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avcodec/imgconvert: fix possible null pointer dereference

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regression since 354b26a394
This commit is contained in:
Simon Thelen 2018-04-03 14:41:33 +02:00 committed by Paul B Mahol
parent 4b736bc921
commit 8c2c97403b
1 changed files with 3 additions and 2 deletions
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libavcodec/imgconvert.c
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@ -72,11 +72,12 @@ enum AVPixelFormat avcodec_find_best_pix_fmt_of_list(const enum AVPixelFormat *p
int loss; int loss;
for (i=0; pix_fmt_list[i] != AV_PIX_FMT_NONE; i++) { for (i=0; pix_fmt_list[i] != AV_PIX_FMT_NONE; i++) {
loss = *loss_ptr; loss = loss_ptr ? *loss_ptr : 0;
best = avcodec_find_best_pix_fmt_of_2(best, pix_fmt_list[i], src_pix_fmt, has_alpha, &loss); best = avcodec_find_best_pix_fmt_of_2(best, pix_fmt_list[i], src_pix_fmt, has_alpha, &loss);
} }
*loss_ptr = loss; if (loss_ptr)
*loss_ptr = loss;
return best; return best;
} }