1/* 2 * RealVideo 4 decoder 3 * copyright (c) 2007 Konstantin Shishkov 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * FFmpeg is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22/** 23 * @file 24 * miscellaneous RV40 tables 25 */ 26 27#ifndef AVCODEC_RV40DATA_H 28#define AVCODEC_RV40DATA_H 29 30#include <stdint.h> 31 32/** 33 * standard widths and heights coded in RV40 34 */ 35//@{ 36static const int rv40_standard_widths[] = { 160, 172, 240, 320, 352, 640, 704, 0}; 37static const int rv40_standard_heights[] = { 120, 132, 144, 240, 288, 480, -8, -10, 180, 360, 576, 0}; 38//@} 39 40#define MODE2_PATTERNS_NUM 20 41/** 42 * intra types table 43 * 44 * These values are actually coded 3-tuples 45 * used for detecting standard block configurations. 46 */ 47static const uint16_t rv40_aic_table_index[MODE2_PATTERNS_NUM] = { 48 0x000, 0x100, 0x200, 49 0x011, 0x111, 0x211, 0x511, 0x611, 50 0x022, 0x122, 0x222, 0x722, 51 0x272, 0x227, 52 0x822, 0x282, 0x228, 53 0x112, 0x116, 0x221 54}; 55 56/** 57 * luma quantizer values 58 * The second table is used for inter blocks. 59 */ 60static const uint8_t rv40_luma_dc_quant[2][32] = { 61 { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 62 16, 17, 17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 22, 22, 22, 22 }, 63 { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 64 16, 17, 18, 19, 20, 20, 21, 21, 22, 23, 23, 23, 24, 24, 24, 24 } 65}; 66 67/** 68 * @begingroup loopfilter coefficients used by the RV40 loop filter 69 * @{ 70 */ 71/** 72 * dither values for deblocking filter - left/top values 73 */ 74static const uint8_t rv40_dither_l[16] = { 75 0x40, 0x50, 0x20, 0x60, 0x30, 0x50, 0x40, 0x30, 76 0x50, 0x40, 0x50, 0x30, 0x60, 0x20, 0x50, 0x40 77}; 78/** 79 * dither values for deblocking filter - right/bottom values 80 */ 81static const uint8_t rv40_dither_r[16] = { 82 0x40, 0x30, 0x60, 0x20, 0x50, 0x30, 0x30, 0x40, 83 0x40, 0x40, 0x50, 0x30, 0x20, 0x60, 0x30, 0x40 84}; 85 86/** alpha parameter for RV40 loop filter - almost the same as in JVT-A003r1 */ 87static const uint8_t rv40_alpha_tab[32] = { 88 128, 128, 128, 128, 128, 128, 128, 128, 89 128, 128, 122, 96, 75, 59, 47, 37, 90 29, 23, 18, 15, 13, 11, 10, 9, 91 8, 7, 6, 5, 4, 3, 2, 1 92}; 93/** beta parameter for RV40 loop filter - almost the same as in JVT-A003r1 */ 94static const uint8_t rv40_beta_tab[32] = { 95 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 4, 4, 4, 6, 6, 96 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14, 15, 16, 17 97}; 98/** clip table for RV40 loop filter - the same as in JVT-A003r1 */ 99static const uint8_t rv40_filter_clip_tbl[3][32] = { 100 { 101 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 102 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 103 }, 104 { 105 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 106 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 5, 5 107 }, 108 { 109 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 110 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 5, 5, 5, 7, 8, 9 111 } 112}; 113/** @} */ // end loopfilter group 114 115#endif /* AVCODEC_RV40DATA_H */ 116