libavcodec/wmv2.c:86: error: Buffer Overrun L2
  Offset: [5, 29] (⇐ [0, 24] + 5) Size: 6 by call to `wmv2_add_block`.

libavcodec/wmv2.c:86:5: Call
84.     Wmv2Context *const w = (Wmv2Context *) s;
85. 
86.     wmv2_add_block(w, block1[0], dest_y,                       s->linesize, 0);
        ^
87.     wmv2_add_block(w, block1[1], dest_y + 8,                   s->linesize, 1);
88.     wmv2_add_block(w, block1[2], dest_y + 8 * s->linesize,     s->linesize, 2);

libavcodec/wmv2.c:55:1: Parameter `n`
  53. }
  54. 
  55. static void wmv2_add_block(Wmv2Context *w, int16_t *block1,
      ^
  56.                            uint8_t *dst, int stride, int n)
  57. {

libavcodec/wmv2.c:67:13: Call
  65.         case 1:
  66.             ff_simple_idct84_add(dst, stride, block1);
  67.             ff_simple_idct84_add(dst + 4 * stride, stride, w->abt_block2[n]);
                  ^
  68.             s->bdsp.clear_block(w->abt_block2[n]);
  69.             break;

libavcodec/simple_idct.c:176:1: Parameter `*block`
    174. }
    175. 
    176. void ff_simple_idct84_add(uint8_t *dest, int line_size, int16_t *block)
         ^
    177. {
    178.     int i;

libavcodec/simple_idct.c:182:9: Call
    180.     /* IDCT8 on each line */
    181.     for(i=0; i<4; i++) {
    182.         idctRowCondDC_8(block + i*8, 0);
                 ^
    183.     }
    184. 

libavcodec/simple_idct_template.c:90:1: <Length trace>
88. #endif
89. 
90. static inline void FUNC(idctRowCondDC)(int16_t *row, int extra_shift)
    ^
91. {
92.     int a0, a1, a2, a3, b0, b1, b2, b3;

libavcodec/simple_idct_template.c:90:1: Parameter `*row`
      88. #endif
      89. 
      90. static inline void FUNC(idctRowCondDC)(int16_t *row, int extra_shift)
          ^
      91. {
      92.     int a0, a1, a2, a3, b0, b1, b2, b3;

libavcodec/simple_idct_template.c:152:9: Array access: Offset: [5, 29] (⇐ [0, 24] + 5) Size: 6 by call to `wmv2_add_block` 
      150.         a3 +=   W4*row[4] - W6*row[6];
      151. 
      152.         MAC(b0,  W5, row[5]);
                   ^
      153.         MAC(b0,  W7, row[7]);
      154. 

static inline void FUNC(idctRowCondDC)(int16_t *row, int extra_shift)
{
    int a0, a1, a2, a3, b0, b1, b2, b3;
#if HAVE_FAST_64BIT
#define ROW0_MASK (0xffffLL << 48 * HAVE_BIGENDIAN)
    if (((((uint64_t *)row)[0] & ~ROW0_MASK) | ((uint64_t *)row)[1]) == 0) {
        uint64_t temp;
        if (DC_SHIFT - extra_shift > 0) {
            temp = (row[0] << (DC_SHIFT - extra_shift)) & 0xffff;
        } else {
            temp = (row[0] >> (extra_shift - DC_SHIFT)) & 0xffff;
        }
        temp += temp << 16;
        temp += temp << 32;
        ((uint64_t *)row)[0] = temp;
        ((uint64_t *)row)[1] = temp;
        return;
    }
#else
    if (!(((uint32_t*)row)[1] |
          ((uint32_t*)row)[2] |
          ((uint32_t*)row)[3] |
          row[1])) {
        uint32_t temp;
        if (DC_SHIFT - extra_shift > 0) {
            temp = (row[0] << (DC_SHIFT - extra_shift)) & 0xffff;
        } else {
            temp = (row[0] >> (extra_shift - DC_SHIFT)) & 0xffff;
        }
        temp += temp << 16;
        ((uint32_t*)row)[0]=((uint32_t*)row)[1] =
            ((uint32_t*)row)[2]=((uint32_t*)row)[3] = temp;
        return;
    }
#endif
    a0 = (W4 * row[0]) + (1 << (ROW_SHIFT - 1));
    a1 = a0;
    a2 = a0;
    a3 = a0;
    a0 += W2 * row[2];
    a1 += W6 * row[2];
    a2 -= W6 * row[2];
    a3 -= W2 * row[2];
    b0 = MUL(W1, row[1]);
    MAC(b0, W3, row[3]);
    b1 = MUL(W3, row[1]);
    MAC(b1, -W7, row[3]);
    b2 = MUL(W5, row[1]);
    MAC(b2, -W1, row[3]);
    b3 = MUL(W7, row[1]);
    MAC(b3, -W5, row[3]);
    if (AV_RN64A(row + 4)) {
        a0 +=   W4*row[4] + W6*row[6];
        a1 += - W4*row[4] - W2*row[6];
        a2 += - W4*row[4] + W2*row[6];
        a3 +=   W4*row[4] - W6*row[6];
        MAC(b0,  W5, row[5]);
        MAC(b0,  W7, row[7]);
        MAC(b1, -W1, row[5]);
        MAC(b1, -W5, row[7]);
        MAC(b2,  W7, row[5]);
        MAC(b2,  W3, row[7]);
        MAC(b3,  W3, row[5]);
        MAC(b3, -W1, row[7]);
    }
    row[0] = (a0 + b0) >> (ROW_SHIFT + extra_shift);
    row[7] = (a0 - b0) >> (ROW_SHIFT + extra_shift);
    row[1] = (a1 + b1) >> (ROW_SHIFT + extra_shift);
    row[6] = (a1 - b1) >> (ROW_SHIFT + extra_shift);
    row[2] = (a2 + b2) >> (ROW_SHIFT + extra_shift);
    row[5] = (a2 - b2) >> (ROW_SHIFT + extra_shift);
    row[3] = (a3 + b3) >> (ROW_SHIFT + extra_shift);
    row[4] = (a3 - b3) >> (ROW_SHIFT + extra_shift);
}
['void ff_wmv2_add_mb(MpegEncContext *s, int16_t block1[6][64],\n                    uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr)\n{\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)\n        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, int16_t *block1,\n                           uint8_t *dst, int stride, int n)\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            w->wdsp.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            s->bdsp.clear_block(w->abt_block2[n]);\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            s->bdsp.clear_block(w->abt_block2[n]);\n            break;\n        default:\n            av_log(s->avctx, AV_LOG_ERROR, "internal error in WMV2 abt\\n");\n        }\n    }\n}', 'void ff_simple_idct84_add(uint8_t *dest, int line_size, int16_t *block)\n{\n    int i;\n    for(i=0; i<4; i++) {\n        idctRowCondDC_8(block + i*8, 0);\n    }\n    for(i=0;i<8;i++) {\n        idct4col_add(dest + i, line_size, block + i);\n    }\n}', 'static inline void FUNC(idctRowCondDC)(int16_t *row, int extra_shift)\n{\n    int a0, a1, a2, a3, b0, b1, b2, b3;\n#if HAVE_FAST_64BIT\n#define ROW0_MASK (0xffffLL << 48 * HAVE_BIGENDIAN)\n    if (((((uint64_t *)row)[0] & ~ROW0_MASK) | ((uint64_t *)row)[1]) == 0) {\n        uint64_t temp;\n        if (DC_SHIFT - extra_shift > 0) {\n            temp = (row[0] << (DC_SHIFT - extra_shift)) & 0xffff;\n        } else {\n            temp = (row[0] >> (extra_shift - DC_SHIFT)) & 0xffff;\n        }\n        temp += temp << 16;\n        temp += temp << 32;\n        ((uint64_t *)row)[0] = temp;\n        ((uint64_t *)row)[1] = temp;\n        return;\n    }\n#else\n    if (!(((uint32_t*)row)[1] |\n          ((uint32_t*)row)[2] |\n          ((uint32_t*)row)[3] |\n          row[1])) {\n        uint32_t temp;\n        if (DC_SHIFT - extra_shift > 0) {\n            temp = (row[0] << (DC_SHIFT - extra_shift)) & 0xffff;\n        } else {\n            temp = (row[0] >> (extra_shift - DC_SHIFT)) & 0xffff;\n        }\n        temp += temp << 16;\n        ((uint32_t*)row)[0]=((uint32_t*)row)[1] =\n            ((uint32_t*)row)[2]=((uint32_t*)row)[3] = temp;\n        return;\n    }\n#endif\n    a0 = (W4 * row[0]) + (1 << (ROW_SHIFT - 1));\n    a1 = a0;\n    a2 = a0;\n    a3 = a0;\n    a0 += W2 * row[2];\n    a1 += W6 * row[2];\n    a2 -= W6 * row[2];\n    a3 -= W2 * row[2];\n    b0 = MUL(W1, row[1]);\n    MAC(b0, W3, row[3]);\n    b1 = MUL(W3, row[1]);\n    MAC(b1, -W7, row[3]);\n    b2 = MUL(W5, row[1]);\n    MAC(b2, -W1, row[3]);\n    b3 = MUL(W7, row[1]);\n    MAC(b3, -W5, row[3]);\n    if (AV_RN64A(row + 4)) {\n        a0 +=   W4*row[4] + W6*row[6];\n        a1 += - W4*row[4] - W2*row[6];\n        a2 += - W4*row[4] + W2*row[6];\n        a3 +=   W4*row[4] - W6*row[6];\n        MAC(b0,  W5, row[5]);\n        MAC(b0,  W7, row[7]);\n        MAC(b1, -W1, row[5]);\n        MAC(b1, -W5, row[7]);\n        MAC(b2,  W7, row[5]);\n        MAC(b2,  W3, row[7]);\n        MAC(b3,  W3, row[5]);\n        MAC(b3, -W1, row[7]);\n    }\n    row[0] = (a0 + b0) >> (ROW_SHIFT + extra_shift);\n    row[7] = (a0 - b0) >> (ROW_SHIFT + extra_shift);\n    row[1] = (a1 + b1) >> (ROW_SHIFT + extra_shift);\n    row[6] = (a1 - b1) >> (ROW_SHIFT + extra_shift);\n    row[2] = (a2 + b2) >> (ROW_SHIFT + extra_shift);\n    row[5] = (a2 - b2) >> (ROW_SHIFT + extra_shift);\n    row[3] = (a3 + b3) >> (ROW_SHIFT + extra_shift);\n    row[4] = (a3 - b3) >> (ROW_SHIFT + extra_shift);\n}']