libavcodec/h264_mb.c:724: error: Buffer Overrun L2
  Offset: [1+min(0, `p`), 13+max(0, `p`)] (⇐ [min(0, `p`), max(0, `p`)] + [1, 13]) Size: 3 by call to `ff_svq3_luma_dc_dequant_idct_c`.

libavcodec/h264_mb.c:612:1: Parameter `p`
610. }
611. 
612. static av_always_inline void hl_decode_mb_predict_luma(const H264Context *h,
     ^
613.                                                        H264SliceContext *sl,
614.                                                        int mb_type, int is_h264,

libavcodec/h264_mb.c:724:13: Call
722.             }
723.         } else if (CONFIG_SVQ3_DECODER)
724.             ff_svq3_luma_dc_dequant_idct_c(sl->mb + p * 256,
                 ^
725.                                            sl->mb_luma_dc[p], qscale);
726.     }

libavcodec/svq3.c:170:10: <Offset trace>
168.     static const uint8_t x_offset[4] = { 0, 1 * stride, 4 * stride, 5 * stride };
169. 
170.     for (i = 0; i < 4; i++) {
              ^
171.         const int z0 = 13 * (input[4 * i + 0] +      input[4 * i + 2]);
172.         const int z1 = 13 * (input[4 * i + 0] -      input[4 * i + 2]);

libavcodec/svq3.c:170:10: Assignment
  168.     static const uint8_t x_offset[4] = { 0, 1 * stride, 4 * stride, 5 * stride };
  169. 
  170.     for (i = 0; i < 4; i++) {
                ^
  171.         const int z0 = 13 * (input[4 * i + 0] +      input[4 * i + 2]);
  172.         const int z1 = 13 * (input[4 * i + 0] -      input[4 * i + 2]);

libavcodec/svq3.c:162:1: <Length trace>
160. };
161. 
162. void ff_svq3_luma_dc_dequant_idct_c(int16_t *output, int16_t *input, int qp)
     ^
163. {
164.     const int qmul = svq3_dequant_coeff[qp];

libavcodec/svq3.c:162:1: Parameter `*input`
  160. };
  161. 
  162. void ff_svq3_luma_dc_dequant_idct_c(int16_t *output, int16_t *input, int qp)
       ^
  163. {
  164.     const int qmul = svq3_dequant_coeff[qp];

libavcodec/svq3.c:173:30: Array access: Offset: [1+min(0, p), 13+max(0, p)] (⇐ [min(0, p), max(0, p)] + [1, 13]) Size: 3 by call to `ff_svq3_luma_dc_dequant_idct_c` 
  171.         const int z0 = 13 * (input[4 * i + 0] +      input[4 * i + 2]);
  172.         const int z1 = 13 * (input[4 * i + 0] -      input[4 * i + 2]);
  173.         const int z2 =  7 *  input[4 * i + 1] - 17 * input[4 * i + 3];
                                    ^
  174.         const int z3 = 17 *  input[4 * i + 1] +  7 * input[4 * i + 3];
  175. 
