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1205 lines
52 KiB
1205 lines
52 KiB
/* |
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* |
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* Copyright (C) 2002 the xine project |
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* Copyright (C) 2002 the ffmpeg project |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* Ported to mplayer by Arpi <arpi@thot.banki.hu> |
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* Ported to libavcodec by Nick Kurshev <nickols_k@mail.ru> |
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* |
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*/ |
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//#define DEBUG_SVQ1 |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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|
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#include "common.h" |
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#include "avcodec.h" |
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#include "dsputil.h" |
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#include "mpegvideo.h" |
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#include "bswap.h" |
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#define bit_buffer_t GetBitContext |
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static inline unsigned int get_bit_cache(GetBitContext *s){ |
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OPEN_READER(re, s) |
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UPDATE_CACHE(re, s) |
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return GET_CACHE(re, s); |
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// CLOSE_READER(re, s) |
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} |
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|
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/* variable length (bit) code */ |
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typedef struct vlc_code_s { |
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int16_t value :10, |
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length :6; |
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} vlc_code_t; |
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|
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#define MEDIAN(a,b,c) (((a < b) != (b >= c)) ? b : (((a < c) != (c > b)) ? c : a)) |
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#define SVQ1_BLOCK_SKIP 0 |
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#define SVQ1_BLOCK_INTER 1 |
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#define SVQ1_BLOCK_INTER_4V 2 |
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#define SVQ1_BLOCK_INTRA 3 |
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|
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/* motion vector (prediction) */ |
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typedef struct svq1_pmv_s { |
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int x; |
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int y; |
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} svq1_pmv_t; |
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|
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#include "svq1_cb.h" |
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|
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/* block type, codes 000 .. 1xx */ |
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static vlc_code_t svq1_block_type_table[8] = { |
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{ SVQ1_BLOCK_INTRA, 3 }, { SVQ1_BLOCK_INTER_4V, 3 }, |
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{ SVQ1_BLOCK_INTER, 2 }, { SVQ1_BLOCK_INTER, 2 }, |
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{ SVQ1_BLOCK_SKIP, 1 }, { SVQ1_BLOCK_SKIP, 1 }, |
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{ SVQ1_BLOCK_SKIP, 1 }, { SVQ1_BLOCK_SKIP, 1 } |
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}; |
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|
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/* motion vector, codes 0000011 .. 011xxxx */ |
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static vlc_code_t svq1_motion_table_0[61] = { |
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{ 7, 8 }, { 6, 8 }, { 5, 8 }, { 4, 7 }, { 4, 7 }, |
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{ 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, |
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{ 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, |
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{ 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 } |
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}; |
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/* motion vector, codes 000000000010 ... 0000010111xx */ |
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static vlc_code_t svq1_motion_table_1[94] = { |
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{32, 13}, {31, 13}, {30, 12}, {30, 12}, {29, 12}, {29, 12}, |
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{28, 12}, {28, 12}, {27, 12}, {27, 12}, {26, 12}, {26, 12}, {25, 12}, {25, 12}, |
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{24, 11}, {24, 11}, {24, 11}, {24, 11}, {23, 11}, {23, 11}, {23, 11}, {23, 11}, |
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{22, 11}, {22, 11}, {22, 11}, {22, 11}, {21, 11}, {21, 11}, {21, 11}, {21, 11}, |
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{20, 11}, {20, 11}, {20, 11}, {20, 11}, {19, 11}, {19, 11}, {19, 11}, {19, 11}, |
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{18, 11}, {18, 11}, {18, 11}, {18, 11}, {17, 11}, {17, 11}, {17, 11}, {17, 11}, |
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{16, 11}, {16, 11}, {16, 11}, {16, 11}, {15, 11}, {15, 11}, {15, 11}, {15, 11}, |
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{14, 11}, {14, 11}, {14, 11}, {14, 11}, {13, 11}, {13, 11}, {13, 11}, {13, 11}, |
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{12, 11}, {12, 11}, {12, 11}, {12, 11}, {11, 11}, {11, 11}, {11, 11}, {11, 11}, |
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{10, 10}, {10, 10}, {10, 10}, {10, 10}, {10, 10}, {10, 10}, {10, 10}, {10, 10}, |
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{ 9, 10}, { 9, 10}, { 9, 10}, { 9, 10}, { 9, 10}, { 9, 10}, { 9, 10}, { 9, 10}, |
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{ 8, 10}, { 8, 10}, { 8, 10}, { 8, 10}, { 8, 10}, { 8, 10}, { 8, 10}, { 8, 10}, |
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}; |
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|
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/* inter-coded vector codebook count tables, codes 000000 ... 111111 */ |
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static vlc_code_t svq1_inter_vector_tables[6][64] = { |
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/* 4x2 vector, codes 0000xxx ... 11xxxxx */ |
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{ { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, |
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{ 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, |
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{ 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, |
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{ 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, |
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{-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, |
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{-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 } }, |
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|
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/* 4x4 vector, codes 0000xxx ... 11xxxxx */ |
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{ { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, |
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{ 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, |
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{ 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, |
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{ 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, |
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{-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, |
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{-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 } }, |
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|
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/* 8x4 vector, codes 00000xx ... 1xxxxxx */ |
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{ { 6, 5 }, { 6, 5 }, { 5, 5 }, { 5, 5 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, |
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{ 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 } }, |
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|
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/* 8x8 vector, codes 00000xx ... 1xxxxxx */ |
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{ { 6, 5 }, { 6, 5 }, { 5, 5 }, { 5, 5 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, |
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{ 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 } }, |
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|
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/* 16x8 vector, codes 00000xx ... 1xxxxxx */ |
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{ { 6, 5 }, { 6, 5 }, { 5, 5 }, { 5, 5 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, |
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{ 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 } }, |
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|
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/* 16x16 vector, codes 000000x ... 1xxxxxx */ |
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{ { 6, 6 }, { 5, 6 }, { 4, 5 }, { 4, 5 }, { 3, 5 }, { 3, 5 }, { 2, 5 }, { 2, 5 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, |
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{ 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, |
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{-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 } } |
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}; |
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|
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/* vector codebook count tables, codes 0000000 ... 1111111 */ |
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static vlc_code_t svq1_intra_vector_tables[6][128] = { |
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/* 4x2 vector, codes 00000xx ... 1xxxxxx */ |
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{ { 5, 5 }, { 5, 5 }, { 5, 5 }, { 5, 5 }, {-1, 5 }, {-1, 5 }, {-1, 5 }, {-1, 5 }, |
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{ 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, |
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{ 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, |
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{ 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, |
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{ 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, |
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{ 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } }, |
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|
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/* 4x4 vector, codes 0000xxx ... 11xxxxx */ |
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{ { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, |
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{-1, 4 }, {-1, 4 }, {-1, 4 }, {-1, 4 }, {-1, 4 }, {-1, 4 }, {-1, 4 }, {-1, 4 }, |
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{ 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, |
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{ 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, |
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{ 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, |
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{ 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, |
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{ 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, |
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{ 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, |
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{ 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, |
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{ 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, |
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{ 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, |
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{ 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, |
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{ 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 } }, |
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|
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/* 8x4 vector, codes 00000xx ... 1xxxxxx */ |
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{ { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, {-1, 5 }, {-1, 5 }, {-1, 5 }, {-1, 5 }, |
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{ 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, |
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{ 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, |
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{ 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, |
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{ 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, |
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{ 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } }, |
|
|
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/* 8x8 vector, codes 000000x ... 1xxxxxx */ |
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{ { 2, 6 }, { 2, 6 }, {-1, 6 }, {-1, 6 }, { 5, 5 }, { 5, 5 }, { 5, 5 }, { 5, 5 }, |
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{ 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, |
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{ 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, |
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{ 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, |
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{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
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{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } }, |
|
|
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/* 16x8 vector, codes 000000x ... 1xxxxxx */ |
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{ { 4, 6 }, { 4, 6 }, {-1, 6 }, {-1, 6 }, { 5, 5 }, { 5, 5 }, { 5, 5 }, { 5, 5 }, |
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{ 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, |
|
{ 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, |
|
{ 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } }, |
|
|
|
/* 16x16 vector, codes 0000000 ... 1xxxxxx */ |
|
{ { 5, 7 }, {-1, 7 }, { 4, 6 }, { 4, 6 }, { 6, 5 }, { 6, 5 }, { 6, 5 }, { 6, 5 }, |
|
{ 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, |
|
{ 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, |
|
{ 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } } |
|
}; |
|
|
|
/* intra mean value, codes 00100101 ... 1111xxxx */ |
|
static vlc_code_t svq1_intra_mean_table_0[219] = { |
|
{135, 8 }, {136, 8 }, {165, 8 }, |
|
{134, 8 }, {129, 8 }, {164, 8 }, {163, 8 }, {133, 8 }, {162, 8 }, {174, 8 }, {175, 8 }, |
|
{161, 8 }, {160, 8 }, {159, 8 }, {158, 8 }, {157, 8 }, {156, 8 }, {155, 8 }, {154, 8 }, |
|
{153, 8 }, {151, 8 }, {152, 8 }, {132, 8 }, {110, 8 }, {131, 8 }, {108, 8 }, {130, 8 }, |
|
{166, 8 }, {105, 8 }, {104, 8 }, {103, 8 }, {127, 8 }, {101, 8 }, {167, 8 }, {168, 8 }, |
|
{ 98, 8 }, {128, 8 }, { 48, 8 }, { 95, 8 }, { 62, 8 }, { 93, 8 }, { 92, 8 }, { 91, 8 }, |
|
{ 90, 8 }, { 89, 8 }, { 60, 8 }, { 87, 8 }, { 86, 8 }, { 57, 8 }, { 84, 8 }, { 83, 8 }, |
|
{ 82, 8 }, { 81, 8 }, { 80, 8 }, { 79, 8 }, { 78, 8 }, { 77, 8 }, { 76, 8 }, { 75, 8 }, |
|
{ 74, 8 }, { 73, 8 }, { 72, 8 }, { 71, 8 }, { 70, 8 }, { 69, 8 }, { 68, 8 }, { 67, 8 }, |
|
{ 66, 8 }, { 65, 8 }, { 56, 8 }, { 63, 8 }, { 23, 8 }, { 61, 8 }, { 30, 8 }, { 59, 8 }, |
|
{ 58, 8 }, { 52, 8 }, { 29, 8 }, { 55, 8 }, { 54, 8 }, { 53, 8 }, { 50, 8 }, { 51, 8 }, |
|
{ 22, 8 }, { 49, 8 }, { 85, 7 }, { 85, 7 }, { 97, 7 }, { 97, 7 }, { 88, 7 }, { 88, 7 }, |
|
{ 64, 7 }, { 64, 7 }, { 94, 7 }, { 94, 7 }, {106, 7 }, {106, 7 }, {107, 7 }, {107, 7 }, |
|
{109, 7 }, {109, 7 }, {111, 7 }, {111, 7 }, {112, 7 }, {112, 7 }, {113, 7 }, {113, 7 }, |
|
{114, 7 }, {114, 7 }, {115, 7 }, {115, 7 }, {116, 7 }, {116, 7 }, {117, 7 }, {117, 7 }, |
|
{118, 7 }, {118, 7 }, {119, 7 }, {119, 7 }, {120, 7 }, {120, 7 }, { 99, 7 }, { 99, 7 }, |
|
{102, 7 }, {102, 7 }, { 28, 7 }, { 28, 7 }, {100, 7 }, {100, 7 }, { 96, 7 }, { 96, 7 }, |
|
{139, 7 }, {139, 7 }, { 24, 7 }, { 24, 7 }, { 1, 7 }, { 1, 7 }, {138, 7 }, {138, 7 }, |
|
{121, 7 }, {121, 7 }, {122, 7 }, {122, 7 }, {123, 7 }, {123, 7 }, {124, 7 }, {124, 7 }, |
|
{125, 7 }, {125, 7 }, {126, 7 }, {126, 7 }, {137, 7 }, {137, 7 }, {140, 7 }, {140, 7 }, |
|
{150, 7 }, {150, 7 }, {144, 7 }, {144, 7 }, {141, 7 }, {141, 7 }, {142, 7 }, {142, 7 }, |
|
{143, 7 }, {143, 7 }, {145, 7 }, {145, 7 }, {147, 7 }, {147, 7 }, {146, 7 }, {146, 7 }, |
|
{ 27, 6 }, { 27, 6 }, { 27, 6 }, { 27, 6 }, {148, 6 }, {148, 6 }, {148, 6 }, {148, 6 }, |
|
{149, 6 }, {149, 6 }, {149, 6 }, {149, 6 }, { 0, 6 }, { 0, 6 }, { 0, 6 }, { 0, 6 }, |
|
{ 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, |
|
{ 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, |
|
{ 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, |
|
{ 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 } |
|
}; |
|
|
|
/* intra mean value, codes 0000001101 ... 001001001x */ |
|
static vlc_code_t svq1_intra_mean_table_1[135] = { |
|
{218, 10}, {219, 10}, {220, 10}, |
|
{221, 10}, {222, 10}, {217, 10}, {230, 10}, {215, 10}, {208, 10}, {207, 10}, {206, 10}, |
|
{214, 10}, {204, 10}, {223, 10}, {224, 10}, {225, 10}, {226, 10}, {227, 10}, {228, 10}, |
|
{229, 10}, {213, 10}, {212, 10}, {231, 10}, {232, 10}, {211, 10}, {210, 10}, {236, 10}, |
|
{209, 10}, {216, 10}, {205, 10}, { 18, 10}, {186, 9 }, {186, 9 }, {185, 9 }, {185, 9 }, |
|
{184, 9 }, {184, 9 }, {182, 9 }, {182, 9 }, {183, 9 }, {183, 9 }, {180, 9 }, {180, 9 }, |
|
{181, 9 }, {181, 9 }, {178, 9 }, {178, 9 }, {187, 9 }, {187, 9 }, {176, 9 }, {176, 9 }, |
|
{188, 9 }, {188, 9 }, {179, 9 }, {179, 9 }, {173, 9 }, {173, 9 }, {172, 9 }, {172, 9 }, |
|
{171, 9 }, {171, 9 }, {170, 9 }, {170, 9 }, {169, 9 }, {169, 9 }, {189, 9 }, {189, 9 }, |
|
{190, 9 }, {190, 9 }, {191, 9 }, {191, 9 }, {192, 9 }, {192, 9 }, {193, 9 }, {193, 9 }, |
|
{194, 9 }, {194, 9 }, {195, 9 }, {195, 9 }, {196, 9 }, {196, 9 }, {197, 9 }, {197, 9 }, |
|
{198, 9 }, {198, 9 }, {200, 9 }, {200, 9 }, {201, 9 }, {201, 9 }, {202, 9 }, {202, 9 }, |
|
{203, 9 }, {203, 9 }, {199, 9 }, {199, 9 }, {177, 9 }, {177, 9 }, { 40, 9 }, { 40, 9 }, |
|
{ 39, 9 }, { 39, 9 }, { 38, 9 }, { 38, 9 }, { 37, 9 }, { 37, 9 }, { 36, 9 }, { 36, 9 }, |
|
{ 35, 9 }, { 35, 9 }, { 34, 9 }, { 34, 9 }, { 33, 9 }, { 33, 9 }, { 32, 9 }, { 32, 9 }, |
|
{ 31, 9 }, { 31, 9 }, { 21, 9 }, { 21, 9 }, { 11, 9 }, { 11, 9 }, { 41, 9 }, { 41, 9 }, |
|
{ 45, 9 }, { 45, 9 }, { 44, 9 }, { 44, 9 }, { 42, 9 }, { 42, 9 }, { 43, 9 }, { 43, 9 }, |
|
{ 47, 9 }, { 47, 9 }, { 46, 9 }, { 46, 9 } |
|
}; |
|
|
|
/* intra mean value, codes 00000000000001 ... 00000011001xxx */ |
|
static vlc_code_t svq1_intra_mean_table_2[207] = { |
|
{255, 14}, { 14, 14}, { 13, 14}, { 17, 12}, { 17, 12}, { 17, 12}, { 17, 12}, |
|
{243, 11}, {243, 11}, {243, 11}, {243, 11}, {243, 11}, {243, 11}, {243, 11}, {243, 11}, |
|
{242, 11}, {242, 11}, {242, 11}, {242, 11}, {242, 11}, {242, 11}, {242, 11}, {242, 11}, |
|
{241, 11}, {241, 11}, {241, 11}, {241, 11}, {241, 11}, {241, 11}, {241, 11}, {241, 11}, |
|
{240, 11}, {240, 11}, {240, 11}, {240, 11}, {240, 11}, {240, 11}, {240, 11}, {240, 11}, |
|
{237, 11}, {237, 11}, {237, 11}, {237, 11}, {237, 11}, {237, 11}, {237, 11}, {237, 11}, |
|
{239, 11}, {239, 11}, {239, 11}, {239, 11}, {239, 11}, {239, 11}, {239, 11}, {239, 11}, |
|
{235, 11}, {235, 11}, {235, 11}, {235, 11}, {235, 11}, {235, 11}, {235, 11}, {235, 11}, |
|
{234, 11}, {234, 11}, {234, 11}, {234, 11}, {234, 11}, {234, 11}, {234, 11}, {234, 11}, |
|
{233, 11}, {233, 11}, {233, 11}, {233, 11}, {233, 11}, {233, 11}, {233, 11}, {233, 11}, |
|
{244, 11}, {244, 11}, {244, 11}, {244, 11}, {244, 11}, {244, 11}, {244, 11}, {244, 11}, |
|
{238, 11}, {238, 11}, {238, 11}, {238, 11}, {238, 11}, {238, 11}, {238, 11}, {238, 11}, |
|
{ 20, 11}, { 20, 11}, { 20, 11}, { 20, 11}, { 20, 11}, { 20, 11}, { 20, 11}, { 20, 11}, |
|
{248, 11}, {248, 11}, {248, 11}, {248, 11}, {248, 11}, {248, 11}, {248, 11}, {248, 11}, |
|
{249, 11}, {249, 11}, {249, 11}, {249, 11}, {249, 11}, {249, 11}, {249, 11}, {249, 11}, |
|
{250, 11}, {250, 11}, {250, 11}, {250, 11}, {250, 11}, {250, 11}, {250, 11}, {250, 11}, |
|
{251, 11}, {251, 11}, {251, 11}, {251, 11}, {251, 11}, {251, 11}, {251, 11}, {251, 11}, |
|
{252, 11}, {252, 11}, {252, 11}, {252, 11}, {252, 11}, {252, 11}, {252, 11}, {252, 11}, |
|
{253, 11}, {253, 11}, {253, 11}, {253, 11}, {253, 11}, {253, 11}, {253, 11}, {253, 11}, |
|
{254, 11}, {254, 11}, {254, 11}, {254, 11}, {254, 11}, {254, 11}, {254, 11}, {254, 11}, |
|
{ 12, 11}, { 12, 11}, { 12, 11}, { 12, 11}, { 12, 11}, { 12, 11}, { 12, 11}, { 12, 11}, |
|
{ 10, 11}, { 10, 11}, { 10, 11}, { 10, 11}, { 10, 11}, { 10, 11}, { 10, 11}, { 10, 11}, |
|
{245, 11}, {245, 11}, {245, 11}, {245, 11}, {245, 11}, {245, 11}, {245, 11}, {245, 11}, |
|
{247, 11}, {247, 11}, {247, 11}, {247, 11}, {247, 11}, {247, 11}, {247, 11}, {247, 11}, |
|
{ 19, 11}, { 19, 11}, { 19, 11}, { 19, 11}, { 19, 11}, { 19, 11}, { 19, 11}, { 19, 11}, |
|
{246, 11}, {246, 11}, {246, 11}, {246, 11}, {246, 11}, {246, 11}, {246, 11}, {246, 11} |
|
}; |
|
|
|
/* intra mean value, codes 00000000000000000000 ... 000000000000001xxxxx */ |
|
static vlc_code_t svq1_intra_mean_table_3[64] = { |
|
{ 6, 20}, { 3, 20}, { 4, 20}, { 5, 20}, { 7, 20}, { 8, 20}, { 9, 19}, { 9, 19}, |
|
{ 2, 17}, { 2, 17}, { 2, 17}, { 2, 17}, { 2, 17}, { 2, 17}, { 2, 17}, { 2, 17}, |
|
{ 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, |
|
{ 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, |
|
{ 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, |
|
{ 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, |
|
{ 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, |
|
{ 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15} |
|
}; |
|
|
|
/* inter mean value, codes 00001011 ... 1xxxxxxx */ |
|
static vlc_code_t svq1_inter_mean_table_0[245] = { |
|
{ 10, 8 }, { 12, 8 }, { 11, 8 }, {-11, 8 }, {-12, 8 }, |
|
{-10, 8 }, { -9, 8 }, { -7, 7 }, { -7, 7 }, { -6, 7 }, { -6, 7 }, { 8, 7 }, { 8, 7 }, |
|
{ -8, 7 }, { -8, 7 }, { 9, 7 }, { 9, 7 }, { 6, 7 }, { 6, 7 }, { 7, 7 }, { 7, 7 }, |
|
{ -5, 6 }, { -5, 6 }, { -5, 6 }, { -5, 6 }, { -4, 6 }, { -4, 6 }, { -4, 6 }, { -4, 6 }, |
|
{ 5, 6 }, { 5, 6 }, { 5, 6 }, { 5, 6 }, { 4, 6 }, { 4, 6 }, { 4, 6 }, { 4, 6 }, |
|
{ 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, |
|
{ 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, |
|
{ -2, 5 }, { -2, 5 }, { -2, 5 }, { -2, 5 }, { -2, 5 }, { -2, 5 }, { -2, 5 }, { -2, 5 }, |
|
{ -3, 5 }, { -3, 5 }, { -3, 5 }, { -3, 5 }, { -3, 5 }, { -3, 5 }, { -3, 5 }, { -3, 5 }, |
|
{ -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, |
|
{ -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, |
|
{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
|
{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
|
{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
|
{ 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, |
|
{ 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } |
|
}; |
|
|
|
/* inter mean value, codes 000000010010 ... 00001011xxxx */ |
|
static vlc_code_t svq1_inter_mean_table_1[158] = { |
|
{-30, 12}, {-31, 12}, {-32, 12}, {-33, 12}, { 31, 12}, {-34, 12}, |
|
{-35, 12}, { 29, 12}, { 30, 12}, { 33, 12}, { 34, 12}, { 32, 12}, {-29, 11}, {-29, 11}, |
|
{-28, 11}, {-28, 11}, { 28, 11}, { 28, 11}, {-27, 11}, {-27, 11}, {-26, 11}, {-26, 11}, |
|
{ 27, 11}, { 27, 11}, { 26, 11}, { 26, 11}, { 25, 11}, { 25, 11}, { 24, 11}, { 24, 11}, |
|
{ 23, 11}, { 23, 11}, { 22, 11}, { 22, 11}, {-24, 11}, {-24, 11}, {-25, 11}, {-25, 11}, |
|
{-23, 10}, {-23, 10}, {-23, 10}, {-23, 10}, {-21, 10}, {-21, 10}, {-21, 10}, {-21, 10}, |
|
{-20, 10}, {-20, 10}, {-20, 10}, {-20, 10}, {-19, 10}, {-19, 10}, {-19, 10}, {-19, 10}, |
|
{-18, 10}, {-18, 10}, {-18, 10}, {-18, 10}, {-22, 10}, {-22, 10}, {-22, 10}, {-22, 10}, |
|
{ 19, 10}, { 19, 10}, { 19, 10}, { 19, 10}, { 21, 10}, { 21, 10}, { 21, 10}, { 21, 10}, |
|
{ 20, 10}, { 20, 10}, { 20, 10}, { 20, 10}, { 18, 10}, { 18, 10}, { 18, 10}, { 18, 10}, |
|
{-14, 9 }, {-14, 9 }, {-14, 9 }, {-14, 9 }, {-14, 9 }, {-14, 9 }, {-14, 9 }, {-14, 9 }, |
|
{-17, 9 }, {-17, 9 }, {-17, 9 }, {-17, 9 }, {-17, 9 }, {-17, 9 }, {-17, 9 }, {-17, 9 }, |
|
{ 16, 9 }, { 16, 9 }, { 16, 9 }, { 16, 9 }, { 16, 9 }, { 16, 9 }, { 16, 9 }, { 16, 9 }, |
|
{ 13, 9 }, { 13, 9 }, { 13, 9 }, { 13, 9 }, { 13, 9 }, { 13, 9 }, { 13, 9 }, { 13, 9 }, |
|
{ 14, 9 }, { 14, 9 }, { 14, 9 }, { 14, 9 }, { 14, 9 }, { 14, 9 }, { 14, 9 }, { 14, 9 }, |
|
{ 15, 9 }, { 15, 9 }, { 15, 9 }, { 15, 9 }, { 15, 9 }, { 15, 9 }, { 15, 9 }, { 15, 9 }, |
|
{ 17, 9 }, { 17, 9 }, { 17, 9 }, { 17, 9 }, { 17, 9 }, { 17, 9 }, { 17, 9 }, { 17, 9 }, |
|
{-13, 9 }, {-13, 9 }, {-13, 9 }, {-13, 9 }, {-13, 9 }, {-13, 9 }, {-13, 9 }, {-13, 9 }, |
|
{-16, 9 }, {-16, 9 }, {-16, 9 }, {-16, 9 }, {-16, 9 }, {-16, 9 }, {-16, 9 }, {-16, 9 }, |
|
{-15, 9 }, {-15, 9 }, {-15, 9 }, {-15, 9 }, {-15, 9 }, {-15, 9 }, {-15, 9 }, {-15, 9 } |
|
}; |
|
|
|
/* inter mean value, codes 000000000010111 ... 0000000100011xx */ |
|
static vlc_code_t svq1_inter_mean_table_2[121] = { |
|
{ 61, 15}, |
|
{ 52, 15}, { 58, 15}, {-56, 15}, {-57, 15}, { 59, 15}, {-55, 15}, { 60, 15}, {-54, 15}, |
|
{ 53, 15}, {-62, 15}, {-60, 15}, {-59, 15}, {-58, 15}, { 57, 15}, { 56, 15}, {-53, 15}, |
|
{ 55, 15}, { 54, 15}, { 50, 14}, { 50, 14}, { 45, 14}, { 45, 14}, {-52, 14}, {-52, 14}, |
|
{-51, 14}, {-51, 14}, {-50, 14}, {-50, 14}, { 46, 14}, { 46, 14}, {-49, 14}, {-49, 14}, |
|
{-48, 14}, {-48, 14}, { 48, 14}, { 48, 14}, {-47, 14}, {-47, 14}, { 49, 14}, { 49, 14}, |
|
{-45, 14}, {-45, 14}, {-44, 14}, {-44, 14}, { 47, 14}, { 47, 14}, { 51, 14}, { 51, 14}, |
|
{ 44, 14}, { 44, 14}, {-46, 14}, {-46, 14}, {-43, 13}, {-43, 13}, {-43, 13}, {-43, 13}, |
|
{-42, 13}, {-42, 13}, {-42, 13}, {-42, 13}, {-41, 13}, {-41, 13}, {-41, 13}, {-41, 13}, |
|
{-40, 13}, {-40, 13}, {-40, 13}, {-40, 13}, {-39, 13}, {-39, 13}, {-39, 13}, {-39, 13}, |
|
{-38, 13}, {-38, 13}, {-38, 13}, {-38, 13}, {-37, 13}, {-37, 13}, {-37, 13}, {-37, 13}, |
|
{-36, 13}, {-36, 13}, {-36, 13}, {-36, 13}, { 42, 13}, { 42, 13}, { 42, 13}, { 42, 13}, |
|
{ 36, 13}, { 36, 13}, { 36, 13}, { 36, 13}, { 43, 13}, { 43, 13}, { 43, 13}, { 43, 13}, |
|
{ 41, 13}, { 41, 13}, { 41, 13}, { 41, 13}, { 40, 13}, { 40, 13}, { 40, 13}, { 40, 13}, |
|
{ 35, 13}, { 35, 13}, { 35, 13}, { 35, 13}, { 39, 13}, { 39, 13}, { 39, 13}, { 39, 13}, |
|
{ 38, 13}, { 38, 13}, { 38, 13}, { 38, 13}, { 37, 13}, { 37, 13}, { 37, 13}, { 37, 13} |
|
}; |
|
|
|
/* inter mean value, codes 000000000000100101 ... 0000000000101101xx */ |
|
static vlc_code_t svq1_inter_mean_table_3[147] = { |
|
{111, 18}, {102, 18}, { 99, 18}, |
|
{-86, 18}, { 97, 18}, {-97, 18}, { 96, 18}, {-95, 18}, {-76, 18}, {-77, 18}, {-78, 18}, |
|
{-85, 18}, {-80, 18}, {-81, 18}, { 89, 18}, { 90, 18}, {-84, 18}, {-89, 18}, { 80, 18}, |
|
{-90, 18}, {-88, 18}, { 92, 18}, { 93, 18}, { 95, 18}, {-109,18}, {-79, 17}, {-79, 17}, |
|
{-83, 17}, {-83, 17}, {-75, 17}, {-75, 17}, {-74, 17}, {-74, 17}, {-73, 17}, {-73, 17}, |
|
{-72, 17}, {-72, 17}, { 87, 17}, { 87, 17}, { 86, 17}, { 86, 17}, { 75, 17}, { 75, 17}, |
|
{ 85, 17}, { 85, 17}, { 84, 17}, { 84, 17}, { 81, 17}, { 81, 17}, { 79, 17}, { 79, 17}, |
|
{ 74, 17}, { 74, 17}, { 72, 17}, { 72, 17}, { 82, 17}, { 82, 17}, { 78, 17}, { 78, 17}, |
|
{ 83, 17}, { 83, 17}, { 76, 17}, { 76, 17}, { 73, 17}, { 73, 17}, { 77, 17}, { 77, 17}, |
|
{ 70, 16}, { 70, 16}, { 70, 16}, { 70, 16}, { 69, 16}, { 69, 16}, { 69, 16}, { 69, 16}, |
|
{ 64, 16}, { 64, 16}, { 64, 16}, { 64, 16}, {-68, 16}, {-68, 16}, {-68, 16}, {-68, 16}, |
|
{-66, 16}, {-66, 16}, {-66, 16}, {-66, 16}, { 68, 16}, { 68, 16}, { 68, 16}, { 68, 16}, |
|
{-69, 16}, {-69, 16}, {-69, 16}, {-69, 16}, { 65, 16}, { 65, 16}, { 65, 16}, { 65, 16}, |
|
{ 71, 16}, { 71, 16}, { 71, 16}, { 71, 16}, {-70, 16}, {-70, 16}, {-70, 16}, {-70, 16}, |
|
{-65, 16}, {-65, 16}, {-65, 16}, {-65, 16}, {-67, 16}, {-67, 16}, {-67, 16}, {-67, 16}, |
|
{-63, 16}, {-63, 16}, {-63, 16}, {-63, 16}, {-71, 16}, {-71, 16}, {-71, 16}, {-71, 16}, |
|
{ 67, 16}, { 67, 16}, { 67, 16}, { 67, 16}, {-61, 16}, {-61, 16}, {-61, 16}, {-61, 16}, |
|
{-64, 16}, {-64, 16}, {-64, 16}, {-64, 16}, { 63, 16}, { 63, 16}, { 63, 16}, { 63, 16}, |
|
{ 62, 16}, { 62, 16}, { 62, 16}, { 62, 16}, { 66, 16}, { 66, 16}, { 66, 16}, { 66, 16} |
|
}; |
|
|
|
/* inter mean value, codes 00000000000001001001 ... 0000000000001001001x */ |
|
static vlc_code_t svq1_inter_mean_table_4[75] = { |
|
{142, 20}, {135, 20}, {125, 20}, {123, 20}, {122, 20}, {119, 20}, {117, 20}, |
|
{113, 20}, {104, 20}, {103, 20}, {-120,20}, {-114,20}, {-108,20}, {-104,20}, {-102,20}, |
|
{-101,20}, {-93, 20}, {-91, 19}, {-91, 19}, {-96, 19}, {-96, 19}, { 88, 19}, { 88, 19}, |
|
{ 91, 19}, { 91, 19}, { 94, 19}, { 94, 19}, {121, 19}, {121, 19}, {120, 19}, {120, 19}, |
|
{-110,19}, {-110,19}, {118, 19}, {118, 19}, {115, 19}, {115, 19}, {114, 19}, {114, 19}, |
|
{112, 19}, {112, 19}, {107, 19}, {107, 19}, {110, 19}, {110, 19}, {109, 19}, {109, 19}, |
|
{108, 19}, {108, 19}, {-103,19}, {-103,19}, {106, 19}, {106, 19}, {105, 19}, {105, 19}, |
|
{-100,19}, {-100,19}, {101, 19}, {101, 19}, {100, 19}, {100, 19}, {-99, 19}, {-99, 19}, |
|
{-82, 19}, {-82, 19}, {-87, 19}, {-87, 19}, {-94, 19}, {-94, 19}, {-98, 19}, {-98, 19}, |
|
{ 98, 19}, { 98, 19}, {-92, 19}, {-92, 19} |
|
}; |
|
|
|
/* inter mean value, codes 0000000000000000000000 ... 000000000000010010001x */ |
|
static vlc_code_t svq1_inter_mean_table_5[292] = { |
|
{255, 22}, {254, 22}, {253, 22}, {252, 22}, {251, 22}, {250, 22}, {249, 22}, {248, 22}, |
|
{247, 22}, {246, 22}, {245, 22}, {244, 22}, {243, 22}, {242, 22}, {241, 22}, {240, 22}, |
|
{239, 22}, {238, 22}, {237, 22}, {236, 22}, {235, 22}, {234, 22}, {233, 22}, {232, 22}, |
|
{231, 22}, {230, 22}, {229, 22}, {228, 22}, {227, 22}, {226, 22}, {225, 22}, {224, 22}, |
|
{223, 22}, {222, 22}, {221, 22}, {220, 22}, {219, 22}, {218, 22}, {217, 22}, {216, 22}, |
|
{215, 22}, {214, 22}, {213, 22}, {212, 22}, {211, 22}, {210, 22}, {209, 22}, {208, 22}, |
|
{207, 22}, {206, 22}, {205, 22}, {204, 22}, {203, 22}, {202, 22}, {201, 22}, {200, 22}, |
|
{199, 22}, {198, 22}, {197, 22}, {196, 22}, {195, 22}, {194, 22}, {193, 22}, {192, 22}, |
|
{191, 22}, {190, 22}, {189, 22}, {188, 22}, {187, 22}, {186, 22}, {185, 22}, {184, 22}, |
|
{183, 22}, {182, 22}, {181, 22}, {180, 22}, {179, 22}, {178, 22}, {177, 22}, {176, 22}, |
|
{175, 22}, {174, 22}, {173, 22}, {172, 22}, {171, 22}, {170, 22}, {169, 22}, {168, 22}, |
|
{167, 22}, {166, 22}, {-256,22}, {164, 22}, {-211,22}, {162, 22}, {161, 22}, {160, 22}, |
|
{-210,22}, {-168,22}, {157, 22}, {156, 22}, {155, 22}, {154, 22}, {153, 22}, {152, 22}, |
|
{151, 22}, {150, 22}, {149, 22}, {148, 22}, {147, 22}, {146, 22}, {145, 22}, {144, 22}, |
|
{143, 22}, {-208,22}, {141, 22}, {140, 22}, {139, 22}, {-200,22}, {137, 22}, {136, 22}, |
|
{-198,22}, {134, 22}, {133, 22}, {-196,22}, {-201,22}, {130, 22}, {129, 22}, {128, 22}, |
|
{127, 22}, {126, 22}, {-195,22}, {124, 22}, {-167,22}, {-166,22}, {-165,22}, {-164,22}, |
|
{-163,22}, {-162,22}, {-161,22}, {-180,22}, {-160,22}, {-159,22}, {-158,22}, {-157,22}, |
|
{-156,22}, {-155,22}, {-154,22}, {-153,22}, {-152,22}, {-151,22}, {-150,22}, {-149,22}, |
|
{-148,22}, {-147,22}, {-146,22}, {-145,22}, {-144,22}, {-143,22}, {-142,22}, {-141,22}, |
|
{-140,22}, {-139,22}, {-138,22}, {-137,22}, {-136,22}, {-135,22}, {-134,22}, {-133,22}, |
|
{-132,22}, {-131,22}, {-130,22}, {-129,22}, {-126,22}, {-125,22}, {-124,22}, {-123,22}, |
|
{-122,22}, {-121,22}, {-118,22}, {-116,22}, {-115,22}, {-113,22}, {-112,22}, {-107,22}, |
|
{-106,22}, {-169,22}, {-170,22}, {-171,22}, {-172,22}, {-173,22}, {-174,22}, {-175,22}, |
|
{-176,22}, {-177,22}, {-178,22}, {-187,22}, {-179,22}, {-181,22}, {-182,22}, {-183,22}, |
|
{-184,22}, {-185,22}, {-186,22}, {-235,22}, {-188,22}, {-189,22}, {-190,22}, {-191,22}, |
|
{-192,22}, {-193,22}, {-194,22}, {-197,22}, {-255,22}, {-254,22}, {-253,22}, {-252,22}, |
|
{-251,22}, {-250,22}, {-249,22}, {-248,22}, {-247,22}, {-246,22}, {-245,22}, {-244,22}, |
|
{-243,22}, {-242,22}, {-241,22}, {-240,22}, {-239,22}, {-238,22}, {-237,22}, {-232,22}, |
|
{-236,22}, {-234,22}, {-233,22}, {-217,22}, {-231,22}, {-230,22}, {-229,22}, {-228,22}, |
|
{-227,22}, {-226,22}, {-225,22}, {-224,22}, {-223,22}, {-222,22}, {-221,22}, {-220,22}, |
|
{-219,22}, {-216,22}, {-202,22}, {-205,22}, {-215,22}, {-214,22}, {-213,22}, {-204,22}, |
|
{-212,22}, {-209,22}, {-218,22}, {-199,22}, {-207,22}, {-206,22}, {165, 21}, {165, 21}, |
|
{131, 21}, {131, 21}, {163, 21}, {163, 21}, {-203,21}, {-203,21}, {116, 21}, {116, 21}, |
|
{159, 21}, {159, 21}, {138, 21}, {138, 21}, {158, 21}, {158, 21}, {-105,21}, {-105,21}, |
|
{-111,21}, {-111,21}, {132, 21}, {132, 21}, {128, 21}, {128, 21}, {-127,21}, {-127,21}, |
|
{-119,21}, {-119,21}, {-117,21}, {-117,21} |
|
}; |
|
|
|
#define SVQ1_PROCESS_VECTOR()\ |
|
for (; level > 0; i++) {\ |
|
/* process next depth */\ |
|
if (i == m) {\ |
|
m = n;\ |
|
if (--level == 0)\ |
|
break;\ |
|
}\ |
|
/* divide block if next bit set */\ |
|
if (get_bits (bitbuf, 1) == 0)\ |
|
break;\ |
|
/* add child nodes */\ |
|
list[n++] = list[i];\ |
|
list[n++] = list[i] + (((level & 1) ? pitch : 1) << ((level / 2) + 1));\ |
|
} |
|
|
|
#define SVQ1_ADD_CODEBOOK()\ |
|
/* add codebook entries to vector */\ |
|
for (j=0; j < stages; j++) {\ |
|
n3 = codebook[entries[j]] ^ 0x80808080;\ |
|
n1 += ((n3 & 0xFF00FF00) >> 8);\ |
|
n2 += (n3 & 0x00FF00FF);\ |
|
}\ |
|
\ |
|
/* clip to [0..255] */\ |
|
if (n1 & 0xFF00FF00) {\ |
|
n3 = ((( n1 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\ |
|
n1 += 0x7F007F00;\ |
|
n1 |= (((~n1 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\ |
|
n1 &= (n3 & 0x00FF00FF);\ |
|
}\ |
|
\ |
|
if (n2 & 0xFF00FF00) {\ |
|
n3 = ((( n2 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\ |
|
n2 += 0x7F007F00;\ |
|
n2 |= (((~n2 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\ |
|
n2 &= (n3 & 0x00FF00FF);\ |
|
} |
|
|
|
#define SVQ1_DO_CODEBOOK_INTRA()\ |
|
for (y=0; y < height; y++) {\ |
|
for (x=0; x < (width / 4); x++, codebook++) {\ |
|
n1 = n4;\ |
|
n2 = n4;\ |
|
SVQ1_ADD_CODEBOOK()\ |
|
/* store result */\ |
|
dst[x] = (n1 << 8) | n2;\ |
|
}\ |
|
dst += (pitch / 4);\ |
|
} |
|
|
|
#define SVQ1_DO_CODEBOOK_NONINTRA()\ |
|
for (y=0; y < height; y++) {\ |
|
for (x=0; x < (width / 4); x++, codebook++) {\ |
|
n3 = dst[x];\ |
|
/* add mean value to vector */\ |
|
n1 = ((n3 & 0xFF00FF00) >> 8) + n4;\ |
|
n2 = (n3 & 0x00FF00FF) + n4;\ |
|
SVQ1_ADD_CODEBOOK()\ |
|
/* store result */\ |
|
dst[x] = (n1 << 8) | n2;\ |
|
}\ |
|
dst += (pitch / 4);\ |
|
} |
|
|
|
#define SVQ1_CALC_CODEBOOK_ENTRIES(cbook)\ |
|
codebook = (uint32_t *) cbook[level];\ |
|
bit_cache = get_bits (bitbuf, 4*stages);\ |
|
/* calculate codebook entries for this vector */\ |
|
for (j=0; j < stages; j++) {\ |
|
entries[j] = (((bit_cache >> (4*(stages - j - 1))) & 0xF) + 16*j) << (level + 1);\ |
|
}\ |
|
mean -= (stages * 128);\ |
|
n4 = ((mean + (mean >> 31)) << 16) | (mean & 0xFFFF); |
|
|
|
static int svq1_decode_block_intra (bit_buffer_t *bitbuf, uint8_t *pixels, int pitch ) { |
|
uint32_t bit_cache; |
|
vlc_code_t *vlc; |
|
uint8_t *list[63]; |
|
uint32_t *dst; |
|
uint32_t *codebook; |
|
int entries[6]; |
|
int i, j, m, n; |
|
int mean, stages; |
|
int x, y, width, height, level; |
|
uint32_t n1, n2, n3, n4; |
|
|
|
/* initialize list for breadth first processing of vectors */ |
|
list[0] = pixels; |
|
|
|
/* recursively process vector */ |
|
for (i=0, m=1, n=1, level=5; i < n; i++) { |
|
SVQ1_PROCESS_VECTOR(); |
|
|
|
/* destination address and vector size */ |
|
dst = (uint32_t *) list[i]; |
|
width = 1 << ((4 + level) /2); |
|
height = 1 << ((3 + level) /2); |
|
|
|
/* get number of stages (-1 skips vector, 0 for mean only) */ |
|
bit_cache = get_bit_cache (bitbuf); |
|
|
|
vlc = &svq1_intra_vector_tables[level][bit_cache >> (32 - 7)]; |
|
|
|
/* flush bits */ |
|
stages = vlc->value; |
|
skip_bits(bitbuf,vlc->length); |
|
|
|
if (stages == -1) { |
|
for (y=0; y < height; y++) { |
|
memset (&dst[y*(pitch / 4)], 0, width); |
|
} |
|
continue; /* skip vector */ |
|
} |
|
|
|
if ((stages > 0) && (level >= 4)) { |
|
#ifdef DEBUG_SVQ1 |
|
printf("Error (svq1_decode_block_intra): invalid vector: stages=%i level=%i\n",stages,level); |
|
#endif |
|
return -1; /* invalid vector */ |
|
} |
|
|
|
/* get mean value for vector */ |
|
bit_cache = get_bit_cache (bitbuf); |
|
|
|
if (bit_cache >= 0x25000000) |
|
vlc = &svq1_intra_mean_table_0[(bit_cache >> (32 - 8)) - 37]; |
|
else if (bit_cache >= 0x03400000) |
|
vlc = &svq1_intra_mean_table_1[(bit_cache >> (32 - 10)) - 13]; |
|
else if (bit_cache >= 0x00040000) |
|
vlc = &svq1_intra_mean_table_2[(bit_cache >> (32 - 14)) - 1]; |
|
else |
|
vlc = &svq1_intra_mean_table_3[bit_cache >> (32 - 20)]; |
|
|
|
/* flush bits */ |
|
mean = vlc->value; |
|
skip_bits(bitbuf,vlc->length); |
|
|
|
if (stages == 0) { |
|
for (y=0; y < height; y++) { |
|
memset (&dst[y*(pitch / 4)], mean, width); |
|
} |
|
} else { |
|
SVQ1_CALC_CODEBOOK_ENTRIES(svq1_intra_codebooks); |
|
SVQ1_DO_CODEBOOK_INTRA() |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int svq1_decode_block_non_intra (bit_buffer_t *bitbuf, uint8_t *pixels, int pitch ) { |
|
uint32_t bit_cache; |
|
vlc_code_t *vlc; |
|
uint8_t *list[63]; |
|
uint32_t *dst; |
|
uint32_t *codebook; |
|
int entries[6]; |
|
int i, j, m, n; |
|
int mean, stages; |
|
int x, y, width, height, level; |
|
uint32_t n1, n2, n3, n4; |
|
|
|
/* initialize list for breadth first processing of vectors */ |
|
list[0] = pixels; |
|
|
|
/* recursively process vector */ |
|
for (i=0, m=1, n=1, level=5; i < n; i++) { |
|
SVQ1_PROCESS_VECTOR(); |
|
|
|
/* destination address and vector size */ |
|
dst = (uint32_t *) list[i]; |
|
width = 1 << ((4 + level) /2); |
|
height = 1 << ((3 + level) /2); |
|
|
|
/* get number of stages (-1 skips vector, 0 for mean only) */ |
|
bit_cache = get_bit_cache (bitbuf); |
|
|
|
vlc = &svq1_inter_vector_tables[level][bit_cache >> (32 - 6)]; |
|
|
|
/* flush bits */ |
|
stages = vlc->value; |
|
skip_bits(bitbuf,vlc->length); |
|
|
|
if (stages == -1) continue; /* skip vector */ |
|
|
|
if ((stages > 0) && (level >= 4)) { |
|
#ifdef DEBUG_SVQ1 |
|
printf("Error (svq1_decode_block_non_intra): invalid vector: stages=%i level=%i\n",stages,level); |
|
#endif |
|
return -1; /* invalid vector */ |
|
} |
|
|
|
/* get mean value for vector */ |
|
bit_cache = get_bit_cache (bitbuf); |
|
|
|
if (bit_cache >= 0x0B000000) |
|
vlc = &svq1_inter_mean_table_0[(bit_cache >> (32 - 8)) - 11]; |
|
else if (bit_cache >= 0x01200000) |
|
vlc = &svq1_inter_mean_table_1[(bit_cache >> (32 - 12)) - 18]; |
|
else if (bit_cache >= 0x002E0000) |
|
vlc = &svq1_inter_mean_table_2[(bit_cache >> (32 - 15)) - 23]; |
|
else if (bit_cache >= 0x00094000) |
|
vlc = &svq1_inter_mean_table_3[(bit_cache >> (32 - 18)) - 37]; |
|
else if (bit_cache >= 0x00049000) |
|
vlc = &svq1_inter_mean_table_4[(bit_cache >> (32 - 20)) - 73]; |
|
else |
|
vlc = &svq1_inter_mean_table_5[bit_cache >> (32 - 22)]; |
|
|
|
/* flush bits */ |
|
mean = vlc->value; |
|
skip_bits(bitbuf,vlc->length); |
|
|
|
SVQ1_CALC_CODEBOOK_ENTRIES(svq1_inter_codebooks); |
|
SVQ1_DO_CODEBOOK_NONINTRA() |
|
} |
|
return 0; |
|
} |
|
|
|
static int svq1_decode_motion_vector (bit_buffer_t *bitbuf, svq1_pmv_t *mv, svq1_pmv_t **pmv) { |
|
uint32_t bit_cache; |
|
vlc_code_t *vlc; |
|
int diff, sign; |
|
int i; |
|
|
|
for (i=0; i < 2; i++) { |
|
|
|
/* get motion code */ |
|
bit_cache = get_bit_cache (bitbuf); |
|
|
|
if (!(bit_cache & 0xFFE00000)) |
|
return -1; /* invalid vlc code */ |
|
|
|
if (bit_cache & 0x80000000) { |
|
diff = 0; |
|
|
|
/* flush bit */ |
|
skip_bits(bitbuf,1); |
|
|
|
} else { |
|
if (bit_cache >= 0x06000000) { |
|
vlc = &svq1_motion_table_0[(bit_cache >> (32 - 7)) - 3]; |
|
} else { |
|
vlc = &svq1_motion_table_1[(bit_cache >> (32 - 12)) - 2]; |
|
} |
|
|
|
/* decode motion vector differential */ |
|
sign = (int) (bit_cache << (vlc->length - 1)) >> 31; |
|
diff = (vlc->value ^ sign) - sign; |
|
|
|
/* flush bits */ |
|
skip_bits(bitbuf,vlc->length); |
|
} |
|
|
|
/* add median of motion vector predictors and clip result */ |
|
if (i == 1) |
|
mv->y = ((diff + MEDIAN(pmv[0]->y, pmv[1]->y, pmv[2]->y)) << 26) >> 26; |
|
else |
|
mv->x = ((diff + MEDIAN(pmv[0]->x, pmv[1]->x, pmv[2]->x)) << 26) >> 26; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void svq1_skip_block (uint8_t *current, uint8_t *previous, int pitch, int x, int y) { |
|
uint8_t *src; |
|
uint8_t *dst; |
|
int i; |
|
|
|
src = &previous[x + y*pitch]; |
|
dst = current; |
|
|
|
for (i=0; i < 16; i++) { |
|
memcpy (dst, src, 16); |
|
src += pitch; |
|
dst += pitch; |
|
} |
|
} |
|
|
|
static int svq1_motion_inter_block (bit_buffer_t *bitbuf, |
|
uint8_t *current, uint8_t *previous, int pitch, |
|
svq1_pmv_t *motion, int x, int y) { |
|
uint8_t *src; |
|
uint8_t *dst; |
|
svq1_pmv_t mv; |
|
svq1_pmv_t *pmv[3]; |
|
int result; |
|
|
|
/* predict and decode motion vector */ |
|
pmv[0] = &motion[0]; |
|
if (y == 0) { |
|
pmv[1] = |
|
pmv[2] = pmv[0]; |
|
} |
|
else { |
|
pmv[1] = &motion[(x / 8) + 2]; |
|
pmv[2] = &motion[(x / 8) + 4]; |
|
} |
|
|
|
result = svq1_decode_motion_vector (bitbuf, &mv, pmv); |
|
|
|
if (result != 0) |
|
return result; |
|
|
|
motion[0].x = |
|
motion[(x / 8) + 2].x = |
|
motion[(x / 8) + 3].x = mv.x; |
|
motion[0].y = |
|
motion[(x / 8) + 2].y = |
|
motion[(x / 8) + 3].y = mv.y; |
|
|
|
src = &previous[(x + (mv.x >> 1)) + (y + (mv.y >> 1))*pitch]; |
|
dst = current; |
|
|
|
put_pixels_tab[((mv.y & 1) << 1) | (mv.x & 1)](dst,src,pitch,16); |
|
put_pixels_tab[((mv.y & 1) << 1) | (mv.x & 1)](dst+8,src+8,pitch,16); |
|
|
|
return 0; |
|
} |
|
|
|
static int svq1_motion_inter_4v_block (bit_buffer_t *bitbuf, |
|
uint8_t *current, uint8_t *previous, int pitch, |
|
svq1_pmv_t *motion,int x, int y) { |
|
uint8_t *src; |
|
uint8_t *dst; |
|
svq1_pmv_t mv; |
|
svq1_pmv_t *pmv[4]; |
|
int i, result; |
|
|
|
/* predict and decode motion vector (0) */ |
|
pmv[0] = &motion[0]; |
|
if (y == 0) { |
|
pmv[1] = |
|
pmv[2] = pmv[0]; |
|
} |
|
else { |
|
pmv[1] = &motion[(x / 8) + 2]; |
|
pmv[2] = &motion[(x / 8) + 4]; |
|
} |
|
|
|
result = svq1_decode_motion_vector (bitbuf, &mv, pmv); |
|
|
|
if (result != 0) |
|
return result; |
|
|
|
/* predict and decode motion vector (1) */ |
|
pmv[0] = &mv; |
|
if (y == 0) { |
|
pmv[1] = |
|
pmv[2] = pmv[0]; |
|
} |
|
else { |
|
pmv[1] = &motion[(x / 8) + 3]; |
|
} |
|
result = svq1_decode_motion_vector (bitbuf, &motion[0], pmv); |
|
|
|
if (result != 0) |
|
return result; |
|
|
|
/* predict and decode motion vector (2) */ |
|
pmv[1] = &motion[0]; |
|
pmv[2] = &motion[(x / 8) + 1]; |
|
|
|
result = svq1_decode_motion_vector (bitbuf, &motion[(x / 8) + 2], pmv); |
|
|
|
if (result != 0) |
|
return result; |
|
|
|
/* predict and decode motion vector (3) */ |
|
pmv[2] = &motion[(x / 8) + 2]; |
|
pmv[3] = &motion[(x / 8) + 3]; |
|
|
|
result = svq1_decode_motion_vector (bitbuf, pmv[3], pmv); |
|
|
|
if (result != 0) |
|
return result; |
|
|
|
/* form predictions */ |
|
for (i=0; i < 4; i++) { |
|
src = &previous[(x + (pmv[i]->x >> 1)) + (y + (pmv[i]->y >> 1))*pitch]; |
|
dst = current; |
|
|
|
put_pixels_tab[((pmv[i]->y & 1) << 1) | (pmv[i]->x & 1)](dst,src,pitch,8); |
|
|
|
/* select next block */ |
|
if (i & 1) { |
|
current += 8*(pitch - 1); |
|
previous += 8*(pitch - 1); |
|
} else { |
|
current += 8; |
|
previous += 8; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int svq1_decode_delta_block (bit_buffer_t *bitbuf, |
|
uint8_t *current, uint8_t *previous, int pitch, |
|
svq1_pmv_t *motion, int x, int y) { |
|
uint32_t bit_cache; |
|
uint32_t block_type; |
|
int result = 0; |
|
|
|
/* get block type */ |
|
bit_cache = get_bit_cache (bitbuf); |
|
|
|
bit_cache >>= (32 - 3); |
|
block_type = svq1_block_type_table[bit_cache].value; |
|
skip_bits(bitbuf,svq1_block_type_table[bit_cache].length); |
|
|
|
/* reset motion vectors */ |
|
if (block_type == SVQ1_BLOCK_SKIP || block_type == SVQ1_BLOCK_INTRA) { |
|
motion[0].x = |
|
motion[0].y = |
|
motion[(x / 8) + 2].x = |
|
motion[(x / 8) + 2].y = |
|
motion[(x / 8) + 3].x = |
|
motion[(x / 8) + 3].y = 0; |
|
} |
|
|
|
switch (block_type) { |
|
case SVQ1_BLOCK_SKIP: |
|
svq1_skip_block (current, previous, pitch, x, y); |
|
break; |
|
|
|
case SVQ1_BLOCK_INTER: |
|
result = svq1_motion_inter_block (bitbuf, current, previous, pitch, motion, x, y); |
|
|
|
if (result != 0) |
|
{ |
|
#ifdef DEBUG_SVQ1 |
|
printf("Error in svq1_motion_inter_block %i\n",result); |
|
#endif |
|
break; |
|
} |
|
result = svq1_decode_block_non_intra (bitbuf, current, pitch); |
|
break; |
|
|
|
case SVQ1_BLOCK_INTER_4V: |
|
result = svq1_motion_inter_4v_block (bitbuf, current, previous, pitch, motion, x, y); |
|
|
|
if (result != 0) |
|
{ |
|
#ifdef DEBUG_SVQ1 |
|
printf("Error in svq1_motion_inter_4v_block %i\n",result); |
|
#endif |
|
break; |
|
} |
|
result = svq1_decode_block_non_intra (bitbuf, current, pitch); |
|
break; |
|
|
|
case SVQ1_BLOCK_INTRA: |
|
result = svq1_decode_block_intra (bitbuf, current, pitch); |
|
break; |
|
} |
|
|
|
return result; |
|
} |
|
|
|
/* standard video sizes */ |
|
static struct { int width; int height; } svq1_frame_size_table[8] = { |
|
{ 160, 120 }, { 128, 96 }, { 176, 144 }, { 352, 288 }, |
|
{ 704, 576 }, { 240, 180 }, { 320, 240 }, { -1, -1 } |
|
}; |
|
|
|
static int svq1_decode_frame_header (bit_buffer_t *bitbuf,MpegEncContext *s) { |
|
int frame_size_code; |
|
|
|
/* unknown field */ |
|
get_bits (bitbuf, 8); |
|
|
|
/* frame type */ |
|
s->pict_type= get_bits (bitbuf, 2)+1; |
|
if(s->pict_type==4) |
|
return -1; |
|
|
|
if (s->pict_type == I_TYPE) { |
|
|
|
/* unknown fields */ |
|
if (s->f_code == 0x50 || s->f_code == 0x60) { |
|
get_bits (bitbuf, 16); |
|
} |
|
|
|
if ((s->f_code ^ 0x10) >= 0x50) { |
|
skip_bits(bitbuf,8*get_bits (bitbuf, 8)); |
|
} |
|
|
|
get_bits (bitbuf, 2); |
|
get_bits (bitbuf, 2); |
|
get_bits (bitbuf, 1); |
|
|
|
/* load frame size */ |
|
frame_size_code = get_bits (bitbuf, 3); |
|
|
|
if (frame_size_code == 7) { |
|
/* load width, height (12 bits each) */ |
|
s->width = get_bits (bitbuf, 12); |
|
s->height = get_bits (bitbuf, 12); |
|
|
|
if (!s->width || !s->height) |
|
return -1; |
|
} else { |
|
/* get width, height from table */ |
|
s->width = svq1_frame_size_table[frame_size_code].width; |
|
s->height = svq1_frame_size_table[frame_size_code].height; |
|
} |
|
} |
|
|
|
/* unknown fields */ |
|
if (get_bits (bitbuf, 1) == 1) { |
|
get_bits (bitbuf, 1); |
|
get_bits (bitbuf, 1); |
|
|
|
if (get_bits (bitbuf, 2) != 0) |
|
return -1; |
|
} |
|
|
|
if (get_bits (bitbuf, 1) == 1) { |
|
get_bits (bitbuf, 1); |
|
get_bits (bitbuf, 4); |
|
get_bits (bitbuf, 1); |
|
get_bits (bitbuf, 2); |
|
|
|
while (get_bits (bitbuf, 1) == 1) { |
|
get_bits (bitbuf, 8); |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int svq1_decode_frame(AVCodecContext *avctx, |
|
void *data, int *data_size, |
|
UINT8 *buf, int buf_size) |
|
{ |
|
MpegEncContext *s=avctx->priv_data; |
|
uint8_t *current, *previous; |
|
int result, i, x, y, width, height; |
|
AVPicture *pict = data; |
|
|
|
/* initialize bit buffer */ |
|
init_get_bits(&s->gb,buf,buf_size); |
|
|
|
/* decode frame header */ |
|
s->f_code = get_bits (&s->gb, 22); |
|
|
|
if ((s->f_code & ~0x70) || !(s->f_code & 0x60)) |
|
return -1; |
|
|
|
/* swap some header bytes (why?) */ |
|
if (s->f_code != 0x20) { |
|
uint32_t *src = (uint32_t *) (buf + 4); |
|
|
|
for (i=0; i < 4; i++) { |
|
src[i] = ((src[i] << 16) | (src[i] >> 16)) ^ src[7 - i]; |
|
} |
|
} |
|
|
|
result = svq1_decode_frame_header (&s->gb, s); |
|
|
|
MPV_frame_start(s, avctx); |
|
|
|
if (result != 0) |
|
{ |
|
#ifdef DEBUG_SVQ1 |
|
printf("Error in svq1_decode_frame_header %i\n",result); |
|
#endif |
|
return result; |
|
} |
|
|
|
if(avctx->hurry_up && s->pict_type==B_TYPE) return buf_size; |
|
|
|
/* decode y, u and v components */ |
|
for (i=0; i < 3; i++) { |
|
int linesize; |
|
if (i == 0) { |
|
width = (s->width+15)&~15; |
|
height = (s->height+15)&~15; |
|
linesize= s->linesize; |
|
} else { |
|
if(s->flags&CODEC_FLAG_GRAY) break; |
|
width = (s->width/4+15)&~15; |
|
height = (s->height/4+15)&~15; |
|
linesize= s->uvlinesize; |
|
} |
|
|
|
current = s->current_picture[i]; |
|
|
|
if(s->pict_type==B_TYPE){ |
|
previous = s->next_picture[i]; |
|
}else{ |
|
previous = s->last_picture[i]; |
|
} |
|
|
|
if (s->pict_type == I_TYPE) { |
|
/* keyframe */ |
|
for (y=0; y < height; y+=16) { |
|
for (x=0; x < width; x+=16) { |
|
result = svq1_decode_block_intra (&s->gb, ¤t[x], linesize); |
|
if (result != 0) |
|
{ |
|
#ifdef DEBUG_SVQ1 |
|
printf("Error in svq1_decode_block %i (keyframe)\n",result); |
|
#endif |
|
return result; |
|
} |
|
} |
|
current += 16*linesize; |
|
} |
|
} else { |
|
svq1_pmv_t pmv[width/8+3]; |
|
/* delta frame */ |
|
memset (pmv, 0, ((width / 8) + 3) * sizeof(svq1_pmv_t)); |
|
|
|
for (y=0; y < height; y+=16) { |
|
for (x=0; x < width; x+=16) { |
|
result = svq1_decode_delta_block (&s->gb, ¤t[x], previous, |
|
linesize, pmv, x, y); |
|
if (result != 0) |
|
{ |
|
#ifdef DEBUG_SVQ1 |
|
printf("Error in svq1_decode_delta_block %i\n",result); |
|
#endif |
|
return result; |
|
} |
|
} |
|
|
|
pmv[0].x = |
|
pmv[0].y = 0; |
|
|
|
current += 16*linesize; |
|
} |
|
} |
|
|
|
pict->data[i] = s->current_picture[i]; |
|
pict->linesize[i] = linesize; |
|
} |
|
|
|
*data_size=sizeof(AVPicture); |
|
return buf_size; |
|
} |
|
|
|
static int svq1_decode_init(AVCodecContext *avctx) |
|
{ |
|
MpegEncContext *s = avctx->priv_data; |
|
|
|
s->avctx = avctx; |
|
s->width = (avctx->width+3)&~3; |
|
s->height = (avctx->height+3)&~3; |
|
s->codec_id= avctx->codec->id; |
|
avctx->mbskip_table= s->mbskip_table; |
|
avctx->pix_fmt = PIX_FMT_YUV410P; |
|
avctx->has_b_frames= s->has_b_frames=1; // not true, but DP frames and these behave like unidirectional b frames |
|
s->flags= avctx->flags; |
|
if (MPV_common_init(s) < 0) return -1; |
|
return 0; |
|
} |
|
|
|
static int svq1_decode_end(AVCodecContext *avctx) |
|
{ |
|
MpegEncContext *s = avctx->priv_data; |
|
|
|
MPV_common_end(s); |
|
return 0; |
|
} |
|
|
|
AVCodec svq1_decoder = { |
|
"svq1", |
|
CODEC_TYPE_VIDEO, |
|
CODEC_ID_SVQ1, |
|
sizeof(MpegEncContext), |
|
svq1_decode_init, |
|
NULL, |
|
svq1_decode_end, |
|
svq1_decode_frame, |
|
CODEC_CAP_DR1, |
|
};
|
|
|