/* * RealVideo 4 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/rv40data.h * miscellaneous RV40 tables */ #ifndef AVCODEC_RV40DATA_H #define AVCODEC_RV40DATA_H #include <stdint.h> /** * standard widths and heights coded in RV40 */ //@{ static const int rv40_standard_widths[] = { 160, 172, 240, 320, 352, 640, 704, 0}; static const int rv40_standard_heights[] = { 120, 132, 144, 240, 288, 480, -8, -10, 180, 360, 576, 0}; //@} #define MODE2_PATTERNS_NUM 20 /** * intra types table * * These values are actually coded 3-tuples * used for detecting standard block configurations. */ static const uint16_t rv40_aic_table_index[MODE2_PATTERNS_NUM] = { 0x000, 0x100, 0x200, 0x011, 0x111, 0x211, 0x511, 0x611, 0x022, 0x122, 0x222, 0x722, 0x272, 0x227, 0x822, 0x282, 0x228, 0x112, 0x116, 0x221 }; /** * luma quantizer values * The second table is used for inter blocks. */ static const uint8_t rv40_luma_dc_quant[2][32] = { { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 22, 22, 22, 22 }, { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 20, 21, 21, 22, 23, 23, 23, 24, 24, 24, 24 } }; /** * @begingroup loopfilter coefficients used by the RV40 loop filter * @{ */ /** * dither values for deblocking filter - left/top values */ static const uint8_t rv40_dither_l[16] = { 0x40, 0x50, 0x20, 0x60, 0x30, 0x50, 0x40, 0x30, 0x50, 0x40, 0x50, 0x30, 0x60, 0x20, 0x50, 0x40 }; /** * dither values for deblocking filter - right/bottom values */ static const uint8_t rv40_dither_r[16] = { 0x40, 0x30, 0x60, 0x20, 0x50, 0x30, 0x30, 0x40, 0x40, 0x40, 0x50, 0x30, 0x20, 0x60, 0x30, 0x40 }; /** alpha parameter for RV40 loop filter - almost the same as in JVT-A003r1 */ static const uint8_t rv40_alpha_tab[32] = { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 122, 96, 75, 59, 47, 37, 29, 23, 18, 15, 13, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 }; /** beta parameter for RV40 loop filter - almost the same as in JVT-A003r1 */ static const uint8_t rv40_beta_tab[32] = { 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 4, 4, 4, 6, 6, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14, 15, 16, 17 }; /** clip table for RV40 loop filter - the same as in JVT-A003r1 */ static const uint8_t rv40_filter_clip_tbl[3][32] = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 5, 5 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 5, 5, 5, 7, 8, 9 } }; /** @} */ // end loopfilter group #endif /* AVCODEC_RV40DATA_H */