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101 lines
3.1 KiB
101 lines
3.1 KiB
/* |
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* RealVideo 4 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 |
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* miscellaneous RV40 tables |
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*/ |
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#ifndef AVCODEC_RV40DATA_H |
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#define AVCODEC_RV40DATA_H |
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#include <stdint.h> |
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/** |
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* standard widths and heights coded in RV40 |
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*/ |
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//@{ |
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static const int rv40_standard_widths[] = { 160, 172, 240, 320, 352, 640, 704, 0}; |
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static const int rv40_standard_heights[] = { 120, 132, 144, 240, 288, 480, -8, -10, 180, 360, 576, 0}; |
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//@} |
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#define MODE2_PATTERNS_NUM 20 |
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/** |
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* intra types table |
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* |
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* These values are actually coded 3-tuples |
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* used for detecting standard block configurations. |
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*/ |
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static const uint16_t rv40_aic_table_index[MODE2_PATTERNS_NUM] = { |
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0x000, 0x100, 0x200, |
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0x011, 0x111, 0x211, 0x511, 0x611, |
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0x022, 0x122, 0x222, 0x722, |
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0x272, 0x227, |
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0x822, 0x282, 0x228, |
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0x112, 0x116, 0x221 |
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}; |
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/** |
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* luma quantizer values |
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* The second table is used for inter blocks. |
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*/ |
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static const uint8_t rv40_luma_dc_quant[2][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, 17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 22, 22, 22, 22 }, |
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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, 20, 21, 21, 22, 23, 23, 23, 24, 24, 24, 24 } |
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}; |
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/** |
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* @name Coefficients used by the RV40 loop filter |
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* @{ |
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*/ |
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/** alpha parameter for RV40 loop filter - almost the same as in JVT-A003r1 */ |
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static const uint8_t rv40_alpha_tab[32] = { |
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128, 128, 128, 128, 128, 128, 128, 128, |
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128, 128, 122, 96, 75, 59, 47, 37, |
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29, 23, 18, 15, 13, 11, 10, 9, |
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8, 7, 6, 5, 4, 3, 2, 1 |
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}; |
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/** beta parameter for RV40 loop filter - almost the same as in JVT-A003r1 */ |
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static const uint8_t rv40_beta_tab[32] = { |
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0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 4, 4, 4, 6, 6, |
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6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14, 15, 16, 17 |
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}; |
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/** clip table for RV40 loop filter - the same as in JVT-A003r1 */ |
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static const uint8_t rv40_filter_clip_tbl[3][32] = { |
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{ |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
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}, |
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{ |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 5, 5 |
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}, |
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{ |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, |
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1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 5, 5, 5, 7, 8, 9 |
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} |
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}; |
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/** @} */ // end loopfilter group |
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#endif /* AVCODEC_RV40DATA_H */
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