libavcodec/wmv2.c:86: error: Buffer Overrun L1
  Offset: [61, 64] (⇐ [5, 8] + 56) Size: 6 by call to `wmv2_add_block`.

libavcodec/wmv2.c:86:5: Call
84. 
85.     wmv2_add_block(w, block1[4], dest_cb                   , s->uvlinesize, 4);
86.     wmv2_add_block(w, block1[5], dest_cr                   , s->uvlinesize, 5);
        ^
87. }
88. 

libavcodec/wmv2.c:51:1: Parameter `n`
  49. }
  50. 
  51. static void wmv2_add_block(Wmv2Context *w, int16_t *block1, uint8_t *dst, int stride, int n){
      ^
  52.     MpegEncContext * const s= &w->s;
  53. 

libavcodec/wmv2.c:66:9: Call
  64.     case 2:
  65.         ff_simple_idct48_add(dst           , stride, block1);
  66.         ff_simple_idct48_add(dst + 4       , stride, w->abt_block2[n]);
              ^
  67.         s->dsp.clear_block(w->abt_block2[n]);
  68.         break;

libavcodec/simple_idct.c:192:1: Parameter `*block`
    190. }
    191. 
    192. void ff_simple_idct48_add(uint8_t *dest, int line_size, int16_t *block)
         ^
    193. {
    194.     int i;

libavcodec/simple_idct.c:203:9: Call
    201.     /* IDCT8 and store */
    202.     for(i=0; i<4; i++){
    203.         idctSparseColAdd_8(dest + i, line_size, block + i);
                 ^
    204.     }
    205. }

libavcodec/simple_idct_template.c:247:1: <Length trace>
245. }
246. 
247. static inline void FUNC(idctSparseColAdd)(pixel *dest, int line_size,
     ^
248.                                           int16_t *col)
249. {

libavcodec/simple_idct_template.c:247:1: Parameter `*col`
      245. }
      246. 
      247. static inline void FUNC(idctSparseColAdd)(pixel *dest, int line_size,
           ^
      248.                                           int16_t *col)
      249. {

libavcodec/simple_idct_template.c:252:5: Array access: Offset: [61, 64] (⇐ [5, 8] + 56) Size: 6 by call to `wmv2_add_block` 
      250.     int a0, a1, a2, a3, b0, b1, b2, b3;
      251. 
      252.     IDCT_COLS;
               ^
      253. 
      254.     dest[0] = av_clip_pixel(dest[0] + ((a0 + b0) >> COL_SHIFT));
