer
2025-07-13 20:01:26 -03:00
committed by Michael Niedermayer
parent e0b200a1b0
commit c3c47781fb
1 changed files with 3 additions and 3 deletions
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libavcodec/motion_est.c
+3 -3
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@@ -90,12 +90,12 @@ static inline void init_ref(MotionEstContext *c, uint8_t *const src[3],
};
int i;
for(i=0; i<3; i++){
c->src[0][i]= src [i] + offset[i];
c->ref[0][i]= ref [i] + offset[i];
c->src[0][i]= src[i] ? FF_PTR_ADD(src[i], offset[i]) : NULL;
c->ref[0][i]= ref[i] ? FF_PTR_ADD(ref[i], offset[i]) : NULL;
}
if(ref_index){
for(i=0; i<3; i++){
c->ref[ref_index][i]= ref2[i] + offset[i];
c->ref[ref_index][i]= ref2[i] ? FF_PTR_ADD(ref2[i], offset[i]) : NULL;
}
}
}