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/*
* RealVideo 3 decoder
* copyright (c) 2007 Konstantin Shishkov
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file libavcodec/rv30data.h
* miscellaneous RV30 tables
*/
#ifndef AVCODEC_RV30DATA_H
#define AVCODEC_RV30DATA_H
#include <stdint.h>
/** DC quantizer mapping for RV30 */
static const uint8_t rv30_luma_dc_quant[32] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 22, 22, 23, 23, 23, 24, 24, 25, 25
};
/**
* This table is used for storing the differences
* between the predicted and the real intra type.
*/
static const uint8_t rv30_itype_code[9*9*2] = {
0, 0, 0, 1, 1, 0, 1, 1, 0, 2, 2, 0, 0, 3, 3, 0, 1, 2,
2, 1, 0, 4, 4, 0, 3, 1, 1, 3, 0, 5, 5, 0, 2, 2, 1, 4,
4, 1, 0, 6, 3, 2, 1, 5, 2, 3, 5, 1, 6, 0, 0, 7, 4, 2,
2, 4, 3, 3, 6, 1, 1, 6, 7, 0, 0, 8, 5, 2, 4, 3, 2, 5,
3, 4, 1, 7, 4, 4, 7, 1, 8, 0, 6, 2, 3, 5, 5, 3, 2, 6,
1, 8, 2, 7, 7, 2, 8, 1, 5, 4, 4, 5, 3, 6, 6, 3, 8, 2,
4, 6, 5, 5, 6, 4, 2, 8, 7, 3, 3, 7, 6, 5, 5, 6, 7, 4,
4, 7, 8, 3, 3, 8, 7, 5, 8, 4, 5, 7, 4, 8, 6, 6, 7, 6,
5, 8, 8, 5, 6, 7, 8, 6, 7, 7, 6, 8, 8, 7, 7, 8, 8, 8,
};
/**
* This table is used for retrieving the current intra type
* based on its neighbors and adjustment provided by
* code read and decoded before.
*
* This is really a three-dimensional matrix with dimensions
* [-1..9][-1..9][0..9]. The first and second coordinates are
* detemined by the top and left neighbors (-1 if unavailable).
*/
static const uint8_t rv30_itype_from_context[900] = {
0, 9, 9, 9, 9, 9, 9, 9, 9,
0, 2, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9,
2, 0, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9,
0, 1, 9, 9, 9, 9, 9, 9, 9,
0, 2, 1, 6, 4, 8, 5, 7, 3,
1, 0, 2, 6, 5, 4, 3, 8, 7,
2, 8, 0, 1, 7, 4, 3, 6, 5,
2, 0, 1, 3, 8, 5, 4, 7, 6,
2, 0, 1, 4, 6, 7, 8, 3, 5,
0, 1, 5, 2, 6, 3, 8, 4, 7,
0, 1, 6, 2, 4, 7, 5, 8, 3,
2, 7, 0, 1, 4, 8, 6, 3, 5,
2, 8, 0, 1, 7, 3, 4, 5, 6,
1, 0, 9, 9, 9, 9, 9, 9, 9,
1, 2, 5, 6, 3, 0, 4, 8, 7,
1, 6, 2, 5, 3, 0, 4, 8, 7,
2, 1, 7, 6, 8, 3, 5, 0, 4,
1, 2, 5, 3, 6, 8, 4, 7, 0,
1, 6, 2, 0, 4, 5, 8, 7, 3,
1, 5, 2, 6, 3, 8, 4, 0, 7,
1, 6, 0, 2, 4, 5, 7, 3, 8,
2, 1, 7, 6, 0, 8, 5, 4, 3,
1, 2, 7, 8, 3, 4, 5, 6, 0,
9, 9, 9, 9, 9, 9, 9, 9, 9,
0, 2, 1, 8, 7, 6, 5, 4, 3,
1, 2, 0, 6, 5, 7, 4, 8, 3,
2, 8, 7, 1, 0, 6, 4, 3, 5,
2, 0, 8, 1, 3, 7, 5, 4, 6,
2, 0, 4, 1, 7, 8, 6, 3, 5,
2, 0, 1, 5, 8, 4, 6, 7, 3,
2, 0, 6, 1, 4, 7, 8, 5, 3,
2, 7, 8, 1, 0, 5, 4, 6, 3,
2, 8, 7, 1, 0, 4, 3, 6, 5,
9, 9, 9, 9, 9, 9, 9, 9, 9,
0, 2, 1, 3, 5, 8, 6, 4, 7,
1, 0, 2, 5, 3, 6, 4, 8, 7,
2, 8, 1, 0, 3, 5, 7, 6, 4,
3, 2, 5, 8, 1, 4, 6, 7, 0,
4, 2, 0, 6, 1, 5, 8, 3, 7,
5, 3, 1, 2, 8, 6, 4, 0, 7,
1, 6, 0, 2, 4, 5, 8, 3, 7,
2, 7, 0, 1, 5, 4, 8, 6, 3,
2, 8, 3, 5, 1, 0, 7, 6, 4,
9, 9, 9, 9, 9, 9, 9, 9, 9,
2, 0, 6, 1, 4, 7, 5, 8, 3,
1, 6, 2, 0, 4, 5, 3, 7, 8,
2, 8, 7, 6, 4, 0, 1, 5, 3,
4, 2, 1, 0, 6, 8, 3, 5, 7,
4, 2, 6, 0, 1, 5, 7, 8, 3,
1, 2, 5, 0, 6, 3, 4, 7, 8,
6, 4, 0, 1, 2, 7, 5, 3, 8,
2, 7, 4, 6, 0, 1, 8, 5, 3,
2, 8, 7, 4, 6, 1, 3, 5, 0,
9, 9, 9, 9, 9, 9, 9, 9, 9,
5, 1, 2, 3, 6, 8, 0, 4, 7,
1, 5, 6, 3, 2, 0, 4, 8, 7,
2, 1, 5, 3, 6, 8, 7, 4, 0,
5, 3, 1, 2, 6, 8, 4, 7, 0,
1, 6, 2, 4, 5, 8, 0, 3, 7,
5, 1, 3, 6, 2, 0, 8, 4, 7,
1, 6, 5, 2, 0, 4, 3, 7, 8,
2, 7, 1, 6, 5, 0, 8, 3, 4,
2, 5, 1, 3, 6, 8, 4, 0, 7,
9, 9, 9, 9, 9, 9, 9, 9, 9,
1, 6, 2, 0, 5, 4, 3, 7, 8,
1, 6, 5, 4, 2, 3, 0, 7, 8,
2, 1, 6, 7, 4, 8, 5, 3, 0,
2, 1, 6, 5, 8, 4, 3, 0, 7,
6, 4, 1, 2, 0, 5, 7, 8, 3,
1, 6, 5, 2, 3, 0, 4, 8, 7,
6, 1, 4, 0, 2, 7, 5, 3, 8,
2, 7, 4, 6, 1, 5, 0, 8, 3,
2, 1, 6, 8, 4, 7, 3, 5, 0,
9, 9, 9, 9, 9, 9, 9, 9, 9,
2, 0, 4, 7, 6, 1, 8, 5, 3,
6, 1, 2, 0, 4, 7, 5, 8, 3,
2, 7, 8, 0, 1, 6, 4, 3, 5,
2, 4, 0, 8, 3, 1, 7, 6, 5,
4, 2, 7, 0, 6, 1, 8, 5, 3,
2, 1, 0, 8, 5, 6, 7, 4, 3,
2, 6, 4, 1, 7, 0, 5, 8, 3,
2, 7, 4, 0, 8, 6, 1, 5, 3,
2, 8, 7, 4, 1, 0, 3, 6, 5,
9, 9, 9, 9, 9, 9, 9, 9, 9,
2, 0, 8, 1, 3, 4, 6, 5, 7,
1, 2, 0, 6, 8, 5, 7, 3, 4,
2, 8, 7, 1, 0, 3, 6, 5, 4,
8, 3, 2, 5, 1, 0, 4, 7, 6,
2, 0, 4, 8, 5, 1, 7, 6, 3,
2, 1, 0, 8, 5, 3, 6, 4, 7,
2, 1, 6, 0, 8, 4, 5, 7, 3,
2, 7, 8, 4, 0, 6, 1, 5, 3,
2, 8, 3, 0, 7, 4, 1, 6, 5,
};
/**
* Loop filter limits are taken from this table.
*/
static const uint8_t rv30_loop_filt_lim[32] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5
};
#endif /* AVCODEC_RV30DATA_H */
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