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