vlc_codes.h

quicktime linux播放器v1

#ifndef _ENCORE_VLC_H
#define _ENCORE_VLC_H
#include "enc_portab.h"
/* type definitions for variable length code table entries */

typedef struct
{
    uint16_t code;		/* right justified */
    uint16_t len;
}
VLCtable;


/* DC prediction sizes */

static VLCtable DCtab_lum[13] = {
    {3, 3}, {3, 2}, {2, 2}, {2, 3}, {1, 3}, {1, 4}, {1, 5}, {1, 6}, {1, 7},
    {1, 8}, {1, 9}, {1, 10}, {1, 11}
};

static VLCtable DCtab_chrom[13] = {
    {3, 2}, {2, 2}, {1, 2}, {1, 3}, {1, 4}, {1, 5}, {1, 6}, {1, 7}, {1, 8},
    {1, 9}, {1, 10}, {1, 11}, {1, 12}
};


 /*
    Motion vectors 
  */

static VLCtable mvtab[33] = {
    {1, 1}, {1, 2}, {1, 3}, {1, 4}, {3, 6}, {5, 7}, {4, 7}, {3, 7},
    {11, 9}, {10, 9}, {9, 9}, {17, 10}, {16, 10}, {15, 10}, {14, 10}, {13, 10},
    {12, 10}, {11, 10}, {10, 10}, {9, 10}, {8, 10}, {7, 10}, {6, 10}, {5, 10},
    {4, 10}, {7, 11}, {6, 11}, {5, 11}, {4, 11}, {3, 11}, {2, 11}, {3, 12},
    {2, 12}
};


/* MCBPC Indexing by cbpc in first two bits, mode in last two.
 CBPC as in table 4/H.263, MB type (mode): 3 = 01, 4 = 10.
 Example: cbpc = 01 and mode = 4 gives index = 0110 = 6. */

static VLCtable mcbpc_intra_tab[15] = {
    {0x01, 9}, {0x01, 1}, {0x01, 4}, {0x00, 0},
    {0x00, 0}, {0x01, 3}, {0x01, 6}, {0x00, 0},
    {0x00, 0}, {0x02, 3}, {0x02, 6}, {0x00, 0},
    {0x00, 0}, {0x03, 3}, {0x03, 6}
};


/* MCBPC inter.
   Addressing: 5 bit ccmmm (cc = CBPC, mmm = mode (1-4 binary)) */

static VLCtable mcbpc_inter_tab[29] = {
    {1, 1}, {3, 3}, {2, 3}, {3, 5}, {4, 6}, {1, 9}, {0, 0}, {0, 0},
    {3, 4}, {7, 7}, {5, 7}, {4, 8}, {4, 9}, {0, 0}, {0, 0}, {0, 0},
    {2, 4}, {6, 7}, {4, 7}, {3, 8}, {3, 9}, {0, 0}, {0, 0}, {0, 0},
    {5, 6}, {5, 9}, {5, 8}, {3, 7}, {2, 9}
};

static VLCtable mcbpc_sprite_tab[31] = {
    {1, 1}, {0, 12}, {2, 3}, {3, 5}, {4, 6}, {3, 3}, {12, 4}, {1, 9},
    {3, 4}, {1, 12}, {5, 7}, {4, 8}, {4, 9}, {7, 7}, {12, 5}, {0, 0},
    {2, 4}, {2, 12}, {4, 7}, {3, 8}, {3, 9}, {6, 7}, {12, 6}, {0, 0},
    {5, 6}, {3, 12}, {5, 8}, {3, 7}, {2, 9}, {5, 9}, {12, 7}
};

/* CBPY. Straightforward indexing */

static VLCtable cbpy_tab[16] = {
    {3, 4}, {5, 5}, {4, 5}, {9, 4}, {3, 5}, {7, 4}, {2, 6}, {11, 4},
    {2, 5}, {3, 6}, {5, 4}, {10, 4}, {4, 4}, {8, 4}, {6, 4}, {3, 2}
};

/* DCT coefficients. Four tables, two for last = 0, two for last = 1.
   the sign bit must be added afterwards. */

/* first part of coeffs for last = 0. Indexed by [run][level-1] */

static VLCtable coeff_tab0[2][12] = {
    /*
       run = 0 
     */
    {
     {0x02, 2}, {0x0f, 4}, {0x15, 6}, {0x17, 7},
     {0x1f, 8}, {0x25, 9}, {0x24, 9}, {0x21, 10},
     {0x20, 10}, {0x07, 11}, {0x06, 11}, {0x20, 11}
     },
    /*
       run = 1 
     */
    {
     {0x06, 3}, {0x14, 6}, {0x1e, 8}, {0x0f, 10},
     {0x21, 11}, {0x50, 12}, {0x00, 0}, {0x00, 0},
     {0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     }
};

/* rest of coeffs for last = 0. indexing by [run-2][level-1] */

static VLCtable coeff_tab1[25][4] = {
    /*
       run = 2 
     */
    {
     {0x0e, 4}, {0x1d, 8}, {0x0e, 10}, {0x51, 12}
     },
    /*
       run = 3 
     */
    {
     {0x0d, 5}, {0x23, 9}, {0x0d, 10}, {0x00, 0}
     },
    /*
       run = 4-26 
     */
    {
     {0x0c, 5}, {0x22, 9}, {0x52, 12}, {0x00, 0}
     },
    {
     {0x0b, 5}, {0x0c, 10}, {0x53, 12}, {0x00, 0}
     },
    {
     {0x13, 6}, {0x0b, 10}, {0x54, 12}, {0x00, 0}
     },
    {
     {0x12, 6}, {0x0a, 10}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x11, 6}, {0x09, 10}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x10, 6}, {0x08, 10}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x16, 7}, {0x55, 12}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x15, 7}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x14, 7}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x1c, 8}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x1b, 8}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x21, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x20, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x1f, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x1e, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x1d, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x1c, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x1b, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x1a, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x22, 11}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x23, 11}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x56, 12}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     },
    {
     {0x57, 12}, {0x00, 0}, {0x00, 0}, {0x00, 0}
     }
};

/* first coeffs of last = 1. indexing by [run][level-1] */

static VLCtable coeff_tab2[2][3] = {
    /*
       run = 0 
     */
    {
     {0x07, 4}, {0x19, 9}, {0x05, 11}
     },
    /*
       run = 1 
     */
    {
     {0x0f, 6}, {0x04, 11}, {0x00, 0}
     }
};

/* rest of coeffs for last = 1. indexing by [run-2] */

static VLCtable coeff_tab3[40] = {
    {0x0e, 6}, {0x0d, 6}, {0x0c, 6},
    {0x13, 7}, {0x12, 7}, {0x11, 7}, {0x10, 7},
    {0x1a, 8}, {0x19, 8}, {0x18, 8}, {0x17, 8},
    {0x16, 8}, {0x15, 8}, {0x14, 8}, {0x13, 8},
    {0x18, 9}, {0x17, 9}, {0x16, 9}, {0x15, 9},
    {0x14, 9}, {0x13, 9}, {0x12, 9}, {0x11, 9},
    {0x07, 10}, {0x06, 10}, {0x05, 10}, {0x04, 10},
    {0x24, 11}, {0x25, 11}, {0x26, 11}, {0x27, 11},
    {0x58, 12}, {0x59, 12}, {0x5a, 12}, {0x5b, 12},
    {0x5c, 12}, {0x5d, 12}, {0x5e, 12}, {0x5f, 12},
    {0x00, 0}
};

/* New tables for Intra luminance coefficients. Same codewords,
   different meaning */

/* Coeffs for last = 0, run = 0. Indexed by [level-1] */

static VLCtable coeff_tab4[27] = {
    /*
       run = 0 
     */
    {0x02, 2}, {0x06, 3}, {0x0f, 4}, {0x0d, 5},
    {0x0c, 5}, {0x15, 6}, {0x13, 6}, {0x12, 6},
    {0x17, 7}, {0x1f, 8}, {0x1e, 8}, {0x1d, 8},
    {0x25, 9}, {0x24, 9}, {0x23, 9}, {0x21, 9},
    {0x21, 10}, {0x20, 10}, {0x0f, 10}, {0x0e, 10},
    {0x07, 11}, {0x06, 11}, {0x20, 11}, {0x21, 11},
    {0x50, 12}, {0x51, 12}, {0x52, 12}
};

/* Coeffs for last = 0, run = 1. Indexed by [level-1] */

static VLCtable coeff_tab5[10] = {
    {0x0e, 4}, {0x14, 6}, {0x16, 7}, {0x1c, 8},
    {0x20, 9}, {0x1f, 9}, {0x0d, 10}, {0x22, 11},
    {0x53, 12}, {0x55, 12}
};

/* Coeffs for last = 0, run = 2 -> 9. Indexed by [run-2][level-1] */

static VLCtable coeff_tab6[8][5] = {
    /*
       run = 2 
     */
    {
     {0x0b, 5}, {0x15, 7}, {0x1e, 9}, {0x0c, 10},
     {0x56, 12}
     },
    /*
       run = 3 
     */
    {
     {0x11, 6}, {0x1b, 8}, {0x1d, 9}, {0x0b, 10},
     {0x00, 0}
     },
    /*
       run = 4 
     */
    {
     {0x10, 6}, {0x22, 9}, {0x0a, 10}, {0x00, 0},
     {0x00, 0}
     },
    /*
       run = 5 
     */
    {
     {0x0d, 6}, {0x1c, 9}, {0x08, 10}, {0x00, 0},
     {0x00, 0}
     },
    /*
       run = 6 
     */
    {
     {0x12, 7}, {0x1b, 9}, {0x54, 12}, {0x00, 0},
     {0x00, 0}
     },
    /*
       run = 7 
     */
    {
     {0x14, 7}, {0x1a, 9}, {0x57, 12}, {0x00, 0},
     {0x00, 0}
     },
    /*
       run = 8 
     */
    {
     {0x19, 8}, {0x09, 10}, {0x00, 0}, {0x00, 0},
     {0x00, 0}
     },
    /*
       run = 9 
     */
    {
     {0x18, 8}, {0x23, 11}, {0x00, 0}, {0x00, 0},
     {0x00, 0}
     }
};

/* Coeffs for last = 0, run = 10 -> 14. Indexed by [run-10] */

static VLCtable coeff_tab7[5] = {
    {0x17, 8}, {0x19, 9}, {0x18, 9}, {0x07, 10},
    {0x58, 12}
};

/* Coeffs for last = 1, run = 0. Indexed by [level-1] */

static VLCtable coeff_tab8[8] = {
    {0x07, 4}, {0x0c, 6}, {0x16, 8}, {0x17, 9},
    {0x06, 10}, {0x05, 11}, {0x04, 11}, {0x59, 12}
};

/* Coeffs for last = 1, run = 1 -> 6. Indexed by [run-1][level-1] */

static VLCtable coeff_tab9[6][3] = {
    /*
       run = 1 
     */
    {
     {0x0f, 6}, {0x16, 9}, {0x05, 10}
     },
    /*
       run = 2 
     */
    {
     {0x0e, 6}, {0x04, 10}, {0x00, 0}
     },
    /*
       run = 3 
     */
    {
     {0x11, 7}, {0x24, 11}, {0x00, 0}
     },
    /*
       run = 4 
     */
    {
     {0x10, 7}, {0x25, 11}, {0x00, 0}
     },
    /*
       run = 5 
     */
    {
     {0x13, 7}, {0x5a, 12}, {0x00, 0}
     },
    /*
       run = 6 
     */
    {
     {0x15, 8}, {0x5b, 12}, {0x00, 0}
     }
};

/* Coeffs for last = 1, run = 7 -> 20. Indexed by [run-7] */

static VLCtable coeff_tab10[14] = {
    {0x14, 8}, {0x13, 8}, {0x1a, 8}, {0x15, 9},
    {0x14, 9}, {0x13, 9}, {0x12, 9}, {0x11, 9},
    {0x26, 11}, {0x27, 11}, {0x5c, 12}, {0x5d, 12},
    {0x5e, 12}, {0x5f, 12}
};



/* RVLC tables */
/* DCT coefficients. Four tables, two for last = 0, two for last = 1.
   the sign bit must be added afterwards. */

/* DCT  coeffs (intra) for last = 0.  */

/* Indexed by [level-1] */

static VLCtable coeff_RVLCtab1[27] = {
    /*
       run = 0 
     */
    {0x6, 3},
    {0x7, 3},
    {0xa, 4},
    {0x9, 5},
    {0x14, 6},
    {0x15, 6},
    {0x34, 7},
    {0x74, 8},
    {0x75, 8},
    {0xdd, 9},
    {0xec, 9},
    {0x1ec, 10},
    {0x1ed, 10},
    {0x1f4, 10},
    {0x3ec, 11},
    {0x3ed, 11},
    {0x3f4, 11},
    {0x77d, 12},
    {0x7bc, 12},
    {0xfbd, 13},
    {0xfdc, 13},
    {0x7bd, 12},
    {0xfdd, 13},
    {0x1fbd, 14},
    {0x1fdc, 14},
    {0x1fdd, 14},
    {0x1ffc, 15}
};


/* Indexed by [level-1] */

static VLCtable coeff_RVLCtab2[13] = {
    /*
       run = 1 
     */
    {0x1, 4},
    {0x8, 5},
    {0x2d, 7},
    {0x6c, 8},
    {0x6d, 8},
    {0xdc, 9},
    {0x1dd, 10},
    {0x3dc, 11},
    {0x3dd, 11},
    {0x77c, 12},
    {0xfbc, 13},
    {0x1f7d, 14},
    {0x1fbc, 14}
};


/* Indexed by [level-1] */

static VLCtable coeff_RVLCtab3[11] = {
    /*
       run = 2 
     */
    {0x4, 5},
    {0x2c, 7},
    {0xbc, 9},
    {0x1dc, 10},
    {0x3bc, 11},
    {0x3bd, 11},
    {0xefd, 13},
    {0xf7c, 13},
    {0xf7d, 13},
    {0x1efd, 14},
    {0x1f7c, 14}
};


/* Indexed by [level-1] */

static VLCtable coeff_RVLCtab4[9] = {
    /*
       run = 3 
     */
    {0x5, 5},
    {0x5c, 8},
    {0xbd, 9},
    {0x37d, 11},
    {0x6fc, 12},
    {0xefc, 13},
    {0x1dfd, 14},
    {0x1efc, 14},
    {0x1ffd, 15}
};


/* Indexed by [run-4][level-1] */

static VLCtable coeff_RVLCtab5[2][6] = {
    /*
       run = 4 
     */
    {
     {0xc, 6},
     {0x5d, 8},
     {0x1bd, 10},
     {0x3fd, 12},
     {0x6fd, 12},
     {0x1bfd, 14}
     },
    /*
       run = 5 
     */
    {
     {0xd, 6},
     {0x7d, 9},
     {0x2fc, 11},
     {0x5fc, 12},
     {0x1bfc, 14},
     {0x1dfc, 14}
     }
};


/* Indexed by [run-6][level-1]       */

static VLCtable coeff_RVLCtab6[2][5] = {
    /*
       run = 6 
     */
    {
     {0x1c, 7},
     {0x17c, 10},
     {0x2fd, 11},
     {0x5fd, 12},
     {0x2ffc, 15}
     },
    /*
       run = 7 
     */
    {
     {0x1d, 7},
     {0x17d, 10},
     {0x37c, 11},
     {0xdfd, 13},
     {0x2ffd, 15}
     }
};


/* Indexed by [run-8][level-1] */

static VLCtable coeff_RVLCtab7[2][4] = {
    /*
       run = 8 
     */
    {
     {0x3c, 8},
     {0x1bc, 10},
     {0xbfd, 13},
     {0x17fd, 14}
     },
    /*
       run = 9 
     */
    {
     {0x3d, 8},
     {0x1fd, 11},
     {0xdfc, 13},
     {0x37fc, 15},
     }
};


/* Indexed by [run-10][level-1] */

static VLCtable coeff_RVLCtab8[3][2] = {
    /*
       run = 10 
     */
    {
     {0x7c, 9},