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revision 1.6.2.2, Sat Dec 14 09:39:42 2002 UTC revision 1.10, Tue Sep 10 21:28:17 2002 UTC
# Line 1  Line 1 
1    /*****************************************************************************
2     *
3     *  XVID MPEG-4 VIDEO CODEC
4     *  - Vector Length Coding tables -
5     *
6     *  Copyright(C) 2002 Michael Militzer
7     *
8     *
9     *  This program is an implementation of a part of one or more MPEG-4
10     *  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending
11     *  to use this software module in hardware or software products are
12     *  advised that its use may infringe existing patents or copyrights, and
13     *  any such use would be at such party's own risk.  The original
14     *  developer of this software module and his/her company, and subsequent
15     *  editors and their companies, will have no liability for use of this
16     *  software or modifications or derivatives thereof.
17     *
18     *  This program is free software; you can redistribute it and/or modify
19     *  it under the terms of the GNU General Public License as published by
20     *  the Free Software Foundation; either version 2 of the License, or
21     *  (at your option) any later version.
22     *
23     *  This program is distributed in the hope that it will be useful,
24     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
25     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
26     *  GNU General Public License for more details.
27     *
28     *  You should have received a copy of the GNU General Public License
29     *  along with this program; if not, write to the Free Software
30     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
31     *
32     * $Id$
33     *
34     ****************************************************************************/
35    
36  #ifndef _VLC_CODES_H_  #ifndef _VLC_CODES_H_
37  #define _VLC_CODES_H_  #define _VLC_CODES_H_
38    
# Line 7  Line 42 
42  #define VLC_ERROR       (-1)  #define VLC_ERROR       (-1)
43  #define ESCAPE 7167  #define ESCAPE 7167
44    
45    /*****************************************************************************
46     * The Vector Length Coding structure
47     ****************************************************************************/
48    
49  typedef struct  typedef struct
50  {  {
51          uint32_t code;          uint32_t code;
# Line 17  Line 56 
56  static VLC *DCT3D[2];  static VLC *DCT3D[2];
57    
58    
59  /******************************************************************  /*****************************************************************************
60   * common tables between encoder/decoder                          *   * common tables between encoder/decoder
61   ******************************************************************/   ****************************************************************************/
62    
63  /* constants taken from momusys/vm_common/inlcude/max_level.h */  /* constants taken from momusys/vm_common/inlcude/max_level.h */
64  static char max_level[4][64] = {  static char const max_level[4][64] = {
65          {                                                       // intra, last = 0          /* intra, last = 0 */
66            {
67           27, 10, 5, 4, 3, 3, 3, 3,           27, 10, 5, 4, 3, 3, 3, 3,
68           2, 2, 1, 1, 1, 1, 1, 0,           2, 2, 1, 1, 1, 1, 1, 0,
69           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
# Line 31  Line 71 
71           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
72           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
73           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
74           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0
75           },           },
76    
77          {                                                       // intra, last = 1          /* intra, last = 1 */
78            {
79           8, 3, 2, 2, 2, 2, 2, 1,           8, 3, 2, 2, 2, 2, 2, 1,
80           1, 1, 1, 1, 1, 1, 1, 1,           1, 1, 1, 1, 1, 1, 1, 1,
81           1, 1, 1, 1, 1, 0, 0, 0,           1, 1, 1, 1, 1, 0, 0, 0,
# Line 42  Line 83 
83           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
84           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
85           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
86           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0
87           },           },
88    
89          {                                                       // inter, last = 0          /* inter, last = 0 */
90            {
91           12, 6, 4, 3, 3, 3, 3, 2,           12, 6, 4, 3, 3, 3, 3, 2,
92           2, 2, 2, 1, 1, 1, 1, 1,           2, 2, 2, 1, 1, 1, 1, 1,
93           1, 1, 1, 1, 1, 1, 1, 1,           1, 1, 1, 1, 1, 1, 1, 1,
# Line 53  Line 95 
95           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
96           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
97           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
98           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0
99           },           },
100    
101          {                                                       // inter, last = 1          /* inter, last = 1 */
102            {
103           3, 2, 1, 1, 1, 1, 1, 1,           3, 2, 1, 1, 1, 1, 1, 1,
104           1, 1, 1, 1, 1, 1, 1, 1,           1, 1, 1, 1, 1, 1, 1, 1,
105           1, 1, 1, 1, 1, 1, 1, 1,           1, 1, 1, 1, 1, 1, 1, 1,
# Line 64  Line 107 
107           1, 1, 1, 1, 1, 1, 1, 1,           1, 1, 1, 1, 1, 1, 1, 1,
108           1, 0, 0, 0, 0, 0, 0, 0,           1, 0, 0, 0, 0, 0, 0, 0,
109           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
110           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0
111           }           }
112  };  };
113    
114  static char max_run[4][256] = {  static char const max_run[4][256] = {
115          {                                                       // intra, last = 0          /* intra, last = 0 */
116            {
117           0, 14, 9, 7, 3, 2, 1, 1,           0, 14, 9, 7, 3, 2, 1, 1,
118           1, 1, 1, 0, 0, 0, 0, 0,           1, 1, 1, 0, 0, 0, 0, 0,
119           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
# Line 101  Line 145 
145           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
146           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
147           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
148           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0
149           },           },
150    
151          {                                                       // intra, last = 1          /* intra, last = 1 */
152            {
153           0, 20, 6, 1, 0, 0, 0, 0,           0, 20, 6, 1, 0, 0, 0, 0,
154           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
155           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
# Line 136  Line 181 
181           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
182           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
183           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
184           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0
185           },           },
186    
187          {                                                       // inter, last = 0          /* inter, last = 0 */
188            {
189           0, 26, 10, 6, 2, 1, 1, 0,           0, 26, 10, 6, 2, 1, 1, 0,
190           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
191           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
# Line 171  Line 217 
217           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
218           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
219           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
220           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0
221           },           },
222    
223          {                                                       // inter, last = 1          /* inter, last = 1 */
224            {
225           0, 40, 1, 0, 0, 0, 0, 0,           0, 40, 1, 0, 0, 0, 0, 0,
226           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
227           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
# Line 206  Line 253 
253           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
254           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
255           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0,
256           0, 0, 0, 0, 0, 0, 0, 0,           0, 0, 0, 0, 0, 0, 0, 0
257           }           }
258  };  };
259    
# Line 215  Line 262 
262   * encoder tables                                                 *   * encoder tables                                                 *
263   ******************************************************************/   ******************************************************************/
264    
 static VLC sprite_trajectory_code[32768];  
   
 static VLC sprite_trajectory_len[15] = {  
         { 0x00 , 2},  
         { 0x02 , 3}, { 0x03, 3}, { 0x04, 3}, { 0x05, 3}, { 0x06, 3},  
         { 0x0E , 4}, { 0x1E, 5}, { 0x3E, 6}, { 0x7F, 7}, { 0xFE, 8},  
         { 0x1FE, 9}, {0x3FE,10}, {0x7FE,11}, {0xFFE,12} };  
   
   
265  /* DCT coefficients. Four tables, two for last = 0, two for last = 1.  /* DCT coefficients. Four tables, two for last = 0, two for last = 1.
266     the sign bit must be added afterwards. */     the sign bit must be added afterwards. */
267    
268  /* first part of coeffs for last = 0. Indexed by [run][level-1] */  /* first part of coeffs for last = 0. Indexed by [run][level-1] */
269    
270  static VLC coeff_tab0[2][12] = {  static VLC const coeff_tab0[2][12] = {
271          /*          /* run = 0  */
            run = 0  
          */  
272          {          {
273           {0x02, 2}, {0x0f, 4}, {0x15, 6}, {0x17, 7},           {0x02, 2}, {0x0f, 4}, {0x15, 6}, {0x17, 7},
274           {0x1f, 8}, {0x25, 9}, {0x24, 9}, {0x21, 10},           {0x1f, 8}, {0x25, 9}, {0x24, 9}, {0x21, 10},
275           {0x20, 10}, {0x07, 11}, {0x06, 11}, {0x20, 11}           {0x20, 10}, {0x07, 11}, {0x06, 11}, {0x20, 11}
276           },           },
277          /*  
278             run = 1          /* run = 1 */
          */  
279          {          {
280           {0x06, 3}, {0x14, 6}, {0x1e, 8}, {0x0f, 10},           {0x06, 3}, {0x14, 6}, {0x1e, 8}, {0x0f, 10},
281           {0x21, 11}, {0x50, 12}, {0x00, 0}, {0x00, 0},           {0x21, 11}, {0x50, 12}, {0x00, 0}, {0x00, 0},
# Line 250  Line 285 
285    
286  /* rest of coeffs for last = 0. indexing by [run-2][level-1] */  /* rest of coeffs for last = 0. indexing by [run-2][level-1] */
287    
288  static VLC coeff_tab1[25][4] = {  static VLC const coeff_tab1[25][4] = {
289          /*          /* First row is run=2, then each row is run 2 + index */
290             run = 2          {{0x0e, 4}, {0x1d, 8}, {0x0e, 10}, {0x51, 12}},
291           */          {{0x0d, 5}, {0x23, 9},  {0x0d, 10}, {0x00, 0}},
292          {          {{0x0c, 5}, {0x22, 9},  {0x52, 12}, {0x00, 0}},
293           {0x0e, 4}, {0x1d, 8}, {0x0e, 10}, {0x51, 12}          {{0x0b, 5}, {0x0c, 10}, {0x53, 12}, {0x00, 0}},
294           },          {{0x13, 6}, {0x0b, 10}, {0x54, 12}, {0x00, 0}},
295          /*          {{0x12, 6}, {0x0a, 10}, {0x00, 0},  {0x00, 0}},
296             run = 3          {{0x11, 6}, {0x09, 10}, {0x00, 0},  {0x00, 0}},
297           */          {{0x10, 6}, {0x08, 10}, {0x00, 0},  {0x00, 0}},
298          {          {{0x16, 7}, {0x55, 12}, {0x00, 0},  {0x00, 0}},
299           {0x0d, 5}, {0x23, 9}, {0x0d, 10}, {0x00, 0}          {{0x15, 7}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
300           },          {{0x14, 7}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
301          /*          {{0x1c, 8}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
302             run = 4-26          {{0x1b, 8}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
303           */          {{0x21, 9}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
304          {          {{0x20, 9}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
305           {0x0c, 5}, {0x22, 9}, {0x52, 12}, {0x00, 0}          {{0x1f, 9}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
306           },          {{0x1e, 9}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
307          {          {{0x1d, 9}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
308           {0x0b, 5}, {0x0c, 10}, {0x53, 12}, {0x00, 0}          {{0x1c, 9}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
309           },          {{0x1b, 9}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
310          {          {{0x1a, 9}, {0x00, 0},  {0x00, 0},  {0x00, 0}},
311           {0x13, 6}, {0x0b, 10}, {0x54, 12}, {0x00, 0}          {{0x22, 11}, {0x00, 0}, {0x00, 0},  {0x00, 0}},
312           },          {{0x23, 11}, {0x00, 0}, {0x00, 0},  {0x00, 0}},
313          {          {{0x56, 12}, {0x00, 0}, {0x00, 0},  {0x00, 0}},
314           {0x12, 6}, {0x0a, 10}, {0x00, 0}, {0x00, 0}          {{0x57, 12}, {0x00, 0}, {0x00, 0},  {0x00, 0}}
315           },  
         {  
          {0x11, 6}, {0x09, 10}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x10, 6}, {0x08, 10}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x16, 7}, {0x55, 12}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x15, 7}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x14, 7}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x1c, 8}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x1b, 8}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x21, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x20, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x1f, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x1e, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x1d, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x1c, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x1b, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x1a, 9}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x22, 11}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x23, 11}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x56, 12}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          },  
         {  
          {0x57, 12}, {0x00, 0}, {0x00, 0}, {0x00, 0}  
          }  
316  };  };
317    
318  /* first coeffs of last = 1. indexing by [run][level-1] */  /* first coeffs of last = 1. indexing by [run][level-1] */
319    
320  static VLC coeff_tab2[2][3] = {  static VLC const coeff_tab2[2][3] = {
321          /*          /*  run = 0 */
322             run = 0          {{0x07, 4}, {0x19, 9},  {0x05, 11}},
323           */          /* run = 1 */
324          {          {{0x0f, 6}, {0x04, 11}, {0x00, 0}}
          {0x07, 4}, {0x19, 9}, {0x05, 11}  
          },  
         /*  
            run = 1  
          */  
         {  
          {0x0f, 6}, {0x04, 11}, {0x00, 0}  
          }  
325  };  };
326    
327  /* rest of coeffs for last = 1. indexing by [run-2] */  /* rest of coeffs for last = 1. indexing by [run-2] */
328    
329  static VLC coeff_tab3[40][1] = {  static VLC const coeff_tab3[40][1] = {
330          {{0x0e, 6}}, {{0x0d, 6}}, {{0x0c, 6}},          {{0x0e, 6}},  {{0x0d, 6}},  {{0x0c, 6}},  {{0x13, 7}},
331          {{0x13, 7}}, {{0x12, 7}}, {{0x11, 7}}, {{0x10, 7}},          {{0x12, 7}},  {{0x11, 7}},  {{0x10, 7}},  {{0x1a, 8}},
332          {{0x1a, 8}}, {{0x19, 8}}, {{0x18, 8}}, {{0x17, 8}},          {{0x19, 8}},  {{0x18, 8}},  {{0x17, 8}},  {{0x16, 8}},
333          {{0x16, 8}}, {{0x15, 8}}, {{0x14, 8}}, {{0x13, 8}},          {{0x15, 8}},  {{0x14, 8}},  {{0x13, 8}},  {{0x18, 9}},
334          {{0x18, 9}}, {{0x17, 9}}, {{0x16, 9}}, {{0x15, 9}},          {{0x17, 9}},  {{0x16, 9}},  {{0x15, 9}},  {{0x14, 9}},
335          {{0x14, 9}}, {{0x13, 9}}, {{0x12, 9}}, {{0x11, 9}},          {{0x13, 9}},  {{0x12, 9}},  {{0x11, 9}},  {{0x07, 10}},
336          {{0x07, 10}}, {{0x06, 10}}, {{0x05, 10}}, {{0x04, 10}},          {{0x06, 10}}, {{0x05, 10}}, {{0x04, 10}}, {{0x24, 11}},
337          {{0x24, 11}}, {{0x25, 11}}, {{0x26, 11}}, {{0x27, 11}},          {{0x25, 11}}, {{0x26, 11}}, {{0x27, 11}}, {{0x58, 12}},
338          {{0x58, 12}}, {{0x59, 12}}, {{0x5a, 12}}, {{0x5b, 12}},          {{0x59, 12}}, {{0x5a, 12}}, {{0x5b, 12}}, {{0x5c, 12}},
339          {{0x5c, 12}}, {{0x5d, 12}}, {{0x5e, 12}}, {{0x5f, 12}},          {{0x5d, 12}}, {{0x5e, 12}}, {{0x5f, 12}}, {{0x00, 0}}
         {{0x00, 0}}  
340  };  };
341    
342  /* New tables for Intra luminance coefficients. Same codewords,  /*
343     different meaning */   * New tables for Intra luminance coefficients. Same codewords,
344     * different meaning
345     */
346    
347  /* Coeffs for last = 0, run = 0. Indexed by [level-1] */  /* Coeffs for last = 0, run = 0. Indexed by [level-1] */
348    
349  static VLC coeff_tab4[27] = {  static VLC const coeff_tab4[27] = {
350          /*          /* run = 0 */
351             run = 0          {0x02, 2},  {0x06, 3},  {0x0f, 4},
352           */          {0x0d, 5},  {0x0c, 5},  {0x15, 6},
353          {0x02, 2}, {0x06, 3}, {0x0f, 4}, {0x0d, 5},          {0x13, 6},  {0x12, 6},  {0x17, 7},
354          {0x0c, 5}, {0x15, 6}, {0x13, 6}, {0x12, 6},          {0x1f, 8},  {0x1e, 8},  {0x1d, 8},
355          {0x17, 7}, {0x1f, 8}, {0x1e, 8}, {0x1d, 8},          {0x25, 9},  {0x24, 9},  {0x23, 9},
356          {0x25, 9}, {0x24, 9}, {0x23, 9}, {0x21, 9},          {0x21, 9},  {0x21, 10}, {0x20, 10},
357          {0x21, 10}, {0x20, 10}, {0x0f, 10}, {0x0e, 10},          {0x0f, 10}, {0x0e, 10}, {0x07, 11},
358          {0x07, 11}, {0x06, 11}, {0x20, 11}, {0x21, 11},          {0x06, 11}, {0x20, 11}, {0x21, 11},
359          {0x50, 12}, {0x51, 12}, {0x52, 12}          {0x50, 12}, {0x51, 12}, {0x52, 12}
360  };  };
361    
362  /* Coeffs for last = 0, run = 1. Indexed by [level-1] */  /* Coeffs for last = 0, run = 1. Indexed by [level-1] */
363    
364  static VLC coeff_tab5[10] = {  static VLC const coeff_tab5[10] = {
365          {0x0e, 4}, {0x14, 6}, {0x16, 7}, {0x1c, 8},          {0x0e, 4}, {0x14, 6},  {0x16, 7},  {0x1c, 8},  {0x20, 9},
366          {0x20, 9}, {0x1f, 9}, {0x0d, 10}, {0x22, 11},          {0x1f, 9}, {0x0d, 10}, {0x22, 11}, {0x53, 12}, {0x55, 12}
         {0x53, 12}, {0x55, 12}  
367  };  };
368    
369  /* Coeffs for last = 0, run = 2 -> 9. Indexed by [run-2][level-1] */  /* Coeffs for last = 0, run = 2 -> 9. Indexed by [run-2][level-1] */
370    
371  static VLC coeff_tab6[8][5] = {  static VLC coeff_tab6[8][5] = {
372          /*          /* run = 2 */
373             run = 2          {{0x0b, 5}, {0x15, 7}, {0x1e, 9}, {0x0c, 10}, {0x56, 12}},
374           */  
375          {          /* run = 3 */
376           {0x0b, 5}, {0x15, 7}, {0x1e, 9}, {0x0c, 10},          {{0x11, 6}, {0x1b, 8}, {0x1d, 9}, {0x0b, 10}, {0x00, 0}},
377           {0x56, 12}  
378           },          /* run = 4 */
379          /*          {{0x10, 6}, {0x22, 9}, {0x0a, 10}, {0x00, 0}, {0x00, 0}},
380             run = 3  
381           */          /* run = 5 */
382          {          {{0x0d, 6}, {0x1c, 9}, {0x08, 10}, {0x00, 0}, {0x00, 0}},
383           {0x11, 6}, {0x1b, 8}, {0x1d, 9}, {0x0b, 10},  
384           {0x00, 0}          /* run = 6 */
385           },          {{0x12, 7}, {0x1b, 9}, {0x54, 12}, {0x00, 0}, {0x00, 0}},
386          /*  
387             run = 4          /* run = 7 */
388           */          {{0x14, 7}, {0x1a, 9}, {0x57, 12}, {0x00, 0}, {0x00, 0}},
389          {  
390           {0x10, 6}, {0x22, 9}, {0x0a, 10}, {0x00, 0},          /* run = 8 */
391           {0x00, 0}          {{0x19, 8}, {0x09, 10}, {0x00, 0}, {0x00, 0}, {0x00, 0}},
392           },  
393          /*          /* run = 9 */
394             run = 5          {{0x18, 8}, {0x23, 11}, {0x00, 0}, {0x00, 0}, {0x00, 0}}
          */  
         {  
          {0x0d, 6}, {0x1c, 9}, {0x08, 10}, {0x00, 0},  
          {0x00, 0}  
          },  
         /*  
            run = 6  
          */  
         {  
          {0x12, 7}, {0x1b, 9}, {0x54, 12}, {0x00, 0},  
          {0x00, 0}  
          },  
         /*  
            run = 7  
          */  
         {  
          {0x14, 7}, {0x1a, 9}, {0x57, 12}, {0x00, 0},  
          {0x00, 0}  
          },  
         /*  
            run = 8  
          */  
         {  
          {0x19, 8}, {0x09, 10}, {0x00, 0}, {0x00, 0},  
          {0x00, 0}  
          },  
         /*  
            run = 9  
          */  
         {  
          {0x18, 8}, {0x23, 11}, {0x00, 0}, {0x00, 0},  
          {0x00, 0}  
          }  
395  };  };
396    
397  /* Coeffs for last = 0, run = 10 -> 14. Indexed by [run-10] */  /* Coeffs for last = 0, run = 10 -> 14. Indexed by [run-10] */
398    
399  static VLC coeff_tab7[5][1] = {  static VLC const coeff_tab7[5][1] = {
400          {{0x17, 8}}, {{0x19, 9}}, {{0x18, 9}}, {{0x07, 10}},          {{0x17, 8}},
401            {{0x19, 9}},
402            {{0x18, 9}},
403            {{0x07, 10}},
404          {{0x58, 12}}          {{0x58, 12}}
405  };  };
406    
407  /* Coeffs for last = 1, run = 0. Indexed by [level-1] */  /* Coeffs for last = 1, run = 0. Indexed by [level-1] */
408    
409  static VLC coeff_tab8[8] = {  static VLC const coeff_tab8[8] = {
410          {0x07, 4}, {0x0c, 6}, {0x16, 8}, {0x17, 9},          {0x07, 4}, {0x0c, 6}, {0x16, 8}, {0x17, 9},
411          {0x06, 10}, {0x05, 11}, {0x04, 11}, {0x59, 12}          {0x06, 10}, {0x05, 11}, {0x04, 11}, {0x59, 12}
412  };  };
413    
414  /* Coeffs for last = 1, run = 1 -> 6. Indexed by [run-1][level-1] */  /* Coeffs for last = 1, run = 1 -> 6. Indexed by [run-1][level-1] */
415    
416  static VLC coeff_tab9[6][3] = {  static VLC const coeff_tab9[6][3] = {
417          /*          /* run = 1 */
418             run = 1          {{0x0f, 6}, {0x16, 9}, {0x05, 10}},
419           */  
420          {          /* run = 2 */
421           {0x0f, 6}, {0x16, 9}, {0x05, 10}          {{0x0e, 6}, {0x04, 10}, {0x00, 0}},
422           },  
423          /*          /* run = 3 */
424             run = 2          {{0x11, 7}, {0x24, 11}, {0x00, 0}},
425           */  
426          {          /* run = 4 */
427           {0x0e, 6}, {0x04, 10}, {0x00, 0}          {{0x10, 7}, {0x25, 11}, {0x00, 0}},
428           },  
429          /*          /* run = 5 */
430             run = 3          {{0x13, 7}, {0x5a, 12}, {0x00, 0}},
431           */  
432          {          /* run = 6 */
433           {0x11, 7}, {0x24, 11}, {0x00, 0}          {{0x15, 8}, {0x5b, 12}, {0x00, 0}}
          },  
         /*  
            run = 4  
          */  
         {  
          {0x10, 7}, {0x25, 11}, {0x00, 0}  
          },  
         /*  
            run = 5  
          */  
         {  
          {0x13, 7}, {0x5a, 12}, {0x00, 0}  
          },  
         /*  
            run = 6  
          */  
         {  
          {0x15, 8}, {0x5b, 12}, {0x00, 0}  
          }  
434  };  };
435    
436  /* Coeffs for last = 1, run = 7 -> 20. Indexed by [run-7] */  /* Coeffs for last = 1, run = 7 -> 20. Indexed by [run-7] */
437    
438  static VLC coeff_tab10[14][1] = {  static VLC const coeff_tab10[14][1] = {
439          {{0x14, 8}}, {{0x13, 8}}, {{0x1a, 8}}, {{0x15, 9}},          {{0x14, 8}},
440          {{0x14, 9}}, {{0x13, 9}}, {{0x12, 9}}, {{0x11, 9}},          {{0x13, 8}},
441          {{0x26, 11}}, {{0x27, 11}}, {{0x5c, 12}}, {{0x5d, 12}},          {{0x1a, 8}},
442          {{0x5e, 12}}, {{0x5f, 12}}          {{0x15, 9}},
443            {{0x14, 9}},
444            {{0x13, 9}},
445            {{0x12, 9}},
446            {{0x11, 9}},
447            {{0x26, 11}},
448            {{0x27, 11}},
449            {{0x5c, 12}},
450            {{0x5d, 12}},
451            {{0x5e, 12}},
452            {{0x5f, 12}}
453  };  };
454    
455    
456  static VLC *coeff_intra_last0[15] = {  static VLC const *coeff_intra_last0[15] = {
457          coeff_tab4,          coeff_tab4,
458          coeff_tab5,          coeff_tab5,
459          coeff_tab6[0],          coeff_tab6[0],
# Line 540  Line 471 
471          coeff_tab7[4]          coeff_tab7[4]
472  };  };
473    
474  static VLC *coeff_intra_last1[21] = {  static VLC const *coeff_intra_last1[21] = {
475          coeff_tab8,          coeff_tab8,
476          coeff_tab9[0],          coeff_tab9[0],
477          coeff_tab9[1],          coeff_tab9[1],
# Line 564  Line 495 
495          coeff_tab10[13],          coeff_tab10[13],
496  };  };
497    
498  static VLC *coeff_inter_last0[27] = {  static VLC const *coeff_inter_last0[27] = {
499          coeff_tab0[0],          coeff_tab0[0],
500          coeff_tab0[1],          coeff_tab0[1],
501          coeff_tab1[0],          coeff_tab1[0],
# Line 594  Line 525 
525          coeff_tab1[24],          coeff_tab1[24],
526  };  };
527    
528  static VLC *coeff_inter_last1[42] = {  static VLC const *coeff_inter_last1[42] = {
529          coeff_tab2[0],          coeff_tab2[0],
530          coeff_tab2[1],          coeff_tab2[1],
531          coeff_tab3[0],          coeff_tab3[0],
# Line 639  Line 570 
570          coeff_tab3[39],          coeff_tab3[39],
571  };  };
572    
573  static VLC **coeff_vlc[4] = {  static VLC const **coeff_vlc[4] = {
574          coeff_intra_last0,          coeff_intra_last0,
575          coeff_intra_last1,          coeff_intra_last1,
576          coeff_inter_last0,          coeff_inter_last0,
577          coeff_inter_last1,          coeff_inter_last1,
578  };  };
579    
580  /* MCBPC Indexing by cbpc in first two bits, mode in last two.  /*
581   CBPC as in table 4/H.263, MB type (mode): 3 = 01, 4 = 10.   * MCBPC Indexing by cbpc in first two bits, mode in last two.
582   Example: cbpc = 01 and mode = 4 gives index = 0110 = 6. */   * CBPC as in table 4/H.263, MB type (mode): 3 = 01, 4 = 10.
583     * Example: cbpc = 01 and mode = 4 gives index = 0110 = 6.
584     */
585    
586  static VLC mcbpc_intra_tab[15] = {  static VLC const mcbpc_intra_tab[15] = {
587          {0x01, 9}, {0x01, 1}, {0x01, 4}, {0x00, 0},          {0x01, 9}, {0x01, 1}, {0x01, 4}, {0x00, 0},
588          {0x00, 0}, {0x01, 3}, {0x01, 6}, {0x00, 0},          {0x00, 0}, {0x01, 3}, {0x01, 6}, {0x00, 0},
589          {0x00, 0}, {0x02, 3}, {0x02, 6}, {0x00, 0},          {0x00, 0}, {0x02, 3}, {0x02, 6}, {0x00, 0},
# Line 660  Line 593 
593  /* MCBPC inter.  /* MCBPC inter.
594     Addressing: 5 bit ccmmm (cc = CBPC, mmm = mode (1-4 binary)) */     Addressing: 5 bit ccmmm (cc = CBPC, mmm = mode (1-4 binary)) */
595    
596  static VLC mcbpc_inter_tab[29] = {  static VLC const mcbpc_inter_tab[29] = {
597          {1, 1}, {3, 3}, {2, 3}, {3, 5}, {4, 6}, {1, 9}, {0, 0}, {0, 0},          {1, 1}, {3, 3}, {2, 3}, {3, 5}, {4, 6}, {1, 9}, {0, 0}, {0, 0},
598          {3, 4}, {7, 7}, {5, 7}, {4, 8}, {4, 9}, {0, 0}, {0, 0}, {0, 0},          {3, 4}, {7, 7}, {5, 7}, {4, 8}, {4, 9}, {0, 0}, {0, 0}, {0, 0},
599          {2, 4}, {6, 7}, {4, 7}, {3, 8}, {3, 9}, {0, 0}, {0, 0}, {0, 0},          {2, 4}, {6, 7}, {4, 7}, {3, 8}, {3, 9}, {0, 0}, {0, 0}, {0, 0},
600          {5, 6}, {5, 9}, {5, 8}, {3, 7}, {2, 9}          {5, 6}, {5, 9}, {5, 8}, {3, 7}, {2, 9}
601  };  };
602    
603  static const VLC cbpy_tab[16] = {  static VLC const cbpy_tab[16] = {
604          {3, 4}, {5, 5}, {4, 5}, {9, 4}, {3, 5}, {7, 4}, {2, 6}, {11, 4},          {3, 4}, {5, 5}, {4, 5}, {9, 4}, {3, 5}, {7, 4}, {2, 6}, {11, 4},
605          {2, 5}, {3, 6}, {5, 4}, {10, 4}, {4, 4}, {8, 4}, {6, 4}, {3, 2}          {2, 5}, {3, 6}, {5, 4}, {10, 4}, {4, 4}, {8, 4}, {6, 4}, {3, 2}
606  };  };
607    
608  static const VLC dcy_tab[511] = {  static VLC const dcy_tab[511] = {
609          {0x100, 15}, {0x101, 15}, {0x102, 15}, {0x103, 15},          {0x100, 15}, {0x101, 15}, {0x102, 15}, {0x103, 15},
610          {0x104, 15}, {0x105, 15}, {0x106, 15}, {0x107, 15},          {0x104, 15}, {0x105, 15}, {0x106, 15}, {0x107, 15},
611          {0x108, 15}, {0x109, 15}, {0x10a, 15}, {0x10b, 15},          {0x108, 15}, {0x109, 15}, {0x10a, 15}, {0x10b, 15},
# Line 803  Line 736 
736          {0x1fd, 15}, {0x1fe, 15}, {0x1ff, 15},          {0x1fd, 15}, {0x1fe, 15}, {0x1ff, 15},
737  };  };
738    
739  static const VLC dcc_tab[511] = {  static VLC const dcc_tab[511] = {
740          {0x100, 16}, {0x101, 16}, {0x102, 16}, {0x103, 16},          {0x100, 16}, {0x101, 16}, {0x102, 16}, {0x103, 16},
741          {0x104, 16}, {0x105, 16}, {0x106, 16}, {0x107, 16},          {0x104, 16}, {0x105, 16}, {0x106, 16}, {0x107, 16},
742          {0x108, 16}, {0x109, 16}, {0x10a, 16}, {0x10b, 16},          {0x108, 16}, {0x109, 16}, {0x10a, 16}, {0x10b, 16},
# Line 935  Line 868 
868  };  };
869    
870    
871  static const VLC mb_motion_table[65] = {  static VLC const mb_motion_table[65] = {
872          {0x05, 13}, {0x07, 13}, {0x05, 12}, {0x07, 12},          {0x05, 13}, {0x07, 13}, {0x05, 12}, {0x07, 12},
873          {0x09, 12}, {0x0b, 12}, {0x0d, 12}, {0x0f, 12},          {0x09, 12}, {0x0b, 12}, {0x0d, 12}, {0x0f, 12},
874          {0x09, 11}, {0x0b, 11}, {0x0d, 11}, {0x0f, 11},          {0x09, 11}, {0x0b, 11}, {0x0d, 11}, {0x0f, 11},
# Line 960  Line 893 
893   * decoder tables                                                 *   * decoder tables                                                 *
894   ******************************************************************/   ******************************************************************/
895    
896  static const VLC mcbpc_intra_table[64] = {  static VLC const mcbpc_intra_table[64] = {
897          {-1, 0},          {-1, 0}, {20, 6}, {36, 6}, {52, 6}, {4, 4},  {4, 4},  {4, 4},  {4, 4},
898          {20, 6}, {36, 6}, {52, 6}, {4, 4}, {4, 4}, {4, 4},          {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3},
899          {4, 4}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3},          {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3},
900          {19, 3}, {19, 3}, {19, 3}, {35, 3}, {35, 3}, {35, 3},          {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3},
901          {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {51, 3},          {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},
902          {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3},          {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},
903          {51, 3}, {3, 1},          {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},  {3, 1},
904          {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, 1},  
         {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1},  
         {3, 1}  
905  };  };
906    
907    
908  static const VLC mcbpc_inter_table[257] = {  static VLC const mcbpc_inter_table[257] = {
909          {VLC_ERROR, 0},          {VLC_ERROR, 0}, {255, 9}, {52, 9}, {36, 9}, {20, 9}, {49, 9}, {35, 8}, {35, 8},
910          {255, 9}, {52, 9}, {36, 9}, {20, 9}, {49, 9}, {35, 8}, {35, 8}, {19, 8},          {19, 8}, {19, 8}, {50, 8}, {50, 8}, {51, 7}, {51, 7}, {51, 7}, {51, 7},
911                  {19, 8},          {34, 7}, {34, 7}, {34, 7}, {34, 7}, {18, 7}, {18, 7}, {18, 7}, {18, 7},
912          {50, 8}, {50, 8}, {51, 7}, {51, 7}, {51, 7}, {51, 7}, {34, 7}, {34, 7},          {33, 7}, {33, 7}, {33, 7}, {33, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7},
913                  {34, 7},          {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6},
914          {34, 7}, {18, 7}, {18, 7}, {18, 7}, {18, 7}, {33, 7}, {33, 7}, {33, 7},          {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6},
915                  {33, 7},          {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5},
916          {17, 7}, {17, 7}, {17, 7}, {17, 7}, {4, 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},
917          {4, 6}, {4, 6}, {4, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48,          {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4},
                                                                                                                                                   6},  
         {48, 6}, {48, 6}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5},  
         {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5},  
918          {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4},          {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4},
                 {32, 4},  
919          {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4},          {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4},
                 {32, 4},  
920          {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4},          {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4},
                 {32, 4},  
         {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {16, 4}, {16, 4}, {16, 4},  
                 {16, 4},  
921          {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4},          {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4},
                 {16, 4},  
922          {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4},          {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4},
                 {16, 4},  
923          {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4},          {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4},
924                  {16, 4},          {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4},
925          {16, 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},
926          {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}, {2, 3},
927          {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}, {2, 3},
928          {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}, {2, 3},
929          {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}, {2, 3},
930          {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}, {2, 3},
931          {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}, {2, 3},
932          {2, 3}, {2, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3},          {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3},
933          {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},
934          {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},
935          {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},
936          {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},
937          {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},
938          {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},
939          {1, 3}, {1, 3}, {1, 3}, {0, 1}          {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3},
940            {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3},
941            {0, 1}
942  };  };
943    
944  static const VLC cbpy_table[64] = {  static VLC const cbpy_table[64] = {
945          {-1, 0}, {-1, 0}, {6, 6}, {9, 6}, {8, 5}, {8, 5}, {4, 5}, {4, 5},          {-1, 0}, {-1, 0}, {6, 6}, {9, 6}, {8, 5}, {8, 5}, {4, 5}, {4, 5},
946          {2, 5}, {2, 5}, {1, 5}, {1, 5}, {0, 4}, {0, 4}, {0, 4}, {0, 4},          {2, 5}, {2, 5}, {1, 5}, {1, 5}, {0, 4}, {0, 4}, {0, 4}, {0, 4},
947          {12, 4}, {12, 4}, {12, 4}, {12, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4},          {12, 4}, {12, 4}, {12, 4}, {12, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4},
948          {14, 4}, {14, 4}, {14, 4}, {14, 4}, {5, 4}, {5, 4}, {5, 4}, {5, 4},          {14, 4}, {14, 4}, {14, 4}, {14, 4}, {5, 4}, {5, 4}, {5, 4}, {5, 4},
949          {13, 4}, {13, 4}, {13, 4}, {13, 4}, {3, 4}, {3, 4}, {3, 4}, {3, 4},          {13, 4}, {13, 4}, {13, 4}, {13, 4}, {3, 4}, {3, 4}, {3, 4}, {3, 4},
950          {11, 4}, {11, 4}, {11, 4}, {11, 4}, {7, 4}, {7, 4}, {7, 4}, {7, 4},          {11, 4}, {11, 4}, {11, 4}, {11, 4}, {7, 4}, {7, 4}, {7, 4}, {7, 4},
951          {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2},          {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2},
952          {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2},          {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}
953          {15, 2}, {15, 2}  };
954  };  
955    
956    static VLC const TMNMVtab0[] = {
957  VLC TMNMVtab0[] = {          {3, 4}, {-3, 4}, {2, 3}, {2, 3}, {-2, 3}, {-2, 3}, {1, 2},
958          {3, 4}, {-3, 4}, {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}
959                  {1, 2},  };
960          {-1, 2}, {-1, 2}, {-1, 2}, {-1, 2}  
961  };  static VLC const TMNMVtab1[] = {
962            {12, 10}, {-12, 10}, {11, 10}, {-11, 10},
963  VLC TMNMVtab1[] = {          {10, 9}, {10, 9}, {-10, 9}, {-10, 9},
964          {12, 10}, {-12, 10}, {11, 10}, {-11, 10}, {10, 9}, {10, 9}, {-10, 9}, {-10,          {9, 9}, {9, 9}, {-9, 9}, {-9, 9},
965                                                                                                                                                     9},          {8, 9}, {8, 9}, {-8, 9}, {-8, 9},
966          {9, 9}, {9, 9}, {-9, 9}, {-9, 9}, {8, 9}, {8, 9}, {-8, 9}, {-8, 9}, {7, 7},          {7, 7}, {7, 7}, {7, 7}, {7, 7},
967                  {7, 7},          {7, 7}, {7, 7}, {7, 7}, {7, 7},
968          {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {7, 7}, {-7, 7}, {-7, 7}, {-7, 7},          {-7, 7}, {-7, 7}, {-7, 7}, {-7, 7},
969                  {-7, 7},          {-7, 7}, {-7, 7}, {-7, 7}, {-7, 7},
970          {-7, 7}, {-7, 7}, {-7, 7}, {-7, 7}, {6, 7}, {6, 7}, {6, 7}, {6, 7}, {6, 7},          {6, 7}, {6, 7}, {6, 7}, {6, 7},
971                  {6, 7},          {6, 7}, {6, 7}, {6, 7}, {6, 7},
972          {6, 7}, {6, 7}, {-6, 7}, {-6, 7}, {-6, 7}, {-6, 7}, {-6, 7}, {-6, 7}, {-6,          {-6, 7}, {-6, 7}, {-6, 7}, {-6, 7},
973                                                                                                                                                     7},          {-6, 7}, {-6, 7}, {-6, 7}, {-6, 7},
974          {-6, 7}, {5, 7}, {5, 7}, {5, 7}, {5, 7}, {5, 7}, {5, 7}, {5, 7}, {5, 7},          {5, 7}, {5, 7}, {5, 7}, {5, 7},
975                  {-5, 7},          {5, 7}, {5, 7}, {5, 7}, {5, 7},
976          {-5, 7}, {-5, 7}, {-5, 7}, {-5, 7}, {-5, 7}, {-5, 7}, {-5, 7}, {4, 6}, {4,          {-5, 7}, {-5, 7}, {-5, 7}, {-5, 7},
977                                                                                                                                                          6},          {-5, 7}, {-5, 7}, {-5, 7}, {-5, 7},
978                  {4, 6},          {4, 6}, {4, 6}, {4, 6}, {4, 6},
979          {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4,          {4, 6}, {4, 6}, {4, 6}, {4, 6},
980                                                                                                                                                           6},          {4, 6}, {4, 6}, {4, 6}, {4, 6},
981                  {4, 6},          {4, 6}, {4, 6}, {4, 6}, {4, 6},
982          {4, 6}, {4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, {-4,          {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6},
983                                                                                                                                                     6},          {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6},
984          {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6},          {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6},
985                  {-4, 6}          {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}
986  };  };
987    
988  VLC TMNMVtab2[] = {  static VLC const TMNMVtab2[] = {
989          {32, 12}, {-32, 12}, {31, 12}, {-31, 12}, {30, 11}, {30, 11}, {-30, 11},          {32, 12}, {-32, 12}, {31, 12}, {-31, 12},
990                  {-30, 11},          {30, 11}, {30, 11}, {-30, 11}, {-30, 11},
991          {29, 11}, {29, 11}, {-29, 11}, {-29, 11}, {28, 11}, {28, 11}, {-28, 11},          {29, 11}, {29, 11}, {-29, 11}, {-29, 11},
992                  {-28, 11},          {28, 11}, {28, 11}, {-28, 11}, {-28, 11},
993          {27, 11}, {27, 11}, {-27, 11}, {-27, 11}, {26, 11}, {26, 11}, {-26, 11},          {27, 11}, {27, 11}, {-27, 11}, {-27, 11},
994                  {-26, 11},          {26, 11}, {26, 11}, {-26, 11}, {-26, 11},
995          {25, 11}, {25, 11}, {-25, 11}, {-25, 11}, {24, 10}, {24, 10}, {24, 10},          {25, 11}, {25, 11}, {-25, 11}, {-25, 11},
996                  {24, 10},          {24, 10}, {24, 10}, {24, 10}, {24, 10},
997          {-24, 10}, {-24, 10}, {-24, 10}, {-24, 10}, {23, 10}, {23, 10}, {23, 10},          {-24, 10}, {-24, 10}, {-24, 10}, {-24, 10},
998                  {23, 10},          {23, 10}, {23, 10}, {23, 10}, {23, 10},
999          {-23, 10}, {-23, 10}, {-23, 10}, {-23, 10}, {22, 10}, {22, 10}, {22, 10},          {-23, 10}, {-23, 10}, {-23, 10}, {-23, 10},
1000                  {22, 10},          {22, 10}, {22, 10}, {22, 10}, {22, 10},
1001          {-22, 10}, {-22, 10}, {-22, 10}, {-22, 10}, {21, 10}, {21, 10}, {21, 10},          {-22, 10}, {-22, 10}, {-22, 10}, {-22, 10},
1002                  {21, 10},          {21, 10}, {21, 10}, {21, 10}, {21, 10},
1003          {-21, 10}, {-21, 10}, {-21, 10}, {-21, 10}, {20, 10}, {20, 10}, {20, 10},          {-21, 10}, {-21, 10}, {-21, 10}, {-21, 10},
1004                  {20, 10},          {20, 10}, {20, 10}, {20, 10}, {20, 10},
1005          {-20, 10}, {-20, 10}, {-20, 10}, {-20, 10}, {19, 10}, {19, 10}, {19, 10},          {-20, 10}, {-20, 10}, {-20, 10}, {-20, 10},
1006                  {19, 10},          {19, 10}, {19, 10}, {19, 10}, {19, 10},
1007          {-19, 10}, {-19, 10}, {-19, 10}, {-19, 10}, {18, 10}, {18, 10}, {18, 10},          {-19, 10}, {-19, 10}, {-19, 10}, {-19, 10},
1008                  {18, 10},          {18, 10}, {18, 10}, {18, 10}, {18, 10},
1009          {-18, 10}, {-18, 10}, {-18, 10}, {-18, 10}, {17, 10}, {17, 10}, {17, 10},          {-18, 10}, {-18, 10}, {-18, 10}, {-18, 10},
1010                  {17, 10},          {17, 10}, {17, 10}, {17, 10}, {17, 10},
1011          {-17, 10}, {-17, 10}, {-17, 10}, {-17, 10}, {16, 10}, {16, 10}, {16, 10},          {-17, 10}, {-17, 10}, {-17, 10}, {-17, 10},
1012                  {16, 10},          {16, 10}, {16, 10}, {16, 10}, {16, 10},
1013          {-16, 10}, {-16, 10}, {-16, 10}, {-16, 10}, {15, 10}, {15, 10}, {15, 10},          {-16, 10}, {-16, 10}, {-16, 10}, {-16, 10},
1014                  {15, 10},          {15, 10}, {15, 10}, {15, 10}, {15, 10},
1015          {-15, 10}, {-15, 10}, {-15, 10}, {-15, 10}, {14, 10}, {14, 10}, {14, 10},          {-15, 10}, {-15, 10}, {-15, 10}, {-15, 10},
1016                  {14, 10},          {14, 10}, {14, 10}, {14, 10}, {14, 10},
1017          {-14, 10}, {-14, 10}, {-14, 10}, {-14, 10}, {13, 10}, {13, 10}, {13, 10},          {-14, 10}, {-14, 10}, {-14, 10}, {-14, 10},
1018                  {13, 10},          {13, 10}, {13, 10}, {13, 10}, {13, 10},
1019          {-13, 10}, {-13, 10}, {-13, 10}, {-13, 10}          {-13, 10}, {-13, 10}, {-13, 10}, {-13, 10}
1020  };  };
1021    
1022    
1023  VLC DCT3Dtab0[] = {  static VLC const DCT3Dtab0[] = {
1024          {4225, 7}, {4209, 7}, {4193, 7}, {4177, 7}, {193, 7}, {177, 7},          {4225, 7}, {4209, 7}, {4193, 7}, {4177, 7}, {193, 7}, {177, 7},
1025          {161, 7}, {4, 7}, {4161, 6}, {4161, 6}, {4145, 6}, {4145, 6},          {161, 7}, {4, 7}, {4161, 6}, {4161, 6}, {4145, 6}, {4145, 6},
1026          {4129, 6}, {4129, 6}, {4113, 6}, {4113, 6}, {145, 6}, {145, 6},          {4129, 6}, {4129, 6}, {4113, 6}, {4113, 6}, {145, 6}, {145, 6},
# Line 1123  Line 1043 
1043  };  };
1044    
1045    
1046  VLC DCT3Dtab1[] = {  static VLC const DCT3Dtab1[] = {
1047          {9, 10}, {8, 10}, {4481, 9}, {4481, 9}, {4465, 9}, {4465, 9},          {9, 10}, {8, 10}, {4481, 9}, {4481, 9}, {4465, 9}, {4465, 9},
1048          {4449, 9}, {4449, 9}, {4433, 9}, {4433, 9}, {4417, 9}, {4417, 9},          {4449, 9}, {4449, 9}, {4433, 9}, {4433, 9}, {4417, 9}, {4417, 9},
1049          {4401, 9}, {4401, 9}, {4385, 9}, {4385, 9}, {4369, 9}, {4369, 9},          {4401, 9}, {4401, 9}, {4385, 9}, {4385, 9}, {4369, 9}, {4369, 9},
# Line 1142  Line 1062 
1062          {19, 8}, {19, 8}, {5, 8}, {5, 8}, {5, 8}, {5, 8}          {19, 8}, {19, 8}, {5, 8}, {5, 8}, {5, 8}, {5, 8}
1063  };  };
1064    
1065  VLC DCT3Dtab2[] = {  static VLC const DCT3Dtab2[] = {
1066          {4114, 11}, {4114, 11}, {4099, 11}, {4099, 11}, {11, 11}, {11, 11},          {4114, 11}, {4114, 11}, {4099, 11}, {4099, 11}, {11, 11}, {11, 11},
1067          {10, 11}, {10, 11}, {4545, 10}, {4545, 10}, {4545, 10}, {4545, 10},          {10, 11}, {10, 11}, {4545, 10}, {4545, 10}, {4545, 10}, {4545, 10},
1068          {4529, 10}, {4529, 10}, {4529, 10}, {4529, 10}, {4513, 10}, {4513, 10},          {4529, 10}, {4529, 10}, {4529, 10}, {4529, 10}, {4513, 10}, {4513, 10},
# Line 1169  Line 1089 
1089    
1090  /* New tables for Intra luminance blocks */  /* New tables for Intra luminance blocks */
1091    
1092  VLC DCT3Dtab3[] = {  static VLC const DCT3Dtab3[] = {
1093          {0x10401, 7}, {0x10301, 7}, {0x00601, 7}, {0x10501, 7},          {0x10401, 7}, {0x10301, 7}, {0x00601, 7}, {0x10501, 7},
1094          {0x00701, 7}, {0x00202, 7}, {0x00103, 7}, {0x00009, 7},          {0x00701, 7}, {0x00202, 7}, {0x00103, 7}, {0x00009, 7},
1095          {0x10002, 6}, {0x10002, 6}, {0x00501, 6}, {0x00501, 6},          {0x10002, 6}, {0x10002, 6}, {0x00501, 6}, {0x00501, 6},
# Line 1201  Line 1121 
1121  };  };
1122    
1123    
1124  VLC DCT3Dtab4[] = {  static VLC const DCT3Dtab4[] = {
1125          {0x00012, 10}, {0x00011, 10}, {0x10e01, 9}, {0x10e01, 9},          {0x00012, 10}, {0x00011, 10}, {0x10e01, 9}, {0x10e01, 9},
1126          {0x10d01, 9}, {0x10d01, 9}, {0x10c01, 9}, {0x10c01, 9},          {0x10d01, 9}, {0x10d01, 9}, {0x10c01, 9}, {0x10c01, 9},
1127          {0x10b01, 9}, {0x10b01, 9}, {0x10a01, 9}, {0x10a01, 9},          {0x10b01, 9}, {0x10b01, 9}, {0x10a01, 9}, {0x10a01, 9},
# Line 1228  Line 1148 
1148          {0x0000a, 8}, {0x0000a, 8}, {0x0000a, 8}, {0x0000a, 8}          {0x0000a, 8}, {0x0000a, 8}, {0x0000a, 8}, {0x0000a, 8}
1149  };  };
1150    
1151  VLC DCT3Dtab5[] = {  static VLC const DCT3Dtab5[] = {
1152          {0x10007, 11}, {0x10007, 11}, {0x10006, 11}, {0x10006, 11},          {0x10007, 11}, {0x10007, 11}, {0x10006, 11}, {0x10006, 11},
1153          {0x00016, 11}, {0x00016, 11}, {0x00015, 11}, {0x00015, 11},          {0x00016, 11}, {0x00016, 11}, {0x00015, 11}, {0x00015, 11},
1154          {0x10202, 10}, {0x10202, 10}, {0x10202, 10}, {0x10202, 10},          {0x10202, 10}, {0x10202, 10}, {0x10202, 10}, {0x10202, 10},
# Line 1261  Line 1181 
1181          {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}          {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}
1182  };  };
1183    
1184  VLC ERRtab[] = {  static short const dc_threshold[] = {
1185            26708,   29545,   25120,   28265,   29281,    8313,   29557,   29541,
1186            18208,   21838,   18208,   19536,   29472,   26223,   30580,   29281,
1187             8293,   25956,   26994,   25974,    8292,   29286,   28015,   22560,
1188            18774,    8260,   20557,   18245,    8244,   26664,   29812,   14960,
1189            12079,   30583,   11895,   30328,   25705,   28462,   26482,   29472,
1190            30063,   25458,   29541,    8233,   29505,    8299,   28518,    8306,
1191            26740,    8293,   28531,   29301,   25955,    8307,   28532,   31008,
1192            30063,    8306,   26980,   29811,   26994,   30050,   28532,    2674
1193    };
1194    
1195    
1196    static VLC const ERRtab[] = {
1197          {VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0},          {VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0},
1198          {VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0},          {VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0},
1199          {VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0},          {VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0},
# Line 1269  Line 1201 
1201          {VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0}          {VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0}
1202  };  };
1203    
1204  static const VLC dc_lum_tab[] = {  static VLC const dc_lum_tab[] = {
1205          {0, 0},          {0, 0}, {4, 3}, {3, 3}, {0, 3},
         {4, 3}, {3, 3}, {0, 3},  
1206          {2, 2}, {2, 2}, {1, 2}, {1, 2},          {2, 2}, {2, 2}, {1, 2}, {1, 2},
1207  };  };
1208    
 static __inline int  
 get_coeff(Bitstream * bs,  
                   int *run,  
                   int *last,  
                   int intra,  
                   int short_video_header)  
 {  
   
         uint32_t mode;  
         const VLC *tab;  
         int32_t level;  
   
         if (short_video_header)         // inter-VLCs will be used for both intra and inter blocks  
                 intra = 0;  
   
         tab = &DCT3D[intra][BitstreamShowBits(bs, 12)];  
   
         if (tab->code == -1)  
                 goto error;  
   
         BitstreamSkip(bs, tab->len);  
   
         if (tab->code != ESCAPE) {  
                 if (!intra) {  
                         *run = (tab->code >> 4) & 255;  
                         level = tab->code & 15;  
                         *last = (tab->code >> 12) & 1;  
                 } else {  
                         *run = (tab->code >> 8) & 255;  
                         level = tab->code & 255;  
                         *last = (tab->code >> 16) & 1;  
                 }  
                 return BitstreamGetBit(bs) ? -level : level;  
         }  
   
         if (short_video_header) {  
                 // escape mode 4 - H.263 type, only used if short_video_header = 1  
                 *last = BitstreamGetBit(bs);  
                 *run = BitstreamGetBits(bs, 6);  
                 level = BitstreamGetBits(bs, 8);  
   
                 if (level == 0 || level == 128)  
                         DPRINTF(DPRINTF_ERROR,"Illegal LEVEL for ESCAPE mode 4: %i", level);  
   
                 return (level >= 128 ? -(256 - level) : level);  
         }  
   
         mode = BitstreamShowBits(bs, 2);  
   
         if (mode < 3) {  
                 BitstreamSkip(bs, (mode == 2) ? 2 : 1);  
   
                 tab = &DCT3D[intra][BitstreamShowBits(bs, 12)];  
                 if (tab->code == -1)  
                         goto error;  
   
                 BitstreamSkip(bs, tab->len);  
   
                 if (!intra) {  
                         *run = (tab->code >> 4) & 255;  
                         level = tab->code & 15;  
                         *last = (tab->code >> 12) & 1;  
                 } else {  
                         *run = (tab->code >> 8) & 255;  
                         level = tab->code & 255;  
                         *last = (tab->code >> 16) & 1;  
                 }  
   
                 if (mode < 2)                   // first escape mode, level is offset  
                         level += max_level[*last + (!intra << 1)][*run];        // need to add back the max level  
                 else if (mode == 2)             // second escape mode, run is offset  
                         *run += max_run[*last + (!intra << 1)][level] + 1;  
   
                 return BitstreamGetBit(bs) ? -level : level;  
         }  
         // third escape mode - fixed length codes  
         BitstreamSkip(bs, 2);  
         *last = BitstreamGetBits(bs, 1);  
         *run = BitstreamGetBits(bs, 6);  
         BitstreamSkip(bs, 1);           // marker  
         level = BitstreamGetBits(bs, 12);  
         BitstreamSkip(bs, 1);           // marker  
   
         return (level & 0x800) ? (level | (-1 ^ 0xfff)) : level;  
   
   error:  
         *run = VLC_ERROR;  
         return 0;  
   
 }  
   
1209  #endif                                                  /* _VLC_CODES_H */  #endif                                                  /* _VLC_CODES_H */
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