libavcodec/ra288.c:203: error: Buffer Overrun L3
  Offset: [-34, 35] (⇐ [0, 1] + [-34, 34]) Size: 37 by call to `backward_filter`.

libavcodec/ra288.c:203:13: Call
201. 
202.         if ((i & 7) == 3) {
203.             backward_filter(ractx, ractx->sp_hist, ractx->sp_rec, syn_window,
                 ^
204.                             ractx->sp_lpc, syn_bw_tab, 36, 40, 35, 70);
205. 

libavcodec/ra288.c:152:1: Array declaration
  150.  * Backward synthesis filter, find the LPC coefficients from past speech data.
  151.  */
  152. static void backward_filter(RA288Context *ractx,
       ^
  153.                             float *hist, float *rec, const float *window,
  154.                             float *lpc, const float *tab,

libavcodec/ra288.c:161:10: Call
  159.     do_hybrid_window(ractx, order, n, non_rec, temp, hist, rec, window);
  160. 
  161.     if (!compute_lpc_coefs(temp, order, lpc, 0, 1, 1))
                ^
  162.         ractx->dsp.vector_fmul(lpc, lpc, tab, FFALIGN(order, 8));
  163. 

libavcodec/lpc.h:116:1: <Offset trace>
114.  * Produce LPC coefficients from autocorrelation data.
115.  */
116. static inline int compute_lpc_coefs(const LPC_TYPE *autoc, int max_order,
     ^
117.                                     LPC_TYPE *lpc, int lpc_stride, int fail,
118.                                     int normalize)

libavcodec/lpc.h:116:1: Parameter `max_order`
    114.  * Produce LPC coefficients from autocorrelation data.
    115.  */
    116. static inline int compute_lpc_coefs(const LPC_TYPE *autoc, int max_order,
         ^
    117.                                     LPC_TYPE *lpc, int lpc_stride, int fail,
    118.                                     int normalize)

libavcodec/lpc.h:116:1: <Length trace>
114.  * Produce LPC coefficients from autocorrelation data.
115.  */
116. static inline int compute_lpc_coefs(const LPC_TYPE *autoc, int max_order,
     ^
117.                                     LPC_TYPE *lpc, int lpc_stride, int fail,
118.                                     int normalize)

libavcodec/lpc.h:116:1: Parameter `*autoc`
    114.  * Produce LPC coefficients from autocorrelation data.
    115.  */
    116. static inline int compute_lpc_coefs(const LPC_TYPE *autoc, int max_order,
         ^
    117.                                     LPC_TYPE *lpc, int lpc_stride, int fail,
    118.                                     int normalize)

libavcodec/lpc.h:135:36: Array access: Offset: [-34, 35] (⇐ [0, 1] + [-34, 34]) Size: 37 by call to `backward_filter` 
    133.         if (normalize) {
    134.             for(j=0; j<i; j++)
    135.                 r -= lpc_last[j] * autoc[i-j-1];
                                            ^
    136. 
    137.             r /= err;
