FFmpeg: libavcodec/h264data.h Source File

00001 /*
00002  * H26L/H264/AVC/JVT/14496-10/... encoder/decoder
00003  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00029 #ifndef AVCODEC_H264DATA_H
00030 #define AVCODEC_H264DATA_H
00031 
00032 #include <stdint.h>
00033 #include "libavutil/rational.h"
00034 #include "mpegvideo.h"
00035 #include "h264.h"
00036 
00037 
00038 static const uint8_t golomb_to_pict_type[5]=
00039 {FF_P_TYPE, FF_B_TYPE, FF_I_TYPE, FF_SP_TYPE, FF_SI_TYPE};
00040 
00041 static const uint8_t golomb_to_intra4x4_cbp[48]={
00042  47, 31, 15,  0, 23, 27, 29, 30,  7, 11, 13, 14, 39, 43, 45, 46,
00043  16,  3,  5, 10, 12, 19, 21, 26, 28, 35, 37, 42, 44,  1,  2,  4,
00044   8, 17, 18, 20, 24,  6,  9, 22, 25, 32, 33, 34, 36, 40, 38, 41
00045 };
00046 
00047 static const uint8_t golomb_to_inter_cbp[48]={
00048   0, 16,  1,  2,  4,  8, 32,  3,  5, 10, 12, 15, 47,  7, 11, 13,
00049  14,  6,  9, 31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46,
00050  17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41
00051 };
00052 
00053 static const uint8_t zigzag_scan[16]={
00054  0+0*4, 1+0*4, 0+1*4, 0+2*4,
00055  1+1*4, 2+0*4, 3+0*4, 2+1*4,
00056  1+2*4, 0+3*4, 1+3*4, 2+2*4,
00057  3+1*4, 3+2*4, 2+3*4, 3+3*4,
00058 };
00059 
00060 static const uint8_t field_scan[16]={
00061  0+0*4, 0+1*4, 1+0*4, 0+2*4,
00062  0+3*4, 1+1*4, 1+2*4, 1+3*4,
00063  2+0*4, 2+1*4, 2+2*4, 2+3*4,
00064  3+0*4, 3+1*4, 3+2*4, 3+3*4,
00065 };
00066 
00067 static const uint8_t luma_dc_zigzag_scan[16]={
00068  0*16 + 0*64, 1*16 + 0*64, 2*16 + 0*64, 0*16 + 2*64,
00069  3*16 + 0*64, 0*16 + 1*64, 1*16 + 1*64, 2*16 + 1*64,
00070  1*16 + 2*64, 2*16 + 2*64, 3*16 + 2*64, 0*16 + 3*64,
00071  3*16 + 1*64, 1*16 + 3*64, 2*16 + 3*64, 3*16 + 3*64,
00072 };
00073 
00074 static const uint8_t luma_dc_field_scan[16]={
00075  0*16 + 0*64, 2*16 + 0*64, 1*16 + 0*64, 0*16 + 2*64,
00076  2*16 + 2*64, 3*16 + 0*64, 1*16 + 2*64, 3*16 + 2*64,
00077  0*16 + 1*64, 2*16 + 1*64, 0*16 + 3*64, 2*16 + 3*64,
00078  1*16 + 1*64, 3*16 + 1*64, 1*16 + 3*64, 3*16 + 3*64,
00079 };
00080 
00081 static const uint8_t chroma_dc_scan[4]={
00082  0,1,2,3
00083 };
00084 
00085 // zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
00086 static const uint8_t zigzag_scan8x8_cavlc[64]={
00087  0+0*8, 1+1*8, 1+2*8, 2+2*8,
00088  4+1*8, 0+5*8, 3+3*8, 7+0*8,
00089  3+4*8, 1+7*8, 5+3*8, 6+3*8,
00090  2+7*8, 6+4*8, 5+6*8, 7+5*8,
00091  1+0*8, 2+0*8, 0+3*8, 3+1*8,
00092  3+2*8, 0+6*8, 4+2*8, 6+1*8,
00093  2+5*8, 2+6*8, 6+2*8, 5+4*8,
00094  3+7*8, 7+3*8, 4+7*8, 7+6*8,
00095  0+1*8, 3+0*8, 0+4*8, 4+0*8,
00096  2+3*8, 1+5*8, 5+1*8, 5+2*8,
00097  1+6*8, 3+5*8, 7+1*8, 4+5*8,
00098  4+6*8, 7+4*8, 5+7*8, 6+7*8,
00099  0+2*8, 2+1*8, 1+3*8, 5+0*8,
00100  1+4*8, 2+4*8, 6+0*8, 4+3*8,
00101  0+7*8, 4+4*8, 7+2*8, 3+6*8,
00102  5+5*8, 6+5*8, 6+6*8, 7+7*8,
00103 };
00104 
00105 static const uint8_t field_scan8x8[64]={
00106  0+0*8, 0+1*8, 0+2*8, 1+0*8,
00107  1+1*8, 0+3*8, 0+4*8, 1+2*8,
00108  2+0*8, 1+3*8, 0+5*8, 0+6*8,
00109  0+7*8, 1+4*8, 2+1*8, 3+0*8,
00110  2+2*8, 1+5*8, 1+6*8, 1+7*8,
00111  2+3*8, 3+1*8, 4+0*8, 3+2*8,
00112  2+4*8, 2+5*8, 2+6*8, 2+7*8,
00113  3+3*8, 4+1*8, 5+0*8, 4+2*8,
00114  3+4*8, 3+5*8, 3+6*8, 3+7*8,
00115  4+3*8, 5+1*8, 6+0*8, 5+2*8,
00116  4+4*8, 4+5*8, 4+6*8, 4+7*8,
00117  5+3*8, 6+1*8, 6+2*8, 5+4*8,
00118  5+5*8, 5+6*8, 5+7*8, 6+3*8,
00119  7+0*8, 7+1*8, 6+4*8, 6+5*8,
00120  6+6*8, 6+7*8, 7+2*8, 7+3*8,
00121  7+4*8, 7+5*8, 7+6*8, 7+7*8,
00122 };
00123 
00124 static const uint8_t field_scan8x8_cavlc[64]={
00125  0+0*8, 1+1*8, 2+0*8, 0+7*8,
00126  2+2*8, 2+3*8, 2+4*8, 3+3*8,
00127  3+4*8, 4+3*8, 4+4*8, 5+3*8,
00128  5+5*8, 7+0*8, 6+6*8, 7+4*8,
00129  0+1*8, 0+3*8, 1+3*8, 1+4*8,
00130  1+5*8, 3+1*8, 2+5*8, 4+1*8,
00131  3+5*8, 5+1*8, 4+5*8, 6+1*8,
00132  5+6*8, 7+1*8, 6+7*8, 7+5*8,
00133  0+2*8, 0+4*8, 0+5*8, 2+1*8,
00134  1+6*8, 4+0*8, 2+6*8, 5+0*8,
00135  3+6*8, 6+0*8, 4+6*8, 6+2*8,
00136  5+7*8, 6+4*8, 7+2*8, 7+6*8,
00137  1+0*8, 1+2*8, 0+6*8, 3+0*8,
00138  1+7*8, 3+2*8, 2+7*8, 4+2*8,
00139  3+7*8, 5+2*8, 4+7*8, 5+4*8,
00140  6+3*8, 6+5*8, 7+3*8, 7+7*8,
00141 };
00142 
00143 typedef struct IMbInfo{
00144     uint16_t type;
00145     uint8_t pred_mode;
00146     uint8_t cbp;
00147 } IMbInfo;
00148 
00149 static const IMbInfo i_mb_type_info[26]={
00150 {MB_TYPE_INTRA4x4  , -1, -1},
00151 {MB_TYPE_INTRA16x16,  2,  0},
00152 {MB_TYPE_INTRA16x16,  1,  0},
00153 {MB_TYPE_INTRA16x16,  0,  0},
00154 {MB_TYPE_INTRA16x16,  3,  0},
00155 {MB_TYPE_INTRA16x16,  2,  16},
00156 {MB_TYPE_INTRA16x16,  1,  16},
00157 {MB_TYPE_INTRA16x16,  0,  16},
00158 {MB_TYPE_INTRA16x16,  3,  16},
00159 {MB_TYPE_INTRA16x16,  2,  32},
00160 {MB_TYPE_INTRA16x16,  1,  32},
00161 {MB_TYPE_INTRA16x16,  0,  32},
00162 {MB_TYPE_INTRA16x16,  3,  32},
00163 {MB_TYPE_INTRA16x16,  2,  15+0},
00164 {MB_TYPE_INTRA16x16,  1,  15+0},
00165 {MB_TYPE_INTRA16x16,  0,  15+0},
00166 {MB_TYPE_INTRA16x16,  3,  15+0},
00167 {MB_TYPE_INTRA16x16,  2,  15+16},
00168 {MB_TYPE_INTRA16x16,  1,  15+16},
00169 {MB_TYPE_INTRA16x16,  0,  15+16},
00170 {MB_TYPE_INTRA16x16,  3,  15+16},
00171 {MB_TYPE_INTRA16x16,  2,  15+32},
00172 {MB_TYPE_INTRA16x16,  1,  15+32},
00173 {MB_TYPE_INTRA16x16,  0,  15+32},
00174 {MB_TYPE_INTRA16x16,  3,  15+32},
00175 {MB_TYPE_INTRA_PCM , -1, -1},
00176 };
00177 
00178 typedef struct PMbInfo{
00179     uint16_t type;
00180     uint8_t partition_count;
00181 } PMbInfo;
00182 
00183 static const PMbInfo p_mb_type_info[5]={
00184 {MB_TYPE_16x16|MB_TYPE_P0L0             , 1},
00185 {MB_TYPE_16x8 |MB_TYPE_P0L0|MB_TYPE_P1L0, 2},
00186 {MB_TYPE_8x16 |MB_TYPE_P0L0|MB_TYPE_P1L0, 2},
00187 {MB_TYPE_8x8  |MB_TYPE_P0L0|MB_TYPE_P1L0, 4},
00188 {MB_TYPE_8x8  |MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_REF0, 4},
00189 };
00190 
00191 static const PMbInfo p_sub_mb_type_info[4]={
00192 {MB_TYPE_16x16|MB_TYPE_P0L0             , 1},
00193 {MB_TYPE_16x8 |MB_TYPE_P0L0             , 2},
00194 {MB_TYPE_8x16 |MB_TYPE_P0L0             , 2},
00195 {MB_TYPE_8x8  |MB_TYPE_P0L0             , 4},
00196 };
00197 
00198 static const PMbInfo b_mb_type_info[23]={
00199 {MB_TYPE_DIRECT2|MB_TYPE_L0L1                                      , 1, },
00200 {MB_TYPE_16x16|MB_TYPE_P0L0                                       , 1, },
00201 {MB_TYPE_16x16             |MB_TYPE_P0L1                          , 1, },
00202 {MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1                          , 1, },
00203 {MB_TYPE_16x8 |MB_TYPE_P0L0             |MB_TYPE_P1L0             , 2, },
00204 {MB_TYPE_8x16 |MB_TYPE_P0L0             |MB_TYPE_P1L0             , 2, },
00205 {MB_TYPE_16x8              |MB_TYPE_P0L1             |MB_TYPE_P1L1, 2, },
00206 {MB_TYPE_8x16              |MB_TYPE_P0L1             |MB_TYPE_P1L1, 2, },
00207 {MB_TYPE_16x8 |MB_TYPE_P0L0                          |MB_TYPE_P1L1, 2, },
00208 {MB_TYPE_8x16 |MB_TYPE_P0L0                          |MB_TYPE_P1L1, 2, },
00209 {MB_TYPE_16x8              |MB_TYPE_P0L1|MB_TYPE_P1L0             , 2, },
00210 {MB_TYPE_8x16              |MB_TYPE_P0L1|MB_TYPE_P1L0             , 2, },
00211 {MB_TYPE_16x8 |MB_TYPE_P0L0             |MB_TYPE_P1L0|MB_TYPE_P1L1, 2, },
00212 {MB_TYPE_8x16 |MB_TYPE_P0L0             |MB_TYPE_P1L0|MB_TYPE_P1L1, 2, },
00213 {MB_TYPE_16x8              |MB_TYPE_P0L1|MB_TYPE_P1L0|MB_TYPE_P1L1, 2, },
00214 {MB_TYPE_8x16              |MB_TYPE_P0L1|MB_TYPE_P1L0|MB_TYPE_P1L1, 2, },
00215 {MB_TYPE_16x8 |MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_P1L0             , 2, },
00216 {MB_TYPE_8x16 |MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_P1L0             , 2, },
00217 {MB_TYPE_16x8 |MB_TYPE_P0L0|MB_TYPE_P0L1             |MB_TYPE_P1L1, 2, },
00218 {MB_TYPE_8x16 |MB_TYPE_P0L0|MB_TYPE_P0L1             |MB_TYPE_P1L1, 2, },
00219 {MB_TYPE_16x8 |MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_P1L0|MB_TYPE_P1L1, 2, },
00220 {MB_TYPE_8x16 |MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_P1L0|MB_TYPE_P1L1, 2, },
00221 {MB_TYPE_8x8  |MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_P1L0|MB_TYPE_P1L1, 4, },
00222 };
00223 
00224 static const PMbInfo b_sub_mb_type_info[13]={
00225 {MB_TYPE_DIRECT2                                                   , 1, },
00226 {MB_TYPE_16x16|MB_TYPE_P0L0                                       , 1, },
00227 {MB_TYPE_16x16             |MB_TYPE_P0L1                          , 1, },
00228 {MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1                          , 1, },
00229 {MB_TYPE_16x8 |MB_TYPE_P0L0             |MB_TYPE_P1L0             , 2, },
00230 {MB_TYPE_8x16 |MB_TYPE_P0L0             |MB_TYPE_P1L0             , 2, },
00231 {MB_TYPE_16x8              |MB_TYPE_P0L1             |MB_TYPE_P1L1, 2, },
00232 {MB_TYPE_8x16              |MB_TYPE_P0L1             |MB_TYPE_P1L1, 2, },
00233 {MB_TYPE_16x8 |MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_P1L0|MB_TYPE_P1L1, 2, },
00234 {MB_TYPE_8x16 |MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_P1L0|MB_TYPE_P1L1, 2, },
00235 {MB_TYPE_8x8  |MB_TYPE_P0L0             |MB_TYPE_P1L0             , 4, },
00236 {MB_TYPE_8x8               |MB_TYPE_P0L1             |MB_TYPE_P1L1, 4, },
00237 {MB_TYPE_8x8  |MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_P1L0|MB_TYPE_P1L1, 4, },
00238 };
00239 
00240 static const uint8_t dequant4_coeff_init[6][3]={
00241   {10,13,16},
00242   {11,14,18},
00243   {13,16,20},
00244   {14,18,23},
00245   {16,20,25},
00246   {18,23,29},
00247 };
00248 
00249 static const uint8_t dequant8_coeff_init_scan[16] = {
00250   0,3,4,3, 3,1,5,1, 4,5,2,5, 3,1,5,1
00251 };
00252 static const uint8_t dequant8_coeff_init[6][6]={
00253   {20,18,32,19,25,24},
00254   {22,19,35,21,28,26},
00255   {26,23,42,24,33,31},
00256   {28,25,45,26,35,33},
00257   {32,28,51,30,40,38},
00258   {36,32,58,34,46,43},
00259 };
00260 
00261 #endif /* AVCODEC_H264DATA_H */