[XviD-devel] severe bug found in bitstream.h of xvid 1.1.1!

[liang jian]

    There is a severe bug in BitstreamInit() function:

     /* preserve the intervening bytes */
     if (bs->initpos > 0)
         bs->buf = bs->bufa & (0xffffffff << (32 - bs->initpos));
     else
         bs->buf = 0;

    bs->pos = bs->initpos = bitpos*8;
    bs->length = length;

    The bs->initpos should be changed to initpos, because the value of
bs->initpos has not been set when it is being referenced.