[2174] | 1 | from bitutil import * |
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| 2 | import marker_strms |
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| 3 | import div2_group_strms |
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| 4 | import logbase2_group_strms |
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| 5 | import div2_logbase2_group_strms |
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| 6 | import bit_byte_group_strms |
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| 7 | import sys |
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| 8 | |
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| 9 | class Basis_bits(): |
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| 10 | bit_0 = 0 |
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| 11 | bit_1 = 0 |
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| 12 | bit_2 = 0 |
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| 13 | bit_3 = 0 |
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| 14 | bit_4 = 0 |
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| 15 | bit_5 = 0 |
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| 16 | bit_6 = 0 |
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| 17 | bit_7 = 0 |
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| 18 | |
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| 19 | def Demo_div2(u8data, basis_bits): |
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| 20 | |
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| 21 | lgth = len(u8data) |
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| 22 | |
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[2291] | 23 | marker = marker_strms.Markers() |
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| 24 | marker_strms.Classify_marker(basis_bits, marker) |
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| 25 | marker_strms.Generate_marker(marker) |
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[2174] | 26 | |
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| 27 | groups = div2_group_strms.Groups() |
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[2291] | 28 | div2_group_strms.Gen_lgth_groups(marker, groups) |
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[2174] | 29 | |
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| 30 | print_aligned_streams([('Input Data', u8data), |
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[2291] | 31 | ('marker.spans', bitstream2string(marker.spans, lgth)), |
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| 32 | ('marker.starts', bitstream2string(marker.starts, lgth)), |
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| 33 | ('marker.follows', bitstream2string(marker.follows, lgth)), |
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[2174] | 34 | ('groups.starts', bitstream2string(groups.starts, lgth)), |
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| 35 | ('groups.follows', bitstream2string(groups.follows, lgth)), |
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| 36 | ('groups.follows_2', bitstream2string(groups.follows_2, lgth)), |
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| 37 | ('groups.follows_4', bitstream2string(groups.follows_4, lgth)), |
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| 38 | ('groups.follows_6', bitstream2string(groups.follows_6, lgth)), |
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| 39 | ('groups.follows_8', bitstream2string(groups.follows_8, lgth)), |
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| 40 | ('groups.follows_10', bitstream2string(groups.follows_10, lgth)), |
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| 41 | ('groups.follows_12', bitstream2string(groups.follows_12, lgth)), |
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| 42 | ('groups.follows_14', bitstream2string(groups.follows_14, lgth)), |
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| 43 | ('groups.follows_16', bitstream2string(groups.follows_16, lgth)), |
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| 44 | ('groups.follows_0', bitstream2string(groups.follows_0, lgth))]) |
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| 45 | |
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| 46 | def Demo_logbase2(u8data, basis_bits): |
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| 47 | |
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| 48 | lgth = len(u8data) |
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| 49 | |
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[2291] | 50 | marker = marker_strms.Markers() |
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| 51 | marker_strms.Classify_marker(basis_bits, marker) |
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| 52 | marker_strms.Generate_marker(marker) |
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[2174] | 53 | |
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| 54 | groups = logbase2_group_strms.Groups() |
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[2291] | 55 | logbase2_group_strms.Gen_lgth_groups(marker, groups) |
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[2174] | 56 | |
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| 57 | print_aligned_streams([('Input Data', u8data), |
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[2291] | 58 | ('marker.spans', bitstream2string(marker.spans, lgth)), |
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| 59 | ('marker.starts', bitstream2string(marker.starts, lgth)), |
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| 60 | ('marker.follows', bitstream2string(marker.follows, lgth)), |
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[2174] | 61 | ('groups.starts', bitstream2string(groups.starts, lgth)), |
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| 62 | ('groups.follows', bitstream2string(groups.follows, lgth)), |
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| 63 | ('groups.follows_1', bitstream2string(groups.follows_1, lgth)), |
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| 64 | ('groups.follows_2', bitstream2string(groups.follows_2, lgth)), |
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| 65 | ('groups.follows_4', bitstream2string(groups.follows_4, lgth)), |
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| 66 | ('groups.follows_8', bitstream2string(groups.follows_8, lgth)), |
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| 67 | ('groups.follows_16', bitstream2string(groups.follows_16, lgth)), |
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| 68 | ('groups.follows_0', bitstream2string(groups.follows_0, lgth))]) |
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| 69 | |
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| 70 | def Demo_div2_logbase2(u8data, basis_bits): |
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| 71 | |
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| 72 | lgth = len(u8data) |
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| 73 | |
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[2291] | 74 | marker = marker_strms.Markers() |
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| 75 | marker_strms.Classify_marker(basis_bits, marker) |
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| 76 | marker_strms.Generate_marker(marker) |
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[2174] | 77 | |
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| 78 | groups = div2_logbase2_group_strms.Groups() |
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[2291] | 79 | div2_logbase2_group_strms.Gen_lgth_groups(marker, groups) |
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[2174] | 80 | |
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| 81 | print_aligned_streams([('Input Data', u8data), |
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[2291] | 82 | ('marker.spans', bitstream2string(marker.spans, lgth)), |
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| 83 | ('marker.starts', bitstream2string(marker.starts, lgth)), |
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| 84 | ('marker.follows', bitstream2string(marker.follows, lgth)), |
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[2174] | 85 | ('groups.starts', bitstream2string(groups.starts, lgth)), |
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| 86 | ('groups.follows', bitstream2string(groups.follows, lgth)), |
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| 87 | ('groups.follows_2', bitstream2string(groups.follows_2, lgth)), |
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| 88 | ('groups.follows_4', bitstream2string(groups.follows_4, lgth)), |
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| 89 | ('groups.follows_6', bitstream2string(groups.follows_6, lgth)), |
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| 90 | ('groups.follows_8', bitstream2string(groups.follows_8, lgth)), |
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| 91 | ('groups.follows_16', bitstream2string(groups.follows_16, lgth)), |
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| 92 | ('groups.follows_0', bitstream2string(groups.follows_0, lgth))]) |
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| 93 | |
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| 94 | def Demo_bit_byte(u8data, basis_bits): |
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| 95 | |
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| 96 | lgth = len(u8data) |
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| 97 | |
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[2291] | 98 | marker = marker_strms.Markers() |
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| 99 | marker_strms.Classify_marker(basis_bits, marker) |
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| 100 | marker_strms.Generate_marker(marker) |
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[2174] | 101 | |
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| 102 | groups = bit_byte_group_strms.Groups() |
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[2291] | 103 | bit_byte_group_strms.Gen_lgth_groups(marker, groups) |
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[2174] | 104 | |
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| 105 | print_aligned_streams([('Input Data', u8data), |
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[2291] | 106 | ('marker.spans', bitstream2string(marker.spans, lgth)), |
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| 107 | ('marker.starts', bitstream2string(marker.starts, lgth)), |
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| 108 | ('marker.follows', bitstream2string(marker.follows, lgth)), |
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[2174] | 109 | ('groups.starts', bitstream2string(groups.starts, lgth)), |
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| 110 | ('groups.follows', bitstream2string(groups.follows, lgth)), |
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| 111 | ('groups.follows_7', bitstream2string(groups.follows_7, lgth)), |
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| 112 | ('groups.follows_0', bitstream2string(groups.follows_0, lgth))]) |
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| 113 | |
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| 114 | if __name__ == "__main__": |
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| 115 | |
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| 116 | if len(sys.argv) < 2: |
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| 117 | sys.stderr.write("Usage: python " + filename + " <filename>\n") |
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| 118 | sys.exit(2) |
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| 119 | |
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| 120 | u8data = readfile(sys.argv[1]) |
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| 121 | |
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| 122 | basis_bits = Basis_bits() |
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| 123 | (b, EOF_mask) = transpose_streams(u8data) |
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| 124 | |
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| 125 | basis_bits.bit_0 = b[0] |
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| 126 | basis_bits.bit_1 = b[1] |
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| 127 | basis_bits.bit_2 = b[2] |
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| 128 | basis_bits.bit_3 = b[3] |
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| 129 | basis_bits.bit_4 = b[4] |
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| 130 | basis_bits.bit_5 = b[5] |
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| 131 | basis_bits.bit_6 = b[6] |
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| 132 | basis_bits.bit_7 = b[7] |
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| 133 | |
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| 134 | # Demo_div2(u8data, basis_bits) |
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| 135 | # Demo_logbase2(u8data, basis_bits) |
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[2185] | 136 | Demo_div2_logbase2(u8data, basis_bits) |
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| 137 | # Demo_bit_byte(u8data, basis_bits) |
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[2174] | 138 | |
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