178 lines
4.7 KiB
C
178 lines
4.7 KiB
C
/*!
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************************************************************************
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* \file macroblock.h
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*
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* \brief
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* Arrays for macroblock encoding
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*
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* \author
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* Inge Lille-Langoy <inge.lille-langoy@telenor.com>
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* Copyright (C) 1999 Telenor Satellite Services, Norway
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************************************************************************
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*/
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#ifndef _MACROBLOCK_H_
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#define _MACROBLOCK_H_
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#include "global.h"
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#include "mbuffer.h"
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#include "block.h"
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//! single scan pattern
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static const byte SNGL_SCAN[16][2] =
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{
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{0,0},{1,0},{0,1},{0,2},
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{1,1},{2,0},{3,0},{2,1},
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{1,2},{0,3},{1,3},{2,2},
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{3,1},{3,2},{2,3},{3,3}
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};
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static const byte SNGL_SCAN_1D[16] = { 0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15};
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static const byte SNGL_SCAN_DC[16] = { 0, 1, 2, 8, 3, 4, 5, 6, 9, 10, 11, 12, 7, 13, 14, 15};
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//! field scan pattern
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static const byte FIELD_SCAN[16][2] =
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{
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{0,0},{0,1},{1,0},{0,2},
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{0,3},{1,1},{1,2},{1,3},
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{2,0},{2,1},{2,2},{2,3},
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{3,0},{3,1},{3,2},{3,3}
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};
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static const byte FIELD_SCAN_1D[16] = {0, 4, 1, 8, 12, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15};
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static const byte FIELD_SCAN_DC[16] = {0, 2, 1, 8, 10, 3, 9, 11, 4, 6, 12, 14, 5, 7, 13, 15};
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//! used to control block sizes : Not used/16x16/16x8/8x16/8x8/8x4/4x8/4x4
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static const int BLOCK_STEP[8][2]=
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{
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{0,0},{4,4},{4,2},{2,4},{2,2},{2,1},{1,2},{1,1}
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};
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//! single scan pattern
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static const byte SNGL_SCAN8x8[64][2] = {
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{0,0}, {1,0}, {0,1}, {0,2}, {1,1}, {2,0}, {3,0}, {2,1}, {1,2}, {0,3}, {0,4}, {1,3}, {2,2}, {3,1}, {4,0}, {5,0},
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{4,1}, {3,2}, {2,3}, {1,4}, {0,5}, {0,6}, {1,5}, {2,4}, {3,3}, {4,2}, {5,1}, {6,0}, {7,0}, {6,1}, {5,2}, {4,3},
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{3,4}, {2,5}, {1,6}, {0,7}, {1,7}, {2,6}, {3,5}, {4,4}, {5,3}, {6,2}, {7,1}, {7,2}, {6,3}, {5,4}, {4,5}, {3,6},
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{2,7}, {3,7}, {4,6}, {5,5}, {6,4}, {7,3}, {7,4}, {6,5}, {5,6}, {4,7}, {5,7}, {6,6}, {7,5}, {7,6}, {6,7}, {7,7}
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};
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static const byte SNGL_SCAN8x8_1D[64] =
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{
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0, 1, 8, 16, 9, 2, 3, 10,
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17, 24, 32, 25, 18, 11, 4, 5,
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12, 19, 26, 33, 40, 48, 41, 34,
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27, 20, 13, 6, 7, 14, 21, 28,
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35, 42, 49, 56, 57, 50, 43, 36,
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29, 22, 15, 23, 30, 37, 44, 51,
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58, 59, 52, 45, 38, 31, 39, 46,
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53, 60, 61, 54, 47, 55, 62, 63
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};
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//! field scan pattern
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static const byte FIELD_SCAN8x8[64][2] = { // 8x8
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{0,0}, {0,1}, {0,2}, {1,0}, {1,1}, {0,3}, {0,4}, {1,2}, {2,0}, {1,3}, {0,5}, {0,6}, {0,7}, {1,4}, {2,1}, {3,0},
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{2,2}, {1,5}, {1,6}, {1,7}, {2,3}, {3,1}, {4,0}, {3,2}, {2,4}, {2,5}, {2,6}, {2,7}, {3,3}, {4,1}, {5,0}, {4,2},
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{3,4}, {3,5}, {3,6}, {3,7}, {4,3}, {5,1}, {6,0}, {5,2}, {4,4}, {4,5}, {4,6}, {4,7}, {5,3}, {6,1}, {6,2}, {5,4},
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{5,5}, {5,6}, {5,7}, {6,3}, {7,0}, {7,1}, {6,4}, {6,5}, {6,6}, {6,7}, {7,2}, {7,3}, {7,4}, {7,5}, {7,6}, {7,7}
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};
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static const byte FIELD_SCAN8x8_1D[64] =
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{
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0, 8, 16, 1, 9, 24, 32, 17,
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2, 25, 40, 48, 56, 33, 10, 3,
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18, 41, 49, 57, 26, 11, 4, 19,
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34, 42, 50, 58, 27, 12, 5, 20,
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35, 43, 51, 59, 28, 13, 6, 21,
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36, 44, 52, 60, 29, 14, 22, 37,
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45, 53, 61, 30, 7, 15, 38, 46,
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54, 62, 23, 31, 39, 47, 55, 63
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};
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//! single scan pattern
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static const byte SCAN_YUV422[8][2] =
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{
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{0,0},{0,1},
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{1,0},{0,2},
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{0,3},{1,1},
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{1,2},{1,3}
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};
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static const unsigned char cbp_blk_chroma[8][4] =
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{ {16, 17, 18, 19},
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{20, 21, 22, 23},
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{24, 25, 26, 27},
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{28, 29, 30, 31},
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{32, 33, 34, 35},
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{36, 37, 38, 39},
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{40, 41, 42, 43},
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{44, 45, 46, 47}
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};
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static const unsigned char cofuv_blk_x[3][8][4] =
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{ { {0, 1, 0, 1},
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{0, 1, 0, 1},
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{0, 0, 0, 0},
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{0, 0, 0, 0},
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{0, 0, 0, 0},
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{0, 0, 0, 0},
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{0, 0, 0, 0},
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{0, 0, 0, 0} },
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{ {0, 1, 0, 1},
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{0, 1, 0, 1},
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{0, 1, 0, 1},
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{0, 1, 0, 1},
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{0, 0, 0, 0},
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{0, 0, 0, 0},
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{0, 0, 0, 0},
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{0, 0, 0, 0} },
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{ {0, 1, 0, 1},
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{2, 3, 2, 3},
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{0, 1, 0, 1},
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{2, 3, 2, 3},
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{0, 1, 0, 1},
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{2, 3, 2, 3},
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{0, 1, 0, 1},
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{2, 3, 2, 3} }
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};
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static const unsigned char cofuv_blk_y[3][8][4] =
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{
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{ { 0, 0, 1, 1},
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{ 0, 0, 1, 1},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0} },
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{ { 0, 0, 1, 1},
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{ 2, 2, 3, 3},
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{ 0, 0, 1, 1},
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{ 2, 2, 3, 3},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0},
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{ 0, 0, 0, 0} },
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{ { 0, 0, 1, 1},
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{ 0, 0, 1, 1},
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{ 2, 2, 3, 3},
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{ 2, 2, 3, 3},
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{ 0, 0, 1, 1},
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{ 0, 0, 1, 1},
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{ 2, 2, 3, 3},
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{ 2, 2, 3, 3}}
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};
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extern void setup_slice_methods(Slice *currSlice);
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extern void get_neighbors(Macroblock *currMB, PixelPos *block, int mb_x, int mb_y, int blockshape_x);
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extern void get_neighbors0016(Macroblock *currMB, PixelPos *block);
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extern void start_macroblock (Slice *currSlice, Macroblock **currMB);
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extern int decode_one_macroblock(Macroblock *currMB, StorablePicture *dec_picture);
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extern Boolean exit_macroblock (Slice *currSlice, int eos_bit);
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#endif
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