getvlc.h
资源名称:mpeg2编解码.zip [点击查看]
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上传日期:2013-02-17
资源大小:293k
文件大小:20k
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Windows Mobile
开发平台:
C/C++
- /* getvlc.h, variable length code tables */
- /* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. */
- /*
- * Disclaimer of Warranty
- *
- * These software programs are available to the user without any license fee or
- * royalty on an "as is" basis. The MPEG Software Simulation Group disclaims
- * any and all warranties, whether express, implied, or statuary, including any
- * implied warranties or merchantability or of fitness for a particular
- * purpose. In no event shall the copyright-holder be liable for any
- * incidental, punitive, or consequential damages of any kind whatsoever
- * arising from the use of these programs.
- *
- * This disclaimer of warranty extends to the user of these programs and user's
- * customers, employees, agents, transferees, successors, and assigns.
- *
- * The MPEG Software Simulation Group does not represent or warrant that the
- * programs furnished hereunder are free of infringement of any third-party
- * patents.
- *
- * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,
- * are subject to royalty fees to patent holders. Many of these patents are
- * general enough such that they are unavoidable regardless of implementation
- * design.
- *
- */
- /* NOTE: #define constants such as MACROBLOCK_QUANT are upper case
- as per C programming convention. However, the MPEG document
- (ISO/IEC 13818-2) lists them in all lower case (e.g. Annex B) */
- /* NOTE: the VLC tables are in a flash format---a transformation
- of the tables in Annex B to a form more convenient towards
- parallel (more than one-bit-at-a-time) decoding */
- typedef struct {
- char val, len;
- } VLCtab;
- typedef struct {
- char run, level, len;
- } DCTtab;
- /* Table B-3, macroblock_type in P-pictures, codes 001..1xx */
- static VLCtab PMBtab0[8] = {
- {ERROR,0},
- {MACROBLOCK_MOTION_FORWARD,3},
- {MACROBLOCK_PATTERN,2}, {MACROBLOCK_PATTERN,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,1},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,1},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,1},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,1}
- };
- /* Table B-3, macroblock_type in P-pictures, codes 000001..00011x */
- static VLCtab PMBtab1[8] = {
- {ERROR,0},
- {MACROBLOCK_QUANT|MACROBLOCK_INTRA,6},
- {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,5}, {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,5},
- {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,5}, {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,5},
- {MACROBLOCK_INTRA,5}, {MACROBLOCK_INTRA,5}
- };
- /* Table B-4, macroblock_type in B-pictures, codes 0010..11xx */
- static VLCtab BMBtab0[16] = {
- {ERROR,0},
- {ERROR,0},
- {MACROBLOCK_MOTION_FORWARD,4},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,4},
- {MACROBLOCK_MOTION_BACKWARD,3},
- {MACROBLOCK_MOTION_BACKWARD,3},
- {MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,3},
- {MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,3},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2}
- };
- /* Table B-4, macroblock_type in B-pictures, codes 000001..00011x */
- static VLCtab BMBtab1[8] = {
- {ERROR,0},
- {MACROBLOCK_QUANT|MACROBLOCK_INTRA,6},
- {MACROBLOCK_QUANT|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,6},
- {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,6},
- {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,5},
- {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,5},
- {MACROBLOCK_INTRA,5},
- {MACROBLOCK_INTRA,5}
- };
- /* Table B-5, macroblock_type in spat. scal. I-pictures, codes 0001..1xxx */
- static VLCtab spIMBtab[16] = {
- {ERROR,0},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS,4},
- {MACROBLOCK_QUANT|MACROBLOCK_INTRA,4},
- {MACROBLOCK_INTRA,4},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1}
- };
- /* Table B-6, macroblock_type in spat. scal. P-pictures, codes 0010..11xx */
- static VLCtab spPMBtab0[16] =
- {
- {ERROR,0},
- {ERROR,0},
- {MACROBLOCK_MOTION_FORWARD,4},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD,4},
- {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,3}, {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,3},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,3}, {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,3},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2}
- };
- /* Table B-6, macroblock_type in spat. scal. P-pictures, codes 0000010..000111x */
- static VLCtab spPMBtab1[16] = {
- {ERROR,0},
- {ERROR,0},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,7},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS,7},
- {MACROBLOCK_PATTERN,7},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,7},
- {MACROBLOCK_QUANT|MACROBLOCK_INTRA,7},
- {MACROBLOCK_INTRA,7},
- {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,6},
- {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_PATTERN,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_PATTERN,6}
- };
- /* Table B-7, macroblock_type in spat. scal. B-pictures, codes 0010..11xx */
- static VLCtab spBMBtab0[14] = {
- {MACROBLOCK_MOTION_FORWARD,4},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,4},
- {MACROBLOCK_MOTION_BACKWARD,3},
- {MACROBLOCK_MOTION_BACKWARD,3},
- {MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,3},
- {MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,3},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2}
- };
- /* Table B-7, macroblock_type in spat. scal. B-pictures, codes 0000100..000111x */
- static VLCtab spBMBtab1[12] = {
- {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,7},
- {MACROBLOCK_QUANT|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,7},
- {MACROBLOCK_INTRA,7},
- {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,7},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_BACKWARD,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_BACKWARD,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,6},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,6}
- };
- /* Table B-7, macroblock_type in spat. scal. B-pictures, codes 00000100x..000001111 */
- static VLCtab spBMBtab2[8] = {
- {MACROBLOCK_QUANT|MACROBLOCK_INTRA,8},
- {MACROBLOCK_QUANT|MACROBLOCK_INTRA,8},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,8},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,8},
- {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,9},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,9},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS,9},
- {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,9}
- };
- /* Table B-8, macroblock_type in spat. scal. B-pictures, codes 001..1xx */
- static VLCtab SNRMBtab[8] = {
- {ERROR,0},
- {0,3},
- {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2},
- {MACROBLOCK_PATTERN,1},
- {MACROBLOCK_PATTERN,1},
- {MACROBLOCK_PATTERN,1},
- {MACROBLOCK_PATTERN,1}
- };
- /* Table B-10, motion_code, codes 0001 ... 01xx */
- static VLCtab MVtab0[8] =
- { {ERROR,0}, {3,3}, {2,2}, {2,2}, {1,1}, {1,1}, {1,1}, {1,1}
- };
- /* Table B-10, motion_code, codes 0000011 ... 000011x */
- static VLCtab MVtab1[8] =
- { {ERROR,0}, {ERROR,0}, {ERROR,0}, {7,6}, {6,6}, {5,6}, {4,5}, {4,5}
- };
- /* Table B-10, motion_code, codes 0000001100 ... 000001011x */
- static VLCtab MVtab2[12] =
- { {16,9}, {15,9}, {14,9}, {13,9},
- {12,9}, {11,9}, {10,8}, {10,8},
- {9,8}, {9,8}, {8,8}, {8,8}
- };
- /* Table B-9, coded_block_pattern, codes 01000 ... 111xx */
- static VLCtab CBPtab0[32] =
- { {ERROR,0}, {ERROR,0}, {ERROR,0}, {ERROR,0},
- {ERROR,0}, {ERROR,0}, {ERROR,0}, {ERROR,0},
- {62,5}, {2,5}, {61,5}, {1,5}, {56,5}, {52,5}, {44,5}, {28,5},
- {40,5}, {20,5}, {48,5}, {12,5}, {32,4}, {32,4}, {16,4}, {16,4},
- {8,4}, {8,4}, {4,4}, {4,4}, {60,3}, {60,3}, {60,3}, {60,3}
- };
- /* Table B-9, coded_block_pattern, codes 00000100 ... 001111xx */
- static VLCtab CBPtab1[64] =
- { {ERROR,0}, {ERROR,0}, {ERROR,0}, {ERROR,0},
- {58,8}, {54,8}, {46,8}, {30,8},
- {57,8}, {53,8}, {45,8}, {29,8}, {38,8}, {26,8}, {37,8}, {25,8},
- {43,8}, {23,8}, {51,8}, {15,8}, {42,8}, {22,8}, {50,8}, {14,8},
- {41,8}, {21,8}, {49,8}, {13,8}, {35,8}, {19,8}, {11,8}, {7,8},
- {34,7}, {34,7}, {18,7}, {18,7}, {10,7}, {10,7}, {6,7}, {6,7},
- {33,7}, {33,7}, {17,7}, {17,7}, {9,7}, {9,7}, {5,7}, {5,7},
- {63,6}, {63,6}, {63,6}, {63,6}, {3,6}, {3,6}, {3,6}, {3,6},
- {36,6}, {36,6}, {36,6}, {36,6}, {24,6}, {24,6}, {24,6}, {24,6}
- };
- /* Table B-9, coded_block_pattern, codes 000000001 ... 000000111 */
- static VLCtab CBPtab2[8] =
- { {ERROR,0}, {0,9}, {39,9}, {27,9}, {59,9}, {55,9}, {47,9}, {31,9}
- };
- /* Table B-1, macroblock_address_increment, codes 00010 ... 011xx */
- static VLCtab MBAtab1[16] =
- { {ERROR,0}, {ERROR,0}, {7,5}, {6,5}, {5,4}, {5,4}, {4,4}, {4,4},
- {3,3}, {3,3}, {3,3}, {3,3}, {2,3}, {2,3}, {2,3}, {2,3}
- };
- /* Table B-1, macroblock_address_increment, codes 00000011000 ... 0000111xxxx */
- static VLCtab MBAtab2[104] =
- {
- {33,11}, {32,11}, {31,11}, {30,11}, {29,11}, {28,11}, {27,11}, {26,11},
- {25,11}, {24,11}, {23,11}, {22,11}, {21,10}, {21,10}, {20,10}, {20,10},
- {19,10}, {19,10}, {18,10}, {18,10}, {17,10}, {17,10}, {16,10}, {16,10},
- {15,8}, {15,8}, {15,8}, {15,8}, {15,8}, {15,8}, {15,8}, {15,8},
- {14,8}, {14,8}, {14,8}, {14,8}, {14,8}, {14,8}, {14,8}, {14,8},
- {13,8}, {13,8}, {13,8}, {13,8}, {13,8}, {13,8}, {13,8}, {13,8},
- {12,8}, {12,8}, {12,8}, {12,8}, {12,8}, {12,8}, {12,8}, {12,8},
- {11,8}, {11,8}, {11,8}, {11,8}, {11,8}, {11,8}, {11,8}, {11,8},
- {10,8}, {10,8}, {10,8}, {10,8}, {10,8}, {10,8}, {10,8}, {10,8},
- {9,7}, {9,7}, {9,7}, {9,7}, {9,7}, {9,7}, {9,7}, {9,7},
- {9,7}, {9,7}, {9,7}, {9,7}, {9,7}, {9,7}, {9,7}, {9,7},
- {8,7}, {8,7}, {8,7}, {8,7}, {8,7}, {8,7}, {8,7}, {8,7},
- {8,7}, {8,7}, {8,7}, {8,7}, {8,7}, {8,7}, {8,7}, {8,7}
- };
- /* Table B-12, dct_dc_size_luminance, codes 00xxx ... 11110 */
- static VLCtab DClumtab0[32] =
- { {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
- {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2},
- {0, 3}, {0, 3}, {0, 3}, {0, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3},
- {4, 3}, {4, 3}, {4, 3}, {4, 3}, {5, 4}, {5, 4}, {6, 5}, {ERROR, 0}
- };
- /* Table B-12, dct_dc_size_luminance, codes 111110xxx ... 111111111 */
- static VLCtab DClumtab1[16] =
- { {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6},
- {8, 7}, {8, 7}, {8, 7}, {8, 7}, {9, 8}, {9, 8}, {10,9}, {11,9}
- };
- /* Table B-13, dct_dc_size_chrominance, codes 00xxx ... 11110 */
- static VLCtab DCchromtab0[32] =
- { {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2},
- {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
- {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2},
- {3, 3}, {3, 3}, {3, 3}, {3, 3}, {4, 4}, {4, 4}, {5, 5}, {ERROR, 0}
- };
- /* Table B-13, dct_dc_size_chrominance, codes 111110xxxx ... 1111111111 */
- static VLCtab DCchromtab1[32] =
- { {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6},
- {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6},
- {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7},
- {8, 8}, {8, 8}, {8, 8}, {8, 8}, {9, 9}, {9, 9}, {10,10}, {11,10}
- };
- /* Table B-14, DCT coefficients table zero,
- * codes 0100 ... 1xxx (used for first (DC) coefficient)
- */
- DCTtab DCTtabfirst[12] =
- {
- {0,2,4}, {2,1,4}, {1,1,3}, {1,1,3},
- {0,1,1}, {0,1,1}, {0,1,1}, {0,1,1},
- {0,1,1}, {0,1,1}, {0,1,1}, {0,1,1}
- };
- /* Table B-14, DCT coefficients table zero,
- * codes 0100 ... 1xxx (used for all other coefficients)
- */
- DCTtab DCTtabnext[12] =
- {
- {0,2,4}, {2,1,4}, {1,1,3}, {1,1,3},
- {64,0,2}, {64,0,2}, {64,0,2}, {64,0,2}, /* EOB */
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2}
- };
- /* Table B-14, DCT coefficients table zero,
- * codes 000001xx ... 00111xxx
- */
- DCTtab DCTtab0[60] =
- {
- {65,0,6}, {65,0,6}, {65,0,6}, {65,0,6}, /* Escape */
- {2,2,7}, {2,2,7}, {9,1,7}, {9,1,7},
- {0,4,7}, {0,4,7}, {8,1,7}, {8,1,7},
- {7,1,6}, {7,1,6}, {7,1,6}, {7,1,6},
- {6,1,6}, {6,1,6}, {6,1,6}, {6,1,6},
- {1,2,6}, {1,2,6}, {1,2,6}, {1,2,6},
- {5,1,6}, {5,1,6}, {5,1,6}, {5,1,6},
- {13,1,8}, {0,6,8}, {12,1,8}, {11,1,8},
- {3,2,8}, {1,3,8}, {0,5,8}, {10,1,8},
- {0,3,5}, {0,3,5}, {0,3,5}, {0,3,5},
- {0,3,5}, {0,3,5}, {0,3,5}, {0,3,5},
- {4,1,5}, {4,1,5}, {4,1,5}, {4,1,5},
- {4,1,5}, {4,1,5}, {4,1,5}, {4,1,5},
- {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5},
- {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5}
- };
- /* Table B-15, DCT coefficients table one,
- * codes 000001xx ... 11111111
- */
- DCTtab DCTtab0a[252] =
- {
- {65,0,6}, {65,0,6}, {65,0,6}, {65,0,6}, /* Escape */
- {7,1,7}, {7,1,7}, {8,1,7}, {8,1,7},
- {6,1,7}, {6,1,7}, {2,2,7}, {2,2,7},
- {0,7,6}, {0,7,6}, {0,7,6}, {0,7,6},
- {0,6,6}, {0,6,6}, {0,6,6}, {0,6,6},
- {4,1,6}, {4,1,6}, {4,1,6}, {4,1,6},
- {5,1,6}, {5,1,6}, {5,1,6}, {5,1,6},
- {1,5,8}, {11,1,8}, {0,11,8}, {0,10,8},
- {13,1,8}, {12,1,8}, {3,2,8}, {1,4,8},
- {2,1,5}, {2,1,5}, {2,1,5}, {2,1,5},
- {2,1,5}, {2,1,5}, {2,1,5}, {2,1,5},
- {1,2,5}, {1,2,5}, {1,2,5}, {1,2,5},
- {1,2,5}, {1,2,5}, {1,2,5}, {1,2,5},
- {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5},
- {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5},
- {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
- {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
- {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
- {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
- {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
- {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
- {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
- {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
- {64,0,4}, {64,0,4}, {64,0,4}, {64,0,4}, /* EOB */
- {64,0,4}, {64,0,4}, {64,0,4}, {64,0,4},
- {64,0,4}, {64,0,4}, {64,0,4}, {64,0,4},
- {64,0,4}, {64,0,4}, {64,0,4}, {64,0,4},
- {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
- {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
- {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
- {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
- {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
- {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
- {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
- {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
- {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
- {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
- {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
- {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
- {0,4,5}, {0,4,5}, {0,4,5}, {0,4,5},
- {0,4,5}, {0,4,5}, {0,4,5}, {0,4,5},
- {0,5,5}, {0,5,5}, {0,5,5}, {0,5,5},
- {0,5,5}, {0,5,5}, {0,5,5}, {0,5,5},
- {9,1,7}, {9,1,7}, {1,3,7}, {1,3,7},
- {10,1,7}, {10,1,7}, {0,8,7}, {0,8,7},
- {0,9,7}, {0,9,7}, {0,12,8}, {0,13,8},
- {2,3,8}, {4,2,8}, {0,14,8}, {0,15,8}
- };
- /* Table B-14, DCT coefficients table zero,
- * codes 0000001000 ... 0000001111
- */
- DCTtab DCTtab1[8] =
- {
- {16,1,10}, {5,2,10}, {0,7,10}, {2,3,10},
- {1,4,10}, {15,1,10}, {14,1,10}, {4,2,10}
- };
- /* Table B-15, DCT coefficients table one,
- * codes 000000100x ... 000000111x
- */
- DCTtab DCTtab1a[8] =
- {
- {5,2,9}, {5,2,9}, {14,1,9}, {14,1,9},
- {2,4,10}, {16,1,10}, {15,1,9}, {15,1,9}
- };
- /* Table B-14/15, DCT coefficients table zero / one,
- * codes 000000010000 ... 000000011111
- */
- DCTtab DCTtab2[16] =
- {
- {0,11,12}, {8,2,12}, {4,3,12}, {0,10,12},
- {2,4,12}, {7,2,12}, {21,1,12}, {20,1,12},
- {0,9,12}, {19,1,12}, {18,1,12}, {1,5,12},
- {3,3,12}, {0,8,12}, {6,2,12}, {17,1,12}
- };
- /* Table B-14/15, DCT coefficients table zero / one,
- * codes 0000000010000 ... 0000000011111
- */
- DCTtab DCTtab3[16] =
- {
- {10,2,13}, {9,2,13}, {5,3,13}, {3,4,13},
- {2,5,13}, {1,7,13}, {1,6,13}, {0,15,13},
- {0,14,13}, {0,13,13}, {0,12,13}, {26,1,13},
- {25,1,13}, {24,1,13}, {23,1,13}, {22,1,13}
- };
- /* Table B-14/15, DCT coefficients table zero / one,
- * codes 00000000010000 ... 00000000011111
- */
- DCTtab DCTtab4[16] =
- {
- {0,31,14}, {0,30,14}, {0,29,14}, {0,28,14},
- {0,27,14}, {0,26,14}, {0,25,14}, {0,24,14},
- {0,23,14}, {0,22,14}, {0,21,14}, {0,20,14},
- {0,19,14}, {0,18,14}, {0,17,14}, {0,16,14}
- };
- /* Table B-14/15, DCT coefficients table zero / one,
- * codes 000000000010000 ... 000000000011111
- */
- DCTtab DCTtab5[16] =
- {
- {0,40,15}, {0,39,15}, {0,38,15}, {0,37,15},
- {0,36,15}, {0,35,15}, {0,34,15}, {0,33,15},
- {0,32,15}, {1,14,15}, {1,13,15}, {1,12,15},
- {1,11,15}, {1,10,15}, {1,9,15}, {1,8,15}
- };
- /* Table B-14/15, DCT coefficients table zero / one,
- * codes 0000000000010000 ... 0000000000011111
- */
- DCTtab DCTtab6[16] =
- {
- {1,18,16}, {1,17,16}, {1,16,16}, {1,15,16},
- {6,3,16}, {16,2,16}, {15,2,16}, {14,2,16},
- {13,2,16}, {12,2,16}, {11,2,16}, {31,1,16},
- {30,1,16}, {29,1,16}, {28,1,16}, {27,1,16}
- };