Diff: HuffmanDecode.cpp

Revision:

2:697ebeb8336f

Parent:

1:58dfd5386a92

Child:

3:2709bbf8baae

--- a/HuffmanDecode.cpp	Mon Oct 08 11:38:57 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,450 +0,0 @@
-#include "mbed.h"
-#include "HuffmanDecode.h"
-#include "HuffmanCodeTable.h"
-#if 1
-#define DBG(...) do{fprintf(stderr,"[%s@%d] ",__PRETTY_FUNCTION__,__LINE__);fprintf(stderr,__VA_ARGS__);} while(0);
-#define DBG_ASSERT(A) while(!(A)){fprintf(stderr,"\n\n%s@%d %s ASSERT!\n\n",__PRETTY_FUNCTION__,__LINE__,#A);exit(1);};
-#else
-#define DBG(...)
-#define DBG_ASSERT(A) 
-#endif
-
-const Huff HT_DC_0[] = {
-/* 0 */ {0,0,2,0x0},
-/* 1 */ {0,1,3,0x2},
-/* 2 */ {0,2,3,0x3},
-/* 3 */ {0,3,3,0x4},
-/* 4 */ {0,4,3,0x5},
-/* 5 */ {0,5,3,0x6},
-/* 6 */ {0,6,4,0xe},
-/* 7 */ {0,7,5,0x1e},
-/* 8 */ {0,8,6,0x3e},
-/* 9 */ {0,9,7,0x7e},
-/* 10 */ {0,10,8,0xfe},
-/* 11 */ {0,11,9,0x1fe},
-};
-const Huff HT_AC_0[] = {
-/* 0 */ {0,1,2,0x0},
-/* 1 */ {0,2,2,0x1},
-/* 2 */ {0,3,3,0x4},
-/* 3 */ {0,0,4,0xa},
-/* 4 */ {0,4,4,0xb},
-/* 5 */ {1,1,4,0xc},
-/* 6 */ {0,5,5,0x1a},
-/* 7 */ {1,2,5,0x1b},
-/* 8 */ {2,1,5,0x1c},
-/* 9 */ {3,1,6,0x3a},
-/* 10 */ {4,1,6,0x3b},
-/* 11 */ {0,6,7,0x78},
-/* 12 */ {1,3,7,0x79},
-/* 13 */ {5,1,7,0x7a},
-/* 14 */ {6,1,7,0x7b},
-/* 15 */ {0,7,8,0xf8},
-/* 16 */ {2,2,8,0xf9},
-/* 17 */ {7,1,8,0xfa},
-/* 18 */ {1,4,9,0x1f6},
-/* 19 */ {3,2,9,0x1f7},
-/* 20 */ {8,1,9,0x1f8},
-/* 21 */ {9,1,9,0x1f9},
-/* 22 */ {10,1,9,0x1fa},
-/* 23 */ {0,8,10,0x3f6},
-/* 24 */ {2,3,10,0x3f7},
-/* 25 */ {4,2,10,0x3f8},
-/* 26 */ {11,1,10,0x3f9},
-/* 27 */ {12,1,10,0x3fa},
-/* 28 */ {1,5,11,0x7f6},
-/* 29 */ {5,2,11,0x7f7},
-/* 30 */ {13,1,11,0x7f8},
-/* 31 */ {15,0,11,0x7f9},
-/* 32 */ {2,4,12,0xff4},
-/* 33 */ {3,3,12,0xff5},
-/* 34 */ {6,2,12,0xff6},
-/* 35 */ {7,2,12,0xff7},
-/* 36 */ {8,2,15,0x7fc0},
-/* 37 */ {0,9,16,0xff82},
-/* 38 */ {0,10,16,0xff83},
-/* 39 */ {1,6,16,0xff84},
-/* 40 */ {1,7,16,0xff85},
-/* 41 */ {1,8,16,0xff86},
-/* 42 */ {1,9,16,0xff87},
-/* 43 */ {1,10,16,0xff88},
-/* 44 */ {2,5,16,0xff89},
-/* 45 */ {2,6,16,0xff8a},
-/* 46 */ {2,7,16,0xff8b},
-/* 47 */ {2,8,16,0xff8c},
-/* 48 */ {2,9,16,0xff8d},
-/* 49 */ {2,10,16,0xff8e},
-/* 50 */ {3,4,16,0xff8f},
-/* 51 */ {3,5,16,0xff90},
-/* 52 */ {3,6,16,0xff91},
-/* 53 */ {3,7,16,0xff92},
-/* 54 */ {3,8,16,0xff93},
-/* 55 */ {3,9,16,0xff94},
-/* 56 */ {3,10,16,0xff95},
-/* 57 */ {4,3,16,0xff96},
-/* 58 */ {4,4,16,0xff97},
-/* 59 */ {4,5,16,0xff98},
-/* 60 */ {4,6,16,0xff99},
-/* 61 */ {4,7,16,0xff9a},
-/* 62 */ {4,8,16,0xff9b},
-/* 63 */ {4,9,16,0xff9c},
-/* 64 */ {4,10,16,0xff9d},
-/* 65 */ {5,3,16,0xff9e},
-/* 66 */ {5,4,16,0xff9f},
-/* 67 */ {5,5,16,0xffa0},
-/* 68 */ {5,6,16,0xffa1},
-/* 69 */ {5,7,16,0xffa2},
-/* 70 */ {5,8,16,0xffa3},
-/* 71 */ {5,9,16,0xffa4},
-/* 72 */ {5,10,16,0xffa5},
-/* 73 */ {6,3,16,0xffa6},
-/* 74 */ {6,4,16,0xffa7},
-/* 75 */ {6,5,16,0xffa8},
-/* 76 */ {6,6,16,0xffa9},
-/* 77 */ {6,7,16,0xffaa},
-/* 78 */ {6,8,16,0xffab},
-/* 79 */ {6,9,16,0xffac},
-/* 80 */ {6,10,16,0xffad},
-/* 81 */ {7,3,16,0xffae},
-/* 82 */ {7,4,16,0xffaf},
-/* 83 */ {7,5,16,0xffb0},
-/* 84 */ {7,6,16,0xffb1},
-/* 85 */ {7,7,16,0xffb2},
-/* 86 */ {7,8,16,0xffb3},
-/* 87 */ {7,9,16,0xffb4},
-/* 88 */ {7,10,16,0xffb5},
-/* 89 */ {8,3,16,0xffb6},
-/* 90 */ {8,4,16,0xffb7},
-/* 91 */ {8,5,16,0xffb8},
-/* 92 */ {8,6,16,0xffb9},
-/* 93 */ {8,7,16,0xffba},
-/* 94 */ {8,8,16,0xffbb},
-/* 95 */ {8,9,16,0xffbc},
-/* 96 */ {8,10,16,0xffbd},
-/* 97 */ {9,2,16,0xffbe},
-/* 98 */ {9,3,16,0xffbf},
-/* 99 */ {9,4,16,0xffc0},
-/* 100 */ {9,5,16,0xffc1},
-/* 101 */ {9,6,16,0xffc2},
-/* 102 */ {9,7,16,0xffc3},
-/* 103 */ {9,8,16,0xffc4},
-/* 104 */ {9,9,16,0xffc5},
-/* 105 */ {9,10,16,0xffc6},
-/* 106 */ {10,2,16,0xffc7},
-/* 107 */ {10,3,16,0xffc8},
-/* 108 */ {10,4,16,0xffc9},
-/* 109 */ {10,5,16,0xffca},
-/* 110 */ {10,6,16,0xffcb},
-/* 111 */ {10,7,16,0xffcc},
-/* 112 */ {10,8,16,0xffcd},
-/* 113 */ {10,9,16,0xffce},
-/* 114 */ {10,10,16,0xffcf},
-/* 115 */ {11,2,16,0xffd0},
-/* 116 */ {11,3,16,0xffd1},
-/* 117 */ {11,4,16,0xffd2},
-/* 118 */ {11,5,16,0xffd3},
-/* 119 */ {11,6,16,0xffd4},
-/* 120 */ {11,7,16,0xffd5},
-/* 121 */ {11,8,16,0xffd6},
-/* 122 */ {11,9,16,0xffd7},
-/* 123 */ {11,10,16,0xffd8},
-/* 124 */ {12,2,16,0xffd9},
-/* 125 */ {12,3,16,0xffda},
-/* 126 */ {12,4,16,0xffdb},
-/* 127 */ {12,5,16,0xffdc},
-/* 128 */ {12,6,16,0xffdd},
-/* 129 */ {12,7,16,0xffde},
-/* 130 */ {12,8,16,0xffdf},
-/* 131 */ {12,9,16,0xffe0},
-/* 132 */ {12,10,16,0xffe1},
-/* 133 */ {13,2,16,0xffe2},
-/* 134 */ {13,3,16,0xffe3},
-/* 135 */ {13,4,16,0xffe4},
-/* 136 */ {13,5,16,0xffe5},
-/* 137 */ {13,6,16,0xffe6},
-/* 138 */ {13,7,16,0xffe7},
-/* 139 */ {13,8,16,0xffe8},
-/* 140 */ {13,9,16,0xffe9},
-/* 141 */ {13,10,16,0xffea},
-/* 142 */ {14,1,16,0xffeb},
-/* 143 */ {14,2,16,0xffec},
-/* 144 */ {14,3,16,0xffed},
-/* 145 */ {14,4,16,0xffee},
-/* 146 */ {14,5,16,0xffef},
-/* 147 */ {14,6,16,0xfff0},
-/* 148 */ {14,7,16,0xfff1},
-/* 149 */ {14,8,16,0xfff2},
-/* 150 */ {14,9,16,0xfff3},
-/* 151 */ {14,10,16,0xfff4},
-/* 152 */ {15,1,16,0xfff5},
-/* 153 */ {15,2,16,0xfff6},
-/* 154 */ {15,3,16,0xfff7},
-/* 155 */ {15,4,16,0xfff8},
-/* 156 */ {15,5,16,0xfff9},
-/* 157 */ {15,6,16,0xfffa},
-/* 158 */ {15,7,16,0xfffb},
-/* 159 */ {15,8,16,0xfffc},
-/* 160 */ {15,9,16,0xfffd},
-/* 161 */ {15,10,16,0xfffe},
-};
-const Huff HT_DC_1[] = {
-/* 0 */ {0,0,2,0x0},
-/* 1 */ {0,1,2,0x1},
-/* 2 */ {0,2,2,0x2},
-/* 3 */ {0,3,3,0x6},
-/* 4 */ {0,4,4,0xe},
-/* 5 */ {0,5,5,0x1e},
-/* 6 */ {0,6,6,0x3e},
-/* 7 */ {0,7,7,0x7e},
-/* 8 */ {0,8,8,0xfe},
-/* 9 */ {0,9,9,0x1fe},
-/* 10 */ {0,10,10,0x3fe},
-/* 11 */ {0,11,11,0x7fe},
-};
-const Huff HT_AC_1[] = {
-/* 0 */ {0,0,2,0x0},
-/* 1 */ {0,1,2,0x1},
-/* 2 */ {0,2,3,0x4},
-/* 3 */ {0,3,4,0xa},
-/* 4 */ {1,1,4,0xb},
-/* 5 */ {0,4,5,0x18},
-/* 6 */ {0,5,5,0x19},
-/* 7 */ {2,1,5,0x1a},
-/* 8 */ {3,1,5,0x1b},
-/* 9 */ {0,6,6,0x38},
-/* 10 */ {1,2,6,0x39},
-/* 11 */ {4,1,6,0x3a},
-/* 12 */ {5,1,6,0x3b},
-/* 13 */ {0,7,7,0x78},
-/* 14 */ {6,1,7,0x79},
-/* 15 */ {7,1,7,0x7a},
-/* 16 */ {1,3,8,0xf6},
-/* 17 */ {2,2,8,0xf7},
-/* 18 */ {3,2,8,0xf8},
-/* 19 */ {8,1,8,0xf9},
-/* 20 */ {0,8,9,0x1f4},
-/* 21 */ {1,4,9,0x1f5},
-/* 22 */ {4,2,9,0x1f6},
-/* 23 */ {9,1,9,0x1f7},
-/* 24 */ {10,1,9,0x1f8},
-/* 25 */ {11,1,9,0x1f9},
-/* 26 */ {12,1,9,0x1fa},
-/* 27 */ {0,9,10,0x3f6},
-/* 28 */ {2,3,10,0x3f7},
-/* 29 */ {3,3,10,0x3f8},
-/* 30 */ {5,2,10,0x3f9},
-/* 31 */ {15,0,10,0x3fa},
-/* 32 */ {1,5,11,0x7f6},
-/* 33 */ {6,2,11,0x7f7},
-/* 34 */ {7,2,11,0x7f8},
-/* 35 */ {13,1,11,0x7f9},
-/* 36 */ {0,10,12,0xff4},
-/* 37 */ {1,6,12,0xff5},
-/* 38 */ {2,4,12,0xff6},
-/* 39 */ {3,4,12,0xff7},
-/* 40 */ {14,1,14,0x3fe0},
-/* 41 */ {2,5,15,0x7fc2},
-/* 42 */ {15,1,15,0x7fc3},
-/* 43 */ {1,7,16,0xff88},
-/* 44 */ {1,8,16,0xff89},
-/* 45 */ {1,9,16,0xff8a},
-/* 46 */ {1,10,16,0xff8b},
-/* 47 */ {2,6,16,0xff8c},
-/* 48 */ {2,7,16,0xff8d},
-/* 49 */ {2,8,16,0xff8e},
-/* 50 */ {2,9,16,0xff8f},
-/* 51 */ {2,10,16,0xff90},
-/* 52 */ {3,5,16,0xff91},
-/* 53 */ {3,6,16,0xff92},
-/* 54 */ {3,7,16,0xff93},
-/* 55 */ {3,8,16,0xff94},
-/* 56 */ {3,9,16,0xff95},
-/* 57 */ {3,10,16,0xff96},
-/* 58 */ {4,3,16,0xff97},
-/* 59 */ {4,4,16,0xff98},
-/* 60 */ {4,5,16,0xff99},
-/* 61 */ {4,6,16,0xff9a},
-/* 62 */ {4,7,16,0xff9b},
-/* 63 */ {4,8,16,0xff9c},
-/* 64 */ {4,9,16,0xff9d},
-/* 65 */ {4,10,16,0xff9e},
-/* 66 */ {5,3,16,0xff9f},
-/* 67 */ {5,4,16,0xffa0},
-/* 68 */ {5,5,16,0xffa1},
-/* 69 */ {5,6,16,0xffa2},
-/* 70 */ {5,7,16,0xffa3},
-/* 71 */ {5,8,16,0xffa4},
-/* 72 */ {5,9,16,0xffa5},
-/* 73 */ {5,10,16,0xffa6},
-/* 74 */ {6,3,16,0xffa7},
-/* 75 */ {6,4,16,0xffa8},
-/* 76 */ {6,5,16,0xffa9},
-/* 77 */ {6,6,16,0xffaa},
-/* 78 */ {6,7,16,0xffab},
-/* 79 */ {6,8,16,0xffac},
-/* 80 */ {6,9,16,0xffad},
-/* 81 */ {6,10,16,0xffae},
-/* 82 */ {7,3,16,0xffaf},
-/* 83 */ {7,4,16,0xffb0},
-/* 84 */ {7,5,16,0xffb1},
-/* 85 */ {7,6,16,0xffb2},
-/* 86 */ {7,7,16,0xffb3},
-/* 87 */ {7,8,16,0xffb4},
-/* 88 */ {7,9,16,0xffb5},
-/* 89 */ {7,10,16,0xffb6},
-/* 90 */ {8,2,16,0xffb7},
-/* 91 */ {8,3,16,0xffb8},
-/* 92 */ {8,4,16,0xffb9},
-/* 93 */ {8,5,16,0xffba},
-/* 94 */ {8,6,16,0xffbb},
-/* 95 */ {8,7,16,0xffbc},
-/* 96 */ {8,8,16,0xffbd},
-/* 97 */ {8,9,16,0xffbe},
-/* 98 */ {8,10,16,0xffbf},
-/* 99 */ {9,2,16,0xffc0},
-/* 100 */ {9,3,16,0xffc1},
-/* 101 */ {9,4,16,0xffc2},
-/* 102 */ {9,5,16,0xffc3},
-/* 103 */ {9,6,16,0xffc4},
-/* 104 */ {9,7,16,0xffc5},
-/* 105 */ {9,8,16,0xffc6},
-/* 106 */ {9,9,16,0xffc7},
-/* 107 */ {9,10,16,0xffc8},
-/* 108 */ {10,2,16,0xffc9},
-/* 109 */ {10,3,16,0xffca},
-/* 110 */ {10,4,16,0xffcb},
-/* 111 */ {10,5,16,0xffcc},
-/* 112 */ {10,6,16,0xffcd},
-/* 113 */ {10,7,16,0xffce},
-/* 114 */ {10,8,16,0xffcf},
-/* 115 */ {10,9,16,0xffd0},
-/* 116 */ {10,10,16,0xffd1},
-/* 117 */ {11,2,16,0xffd2},
-/* 118 */ {11,3,16,0xffd3},
-/* 119 */ {11,4,16,0xffd4},
-/* 120 */ {11,5,16,0xffd5},
-/* 121 */ {11,6,16,0xffd6},
-/* 122 */ {11,7,16,0xffd7},
-/* 123 */ {11,8,16,0xffd8},
-/* 124 */ {11,9,16,0xffd9},
-/* 125 */ {11,10,16,0xffda},
-/* 126 */ {12,2,16,0xffdb},
-/* 127 */ {12,3,16,0xffdc},
-/* 128 */ {12,4,16,0xffdd},
-/* 129 */ {12,5,16,0xffde},
-/* 130 */ {12,6,16,0xffdf},
-/* 131 */ {12,7,16,0xffe0},
-/* 132 */ {12,8,16,0xffe1},
-/* 133 */ {12,9,16,0xffe2},
-/* 134 */ {12,10,16,0xffe3},
-/* 135 */ {13,2,16,0xffe4},
-/* 136 */ {13,3,16,0xffe5},
-/* 137 */ {13,4,16,0xffe6},
-/* 138 */ {13,5,16,0xffe7},
-/* 139 */ {13,6,16,0xffe8},
-/* 140 */ {13,7,16,0xffe9},
-/* 141 */ {13,8,16,0xffea},
-/* 142 */ {13,9,16,0xffeb},
-/* 143 */ {13,10,16,0xffec},
-/* 144 */ {14,2,16,0xffed},
-/* 145 */ {14,3,16,0xffee},
-/* 146 */ {14,4,16,0xffef},
-/* 147 */ {14,5,16,0xfff0},
-/* 148 */ {14,6,16,0xfff1},
-/* 149 */ {14,7,16,0xfff2},
-/* 150 */ {14,8,16,0xfff3},
-/* 151 */ {14,9,16,0xfff4},
-/* 152 */ {14,10,16,0xfff5},
-/* 153 */ {15,2,16,0xfff6},
-/* 154 */ {15,3,16,0xfff7},
-/* 155 */ {15,4,16,0xfff8},
-/* 156 */ {15,5,16,0xfff9},
-/* 157 */ {15,6,16,0xfffa},
-/* 158 */ {15,7,16,0xfffb},
-/* 159 */ {15,8,16,0xfffc},
-/* 160 */ {15,9,16,0xfffd},
-/* 161 */ {15,10,16,0xfffe},
-};
-
-Huff* HuffmanDecode::Lookup(int tc, int th, BitPattern* bitpat)
-{
-    Huff* huff;
-    int size;
-
-    if (tc == 0) {
-        if (th == 0) {
-            huff = (Huff*)HT_DC_0;
-            size = sizeof(HT_DC_0) / sizeof(Huff);
-        } else {
-            huff = (Huff*)HT_DC_1;
-            size = sizeof(HT_DC_1) / sizeof(Huff);
-        }
-    } else {
-        if (th == 0) {
-            huff = (Huff*)HT_AC_0;
-            size = sizeof(HT_AC_0) / sizeof(Huff);
-        } else {
-            huff = (Huff*)HT_AC_1;
-            size = sizeof(HT_AC_1) / sizeof(Huff);
-        }
-    }
-
-    for(int i = 0; i < size; i++) {
-        //DBG("%d %p\n", i, huff);
-        if (huff->code_size > bitpat->size()) {
-            return NULL;
-        }
-        BitPattern tmp(huff->code, huff->code_size);
-        if (bitpat->match(tmp)) {
-            return huff;
-        }
-        huff++;
-    }
-    return NULL;
-}
-
-struct sthtinfo {
-    const Huff* huff_table;
-    const uint8_t* index_table;
-    int max_code_size;
-};
-
-const struct sthtinfo htinfo[2][2] = {
-    {{HT_DC_0, HT_DC_0_index,  9}, {HT_DC_1, HT_DC_1_index, 11}},
-    {{HT_AC_0, HT_AC_0_index, 16}, {HT_AC_1, HT_AC_1_index, 16}},
-};
-
-Huff* HuffmanDecode::Lookup2(int tc, int th, BitPattern* bitpat)
-{
-    const struct sthtinfo* info = &htinfo[tc][th];
-
-    int pat_size = bitpat->size();
-    uint32_t pat = bitpat->peek(pat_size);
-    if (pat_size > info->max_code_size) {
-        pat >>= (pat_size-info->max_code_size);
-    } else if (pat_size < info->max_code_size) {
-        pat <<= (info->max_code_size-pat_size);
-    }
-    int index = info->index_table[pat];
-    if (index == 0xff) {
-        return NULL;
-    }
-    Huff* huff = (Huff*)&(info->huff_table[index]);
-    if (huff->code_size > pat_size) {
-        return NULL;
-    }
-    return huff;
-}
-
-int HuffmanDecode::getValue(Huff* huff, BitPattern* bitpat)
-{
-    int value = bitpat->get(huff->value_size);
-    if (huff->value_size == 0) {
-        return 0;
-    }
-    if (value & (1<<(huff->value_size-1))) {
-        return value;
-    }
-    value -= (1<<huff->value_size)-1;
-    return value;
-}