This function is always called with a non-negative argument, so
those special cases are not needed. In the places the argument
might be zero, the return value for a zero argument does not matter
since it would then be used to scale an array full of zeros.
Signed-off-by: Mans Rullgard <mans@mansr.com>
*/
static int normalize_bits(int num, int width)
{
- if (!num)
- return 0;
- if (num == -1)
- return width;
- if (num < 0)
- num = ~num;
-
return width - av_log2(num) - 1;
}