Variable-length Quantity - Other Variants

Other Variants

In the data format for Unreal Packages used by the Unreal Engine, a variable length quantity scheme called Compact Indices is used. The only difference in this encoding is that the first VLQ has the sixth binary digit reserved to indicate whether the encoded integer is positive or negative.

If A is 0, then this is the last VLQ octet of the integer. If A is 1, then another VLQ octet follows.

If B is 0, then the VLQ represents a positive integer. If B is 1, then the VLQ represents a negative number.

C is a 6-bit number and n is the position of the VLQ octet where C₀ is the least significant. The VLQ octets are arranged most significant first in a stream.

Any consecutive VLQ octet follows the general structure.