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/***************************************************************************** |
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* |
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* XVID MPEG-4 VIDEO CODEC |
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* - Vector Length Coding tables - |
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* |
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* Copyright(C) 2002 Michael Militzer |
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* |
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* |
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* This program is an implementation of a part of one or more MPEG-4 |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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* to use this software module in hardware or software products are |
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* advised that its use may infringe existing patents or copyrights, and |
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* any such use would be at such party's own risk. The original |
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* developer of this software module and his/her company, and subsequent |
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* editors and their companies, will have no liability for use of this |
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* software or modifications or derivatives thereof. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program 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 |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; 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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* $Id$ |
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* |
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****************************************************************************/ |
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#ifndef _VLC_CODES_H_ |
#ifndef _VLC_CODES_H_ |
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#define _VLC_CODES_H_ |
#define _VLC_CODES_H_ |
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#include "mbcoding.h" |
#include "mbcoding.h" |
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#define VLC_ERROR (-1) |
#define VLC_ERROR (-1) |
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#define ESCAPE 7167 |
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#define ESCAPE 3 |
/***************************************************************************** |
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#define ESCAPE1 6 |
* The Vector Length Coding structure |
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#define ESCAPE2 14 |
****************************************************************************/ |
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#define ESCAPE3 15 |
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typedef struct |
typedef struct |
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{ |
{ |
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uint32_t code; |
uint32_t code; |
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uint8_t len; |
int8_t len; |
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} |
} |
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VLC; |
VLC; |
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typedef struct |
static VLC *DCT3D[2]; |
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{ |
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uint8_t last; |
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uint8_t run; |
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int8_t level; |
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} |
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EVENT; |
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typedef struct |
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{ |
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uint8_t len; |
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EVENT event; |
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} |
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REVERSE_EVENT; |
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typedef struct |
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{ |
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VLC vlc; |
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EVENT event; |
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} |
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VLC_TABLE; |
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/****************************************************************** |
/***************************************************************************** |
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* common tables between encoder/decoder * |
* common tables between encoder/decoder |
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******************************************************************/ |
****************************************************************************/ |
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static VLC_TABLE const coeff_tab[2][102] = |
/* constants taken from momusys/vm_common/inlcude/max_level.h */ |
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{ |
static char max_level[4][64] = { |
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/* intra = 0 */ |
/* intra, last = 0 */ |
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{ |
{ |
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{{ 2, 2}, {0, 0, 1}}, |
27, 10, 5, 4, 3, 3, 3, 3, |
68 |
{{15, 4}, {0, 0, 2}}, |
2, 2, 1, 1, 1, 1, 1, 0, |
69 |
{{21, 6}, {0, 0, 3}}, |
0, 0, 0, 0, 0, 0, 0, 0, |
70 |
{{23, 7}, {0, 0, 4}}, |
0, 0, 0, 0, 0, 0, 0, 0, |
71 |
{{31, 8}, {0, 0, 5}}, |
0, 0, 0, 0, 0, 0, 0, 0, |
72 |
{{37, 9}, {0, 0, 6}}, |
0, 0, 0, 0, 0, 0, 0, 0, |
73 |
{{36, 9}, {0, 0, 7}}, |
0, 0, 0, 0, 0, 0, 0, 0, |
74 |
{{33, 10}, {0, 0, 8}}, |
0, 0, 0, 0, 0, 0, 0, 0 |
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{{32, 10}, {0, 0, 9}}, |
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{{ 7, 11}, {0, 0, 10}}, |
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{{ 6, 11}, {0, 0, 11}}, |
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{{32, 11}, {0, 0, 12}}, |
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{{ 6, 3}, {0, 1, 1}}, |
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{{20, 6}, {0, 1, 2}}, |
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{{30, 8}, {0, 1, 3}}, |
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{{15, 10}, {0, 1, 4}}, |
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{{33, 11}, {0, 1, 5}}, |
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{{80, 12}, {0, 1, 6}}, |
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{{14, 4}, {0, 2, 1}}, |
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{{29, 8}, {0, 2, 2}}, |
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{{14, 10}, {0, 2, 3}}, |
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{{81, 12}, {0, 2, 4}}, |
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{{13, 5}, {0, 3, 1}}, |
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{{35, 9}, {0, 3, 2}}, |
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{{13, 10}, {0, 3, 3}}, |
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{{12, 5}, {0, 4, 1}}, |
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{{34, 9}, {0, 4, 2}}, |
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{{82, 12}, {0, 4, 3}}, |
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{{11, 5}, {0, 5, 1}}, |
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{{12, 10}, {0, 5, 2}}, |
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{{83, 12}, {0, 5, 3}}, |
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{{19, 6}, {0, 6, 1}}, |
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{{11, 10}, {0, 6, 2}}, |
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{{84, 12}, {0, 6, 3}}, |
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{{18, 6}, {0, 7, 1}}, |
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{{10, 10}, {0, 7, 2}}, |
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{{17, 6}, {0, 8, 1}}, |
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{{ 9, 10}, {0, 8, 2}}, |
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{{16, 6}, {0, 9, 1}}, |
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{{ 8, 10}, {0, 9, 2}}, |
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{{22, 7}, {0, 10, 1}}, |
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{{85, 12}, {0, 10, 2}}, |
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{{21, 7}, {0, 11, 1}}, |
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{{20, 7}, {0, 12, 1}}, |
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{{28, 8}, {0, 13, 1}}, |
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{{27, 8}, {0, 14, 1}}, |
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{{33, 9}, {0, 15, 1}}, |
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{{32, 9}, {0, 16, 1}}, |
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{{31, 9}, {0, 17, 1}}, |
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{{30, 9}, {0, 18, 1}}, |
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{{29, 9}, {0, 19, 1}}, |
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{{28, 9}, {0, 20, 1}}, |
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{{27, 9}, {0, 21, 1}}, |
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{{26, 9}, {0, 22, 1}}, |
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{{34, 11}, {0, 23, 1}}, |
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{{35, 11}, {0, 24, 1}}, |
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{{86, 12}, {0, 25, 1}}, |
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{{87, 12}, {0, 26, 1}}, |
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{{ 7, 4}, {1, 0, 1}}, |
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{{25, 9}, {1, 0, 2}}, |
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{{ 5, 11}, {1, 0, 3}}, |
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{{15, 6}, {1, 1, 1}}, |
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{{ 4, 11}, {1, 1, 2}}, |
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{{14, 6}, {1, 2, 1}}, |
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{{13, 6}, {1, 3, 1}}, |
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{{12, 6}, {1, 4, 1}}, |
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{{19, 7}, {1, 5, 1}}, |
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{{18, 7}, {1, 6, 1}}, |
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{{17, 7}, {1, 7, 1}}, |
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{{16, 7}, {1, 8, 1}}, |
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{{26, 8}, {1, 9, 1}}, |
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{{25, 8}, {1, 10, 1}}, |
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{{24, 8}, {1, 11, 1}}, |
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{{23, 8}, {1, 12, 1}}, |
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{{22, 8}, {1, 13, 1}}, |
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{{21, 8}, {1, 14, 1}}, |
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{{20, 8}, {1, 15, 1}}, |
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{{19, 8}, {1, 16, 1}}, |
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{{24, 9}, {1, 17, 1}}, |
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{{23, 9}, {1, 18, 1}}, |
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{{22, 9}, {1, 19, 1}}, |
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{{21, 9}, {1, 20, 1}}, |
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{{20, 9}, {1, 21, 1}}, |
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{{19, 9}, {1, 22, 1}}, |
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{{18, 9}, {1, 23, 1}}, |
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{{17, 9}, {1, 24, 1}}, |
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{{ 7, 10}, {1, 25, 1}}, |
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{{ 6, 10}, {1, 26, 1}}, |
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{{ 5, 10}, {1, 27, 1}}, |
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{{ 4, 10}, {1, 28, 1}}, |
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{{36, 11}, {1, 29, 1}}, |
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{{37, 11}, {1, 30, 1}}, |
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{{38, 11}, {1, 31, 1}}, |
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{{39, 11}, {1, 32, 1}}, |
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{{88, 12}, {1, 33, 1}}, |
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{{89, 12}, {1, 34, 1}}, |
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{{90, 12}, {1, 35, 1}}, |
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{{91, 12}, {1, 36, 1}}, |
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{{92, 12}, {1, 37, 1}}, |
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{{93, 12}, {1, 38, 1}}, |
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{{94, 12}, {1, 39, 1}}, |
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{{95, 12}, {1, 40, 1}} |
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}, |
}, |
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/* intra = 1 */ |
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{ |
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{{ 2, 2}, {0, 0, 1}}, |
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{{15, 4}, {0, 0, 3}}, |
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{{21, 6}, {0, 0, 6}}, |
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{{23, 7}, {0, 0, 9}}, |
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{{31, 8}, {0, 0, 10}}, |
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{{37, 9}, {0, 0, 13}}, |
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{{36, 9}, {0, 0, 14}}, |
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{{33, 10}, {0, 0, 17}}, |
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{{32, 10}, {0, 0, 18}}, |
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{{ 7, 11}, {0, 0, 21}}, |
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{{ 6, 11}, {0, 0, 22}}, |
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{{32, 11}, {0, 0, 23}}, |
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{{ 6, 3}, {0, 0, 2}}, |
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{{20, 6}, {0, 1, 2}}, |
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{{30, 8}, {0, 0, 11}}, |
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{{15, 10}, {0, 0, 19}}, |
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{{33, 11}, {0, 0, 24}}, |
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{{80, 12}, {0, 0, 25}}, |
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{{14, 4}, {0, 1, 1}}, |
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{{29, 8}, {0, 0, 12}}, |
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{{14, 10}, {0, 0, 20}}, |
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{{81, 12}, {0, 0, 26}}, |
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{{13, 5}, {0, 0, 4}}, |
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{{35, 9}, {0, 0, 15}}, |
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{{13, 10}, {0, 1, 7}}, |
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{{12, 5}, {0, 0, 5}}, |
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{{34, 9}, {0, 4, 2}}, |
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{{82, 12}, {0, 0, 27}}, |
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{{11, 5}, {0, 2, 1}}, |
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{{12, 10}, {0, 2, 4}}, |
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{{83, 12}, {0, 1, 9}}, |
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{{19, 6}, {0, 0, 7}}, |
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{{11, 10}, {0, 3, 4}}, |
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{{84, 12}, {0, 6, 3}}, |
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{{18, 6}, {0, 0, 8}}, |
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{{10, 10}, {0, 4, 3}}, |
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{{17, 6}, {0, 3, 1}}, |
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{{ 9, 10}, {0, 8, 2}}, |
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{{16, 6}, {0, 4, 1}}, |
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{{ 8, 10}, {0, 5, 3}}, |
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{{22, 7}, {0, 1, 3}}, |
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{{85, 12}, {0, 1, 10}}, |
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{{21, 7}, {0, 2, 2}}, |
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{{20, 7}, {0, 7, 1}}, |
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{{28, 8}, {0, 1, 4}}, |
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{{27, 8}, {0, 3, 2}}, |
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{{33, 9}, {0, 0, 16}}, |
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{{32, 9}, {0, 1, 5}}, |
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{{31, 9}, {0, 1, 6}}, |
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{{30, 9}, {0, 2, 3}}, |
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{{29, 9}, {0, 3, 3}}, |
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{{28, 9}, {0, 5, 2}}, |
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{{27, 9}, {0, 6, 2}}, |
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{{26, 9}, {0, 7, 2}}, |
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{{34, 11}, {0, 1, 8}}, |
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{{35, 11}, {0, 9, 2}}, |
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{{86, 12}, {0, 2, 5}}, |
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{{87, 12}, {0, 7, 3}}, |
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{{ 7, 4}, {1, 0, 1}}, |
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{{25, 9}, {0, 11, 1}}, |
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{{ 5, 11}, {1, 0, 6}}, |
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{{15, 6}, {1, 1, 1}}, |
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{{ 4, 11}, {1, 0, 7}}, |
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{{14, 6}, {1, 2, 1}}, |
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{{13, 6}, {0, 5, 1}}, |
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{{12, 6}, {1, 0, 2}}, |
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{{19, 7}, {1, 5, 1}}, |
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{{18, 7}, {0, 6, 1}}, |
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{{17, 7}, {1, 3, 1}}, |
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{{16, 7}, {1, 4, 1}}, |
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{{26, 8}, {1, 9, 1}}, |
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{{25, 8}, {0, 8, 1}}, |
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{{24, 8}, {0, 9, 1}}, |
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{{23, 8}, {0, 10, 1}}, |
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{{22, 8}, {1, 0, 3}}, |
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{{21, 8}, {1, 6, 1}}, |
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{{20, 8}, {1, 7, 1}}, |
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{{19, 8}, {1, 8, 1}}, |
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{{24, 9}, {0, 12, 1}}, |
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{{23, 9}, {1, 0, 4}}, |
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{{22, 9}, {1, 1, 2}}, |
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{{21, 9}, {1, 10, 1}}, |
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{{20, 9}, {1, 11, 1}}, |
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{{19, 9}, {1, 12, 1}}, |
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{{18, 9}, {1, 13, 1}}, |
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{{17, 9}, {1, 14, 1}}, |
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{{ 7, 10}, {0, 13, 1}}, |
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{{ 6, 10}, {1, 0, 5}}, |
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{{ 5, 10}, {1, 1, 3}}, |
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{{ 4, 10}, {1, 2, 2}}, |
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{{36, 11}, {1, 3, 2}}, |
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{{37, 11}, {1, 4, 2}}, |
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{{38, 11}, {1, 15, 1}}, |
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{{39, 11}, {1, 16, 1}}, |
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{{88, 12}, {0, 14, 1}}, |
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{{89, 12}, {1, 0, 8}}, |
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{{90, 12}, {1, 5, 2}}, |
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{{91, 12}, {1, 6, 2}}, |
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{{92, 12}, {1, 17, 1}}, |
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{{93, 12}, {1, 18, 1}}, |
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{{94, 12}, {1, 19, 1}}, |
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{{95, 12}, {1, 20, 1}} |
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} |
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}; |
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/* constants taken from momusys/vm_common/inlcude/max_level.h */ |
/* intra, last = 1 */ |
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static uint8_t const max_level[2][2][64] = { |
|
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{ |
{ |
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/* intra = 0, last = 0 */ |
8, 3, 2, 2, 2, 2, 2, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
84 |
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0, 0, 0, 0, 0, 0, 0, 0, |
85 |
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0, 0, 0, 0, 0, 0, 0, 0, |
86 |
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0, 0, 0, 0, 0, 0, 0, 0 |
87 |
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}, |
88 |
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89 |
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/* 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, |
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 |
/* intra = 0, last = 1 */ |
|
101 |
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/* 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, |
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 |
/* intra = 1, last = 0 */ |
static char max_run[4][256] = { |
115 |
|
/* intra, last = 0 */ |
116 |
{ |
{ |
117 |
27, 10, 5, 4, 3, 3, 3, 3, |
0, 14, 9, 7, 3, 2, 1, 1, |
118 |
2, 2, 1, 1, 1, 1, 1, 0, |
1, 1, 1, 0, 0, 0, 0, 0, |
119 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
120 |
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0, 0, 0, 0, 0, 0, 0, 0, |
121 |
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0, 0, 0, 0, 0, 0, 0, 0, |
122 |
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0, 0, 0, 0, 0, 0, 0, 0, |
123 |
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0, 0, 0, 0, 0, 0, 0, 0, |
124 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
125 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
126 |
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0, 0, 0, 0, 0, 0, 0, 0, |
127 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
128 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
129 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
130 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
131 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
132 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
133 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
134 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
135 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
136 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
137 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
138 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
139 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
140 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
141 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
142 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
143 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
144 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
145 |
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 |
/* intra = 1, last = 1 */ |
|
151 |
|
/* intra, last = 1 */ |
152 |
{ |
{ |
153 |
8, 3, 2, 2, 2, 2, 2, 1, |
0, 20, 6, 1, 0, 0, 0, 0, |
154 |
1, 1, 1, 1, 1, 1, 1, 1, |
0, 0, 0, 0, 0, 0, 0, 0, |
155 |
1, 1, 1, 1, 1, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
156 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
157 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
158 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
159 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
160 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
161 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
162 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
163 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
164 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
165 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
166 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
167 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
168 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
169 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
170 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
171 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
172 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
173 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
174 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
175 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
176 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
177 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
178 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
179 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
180 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
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 |
static uint8_t const max_run[2][2][64] = { |
/* inter, last = 0 */ |
|
{ |
|
|
/* intra = 0, 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, |
194 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
195 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
196 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
197 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
198 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
199 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
200 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
201 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
202 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
203 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
204 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
205 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
206 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
207 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
208 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
209 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
210 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
211 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
212 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
213 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
214 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
215 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
216 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
217 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
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 |
}, |
}, |
222 |
/* intra = 0, last = 1 */ |
|
223 |
|
/* 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, |
230 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
231 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
232 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
|
} |
|
|
}, |
|
|
{ |
|
|
/* intra = 1, last = 0 */ |
|
|
{ |
|
|
0, 14, 9, 7, 3, 2, 1, 1, |
|
|
1, 1, 1, 0, 0, 0, 0, 0, |
|
233 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
234 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
235 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
236 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
237 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
238 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
|
}, |
|
|
/* intra = 1, last = 1 */ |
|
|
{ |
|
|
0, 20, 6, 1, 0, 0, 0, 0, |
|
239 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
240 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
241 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
243 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
244 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
245 |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
246 |
} |
0, 0, 0, 0, 0, 0, 0, 0, |
247 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
248 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
249 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
250 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
251 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
252 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
253 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
254 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
255 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
256 |
|
0, 0, 0, 0, 0, 0, 0, 0 |
257 |
} |
} |
258 |
}; |
}; |
259 |
|
|
260 |
|
|
261 |
/****************************************************************** |
/****************************************************************** |
262 |
* encoder tables * |
* encoder tables * |
263 |
******************************************************************/ |
******************************************************************/ |
264 |
|
|
265 |
static VLC sprite_trajectory_code[32768]; |
/* DCT coefficients. Four tables, two for last = 0, two for last = 1. |
266 |
|
the sign bit must be added afterwards. */ |
267 |
|
|
268 |
static VLC sprite_trajectory_len[15] = { |
/* first part of coeffs for last = 0. Indexed by [run][level-1] */ |
|
{ 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} }; |
|
269 |
|
|
270 |
|
static VLC coeff_tab0[2][12] = { |
271 |
|
/* run = 0 */ |
272 |
|
{ |
273 |
|
{0x02, 2}, {0x0f, 4}, {0x15, 6}, {0x17, 7}, |
274 |
|
{0x1f, 8}, {0x25, 9}, {0x24, 9}, {0x21, 10}, |
275 |
|
{0x20, 10}, {0x07, 11}, {0x06, 11}, {0x20, 11} |
276 |
|
}, |
277 |
|
|
278 |
|
/* run = 1 */ |
279 |
|
{ |
280 |
|
{0x06, 3}, {0x14, 6}, {0x1e, 8}, {0x0f, 10}, |
281 |
|
{0x21, 11}, {0x50, 12}, {0x00, 0}, {0x00, 0}, |
282 |
|
{0x00, 0}, {0x00, 0}, {0x00, 0}, {0x00, 0} |
283 |
|
} |
284 |
|
}; |
285 |
|
|
286 |
|
/* rest of coeffs for last = 0. indexing by [run-2][level-1] */ |
287 |
|
|
288 |
|
static VLC coeff_tab1[25][4] = { |
289 |
|
/* First row is run=2, then each row is run 2 + index */ |
290 |
|
{{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 |
|
{{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 |
|
{{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 |
|
{{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 |
|
{{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 |
|
{{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 |
|
{{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 |
|
{{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 |
|
{{0x57, 12}, {0x00, 0}, {0x00, 0}, {0x00, 0}} |
315 |
|
|
316 |
|
}; |
317 |
|
|
318 |
|
/* first coeffs of last = 1. indexing by [run][level-1] */ |
319 |
|
|
320 |
|
static VLC coeff_tab2[2][3] = { |
321 |
|
/* run = 0 */ |
322 |
|
{{0x07, 4}, {0x19, 9}, {0x05, 11}}, |
323 |
|
/* run = 1 */ |
324 |
|
{{0x0f, 6}, {0x04, 11}, {0x00, 0}} |
325 |
|
}; |
326 |
|
|
327 |
|
/* rest of coeffs for last = 1. indexing by [run-2] */ |
328 |
|
|
329 |
|
static VLC coeff_tab3[40][1] = { |
330 |
|
{{0x0e, 6}}, {{0x0d, 6}}, {{0x0c, 6}}, {{0x13, 7}}, |
331 |
|
{{0x12, 7}}, {{0x11, 7}}, {{0x10, 7}}, {{0x1a, 8}}, |
332 |
|
{{0x19, 8}}, {{0x18, 8}}, {{0x17, 8}}, {{0x16, 8}}, |
333 |
|
{{0x15, 8}}, {{0x14, 8}}, {{0x13, 8}}, {{0x18, 9}}, |
334 |
|
{{0x17, 9}}, {{0x16, 9}}, {{0x15, 9}}, {{0x14, 9}}, |
335 |
|
{{0x13, 9}}, {{0x12, 9}}, {{0x11, 9}}, {{0x07, 10}}, |
336 |
|
{{0x06, 10}}, {{0x05, 10}}, {{0x04, 10}}, {{0x24, 11}}, |
337 |
|
{{0x25, 11}}, {{0x26, 11}}, {{0x27, 11}}, {{0x58, 12}}, |
338 |
|
{{0x59, 12}}, {{0x5a, 12}}, {{0x5b, 12}}, {{0x5c, 12}}, |
339 |
|
{{0x5d, 12}}, {{0x5e, 12}}, {{0x5f, 12}}, {{0x00, 0}} |
340 |
|
}; |
341 |
|
|
342 |
|
/* |
343 |
|
* New tables for Intra luminance coefficients. Same codewords, |
344 |
|
* different meaning |
345 |
|
*/ |
346 |
|
|
347 |
|
/* Coeffs for last = 0, run = 0. Indexed by [level-1] */ |
348 |
|
|
349 |
|
static VLC coeff_tab4[27] = { |
350 |
|
/* run = 0 */ |
351 |
|
{0x02, 2}, {0x06, 3}, {0x0f, 4}, |
352 |
|
{0x0d, 5}, {0x0c, 5}, {0x15, 6}, |
353 |
|
{0x13, 6}, {0x12, 6}, {0x17, 7}, |
354 |
|
{0x1f, 8}, {0x1e, 8}, {0x1d, 8}, |
355 |
|
{0x25, 9}, {0x24, 9}, {0x23, 9}, |
356 |
|
{0x21, 9}, {0x21, 10}, {0x20, 10}, |
357 |
|
{0x0f, 10}, {0x0e, 10}, {0x07, 11}, |
358 |
|
{0x06, 11}, {0x20, 11}, {0x21, 11}, |
359 |
|
{0x50, 12}, {0x51, 12}, {0x52, 12} |
360 |
|
}; |
361 |
|
|
362 |
|
/* Coeffs for last = 0, run = 1. Indexed by [level-1] */ |
363 |
|
|
364 |
|
static VLC coeff_tab5[10] = { |
365 |
|
{0x0e, 4}, {0x14, 6}, {0x16, 7}, {0x1c, 8}, {0x20, 9}, |
366 |
|
{0x1f, 9}, {0x0d, 10}, {0x22, 11}, {0x53, 12}, {0x55, 12} |
367 |
|
}; |
368 |
|
|
369 |
|
/* Coeffs for last = 0, run = 2 -> 9. Indexed by [run-2][level-1] */ |
370 |
|
|
371 |
|
static VLC coeff_tab6[8][5] = { |
372 |
|
/* run = 2 */ |
373 |
|
{{0x0b, 5}, {0x15, 7}, {0x1e, 9}, {0x0c, 10}, {0x56, 12}}, |
374 |
|
|
375 |
|
/* run = 3 */ |
376 |
|
{{0x11, 6}, {0x1b, 8}, {0x1d, 9}, {0x0b, 10}, {0x00, 0}}, |
377 |
|
|
378 |
|
/* run = 4 */ |
379 |
|
{{0x10, 6}, {0x22, 9}, {0x0a, 10}, {0x00, 0}, {0x00, 0}}, |
380 |
|
|
381 |
|
/* run = 5 */ |
382 |
|
{{0x0d, 6}, {0x1c, 9}, {0x08, 10}, {0x00, 0}, {0x00, 0}}, |
383 |
|
|
384 |
|
/* run = 6 */ |
385 |
|
{{0x12, 7}, {0x1b, 9}, {0x54, 12}, {0x00, 0}, {0x00, 0}}, |
386 |
|
|
387 |
|
/* run = 7 */ |
388 |
|
{{0x14, 7}, {0x1a, 9}, {0x57, 12}, {0x00, 0}, {0x00, 0}}, |
389 |
|
|
390 |
|
/* run = 8 */ |
391 |
|
{{0x19, 8}, {0x09, 10}, {0x00, 0}, {0x00, 0}, {0x00, 0}}, |
392 |
|
|
393 |
|
/* run = 9 */ |
394 |
|
{{0x18, 8}, {0x23, 11}, {0x00, 0}, {0x00, 0}, {0x00, 0}} |
395 |
|
}; |
396 |
|
|
397 |
|
/* Coeffs for last = 0, run = 10 -> 14. Indexed by [run-10] */ |
398 |
|
|
399 |
|
static VLC coeff_tab7[5][1] = { |
400 |
|
{{0x17, 8}}, |
401 |
|
{{0x19, 9}}, |
402 |
|
{{0x18, 9}}, |
403 |
|
{{0x07, 10}}, |
404 |
|
{{0x58, 12}} |
405 |
|
}; |
406 |
|
|
407 |
|
/* Coeffs for last = 1, run = 0. Indexed by [level-1] */ |
408 |
|
|
409 |
|
static VLC coeff_tab8[8] = { |
410 |
|
{0x07, 4}, {0x0c, 6}, {0x16, 8}, {0x17, 9}, |
411 |
|
{0x06, 10}, {0x05, 11}, {0x04, 11}, {0x59, 12} |
412 |
|
}; |
413 |
|
|
414 |
|
/* Coeffs for last = 1, run = 1 -> 6. Indexed by [run-1][level-1] */ |
415 |
|
|
416 |
|
static VLC coeff_tab9[6][3] = { |
417 |
|
/* run = 1 */ |
418 |
|
{{0x0f, 6}, {0x16, 9}, {0x05, 10}}, |
419 |
|
|
420 |
|
/* run = 2 */ |
421 |
|
{{0x0e, 6}, {0x04, 10}, {0x00, 0}}, |
422 |
|
|
423 |
|
/* run = 3 */ |
424 |
|
{{0x11, 7}, {0x24, 11}, {0x00, 0}}, |
425 |
|
|
426 |
|
/* run = 4 */ |
427 |
|
{{0x10, 7}, {0x25, 11}, {0x00, 0}}, |
428 |
|
|
429 |
|
/* run = 5 */ |
430 |
|
{{0x13, 7}, {0x5a, 12}, {0x00, 0}}, |
431 |
|
|
432 |
|
/* run = 6 */ |
433 |
|
{{0x15, 8}, {0x5b, 12}, {0x00, 0}} |
434 |
|
}; |
435 |
|
|
436 |
|
/* Coeffs for last = 1, run = 7 -> 20. Indexed by [run-7] */ |
437 |
|
|
438 |
|
static VLC coeff_tab10[14][1] = { |
439 |
|
{{0x14, 8}}, |
440 |
|
{{0x13, 8}}, |
441 |
|
{{0x1a, 8}}, |
442 |
|
{{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 |
|
|
|
/* DCT coefficients. Four tables, two for last = 0, two for last = 1. |
|
|
the sign bit must be added afterwards. */ |
|
455 |
|
|
456 |
/* MCBPC Indexing by cbpc in first two bits, mode in last two. |
static VLC *coeff_intra_last0[15] = { |
457 |
CBPC as in table 4/H.263, MB type (mode): 3 = 01, 4 = 10. |
coeff_tab4, |
458 |
Example: cbpc = 01 and mode = 4 gives index = 0110 = 6. */ |
coeff_tab5, |
459 |
|
coeff_tab6[0], |
460 |
|
coeff_tab6[1], |
461 |
|
coeff_tab6[2], |
462 |
|
coeff_tab6[3], |
463 |
|
coeff_tab6[4], |
464 |
|
coeff_tab6[5], |
465 |
|
coeff_tab6[6], |
466 |
|
coeff_tab6[7], |
467 |
|
coeff_tab7[0], |
468 |
|
coeff_tab7[1], |
469 |
|
coeff_tab7[2], |
470 |
|
coeff_tab7[3], |
471 |
|
coeff_tab7[4] |
472 |
|
}; |
473 |
|
|
474 |
|
static VLC *coeff_intra_last1[21] = { |
475 |
|
coeff_tab8, |
476 |
|
coeff_tab9[0], |
477 |
|
coeff_tab9[1], |
478 |
|
coeff_tab9[2], |
479 |
|
coeff_tab9[3], |
480 |
|
coeff_tab9[4], |
481 |
|
coeff_tab9[5], |
482 |
|
coeff_tab10[0], |
483 |
|
coeff_tab10[1], |
484 |
|
coeff_tab10[2], |
485 |
|
coeff_tab10[3], |
486 |
|
coeff_tab10[4], |
487 |
|
coeff_tab10[5], |
488 |
|
coeff_tab10[6], |
489 |
|
coeff_tab10[7], |
490 |
|
coeff_tab10[8], |
491 |
|
coeff_tab10[9], |
492 |
|
coeff_tab10[10], |
493 |
|
coeff_tab10[11], |
494 |
|
coeff_tab10[12], |
495 |
|
coeff_tab10[13], |
496 |
|
}; |
497 |
|
|
498 |
|
static VLC *coeff_inter_last0[27] = { |
499 |
|
coeff_tab0[0], |
500 |
|
coeff_tab0[1], |
501 |
|
coeff_tab1[0], |
502 |
|
coeff_tab1[1], |
503 |
|
coeff_tab1[2], |
504 |
|
coeff_tab1[3], |
505 |
|
coeff_tab1[4], |
506 |
|
coeff_tab1[5], |
507 |
|
coeff_tab1[6], |
508 |
|
coeff_tab1[7], |
509 |
|
coeff_tab1[8], |
510 |
|
coeff_tab1[9], |
511 |
|
coeff_tab1[10], |
512 |
|
coeff_tab1[11], |
513 |
|
coeff_tab1[12], |
514 |
|
coeff_tab1[13], |
515 |
|
coeff_tab1[14], |
516 |
|
coeff_tab1[15], |
517 |
|
coeff_tab1[16], |
518 |
|
coeff_tab1[17], |
519 |
|
coeff_tab1[18], |
520 |
|
coeff_tab1[19], |
521 |
|
coeff_tab1[20], |
522 |
|
coeff_tab1[21], |
523 |
|
coeff_tab1[22], |
524 |
|
coeff_tab1[23], |
525 |
|
coeff_tab1[24], |
526 |
|
}; |
527 |
|
|
528 |
|
static VLC *coeff_inter_last1[42] = { |
529 |
|
coeff_tab2[0], |
530 |
|
coeff_tab2[1], |
531 |
|
coeff_tab3[0], |
532 |
|
coeff_tab3[1], |
533 |
|
coeff_tab3[2], |
534 |
|
coeff_tab3[3], |
535 |
|
coeff_tab3[4], |
536 |
|
coeff_tab3[5], |
537 |
|
coeff_tab3[6], |
538 |
|
coeff_tab3[7], |
539 |
|
coeff_tab3[8], |
540 |
|
coeff_tab3[9], |
541 |
|
coeff_tab3[10], |
542 |
|
coeff_tab3[11], |
543 |
|
coeff_tab3[12], |
544 |
|
coeff_tab3[13], |
545 |
|
coeff_tab3[14], |
546 |
|
coeff_tab3[15], |
547 |
|
coeff_tab3[16], |
548 |
|
coeff_tab3[17], |
549 |
|
coeff_tab3[18], |
550 |
|
coeff_tab3[19], |
551 |
|
coeff_tab3[20], |
552 |
|
coeff_tab3[21], |
553 |
|
coeff_tab3[22], |
554 |
|
coeff_tab3[23], |
555 |
|
coeff_tab3[24], |
556 |
|
coeff_tab3[25], |
557 |
|
coeff_tab3[26], |
558 |
|
coeff_tab3[27], |
559 |
|
coeff_tab3[28], |
560 |
|
coeff_tab3[29], |
561 |
|
coeff_tab3[30], |
562 |
|
coeff_tab3[31], |
563 |
|
coeff_tab3[32], |
564 |
|
coeff_tab3[33], |
565 |
|
coeff_tab3[34], |
566 |
|
coeff_tab3[35], |
567 |
|
coeff_tab3[36], |
568 |
|
coeff_tab3[37], |
569 |
|
coeff_tab3[38], |
570 |
|
coeff_tab3[39], |
571 |
|
}; |
572 |
|
|
573 |
|
static VLC **coeff_vlc[4] = { |
574 |
|
coeff_intra_last0, |
575 |
|
coeff_intra_last1, |
576 |
|
coeff_inter_last0, |
577 |
|
coeff_inter_last1, |
578 |
|
}; |
579 |
|
|
580 |
|
/* |
581 |
|
* MCBPC Indexing by cbpc in first two bits, mode in last two. |
582 |
|
* 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 mcbpc_intra_tab[15] = { |
587 |
{0x01, 9}, {0x01, 1}, {0x01, 4}, {0x00, 0}, |
{0x01, 9}, {0x01, 1}, {0x01, 4}, {0x00, 0}, |
893 |
* decoder tables * |
* decoder tables * |
894 |
******************************************************************/ |
******************************************************************/ |
895 |
|
|
896 |
static VLC const mcbpc_intra_table[64] = { |
static const VLC mcbpc_intra_table[64] = { |
897 |
{-1, 0}, {20, 6}, {36, 6}, {52, 6}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, |
{-1, 0}, {20, 6}, {36, 6}, {52, 6}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, |
898 |
{19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, |
{19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, |
899 |
{35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, |
{35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, |
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} |
905 |
}; |
}; |
906 |
|
|
907 |
static VLC const mcbpc_inter_table[257] = { |
|
908 |
|
static const VLC mcbpc_inter_table[257] = { |
909 |
{VLC_ERROR, 0}, {255, 9}, {52, 9}, {36, 9}, {20, 9}, {49, 9}, {35, 8}, {35, 8}, |
{VLC_ERROR, 0}, {255, 9}, {52, 9}, {36, 9}, {20, 9}, {49, 9}, {35, 8}, {35, 8}, |
910 |
{19, 8}, {19, 8}, {50, 8}, {50, 8}, {51, 7}, {51, 7}, {51, 7}, {51, 7}, |
{19, 8}, {19, 8}, {50, 8}, {50, 8}, {51, 7}, {51, 7}, {51, 7}, {51, 7}, |
911 |
{34, 7}, {34, 7}, {34, 7}, {34, 7}, {18, 7}, {18, 7}, {18, 7}, {18, 7}, |
{34, 7}, {34, 7}, {34, 7}, {34, 7}, {18, 7}, {18, 7}, {18, 7}, {18, 7}, |
941 |
{0, 1} |
{0, 1} |
942 |
}; |
}; |
943 |
|
|
944 |
static VLC const cbpy_table[64] = { |
static const VLC 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}, |
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}, {15, 2} |
953 |
}; |
}; |
954 |
|
|
955 |
static VLC const TMNMVtab0[] = { |
|
956 |
|
VLC TMNMVtab0[] = { |
957 |
{3, 4}, {-3, 4}, {2, 3}, {2, 3}, {-2, 3}, {-2, 3}, {1, 2}, |
{3, 4}, {-3, 4}, {2, 3}, {2, 3}, {-2, 3}, {-2, 3}, {1, 2}, |
958 |
{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} |
959 |
}; |
}; |
960 |
|
|
961 |
static VLC const TMNMVtab1[] = { |
VLC TMNMVtab1[] = { |
962 |
{12, 10}, {-12, 10}, {11, 10}, {-11, 10}, |
{12, 10}, {-12, 10}, {11, 10}, {-11, 10}, |
963 |
{10, 9}, {10, 9}, {-10, 9}, {-10, 9}, |
{10, 9}, {10, 9}, {-10, 9}, {-10, 9}, |
964 |
{9, 9}, {9, 9}, {-9, 9}, {-9, 9}, |
{9, 9}, {9, 9}, {-9, 9}, {-9, 9}, |
985 |
{-4, 6}, {-4, 6}, {-4, 6}, {-4, 6} |
{-4, 6}, {-4, 6}, {-4, 6}, {-4, 6} |
986 |
}; |
}; |
987 |
|
|
988 |
static VLC const TMNMVtab2[] = { |
VLC TMNMVtab2[] = { |
989 |
{32, 12}, {-32, 12}, {31, 12}, {-31, 12}, |
{32, 12}, {-32, 12}, {31, 12}, {-31, 12}, |
990 |
{30, 11}, {30, 11}, {-30, 11}, {-30, 11}, |
{30, 11}, {30, 11}, {-30, 11}, {-30, 11}, |
991 |
{29, 11}, {29, 11}, {-29, 11}, {-29, 11}, |
{29, 11}, {29, 11}, {-29, 11}, {-29, 11}, |
1019 |
{-13, 10}, {-13, 10}, {-13, 10}, {-13, 10} |
{-13, 10}, {-13, 10}, {-13, 10}, {-13, 10} |
1020 |
}; |
}; |
1021 |
|
|
1022 |
static short const dc_threshold[] = { |
|
1023 |
21514, 26984, 8307, 28531, 29798, 24951, 25970, 26912, |
VLC DCT3Dtab0[] = { |
1024 |
8307, 25956, 26994, 25974, 8292, 29286, 28015, 29728, |
{4225, 7}, {4209, 7}, {4193, 7}, {4177, 7}, {193, 7}, {177, 7}, |
1025 |
25960, 18208, 21838, 18208, 19536, 22560, 26998, 8260, |
{161, 7}, {4, 7}, {4161, 6}, {4161, 6}, {4145, 6}, {4145, 6}, |
1026 |
28515, 25956, 8291, 25640, 30309, 27749, 11817, 22794, |
{4129, 6}, {4129, 6}, {4113, 6}, {4113, 6}, {145, 6}, {145, 6}, |
1027 |
30063, 8306, 28531, 29798, 24951, 25970, 25632, 29545, |
{129, 6}, {129, 6}, {113, 6}, {113, 6}, {97, 6}, {97, 6}, |
1028 |
29300, 25193, 29813, 29295, 26656, 29537, 29728, 8303, |
{18, 6}, {18, 6}, {3, 6}, {3, 6}, {81, 5}, {81, 5}, |
1029 |
26983, 25974, 24864, 25443, 29541, 8307, 28532, 26912, |
{81, 5}, {81, 5}, {65, 5}, {65, 5}, {65, 5}, {65, 5}, |
1030 |
29556, 29472, 30063, 25458, 8293, 28515, 25956, 2606 |
{49, 5}, {49, 5}, {49, 5}, {49, 5}, {4097, 4}, {4097, 4}, |
1031 |
|
{4097, 4}, {4097, 4}, {4097, 4}, {4097, 4}, {4097, 4}, {4097, 4}, |
1032 |
|
{1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, |
1033 |
|
{1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, |
1034 |
|
{1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, |
1035 |
|
{1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, |
1036 |
|
{1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, |
1037 |
|
{1, 2}, {1, 2}, {17, 3}, {17, 3}, {17, 3}, {17, 3}, |
1038 |
|
{17, 3}, {17, 3}, {17, 3}, {17, 3}, {17, 3}, {17, 3}, |
1039 |
|
{17, 3}, {17, 3}, {17, 3}, {17, 3}, {17, 3}, {17, 3}, |
1040 |
|
{33, 4}, {33, 4}, {33, 4}, {33, 4}, {33, 4}, {33, 4}, |
1041 |
|
{33, 4}, {33, 4}, {2, 4}, {2, 4}, {2, 4}, {2, 4}, |
1042 |
|
{2, 4}, {2, 4}, {2, 4}, {2, 4} |
1043 |
|
}; |
1044 |
|
|
1045 |
|
|
1046 |
|
VLC DCT3Dtab1[] = { |
1047 |
|
{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}, |
1049 |
|
{4401, 9}, {4401, 9}, {4385, 9}, {4385, 9}, {4369, 9}, {4369, 9}, |
1050 |
|
{4098, 9}, {4098, 9}, {353, 9}, {353, 9}, {337, 9}, {337, 9}, |
1051 |
|
{321, 9}, {321, 9}, {305, 9}, {305, 9}, {289, 9}, {289, 9}, |
1052 |
|
{273, 9}, {273, 9}, {257, 9}, {257, 9}, {241, 9}, {241, 9}, |
1053 |
|
{66, 9}, {66, 9}, {50, 9}, {50, 9}, {7, 9}, {7, 9}, |
1054 |
|
{6, 9}, {6, 9}, {4353, 8}, {4353, 8}, {4353, 8}, {4353, 8}, |
1055 |
|
{4337, 8}, {4337, 8}, {4337, 8}, {4337, 8}, {4321, 8}, {4321, 8}, |
1056 |
|
{4321, 8}, {4321, 8}, {4305, 8}, {4305, 8}, {4305, 8}, {4305, 8}, |
1057 |
|
{4289, 8}, {4289, 8}, {4289, 8}, {4289, 8}, {4273, 8}, {4273, 8}, |
1058 |
|
{4273, 8}, {4273, 8}, {4257, 8}, {4257, 8}, {4257, 8}, {4257, 8}, |
1059 |
|
{4241, 8}, {4241, 8}, {4241, 8}, {4241, 8}, {225, 8}, {225, 8}, |
1060 |
|
{225, 8}, {225, 8}, {209, 8}, {209, 8}, {209, 8}, {209, 8}, |
1061 |
|
{34, 8}, {34, 8}, {34, 8}, {34, 8}, {19, 8}, {19, 8}, |
1062 |
|
{19, 8}, {19, 8}, {5, 8}, {5, 8}, {5, 8}, {5, 8} |
1063 |
}; |
}; |
1064 |
|
|
1065 |
static VLC const dc_lum_tab[] = { |
VLC DCT3Dtab2[] = { |
1066 |
|
{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}, |
1068 |
|
{4529, 10}, {4529, 10}, {4529, 10}, {4529, 10}, {4513, 10}, {4513, 10}, |
1069 |
|
{4513, 10}, {4513, 10}, {4497, 10}, {4497, 10}, {4497, 10}, {4497, 10}, |
1070 |
|
{146, 10}, {146, 10}, {146, 10}, {146, 10}, {130, 10}, {130, 10}, |
1071 |
|
{130, 10}, {130, 10}, {114, 10}, {114, 10}, {114, 10}, {114, 10}, |
1072 |
|
{98, 10}, {98, 10}, {98, 10}, {98, 10}, {82, 10}, {82, 10}, |
1073 |
|
{82, 10}, {82, 10}, {51, 10}, {51, 10}, {51, 10}, {51, 10}, |
1074 |
|
{35, 10}, {35, 10}, {35, 10}, {35, 10}, {20, 10}, {20, 10}, |
1075 |
|
{20, 10}, {20, 10}, {12, 11}, {12, 11}, {21, 11}, {21, 11}, |
1076 |
|
{369, 11}, {369, 11}, {385, 11}, {385, 11}, {4561, 11}, {4561, 11}, |
1077 |
|
{4577, 11}, {4577, 11}, {4593, 11}, {4593, 11}, {4609, 11}, {4609, 11}, |
1078 |
|
{22, 12}, {36, 12}, {67, 12}, {83, 12}, {99, 12}, {162, 12}, |
1079 |
|
{401, 12}, {417, 12}, {4625, 12}, {4641, 12}, {4657, 12}, {4673, 12}, |
1080 |
|
{4689, 12}, {4705, 12}, {4721, 12}, {4737, 12}, {7167, 7}, |
1081 |
|
{7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, |
1082 |
|
{7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, |
1083 |
|
{7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, |
1084 |
|
{7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, |
1085 |
|
{7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, {7167, 7}, |
1086 |
|
{7167, 7} |
1087 |
|
}; |
1088 |
|
|
1089 |
|
|
1090 |
|
/* New tables for Intra luminance blocks */ |
1091 |
|
|
1092 |
|
VLC DCT3Dtab3[] = { |
1093 |
|
{0x10401, 7}, {0x10301, 7}, {0x00601, 7}, {0x10501, 7}, |
1094 |
|
{0x00701, 7}, {0x00202, 7}, {0x00103, 7}, {0x00009, 7}, |
1095 |
|
{0x10002, 6}, {0x10002, 6}, {0x00501, 6}, {0x00501, 6}, |
1096 |
|
{0x10201, 6}, {0x10201, 6}, {0x10101, 6}, {0x10101, 6}, |
1097 |
|
{0x00401, 6}, {0x00401, 6}, {0x00301, 6}, {0x00301, 6}, |
1098 |
|
{0x00008, 6}, {0x00008, 6}, {0x00007, 6}, {0x00007, 6}, |
1099 |
|
{0x00102, 6}, {0x00102, 6}, {0x00006, 6}, {0x00006, 6}, |
1100 |
|
{0x00201, 5}, {0x00201, 5}, {0x00201, 5}, {0x00201, 5}, |
1101 |
|
{0x00005, 5}, {0x00005, 5}, {0x00005, 5}, {0x00005, 5}, |
1102 |
|
{0x00004, 5}, {0x00004, 5}, {0x00004, 5}, {0x00004, 5}, |
1103 |
|
{0x10001, 4}, {0x10001, 4}, {0x10001, 4}, {0x10001, 4}, |
1104 |
|
{0x10001, 4}, {0x10001, 4}, {0x10001, 4}, {0x10001, 4}, |
1105 |
|
{0x00001, 2}, {0x00001, 2}, {0x00001, 2}, {0x00001, 2}, |
1106 |
|
{0x00001, 2}, {0x00001, 2}, {0x00001, 2}, {0x00001, 2}, |
1107 |
|
{0x00001, 2}, {0x00001, 2}, {0x00001, 2}, {0x00001, 2}, |
1108 |
|
{0x00001, 2}, {0x00001, 2}, {0x00001, 2}, {0x00001, 2}, |
1109 |
|
{0x00001, 2}, {0x00001, 2}, {0x00001, 2}, {0x00001, 2}, |
1110 |
|
{0x00001, 2}, {0x00001, 2}, {0x00001, 2}, {0x00001, 2}, |
1111 |
|
{0x00001, 2}, {0x00001, 2}, {0x00001, 2}, {0x00001, 2}, |
1112 |
|
{0x00001, 2}, {0x00001, 2}, {0x00001, 2}, {0x00001, 2}, |
1113 |
|
{0x00002, 3}, {0x00002, 3}, {0x00002, 3}, {0x00002, 3}, |
1114 |
|
{0x00002, 3}, {0x00002, 3}, {0x00002, 3}, {0x00002, 3}, |
1115 |
|
{0x00002, 3}, {0x00002, 3}, {0x00002, 3}, {0x00002, 3}, |
1116 |
|
{0x00002, 3}, {0x00002, 3}, {0x00002, 3}, {0x00002, 3}, |
1117 |
|
{0x00101, 4}, {0x00101, 4}, {0x00101, 4}, {0x00101, 4}, |
1118 |
|
{0x00101, 4}, {0x00101, 4}, {0x00101, 4}, {0x00101, 4}, |
1119 |
|
{0x00003, 4}, {0x00003, 4}, {0x00003, 4}, {0x00003, 4}, |
1120 |
|
{0x00003, 4}, {0x00003, 4}, {0x00003, 4}, {0x00003, 4} |
1121 |
|
}; |
1122 |
|
|
1123 |
|
|
1124 |
|
VLC DCT3Dtab4[] = { |
1125 |
|
{0x00012, 10}, {0x00011, 10}, {0x10e01, 9}, {0x10e01, 9}, |
1126 |
|
{0x10d01, 9}, {0x10d01, 9}, {0x10c01, 9}, {0x10c01, 9}, |
1127 |
|
{0x10b01, 9}, {0x10b01, 9}, {0x10a01, 9}, {0x10a01, 9}, |
1128 |
|
{0x10102, 9}, {0x10102, 9}, {0x10004, 9}, {0x10004, 9}, |
1129 |
|
{0x00c01, 9}, {0x00c01, 9}, {0x00b01, 9}, {0x00b01, 9}, |
1130 |
|
{0x00702, 9}, {0x00702, 9}, {0x00602, 9}, {0x00602, 9}, |
1131 |
|
{0x00502, 9}, {0x00502, 9}, {0x00303, 9}, {0x00303, 9}, |
1132 |
|
{0x00203, 9}, {0x00203, 9}, {0x00106, 9}, {0x00106, 9}, |
1133 |
|
{0x00105, 9}, {0x00105, 9}, {0x00010, 9}, {0x00010, 9}, |
1134 |
|
{0x00402, 9}, {0x00402, 9}, {0x0000f, 9}, {0x0000f, 9}, |
1135 |
|
{0x0000e, 9}, {0x0000e, 9}, {0x0000d, 9}, {0x0000d, 9}, |
1136 |
|
{0x10801, 8}, {0x10801, 8}, {0x10801, 8}, {0x10801, 8}, |
1137 |
|
{0x10701, 8}, {0x10701, 8}, {0x10701, 8}, {0x10701, 8}, |
1138 |
|
{0x10601, 8}, {0x10601, 8}, {0x10601, 8}, {0x10601, 8}, |
1139 |
|
{0x10003, 8}, {0x10003, 8}, {0x10003, 8}, {0x10003, 8}, |
1140 |
|
{0x00a01, 8}, {0x00a01, 8}, {0x00a01, 8}, {0x00a01, 8}, |
1141 |
|
{0x00901, 8}, {0x00901, 8}, {0x00901, 8}, {0x00901, 8}, |
1142 |
|
{0x00801, 8}, {0x00801, 8}, {0x00801, 8}, {0x00801, 8}, |
1143 |
|
{0x10901, 8}, {0x10901, 8}, {0x10901, 8}, {0x10901, 8}, |
1144 |
|
{0x00302, 8}, {0x00302, 8}, {0x00302, 8}, {0x00302, 8}, |
1145 |
|
{0x00104, 8}, {0x00104, 8}, {0x00104, 8}, {0x00104, 8}, |
1146 |
|
{0x0000c, 8}, {0x0000c, 8}, {0x0000c, 8}, {0x0000c, 8}, |
1147 |
|
{0x0000b, 8}, {0x0000b, 8}, {0x0000b, 8}, {0x0000b, 8}, |
1148 |
|
{0x0000a, 8}, {0x0000a, 8}, {0x0000a, 8}, {0x0000a, 8} |
1149 |
|
}; |
1150 |
|
|
1151 |
|
VLC DCT3Dtab5[] = { |
1152 |
|
{0x10007, 11}, {0x10007, 11}, {0x10006, 11}, {0x10006, 11}, |
1153 |
|
{0x00016, 11}, {0x00016, 11}, {0x00015, 11}, {0x00015, 11}, |
1154 |
|
{0x10202, 10}, {0x10202, 10}, {0x10202, 10}, {0x10202, 10}, |
1155 |
|
{0x10103, 10}, {0x10103, 10}, {0x10103, 10}, {0x10103, 10}, |
1156 |
|
{0x10005, 10}, {0x10005, 10}, {0x10005, 10}, {0x10005, 10}, |
1157 |
|
{0x00d01, 10}, {0x00d01, 10}, {0x00d01, 10}, {0x00d01, 10}, |
1158 |
|
{0x00503, 10}, {0x00503, 10}, {0x00503, 10}, {0x00503, 10}, |
1159 |
|
{0x00802, 10}, {0x00802, 10}, {0x00802, 10}, {0x00802, 10}, |
1160 |
|
{0x00403, 10}, {0x00403, 10}, {0x00403, 10}, {0x00403, 10}, |
1161 |
|
{0x00304, 10}, {0x00304, 10}, {0x00304, 10}, {0x00304, 10}, |
1162 |
|
{0x00204, 10}, {0x00204, 10}, {0x00204, 10}, {0x00204, 10}, |
1163 |
|
{0x00107, 10}, {0x00107, 10}, {0x00107, 10}, {0x00107, 10}, |
1164 |
|
{0x00014, 10}, {0x00014, 10}, {0x00014, 10}, {0x00014, 10}, |
1165 |
|
{0x00013, 10}, {0x00013, 10}, {0x00013, 10}, {0x00013, 10}, |
1166 |
|
{0x00017, 11}, {0x00017, 11}, {0x00018, 11}, {0x00018, 11}, |
1167 |
|
{0x00108, 11}, {0x00108, 11}, {0x00902, 11}, {0x00902, 11}, |
1168 |
|
{0x10302, 11}, {0x10302, 11}, {0x10402, 11}, {0x10402, 11}, |
1169 |
|
{0x10f01, 11}, {0x10f01, 11}, {0x11001, 11}, {0x11001, 11}, |
1170 |
|
{0x00019, 12}, {0x0001a, 12}, {0x0001b, 12}, {0x00109, 12}, |
1171 |
|
{0x00603, 12}, {0x0010a, 12}, {0x00205, 12}, {0x00703, 12}, |
1172 |
|
{0x00e01, 12}, {0x10008, 12}, {0x10502, 12}, {0x10602, 12}, |
1173 |
|
{0x11101, 12}, {0x11201, 12}, {0x11301, 12}, {0x11401, 12}, |
1174 |
|
{0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, |
1175 |
|
{0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, |
1176 |
|
{0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, |
1177 |
|
{0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, |
1178 |
|
{0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, |
1179 |
|
{0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, |
1180 |
|
{0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, |
1181 |
|
{0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7}, {0x01bff, 7} |
1182 |
|
}; |
1183 |
|
|
1184 |
|
VLC ERRtab[] = { |
1185 |
|
{VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0}, |
1186 |
|
{VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0}, |
1187 |
|
{VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0}, |
1188 |
|
{VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0}, |
1189 |
|
{VLC_ERROR, 0}, {VLC_ERROR, 0}, {VLC_ERROR, 0} |
1190 |
|
}; |
1191 |
|
|
1192 |
|
static const VLC dc_lum_tab[] = { |
1193 |
{0, 0}, {4, 3}, {3, 3}, {0, 3}, |
{0, 0}, {4, 3}, {3, 3}, {0, 3}, |
1194 |
{2, 2}, {2, 2}, {1, 2}, {1, 2}, |
{2, 2}, {2, 2}, {1, 2}, {1, 2}, |
1195 |
}; |
}; |
1196 |
|
|
1197 |
|
static __inline int |
1198 |
|
get_coeff(Bitstream * bs, |
1199 |
|
int *run, |
1200 |
|
int *last, |
1201 |
|
int intra, |
1202 |
|
int short_video_header) |
1203 |
|
{ |
1204 |
|
|
1205 |
|
uint32_t mode; |
1206 |
|
const VLC *tab; |
1207 |
|
int32_t level; |
1208 |
|
|
1209 |
|
if (short_video_header) // inter-VLCs will be used for both intra and inter blocks |
1210 |
|
intra = 0; |
1211 |
|
|
1212 |
|
tab = &DCT3D[intra][BitstreamShowBits(bs, 12)]; |
1213 |
|
|
1214 |
|
if (tab->code == -1) |
1215 |
|
goto error; |
1216 |
|
|
1217 |
|
BitstreamSkip(bs, tab->len); |
1218 |
|
|
1219 |
|
if (tab->code != ESCAPE) { |
1220 |
|
if (!intra) { |
1221 |
|
*run = (tab->code >> 4) & 255; |
1222 |
|
level = tab->code & 15; |
1223 |
|
*last = (tab->code >> 12) & 1; |
1224 |
|
} else { |
1225 |
|
*run = (tab->code >> 8) & 255; |
1226 |
|
level = tab->code & 255; |
1227 |
|
*last = (tab->code >> 16) & 1; |
1228 |
|
} |
1229 |
|
return BitstreamGetBit(bs) ? -level : level; |
1230 |
|
} |
1231 |
|
|
1232 |
|
if (short_video_header) { |
1233 |
|
// escape mode 4 - H.263 type, only used if short_video_header = 1 |
1234 |
|
*last = BitstreamGetBit(bs); |
1235 |
|
*run = BitstreamGetBits(bs, 6); |
1236 |
|
level = BitstreamGetBits(bs, 8); |
1237 |
|
|
1238 |
|
if (level == 0 || level == 128) |
1239 |
|
DEBUG1("Illegal LEVEL for ESCAPE mode 4:", level); |
1240 |
|
|
1241 |
|
return (level >= 128 ? -(256 - level) : level); |
1242 |
|
} |
1243 |
|
|
1244 |
|
mode = BitstreamShowBits(bs, 2); |
1245 |
|
|
1246 |
|
if (mode < 3) { |
1247 |
|
BitstreamSkip(bs, (mode == 2) ? 2 : 1); |
1248 |
|
|
1249 |
|
tab = &DCT3D[intra][BitstreamShowBits(bs, 12)]; |
1250 |
|
if (tab->code == -1) |
1251 |
|
goto error; |
1252 |
|
|
1253 |
|
BitstreamSkip(bs, tab->len); |
1254 |
|
|
1255 |
|
if (!intra) { |
1256 |
|
*run = (tab->code >> 4) & 255; |
1257 |
|
level = tab->code & 15; |
1258 |
|
*last = (tab->code >> 12) & 1; |
1259 |
|
} else { |
1260 |
|
*run = (tab->code >> 8) & 255; |
1261 |
|
level = tab->code & 255; |
1262 |
|
*last = (tab->code >> 16) & 1; |
1263 |
|
} |
1264 |
|
|
1265 |
|
if (mode < 2) // first escape mode, level is offset |
1266 |
|
level += max_level[*last + (!intra << 1)][*run]; // need to add back the max level |
1267 |
|
else if (mode == 2) // second escape mode, run is offset |
1268 |
|
*run += max_run[*last + (!intra << 1)][level] + 1; |
1269 |
|
|
1270 |
|
return BitstreamGetBit(bs) ? -level : level; |
1271 |
|
} |
1272 |
|
// third escape mode - fixed length codes |
1273 |
|
BitstreamSkip(bs, 2); |
1274 |
|
*last = BitstreamGetBits(bs, 1); |
1275 |
|
*run = BitstreamGetBits(bs, 6); |
1276 |
|
BitstreamSkip(bs, 1); // marker |
1277 |
|
level = BitstreamGetBits(bs, 12); |
1278 |
|
BitstreamSkip(bs, 1); // marker |
1279 |
|
|
1280 |
|
return (level & 0x800) ? (level | (-1 ^ 0xfff)) : level; |
1281 |
|
|
1282 |
|
error: |
1283 |
|
*run = VLC_ERROR; |
1284 |
|
return 0; |
1285 |
|
|
1286 |
|
} |
1287 |
|
|
1288 |
#endif /* _VLC_CODES_H */ |
#endif /* _VLC_CODES_H */ |