34 lines
792 B
Go
34 lines
792 B
Go
// Package reedsolomon ...
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// ref to doc: https://en.wikiversity.org/wiki/Reed%E2%80%93Solomon_codes_for_coders#Polynomial_division
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// ref to project: github.com/skip2/go-qrcode/reedsolomon
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package reedsolomon
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import (
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"github.com/yeqown/reedsolomon/binary"
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)
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type word byte // 8bit as a word
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// Encode ...
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func Encode(bin *binary.Binary, numECWords int) *binary.Binary {
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if bin.Len()%8 != 0 {
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panic("could not deal with binary times 8bits")
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}
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// generate polynomial
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generator := rsGenPoly(numECWords)
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// poly div
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remainder := polyDiv(bin.Bytes(), generator)
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// append error correction stream
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bout := bin.Copy()
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bout.AppendBytes(remainder...)
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return bout
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}
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// Decode ...
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// TODO: finish this ~
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func Decode(bin *binary.Binary, numECWords int) *binary.Binary {
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return nil
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}
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