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6147 | serge | 1 | /* |
2 | * Copyright (c) 2003 Michael Niedermayer |
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3 | * |
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4 | * This file is part of FFmpeg. |
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5 | * |
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6 | * FFmpeg is free software; you can redistribute it and/or |
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7 | * modify it under the terms of the GNU Lesser General Public |
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8 | * License as published by the Free Software Foundation; either |
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9 | * version 2.1 of the License, or (at your option) any later version. |
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10 | * |
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11 | * FFmpeg is distributed in the hope that it will be useful, |
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 | * Lesser General Public License for more details. |
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15 | * |
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16 | * You should have received a copy of the GNU Lesser General Public |
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17 | * License along with FFmpeg; if not, write to the Free Software |
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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19 | */ |
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20 | |||
21 | /** |
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22 | * @file |
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23 | * ASUS V1/V2 encoder/decoder common data |
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24 | */ |
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25 | |||
26 | #include |
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27 | |||
28 | #include "asv.h" |
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29 | #include "avcodec.h" |
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30 | #include "bswapdsp.h" |
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31 | |||
32 | const uint8_t ff_asv_scantab[64] = { |
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33 | 0x00, 0x08, 0x01, 0x09, 0x10, 0x18, 0x11, 0x19, |
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34 | 0x02, 0x0A, 0x03, 0x0B, 0x12, 0x1A, 0x13, 0x1B, |
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35 | 0x04, 0x0C, 0x05, 0x0D, 0x20, 0x28, 0x21, 0x29, |
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36 | 0x06, 0x0E, 0x07, 0x0F, 0x14, 0x1C, 0x15, 0x1D, |
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37 | 0x22, 0x2A, 0x23, 0x2B, 0x30, 0x38, 0x31, 0x39, |
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38 | 0x16, 0x1E, 0x17, 0x1F, 0x24, 0x2C, 0x25, 0x2D, |
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39 | 0x32, 0x3A, 0x33, 0x3B, 0x26, 0x2E, 0x27, 0x2F, |
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40 | 0x34, 0x3C, 0x35, 0x3D, 0x36, 0x3E, 0x37, 0x3F, |
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41 | }; |
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42 | |||
43 | const uint8_t ff_asv_ccp_tab[17][2] = { |
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44 | { 0x2, 2 }, { 0x7, 5 }, { 0xB, 5 }, { 0x3, 5 }, |
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45 | { 0xD, 5 }, { 0x5, 5 }, { 0x9, 5 }, { 0x1, 5 }, |
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46 | { 0xE, 5 }, { 0x6, 5 }, { 0xA, 5 }, { 0x2, 5 }, |
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47 | { 0xC, 5 }, { 0x4, 5 }, { 0x8, 5 }, { 0x3, 2 }, |
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48 | { 0xF, 5 }, // EOB |
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49 | }; |
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50 | |||
51 | const uint8_t ff_asv_level_tab[7][2] = { |
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52 | { 3, 4 }, { 3, 3 }, { 3, 2 }, { 0, 3 }, { 2, 2 }, { 2, 3 }, { 2, 4 } |
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53 | }; |
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54 | |||
55 | const uint8_t ff_asv_dc_ccp_tab[8][2] = { |
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56 | { 0x1, 2 }, { 0xD, 4 }, { 0xF, 4 }, { 0xC, 4 }, |
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57 | { 0x5, 3 }, { 0xE, 4 }, { 0x4, 3 }, { 0x0, 2 }, |
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58 | }; |
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59 | |||
60 | const uint8_t ff_asv_ac_ccp_tab[16][2] = { |
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61 | { 0x00, 2 }, { 0x3B, 6 }, { 0x0A, 4 }, { 0x3A, 6 }, |
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62 | { 0x02, 3 }, { 0x39, 6 }, { 0x3C, 6 }, { 0x38, 6 }, |
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63 | { 0x03, 3 }, { 0x3D, 6 }, { 0x08, 4 }, { 0x1F, 5 }, |
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64 | { 0x09, 4 }, { 0x0B, 4 }, { 0x0D, 4 }, { 0x0C, 4 }, |
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65 | }; |
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66 | |||
67 | const uint8_t ff_asv2_level_tab[63][2] = { |
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68 | { 0x3F, 10 }, { 0x2F, 10 }, { 0x37, 10 }, { 0x27, 10 }, { 0x3B, 10 }, { 0x2B, 10 }, { 0x33, 10 }, { 0x23, 10 }, |
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69 | { 0x3D, 10 }, { 0x2D, 10 }, { 0x35, 10 }, { 0x25, 10 }, { 0x39, 10 }, { 0x29, 10 }, { 0x31, 10 }, { 0x21, 10 }, |
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70 | { 0x1F, 8 }, { 0x17, 8 }, { 0x1B, 8 }, { 0x13, 8 }, { 0x1D, 8 }, { 0x15, 8 }, { 0x19, 8 }, { 0x11, 8 }, |
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71 | { 0x0F, 6 }, { 0x0B, 6 }, { 0x0D, 6 }, { 0x09, 6 }, |
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72 | { 0x07, 4 }, { 0x05, 4 }, |
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73 | { 0x03, 2 }, |
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74 | { 0x00, 5 }, |
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75 | { 0x02, 2 }, |
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76 | { 0x04, 4 }, { 0x06, 4 }, |
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77 | { 0x08, 6 }, { 0x0C, 6 }, { 0x0A, 6 }, { 0x0E, 6 }, |
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78 | { 0x10, 8 }, { 0x18, 8 }, { 0x14, 8 }, { 0x1C, 8 }, { 0x12, 8 }, { 0x1A, 8 }, { 0x16, 8 }, { 0x1E, 8 }, |
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79 | { 0x20, 10 }, { 0x30, 10 }, { 0x28, 10 }, { 0x38, 10 }, { 0x24, 10 }, { 0x34, 10 }, { 0x2C, 10 }, { 0x3C, 10 }, |
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80 | { 0x22, 10 }, { 0x32, 10 }, { 0x2A, 10 }, { 0x3A, 10 }, { 0x26, 10 }, { 0x36, 10 }, { 0x2E, 10 }, { 0x3E, 10 }, |
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81 | }; |
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82 | |||
83 | av_cold void ff_asv_common_init(AVCodecContext *avctx) |
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84 | { |
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85 | ASV1Context *const a = avctx->priv_data; |
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86 | |||
87 | ff_bswapdsp_init(&a->bbdsp); |
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88 | |||
89 | a->mb_width = (avctx->width + 15) / 16; |
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90 | a->mb_height = (avctx->height + 15) / 16; |
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91 | a->mb_width2 = (avctx->width + 0) / 16; |
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92 | a->mb_height2 = (avctx->height + 0) / 16; |
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93 | |||
94 | a->avctx = avctx; |
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95 | } |