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Code Issues Releases Activity

avcodec/motion_est: Fix xy indexing on range violation in ff_get_best_fcode()

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This codepath seems untested, no testcases change

Found-by: <mkver>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 634312a70f4d5afd40058c52b4d8eade1da07a70)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2022-02-08 21:38:50 +01:00
parent e816333c55
commit d2afa2b033
1 changed files with 1 additions and 2 deletions
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3
libavcodec/motion_est.c
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@ -1633,7 +1633,7 @@ int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)
for(y=0; y<s->mb_height; y++){
int x;
int xy= y*s->mb_stride;
for(x=0; x<s->mb_width; x++){
for(x=0; x<s->mb_width; x++, xy++){
if(s->mb_type[xy] & type){
int mx= mv_table[xy][0];
int my= mv_table[xy][1];
@ -1650,7 +1650,6 @@ int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)
score[j]-= 170;
}
}
xy++;
}
}