libavcodec/wmv2.c:70: error: Buffer Overrun L1
  Offset: [8, 64] (⇐ [5, 61] + 3) Size: 6 by call to `wmv2_add_block`.

libavcodec/wmv2.c:70:5: Call
68. 
69.     wmv2_add_block(w, block1[4], dest_cb                   , s->uvlinesize, 4);
70.     wmv2_add_block(w, block1[5], dest_cr                   , s->uvlinesize, 5);
        ^
71. }
72. 

libavcodec/wmv2.c:35:1: Parameter `n`
  33. }
  34. 
  35. static void wmv2_add_block(Wmv2Context *w, DCTELEM *block1, uint8_t *dst, int stride, int n){
      ^
  36.     MpegEncContext * const s= &w->s;
  37. 

libavcodec/wmv2.c:50:9: Call
  48.     case 2:
  49.         ff_simple_idct48_add(dst           , stride, block1);
  50.         ff_simple_idct48_add(dst + 4       , stride, w->abt_block2[n]);
              ^
  51.         memset(w->abt_block2[n], 0, 64*sizeof(DCTELEM));
  52.         break;

libavcodec/simple_idct.c:573:1: Parameter `*block`
    571. }
    572. 
    573. void ff_simple_idct48_add(uint8_t *dest, int line_size, DCTELEM *block)
         ^
    574. {
    575.     int i;

libavcodec/simple_idct.c:579:9: Call
    577.     /* IDCT4 on each line */
    578.     for(i=0; i<8; i++) {
    579.         idct4row(block + i*8);
                 ^
    580.     }
    581. 

libavcodec/simple_idct.c:539:1: <Length trace>
537. #define R3 R_FIX(0.5)
538. #define R_SHIFT 11
539. static inline void idct4row(DCTELEM *row)
     ^
540. {
541.     int c0, c1, c2, c3, a0, a1, a2, a3;

libavcodec/simple_idct.c:539:1: Parameter `*row`
      537. #define R3 R_FIX(0.5)
      538. #define R_SHIFT 11
      539. static inline void idct4row(DCTELEM *row)
           ^
      540. {
      541.     int c0, c1, c2, c3, a0, a1, a2, a3;

libavcodec/simple_idct.c:547:10: Array access: Offset: [8, 64] (⇐ [5, 61] + 3) Size: 6 by call to `wmv2_add_block` 
      545.     a1 = row[1];
      546.     a2 = row[2];
      547.     a3 = row[3];
                    ^
      548.     c0 = (a0 + a2)*R3 + (1 << (R_SHIFT - 1));
      549.     c2 = (a0 - a2)*R3 + (1 << (R_SHIFT - 1));

static inline void idct4row(DCTELEM *row)
{
    int c0, c1, c2, c3, a0, a1, a2, a3;
    a0 = row[0];
    a1 = row[1];
    a2 = row[2];
    a3 = row[3];
    c0 = (a0 + a2)*R3 + (1 << (R_SHIFT - 1));
    c2 = (a0 - a2)*R3 + (1 << (R_SHIFT - 1));
    c1 = a1 * R1 + a3 * R2;
    c3 = a1 * R2 - a3 * R1;
    row[0]= (c0 + c1) >> R_SHIFT;
    row[1]= (c2 + c3) >> R_SHIFT;
    row[2]= (c2 - c3) >> R_SHIFT;
    row[3]= (c0 - c1) >> R_SHIFT;
}
['void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block1[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr){\n    Wmv2Context * const w= (Wmv2Context*)s;\n    wmv2_add_block(w, block1[0], dest_y                    , s->linesize, 0);\n    wmv2_add_block(w, block1[1], dest_y + 8                , s->linesize, 1);\n    wmv2_add_block(w, block1[2], dest_y +     8*s->linesize, s->linesize, 2);\n    wmv2_add_block(w, block1[3], dest_y + 8 + 8*s->linesize, s->linesize, 3);\n    if(s->flags&CODEC_FLAG_GRAY) return;\n    wmv2_add_block(w, block1[4], dest_cb                   , s->uvlinesize, 4);\n    wmv2_add_block(w, block1[5], dest_cr                   , s->uvlinesize, 5);\n}', 'static void wmv2_add_block(Wmv2Context *w, DCTELEM *block1, uint8_t *dst, int stride, int n){\n    MpegEncContext * const s= &w->s;\n  if (s->block_last_index[n] >= 0) {\n    switch(w->abt_type_table[n]){\n    case 0:\n        s->dsp.idct_add (dst, stride, block1);\n        break;\n    case 1:\n        ff_simple_idct84_add(dst           , stride, block1);\n        ff_simple_idct84_add(dst + 4*stride, stride, w->abt_block2[n]);\n        memset(w->abt_block2[n], 0, 64*sizeof(DCTELEM));\n        break;\n    case 2:\n        ff_simple_idct48_add(dst           , stride, block1);\n        ff_simple_idct48_add(dst + 4       , stride, w->abt_block2[n]);\n        memset(w->abt_block2[n], 0, 64*sizeof(DCTELEM));\n        break;\n    default:\n        av_log(s->avctx, AV_LOG_ERROR, "internal error in WMV2 abt\\n");\n    }\n  }\n}', 'void ff_simple_idct48_add(uint8_t *dest, int line_size, DCTELEM *block)\n{\n    int i;\n    for(i=0; i<8; i++) {\n        idct4row(block + i*8);\n    }\n    for(i=0; i<4; i++){\n        idctSparseColAdd(dest + i, line_size, block + i);\n    }\n}', 'static inline void idct4row(DCTELEM *row)\n{\n    int c0, c1, c2, c3, a0, a1, a2, a3;\n    a0 = row[0];\n    a1 = row[1];\n    a2 = row[2];\n    a3 = row[3];\n    c0 = (a0 + a2)*R3 + (1 << (R_SHIFT - 1));\n    c2 = (a0 - a2)*R3 + (1 << (R_SHIFT - 1));\n    c1 = a1 * R1 + a3 * R2;\n    c3 = a1 * R2 - a3 * R1;\n    row[0]= (c0 + c1) >> R_SHIFT;\n    row[1]= (c2 + c3) >> R_SHIFT;\n    row[2]= (c2 - c3) >> R_SHIFT;\n    row[3]= (c0 - c1) >> R_SHIFT;\n}']