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Rev | Author | Line No. | Line |
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6148 | serge | 1 | /* |
2 | * RealVideo 4 decoder |
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3 | * copyright (c) 2007 Konstantin Shishkov |
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4 | * |
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5 | * This file is part of FFmpeg. |
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6 | * |
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7 | * FFmpeg is free software; you can redistribute it and/or |
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8 | * modify it under the terms of the GNU Lesser General Public |
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9 | * License as published by the Free Software Foundation; either |
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10 | * version 2.1 of the License, or (at your option) any later version. |
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11 | * |
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12 | * FFmpeg is distributed in the hope that it will be useful, |
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 | * Lesser General Public License for more details. |
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16 | * |
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17 | * You should have received a copy of the GNU Lesser General Public |
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18 | * License along with FFmpeg; if not, write to the Free Software |
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19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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20 | */ |
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21 | |||
22 | /** |
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23 | * @file |
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24 | * miscellaneous RV40 tables |
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25 | */ |
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26 | |||
27 | #ifndef AVCODEC_RV40DATA_H |
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28 | #define AVCODEC_RV40DATA_H |
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29 | |||
30 | #include |
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31 | |||
32 | /** |
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33 | * standard widths and heights coded in RV40 |
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34 | */ |
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35 | //@{ |
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36 | static const int rv40_standard_widths[] = { 160, 172, 240, 320, 352, 640, 704, 0}; |
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37 | static const int rv40_standard_heights[] = { 120, 132, 144, 240, 288, 480, -8, -10, 180, 360, 576, 0}; |
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38 | //@} |
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39 | |||
40 | #define MODE2_PATTERNS_NUM 20 |
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41 | /** |
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42 | * intra types table |
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43 | * |
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44 | * These values are actually coded 3-tuples |
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45 | * used for detecting standard block configurations. |
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46 | */ |
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47 | static const uint16_t rv40_aic_table_index[MODE2_PATTERNS_NUM] = { |
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48 | 0x000, 0x100, 0x200, |
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49 | 0x011, 0x111, 0x211, 0x511, 0x611, |
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50 | 0x022, 0x122, 0x222, 0x722, |
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51 | 0x272, 0x227, |
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52 | 0x822, 0x282, 0x228, |
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53 | 0x112, 0x116, 0x221 |
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54 | }; |
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55 | |||
56 | /** |
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57 | * luma quantizer values |
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58 | * The second table is used for inter blocks. |
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59 | */ |
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60 | static const uint8_t rv40_luma_dc_quant[2][32] = { |
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61 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
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62 | 16, 17, 17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 22, 22, 22, 22 }, |
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63 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
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64 | 16, 17, 18, 19, 20, 20, 21, 21, 22, 23, 23, 23, 24, 24, 24, 24 } |
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65 | }; |
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66 | |||
67 | /** |
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68 | * @name Coefficients used by the RV40 loop filter |
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69 | * @{ |
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70 | */ |
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71 | |||
72 | /** alpha parameter for RV40 loop filter - almost the same as in JVT-A003r1 */ |
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73 | static const uint8_t rv40_alpha_tab[32] = { |
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74 | 128, 128, 128, 128, 128, 128, 128, 128, |
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75 | 128, 128, 122, 96, 75, 59, 47, 37, |
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76 | 29, 23, 18, 15, 13, 11, 10, 9, |
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77 | 8, 7, 6, 5, 4, 3, 2, 1 |
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78 | }; |
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79 | /** beta parameter for RV40 loop filter - almost the same as in JVT-A003r1 */ |
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80 | static const uint8_t rv40_beta_tab[32] = { |
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81 | 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 4, 4, 4, 6, 6, |
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82 | 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14, 15, 16, 17 |
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83 | }; |
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84 | /** clip table for RV40 loop filter - the same as in JVT-A003r1 */ |
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85 | static const uint8_t rv40_filter_clip_tbl[3][32] = { |
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86 | { |
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87 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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88 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
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89 | }, |
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90 | { |
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91 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, |
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92 | 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 5, 5 |
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93 | }, |
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94 | { |
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95 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, |
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96 | 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 5, 5, 5, 7, 8, 9 |
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97 | } |
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98 | }; |
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99 | /** @} */ // end loopfilter group |
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100 | |||
101 | #endif /* AVCODEC_RV40DATA_H */ |