1/*
2 * copyright (c) 2000,2001 Fabrice Bellard
3 * H263+ support
4 * copyright (c) 2001 Juan J. Sierralta P
5 * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24/**
25 * @file libavcodec/h263data.h
26 * H.263 tables.
27 */
28
29#ifndef AVCODEC_H263DATA_H
30#define AVCODEC_H263DATA_H
31
32#include <stdint.h>
33#include "mpegvideo.h"
34
35/* intra MCBPC, mb_type = (intra), then (intraq) */
36const uint8_t intra_MCBPC_code[9] = { 1, 1, 2, 3, 1, 1, 2, 3, 1 };
37const uint8_t intra_MCBPC_bits[9] = { 1, 3, 3, 3, 4, 6, 6, 6, 9 };
38
39/* inter MCBPC, mb_type = (inter), (intra), (interq), (intraq), (inter4v) */
40/* Changed the tables for interq and inter4v+q, following the standard ** Juanjo ** */
41const uint8_t inter_MCBPC_code[28] = {
42    1, 3, 2, 5,
43    3, 4, 3, 3,
44    3, 7, 6, 5,
45    4, 4, 3, 2,
46    2, 5, 4, 5,
47    1, 0, 0, 0, /* Stuffing */
48    2, 12, 14, 15,
49};
50const uint8_t inter_MCBPC_bits[28] = {
51    1, 4, 4, 6, /* inter  */
52    5, 8, 8, 7, /* intra  */
53    3, 7, 7, 9, /* interQ */
54    6, 9, 9, 9, /* intraQ */
55    3, 7, 7, 8, /* inter4 */
56    9, 0, 0, 0, /* Stuffing */
57    11, 13, 13, 13,/* inter4Q*/
58};
59
60static const uint8_t h263_mbtype_b_tab[15][2] = {
61 {1, 1},
62 {3, 3},
63 {1, 5},
64 {4, 4},
65 {5, 4},
66 {6, 6},
67 {2, 4},
68 {3, 4},
69 {7, 6},
70 {4, 6},
71 {5, 6},
72 {1, 6},
73 {1,10},
74 {1, 7},
75 {1, 8},
76};
77
78static const int h263_mb_type_b_map[15]= {
79    MB_TYPE_DIRECT2 | MB_TYPE_L0L1,
80    MB_TYPE_DIRECT2 | MB_TYPE_L0L1 | MB_TYPE_CBP,
81    MB_TYPE_DIRECT2 | MB_TYPE_L0L1 | MB_TYPE_CBP | MB_TYPE_QUANT,
82                      MB_TYPE_L0                                 | MB_TYPE_16x16,
83                      MB_TYPE_L0   | MB_TYPE_CBP                 | MB_TYPE_16x16,
84                      MB_TYPE_L0   | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
85                      MB_TYPE_L1                                 | MB_TYPE_16x16,
86                      MB_TYPE_L1   | MB_TYPE_CBP                 | MB_TYPE_16x16,
87                      MB_TYPE_L1   | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
88                      MB_TYPE_L0L1                               | MB_TYPE_16x16,
89                      MB_TYPE_L0L1 | MB_TYPE_CBP                 | MB_TYPE_16x16,
90                      MB_TYPE_L0L1 | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
91    0, //stuffing
92    MB_TYPE_INTRA4x4                | MB_TYPE_CBP,
93    MB_TYPE_INTRA4x4                | MB_TYPE_CBP | MB_TYPE_QUANT,
94};
95
96static const uint8_t cbpc_b_tab[4][2] = {
97{0, 1},
98{2, 2},
99{7, 3},
100{6, 3},
101};
102
103const uint8_t cbpy_tab[16][2] =
104{
105  {3,4}, {5,5}, {4,5}, {9,4}, {3,5}, {7,4}, {2,6}, {11,4},
106  {2,5}, {3,6}, {5,4}, {10,4}, {4,4}, {8,4}, {6,4}, {3,2}
107};
108
109const uint8_t mvtab[33][2] =
110{
111  {1,1}, {1,2}, {1,3}, {1,4}, {3,6}, {5,7}, {4,7}, {3,7},
112  {11,9}, {10,9}, {9,9}, {17,10}, {16,10}, {15,10}, {14,10}, {13,10},
113  {12,10}, {11,10}, {10,10}, {9,10}, {8,10}, {7,10}, {6,10}, {5,10},
114  {4,10}, {7,11}, {6,11}, {5,11}, {4,11}, {3,11}, {2,11}, {3,12},
115  {2,12}
116};
117
118/* third non intra table */
119const uint16_t inter_vlc[103][2] = {
120{ 0x2, 2 },{ 0xf, 4 },{ 0x15, 6 },{ 0x17, 7 },
121{ 0x1f, 8 },{ 0x25, 9 },{ 0x24, 9 },{ 0x21, 10 },
122{ 0x20, 10 },{ 0x7, 11 },{ 0x6, 11 },{ 0x20, 11 },
123{ 0x6, 3 },{ 0x14, 6 },{ 0x1e, 8 },{ 0xf, 10 },
124{ 0x21, 11 },{ 0x50, 12 },{ 0xe, 4 },{ 0x1d, 8 },
125{ 0xe, 10 },{ 0x51, 12 },{ 0xd, 5 },{ 0x23, 9 },
126{ 0xd, 10 },{ 0xc, 5 },{ 0x22, 9 },{ 0x52, 12 },
127{ 0xb, 5 },{ 0xc, 10 },{ 0x53, 12 },{ 0x13, 6 },
128{ 0xb, 10 },{ 0x54, 12 },{ 0x12, 6 },{ 0xa, 10 },
129{ 0x11, 6 },{ 0x9, 10 },{ 0x10, 6 },{ 0x8, 10 },
130{ 0x16, 7 },{ 0x55, 12 },{ 0x15, 7 },{ 0x14, 7 },
131{ 0x1c, 8 },{ 0x1b, 8 },{ 0x21, 9 },{ 0x20, 9 },
132{ 0x1f, 9 },{ 0x1e, 9 },{ 0x1d, 9 },{ 0x1c, 9 },
133{ 0x1b, 9 },{ 0x1a, 9 },{ 0x22, 11 },{ 0x23, 11 },
134{ 0x56, 12 },{ 0x57, 12 },{ 0x7, 4 },{ 0x19, 9 },
135{ 0x5, 11 },{ 0xf, 6 },{ 0x4, 11 },{ 0xe, 6 },
136{ 0xd, 6 },{ 0xc, 6 },{ 0x13, 7 },{ 0x12, 7 },
137{ 0x11, 7 },{ 0x10, 7 },{ 0x1a, 8 },{ 0x19, 8 },
138{ 0x18, 8 },{ 0x17, 8 },{ 0x16, 8 },{ 0x15, 8 },
139{ 0x14, 8 },{ 0x13, 8 },{ 0x18, 9 },{ 0x17, 9 },
140{ 0x16, 9 },{ 0x15, 9 },{ 0x14, 9 },{ 0x13, 9 },
141{ 0x12, 9 },{ 0x11, 9 },{ 0x7, 10 },{ 0x6, 10 },
142{ 0x5, 10 },{ 0x4, 10 },{ 0x24, 11 },{ 0x25, 11 },
143{ 0x26, 11 },{ 0x27, 11 },{ 0x58, 12 },{ 0x59, 12 },
144{ 0x5a, 12 },{ 0x5b, 12 },{ 0x5c, 12 },{ 0x5d, 12 },
145{ 0x5e, 12 },{ 0x5f, 12 },{ 0x3, 7 },
146};
147
148const int8_t inter_level[102] = {
149  1,  2,  3,  4,  5,  6,  7,  8,
150  9, 10, 11, 12,  1,  2,  3,  4,
151  5,  6,  1,  2,  3,  4,  1,  2,
152  3,  1,  2,  3,  1,  2,  3,  1,
153  2,  3,  1,  2,  1,  2,  1,  2,
154  1,  2,  1,  1,  1,  1,  1,  1,
155  1,  1,  1,  1,  1,  1,  1,  1,
156  1,  1,  1,  2,  3,  1,  2,  1,
157  1,  1,  1,  1,  1,  1,  1,  1,
158  1,  1,  1,  1,  1,  1,  1,  1,
159  1,  1,  1,  1,  1,  1,  1,  1,
160  1,  1,  1,  1,  1,  1,  1,  1,
161  1,  1,  1,  1,  1,  1,
162};
163
164const int8_t inter_run[102] = {
165  0,  0,  0,  0,  0,  0,  0,  0,
166  0,  0,  0,  0,  1,  1,  1,  1,
167  1,  1,  2,  2,  2,  2,  3,  3,
168  3,  4,  4,  4,  5,  5,  5,  6,
169  6,  6,  7,  7,  8,  8,  9,  9,
170 10, 10, 11, 12, 13, 14, 15, 16,
171 17, 18, 19, 20, 21, 22, 23, 24,
172 25, 26,  0,  0,  0,  1,  1,  2,
173  3,  4,  5,  6,  7,  8,  9, 10,
174 11, 12, 13, 14, 15, 16, 17, 18,
175 19, 20, 21, 22, 23, 24, 25, 26,
176 27, 28, 29, 30, 31, 32, 33, 34,
177 35, 36, 37, 38, 39, 40,
178};
179
180static RLTable rl_inter = {
181    102,
182    58,
183    inter_vlc,
184    inter_run,
185    inter_level,
186};
187
188static const uint16_t intra_vlc_aic[103][2] = {
189{  0x2,  2 }, {  0x6,  3 }, {  0xe,  4 }, {  0xc,  5 },
190{  0xd,  5 }, { 0x10,  6 }, { 0x11,  6 }, { 0x12,  6 },
191{ 0x16,  7 }, { 0x1b,  8 }, { 0x20,  9 }, { 0x21,  9 },
192{ 0x1a,  9 }, { 0x1b,  9 }, { 0x1c,  9 }, { 0x1d,  9 },
193{ 0x1e,  9 }, { 0x1f,  9 }, { 0x23, 11 }, { 0x22, 11 },
194{ 0x57, 12 }, { 0x56, 12 }, { 0x55, 12 }, { 0x54, 12 },
195{ 0x53, 12 }, {  0xf,  4 }, { 0x14,  6 }, { 0x14,  7 },
196{ 0x1e,  8 }, {  0xf, 10 }, { 0x21, 11 }, { 0x50, 12 },
197{  0xb,  5 }, { 0x15,  7 }, {  0xe, 10 }, {  0x9, 10 },
198{ 0x15,  6 }, { 0x1d,  8 }, {  0xd, 10 }, { 0x51, 12 },
199{ 0x13,  6 }, { 0x23,  9 }, {  0x7, 11 }, { 0x17,  7 },
200{ 0x22,  9 }, { 0x52, 12 }, { 0x1c,  8 }, {  0xc, 10 },
201{ 0x1f,  8 }, {  0xb, 10 }, { 0x25,  9 }, {  0xa, 10 },
202{ 0x24,  9 }, {  0x6, 11 }, { 0x21, 10 }, { 0x20, 10 },
203{  0x8, 10 }, { 0x20, 11 }, {  0x7,  4 }, {  0xc,  6 },
204{ 0x10,  7 }, { 0x13,  8 }, { 0x11,  9 }, { 0x12,  9 },
205{  0x4, 10 }, { 0x27, 11 }, { 0x26, 11 }, { 0x5f, 12 },
206{  0xf,  6 }, { 0x13,  9 }, {  0x5, 10 }, { 0x25, 11 },
207{  0xe,  6 }, { 0x14,  9 }, { 0x24, 11 }, {  0xd,  6 },
208{  0x6, 10 }, { 0x5e, 12 }, { 0x11,  7 }, {  0x7, 10 },
209{ 0x13,  7 }, { 0x5d, 12 }, { 0x12,  7 }, { 0x5c, 12 },
210{ 0x14,  8 }, { 0x5b, 12 }, { 0x15,  8 }, { 0x1a,  8 },
211{ 0x19,  8 }, { 0x18,  8 }, { 0x17,  8 }, { 0x16,  8 },
212{ 0x19,  9 }, { 0x15,  9 }, { 0x16,  9 }, { 0x18,  9 },
213{ 0x17,  9 }, {  0x4, 11 }, {  0x5, 11 }, { 0x58, 12 },
214{ 0x59, 12 }, { 0x5a, 12 }, {  0x3,  7 },
215};
216
217static const int8_t intra_run_aic[102] = {
218 0,  0,  0,  0,  0,  0,  0,  0,
219 0,  0,  0,  0,  0,  0,  0,  0,
220 0,  0,  0,  0,  0,  0,  0,  0,
221 0,  1,  1,  1,  1,  1,  1,  1,
222 2,  2,  2,  2,  3,  3,  3,  3,
223 4,  4,  4,  5,  5,  5,  6,  6,
224 7,  7,  8,  8,  9,  9, 10, 11,
22512, 13,  0,  0,  0,  0,  0,  0,
226 0,  0,  0,  0,  1,  1,  1,  1,
227 2,  2,  2,  3,  3,  3,  4,  4,
228 5,  5,  6,  6,  7,  7,  8,  9,
22910, 11, 12, 13, 14, 15, 16, 17,
23018, 19, 20, 21, 22, 23,
231};
232
233static const int8_t intra_level_aic[102] = {
234 1,  2,  3,  4,  5,  6,  7,  8,
235 9, 10, 11, 12, 13, 14, 15, 16,
23617, 18, 19, 20, 21, 22, 23, 24,
23725,  1,  2,  3,  4,  5,  6,  7,
238 1,  2,  3,  4,  1,  2,  3,  4,
239 1,  2,  3,  1,  2,  3,  1,  2,
240 1,  2,  1,  2,  1,  2,  1,  1,
241 1,  1,  1,  2,  3,  4,  5,  6,
242 7,  8,  9, 10,  1,  2,  3,  4,
243 1,  2,  3,  1,  2,  3,  1,  2,
244 1,  2,  1,  2,  1,  2,  1,  1,
245 1,  1,  1,  1,  1,  1,  1,  1,
246 1,  1,  1,  1,  1,  1,
247};
248
249static RLTable rl_intra_aic = {
250    102,
251    58,
252    intra_vlc_aic,
253    intra_run_aic,
254    intra_level_aic,
255};
256
257static const uint8_t wrong_run[102] = {
258 1,  2,  3,  5,  4, 10,  9,  8,
25911, 15, 17, 16, 23, 22, 21, 20,
26019, 18, 25, 24, 27, 26, 11,  7,
261 6,  1,  2, 13,  2,  2,  2,  2,
262 6, 12,  3,  9,  1,  3,  4,  3,
263 7,  4,  1,  1,  5,  5, 14,  6,
264 1,  7,  1,  8,  1,  1,  1,  1,
26510,  1,  1,  5,  9, 17, 25, 24,
26629, 33, 32, 41,  2, 23, 28, 31,
267 3, 22, 30,  4, 27, 40,  8, 26,
268 6, 39,  7, 38, 16, 37, 15, 10,
26911, 12, 13, 14,  1, 21, 20, 18,
27019,  2,  1, 34, 35, 36
271};
272
273static const uint16_t h263_format[8][2] = {
274    { 0, 0 },
275    { 128, 96 },
276    { 176, 144 },
277    { 352, 288 },
278    { 704, 576 },
279    { 1408, 1152 },
280};
281
282const uint8_t ff_aic_dc_scale_table[32]={
283//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
284    0, 2, 4, 6, 8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62
285};
286
287static const uint8_t modified_quant_tab[2][32]={
288//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
289{
290    0, 3, 1, 2, 3, 4, 5, 6, 7, 8, 9, 9,10,11,12,13,14,15,16,17,18,18,19,20,21,22,23,24,25,26,27,28
291},{
292    0, 2, 3, 4, 5, 6, 7, 8, 9,10,11,13,14,15,16,17,18,19,20,21,22,24,25,26,27,28,29,30,31,31,31,26
293}
294};
295
296const uint8_t ff_h263_chroma_qscale_table[32]={
297//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
298    0, 1, 2, 3, 4, 5, 6, 6, 7, 8, 9, 9,10,10,11,11,12,12,12,13,13,13,14,14,14,14,14,15,15,15,15,15
299};
300
301const uint16_t ff_mba_max[6]={
302     47,  98, 395,1583,6335,9215
303};
304
305const uint8_t ff_mba_length[7]={
306      6,   7,   9,  11,  13,  14,  14
307};
308
309const uint8_t ff_h263_loop_filter_strength[32]={
310//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
311    0, 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9,10,10,10,11,11,11,12,12,12
312};
313
314#endif /* AVCODEC_H263DATA_H */
315