libavcodec/aaccoder.c:835: error: Buffer Overrun L3
  Offset added: 512 Size: [0, +oo].

libavcodec/aaccoder.c:749:1: <Length trace>
747. }
748. 
749. static void search_for_quantizers_faac(AVCodecContext *avctx, AACEncContext *s,
     ^
750.                                        SingleChannelElement *sce,
751.                                        const float lambda)

libavcodec/aaccoder.c:749:1: Parameter `sce->sf_idx[*]`
747. }
748. 
749. static void search_for_quantizers_faac(AVCodecContext *avctx, AACEncContext *s,
     ^
750.                                        SingleChannelElement *sce,
751.                                        const float lambda)

libavcodec/aaccoder.c:835:5: Array access: Offset added: 512 Size: [0, +oo]
833.         }
834.     }
835.     memset(sce->sf_idx, 0, sizeof(sce->sf_idx));
         ^
836.     abs_pow34_v(s->scoefs, sce->coeffs, 1024);
837.     for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
