Horus Doc || C++ Reference || Class Overview   Pixels   Images   Detector   Geometry   Registry || Doxygen's quick Index  

getvlc.h

00001 // getvlc.h : interface of MPEG-2/1 Video picture, slice, 
00002 //                     macroblock block layer decoder;
00003 //
00004 // This class provides a set of MPEG basic decode functions
00005 //
00006 //*****************************************************************************
00007 // 
00008 //                  MPEG Developing Classes
00009 //
00010 // Copyright (C) 1998, Vision and Neural Networks Laboratory, Computer Science 
00011 // Department, Wayne State University, All Rights Reserved; 
00012 //
00013 //                  Disclaimer of Warranty
00014 //
00015 // MPEG Developing Classes, both binary and source (hereafter, Software)
00016 // is copyrighted by Vision and Neural Networks Laboratory, Computer Science 
00017 // Department, Wayne State University (WSU), and ownership remains with WSU.
00018 //
00019 // Permission is hereby granted, free of charge, to any person obtaining
00020 // a copy of this software and associated documentation files to use, copy,
00021 // and distribute the software, provided that no charge is associated with 
00022 // such copies and that the copyright notice and this statement appears on 
00023 // all copies.
00024 //
00025 // THE SOFTWARE IS AVAILABLE TO THE USER ON AN "AS IS" BASIS, WITHOUT WARRANTY
00026 // OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THE 
00027 // IMPLIED WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
00028 // IN NO EVENT SHALL THE COPYRIGHT-HOLDER BE LIABLE FOR ANY CLAIMS, DAMAGES, OR
00029 // OTHER LIABILITIES OF ANY KIND WHATSOEVER ARISING FROM, OUT OF OR IN CONNECTION
00030 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. THIS 
00031 // DISCLAIMAER OF WARRANTY EXTENDS TO THE USER OF THIS SOFTWARE. ALSO THE WSU 
00032 // DOES NOT REPRESENT OR WARRANT THAT THE SOFTWARE FURNISHED HEREUNDER ARE FREE OF
00033 // INFRINGMENT OF ANY THIRD-PARTY PATENTS.
00034 //
00035 // Many patents of MPEG-1 and MPEG-2 are general enough such that commercial
00036 // implementations, including shareware, are unavoidable subject to royalty fees to
00037 // patent holders, regardless of implementation design.
00038 //
00039 //
00040 // Vision and Neural Networks Laboratory,
00041 // Computer Science Department,
00042 // Wayne State University,
00043 // Detroit, MI 48202.
00044 // Dongge Li(dil@cs.wayne.edu) and Ishwar K. Sethi(sethi@cs.wayne.edu).
00045 //
00047 
00048 #if !defined GETVLC_H
00049 #define GETVLC_H
00050 
00051 
00052 // NOTE: the VLC tables are in a flash format---a transformation
00053 //       of the tables in Annex B to a form more convenient towards 
00054 //       parallel (more than one-bit-at-a-time) decoding;
00055 // The table items with GENERAL_ERROR values should not be visited, in our program
00056 // checking will be performed to garantee those items will no be visited,
00057 // in this case 0 will be normally returned and bFaultFlag is set to true;
00058 
00059 typedef struct VLCtab_tag
00060 {
00061   char cVal, cLen;
00062 } VLCTAB;
00063 
00064 typedef struct DCTtab_tag
00065 {
00066   char cRun, cLevel, cLen;
00067 } DCTTAB;
00068 
00069 // Table B-3, macroblock_type in P-pictures, codes 001..1xx;
00070 const VLCTAB PMB_TAB0[8] = {
00071   {GENERAL_ERROR,0},
00072   {MACROBLOCK_MOTION_FORWARD,3},
00073   {MACROBLOCK_PATTERN,2}, {MACROBLOCK_PATTERN,2},
00074   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,1}, 
00075   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,1},
00076   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,1}, 
00077   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,1}
00078 };
00079 
00080 // Table B-3, macroblock_type in P-pictures, codes 000001..00011x;
00081 const VLCTAB PMB_TAB1[8] = {
00082   {GENERAL_ERROR,0},
00083   {MACROBLOCK_QUANT|MACROBLOCK_INTRA,6},
00084   {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,5}, {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,5},
00085   {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,5}, {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,5},
00086   {MACROBLOCK_INTRA,5}, {MACROBLOCK_INTRA,5}
00087 };
00088 
00089 // Table B-4, macroblock_type in B-pictures, codes 0010..11xx;
00090 const VLCTAB BMB_TAB0[16] = {
00091   {GENERAL_ERROR,0}, 
00092   {GENERAL_ERROR,0},
00093   {MACROBLOCK_MOTION_FORWARD,4},
00094   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,4},
00095   {MACROBLOCK_MOTION_BACKWARD,3}, 
00096   {MACROBLOCK_MOTION_BACKWARD,3},
00097   {MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,3}, 
00098   {MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,3},
00099   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2}, 
00100   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
00101   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2}, 
00102   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
00103   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
00104   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
00105   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
00106   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2}
00107 };
00108 
00109 // Table B-4, macroblock_type in B-pictures, codes 000001..00011x ;
00110 const VLCTAB BMB_TAB1[8] = {
00111   {GENERAL_ERROR,0},
00112   {MACROBLOCK_QUANT|MACROBLOCK_INTRA,6},
00113   {MACROBLOCK_QUANT|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,6},
00114   {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,6},
00115   {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,5},
00116   {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,5},
00117   {MACROBLOCK_INTRA,5}, 
00118   {MACROBLOCK_INTRA,5}
00119 };
00120 
00121 // Table B-5, macroblock_type in spat. scal. I-pictures, codes 0001..1xxx ;
00122 const VLCTAB SP_IMB_TAB[16] = {
00123   {GENERAL_ERROR,0},
00124   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS,4},
00125   {MACROBLOCK_QUANT|MACROBLOCK_INTRA,4},
00126   {MACROBLOCK_INTRA,4},
00127   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2},
00128   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2},
00129   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1},
00130   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1},
00131   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1},
00132   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1}, {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,1}
00133 };
00134 
00135 // Table B-6, macroblock_type in spat. scal. P-pictures, codes 0010..11xx ;
00136 const VLCTAB SP_PMB_TAB0[16] =
00137 {
00138   {GENERAL_ERROR,0},
00139   {GENERAL_ERROR,0},
00140   {MACROBLOCK_MOTION_FORWARD,4},
00141   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD,4},
00142   {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,3}, {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,3},
00143   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,3}, {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,3},
00144   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2}, 
00145   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
00146   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2}, 
00147   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
00148   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
00149   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
00150   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2},
00151   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,2}
00152 };
00153 
00154 // Table B-6, macroblock_type in spat. scal. P-pictures, codes 0000010..000111x ;
00155 const VLCTAB SP_PMB_TAB1[16] = {
00156   {GENERAL_ERROR,0},
00157   {GENERAL_ERROR,0},
00158   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,7},
00159   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS,7},
00160   {MACROBLOCK_PATTERN,7},
00161   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,7},
00162   {MACROBLOCK_QUANT|MACROBLOCK_INTRA,7},
00163   {MACROBLOCK_INTRA,7},
00164   {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,6}, 
00165   {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,6},
00166   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,6}, 
00167   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,6},
00168   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG,6}, 
00169   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG,6},
00170   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_PATTERN,6}, 
00171   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_PATTERN,6}
00172 };
00173 
00174 // Table B-7, macroblock_type in spat. scal. B-pictures, codes 0010..11xx ;
00175 const VLCTAB SP_BMB_TAB0[14] = {
00176   {MACROBLOCK_MOTION_FORWARD,4},
00177   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,4},
00178   {MACROBLOCK_MOTION_BACKWARD,3}, 
00179   {MACROBLOCK_MOTION_BACKWARD,3},
00180   {MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,3}, 
00181   {MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,3},
00182   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2}, 
00183   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
00184   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2}, 
00185   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD,2},
00186   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
00187   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
00188   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2},
00189   {MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,2}
00190 };
00191 
00192 // Table B-7, macroblock_type in spat. scal. B-pictures, codes 0000100..000111x ;
00193 const VLCTAB SP_BMB_TAB1[12] = {
00194   {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,7},
00195   {MACROBLOCK_QUANT|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,7},
00196   {MACROBLOCK_INTRA,7},
00197   {MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,7},
00198   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD,6}, 
00199   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD,6},
00200   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,6}, 
00201   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,6},
00202   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_BACKWARD,6}, 
00203   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_BACKWARD,6},
00204   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,6}, 
00205   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,6}
00206 };
00207 
00208 // Table B-7, macroblock_type in spat. scal. B-pictures, codes 00000100x..000001111 ;
00209 const VLCTAB SP_BMB_TAB2[8] = {
00210   {MACROBLOCK_QUANT|MACROBLOCK_INTRA,8}, 
00211   {MACROBLOCK_QUANT|MACROBLOCK_INTRA,8},
00212   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,8},
00213   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_FORWARD|MACROBLOCK_PATTERN,8},
00214   {SPATIAL_TEMPORAL_WEIGHT_CODE_FLAG|MACROBLOCK_QUANT|MACROBLOCK_MOTION_BACKWARD|MACROBLOCK_PATTERN,9},
00215   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_QUANT|MACROBLOCK_PATTERN,9},
00216   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS,9},
00217   {PERMITTED_SPATIAL_TEMPORAL_WEIGHT_CLASS|MACROBLOCK_PATTERN,9}
00218 };
00219 
00220 // Table B-8, macroblock_type in spat. scal. B-pictures, codes 001..1xx ;
00221 const VLCTAB SNRMB_TAB[8] = {
00222   {GENERAL_ERROR,0},
00223   {0,3},
00224   {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2}, 
00225   {MACROBLOCK_QUANT|MACROBLOCK_PATTERN,2},
00226   {MACROBLOCK_PATTERN,1}, 
00227   {MACROBLOCK_PATTERN,1}, 
00228   {MACROBLOCK_PATTERN,1}, 
00229   {MACROBLOCK_PATTERN,1}
00230 };
00231 
00232 // Table B-10, motion_code, codes 0001 ... 01xx ;
00233 const VLCTAB MV_TAB0[8] =
00234 { {GENERAL_ERROR,0}, {3,3}, {2,2}, {2,2}, {1,1}, {1,1}, {1,1}, {1,1}
00235 };
00236 
00237 // Table B-10, motion_code, codes 0000011 ... 000011x ;
00238 const VLCTAB MV_TAB1[8] =
00239 { {GENERAL_ERROR,0}, {GENERAL_ERROR,0}, {GENERAL_ERROR,0}, {7,6}, {6,6}, {5,6}, {4,5}, {4,5}
00240 };
00241 
00242 // Table B-10, motion_code, codes 0000001100 ... 000001011x ;
00243 const VLCTAB MV_TAB2[12] =
00244 { {16,9}, {15,9}, {14,9}, {13,9},
00245   {12,9}, {11,9}, {10,8}, {10,8},
00246   {9,8},  {9,8},  {8,8},  {8,8}
00247 };
00248 
00249 // Table B-9, coded_block_pattern, codes 01000 ... 111xx ;
00250 const VLCTAB CBP_TAB0[32] =
00251 { {GENERAL_ERROR,0}, {GENERAL_ERROR,0}, {GENERAL_ERROR,0}, {GENERAL_ERROR,0},
00252   {GENERAL_ERROR,0}, {GENERAL_ERROR,0}, {GENERAL_ERROR,0}, {GENERAL_ERROR,0},
00253   {62,5}, {2,5},  {61,5}, {1,5},  {56,5}, {52,5}, {44,5}, {28,5},
00254   {40,5}, {20,5}, {48,5}, {12,5}, {32,4}, {32,4}, {16,4}, {16,4},
00255   {8,4},  {8,4},  {4,4},  {4,4},  {60,3}, {60,3}, {60,3}, {60,3}
00256 };
00257 
00258 // Table B-9, coded_block_pattern, codes 00000100 ... 001111xx ;
00259 const VLCTAB CBP_TAB1[64] =
00260 { {GENERAL_ERROR,0}, {GENERAL_ERROR,0}, {GENERAL_ERROR,0}, {GENERAL_ERROR,0},
00261   {58,8}, {54,8}, {46,8}, {30,8},
00262   {57,8}, {53,8}, {45,8}, {29,8}, {38,8}, {26,8}, {37,8}, {25,8},
00263   {43,8}, {23,8}, {51,8}, {15,8}, {42,8}, {22,8}, {50,8}, {14,8},
00264   {41,8}, {21,8}, {49,8}, {13,8}, {35,8}, {19,8}, {11,8}, {7,8},
00265   {34,7}, {34,7}, {18,7}, {18,7}, {10,7}, {10,7}, {6,7},  {6,7},
00266   {33,7}, {33,7}, {17,7}, {17,7}, {9,7},  {9,7},  {5,7},  {5,7},
00267   {63,6}, {63,6}, {63,6}, {63,6}, {3,6},  {3,6},  {3,6},  {3,6},
00268   {36,6}, {36,6}, {36,6}, {36,6}, {24,6}, {24,6}, {24,6}, {24,6}
00269 };
00270 
00271 // Table B-9, coded_block_pattern, codes 000000001 ... 000000111 ;
00272 const VLCTAB CBP_TAB2[8] =
00273 { {GENERAL_ERROR,0}, {0,9}, {39,9}, {27,9}, {59,9}, {55,9}, {47,9}, {31,9}
00274 };
00275 
00276 // Table B-1, macroblock_address_increment, codes 00010 ... 011xx ;
00277 const VLCTAB MBA_TAB1[16] =
00278 { {GENERAL_ERROR,0}, {GENERAL_ERROR,0}, {7,5}, {6,5}, {5,4}, {5,4}, {4,4}, {4,4},
00279   {3,3}, {3,3}, {3,3}, {3,3}, {2,3}, {2,3}, {2,3}, {2,3}
00280 };
00281 
00282 // Table B-1, macroblock_address_increment, codes 00000011000 ... 0000111xxxx ;
00283 const VLCTAB MBA_TAB2[104] =
00284 {
00285   {33,11}, {32,11}, {31,11}, {30,11}, {29,11}, {28,11}, {27,11}, {26,11},
00286   {25,11}, {24,11}, {23,11}, {22,11}, {21,10}, {21,10}, {20,10}, {20,10},
00287   {19,10}, {19,10}, {18,10}, {18,10}, {17,10}, {17,10}, {16,10}, {16,10},
00288   {15,8},  {15,8},  {15,8},  {15,8},  {15,8},  {15,8},  {15,8},  {15,8},
00289   {14,8},  {14,8},  {14,8},  {14,8},  {14,8},  {14,8},  {14,8},  {14,8},
00290   {13,8},  {13,8},  {13,8},  {13,8},  {13,8},  {13,8},  {13,8},  {13,8},
00291   {12,8},  {12,8},  {12,8},  {12,8},  {12,8},  {12,8},  {12,8},  {12,8},
00292   {11,8},  {11,8},  {11,8},  {11,8},  {11,8},  {11,8},  {11,8},  {11,8},
00293   {10,8},  {10,8},  {10,8},  {10,8},  {10,8},  {10,8},  {10,8},  {10,8},
00294   {9,7},   {9,7},   {9,7},   {9,7},   {9,7},   {9,7},   {9,7},   {9,7},
00295   {9,7},   {9,7},   {9,7},   {9,7},   {9,7},   {9,7},   {9,7},   {9,7},
00296   {8,7},   {8,7},   {8,7},   {8,7},   {8,7},   {8,7},   {8,7},   {8,7},
00297   {8,7},   {8,7},   {8,7},   {8,7},   {8,7},   {8,7},   {8,7},   {8,7}
00298 };
00299 
00300 // Table B-12, dct_dc_size_luminance, codes 00xxx ... 11110 ;
00301 const VLCTAB DC_LUM_TAB0[32] =
00302 { {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
00303   {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2},
00304   {0, 3}, {0, 3}, {0, 3}, {0, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3},
00305   {4, 3}, {4, 3}, {4, 3}, {4, 3}, {5, 4}, {5, 4}, {6, 5}, {GENERAL_ERROR, 0}
00306 };
00307 
00308 // Table B-12, dct_dc_size_luminance, codes 111110xxx ... 111111111 ;
00309 const VLCTAB DC_LUM_TAB1[16] =
00310 { {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6},
00311   {8, 7}, {8, 7}, {8, 7}, {8, 7}, {9, 8}, {9, 8}, {10,9}, {11,9}
00312 };
00313 
00314 // Table B-13, dct_dc_size_chrominance, codes 00xxx ... 11110 ;
00315 const VLCTAB DC_CHROMA_TAB0[32] =
00316 { {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2},
00317   {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
00318   {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2},
00319   {3, 3}, {3, 3}, {3, 3}, {3, 3}, {4, 4}, {4, 4}, {5, 5}, {GENERAL_ERROR, 0}
00320 };
00321 
00322 // Table B-13, dct_dc_size_chrominance, codes 111110xxxx ... 1111111111 ;
00323 const VLCTAB DC_CHROMA_TAB1[32] =
00324 { {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6},
00325   {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6}, {6, 6},
00326   {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7},
00327   {8, 8}, {8, 8}, {8, 8}, {8, 8}, {9, 9}, {9, 9}, {10,10}, {11,10}
00328 };
00329 
00330 // Table B-14, DCT coefficients table zero, codes 0100 ... 1xxx (used for first (DC) coefficient);
00331 const DCTTAB DCT_TAB_FIRST[12] =
00332 {
00333   {0,2,4}, {2,1,4}, {1,1,3}, {1,1,3},
00334   {0,1,1}, {0,1,1}, {0,1,1}, {0,1,1},
00335   {0,1,1}, {0,1,1}, {0,1,1}, {0,1,1}
00336 };
00337 
00338 // Table B-14, DCT coefficients table zero, codes 0100 ... 1xxx (used for all other coefficients);
00339 const DCTTAB DCT_TAB_NEXT[12] =
00340 {
00341   {0,2,4},  {2,1,4},  {1,1,3},  {1,1,3},
00342   {64,0,2}, {64,0,2}, {64,0,2}, {64,0,2}, /* EOB */
00343   {0,1,2},  {0,1,2},  {0,1,2},  {0,1,2}
00344 };
00345 
00346 // Table B-14, DCT coefficients table zero, codes 000001xx ... 00111xxx;
00347 const DCTTAB DCT_TAB0[60] =
00348 {
00349   {65,0,6}, {65,0,6}, {65,0,6}, {65,0,6}, /* Escape */
00350   {2,2,7}, {2,2,7}, {9,1,7}, {9,1,7},
00351   {0,4,7}, {0,4,7}, {8,1,7}, {8,1,7},
00352   {7,1,6}, {7,1,6}, {7,1,6}, {7,1,6},
00353   {6,1,6}, {6,1,6}, {6,1,6}, {6,1,6},
00354   {1,2,6}, {1,2,6}, {1,2,6}, {1,2,6},
00355   {5,1,6}, {5,1,6}, {5,1,6}, {5,1,6},
00356   {13,1,8}, {0,6,8}, {12,1,8}, {11,1,8},
00357   {3,2,8}, {1,3,8}, {0,5,8}, {10,1,8},
00358   {0,3,5}, {0,3,5}, {0,3,5}, {0,3,5},
00359   {0,3,5}, {0,3,5}, {0,3,5}, {0,3,5},
00360   {4,1,5}, {4,1,5}, {4,1,5}, {4,1,5},
00361   {4,1,5}, {4,1,5}, {4,1,5}, {4,1,5},
00362   {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5},
00363   {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5}
00364 };
00365 
00366 // Table B-15, DCT coefficients table one, codes 000001xx ... 11111111;
00367 const DCTTAB DCT_TAB0a[252] =
00368 {
00369   {65,0,6}, {65,0,6}, {65,0,6}, {65,0,6}, /* Escape */
00370   {7,1,7}, {7,1,7}, {8,1,7}, {8,1,7},
00371   {6,1,7}, {6,1,7}, {2,2,7}, {2,2,7},
00372   {0,7,6}, {0,7,6}, {0,7,6}, {0,7,6},
00373   {0,6,6}, {0,6,6}, {0,6,6}, {0,6,6},
00374   {4,1,6}, {4,1,6}, {4,1,6}, {4,1,6},
00375   {5,1,6}, {5,1,6}, {5,1,6}, {5,1,6},
00376   {1,5,8}, {11,1,8}, {0,11,8}, {0,10,8},
00377   {13,1,8}, {12,1,8}, {3,2,8}, {1,4,8},
00378   {2,1,5}, {2,1,5}, {2,1,5}, {2,1,5},
00379   {2,1,5}, {2,1,5}, {2,1,5}, {2,1,5},
00380   {1,2,5}, {1,2,5}, {1,2,5}, {1,2,5},
00381   {1,2,5}, {1,2,5}, {1,2,5}, {1,2,5},
00382   {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5},
00383   {3,1,5}, {3,1,5}, {3,1,5}, {3,1,5},
00384   {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
00385   {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
00386   {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
00387   {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
00388   {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
00389   {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
00390   {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
00391   {1,1,3}, {1,1,3}, {1,1,3}, {1,1,3},
00392   {64,0,4}, {64,0,4}, {64,0,4}, {64,0,4}, /* EOB */
00393   {64,0,4}, {64,0,4}, {64,0,4}, {64,0,4},
00394   {64,0,4}, {64,0,4}, {64,0,4}, {64,0,4},
00395   {64,0,4}, {64,0,4}, {64,0,4}, {64,0,4},
00396   {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
00397   {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
00398   {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
00399   {0,3,4}, {0,3,4}, {0,3,4}, {0,3,4},
00400   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00401   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00402   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00403   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00404   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00405   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00406   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00407   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00408   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00409   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00410   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00411   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00412   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00413   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00414   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00415   {0,1,2}, {0,1,2}, {0,1,2}, {0,1,2},
00416   {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
00417   {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
00418   {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
00419   {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
00420   {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
00421   {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
00422   {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
00423   {0,2,3}, {0,2,3}, {0,2,3}, {0,2,3},
00424   {0,4,5}, {0,4,5}, {0,4,5}, {0,4,5},
00425   {0,4,5}, {0,4,5}, {0,4,5}, {0,4,5},
00426   {0,5,5}, {0,5,5}, {0,5,5}, {0,5,5},
00427   {0,5,5}, {0,5,5}, {0,5,5}, {0,5,5},
00428   {9,1,7}, {9,1,7}, {1,3,7}, {1,3,7},
00429   {10,1,7}, {10,1,7}, {0,8,7}, {0,8,7},
00430   {0,9,7}, {0,9,7}, {0,12,8}, {0,13,8},
00431   {2,3,8}, {4,2,8}, {0,14,8}, {0,15,8}
00432 };
00433 
00434 // Table B-14, DCT coefficients table zero, codes 0000001000 ... 0000001111;
00435 const DCTTAB DCT_TAB1[8] =
00436 {
00437   {16,1,10}, {5,2,10}, {0,7,10}, {2,3,10},
00438   {1,4,10}, {15,1,10}, {14,1,10}, {4,2,10}
00439 };
00440 
00441 // Table B-15, DCT coefficients table one, codes 000000100x ... 000000111x;
00442 const DCTTAB DCT_TAB1a[8] =
00443 {
00444   {5,2,9}, {5,2,9}, {14,1,9}, {14,1,9},
00445   {2,4,10}, {16,1,10}, {15,1,9}, {15,1,9}
00446 };
00447 
00448 // Table B-14/15, DCT coefficients table zero / one, codes 000000010000 ... 000000011111;
00449 const DCTTAB DCT_TAB2[16] =
00450 {
00451   {0,11,12}, {8,2,12}, {4,3,12}, {0,10,12},
00452   {2,4,12}, {7,2,12}, {21,1,12}, {20,1,12},
00453   {0,9,12}, {19,1,12}, {18,1,12}, {1,5,12},
00454   {3,3,12}, {0,8,12}, {6,2,12}, {17,1,12}
00455 };
00456 
00457 // Table B-14/15, DCT coefficients table zero / one, codes 0000000010000 ... 0000000011111;
00458 const DCTTAB DCT_TAB3[16] =
00459 {
00460   {10,2,13}, {9,2,13}, {5,3,13}, {3,4,13},
00461   {2,5,13}, {1,7,13}, {1,6,13}, {0,15,13},
00462   {0,14,13}, {0,13,13}, {0,12,13}, {26,1,13},
00463   {25,1,13}, {24,1,13}, {23,1,13}, {22,1,13}
00464 };
00465 
00466 // Table B-14/15, DCT coefficients table zero / one, codes 00000000010000 ... 00000000011111;
00467 const DCTTAB DCT_TAB4[16] =
00468 {
00469   {0,31,14}, {0,30,14}, {0,29,14}, {0,28,14},
00470   {0,27,14}, {0,26,14}, {0,25,14}, {0,24,14},
00471   {0,23,14}, {0,22,14}, {0,21,14}, {0,20,14},
00472   {0,19,14}, {0,18,14}, {0,17,14}, {0,16,14}
00473 };
00474 
00475 // Table B-14/15, DCT coefficients table zero / one, codes 000000000010000 ... 000000000011111;
00476 const DCTTAB DCT_TAB5[16] =
00477 {
00478   {0,40,15}, {0,39,15}, {0,38,15}, {0,37,15},
00479   {0,36,15}, {0,35,15}, {0,34,15}, {0,33,15},
00480   {0,32,15}, {1,14,15}, {1,13,15}, {1,12,15},
00481   {1,11,15}, {1,10,15}, {1,9,15}, {1,8,15}
00482 };
00483 
00484 // Table B-14/15, DCT coefficients table zero / one, codes 0000000000010000 ... 0000000000011111;
00485 const DCTTAB DCT_TAB6[16] =
00486 {
00487   {1,18,16}, {1,17,16}, {1,16,16}, {1,15,16},
00488   {6,3,16}, {16,2,16}, {15,2,16}, {14,2,16},
00489   {13,2,16}, {12,2,16}, {11,2,16}, {31,1,16},
00490   {30,1,16}, {29,1,16}, {28,1,16}, {27,1,16}
00491 };
00492 
00493 
00494 #endif //GETVLC_H

Generated on Tue Feb 3 14:18:31 2004 for C++Reference by doxygen1.2.12 written by Dimitri van Heesch, © 1997-2001