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Code Issues Releases Activity

aacsbr: change order of operation to prevent out of array read

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CC: libav-stable@libav.org
Bug-Id: CID 732250
This commit is contained in:
Michael Niedermayer
2014-10-30 00:52:04 +00:00
committed by Vittorio Giovara
parent 9f6f407463
commit 930ffd46e1
1 changed files with 2 additions and 1 deletions
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libavcodec/aacsbr.c
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@@ -549,7 +549,8 @@ static int sbr_hf_calc_npatches(AACContext *ac, SpectralBandReplication *sbr)
k = sbr->n_master; k = sbr->n_master;
} while (sb != sbr->kx[1] + sbr->m[1]); } while (sb != sbr->kx[1] + sbr->m[1]);
if (sbr->patch_num_subbands[sbr->num_patches-1] < 3 && sbr->num_patches > 1) if (sbr->num_patches > 1 &&
sbr->patch_num_subbands[sbr->num_patches - 1] < 3)
sbr->num_patches--; sbr->num_patches--;
return 0; return 0;