编码和解码同步安全整数

Question

What is the best way to encode and decode synchsafe integers?

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A synchsafe integer (used in ID3v2 tags) is one in which the most significant bit is always 0 and is disregarded.

For example, 11111111 (255) as a synchsafe integer is 00000001 01111111 (383); and 11111111 11111111 is equivalent to a synchsafe 00000011 01111111 01111111 .

Answer 1

解决方案可在Wikipedia synchsafe页面上找到 。