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