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309 lines
4.1 KiB
Go
309 lines
4.1 KiB
Go
9 years ago
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package dmr
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const (
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PayloadBits = 98 + 10 + 48 + 10 + 98
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PayloadSize = 33
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InfoHalfBits = 98
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InfoBits = 2 * InfoHalfBits
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SlotTypeHalfBits = 10
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SlotTypeBits = 2 * SlotTypeHalfBits
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SignalBits = 48
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SyncOffsetBits = InfoHalfBits + SlotTypeHalfBits
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SyncBits = SignalBits
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VoiceHalfBits = 108
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VoiceBits = 2 * VoiceHalfBits
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EMBHalfBits = 8
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EMBBits = 2 * EMBHalfBits
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EMBSignallingLCFragmentBits = 32
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)
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9 years ago
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// Because Go doesn't have binary literals ("We've found hex and octal to be sufficient")
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const (
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B00000000 = iota
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B00000001
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B00000010
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B00000011
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B00000100
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B00000101
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B00000110
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B00000111
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B00001000
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B00001001
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B00001010
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B00001011
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B00001100
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B00001101
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B00001110
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B00001111
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B00010000
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B00010001
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B00010010
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B00010011
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B00010100
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B00010101
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B00010110
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B00010111
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B00011000
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B00011001
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B00011010
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B00011011
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B00011100
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B00011101
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B00011110
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B00011111
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B00100000
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B00100001
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B00100010
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B00100011
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B00100100
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B00100101
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B00100110
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B00100111
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B00101000
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B00101001
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B00101010
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B00101011
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B00101100
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B00101101
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B00101110
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B00101111
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B00110000
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B00110001
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B00110010
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B00110011
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B00110100
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B00110101
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B00110110
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B00110111
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B00111000
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B00111001
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B00111010
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B00111011
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B00111100
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B00111101
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B00111110
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B00111111
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B01000000
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B01000001
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B01000010
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B01000011
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B01000100
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B01000101
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B01000110
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B01000111
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B01001000
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B01001001
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B01001010
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B01001011
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B01001100
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B01001101
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B01001110
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B01001111
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B01010000
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B01010001
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B01010010
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B01010011
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B01010100
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B01010101
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B01010110
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B01010111
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B01011000
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B01011001
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B01011010
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B01011011
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B01011100
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B01011101
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B01011110
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B01011111
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B01100000
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B01100001
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B01100010
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B01100011
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B01100100
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B01100101
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B01100110
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B01100111
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B01101000
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B01101001
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B01101010
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B01101011
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B01101100
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B01101101
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B01101110
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B01101111
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B01110000
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B01110001
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B01110010
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B01110011
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B01110100
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B01110101
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B01110110
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B01110111
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B01111000
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B01111001
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B01111010
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B01111011
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B01111100
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B01111101
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B01111110
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B01111111
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B10000000
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B10000001
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B10000010
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B10000011
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B10000100
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B10000101
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B10000110
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B10000111
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B10001000
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B10001001
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B10001010
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B10001011
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B10001100
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B10001101
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B10001110
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B10001111
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B10010000
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B10010001
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B10010010
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B10010011
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B10010100
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B10010101
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B10010110
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B10010111
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B10011000
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B10011001
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B10011010
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B10011011
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B10011100
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B10011101
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B10011110
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B10011111
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B10100000
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B10100001
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B10100010
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B10100011
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B10100100
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B10100101
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B10100110
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B10100111
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B10101000
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B10101001
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B10101010
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B10101011
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B10101100
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B10101101
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B10101110
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B10101111
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B10110000
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B10110001
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B10110010
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B10110011
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B10110100
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B10110101
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B10110110
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B10110111
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B10111000
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B10111001
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B10111010
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B10111011
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B10111100
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B10111101
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B10111110
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B10111111
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B11000000
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B11000001
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B11000010
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B11000011
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B11000100
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B11000101
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B11000110
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B11000111
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B11001000
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B11001001
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B11001010
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B11001011
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B11001100
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B11001101
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B11001110
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B11001111
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B11010000
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B11010001
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B11010010
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B11010011
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B11010100
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B11010101
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B11010110
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B11010111
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B11011000
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B11011001
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B11011010
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B11011011
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B11011100
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B11011101
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B11011110
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B11011111
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B11100000
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B11100001
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B11100010
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B11100011
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B11100100
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B11100101
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B11100110
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B11100111
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B11101000
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B11101001
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B11101010
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B11101011
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B11101100
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B11101101
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B11101110
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B11101111
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B11110000
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B11110001
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B11110010
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B11110011
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B11110100
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B11110101
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B11110110
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B11110111
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B11111000
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B11111001
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B11111010
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B11111011
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B11111100
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B11111101
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B11111110
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B11111111
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)
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9 years ago
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// BytesToBits converts a byte slice to a byte slice representing the individual data bits.
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func BytesToBits(data []byte) []byte {
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var bits = make([]byte, len(data)*8)
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for i := 0; i < len(data); i++ {
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copy(bits[i*8:], toBits(data[i]))
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}
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return bits
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}
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func toBits(b byte) []byte {
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var o = make([]byte, 8)
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for bit, mask := 0, byte(128); bit < 8; bit, mask = bit+1, mask>>1 {
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if b&mask != 0 {
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o[bit] = 1
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}
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}
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return o
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}
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// BitsToBytes converts a byte slice of bits to a byte slice.
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func BitsToBytes(bits []byte) []byte {
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var data = make([]byte, (len(bits)+7)/8)
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for i, b := range bits {
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if b == 0x01 {
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data[i/8] |= (1 << byte(7-(i%8)))
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}
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}
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return data
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}
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