25 lines
468 B
Go
25 lines
468 B
Go
package coding
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import (
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"bytes"
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"github.com/icza/bitio"
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"github.com/samber/lo"
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"github.com/securemesh/coding/codes"
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"github.com/securemesh/coding/state"
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)
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func Encode(st *state.State, msg []byte) []byte {
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buf := &bytes.Buffer{}
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w := bitio.NewWriter(buf)
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for _, b := range msg {
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index := st.IncrementSymbol(b)
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code := codes.CodeForIndex(index)
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lo.Must0(w.WriteBits(uint64(code.Value), uint8(code.Bits)))
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}
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lo.Must0(w.Close())
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return buf.Bytes()
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}
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