libavcodec/svq3.c:651: error: Buffer Overrun L1
  Offset: [3, 15] Size: 3 by call to `svq3_luma_dc_dequant_idct_c`.

libavcodec/svq3.c:616:1: Parameter `s->mb_luma_dc[*]`
614. }
615. 
616. static av_always_inline void hl_decode_mb_predict_luma(SVQ3Context *s,
     ^
617.                                                        int mb_type,
618.                                                        const int *block_offset,

libavcodec/svq3.c:651:9: Call
649.     } else {
650.         s->hpc.pred16x16[s->intra16x16_pred_mode](dest_y, linesize);
651.         svq3_luma_dc_dequant_idct_c(s->mb, s->mb_luma_dc[0], qscale);
             ^
652.     }
653. }

libavcodec/svq3.c:213:10: <Offset trace>
211.     static const uint8_t x_offset[4] = { 0, 1 * stride, 4 * stride, 5 * stride };
212. 
213.     for (i = 0; i < 4; i++) {
              ^
214.         const int z0 = 13 * (input[4 * i + 0] +      input[4 * i + 2]);
215.         const int z1 = 13 * (input[4 * i + 0] -      input[4 * i + 2]);

libavcodec/svq3.c:213:10: Assignment
  211.     static const uint8_t x_offset[4] = { 0, 1 * stride, 4 * stride, 5 * stride };
  212. 
  213.     for (i = 0; i < 4; i++) {
                ^
  214.         const int z0 = 13 * (input[4 * i + 0] +      input[4 * i + 2]);
  215.         const int z1 = 13 * (input[4 * i + 0] -      input[4 * i + 2]);

libavcodec/svq3.c:205:1: <Length trace>
203. };
204. 
205. static void svq3_luma_dc_dequant_idct_c(int16_t *output, int16_t *input, int qp)
     ^
206. {
207.     const int qmul = svq3_dequant_coeff[qp];

libavcodec/svq3.c:205:1: Parameter `*input`
  203. };
  204. 
  205. static void svq3_luma_dc_dequant_idct_c(int16_t *output, int16_t *input, int qp)
       ^
  206. {
  207.     const int qmul = svq3_dequant_coeff[qp];

libavcodec/svq3.c:216:54: Array access: Offset: [3, 15] Size: 3 by call to `svq3_luma_dc_dequant_idct_c` 
  214.         const int z0 = 13 * (input[4 * i + 0] +      input[4 * i + 2]);
  215.         const int z1 = 13 * (input[4 * i + 0] -      input[4 * i + 2]);
  216.         const int z2 =  7 *  input[4 * i + 1] - 17 * input[4 * i + 3];
                                                            ^
  217.         const int z3 = 17 *  input[4 * i + 1] +  7 * input[4 * i + 3];
  218. 
