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1 | /* |
2 | * Apple ProRes compatible decoder | |
3 | * | |
4 | * Copyright (c) 2010-2011 Maxim Poliakovski | |
5 | * | |
6 | * This file is part of FFmpeg. | |
7 | * | |
8 | * FFmpeg is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2.1 of the License, or (at your option) any later version. | |
12 | * | |
13 | * FFmpeg is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with FFmpeg; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | #include "proresdata.h" | |
24 | ||
25 | const uint8_t ff_prores_progressive_scan[64] = { | |
26 | 0, 1, 8, 9, 2, 3, 10, 11, | |
27 | 16, 17, 24, 25, 18, 19, 26, 27, | |
28 | 4, 5, 12, 20, 13, 6, 7, 14, | |
29 | 21, 28, 29, 22, 15, 23, 30, 31, | |
30 | 32, 33, 40, 48, 41, 34, 35, 42, | |
31 | 49, 56, 57, 50, 43, 36, 37, 44, | |
32 | 51, 58, 59, 52, 45, 38, 39, 46, | |
33 | 53, 60, 61, 54, 47, 55, 62, 63 | |
34 | }; | |
35 | ||
36 | const uint8_t ff_prores_interlaced_scan[64] = { | |
37 | 0, 8, 1, 9, 16, 24, 17, 25, | |
38 | 2, 10, 3, 11, 18, 26, 19, 27, | |
39 | 32, 40, 33, 34, 41, 48, 56, 49, | |
40 | 42, 35, 43, 50, 57, 58, 51, 59, | |
41 | 4, 12, 5, 6, 13, 20, 28, 21, | |
42 | 14, 7, 15, 22, 29, 36, 44, 37, | |
43 | 30, 23, 31, 38, 45, 52, 60, 53, | |
44 | 46, 39, 47, 54, 61, 62, 55, 63 | |
45 | }; | |
46 | ||
47 | ||
48 | const uint8_t ff_prores_dc_codebook[4] = { | |
49 | 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0 | |
50 | 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0 | |
51 | 0x4D, // rice_order = 2, exp_golomb_order = 3, switch_bits = 1 | |
52 | 0x70 // rice_order = 3, exp_golomb_order = 4, switch_bits = 0 | |
53 | }; | |
54 | ||
55 | const uint8_t ff_prores_ac_codebook[7] = { | |
56 | 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0 | |
57 | 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0 | |
58 | 0x4C, // rice_order = 2, exp_golomb_order = 3, switch_bits = 0 | |
59 | 0x05, // rice_order = 0, exp_golomb_order = 1, switch_bits = 1 | |
60 | 0x29, // rice_order = 1, exp_golomb_order = 2, switch_bits = 1 | |
61 | 0x06, // rice_order = 0, exp_golomb_order = 1, switch_bits = 2 | |
62 | 0x0A, // rice_order = 0, exp_golomb_order = 2, switch_bits = 2 | |
63 | }; | |
64 | ||
65 | /** | |
66 | * Lookup tables for adaptive switching between codebooks | |
67 | * according with previous run/level value. | |
68 | */ | |
69 | const uint8_t ff_prores_run_to_cb_index[16] = | |
70 | { 5, 5, 3, 3, 0, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 2 }; | |
71 | ||
72 | const uint8_t ff_prores_lev_to_cb_index[10] = { 0, 6, 3, 5, 0, 1, 1, 1, 1, 2 }; |