| /* 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} |
| }; |
| |
