static struct AVHashContext *hash;
-static const char *const binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
-static const char *const decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "P" };
+static const struct {
+ double bin_val;
+ double dec_val;
+ const char *bin_str;
+ const char *dec_str;
+} si_prefixes[] = {
+ { 1.0, 1.0, "", "" },
+ { 1.024e3, 1e3, "Ki", "K" },
+ { 1.048576e6, 1e6, "Mi", "M" },
+ { 1.073741824e9, 1e9, "Gi", "G" },
+ { 1.099511627776e12, 1e12, "Ti", "T" },
+ { 1.125899906842624e15, 1e15, "Pi", "P" },
+};
static const char unit_second_str[] = "s" ;
static const char unit_hertz_str[] = "Hz" ;
if (uv.unit == unit_byte_str && use_byte_value_binary_prefix) {
index = (long long int) (log2(vald)) / 10;
- index = av_clip(index, 0, FF_ARRAY_ELEMS(binary_unit_prefixes) - 1);
- vald /= exp2(index * 10);
- prefix_string = binary_unit_prefixes[index];
+ index = av_clip(index, 0, FF_ARRAY_ELEMS(si_prefixes) - 1);
+ vald /= si_prefixes[index].bin_val;
+ prefix_string = si_prefixes[index].bin_str;
} else {
index = (long long int) (log10(vald)) / 3;
- index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) - 1);
- vald /= pow(10, index * 3);
- prefix_string = decimal_unit_prefixes[index];
+ index = av_clip(index, 0, FF_ARRAY_ELEMS(si_prefixes) - 1);
+ vald /= si_prefixes[index].dec_val;
+ prefix_string = si_prefixes[index].dec_str;
}
vali = vald;
}