libavcodec/mss3.c:519: error: Uninitialized Value
  The value read from vec[_] was never initialized.

libavcodec/mss3.c:519:16: 
517.             prev_line[i] = A;
518.             if (A < 4)
519.                dst[i] = vec[A];
                    ^
520.             else
521.                dst[i] = rac_get_model256_sym(c, &ic->esc_model);

static void decode_image_block(RangeCoder *c, ImageBlockCoder *ic,
                               uint8_t *dst, int stride, int block_size)
{
    int i, j;
    int vec_size;
    int vec[4];
    int prev_line[16];
    int A, B, C;
    vec_size = rac_get_model_sym(c, &ic->vec_size_model) + 2;
    for (i = 0; i < vec_size; i++)
        vec[i] = rac_get_model256_sym(c, &ic->vec_entry_model);
    for (; i < 4; i++)
        vec[i] = 0;
    memset(prev_line, 0, sizeof(prev_line));
    for (j = 0; j < block_size; j++) {
        A = 0;
        B = 0;
        for (i = 0; i < block_size; i++) {
            C = B;
            B = prev_line[i];
            A = rac_get_model_sym(c, &ic->vq_model[A + B * 5 + C * 25]);
            prev_line[i] = A;
            if (A < 4)
               dst[i] = vec[A];
            else
               dst[i] = rac_get_model256_sym(c, &ic->esc_model);
        }
        dst += stride;
    }
}
['static void decode_image_block(RangeCoder *c, ImageBlockCoder *ic,\n                               uint8_t *dst, int stride, int block_size)\n{\n    int i, j;\n    int vec_size;\n    int vec[4];\n    int prev_line[16];\n    int A, B, C;\n    vec_size = rac_get_model_sym(c, &ic->vec_size_model) + 2;\n    for (i = 0; i < vec_size; i++)\n        vec[i] = rac_get_model256_sym(c, &ic->vec_entry_model);\n    for (; i < 4; i++)\n        vec[i] = 0;\n    memset(prev_line, 0, sizeof(prev_line));\n    for (j = 0; j < block_size; j++) {\n        A = 0;\n        B = 0;\n        for (i = 0; i < block_size; i++) {\n            C = B;\n            B = prev_line[i];\n            A = rac_get_model_sym(c, &ic->vq_model[A + B * 5 + C * 25]);\n            prev_line[i] = A;\n            if (A < 4)\n               dst[i] = vec[A];\n            else\n               dst[i] = rac_get_model256_sym(c, &ic->esc_model);\n        }\n        dst += stride;\n    }\n}']