getvlc.h

基于H.263的图像压缩编解码的C源码

/************************************************************************
 *
 *  getvlc.c, variable length code tables for tmndecode (H.263 decoder)
 *  
 ************************************************************************/

typedef struct {
  int val, len;
} VLCtab;

typedef struct {
  char run, level, len;
} DCTtab;


static VLCtab TMNMVtab0[] = {
       {3,4}, {61,4}, {2,3}, { 2,3}, {62,3}, {62,3}, { 1,2},
       {1,2}, { 1,2}, {1,2}, {63,2}, {63,2}, {63,2}, {63,2}
};

static VLCtab TMNMVtab1[] = {
       {12,10}, {52,10}, {11,10}, {53,10}, {10,9}, {10,9}, {54,9}, {54,9},
       { 9, 9}, { 9, 9}, {55, 9}, {55, 9}, { 8,9}, { 8,9}, {56,9}, {56,9},
       { 7, 7}, { 7, 7}, { 7, 7}, { 7, 7}, { 7,7}, { 7,7}, { 7,7}, { 7,7}, 
       {57, 7}, {57, 7}, {57, 7}, {57, 7}, {57,7}, {57,7}, {57,7}, {57,7},
       { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7}, { 6,7}, { 6,7}, { 6,7}, { 6,7},
       {58, 7}, {58, 7}, {58, 7}, {58, 7}, {58,7}, {58,7}, {58,7}, {58,7}, 
       { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7}, { 5,7}, { 5,7}, { 5,7}, { 5,7},
       {59, 7}, {59, 7}, {59, 7}, {59, 7}, {59,7}, {59,7}, {59,7}, {59,7},
       { 4, 6}, { 4, 6}, { 4, 6}, { 4, 6}, { 4,6}, { 4,6}, { 4,6}, { 4,6}, 
       { 4, 6}, { 4, 6}, { 4, 6}, { 4, 6}, { 4,6}, { 4,6}, { 4,6}, { 4,6},
       {60, 6}, {60, 6}, {60, 6}, {60, 6}, {60,6}, {60,6}, {60,6}, {60,6},
       {60, 6}, {60, 6}, {60, 6}, {60, 6}, {60,6}, {60,6}, {60,6}, {60,6}
};

static VLCtab TMNMVtab2[] = {
       {32,12}, {31,12}, {33,12}, {30,11}, {30,11}, {34,11}, 
       {34,11}, {29,11}, {29,11}, {35,11}, {35,11}, {28,11}, 
       {28,11}, {36,11}, {36,11}, {27,11}, {27,11}, {37,11}, 
       {37,11}, {26,11}, {26,11}, {38,11}, {38,11}, {25,11}, 
       {25,11}, {39,11}, {39,11}, {24,10}, {24,10}, {24,10}, 
       {24,10}, {40,10}, {40,10}, {40,10}, {40,10}, {23,10}, 
       {23,10}, {23,10}, {23,10}, {41,10}, {41,10}, {41,10}, 
       {41,10}, {22,10}, {22,10}, {22,10}, {22,10}, {42,10}, 
       {42,10}, {42,10}, {42,10}, {21,10}, {21,10}, {21,10}, 
       {21,10}, {43,10}, {43,10}, {43,10}, {43,10}, {20,10}, 
       {20,10}, {20,10}, {20,10}, {44,10}, {44,10}, {44,10}, 
       {44,10}, {19,10}, {19,10}, {19,10}, {19,10}, {45,10}, 
       {45,10}, {45,10}, {45,10}, {18,10}, {18,10}, {18,10}, 
       {18,10}, {46,10}, {46,10}, {46,10}, {46,10}, {17,10}, 
       {17,10}, {17,10}, {17,10}, {47,10}, {47,10}, {47,10}, 
       {47,10}, {16,10}, {16,10}, {16,10}, {16,10}, {48,10}, 
       {48,10}, {48,10}, {48,10}, {15,10}, {15,10}, {15,10}, 
       {15,10}, {49,10}, {49,10}, {49,10}, {49,10}, {14,10}, 
       {14,10}, {14,10}, {14,10}, {50,10}, {50,10}, {50,10}, 
       {50,10}, {13,10}, {13,10}, {13,10}, {13,10}, {51,10}, 
       {51,10}, {51,10}, {51,10}
};


static VLCtab MCBPCtab[] = {
{-1,0},
{255,9}, {52,9}, {36,9}, {20,9}, {49,9}, {35,8}, {35,8}, {19,8}, {19,8}, 
{ 50,8}, {50,8}, {51,7}, {51,7}, {51,7}, {51,7}, {34,7}, {34,7}, {34,7}, 
{ 34,7}, {18,7}, {18,7}, {18,7}, {18,7}, {33,7}, {33,7}, {33,7}, {33,7}, 
{ 17,7}, {17,7}, {17,7}, {17,7}, { 4,6}, { 4,6}, { 4,6}, { 4,6}, { 4,6}, 
{  4,6}, { 4,6}, { 4,6}, {48,6}, {48,6}, {48,6}, {48,6}, {48,6}, {48,6}, 
{ 48,6}, {48,6}, { 3,5}, { 3,5}, { 3,5}, { 3,5}, { 3,5}, { 3,5}, { 3,5}, 
{  3,5}, { 3,5}, { 3,5}, { 3,5}, { 3,5}, { 3,5}, { 3,5}, { 3,5}, { 3,5}, 
{ 32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, 
{ 32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, 
{ 32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {32,4}, 
{ 32,4}, {32,4}, {32,4}, {32,4}, {32,4}, {16,4}, {16,4}, {16,4}, {16,4}, 
{ 16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, 
{ 16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, 
{ 16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, {16,4}, 
{ 16,4}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
{  2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
{  2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
{  2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
{  2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
{  2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
{  2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, {2,3}, 
{  2,3}, {2,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
{  1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
{  1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
{  1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
{  1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
{  1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
{  1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, {1,3}, 
{  1,3}, {1,3}, {1,3}, 
};

static VLCtab MCBPCtabintra[] = {
{-1,0},
{20,6}, {36,6}, {52,6}, { 4,4}, { 4,4}, { 4,4}, 
{ 4,4}, {19,3}, {19,3}, {19,3}, {19,3}, {19,3}, 
{19,3}, {19,3}, {19,3}, {35,3}, {35,3}, {35,3}, 
{35,3}, {35,3}, {35,3}, {35,3}, {35,3}, {51,3}, 
{51,3}, {51,3}, {51,3}, {51,3}, {51,3}, {51,3}, 
{51,3},
};

static VLCtab CBPYtab[48] ={
  {-1,0}, {-1,0}, { 9,6}, { 6,6}, { 7,5}, { 7,5}, {11,5}, {11,5},
  {13,5}, {13,5}, {14,5}, {14,5}, {15,4}, {15,4}, {15,4}, {15,4}, 
  { 3,4}, { 3,4}, { 3,4}, { 3,4}, { 5,4}, { 5,4}, { 5,4}, { 5,4},
  { 1,4}, { 1,4}, { 1,4}, { 1,4}, {10,4}, {10,4}, {10,4}, {10,4},
  { 2,4}, { 2,4}, { 2,4}, { 2,4}, {12,4}, {12,4}, {12,4}, {12,4}, 
  { 4,4}, { 4,4}, { 4,4}, { 4,4}, { 8,4}, { 8,4}, { 8,4}, { 8,4}, 
};


VLCtab DCT3Dtab0[] = {
{4225,7}, {4209,7}, {4193,7}, {4177,7}, { 193,7}, { 177,7}, 
{ 161,7}, {   4,7}, {4161,6}, {4161,6}, {4145,6}, {4145,6}, 
{4129,6}, {4129,6}, {4113,6}, {4113,6}, { 145,6}, { 145,6}, 
{ 129,6}, { 129,6}, { 113,6}, { 113,6}, {  97,6}, {  97,6}, 
{  18,6}, {  18,6}, {   3,6}, {   3,6}, {  81,5}, {  81,5}, 
{  81,5}, {  81,5}, {  65,5}, {  65,5}, {  65,5}, {  65,5}, 
{  49,5}, {  49,5}, {  49,5}, {  49,5}, {4097,4}, {4097,4}, 
{4097,4}, {4097,4}, {4097,4}, {4097,4}, {4097,4}, {4097,4}, 
{1,2}, {1,2}, {1,2}, {1,2}, {1,2}, {1,2}, 
{1,2}, {1,2}, {1,2}, {1,2}, {1,2}, {1,2}, 
{1,2}, {1,2}, {1,2}, {1,2}, {1,2}, {1,2}, 
{1,2}, {1,2}, {1,2}, {1,2}, {1,2}, {1,2}, 
{1,2}, {1,2}, {1,2}, {1,2}, {1,2}, {1,2}, 
{ 1,2}, { 1,2}, {17,3}, {17,3}, {17,3}, {17,3}, 
{17,3}, {17,3}, {17,3}, {17,3}, {17,3}, {17,3}, 
{17,3}, {17,3}, {17,3}, {17,3}, {17,3}, {17,3}, 
{33,4}, {33,4}, {33,4}, {33,4}, {33,4}, {33,4}, 
{33,4}, {33,4}, { 2,4}, { 2,4}, { 2,4}, { 2,4},
{ 2,4}, { 2,4}, { 2,4}, { 2,4},
};


VLCtab DCT3Dtab1[] = {
{9,10}, {8,10}, {4481,9}, {4481,9}, {4465,9}, {4465,9}, 
{4449,9}, {4449,9}, {4433,9}, {4433,9}, {4417,9}, {4417,9}, 
{4401,9}, {4401,9}, {4385,9}, {4385,9}, {4369,9}, {4369,9}, 
{4098,9}, {4098,9}, {353,9}, {353,9}, {337,9}, {337,9}, 
{321,9}, {321,9}, {305,9}, {305,9}, {289,9}, {289,9}, 
{273,9}, {273,9}, {257,9}, {257,9}, {241,9}, {241,9}, 
{66,9}, {66,9}, {50,9}, {50,9}, {7,9}, {7,9}, 
{6,9}, {6,9}, {4353,8}, {4353,8}, {4353,8}, {4353,8}, 
{4337,8}, {4337,8}, {4337,8}, {4337,8}, {4321,8}, {4321,8}, 
{4321,8}, {4321,8}, {4305,8}, {4305,8}, {4305,8}, {4305,8}, 
{4289,8}, {4289,8}, {4289,8}, {4289,8}, {4273,8}, {4273,8}, 
{4273,8}, {4273,8}, {4257,8}, {4257,8}, {4257,8}, {4257,8}, 
{4241,8}, {4241,8}, {4241,8}, {4241,8}, {225,8}, {225,8}, 
{225,8}, {225,8}, {209,8}, {209,8}, {209,8}, {209,8}, 
{34,8}, {34,8}, {34,8}, {34,8}, {19,8}, {19,8}, 
{19,8}, {19,8}, {5,8}, {5,8}, {5,8}, {5,8}, 
};

VLCtab DCT3Dtab2[] = {
{4114,11}, {4114,11}, {4099,11}, {4099,11}, {  11,11}, {  11,11}, 
{  10,11}, {  10,11}, {4545,10}, {4545,10}, {4545,10}, {4545,10}, 
{4529,10}, {4529,10}, {4529,10}, {4529,10}, {4513,10}, {4513,10}, 
{4513,10}, {4513,10}, {4497,10}, {4497,10}, {4497,10}, {4497,10}, 
{ 146,10}, { 146,10}, { 146,10}, { 146,10}, { 130,10}, { 130,10}, 
{ 130,10}, { 130,10}, { 114,10}, { 114,10}, { 114,10}, { 114,10}, 
{  98,10}, {  98,10}, {  98,10}, {  98,10}, {  82,10}, {  82,10}, 
{  82,10}, {  82,10}, {  51,10}, {  51,10}, {  51,10}, {  51,10}, 
{  35,10}, {  35,10}, {  35,10}, {  35,10}, {  20,10}, {  20,10}, 
{  20,10}, {  20,10}, {  12,11}, {  12,11}, {  21,11}, {  21,11}, 
{ 369,11}, { 369,11}, { 385,11}, { 385,11}, {4561,11}, {4561,11}, 
{4577,11}, {4577,11}, {4593,11}, {4593,11}, {4609,11}, {4609,11}, 
{  22,12}, {  36,12}, {  67,12}, {  83,12}, {  99,12}, { 162,12}, 
{ 401,12}, { 417,12}, {4625,12}, {4641,12}, {4657,12}, {4673,12}, 
{4689,12}, {4705,12}, {4721,12}, {4737,12}, {7167, 7}, {7167, 7},
{7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7},
{7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7},
{7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7},
{7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7},
{7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7},
};