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1 // Compress/BZip2Const.h
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2
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3 #ifndef __COMPRESS_BZIP2_CONST_H
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4 #define __COMPRESS_BZIP2_CONST_H
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5
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6 namespace NCompress {
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7 namespace NBZip2 {
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8
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9 const Byte kArSig0 = 'B';
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10 const Byte kArSig1 = 'Z';
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11 const Byte kArSig2 = 'h';
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12 const Byte kArSig3 = '0';
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13
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14 const Byte kFinSig0 = 0x17;
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15 const Byte kFinSig1 = 0x72;
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16 const Byte kFinSig2 = 0x45;
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17 const Byte kFinSig3 = 0x38;
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18 const Byte kFinSig4 = 0x50;
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19 const Byte kFinSig5 = 0x90;
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20
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21 const Byte kBlockSig0 = 0x31;
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22 const Byte kBlockSig1 = 0x41;
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23 const Byte kBlockSig2 = 0x59;
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24 const Byte kBlockSig3 = 0x26;
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25 const Byte kBlockSig4 = 0x53;
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26 const Byte kBlockSig5 = 0x59;
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27
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28 const int kNumOrigBits = 24;
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29
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30 const int kNumTablesBits = 3;
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31 const int kNumTablesMin = 2;
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32 const int kNumTablesMax = 6;
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33
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34 const int kNumLevelsBits = 5;
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35
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36 const int kMaxHuffmanLen = 20; // Check it
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37
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38 const int kMaxAlphaSize = 258;
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39
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40 const int kGroupSize = 50;
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41
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42 const int kBlockSizeMultMin = 1;
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43 const int kBlockSizeMultMax = 9;
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44 const UInt32 kBlockSizeStep = 100000;
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45 const UInt32 kBlockSizeMax = kBlockSizeMultMax * kBlockSizeStep;
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46
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47 const int kNumSelectorsBits = 15;
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48 const UInt32 kNumSelectorsMax = (2 + (kBlockSizeMax / kGroupSize));
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49
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50 const int kRleModeRepSize = 4;
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51
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52 }}
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53
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54 #endif
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